T17 Service Manual Tennant Rider Floor Scrubber

2018-06-20

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T17
(Battery)

Rider Scrubber
Service Information Manual

The Safe Scrubbing AlternativeR
TennantTrueR Parts
IRISt a Tennant Technology

North America / International
To view, print or download
the latest parts or operator’s
manual, visit:
www.tennantco.com/manuals

9020167
Rev. 00 (6-2014)

*9020167*

INTRODUCTION
This manual provides necessary service and maintenance instructions.
Read this manual completely and understand
the machine before servicing it.
This machine will provide excellent service. However, the best results will be obtained at minimum costs if:

S The machine is operated with reasonable care.
S The machine is maintained regularly - per the machine maintenance instructions provided.
S The machine is maintained with manufacturer supplied or equivalent parts.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials,
old machine components and fluids in
an environmentally safe way according
to local waste disposal regulations.
Always remember to recycle.

MACHINE DATA
Please fill out at time of installation for future reference.
Model No. -Serial No. -Installation Date --

INTENDED USE
The T17 is an industrial/commercial rider machine designed to wet scrub both rough and smooth hard surfaces
(concrete, tile, stone, synthetic, etc). Typical applications include schools, hospitals / health care facilities, office
buildings, and retail centers. Do not use this machine on soil, grass, artificial turf, or carpeted surfaces. This machine
is intended for indoor use only. This machine is not intended for use on public roadways.

Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: (800) 553--8033 or (763) 513--2850
www.tennantco.com

Touch--N--Go, 1--STEP, Grip--N--Go, Dura--Track, SmartRelease, Duramer, are US registered and unregistered trademarks of Tennant Company.
Flow-Rite is a registered trademark of Flow-Rite Controls
Specifications and parts are subject to change without notice.
Original Instructions, copyright E 2014 TENNANT Company, Printed in U.S.A.

CONTENTS
Contents

Page

Safety Precautions.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 1-1
General Information
Component Locator. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-2
	Electrical Schematic, Master .  .  .  .  .  .  .  .  .  . 2-4
		Electrical Schematic Symbols.  .  .  .  .  . 2-7
	Operational Matrix. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-8
Specifications.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-15
		Fastener Torque.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-15
		Machine dimensions.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-16
		 General Machine Dimensions/
			Capacities.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-17
		 General Machine Performance.  .  .  . 2-18
		Power Type .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-18
		Tires.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-15
		SCRUBBING SIDE BRUSH SOLUTION
			 FLOW RATE (OPTION).  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-19
		 ec-H2O System (Option).  .  .  .  .  .  .  .  .  .  .  .  .  . 2-19
		Electrical Components. .  .  .  .  .  .  .  .  .  .  .  . 2-20
Maintenance
	Maintenance Chart. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-3
yellow touch points.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-5
Lubrication.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-5
	Batteries.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-6
Circuit Breakers, fuses, and relays.  .  . 3-11
	Electric Motors .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-12
Scrub Brushes. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-13
	Pre-Sweep brushes.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-18
Squeegee blades.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-21
Skirts and Seals. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-32
	Belts	. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-34
brakes	
.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-34
Tires		 .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-34
	Pushing, Towing, and Transporting
		the Machine.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-35
	Machine jacking .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-38
ec-h2o module flush procedure.  .  .  .  .  . 3-39
Storage Information. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-41
	Freeze Protection.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-41
	Preparing the Machine for
		 operation after storage .  .  .  .  .  .  .  .  .  .  . 3-43
	Priming the ec-H2O System.  .  .  .  .  .  .  .  .  .  .  .  . 3-44
Troubleshooting
	Onboard Diagnostics.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-2
		 Self-Test Mode.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-2
		 Configuration Mode.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-4
		 LCD Warnings. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-6
		 LCD Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
		Propel Diagnostic Mode.  .  .  .  .  .  .  .  .  .  .  . 4-11
		 Curtis 1234 Controller
			Diagnostics .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-13

T17 Service Information 9020167 (6-14)

Contents

Page

			Diagnostic LED Operation. . . . . . . 4-13
		 	Diagnostic Codes.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-14
		 Input Display Mode.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-22
		Manual Mode .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-24
		 CAN (Controller area network)
			 diagnostic mode. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-26
		MOTORS mode. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-27
		 Status led - power
			steering (option). .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-29
Subsystem Troubleshooting.  .  .  .  .  .  .  .  .  . 4-30
		Back-Up Alarm/Light .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-30
		lighting. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-32
		Main Scrub Brushes .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-34
		Side Scrub Brush.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-36
		Power-Up .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-38
		Propel. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-40
	Rear Squeegee Lift.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-42
		Scrub Head Lift .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-44
Side sweep Brushes .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-46
		Side sweep Brush Lift.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-50
Solution Control, Conventional. 4-52
			Main brush .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-52
			side brush .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-54
Solution Control, ecH2O.  .  .  .  .  .  .  .  .  .  . 4-56
Severe environment - spot
			cleaning.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-58
	ES (Extended scrub)
			Detergent pump. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-60
		 water pump.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-62
		 Spray Nozzle.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-64
		Vacuum Fan. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-66
Service
Service Procedures. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-2
		Rear Squeegee Lift Actuator .  .  .  .  .  .  .  . 5-2
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-2
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-3
			 rod adjustment .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-3
		 Side Brush Lift Actuator.  .  .  .  .  .  .  .  .  .  .  .  . 5-4
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-4
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-5
			Adusting side brush
				spring tube assembly. .  .  .  .  .  .  .  .  .  .  . 5-5
		Vacuum Fan Assembly .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-6
			Removal .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-6
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-7
		side brush motor.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-8
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-8
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-9
		 main brush lift actuator.  .  .  .  .  .  .  .  .  .  . 5-10
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-10
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-11

3

CONTENTS
Contents

Page

		Main Scrub head.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-12
			removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-12
			installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-13
		 main scrub brush motor
			(cylindrical) .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-14
				removal.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-14
				installation. . . . . . . . . . . . . . . . . . . . 5-15
		instrument panel.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-16
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-16
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-16
	logic board replacement. . . . . . . . . . 5-17
			removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-17
			installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-18
		 Steering Wheel Timing.  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-19
		Wheel Drive Assembly .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-20
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-20
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-21
			 Tire Replacement. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-22
		Rear brake adjustment .  .  .  .  .  .  .  .  .  .  .  .  . 5-23
Component Testing.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-24
		Recovery Tank Level Sensors.  .  .  .  .  .  . 5-24
		 Solution tank level sensor .  .  .  .  .  .  .  . 5-26
		Propel Motor (and Encoder).  .  .  .  .  .  . 5-28
		Propel Motor Cables.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-30
		 Throttle Sensor.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-32
		 Side Brush Lift Actuator.  .  .  .  .  .  .  .  .  .  .  . 5-34
		Main Brush Lift Actuator.  .  .  .  .  .  .  .  .  .  . 5-35
		 rear sqge Lift Actuator. . . . . . . . . . . . 5-36
		 vacuum fan. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-37
		side Sweep brush motor .  .  .  .  .  .  .  .  .  .  .  . 5-38
		 ec-h2o pump.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-39
		 ec-h2o pressure switch.  .  .  .  .  .  .  .  .  .  .  .  . 5-40

4

T17 Service Information 9020167 (6-14)

SAFETY PRECAUTIONS
IMPORTANT SAFETY INSTRUCTIONS − SAVE THESE INSTRUCTIONS
The following precautions are used throughout
this manual as indicated in their description:
WARNING: To warn of hazards or
unsafe practices that could result in
severe personal injury or death.
FOR SAFETY: To identify actions that must be
followed for safe operation of equipment.
The following information signals potentially
dangerous conditions to the operator. Know when
these conditions can exist. Locate all safety
devices on the machine. Report machine damage
or faulty operation immediately.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep
sparks and open flame away. Keep
covers open when charging.
WARNING: Flammable materials can
cause an explosion or fire. Do not use
flammable materials in tank(s).
WARNING: Flammable materials or
reactive metals can cause an explosion
or fire. Do not pick up.
WARNING: Electrical Hazard
− Disconnect Battery Cables and
Charger Plug Before Servicing
Machine.
− Do Not Charge Batteries with
Damaged Power Supply Cord. Do Not
Modify Plug.
If the charger supply cord is damaged or
broken, it must be replaced by the
manufacturer or its service agent or a
similarly qualified person in order to avoid a
hazard.

FOR SAFETY:
1. Do not operate machine:
− Unless trained and authorized.
− Unless operator manual is read and
understood.
− Under the influence of alcohol or
drugs.
− While using a cell phone or other
types of electronic devices.
− Unless mentally and physically
capable of following machine
instructions.
− With brake disabled.
− If it is not in proper operating
condition.
− With pads or accessories not supplied
or approved by Tennant. The use of
other pads may impair safety.
− In outdoor areas. This machine is for
indoor use only.
− In areas where flammable
vapors/liquids or combustible dusts
are present.
− In areas that are too dark to safely see
the controls or operate the machine
unless operating / headlights are
turned on.
− In areas with possible falling objects
unless equipped with overhead guard.
− With the rear bumper door / step in the
lowered position.
2. Before starting machine:
− Check machine for fluid leaks.
− Make sure all safety devices are in
place and operate properly.
− Check brakes and steering for proper
operation.
− Adjust seat and fasten seat belt (if
equipped).

This machine may be equipped with
technology that automatically communicates
over the cellular network. If this machine will
be operated where cell phone use is restricted
because of concerns related to equipment
interference, please contact a Tennant
representative for information on how to
disable the cellular communication
functionality.

T17 Service Information 9020167 (6-14)

1-1

SAFETY PRECAUTIONS
3. When using machine:
− Use only as described in this manual.
− Use brakes to stop machine.
− Go slowly on inclines and slippery
surfaces.
− Do not scrub on ramp inclines that
exceed 8.7% grade or transport
(GVWR) on ramp inclines that exceed
12% grade.
− Reduce speed when turning.
− Keep all parts of body inside operator
station while machine is moving.
− Always be aware of surroundings
while operating machine.
− Use care when reversing machine.
− Keep children and unauthorized
persons away from machine.
− Do not carry passengers on any part
of the machine.
− Always follow safety and traffic rules.
− Report machine damage or faulty
operation immediately.
− Follow mixing, handling and disposal
instructions on chemical containers.
− Follow site safety guidelines
concerning wet floors.
4. Before leaving or servicing machine:
− Stop on level surface.
− Set parking brake.
− Turn off machine and remove key.
5. When servicing machine:
− All work must be done with sufficient
lighting and visibility.
− Keep work area well ventilated.
− Avoid moving parts. Do not wear loose
clothing, jewelry and secure long hair.
− Block machine tires before jacking
machine up.
− Jack machine up at designated
locations only. Support machine with
jack stands.
− Use hoist or jack that will support the
weight of the machine.
− Do not push or tow the machine
without an operator in the seat
controlling the machine.
− Do not power spray or hose off
machine near electrical components.
− Disconnect battery connections and
charger cord before working on
machine.
− Do not use incompatible battery
chargers as this may damage battery
packs and potentially cause a fire.
− Inspect charger cord regularly for
damage.

1-2

− Do not disconnect the off−board
charger’s DC cord from the machine
receptacle when the charger is
operating. Arcing may result. If the
charger must be interrupted during
charging, disconnect the AC power
supply cord first.
− Avoid contact with battery acid.
− Keep all metal objects off batteries.
− Use a non−conductive battery removal
device.
− Use a hoist and adequate assistance
when lifting batteries.
− Battery installation must be done by
trained personnel.
− Follow site safety guidelines
concerning battery removal.
− All repairs must be performed by a
trained service mechanic.
− Do not modify the machine from its
original design.
− Use Tennant supplied or approved
replacement parts.
− Wear personal protective equipment
as needed and where recommended in
this manual.
For Safety: wear hearing protection.
For Safety: wear protective gloves.
For Safety: wear eye protection.
For Safety: wear protective dust mask.

6. When loading/unloading machine
onto/off truck or trailer.
− Drain tanks before loading machine.
− Lower scrub head and squeegee
before tying down machine.
− Turn off machine and remove key.
− Use ramp, truck or trailer that will
support the weight of the machine and
operator.
− Do not load/unload on ramp inclines
that exceed 21% grade.
− Use winch. Do not push the machine
onto/off the truck or trailer unless the
load height is 380 mm (15 in) or less
from the ground.
− Block machine tires.
− Tie machine down to truck or trailer.

T17 Service Information 9020167 (6-14)

SAFETY PRECAUTIONS
The safety labels appear on the machine in the
locations indicated. Replace damaged labels.
WARNING LABEL −
Flammable materials or
reactive metals can
cause explosion or fire.
Do not pick up.

WARNING LABEL −
Batteries emit hydrogen
gas. Explosion or fire can
result. Keep sparks and
open flame away. Keep
covers open when charging.

WARNING LABEL −
Flammable
materials can
cause explosion or
fire. Do not use
flammable
materials in tank.

FOR SAFETY LABEL −
Do not operate
Located on bottom of
machine with rear
recovery tank cover.
bumper door / step in
the lowered position.
Do not carry
passengers on any
part of the machine.

Located on rear
bumper door / step.
FOR SAFETY LABEL −
Read manual before
operating machine.

Located on bottom of
battery compartment
cover.

Located on
solution tank
cover and on
detergent tank
(option).

FOR SAFETY LABEL − Authorized
Service Mechanic Only.

Located on electrical
panel.

T17 Service Information 9020167 (6-14)

Located on circuit board cover and
electrical panel.

1-3

SAFETY PRECAUTIONS

1-4

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION

SECTION
Contents

2

Page

General Information .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-1
Component Locator. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-2
	Electrical Schematic, Master .  .  .  .  .  .  .  .  .  . 2-4
		Electrical Schematic Symbols.  .  .  .  .  . 2-7
	Operational Matrix. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-8
Specifications.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-15
		Fastener Torque.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-15
		Machine dimensions.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-16
		 General Machine Dimensions/
			Capacities.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-17
		 General Machine Performance.  .  .  . 2-18
		Power Type .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-18
		Tires.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-15
		SCRUBBING SIDE BRUSH SOLUTION
			 FLOW RATE (OPTION).  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2-19
		 ec-H2O System (Option).  .  .  .  .  .  .  .  .  .  .  .  .  . 2-19
		Electrical Components. .  .  .  .  .  .  .  .  .  .  .  . 2-20
		
		

T17 Service Information 9020167 (6-14)

2-1

GENERAL INFORMATION
Component Locator
Components
A

Interface Module and Touch Panel

B

Curtis® AC Propel Controller

C

Power Steering Assembly*

D

AC Drive Assembly

E

IRIS™ Module*

F

ec-H2O Pump*

G

BLDC (Brushless DC) Brush Motors

H

Spray Wand*

I

Dual Vacuum Fans

J

IRIS™ Shunt Assembly*

K

ec-H2O Module*

L

Backup Alarm/Flashing Light*,
Circuit Breaker #16, M2 Relay

M

Recovery Tank Full Switch,
ES Half-Full Switches*

N

Rear Squeegee Lift Actuator

O

Brake Adjustment Rods

P

Scrub Head Lift Actuator

Q

Brake Pedal Interlock Switch

R

Control Modules, M1 Contactor
Circuit Breakers (1-9)

S

Seat Switch

T

Battery Rollout Switch

K

A

J

I

B

C

H

D

E

F

G

A

T

L
M

S

* Optional Equipment

R

Q

N

2-2

O

P

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
Component Locator (cont'd)
Components
U

Battery

V

Detergent Metering Pump*

W

BLDC (Brushless DC) Side Scrub
Brush Motor

X

Side Scrub Brush Lift Actuator

Y

M3 Contactor, Power Steering
Motor Control*

Z

Throttle Sensor

S

Z

U

AA Pre-Sweep, Hopper Vacuum Duct*
BB

Pre-Sweep, Dust Filter Bag

CC

Pre-Sweep, Main Sweep Brush
Motor

Y

V
X

DD Pre-Sweep, Side Sweep Brush Motors
EE

Pre-Sweep, Hopper

FF

Pre-Sweep, Bag Housing Vacuum
Duct

W

* Optional Equipment

AA

FF

BB

CC
EE

DD

T17 Service Information 9020167 (6-14)

2-3

GENERAL INFORMATION
ELECTRICAL SCHEMATIC (1 of 3)
OPTIONAL TELEMETRY CABLES:

+

--

13/BLK
TELEMETRY SHUNT
IN-LINE (OPTIONAL)

36 VDC

SHUNT LOW
SEE SECTION D7

MTRMTR-24

1

2 WHT

2

3 GRN 3

3 GRN

3

4 RED 4

4 RED

4

613/BLK

M1
M2
M3
M4
#1208907

CODE_2

T2

BLK
6

3

4

3

4

YEL

YEL

AC PROPEL MOTOR
PIN OUT
(FACING MOTOR)

W1

U

A+

A-

ORA

W WHT

V GRN
B2: BRN

B1: PUR

T2: YEL

T1: YEL

M1A
MAIN CONTACTOR

24/YEL

17/PUR

0.5A

6

2

1

62/BRN

58/GRY

59/WHT

66/BLU

61/PNK

INTERNAL TO AC PROPEL MOTOR
(INCLUDES ENCOCER,
TEMP SENDER AND BRAKE SOL.)

SENDER, TEMP

PROPEL MOTOR CONTROL
HARNESS

22/RED-TAN

AMER
ENCODER

T1

OPT. POWER STEERING HARNESS

6

WHT

5

5

1 BLK

2 WHT 2

CODE_1

4

5

6

1 BLK 1

LED

BLU

PUR

M4

RED

4

M3
SW/B+

WHT

4

M2

MTR+

5

ORA

2

RED/GRN

3

79

MTR_CONTROL

M1

1

2

3

M3B

AUX1 CONTACTOR

145/GRN 2

MTR-

79/WHT

13/BLK

GND

OPT. POWER
STEERING

6/BLU

6/BLU

CABLE: BATT. TO MACHINE:

6

MTR+

+36VDC

5

15A-FRONT

RED
POWER STEERING

1

1

2

145/GRN 1

SHUNT-1

CABLE: BATT. TO MACHINE

TO: TELEMETRY
IN-LINE FUSE.

3

CB-15

1

13/BLK-WHT

13

POWER STEERING MODULE
1/RED

SHUNT HIGH
SEE SECTION D7

AUX1 CONTACTOR COIL

118/GRY

17/PUR

0.5A

RX

99/WHT

J1-29
B+

B

6

5

4

E-STOP

B 9/WHT J1-9

W

INTERLOCK

7/PUR

BRAKE
THROTTLE
GND
B+

P1-C

BLU

P1-B

YEL

14/YEL

P1-D

BLK

58/GRY

P1-A

RED

8/GRY

CAN H

CAN L

7/PUR
CLOSED = BATT.
ROLLED OUT

U/ORA

V

V/GRN

W

W/WHT

17
ISOLATED GROUND
POST = STAND OFF

GND

GND

13/BLK: CABLE: POWER/GND TO CURTIS.

CAN+/YEL

SW-1 PIN 15
KEY SWITCH

8/GRY
S-17: BATT. ROLL OUT (N.C.H.O.)

CAN-/GRN

4/YEL
PIN 30

8/GRY
S-11 PARK BRAKE SW. (N.C.H.O.)

U

TO: OPTIONAL BACK UP
LIGHT/ALARM HARNESS.

J1-23

CLOSED = PARK BRAKE SET

94

J1-34

CAN TERM L

J1-35

REV

THROTTLE

FWD

11/PNK J1-33

J1-11

2

BRAKE IN

10/TAN J1-22

8
5
4
1

J1-16

D-1

SEAT SWITCH HARNESS

SW-3A
6

FWD/REV SW.

15

J1-3 94/YEL

J1-21

CAN TERM H

SW-4: SEAT SWITCH

8/GRY

J1-13

J1-5

J1-8

J1-6

J1-7

J1-25

V

KSI

5/GRNJ1-10

A

CURTIS 1234 CONTROLLER

J1-4 15/GRN

MTR-1

3/ORA

A

U

B+

SW-2

E-STOP SWITCH

DRV4

RX

8/GRY J1-1

8/GRY

DRV3

PROPEL
SYSTEM

POWER/GND TO CURTIS.

150A-REAR

DRV2

1

TX

36VDC

J1-28

DRV1

70/TAN

THERMISTOR

61/PNK

3

I/O GND

58/GRY

4

PHASE A

2

AC PROPEL MOTOR

2/RED-TAN

TX

FUSE-1

3

1
GND

+12V

PHASE B

22/RED-TAN

CB-4

2.5A-REAR

M1B

MAIN CONTACTOR

J1-32

17/PUR

PROGRAMMING PORT

+12V

M1 TO FUSE-1
BUS BAR

M3A

58/GRY

58

J1-31

1/RED

2

1/RED

58

THROTTLE SENSOR

8/GRY

8/GRY

CANCAN+

2

WHT/PAIR #2

1

1

J1-4

BLK/PAIR #1

3

3

J1-1

RED/PAIR #1

4

4
211/PNK

INTERFACE MODULE
8/GRY
M1 TO FUSE-1
BUS BAR

8/GRY

8/GRY

J4-18

KSI

CAN_+12V
CAN GND

FUSE-2

P1-1

16/BLU: CABLE
100A-REAR

B+ POST

CANCAN+

2/RED-TAN

CB-6

19/WHT

19/WHT

J4-4

2.5A-REAR
SV-3
SWITCHED B+

2/RED-TAN

0.5A

MAIN NO DRIP VALVE 18/GRY J4-17

19/WHT

20/TAN

J4-16

P1-1

19/WHT

0.5A

ALARM

P2-1

2

19/WHT

21/PNK J4-15

DET. PUMP/SPOT CLEAN PUMP
1
23/ORA J4-14

12

19/WHT
LONG SPOT CLEAN
19/WHT

10
SHORT SPOT CLEAN

25/GRN

J4-12

9

26/BLU

J4-11

27/PUR

J4-9

28/GRY

J4-10

LED2

1

2

#1205906
MTR-3
LEFT SCRUB MTR

OPEN1

MTR-6

MAIN_CONT.
AUD. ALARM

SPOT_PUMP

+12VDC

MTR_1/U
MTR_2/V
MTR_3/W
HALL_1
HALL_2
HALL_3
+5VDC
OPEN2
GND
RIGHT SCRUB MTR

OPEN1

MTR-5

MTR_1/U
MTR_2/V
MTR_3/W

HALL_2

+5VDC
OPEN2
GND

2-4

3

203/ORA J10-3

1E

32/BRN

J9-1

2E

33/ORA

J9-2

3E

34/YEL

J9-3

4E

125/GRN

J9-4

5E
6E

J9-5

2
3
1E
2E
3E

J11-4
J11-5
J11-6

205/GRN
204/YEL

J9-6

208/GRY

J9-7

6E

J9-8

130/TAN

J9-9

131/PNK
132/BRN

4E
5E

SW-5
B+

GND

A

113/BLK-WHT

SOL. TANK PRESS.SENSOR

LONG_SPOT_LED
DIGITAL GND.
SHORT_SPOT_LED
HALF_1

J4-3

J4-8

113/BLK-WHT
DIGITAL GROUND
( GND. AT INPUT
= ENABLE SPOT SCRUB)
35/GRN
SHORT SPOT SCRUB

HALF_0
LONG_SPOT

J4-7

LT_MTR_1_1
LT_MTR_1_2

NOT_USED1

36/BLU
LONG SPOT SCRUB

113/BLK-WHT
SPOT CLEAN SW.
SW-6

11
8
5
4
1
9

12
6

13/BLK

2

13/BLK

10

FOR SPOT CLEAN
INDICATOR LIGHTS

J4-6

LT_MTR_1_3
HALL_1_LF
HALL_2_LF
HALL_3_LF
+5VDC_LF
GND_LF
VAC FAN #1

129/WHT

4
1

J10-2

C

J9-10

RT_MTR_2_1

RT_MTR_2_3

VAC FAN #2

CHASSIS GND. STRAP @ FRAME

105/GRN

105/GRN

HALL_1_RT
HALL_2_RT
HALL_3_RT
+5VDC_RT
GND_RT

133/ORA

SCRUB MODULE
38A

105/GRN

RT_MTR_2_2

FRONT CIRCUIT BREAKER PANEL

105/GRN
STATIC GROUNDING

GROUND

HALL_3

200/TAN

B

37/PUR

13/BLK

HALL_1

209/WHT J10-1

2

38/GRY

J4-1

NOT_USED0

SHORT_SPOT

1

J4-5

OUT

SCRUB UP/DOWN

4

13/BLK: CABLE

J4-13

SCRUB
MODULE

11
LED1

13/BLK

P

J4-2

P2-1

HORN

SOL.SENSOR
SPOT CLEAN LEDS
INTERNAL TO SW-6

J1-1

CAN-CAN+

ALARM-1

MTR-2
2

HORN

P2-1

J1-2

MAIN H20 DRIP
GND. POST

P1-1

J1-3

FLYBACK

HORN-1
19/WHT

J1-4

213/BLK-WHT

POD HARNESS

CAN+/YEL

2

J1-2

CAN-/GRN

8/GRY

+12VDC

BLK/PAIR #2

USER INTERFACE
MODULE

DIGITAL_GND

J1-3

13

134/YEL

SCRUB MOTOR HARNESS

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
ELECTRICAL SCHEMATIC (2 of 3)
13
2/RED-TAN

GROUND

2

CAN-CAN+

CB-1
2/RED-TAN

J5-1

40/TAN OR 40/BLU

60A-REAR
EXTEND LIMIT SW.

1

RETRACT LIMIT

1

41/PNK

J6-18

2

42/BRN

J6-17

SQGE UP/DN ACTUATOR

2

2

1

VAC FAN #1

19A

MTR-7

1

VAC FAN #2

19A

MTR-8

J7-1

44/YEL

J7-2

45/GRN

J7-3
J7-4

47/PUR

J6-16
J6-15
2

1

ES PUMP

3-5A

J6-14

48/GRY

MTR-9

CB-5
2/RED-TAN

49/WHT

J6-13

53/ORA

J6-7

2.5A-REAR

NOT_USED
SHIELD

HALF_0

CANCAN+

HALF_1

GND

HALF_2

CAN-/GRN

J3-1

CAN+/YEL

J5-2

13/BLK

13/BLK

SW-7

HALF_3

INPUT_0

J6-10

102/BRN

A

N.O.

B

13/BLK
REC. TANK FULL

( GROUND ON INPUT
= REC. FULL)

HALF_3B+

13/BLK

HALF_4
HALF_4B+

SW-8

INPUT_1

HALF_5
HALF_5B+
FLYBACK

GND_DIGITAL
PCB_SEL_0

53/ORA

J6-12
54/YEL
OUTPUT_0
SV-4: AUTO FILL SOL. VALVE

PCB-SEL_1

0.5A

53/ORA

55/GRN J6-11
OUTPUT_1
SV-5: AUTO FILL REC VALVE

SPARE_INPUT0

J6-6

J3-2

HALF_2B+

0.5A

J6-5

J3-3

WATER PICK UP
MODULE

2

43/ORA

B+

J3-4

LED_DRIVE0

SPARE_INPUT1

J6-9
J6-2

101/PNK

A

N.O.

B

( GROUND ON INPUT
= REC. 1/2 FULL)

13/BLK
REC. 1/2 TANK FULL (OPT. ES SYSTEM)

J6-8
J6-1
J6-3
J6-4

LED_DRIVE1

PRESWEEP=H2O=SIDE SWEEP

WATER PICKUP MODULE

CB-3A
2/RED-TAN

J5-1

56/BLU

20A-REAR
EXTEND LIMIT SW.

MTR-10

2

57/PUR J6-18

1

69/WHT J6-17

LEFT SIDE UP/DN ACT.

2

RETRACT LIMIT

1

3-5A

1

LEFT SIDE SWEEP
MTR-11

2

3-5A

1

RIGHT SIDE SWEEP
MTR-12

EXTEND LIMIT SW.

2

RIGHT SIDE UP/DN ACT.

2

J7-1

72/BRN

J7-2

73/ORA

J7-3

74/YEL

J7-4

75/GRN J6-16

1

1

RETRACT

71/PNK

J6-15

MTR-13LIMIT SW.

78/GRY J6-14

J6-13

CB-7A
2/RED-TAN
2.5A-REAR
NOT LOADED WITH
SIDE SWEEP OPTION

J6-7
J6-12
J6-11
J6-5
J6-6

NOT_USED
SHIELD

HALF_0

CANCAN+

HALF_1

GND

HALF_2

J3-3
J3-2

CAN-/GRN

J3-1

CAN+/YEL

J5-2

13/BLK

HALF_2B+
HALF_3

CAN-CAN+

J3-4

13/BLK

( GROUND ON INPUT
= ENABLE SIDE SWEEP)

INPUT_0

J6-10

OPTIONAL SIDE SWEEP
MODULE

2

B+

6

SW-9A

2

100/TAN

8
5
4
1

SIDE SWEEP SW.

HALF_3B+
HALF_4
HALF_4B+

INPUT_1

HALF_5
HALF_5B+
FLYBACK
OUTPUT_0
OUTPUT_1
LED_DRIVE0

GND_DIGITAL
PCB_SEL_0
PCB-SEL_1
SPARE_INPUT0
SPARE_INPUT1

J6-9
J6-2
J6-8
J6-1
J6-3
J6-4

LED_DRIVE1

PRESWEEP=H2O=SIDE SWEEP

OPT. SIDE SWEEP MODULE
OPT. SIDE SWEEP HARNESS
CAN-CAN+
CB-2
2/RED-TAN

80/TAN

J5-1

50A-REAR
EXTEND LIMIT SW.

MTR-14

1

2

2

20A

81/PNK J6-18

2
82/BRN
SWEEP UP/DN ACT.

2B

82/BRN J6-17

1

1

RETRACT LIMIT

81/PNK

1B

VAC FAN

MTR-16

1

18A

2

MIDDLE SWEEP MTR

MTR-15

3A

1

LEFT PRESWEEP MTR

MTR-17

1A

86/BLU

87/PUR

2A

87/PUR J7-2

83/ORA

3A

83/ORA J7-3

84/YEL

4A

84/YEL

J7-1

J7-4

89/WHT

4B

89/WHT J6-16

88/GRY

3B

88/GRY J6-15

94/YEL

6B

94/YEL J6-14

91/PNK

5B

91/PNK J6-13

MTR-18

2

3A

1

RIGHT PRESWEEP MTR

OPT. PRESWEEP HEAD HARNESS
2/RED-TAN

95/GRN J6-7

95/GRN

CB-7B
2.5A-REAR

J6-12
J6-11
95/GRN
95/GRN

12
10

11
9

LED-3

96/BLU

LED-4

117/PUR J6-6

J6-5

NOT_USED
SHIELD

HALF_0

CANCAN+

HALF_1

GND

HALF_2

J3-4
J3-3
J3-2

CAN-/GRN

J3-1

CAN+/YEL

J5-2

13/BLK

HALF_2B+
HALF_3

13/BLK

( GROUND ON INPUT
= ENABLE FUNCTION)

INPUT_0

J6-10

HALF_3B+

98/GRY
UP = VAC & SWEEP
97/GRY
DN.= SWEEP ONLY

HALF_4
HALF_4B+

FLYBACK
OUTPUT_0
OUTPUT_1
LED_DRIVE0

INPUT_1
GND_DIGITAL
PCB_SEL_0
PCB-SEL_1
SPARE_INPUT0
SPARE_INPUT1

2
10

J6-9
J6-2
J6-8
J6-1
J6-3
J6-4

LT-7

PRESWEEP MODULE

76

6

76/BLU

LT-6

GROUND

PRESWEEP=H2O=SIDE SWEEP

7B

12

LED_DRIVE1

PRESWEEP LIGHT/LED
INTERNAL TO SW-11

FROM: LIGHT SWITCH

11
8
5
4
1
9

FOR (2) PRESWEEP LIGHTS/LEDS

HALF_5
HALF_5B+

PRE SWEEP SWITCH
SW-10

OPTIONAL PRE SWEEP
MODULE

2

86/BLU

B+

LEFT HEADLIGHT (LED)

RIGHT HEADLIGHT (LED)

8B

OPT. PRESWEEP HEAD HARNESS

13
OPT. PRESWEEP BASE HARNESS

T17 Service Information 9020167 (6-14)

2-5

GENERAL INFORMATION
ELECTRICAL SCHEMATIC (3 of 3)
2
13
CAN-CAN+
CB-3C
2/RED-TAN

J5-1

103/ORA

35A-REAR

B+ POST

J2-4

CAN_+12V

J2-3

CAN GND

CB-7C
2/RED-TAN

CAN-

104/YEL

CAN+

1

2.5A-REAR

104/YEL

J4-4

GND. POST

1

MTR-19

0.5A

104/YEL

0.5A

104/YEL

2

1

3

3 106/BLU

J4-10

2

2 107/PUR

J4-9

SIDE PUMP

SV-6: SIDE H2O VALVE

2

115/GRN J4-7

1

108/GRY J4-8

SIDE ACTUATOR

SIDE SCRUB MTR

OPEN1
MTR_3/W
MTR_2/V
MTR_1/U
HALL_1
HALL_2
HALL_3
+5VDC
OPEN2
GND

109/WHT

J6-3

2

110/TAN

J6-2

1

111/PNK

J6-1

1E

135/GRN J4-12

2E

136/BLU

J4-14

3E

137/PUR

J4-16

4E

138/GRY J4-15

5E

J4-13

6E

139/WHT J4-11

13/BLK

13/BLK

( GROUND ON INPUT
= ENABLE SIDE SCRUB)

SIDE_H2O_VALVE

J4-6

INPUT_0

SIDE_ACT0
SIDE_ACT1

MTR_3

2

SIDE SCRUB ON/OFF SW.

J4-2

MTR_1

J4-3

NOT_USED1
HALL_1_SIDE
HALL_2_SIDE
HALL_3_SIDE
+5VDC_SIDE
OPEN
GND_SIDE

SIDE SCRUB MODULE
1

2.5A-REAR

46/BLU

J4-1

46/BLU

J4-2

51/PNK J4-5

46/BLU
ECH20 SIDE BR. VALVE

J4-6
J4-7

VCC_2

CAN-

SIDE BR. VALVE

CAN+

NOT USED #1

2/RED-TAN

2A

MTR-22

50/TAN

50/TAN

52/BRN

2

2 J4-4

(B) ECHO/FAST PUMP

(A)

2.5A-REAR

C-1

6

SW-13

J4-9

PRESS_IN

13/BLK

-

NO

COM

60/TAN

NC

PRESS NC, OPENS @ 20PSI +/-2PSI = FAULT

CAPACITOR, 0.01UF, 200V

50/TAN

6

J4-12

PUMP

52/BRN

+

CAN+/YEL

J4-13

GND_2
GND_3

CB-9

CAN-/GRN

J4-10
J4-14

GND_1

NOT USED #2

J4-11

ECHO MODULE

SV-7

0.5A

OPT. SIDE SCRUB HARNESS

VCC_1

4

1

3

2/RED-TAN

CB-8

8
5
4
1

J4-1

NOT_USED0

MTR_2

SW-12A

6

112/BRN

J4-5

SPARE_IN0
SPARE_IN1

3

CAN+/YEL

J5-2

SIDE_PUMP

SIDE SCRUB BRUSH

4

CAN-/GRN

J2-1

SIDE SCRUB
MODULE

EXTEND LIMIT SW.
BRN

RETRACT LIMIT
BLK
BLU

MTR-20 RED

MTR-21

FLYBACK

J2-2

50/TAN

5

5 J4-3

FLYBACK

J4-8

OPEN1

(ECHO sparger)

(ECHO cell)

8EA/GRY

J5-1

7EA/PUR

J5-2

3EA/ORA

J5-3

4EA/YEL

J5-4

EC-H20 MODULE

SPGR_A

SW-14

SPGR_B
CELL_A

FLUSH_GND

CELL_B

FLUSH_SW

J5-6

9EA/WHT

J5-5

13EA/BLK

EC-H20 FLUSH SW.

OPT. INTERNAL EC-H2O MODULE HARNESS
OPT. EC-H2O HARNESS

77/PUR

P1-23

77/PUR

2A

P1-22

B+
B+

13

P1-7

P1-6

IN-LINE FUSE-3

SHUNT LOW

13/BLK-WHT

SHUNT-

1/RED

1/RED

79/WHT
SHUNT HIGH

SHUNT+

79

P1-21

GND

13/BLK

13/BLK

P1-20

GND

CAN-CAN+

P1-19

GND
CANCAN+

P1-11 CAN-/GRN2

2

P1-3

1

CAN+/YEL1

TELEMETRY MODULE

6/BLU

CB-10

SW-15

2

63/ORA

15A-FRONT

6
10

OPT. TELEMETRY HARNESS

D-2

64/YEL

1
4 64/YEL
5
8
9 13/BLK

OPT. SPRAY
WAND

6

OPT. TELEMETRY
MODULE

DIRECT TO
BATTERY B+

1

13/BLK
MTR-23

64/YEL

SPRAY NOZZLE PUMP

13/BLK

SPRAY NOZZLE SWITCH
76/BLU

76 TO: PRESWEEP HARNESS
LT-1

76/BLU
CB-11

65/GRN

3
1

65/GRN

15A-FRONT

67/PUR

8
6

7
5

65/GRN

4
2

CB-12
2.5A-FRONT

LT-2

76/BLU

CB-13

68/GRY
68/GRY

2.5A-FRONT

STROBE LT.
FLASHING LT.

LIGHT SWITCH
ALL LIGHTS OFF/DN
WARN. LIGHT ON/CENTER
HEAD & WARN ON/UP

= 2-1, 6-5
= 2-3, 6-7
= 3-4, 7-8

LT-3

93/ORA

3

3

LEFT HEADLIGHT (LED)

13/BLK

RIGHT HEADLIGHT (LED)

13/BLK

OHG FLASH/STROBE LIGHT

13/BLK

OPT. LIGHTS

6/BLU

SW-16

OPT. OHG WARNING LIGHT HARNESS
LT-4

76/BLU

13/BLK

6

6

13/BLK

CB-14
2.5A-FRONT

LT-3

94 15

ALARM-2

1

1

17/PUR

CB-16
2.5A

LOCATED INSIDE
LIGHT ASSEMBLY

90/TAN

P1-1

P2-1 85/GRN-WHT
87

M2B

30 13/BLK

REVERSE ALARM
90/TAN

85/GRN-WHT
LT-5

NOT USED
(FOR SPECIALS)

5

5

2

2

15/GRN

17/PUR
17
+36VDC FROM CONTROLLER

OPT. BACK UP
ALARM/LIGHT

13/BLK

FLASH/STROBE LIGHT

LOW = REV.

4

94/YEL
LOW = FWD. OR REV.
(SPECIAL ONLY)

92/BRN

RED TAILLIGHT (LED)
STROBE LT.
FLASHING LT.
4
92/BRN

WHT, BACK UP LIGHT (LED)
90/TAN
OPT. LIGHT KIT
OPT. LIGHT / ALARM HARNESS

2-6

86

M2A

85 15/GRN

OPT. REVERSE RELAY

T17 Service Information 9020167 (6-14)

RN

GENERAL INFORMATION

Note:
Note:
ecH2O Side Brush
ecH2O Enable:
Electrical
schematic
symbols
J7-12
Low=SV3 H20 Valve ON
J7-10 Low=Turn ON
ecH2O
ecH2O Pump ON 100%

IGN ST

+

Battery

Circuit Breaker

DPDT Switch

Key Switch
Fuse

Pressure Switch
Connected

Diode

Motor
Not Connected

Single Continuation Tab

Connector
Double Continuation Tab
Energized

3 Phase AC
Induction Motor

FaST/ES Pum

Relay Coil
Adaptor Harness

Motor Encoder

N.C. Relay Contacts

Sensor
(Variable Resistor)

N.O. Relay Contacts

Momenary Switch N.O.

Horn or Alarm

Contact Switch N.C.

Notes

Sweep OF
Sweep ON
Vac & Swe

Assembly

AC Plug

+

Operational

-

Capacitor

T17 Service Information 9020167 (6-14)

Light

Solenoid Valve

ElectroMagnetic
Brake

2-7

GENERAL INFORMATION
Operational Matrix
Output

Pin(s)

Enable

Input

Disable

Input

Vacuum Fan,
Scrubbing

Water PU
Module:
Fan #1
J7-1, J7-2
Fan #2
J7-3, J7-4

1-STEP Scrub On

Interface
Module

1-STEP Scrub Off

Interface
Module

Squeegee/Vacuum On

Interface
Module

Squeegee/Vacuum
Off

Interface
Module

Recovery Tank Full

Water PU
Module, J610 Low

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

Rear Squeegee
Down

Main Scrub Brushes

2-8

Water PU
Module:
J6-17, J6-18

Scrub Module:
Right Motor
J10-1, J10-2,
J10-3, J9-1,
J9-2, J9-3,
J9-4, J9-5
Left Motor
J11-4, J11-5,
J11-6, J9-6,
J9-7, J9-8,
J9-9, J9-10

1-STEP Scrub On

Interface
Module

1-STEP Scrub Off

Interface
Module

Squeegee/Vacuum On

Interface
Module

Squeegee/Vacuum
Off

Interface
Module

Reverse Propel

Curtis PMC,
J1-33 High

Recovery Tank Full

Water PU
Module, J610 Low

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

1-STEP Scrub On

Interface
Module

1-STEP Scrub Off

Interface
Module

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Recovery Tank Full

Water PU
Module, J610 Low

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output

Pin(s)

Enable

Input

Disable

Input

Scrub Head Down

Scrub Module:
J4-9, J4-10

1-STEP Scrub On

Interface
Module

1-STEP Scrub Off

Interface
Module

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Recovery Tank Full

Water PU
Module, J610 Low

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

1-STEP Scrub Off

Interface
Module

Side Brush Extend/
Down
(Option)

Side Scrub
Module:
J4-7, J4-8

1-STEP Scrub On

Interface
Module

Side Brush Switch On

Side Scrub
Side Brush Switch Off
Module, J4-6
Ground

T17 Service Information 9020167 (6-14)

Side Scrub
Module, J4-6
Not Grounded

Recovery Tank Full

Water PU
Module, J610 Low

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

2-9

GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output

Pin(s)

Enable

Input

Disable

Input

Side Scrub Brush
Motor
(Option - Non PreSweep)

Side Scrub
Module:
Motor
J6-1, J6-2,
J6-3, J4-11,
J4-12, J4-13,
J4-14, J4-15

1-STEP Scrub On

Interface
Module

1-STEP Scrub Off

Interface
Module

Side Brush Switch On

Side Scrub
Side Brush Switch Off
Module, J4-6
Ground

Side Scrub
Module, J4-6
Not Grounded

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Recovery Tank Full

Water PU
Module, J610 Low

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

Solution Control
(Conventional)

2-10

Scrub Module:
Main Valve
J4-17

1-STEP Scrub On

Interface
Module

1-STEP Scrub Off

Interface
Module

Solution Control On

Interface
Module

Solution Control Off

Interface
Module

Side Scrub
Module
(Option):
Side Pump
J4-10
Side Valve
J4-9

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Side Scrub Switch On
(Option)

Side Scrub
Side Scrub Switch Off
Module, J4-6 (Option)
≈ Grounded

Side Scrub
Module,
J6-10 ≈ Not
Grounded

Recovery Tank Full

Water PU
Module, J610 Low

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output

Pin(s)

Enable

Input

Disable

Input

Solution Control
ec-H2O
(Option)

ec-H2O
Module:
Side Br.
Valve
J4-5
Pump
J4-4
Sparger
J5-1, J5-2
e-Cell
J5-3, J5-4

1-STEP Scrub On

Interface
Module,
CAN-Bus

1-STEP Scrub Off

Interface
Module,
CAN-Bus

Solution Control On

Interface
Module,
CAN-Bus

Solution Control Off

Interface
Module,
CAN-Bus

ec-H2O Button On

Interface
Module,
CAN-Bus

ec-H2O Button Off

Interface
Module,
CAN-Bus

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Recovery Tank Full

Water PU
Module, J610 Low

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

ec-H2O System Fault
(see ec-H2O system
troubleshooting)

ec-H2O
Module to
CAN-Bus

Circuit Fault

CAN-Bus to
Interface
Module

Flush Mode

ec-H2O Module, J5-5 and
J5-6 = Closed

System Over Pressure
(≈ > 20 psi)

ec-H2O Module, J4-9 =
Not Grounded

Severe Environment
Mode

Scrub Module, J4-8 Low
or J4-7 Low

T17 Service Information 9020167 (6-14)

2-11

GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output

Pin(s)

Enable

Input

Disable

Input

ES (Extended Scrub)
Pump
(Option)

Water PU
Module:
Water Pump
J6-13, J6-14

1-STEP Scrub On

Interface
Module,
CAN-Bus

1-STEP Scrub Off

Interface
Module,
CAN-Bus

Solution Control On

Interface
Module,
CAN-Bus

Solution Control Off

Interface
Module,
CAN-Bus

ES Button On

Interface
Module,
CAN-Bus

ES Button Off

Interface
Module,
CAN-Bus

Recovery Tank 1/2 Full

Water PU
Recovery Tank Full
Module, J6-9
= Ground

Water PU
Module, J610 = Ground

Solution Tank Not Full

Scrub Module, J4-1 ≈ <
1.34 Vdc

Solution Tank Full

Scrub Module, J4-1 ≈ >
1.34 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

NOTE: 45 seconds/10
seconds Off until
recovery tank is less
than 1/2 full and solution tank is not full.

ES Detergent Pump:
(Option)
NOTE: Does not operate on 1 solution level
LED.

2-12

Scrub Module:
Detergent
Pump
J4-14

1-STEP Scrub On

Interface
Module,
CAN-Bus

1-STEP Scrub Off

Interface
Module,
CAN-Bus

Solution Control On
(2 or 3 Solution LEDs
On)

Interface
Module,
CAN-Bus

Solution Control Off
(including 0 or 1 solution LEDs On)

Interface
Module,
CAN-Bus

ES Button On

Interface
Module,
CAN-Bus

ES Button Off

Interface
Module,
CAN-Bus

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Recovery Tank Full

Water PU
Module, J610 = Ground

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output

Pin(s)

Severe Environment
Pump:
(Option)

Scrub Module:
Detergent
Pump
NOTE: Short and Long J4-14
cycle duration times
can be adjusted in
configuration mode.

Pre-Sweep Brushes

Pre-Sweep Brushes
Down

Pre-Sweep
Module:
Main
J7-3, J7-4
Right
J6-13, J6-14
Left
J6-15, J6-16

Pre-Sweep
Module:
Actuator
J6-17, J6-18

Enable

Input

Disable

Input

1-STEP Scrub On

Interface
Module,
CAN-Bus

1-STEP Scrub Off

Interface
Module,
CAN-Bus

Solution Control On

Interface
Module,
CAN-Bus

Solution Control Off

Interface
Module,
CAN-Bus

Severe Environment
Switch On

Scrub Module, J4-8 Low
or J4-7 Low

Severe Environment
Switch Off

Scrub Module, J4-8 Not
Low and J4-7
Not Low

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Configured for 1%, 2%,
or 3% Mix Ratio

Interface
Module,
CAN-Bus

Configured for 0% Mix Interface
Ratio
Module,
CAN-Bus
Recovery Tank Full

Water PU
Module, J610 = Ground

Solution Tank Empty

Scrub Module, J4-1 ≈ <
0.73 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

Pre-Sweep Switch On

Pre-Sweep
Module:
J6-9 or J6-10
= Grounded

Pre-Sweep Switch Off

Pre-Sweep
Module:
J6-9 and
J6-10 = Not
Grounded

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

Pre-Sweep Switch Off

Pre-Sweep
Module:
J6-9 and
J6-10 = Not
Grounded

Pre-Sweep Switch On

T17 Service Information 9020167 (6-14)

Pre-Sweep
Module:
J6-9 or J6-10
= Grounded

2-13

GENERAL INFORMATION
OPERATIONAL MATRIX (cont'd)
Output

Pin(s)

Enable

Input

Disable

Input

Pre-Sweep Vacuum
Fan

Pre-Sweep
Module:
Vacuum Fan
J7-1, J7-2

Pre-Sweep Vacuum Fan
Switch On

Pre-Sweep
Module:
J6-10 =
Grounded

Pre-Sweep Vacuum
Fan Switch Off

Pre-Sweep
Module:
J6-10 = Not
Grounded

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Low Battery Voltage

Curtis PMC
Module, J1-1
≈ < 32 Vdc

Circuit Fault

CAN-Bus to
Interface
Module

Propel

Back-Up Alarm/
Lights
(Option)

2-14

Seat Switch Closed

Curtis PMC,
J1-9 ≈ Battery Voltage

Seat Switch Open

Curtis PMC,
J1-9 ≈ No Battery Voltage

Fwd/Rev Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Fwd/Rev Switch Input

Curtis PMC,
J1-22 or J133 ≈ Battery
Voltage

Brake Switch Input

Curtis PMC,
J1-11 ≈ Battery Voltage

Rollout Battery Switch Curtis PMC,
Input
J1-11 ≈ Battery Voltage
Curtis® Propel Control
Fault

See Curtis
PMC Diagnostics.

Reverse Switch Input

Curtis PMC,
J1-33 ≈ Battery Voltage

Forward Switch Input

Curtis PMC,
J1-22 ≈ Battery Voltage

Reverse Throttle Command

Curtis PMC,
J1-6 ≈
0.2-5 vDC

Neutral - Ready State

Curtis PMC,
J1-6 ≈ 0 Vdc

Curtis® Propel Control
Fault

See Curtis
PMC Diagnostics.

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
FASTENER TORQUE
SAE (STANDARD)
Thread
Size

SAE
Grade 1

SAE
Grade 2
Carriage
Bolts

Thread
Cutting
Thread
Rolling

SAE
Grade 5
Socket &
Stainless
Steel

SAE
Grade 8

Headless
Socket Set
Screws

Square
Head Set
Screws

(5) - (6.5)

(4) - (6)

5 (.125)

(6) - (8)

(9) - (11)

6 (.138)

(7) - (9)

(20) - (24)

(9) - (11)

8 (.164)

(12) - (16)

(40) - (47)

(17) - (23)

10 (.190)

(20) - (26)

(50) - (60)

(31) - (41)

1/4 (.250)

4-5

5-6

7 - 10

7 - 10

10 - 13

6-8

17 - 19

5/16 (.312)

7-9

9 - 12

15 - 20

15 - 20

20 - 26

13 - 15

32 - 38

3/8 (.375)

13 - 17

16 - 21

27 - 35

36 - 47

22 - 26

65 - 75

7/16 (.438)

20 - 26

26 - 34

43 - 56

53 - 76

33 - 39

106 - 124

1/2 (.500)

27 - 35

39 - 51

65 - 85

89 - 116

48 - 56

162 - 188

Inch Pounds

4 (.112)

80 - 104

130 - 170

171 - 265

228 - 383

129 - 168

215 - 280

313 - 407

592 - 688

1 (1.000)

258 - 335

500 - 650

757 - 984

1281 - 1489

Foot Pounds

5/8 (.625)
3/4 (.750)

METRIC
Thread
Size

4.8/5.6

8.8
Stainless Steel

10.9

12.9

Set
Screws

M3

43 - 56 Ncm

99 - 128 Ncm

139 - 180 Ncm

166 - 215 Ncm

61 - 79 Ncm

M4

99 - 128 Ncm

223 - 290 Ncm

316 - 410 Ncm

381 - 495 Ncm

219 - 285 Ncm

M5

193 - 250 Ncm

443 - 575 Ncm

624 - 810 Ncm

747 - 970 Ncm

427 - 554 Ncm

M6

3.3 - 4.3 Nm

7.6 - 9.9 Nm

10.8 - 14 Nm

12.7 - 16.5 Nm

7.5 - 9.8 Nm

M8

8.1 - 10.5 Nm

18.5 - 24 Nm

26.2 - 34 Nm

31 - 40 Nm

18.3 - 23.7 Nm

M10

16 - 21 Nm

37 - 48 Nm

52 - 67 Nm

63 - 81 Nm

M12

28 - 36 Nm

64 - 83 Nm

90 - 117 Nm

108 - 140 Nm

M14

45 - 58 Nm

102 - 132 Nm

142 - 185 Nm

169 - 220 Nm

M16

68 - 88 Nm

154 - 200 Nm

219 - 285 Nm

262 - 340 Nm

M20

132 - 171 Nm

300 - 390 Nm

424 - 550 Nm

508 - 660 Nm

M22

177 - 230 Nm

409 - 530 Nm

574 - 745 Nm

686 - 890 Nm

M24

227 - 295 Nm

520 - 675 Nm

732 - 950 Nm

879 - 1140 Nm

T17 Service Information 9020167 (6-14)

2-15

GENERAL INFORMATION
MACHINE DIMENSIONS

Rear
Squeegee
1245 mm
(49 in)

2096 mm
(82.5 in)

1480 mm
(58.25 in)

2230 mm
(87.9 in)

2-16

Frame
(roller to roller)
1168 mm (46 in)

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
SPECIFICATIONS
GENERAL MACHINE DIMENSIONS/CAPACITIES
Item

Dimension/Capacity

Length

2230 mm (87.9 in)

Length (with Pre-Sweep)

2870 mm (113 in)

Width (less squeegee)

1168 mm (46 in)

Width (with squeegee)

1245 mm (49 in)

Width (with side brush)

1346 mm (53 in)

Wheel base

1163 mm (45.8 in)

Track

1041 mm (41 in)

Height

1480 mm (58.25 in)

Height with overhead guard

2096 mm (82.5 in)

Disk brush diameter for scrubbing side brush (option)

411 mm (16.18 in)

Disk brush diameter for sweeping side brush (option)

482.60 mm (19 in)

Disk brush diameter for Pre-Sweep (option)

482.60 mm (19 in)

Disk brush diameter

510 mm (20 in)

Cylindrical brush diameter

230 mm (9 in)

Cylindrical brush length

1015 mm (40 in)

Cylindrical sweep brush diameter for Pre-Sweep (option)

203.20 mm (8 in)

Cylindrical sweep brush length for Pre-Sweep (option)

709.68 mm (27.94 in)

Scrubbing path width

1015 mm (40 in)

Scrubbing path width (with scrubbing side brush)

1320 mm (52 in)

Scrubbing path width (with right sweeping side brush)

1165 mm (46 in)

Scrubbing path width (with dual sweeping side brushes)

1320 mm (52 in)

Solution tank capacity

285 L (75 gallons)

Recovery tank capacity

346 L (91.1 gallons)

Demisting Chamber

61 L (16.1 gallons)

Weight (Empty)

875 Kg (1925 lbs)

Weight (with standard 510 AH batteries)

1525 Kg (3365 lbs)

GVWR

2750 Kg (6062 lbs)

Protection Grade

IPX3

Values determined as per EN 60335-2-72

Measure Cylindrical scrub head

MeasureDisk scrub head

Sound pressure level LpA

67.8 dB(A)

65.3 dB(A)

Sound uncertainty KpA

2.8 dB(A)

3.0 dB(A)

Sound power level LWA + Uncertainty KWA

88.2 dB(A)

85.8 dB(A)

Vibration - Hand-arm

2.04 m/s2

2.04 m/s2

Vibration - Whole body

0.27 m/s2

0.27 m/s2

Vibration uncertainty K

0.18 m/s2

0.18 m/s2

T17 Service Information 9020167 (6-14)

2-17

GENERAL INFORMATION
SPECIFICATIONS
GENERAL MACHINE PERFORMANCE
Item

Measure

Aisle turnaround width

1854 mm (73 in)

Aisle turnaround width (with Pre-Sweep)

2362 mm (93 in)

Travel Speed (Forward)

9 Km/h (5.5 mph)

Travel Speed while scrubbing (Forward)

6.5 Km/h (4 mph)

Travel Speed (Reverse)

5 Km/h (3 mph)

Maximum ramp incline for loading - Empty

21%

Maximum ramp incline for scrubbing

8.7%

Maximum ramp incline for scrubbing (With optional ramp kit)

10.5%

Maximum ramp incline for transporting (GVWR)

12%

Maximum ramp incline for transporting (GVWR)(With optional ramp kit)

14.8%

Maximum ambient temperature for machine operation

43° C (110° F)

Minimum temperature for operating machine scrubbing functions

0° C (32° F)

Runtime (estimated continuous: economy mode)

510 AH, Up to 3.5 hours
750 AH, Up to 5.75 hours
930 AH, Up to 7.5 hours

Ground clearance (transport)

64 mm (2.5 in)

Vacuum fan speed

14500 RPM

Vacuum fan water lift

1650 mm (65 in)

Disk main brush speed

315 RPM

Disk main brush down pressure

Up to 250 kg (550 lb)

Cylindrical main brush speed

500 RPM

Cylindrical main brush down pressure

Up to 250 kg (550 lb)

POWER TYPE
Type

Quantity

Volts

Ah Rating

Weight

Batteries (Max. battery dimensions:
406 mm (7 in) W x
963 mm (11.8 in) L x
775 mm (15 in) H

1

36

510 @ 6 hr rate

661 kg (1458 lb)

1

36

750 @ 6 hr rate

963 kg (2124 lb)

1

36

930 @ 6 hr rate

988 kg (2178 lb)

Type

Use

Voltage

kW (hp)

Electric Motors

Scrub brush (disk)

36 VDC

1.125 (1.50)

Scrub brush (cylindrical)

36 VDC

1.125 (1.50)

Vacuum Fan

36 VDC

0.6 (0.8)

Propelling

36 VAC

2.25 (3.0)

Type

VDC

Amperage

Hz

Phase

VAC

Chargers (Smart)

36

21

45-65

1

85-265

2-18

T17 Service Information 9020167 (6-14)

GENERAL INFORMATION
SPECIFICATIONS
TIRES
Location

Type

Size

Front (1)

Solid

150 mm wide x 350 mm OD (5.8 in wide x 13.8 in OD)

Rear (2)

Solid

125 mm wide x 380 mm OD (5 in wide x 15 in OD)

SCRUBBING SIDE BRUSH SOLUTION FLOW RATE (OPTION)
Item

Measure

Solution pump

36 Volt DC, up to 1.51 LPM (0.40 GPM)

ec-H2O SYSTEM (OPTION)
Item

Measure

Solution pump

36 Volt DC, 5A, 6.8 LPM (1.8 GPM) open flow,

Solution flow rate (machines without optional scrubbing 3.79 LPM (1.0 GPM)
side brush)
Solution flow rate (machines with optional scrubbing
side brush)

T17 Service Information 9020167 (6-14)

Up to 2.65 LPM (0.70 GPM) - To main scrub head
Up to 1.14 LPM (0.30 GPM) - To scrubbing side brush

2-19

GENERAL INFORMATION
SPECIFICATIONS
ELECTRICAL COMPONENTS (For Reference Only)
Component

Measure

Contactor Coil, M1

102 Ω +/- 10%

Relay Coil, M2

0.822 kΩ +/- 5%

Contactor Coil, M3

160 Ω +/- 10%

Actuator, Scrub head lift

1 - 3 Amps continuous

Actuator, Side brush lift

1 - 3 Amps continuous, Internal limit switches

Actuator, Rear squeegee lift

2 - 4 Amps continuous, Internal limit switches

Motor, Vacuum Fan(s)

14 - 20 Amps continuous (15 - 16 Amps average)

Motor, Propelling
(5.4 mph transport speed)

38 - 64 Amps continuous

Motors, Main cylindrical brush
Down pressure #1 12 - 18 Amps/Motor (default 13 Amps)
Down pressure #2 18 - 28 Amps/Motor (default 26 Amps)
Down pressure #3 28 - 35 Amps/Motor (default 35 Amps)
Motors, Main disk brush
Down pressure #1 12 - 18 Amps/Motor (default 14 Amps)
Down pressure #2 18 - 28 Amps/Motor (default 25 Amps)
Down pressure #3 28 - 35 Amps/Motor (default 35 Amps)
Motor, Side Sweep Brush

5 - 8 Amps

Motor, Side Scrub Brush

12-40 Amps

Pump, ec-H2O

4 - 6 Amps

Pump, Spray Nozzle

2 - 3 Amps

Pump, Side Brush

0.5 - 2 Amps

Pump, Detergent Metering/
Severe Environment

0.5 - 1.5 Amps

Valve, ec-H2O Side Brush

129 Ω +/- 5%

Valve, Conventional Side Brush

108 Ω +/- 10%

Valve, Conventional Main Brush

108 Ω +/- 10%

Valve, Autofill

218 Ω +/- 10%

2-20

T17 Service Information 9020167 (6-14)

MAINTENANCE

SECTION
Contents

3

Page

Maintenance
Maintenance Chart. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-3
yellow touch points.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-5
	Lubrication.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-5
	Batteries.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-6
	Circuit Breakers, fuses, and relays.  .  . 3-11
	Electric Motors .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-12
Scrub Brushes. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-13
	Pre-Sweep brushes.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-18
Squeegee blades.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-21
Skirts and Seals. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-32
	Belts	. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-34
brakes	
.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-34
Tires		 .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-34
	Pushing, Towing, and Transporting
		the Machine.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-35
Machine jacking .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-38
ec-h2o module flush procedure.  .  .  .  .  . 3-39
Storage Information. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-41
	Freeze Protection.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3-41
	Preparing the Machine for
		 operation after storage .  .  .  .  .  .  .  .  .  .  . 3-43
	Priming the ec-H2O System.  .  .  .  .  .  .  .  .  .  .  .  . 3-44

T17 Service Information 9020167 (6-14)

3-1

MAINTENANCE
MAINTENANCE
5

8
4

3

21
20

15

1

6

10

2
1

14

23

22
17
11
19
13
7

12

9

12

16

18

356389 356290

3-2

T17 Service Information 9020167 (6-14)

MAINTENANCE
MAINTENANCE CHART
The table below indicates the Person Responsible
for each procedure.
O = Operator.
T = Trained Personnel.
Person
Interval Resp.
O
Daily

Weekly
50
Hours

Key
Description
1
Side and rear squeegees

O

2

Main brushes

O

3

Recovery tank

O
O

4
3

Solution tank
ES machines only:
Recovery tank

O

4

O

5

O

6

O

20

O

20

O

13

O

16

O

17

T
T
O
O

8
1
16,
17
2

ES machines only:
Solution tank
Vacuum fan inlet filter,
screen, and debris tray
Cylindrical brushes only:
Debris tray
Sweeping or scrubbing
side brush (Option)
Scrubbing side brush
squeegee (Option)
Pre−Sweep side brushes
(Option)
Pre−Sweep main bush
(Option)
Pre−Sweep debris
hopper (Option)
Battery cells
Side and rear squeegees
Pre−Sweep skirts and
seals (Option)
Main brushes (cylindrical)

O

14

Scrub head skirts (disk)

Procedure
Check for damage and
wear. Check deflection.
Check for damage, wear,
and debris
Clean tank, top sensor,
and check cover seal
Check cover seal
Clean filter at bottom of
tank and second lower
sensor.
Clean tank and level
sensor
Clean

No. of
Lubricant/ Service
Fluid
Points
−
4
−

2

−

1

−
−

1
2

−

1

−

1

Clean

−

1

Check for damage, wear,
debris
Check for damage and
wear
Check for damage, wear,
debris
Check for damage, wear,
debris
Clean

−

1 (2)

−

1

−

2

−

1

−

1

Check electrolyte level
Check leveling
Check for damage and
wear
Rotate brushes from front
to rear
Check skirts for damage
and wear

DW
−
−

Multiple
4
4

−

2

−

2

LUBRICANT/FLUID
DW . . . . Distilled water.
SPL . . . Special lubricant, Lubriplate EMB grease (Tennant part number 01433−1)
GL . . . . SAE 90 weight gear lubricant
NOTE: More frequent maintenance intervals may be required in extremely dusty conditions.

T17 Service Information 9020167 (6-14)

3-3

MAINTENANCE
The table below indicates the Person Responsible
for each procedure.
O = Operator.
T = Trained Personnel.
Person
Interval Resp.
100
T
Hours

Key
Description
8
Battery watering system
(option)

T
T

23
8

T

9

T

18

T
T

22
15

Brakes
Battery terminals and
cables
Cylindrical brush drive
belts
Pre−Sweep brush drive
belt
Drive wheel pivot
Steering chain

T

10

Steering gear chain

500
Hours

T
O

11
12

Vacuum fan motors
Tires

1000
Hours

T

21

Sweeping side brush
motors

T

18

Pre−Sweep main brush
motor (Option)

T

19

Pre−Sweep side brush
motors (Option)

200
Hours

Procedure
Check hoses and
connections for damage
and wear
Check adjustments
Check and clean
Check for damage and
wear
Check for damage and
wear
Lubricate
Lubricate, check tension,
and check for damage and
wear.
Lubricate, check tension,
and check for damage and
wear.
Check motor brushes
Check for damage and
wear
Check motor brushes
(Check every 100 hours
after initial 1000 hour
check)
Check motor brushes
(Check every 100 hours
after initial 1000 hour
check)
Check motor brushes
(Check every 100 hours
after initial 1000 hour
check)

No. of
Lubricant/ Service
Fluid
Points
−
Multiple
−
−

1
2

−

2

−

1

SPL
GL

1
1

GL

1

−
−

2
3

−

1 (2)

−

1

−

2

LUBRICANT/FLUID
DW . . . . Distilled water.
SPL . . . Special lubricant, Lubriplate EMB grease (Tennant part number 01433−1)
GL . . . . SAE 90 weight gear lubricant
NOTE: More frequent maintenance intervals may be required in extremely dusty conditions.

3-4

T17 Service Information 9020167 (6-14)

MAINTENANCE
YELLOW TOUCH POINTS
This machine features easy to find yellow touch
points for simple service items. No tools are
required to perform these maintenance
operations.

STEERING GEAR CHAIN
The steering gear chain is located directly above
the front tire. Check for damage or wear and
lubricate the steering gear chain after every 200
hours.

DRIVE WHEEL PIVOT
LUBRICATION

The drive wheel pivot is located directly above the
drive wheel. Lubricate the drive wheel pivot after
every 200 hours.

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
STEERING CHAIN
The steering chain is located on the steering
column directly under the control panel. Check for
damage or wear and lubricate the steering chain
after every 200 hours.

T17 Service Information 9020167 (6-14)

3-5

MAINTENANCE
CHECKING CONNECTIONS / CLEANING

BATTERIES
The lifetime of the batteries is limited to the
number of charges the batteries receive. To get
the most life from the batteries, only recharge the
batteries when the battery discharge indicator is
down to the last bar. It is also important to
maintain the proper electrolyte levels during the
life of the battery.

After every 200 hours of use check for loose
battery connections and clean the surface of the
batteries, including terminals and cable clamps,
with a strong solution of baking soda and water.
Replace any worn or damaged wires. Do not
remove battery caps when cleaning batteries.

CHECKING THE ELECTROLYTE LEVEL
NOTE: Do Not check the electrolyte level if the
machine is equipped with the battery watering
system. Proceed to the BATTERY WATERING
SYSTEM (OPTION).
Check the battery electrolyte level weekly for
machines equipped with wet/lead acid batteries.

Objects made of metal can potentially short circuit
the batteries. Keep all metallic objects off the
batteries.

08247

FOR SAFETY: When servicing machine, avoid
contact with battery acid.
The level should be slightly above the battery
plates as shown before charging. Add distilled
water if low. DO NOT OVERFILL. The electrolyte
will expand and may overflow when charging.

Before Charging

After Charging

NOTE: Make sure the battery caps are in place
while charging.

3-6

T17 Service Information 9020167 (6-14)

MAINTENANCE
CHARGING THE BATTERIES
IMPORTANT: Before charging, make sure that
the charger setting is properly set for the
battery type.

6. Connect the charger connector to the battery
cable. The Tennant charger will start
automatically.

NOTE: Use a charger with the proper rating for
the batteries to prevent damage to the batteries or
reduce the battery life.
1. Drive the machine to a flat, dry surface in a
well−ventilated area.
2. Stop the machine and turn off the machine
power.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
3. Lift the battery compartment top cover open
and engage the support.
NOTE: Make sure the batteries have the proper
electrolyte level before charging. See CHECKING
THE ELECTROLYTE LEVEL.
4. Plug the charger AC power supply cord into a
properly grounded outlet.

WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep
sparks and open flame away. Keep
covers open when charging.
NOTE: If there are charger fault codes when the
battery is plugged into the battery charger, the
fault codes will appear at the bottom of the
charger display. Refer to the battery charger
manual for fault code definitions.

5. Disconnect the battery cable from the
machine connector.

T17 Service Information 9020167 (6-14)

3-7

MAINTENANCE
7. Observe the charger display. CHARGE
appears on the display when the battery is
charging. This is the charger default screen.

Charger Display:
A

B

9. Press the charger stop / start / enter button to
return to the charger default screen.

NOTE: If the charger cable must be disconnected
from the battery before they are fully charged,
press the charger stop / start / enter button to
stop charging. Be sure STOP appears on the
display and the red stop charge light is illuminated
before disconnecting the battery charger cable.

C
D
E

A.
B.
C.
D.
E.
F.
G.

G

F

Charge profile number
Charger rating
Battery voltage (Volts)
Battery current (Amperes)
Ampere hours charged
Time charged (hours / minutes / seconds)
Charging phase (Phase 1 / Phase 2 / Phase 3)

8. If necessary, press the navigation buttons to
access additional screens. Press the charger
stop / start / enter button to enter selection.
The charger will return to the default screen in
30 seconds. Refer to manufacturers operator
manual for additional information.

3-8

10. The green charger status indicators will
illuminate from left to the right as the battery
is charging. COMPLETE will appear in the
display, all the green charger status indicators
will be illuminated, and the Tennant charger
will stop charging when the battery is
completely charged.

T17 Service Information 9020167 (6-14)

MAINTENANCE
11. After the charger has turned off, disconnect
the charger connector from the battery cable
connector.

BATTERY CHARGER USB PORT
The battery charger USB port is for maintenance
computer access to the charger by authorized
service personnel only. Do Not plug cell phones
or other unauthorized electronic devices into the
battery charger USB port. Do Not plug anything
into the USB port while the battery is charging.

12. Reconnect the battery connector to the
machine connector.

FOR SAFETY: When servicing machine do not
disconnect the off−board charger’s DC cord
from the machine receptacle when the charger
is operating. Arcing may result. If the charger
must be interrupted during charging,
disconnect the AC power supply cord first.
13. Close the battery compartment top cover.

T17 Service Information 9020167 (6-14)

3-9

MAINTENANCE
BATTERY WATERING SYSTEM (OPTION)
The optional battery watering system provides a
safe and easy way to maintain the proper
electrolyte levels in the batteries.

4. Connect the battery watering system hose to
the battery fill hose.

Check the battery watering system hoses and
connections for damage or wear after every 100
hours.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
1. Lift the battery compartment cover open and
engage the support.
5. Turn on the water supply. The indicator inside
the flow indicator will spin. The indicator stops
spinning when the batteries are full.

2. Fully charge batteries prior to using the
battery watering system. Do not add water to
batteries before charging, the electrolyte level
will expand and may overflow when charging.
See CHARGING THE BATTERIES.
3. Connect the battery watering system hose to
the water supply source.
NOTE: Water quality is important to maintain the
life of the battery. Always use water that meets
battery manufacturer requirements.

6. Disconnect the battery watering system hose
from the water supply hose.
7. Turn off the water supply.
8. After adding water, return the battery watering
system hose to the storage location for future
use.

NOTE: The water supply to the battery water
system must always be 7.57 LPM (2 GPM) or
more. Use the purger to confirm the water supply
pressure. Refer to manufacturer Operator Manual
for additional information.

3-10

T17 Service Information 9020167 (6-14)

MAINTENANCE
CIRCUIT BREAKERS, FUSES, AND RELAYS

Circuit breaker 16 is located inside the optional
light assembly mounted on top of the recovery
tank.

CIRCUIT BREAKERS
Circuit breakers are resettable electrical circuit
protection devices designed to stop the flow of
current in the event of a circuit overload. Once a
circuit breaker is tripped, reset it manually by
pressing the reset button after the breaker has
cooled down.
Circuit breakers 1 through 9 are located under the
operator seat behind the battery compartment
side cover.

If the overload that caused the circuit breaker to
trip is still present, the circuit breaker will continue
to stop current flow until the problem is corrected.
The chart below shows the circuit breakers and
the electrical components they protect.

Circuit breakers 10 through 15 are located behind
the steering shroud access panel.

T17 Service Information 9020167 (6-14)

Circuit
Breaker

Rating

CB1

60 A

Water pickup module

Circuit Protected

CB2

50 A

Pre−Sweep module (Option)

CB3A

20 A

Side brush sweep module
(Option)

CB3B

35 A

Side brush scrub module
(Option)

CB4

2.5 A

Key switch

CB5

2.5 A

Water pick up module
Scrub module

CB6

2.5 A

CB7A

−

CB7B

2.5 A

Pre−Sweep module (Option)

CB7C

2.5 A

Side brush scrub module
(Option)

CB8

2.5 A

ec−H2O module

CB9

2.5 A

ec−H2O pump

CB10

15 A

Spray nozzle (Option)

CB11

15 A

Lights (Option)

CB12

2.5 A

Headlights (Option)

CB13

2.5 A

Strobe light / Flashing light on
over head guard (Option)

CB14

2.5 A

Strobe light / Flashing light on
recovery tank cover (Option)

CB15

15 A

Power steering (Option)

CB16

2.5 A

Backup alarm / light (Option)

Not Used

3-11

MAINTENANCE
FUSES
Fuses are one-time protection devices designed
to stop the flow of current in the event of a circuit
overload. Never substitute higher value fuses than
specified.

ELECTRIC MOTORS
Inspect the carbon brushes on the vacuum fan
motor after every 500 hours of operation. Inspect
the carbon brushes on the sweeping side brush
motors and all Pre−Sweep motors after the first
1000 hours of operation and every 100 hours after
the initial check. Refer to the table below for
carbon brush inspection intervals.
Carbon Brush Inspection

Hours

Side brush motors − Sweeping
(Option)

1000*

Pre−Sweep motors (Option)

1000*

Vacuum motor

The fuses are located in the control box behind
the circuit breaker panel.
Fuse

Rating

Circuit Protected

FU-1

150 A

Propelling

FU-2

100 A

Scrub module power

FU-3

2.0 A

Telemetry module
harness

500

*Inspect carbon brushes every 100 hours after the
initial 1000 hour change.

RELAYS
Relays are electrical switches that open and close
under the control of another electrical circuit.
Relays are able to control an output circuit of
higher power than the input circuit. The relays are
located in the control box behind the circuit
breaker panel.
Refer to the table below for the relays and circuits
controlled.
Relay
M1
M2
M3

3-12

Rating

Circuit Controlled

36 VDC, 200 A Main contactor
36 VDC, 5 A

Backup alarm / light
(Option)

36 VDC, 100 A Auxiliary line
contactor

T17 Service Information 9020167 (6-14)

MAINTENANCE
SCRUB BRUSHES

4. Turn the brush until the spring handles are
visible.

The machine can be equipped with either disk or
cylindrical scrub brushes. Check scrub brushes
daily for wire or string tangled around the brush or
brush drive hub. Also check brushes or pads for
damage and wear.
DISK BRUSHES AND PADS
Replace the brushes or pads when they no longer
clean effectively.
Cleaning pads must be placed on pad drivers
before they are ready to use. The cleaning pad is
held in place with a center disk. Both sides of the
pad can be used for scrubbing. Turn the pad over
to use the other side.
Cleaning pads need to be cleaned immediately
after use with soap and water. Do not wash the
pads with a pressure washer. Hang pads, or lay
pads flat to dry.

5. Squeeze the spring handles and let the brush
drop to the floor. Remove the brush from
under the scrub head.
6. Push the new brush under the scrub head,
align the brush drive socket with the brush
drive hub, and lift the brush up onto the brush
drive hub.

NOTE: Always replace brushes and pads in sets.
Otherwise one brush or pad will be more
aggressive than the other.
REPLACING DISK BRUSHES OR PAD
DRIVERS
1. Raise the scrub head.
2. Turn off the machine.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
3. Open the main brush access door and side
squeegee support door.

7. Ensure the brush is securely mounted on the
brush drive hub.
8. Close and secure the squeegee support door
and close the main brush access door.
9. Repeat procedure for the other brushes.

T17 Service Information 9020167 (6-14)

3-13

MAINTENANCE
REPLACING DISK SCRUB PADS
1. Remove the pad driver from the machine.
2. Squeeze the spring clip together and remove
the center disk from the pad driver.

3. Remove the scrub pad from the pad driver.

4. Flip or replace the scrub pad. Center the
scrub pad on the pad driver and reinstall the
center disk to secure the pad in place on the
pad driver.
5. Reinstall the pad driver onto the machine.

3-14

T17 Service Information 9020167 (6-14)

MAINTENANCE
CYLINDRICAL BRUSHES

3. Remove the idler plate from the scrub head.

Rotate the brushes from front-to-rear after every
50 hours of operation.
Replace the brushes when they no longer clean
effectively.
NOTE: Replace worn brushes in pairs. Scrubbing
with brushes of unequal bristle length will result in
diminished scrubbing performance.
REPLACING CYLINDRICAL SCRUB BRUSHES
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.

4. Remove the brush from the scrub head

1. Open the main brush access door and side
squeegee support door.

2. Lift the idler plate retainer handle and unhook
the retainer ring from the idler plate hook.

5. Position the brush with the double row end
towards the scrub head opening. Guide the
new brush onto the drive hub.
6. If rotating the brushes, always rotate the front
with the back so that they wear evenly. They
may be rotated end for end as well.

A

B

Before

T17 Service Information 9020167 (6-14)

B

A

After

3-15

MAINTENANCE
7. Slide the idler plate up into the scrub head.

8. Secure the idler plate into place with the idler
plate retainer.

NOTE: Do not switch the left or right idler plates
or the brushes will need to be readjusted by
trained personnel.
9. Close and secure the squeegee support door
and close the main brush access door.
10. Repeat for the brush on the other side of the
scrub head.

3-16

T17 Service Information 9020167 (6-14)

MAINTENANCE
SIDE BRUSH(ES) (OPTION)
Check the side brushes daily for wear or damage.
Remove any tangled string or wire from the side
brushes or side brush drive hubs.
REPLACING THE SCRUBBING SIDE BRUSH
Replace the brush when it no longer cleans
effectively.
1. Raise the side brush assembly and turn off
the machine.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.

REPLACING THE SWEEPING SIDE
BRUSH(ES)
Replace the brushes when they no longer clean
effectively.
1. Raise the side brush assembly and turn off
the machine.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
2. Reach into the center of the brush and
remove the cotter pin holding the brush and
the retaining washer to the hub.

2. Squeeze the spring handles and let the side
brush drop to the floor.

3. Remove the side brush and retaining washer
from under the side brush assembly.

3. Remove the side brush from under the side
brush assembly.

4. Place the new side brush underneath the side
brush assembly and lift the side brush up onto
the side brush hub until the brush locks onto
the hub.

T17 Service Information 9020167 (6-14)

3-17

MAINTENANCE
4. Place the new side brush underneath the side
brush and align the channel in the side brush
receptacle with the two brush locks on the
side brush hub.

3. Turn off the machine.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
4. Reach into the center of the brush and
remove the cotter pin holding the brush and
the retaining washer to the hub.

5. Lift the side brush up onto the side brush hub,
hold the side brush onto the hub, install the
retaining washer onto the hub, and reinstall
the cotter pin into the hub.
PRE−SWEEP BRUSHES (OPTIONAL)

5. Remove the side brush and retaining washer
from under the Pre−Sweep assembly.

The Pre−Sweep assembly is equipped with disk
side brushes and a cylindrical main brush. Check
the brushes daily for wire or string tangled around
the brush or brush drive hub. Check the brushes
daily for damage and wear.
REPLACING THE PRE−SWEEP SIDE
BRUSHES
Replace the brushes when they no longer clean
effectively.
1. Turn on the machine.
2. Press the Pre−Sweep switch to raise the
Pre−Sweep assembly and stop sweeping.

3-18

6. Place the new side brush underneath the side
brush and align the channel in the side brush
receptacle with the two brush locks on the
side brush hub.

T17 Service Information 9020167 (6-14)

MAINTENANCE
7. Lift the side brush up onto the side brush hub,
hold the side brush onto the hub, install the
retaining washer onto the hub, and reinstall
the cotter pin into the hub.

4. Loosen and remove the left brush arm knob.

REPLACING THE PRE−SWEEP CYLINDRICAL
BRUSH
Replace the brush when it no longer cleans
effectively.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
1. Turn off the machine.
2. Loosen both Pre−Sweep cover latches.

3. Lift the Pre−Sweep cover, lock the cover
open, and engage the Pre−Sweep cover
support.

T17 Service Information 9020167 (6-14)

5. Remove the left brush arm.

6. Remove the three knobs holding the
Pre−Sweep side skirt and side skirt plate to
the Pre−Sweep assembly.

3-19

MAINTENANCE
7. Remove the side skirt plate and side skirt
from the Pre−Sweep assembly.

8. Remove the cylindrical brush and replace with
a new brush.

9. Guide the slotted end of the new brush onto
the drive hub.
10.Reinstall the side skirt, side skirt plate, and
left brush arm.

3-20

T17 Service Information 9020167 (6-14)

MAINTENANCE
SQUEEGEE BLADES

3. Loosen both squeegee mounting handles.

Check the squeegee blades for damage and wear
daily. When the blades become worn, rotate the
blades end−for−end or top−to−bottom to a new
wiping edge. Replace blades when all edges are
worn.
Check the deflection of the squeegee blades daily
or when scrubbing a different type of surface.
Check the leveling of the rear squeegee every 50
hours of operation.
REPLACING (OR ROTATING) THE REAR
SQUEEGEE BLADES
1. If necessary, lower the Rear bumper door /
step.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
2. Disconnect the vacuum hose from the rear
squeegee assembly.

4. Pull the rear squeegee assembly from the
machine.

T17 Service Information 9020167 (6-14)

3-21

MAINTENANCE
5. Loosen the rear retainer latch and remove the
latch and the retainer from the squeegee
assembly.

7. Place the rotated or new squeegee blade onto
the rear squeegee assembly. Be sure the
squeegee is securely attached on each tab on
the rear squeegee assembly.

8. Insert the hinge end of the retainer into the
hooks in the rear squeegee assembly.

6. Remove the rear squeegee from the
squeegee assembly.

3-22

T17 Service Information 9020167 (6-14)

MAINTENANCE
9. Install the retainer along the rest of the
squeegee assembly, align the tabs on the
squeegee assembly into the slots in the
retainer, and tighten the latch onto the other
end of the squeegee assembly.

11. Loosen the front retainer latch and remove
the latch and the retainer from the squeegee
assembly.

12. Remove the front squeegee from the
squeegee assembly

10. Turn the rear squeegee assembly over to
access the front of the squeegee assembly.

T17 Service Information 9020167 (6-14)

3-23

MAINTENANCE
13. Install the rotated or new squeegee blade
onto the squeegee assembly. Be sure the
holes in the squeegee blade are hooked onto
the tabs.

14. Install the front squeegee retainer onto the
rear squeegee assembly.

15. Reinstall the rear squeegee assembly onto
the machine
16. Raise the Rear bumper door / step if it was
lowered to access the rear squeegee
assembly.

3-24

T17 Service Information 9020167 (6-14)

MAINTENANCE
LEVELING THE REAR SQUEEGEE
Leveling the squeegee ensures the entire length
of the squeegee blade is in even contact with the
surface being scrubbed. Perform this adjustment
on an even and level floor.
1. Lower the squeegee and drive the machine
several meters (feet) forward and slowly bring
the machine to a stop.

6. Turn the squeegee tilt adjust knob
counter-clockwise to decrease the deflection
at the ends of the squeegee blade.
Turn the squeegee tilt adjust knob clockwise
to increase the deflection at the ends of the
squeegee blade.

2. Check the squeegee deflection over the full
length of the squeegee blade.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
3. Lower the Rear bumper door / step.
4. If the deflection is not the same over the full
length of the blade, use the tilt adjust knob to
make adjustments.
DO NOT disconnect the vacuum hose from
the squeegee frame when leveling squeegee.
5. To adjust the squeegee leveling, loosen the tilt
lock knob.

7. Tighten the tilt lock knob.
8. Drive the machine forward with the squeegee
down to recheck the squeegee blade
deflection if adjustments were made.
9. Readjust the squeegee blade deflection if
necessary.
10. Raise the Rear bumper door / step when
finished leveling the rear squeegee.

T17 Service Information 9020167 (6-14)

3-25

MAINTENANCE
11. Install the inner frame over the squeegee and
onto the outer frame. Be sure the inner frame
is tight against the top of the outer frame.

12. Slide both retainers into the squeegee
assembly.

14. Insert the hinge end of the retainer into the
hooks in the inner frame.

15. Install the retainer along the rest of the
squeegee assembly and fasten the latch onto
the other end of the squeegee assembly.

13. Place the rotated or new squeegee blade onto
the inner frame. Be sure the squeegee is
securely attached on each tab on the inner
frame.

3-26

T17 Service Information 9020167 (6-14)

MAINTENANCE
LEVELING THE REAR SQUEEGEE
Leveling the squeegee ensures the entire length
of the squeegee blade is in even contact with the
surface being scrubbed. Perform this adjustment
on an even and level floor.
1. Lower the squeegee and drive the machine
several meters (feet) forward and slowly bring
the machine to a stop.

5. Turn the squeegee tilt adjust knob
counter-clockwise to decrease the deflection
at the ends of the squeegee blade.
Turn the squeegee tilt adjust knob clockwise
to increase the deflection at the ends of the
squeegee blade.

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and remove key.
2. Check the squeegee deflection over the full
length of the squeegee blade.
3. If the deflection is not the same over the full
length of the blade, use the tilt adjust knob to
make adjustments.
DO NOT disconnect the vacuum hose from
the squeegee frame when leveling squeegee.
4. To adjust the squeegee leveling, loosen the tilt
lock knob.

6. Tighten the tilt lock knob.
7. Drive the machine forward with the squeegee
down to recheck the squeegee blade
deflection if adjustments were made.
8. Readjust the squeegee blade deflection if
necessary.

T17 Service Information 9020167 (6-14)

3-27

MAINTENANCE
ADJUSTING THE REAR SQUEEGEE BLADE
DEFLECTION
Deflection is the amount of curl the overall
squeegee blade has when the machine moves
forward. The best deflection is when the
squeegee wipes the floor dry with a minimal
amount of deflection.

4. To adjust the overall squeegee blade
deflection, loosen the lock knobs on both
sides of the machine.

NOTE: Make sure the squeegee is level before
adjusting the deflection. See LEVELING THE
REAR SQUEEGEE.
1. Lower the squeegee and drive the machine
several meters (feet) forward and slowly bring
the machine to a stop.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
2. Look at the amount of deflection or “curl” of
the squeegee blade. The correct amount of
deflection is 12 mm (0.50 in) for scrubbing
smooth floors and 15 mm (0.62 in) for rough
floors.

5. Turn the adjustment knobs clockwise to
increase deflection or counterclockwise to
decrease deflection.

6. Retighten the lock knobs.
7. Drive the machine forward again to recheck
the squeegee blade deflection.
3. Lower the Rear bumper door / step.

8. Readjust the squeegee blade deflection if
necessary.
9. Raise the Rear bumper door / step when
finished adjusting the rear squeegee blade
deflection.

3-28

T17 Service Information 9020167 (6-14)

MAINTENANCE
REPLACING OR ROTATING THE SIDE
SQUEEGEE BLADES

5. Remove the squeegee blade from the side
squeegee assembly.

1. If necessary, raise the scrub head.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
2. Open the main brush access door and side
squeegee support door.

6. Install the rotated or new rear squeegee blade
onto the side squeegee assembly.
7. Hook the retaining band onto the retaining
band retainer tab on the side squeegee
assembly.

3. Unhook the retaining band latch from the side
squeegee assembly.

8. Fasten the retaining band latch onto the side
squeegee assembly.

4. Remove the retaining band from the side
squeegee assembly.

9. Close and secure the squeegee support door
and close the main brush access door.
10. Repeat for the side squeegee on the other
side of the scrub head.

T17 Service Information 9020167 (6-14)

3-29

MAINTENANCE
REPLACING OR ROTATING THE SIDE
BRUSH SQUEEGEE BLADES (OPTION)

3. Remove the retaining band, squeegee blades,
and spacer from the squeegee frame.

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
Check the side brush squeegee blades for
damage and wear daily. Replace or rotate a blade
if the leading edge is torn or worn half-way
through the thickness of the blade.
1. Loosen the side brush squeegee assembly
handle and remove the squeegee assembly
from the machine.

NOTE: Observe which squeegee slots were
installed on the squeegee frame before removing
the squeegee.

2. Loosen the retaining band latch.

NOTE: The squeegee blade(s) have slots for
adjusting the squeegee blade deflection. Install /
reinstall squeegees so the deflection is
approximately 12 mm (0.50 in) for smooth floors
and 15 mm (0.62 in) for rough floors.

3-30

T17 Service Information 9020167 (6-14)

MAINTENANCE
4. Install the rotated / new squeegee blades,
spacer, and retaining band onto the side
brush assembly. Be sure the holes in the
squeegee blade are hooked onto the tabs.

5. Fasten the side brush retaining band latch.

6. Reinstall the side brush squeegee assembly
onto the side brush assembly.

T17 Service Information 9020167 (6-14)

3-31

MAINTENANCE
SKIRTS AND SEALS
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.

SCRUB HEAD SKIRTS (DISK SCRUB HEADS
ONLY)
Check the scrub head skirts for damage and wear
after every 50 hours of operation.

RECOVERY TANK SEAL
Check the recovery tank cover seal for damage
and wear daily.

SOLUTION TANK SEAL
Check the solution tank cover seal for damage
and wear daily.

3-32

T17 Service Information 9020167 (6-14)

MAINTENANCE
PRE−SWEEP SKIRTS (OPTION)
The Pre−Sweep skirts are located around the
Pre−Sweep main brush.

Check the skirts for damage and wear after every
50 hours of operation.

T17 Service Information 9020167 (6-14)

3-33

MAINTENANCE
BELTS

BRAKES

CYLINDRICAL BRUSH DRIVE BELTS

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
The brush drive belts are located on the
cylindrical brush scrub head. Check the belts for
damage and wear after every 200 hours of
operation.

The foot brake and the parking brake operate the
linkage that controls the brakes on the rear
wheels.
The foot pedal should not travel more than 25 mm
(1in) to engage the brake. Check the brake
adjustment after every 200 hours of operation.

PRE−SWEEP BRUSH DRIVE BELT (OPTION)
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
The Pre−Sweep brush drive belt is located inside
the Pre−Sweep assembly on the right side of the
cylindrical brush. Check the belt for damage and
wear after every 200 hours of operation.

3-34

TIRES
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
The machine has three solid rubber tires: one in
front, and two in the rear of the machine. Check
tires for damage and wear after every 500 hours
of operation.

T17 Service Information 9020167 (6-14)

MAINTENANCE
PUSHING, TOWING, AND TRANSPORTING
THE MACHINE
PUSHING OR TOWING THE MACHINE
FOR SAFETY: When servicing the machine,
do not push or tow the machine without an
operator in the seat controlling the machine.
If the machine becomes disabled, it can be
pushed from the front or rear, but it can only be
towed from the front.
Only push or tow the machine for a very short
distance and do not exceed 3.2 kp/h (2 mph). It is
NOT intended to be pushed or towed for a long
distance or at a high speed.
ATTENTION! Do not push or tow machine for
a long distance or damage may occur to the
propelling system.

TRANSPORTING THE MACHINE
1. Raise the squeegee, scrub head, and
brushes.
FOR SAFETY: When loading/unloading
machine onto/off truck or trailer, drain tanks
before loading machine.
2. Position the machine at the loading edge of
the truck or trailer.
3. If the loading surface is not horizontal or is
higher than 380 mm (15 in) from the ground,
use a winch to load machine.
If the loading surface is horizontal AND is
380 mm (15 in) or less from the ground, the
machine may be driven onto the truck or
trailer.

FOR SAFETY: When loading machine onto
truck or trailer, use winch. Do not drive the
machine onto the truck or trailer unless the
loading surface is horizontal AND is 380 mm
(15 in) or less from the ground.

T17 Service Information 9020167 (6-14)

3-35

MAINTENANCE
4. To winch the machine onto the truck or trailer,
attach the winching chains to the stabilizer
legs.

Machines with optional scrubbing side
brush only: Connect one winching chain to
the step located on top the scrubbing side
brush assembly and the other to the stabilizer
located on the other side of the machine.

8. Connect the tie−down straps to the right and
left stabilizers in front of the machine.

Machines with optional scrubbing side
brush only: Connect one tie down strap to
the step located on top the scrubbing side
brush assembly and the other to the stabilizer
located on the other side of the machine.

5. Position the machine as close to the front of
the trailer or truck as possible. If the machine
starts to veer off the center line of the truck or
trailer, stop and turn the steering wheel to
center the machine.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
6. Place a block behind each wheel to prevent
the machine from rolling.
7. Lower the scrub head and turn off machine.
FOR SAFETY: When loading/unloading
machine onto/off truck or trailer, lower scrub
head and squeegee before tying down
machine.

3-36

T17 Service Information 9020167 (6-14)

MAINTENANCE
9. Connect the tie−down straps to the holes in
the rear jacking brackets at the rear of the
machine.

10.If the loading surface is not horizontal or is
higher than 380 mm (15 in) from the ground,
use a winch to unload machine.
If the loading surface is horizontal AND is
380 mm (15 in) or less from the ground, the
machine may be driven off the truck or trailer.
FOR SAFETY: When unloading machine off
truck or trailer, use winch. Do not drive the
machine off the truck or trailer unless the
loading surface is horizontal AND 380 mm
(15 in) or less from the ground.

T17 Service Information 9020167 (6-14)

3-37

MAINTENANCE
MACHINE JACKING

Jacking point location at the rear of all machines.

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, set parking brake, and remove key.
Empty the recovery and solution tanks before
jacking the machine.
Jacking point location at the front of all machines.

FOR SAFETY: When servicing machine, block
machine tires before jacking machine up. Use
a hoist or jack that will support the weight of
the machine. Jack machine up at designated
locations only. Support machine with jack
stands.

Jacking point locations at the front of machines
equipped with the Pre−Sweep option.

3-38

T17 Service Information 9020167 (6-14)

MAINTENANCE
ec−H2O MODULE FLUSH PROCEDURE

4. Connect the drain hose to the ec−H2O outlet
hose.

This procedure is only required when the red
indicator light begins to flash and there is an
audible alarm.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and set parking brake.
1. Open the right shroud to access the ec−H2O
assembly.
2. Press the connector button to disconnect the
outlet hose from the ec−H2O manifold.
5. Place the drain hose into a empty container.

NOTE: Look for arrows on the hose near where
the hose is coming from the bottom of the
ec−H2O assembly to determine which hose is the
outlet hose.

6. Pour 2 gallons (7.6 liters) of white or rice
vinegar into the solution tank.

3. Remove the drain hose from the ec−H2O
compartment.

T17 Service Information 9020167 (6-14)

3-39

MAINTENANCE
7. Start the machine.
8. Press and release the ec−H2O module flush
switch to start the flush cycle.

NOTE: The module will automatically shut off
when the flush cycle is complete (approximately 7
minutes). The module must run the full 7−minute
cycle in order to reset the system indicator light
and alarm.
9. Pour 2 gallons (7.6 liters) of cool clean water
into the solution tank.
10. Press and release the flush switch to rinse
any remaining vinegar from the module. After
1−2 minutes, press the flush switch to turn off
the module.
11. Disconnect the drain hose from the ec−H2O
manifold hose.
12. Reconnect the outlet hose to the ec−H2O
manifold hose.
13. Return the drain hose to storage location in
the ec−H2O compartment.
14. Close the right shroud.

3-40

T17 Service Information 9020167 (6-14)

MAINTENANCE
STORAGE INFORMATION
The following steps should be taken when storing
the machine for extended periods of time.

3. Machines equipped with optional detergent
tank only: Pour 1.9 L (1/2 gal) of Propylene
Glycol Based / Recreational Vehicle (RV)
antifreeze into the detergent tank.

1. Charge the batteries before storing machine
to prolong the life of the batteries.
2. Thoroughly drain and rinse the solution and
recovery tanks.
3. Store the machine in a dry area with the
squeegee and scrub head in the up position.
ATTENTION: Do not expose machine to rain,
store indoors.
4. Open the recovery tank cover to promote air
circulation.
5. If storing machine in freezing temperatures,
proceed to FREEZE PROTECTION.

4. Turn on the machine.
5. Press the 1−Step button.

NOTE: To prevent potential machine damage
store machine in a rodent and insect free
environment.
FREEZE PROTECTION
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and set parking brake.
1. Completely drain the solution tank, recovery
tank, and detergent tank.
2. Pour 7.6 L (2 gal) of Propylene Glycol Based /
Recreational Vehicle (RV) antifreeze into the
solution tank.

T17 Service Information 9020167 (6-14)

6. Repeatedly press the Solution increase button
(+) until the solution flow is at the highest
setting.

3-41

MAINTENANCE
7. Machines with severe environment switch
option only: Press the bottom of the severe
environment switch to activate the severe
environment scrubbing system.

8. Machines with scrubbing side brush
option only: Press the side brush switch to
activate the side brush.

9. Drive the machine to circulate the antifreeze
completely through all the systems and clear
out any remaining water.
10.Machines with scrubbing side brush
option only: Press the side brush switch to
turn off the side brush.
11. Stop the machine.
12. Machines with spray nozzle option only:
Operate the wand for a few seconds to
protect the pump.
13. Press the 1−STEP button to turn off the
system.
14. Turn off the machine.
15. The remaining antifreeze does not need to be
drained from the solution tank. recovery tank,
or detergent tank.

3-42

T17 Service Information 9020167 (6-14)

MAINTENANCE
PREPARING THE MACHINE FOR OPERATION
AFTER STORAGE

6. Press the 1−STEP button.

All antifreeze must be completely cleaned from
the scrubbing system before the machine can be
used for scrubbing.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and set parking brake.
1. Completely drain all antifreeze from the
solution tank.
2. Rinse out the solution tank. Refer to
DRAINING AND CLEANING THE SOLUTION
TANK in the OPERATION section for
instructions how to clean the solution tank.

7. Repeatedly press the Solution increase button
(+) until the solution flow is at the highest
setting.

3. Pour 11.4 L (3 gal) of cool clean water into the
solution tank.

4. Machines equipped with optional detergent
tank only: Pour 1.9 L (1/2 gal) of cool clean
water into the detergent tank.

NOTE: The ec−H2O systems on machines
equipped with ec−H2O must be primed before the
machine is ready for operation. See PRIMING
THE ec−H2O SYSTEM for additional instructions.
8. Machines with severe environment switch
option only: Press the bottom of the severe
environment switch to activate the severe
environment scrubbing system.

5. Start the machine

T17 Service Information 9020167 (6-14)

3-43

MAINTENANCE
9. Machines with scrubbing side brush
option only: Press the side brush switch to
activate the side brush.

PRIMING THE ec−H2O SYSTEM
Prime the ec−H2O system if the machine has
been stored for a long period with no water in the
solution tank / ec−H2O system.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, turn off
machine, and set parking brake.
1. Fill the solution tank with clean cool water.
See FILLING THE SOLUTION TANK section
of this manual.

10. Drive the machine until all water and
antifreeze is emptied from the tanks.
11. Machines with scrubbing side brush
option only: Press the side brush switch to
turn off the side brush.
12. Stop the machine.
13. Machines with spray nozzle option only:
Operate the wand for a few seconds to clean
the antifreeze from the pump.
14. Press the 1−STEP button to turn off the
system.

2. Open the right shroud to access the ec−H2O
assembly.
3. Press the connector button to disconnect the
outlet hose from the ec−H2O manifold.

15. Turn off the machine.

3-44

T17 Service Information 9020167 (6-14)

MAINTENANCE
NOTE: Look for arrows on the hose near where
the hose is coming from the bottom of the
ec−H2O assembly to determine which hose is the
outlet hose.

4. Remove the drain hose from the ec−H2O
compartment.
5. Connect the drain hose to the ec−H2O outlet
hose.

7. Start the machine.
8. Press and release the ec−H2O module flush
switch. Allow the system to drain water into
the container for 2 minutes.

9. Press the ec−H2O module flush switch to
shut off the system.
10. Disconnect the drain hose from the ec−H2O
manifold hose.
11. Reconnect the outlet hose to the ec−H2O
manifold hose.
12. Place the drain hose back into the ec−H2O
compartment.
13. Close the right shroud.

6. Place the drain hose into a empty container.

T17 Service Information 9020167 (6-14)

3-45

MAINTENANCE

3-46

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING

SECTION
Contents

4

Page

Troubleshooting
Onboard Diagnostics.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-2
		Self-Test Mode.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-2
		Configuration Mode.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-4
		LCD Warnings. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-6
		LCD Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
		 Propel Diagnostic Mode.  .  .  .  .  .  .  .  .  .  .  . 4-11
		Curtis 1234 Controller
			Diagnostics .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-13
			Diagnostic LED Operation. . . . . . . 4-13
		 	Diagnostic Codes.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-14
		Input Display Mode.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-22
		 Manual Mode .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-24
		CAN (Controller area network)
			 diagnostic mode. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-26
		 MOTORS mode. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-27
		Status led - power
			 steering (option). .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-29
	Subsystem Troubleshooting.  .  .  .  .  .  .  .  .  . 4-30
		Back-Up Alarm/Light .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-30
		lighting. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-32
		Main Scrub Brushes .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-34
		Side Scrub Brush.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-36
		Power-Up .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-38
		Propel. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-40
	Rear Squeegee Lift.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-42
		Scrub Head Lift .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-44
	Side sweep Brushes .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-46
		Side sweep Brush Lift.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-50
	Solution Control, Conventional. 4-52
			 Main brush .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-52
			side brush .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-54
	Solution Control, ecH2O.  .  .  .  .  .  .  .  .  .  . 4-56
	Severe environment - spot
			cleaning.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-58
	ES (Extended scrub)
			Detergent pump. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-60
			water pump.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-62
		Spray Nozzle.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-64
		Vacuum Fan. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4-66

T17 Service Information 9020167 (6-14)

4-1

1. Turn Key Off.

TROUBLESHOOTING
Self Test Mode
Self Test Mode is an onboard diagnostic utility that tests
for open or shorted output circuits. Once completed,
open and/or shorted output pins are displayed on the
LCD (liquid crystal display).

3.	 Press and release the configuration mode button to
scroll through a list of utilities until “SELF TEST”
appears on the LCD.

CONFIG MODE
SELF TEST

1.	Key switch Off. Press and hold the configuration
mode button.

MANUAL MODE
INPUT DISPLAY

STP001

CAN DIAG MODE

1. Turn Key Off.

SELF TEST
PROPEL DIAG MODE
MOTORS MODE

Tennant Quantum
UI ver X.X

4.	 Press and release the brush pressure button to
activate the self test. “SELF-TEST STARTING” will appear
on the LCD.

****SELF-TEST***
STARTING
2.	Key switch On. Release the configuration mode
button when “CONFIG MODE” appears on the LCD.
STP002

CONFIG MODE

Operational Matrix:
Operational Matrix:

4-2

Scrub Head
Down

Enabled
Enabled
Disabled
• 1-STEP Scrub ON
• Fwd/Rev Propel
T17 Service
9020167
• 1-STEP Scrub ON
• 1-STEP Scrub
OFF Information
Scrub
Head(6-14)
• Squeegee/Vac ON • Squeegee/Vac OFF
Down
• Recovery Tank Full

TROUBLESHOOTING
5.	The controller sequentially tests each output circuit
as shown below.

****SELF-TEST***
STARTING

6.	The self test results are displayed in “JX-X,X” format.
JX = Connector, “-X,X” = Control board output pins as
shown on the electrical schematic.
lcd message

lcd message

S1:Self Test “Done” or “”

S36:LSideSweepBr J7-1,2 Open

S2:Front/Left Br J10-1,2,3 Open

S37:LSideSweepBr J7-1,2 Short

S3:Front/Left Br J10-1,2,3 Short

S38:RSideSweepBr J7-3,4 Open

Testing Main
Scrub Brushes...

1

S4:Rear/Right Br J11-4,5,6 Open

S39:RSideSweepBr J7-3,4 Short

S5:Rear/Right Br J11-4,5,6 Short

S40:LSideSwepAct J6-17,18 Open

Testing Side
Scrub Brush...

2

S6:Main Act J4-9,10 Open

S41:LSideSwepAct J6-17,18 Short

S7:Main Act J4-9,10 Short

S42:RSideSwepAct J6-14,16 Open

Testing Vacuum
Fan Motors...

3

S8:Main Sol Vlv J4-17 Open

S43:RSideSwepAct J6-14,16 Short

S9:Main Sol Vlv J4-17 Short

S44:L PreSweepBr J6-15,16 Open

Testing Main
Scrub Actuator...

4

S10:Horn J4-16 Open

S45:L PreSweepBr J6-15,16 Short
S46:M PreSweepBr J7-3,4 Open

Testing Squeegee
Actuator...

5

S11:Horn J4-16 Short
S12:Alarm J4-15 Open

S47:M PreSweepBr J7-3,4 Short

S13:Alarm J4-15 Short

S48:R PreSweepBr J6-13,14 Open

S14:Vac Fan 1 J7-1,2 Open

S49:R PreSweepBr J6-13,14 Short

S15:Vac Fan 1 J7-1,2 Short

S50:PreSweep Vac J7-1,2 Open

S16:Vac Fan 2 J7-3,4 Open

S51:PreSweep Vac J7-1,2 Short

S17:Vac Fan 2 J7-3,4 Short

S52:PreSweep Act J6-17,18 Open

S18:Det Pump J4-14 Open

S53:PreSweep Act J6-17,18 Short

S19:Det Pump J4-14 Short

S58:Ec Pump J4-4 Open

S20:Squeegee Act J6-17,18 Open

S59:Ec Pump J4-4 Short
S60:Ec Side Vlv J4-5 Open

Testing Side
Brush Actuator...
Testing Side
Scrub Actuator...
Testing Main
Valve...
Testing Det
Pump...

6
7
8
9

Testing Side
Pump...

10

S21:Squeegee Act J6-17,18 Short
S22:ES Pump J6-13,14 Open

S61:Ec Side Vlv J4-5 Short

Testing ES
Pump...

11

S23:ES Pump J6-13, 14 Short

S62:Curtis CAN Offline

S24:Sol AF Valve J6-12 Open

S64:Scrub Module Offline

Testing Solution
Autofill Valve...

12

S25:Sol AF Valve J6-12 Short

S65:PickupModule Offline

S26:Rcvr AF Vlv J6-11 Open

S66:ECH2O Module Offline

Testing Recovery
Autofill Valve...

13

S27:Rcvr AF Vlv J6-11 Short

S67:SScrubModule Offline

S28:Side ScrubBr J6-1,2,3 Open

S68:SSweepModule Offline

Testing Horn
Output...

14

S29:Side ScrubBr J6-1,2,3 Short

S69:PSweepModule Offline

Testing Alarm
Output...

15

S31:SideScrubAct J4-7,8 Short

Testing Curtis CAN
Communication...

16

S30:SideScrubAct J4-7,8 Open
S32:Side Pump J4-10 Open
S33:Side Pump J4-10 Short
S34:Side Valve J4-9 Open
S35:Side Valve J4-9 Short

T17 Service Information 9020167 (6-14)

4-3

1. Turn Key Off.

TROUBLESHOOTING
configuration mode
Configuration Mode is an onboard diagnostic utility that
configures controller software to operate optional equipment and to electronically adjust certain output functions.

3.	 Press and release the brush pressure button to enter
	Configuration Mode. “C1:Disk/Cyl” will appear on the
	LCD.

C1:Disk/Cyl

1.	Key switch Off. Press and hold the configuration
mode button.
STP001

1. Turn Key Off.

Tennant Quantum
UI ver X.X

4.	 Press and release the configuration mode button to
scroll through a list of utilities as shown below.
C5:SE/None
0-1-2-3% Mix Ratio

2.	Key switch On. Release the configuration mode
button when “CONFIG MODE” appears on the LCD.
STP002

C1:Disk/Cyl
C2:Ec/ES/None
C3:Set Det Level
1%/2%/3%/None
C4:Autofill/None

CONFIG MODE

C10:Main Press #1
11.0 A
C11:Main Press #2
16.0 A
C12:Main Press #3
22.0 A
C13:Transport Spd
XX.X MPH

C5:SE/None
0-1-2-3% Mix Ratio
C6:SE Short Time
30s (Default)

C14:Scrubbing Spd
XX.X MPH

C7:SE Long Time
3600s (Default)
C8:Option
Side Scrub
R Side Sweep
R/L Side Sweep
Pre-Sweep/None

C16:Propel H.M.

C9:Reset Press.?

C19:Diag Mode
Disabled/Enabled

C15:Main Water
Low/Med/High

C17:Scrub H.M.
XXXX.X Hr
C18:Reset

Operational Matrix:
Operational Matrix:

4-4

Scrub Head
Down

Enabled
• 1-STEP Scrub ON
• Fwd/Rev Propel

Enabled
Disabled
• 1-STEP Scrub ON
• 1-STEP Scrub OFF
Scrub Head
T17 Service
9020167 (6-14)
• Squeegee/Vac ON • Squeegee/Vac
OFF Information Down
• Recovery Tank Full
• Low Batt Voltage

TROUBLESHOOTING
5.	Use the table below for further description of each
	Configuration Mode utility.
LCD Text

Description

C1:Disk/Cyl

Configure scrub head type

C2:Ec/ES/None

Configure ec-H2O, ES or none

C3:Set Det Level

Set ratio of detergent for ES option to 1%, 2%, or 3%

C4:Autofill/None

Enable Autofill feature (w/ ES
option)

C5:SE/None

Enable Severe Environment feature for machines equipped with
ec-H2O

C6:SE Short Time

Set Severe Environment Short
On-Time. Default 30 seconds.

C7:SE Long Time

Set Severe Environment Long OnTime. Default 3600 seconds.

C8:Option

Configure unit for side scrub
brush, side sweep brush, dual
side sweep brush, or Pre-Sweep
side brushes.

C9:Reset Press.?

Reset down pressures to factory
default settings.

* C9:Reset Press.? mode. Press the brush pressure button
after “No” changes to “Yes” following step 7. This completes
the reset process.
** C10, C11, and C12 Main Press (Main Brush Pressure) adjustments set the maximum brush motor amp draw for each
down pressure setting; 1 LED, 2 LEDs, or 3 LEDs.
6.	 Press and release the brush pressure button to enable
the change. A “<” symbol will appear on the bottom
line of the LCD indicating the configuration utility is
now enabled.

C5:SE/None
0-1-2-3% Mix Ratio

C10:Main Press #1** Set max down pressure #1
(12-18 Amps, Default 14D, 13C)
C11:Main Press #2** Set max down pressure #2
(18-28 Amps, Default 25D, 26C)
C12:Main Press #3** Set max down pressure #3
(28-35 Amps, Default 35 Amps)
C13:Transport Spd

Adjust maximum forward transport speed.

C14:Scrub Spd

Adjust maximum scrubbing
speed.

C15:Main Water

Set conventional solution flow
range; Low, Med, or High

C16:Propel H.M.

View propel hourmeter.

C17:Scrub H.M.

View scrub hourmeter.

C18:Reset

Resets scrub head type, solution
configuration, down pressure
targets, flow range, side option,
travel speeds, autofill option, SE
option to default settings.

C19:Diag Mode
Disabled/Enabled

Enable techncial data during
normal machine operation. Scroll
through LCD data by pressing the
contrast or configuration mode
buttons during normal operation. Cycle key 1x to enable, 2x to
disable.

T17 Service Information 9020167 (6-14)

7.	 Press and release the contrast or configuration 		
mode buttons to change settings. Turn key Off 		
to save selection.
CMP004

C5:SE/None
0-1-2-3% Mix Ratio

4-5

TROUBLESHOOTING
t17 lcd warning messages
lcd
warning
code

message

description

set/clear

W1

W1:Batt Low

W2

W2:Unavailable

W3

W3:No [Side/Sweep]
Config

W4

W4:Not Active

W5

W5:Solution Off

W6

W6:Brake On

W7

W7:Side Br. Wrn [##]

BLDC Side Scrub Motor
Circuit Warning: VF, OT,
HW, Com, or MF

SET - VF: Voltage Fault - Complete SUN-I/O testing
on side scrub module
SET - OT: Over Temperature - Side scrub module
overheat.
SET - HW: Hardware Fault - System overcurrent
SET - Com: Communications Fault - Interface
module has lost communications with side scrub
module. Complete SUN-I/O testing on the side
scrub module.
SET - MF: Motor Fault - Locked rotor or mechanical
problem with the motor or brush drive mechanism.
CLEAR: Correct warning condition and cycle key
switch.

W8

W8:LSide Br Short

Left side sweep motor
shorted

SET: Left side sweep brush motor circuit shorted
CLEAR: Correct warning condition.

W9

W9:RSide Br Short

W10

W10:LSweepBrShrt

Left Pre-Sweep motor
shorted

SET: Left side pre-sweep brush motor circuit shorted
CLEAR: Correct warning condition.

W11

W11:MSweepBrShrt

Middle Pre-Sweep motor shorted

SET: Main pre-sweep brush motor circuit shorted
CLEAR: Correct warning condition.

W12

W12:RSweepBrShrt

Right Pre-Sweep motor
shorted

SET: Right side pre-sweep brush motor circuit
shorted
CLEAR: Correct warning condition.

W13

W13:Open [Frnt/Left]
Br

Open front/left motor

SET: [Front/Left] main brush motor circuit open
CLEAR: Correct warning condition.

W14

W14:Open [Rear/Rght]
Br

Open right/rear motor

SET: [Rear/Right] main brush motor circuit open
CLEAR: Correct warning condition.

4-6

Low Battery

SET: Battery discharge threshold of 30-32 Volts at KSI
terminal or 32-33 Volts at batteries.
CLEAR: Charge batteries to BDI reset threshold of 37
Volts at KSI terminal or 38 Volts at batteries.

No optional solution
enabled

SET: Operator selects a solution technology that
is not configured on the machine.
CLEAR: Release button.

No side option enabled

SET: Operator selects the side brush when the
side brush is not enabled in configuration mode.
CLEAR: Release button.

Inactive feature

SET: Operator selects a button and the related
function is inactive.
CLEAR: Correct warning condition.

Solution water is off

SET: Solution is OFF during scrub mode for 15
seconds.
CLEAR: Correct warning condition.

Parking brake on

SET: Parking brake engaged (switch closed)
CLEAR: Release parking brake (switch open)

Right side sweep motor SET: Right side sweep brush motor circuit shorted
shorted
CLEAR: Correct warning condition.

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
t17 lcd warning messages
lcd
warning
code

message

description

set/clear

W15

W15:OpenSideBrush

W16

W16:Open LSideBr

Open left side sweep
brush motor

W17

W17:Open RSideBr

Open right side sweep
brush motor

W18

W18:OpenLSweepBr

W19

W19:OpenMSweepBr

W20

W20:OpenRSweepBr

Open right Pre-Sweep
brush motor

W21

W21:SweepVacShrt

Shorted Pre-Sweep
vacuum motor

W22

W22:Open Vac 1

Vacuum fan motor 1 no SET: Scrub vacuum motor circuit #1 open
current
CLEAR: Correct warning condition.

W23

W23:Open Vac 2

Vacuum fan motor 2 no SET: Scrub vacuum motor circuit #2 open
current
CLEAR: Correct warning condition.

W24

W24:OpenSweepVac

W25

W25:SqueegeeStall

Rear squeegee actuator SET: Rear squeegee actuator stall condition.
stalled
CLEAR: Correct warning condition.

W26

W26:SideActStall

Side scrub brush actuator stalled

W27

W27:L Side Stall

Left side sweep actuator SET: Left side sweep brush actuator stall condition.
stalled
CLEAR: Correct warning condition.

W28

W28:R Side Stall

Right side sweep actua- SET: Right side sweep brush actuator stall condition.
CLEAR: Correct warning condition.
tor stalled

W29

W29:Sweep Stall

Pre-Sweep actuator
stalled

SET: Pre-sweep actuator stall condition.
CLEAR: Correct warning condition.

W30

W30:DetPumpShort

Shorted detergent
pump

SET: Detergent pump motor circuit shorted
CLEAR: Correct warning condition.

W31

W31:ES PumpShort

Shorted ES pump

SET: ES pump motor circuit shorted
CLEAR: Correct warning condition.

W32

W32:SidePumpShrt

Shorted side scrub
pump

SET: Side scrub pump motor circuit shorted
CLEAR: Correct warning condition.

W33

W33:Ec Pump Shrt

Shorted ec-H2O pump

SET: ec-H2O pump motor circuit shorted
CLEAR: Correct warning condition.

W34

W34:DetPumpOpen

Open detergent pump

SET: Detergent pump motor circuit open
CLEAR: Correct warning condition.

W35

W35:ES PumpOpen

Open ES pump

W36

W36:SidePumpOpen

Open side scrub pump

Open side scrub brush
motor

Open left Pre-Sweep
brush motor

SET: Side scrub brush motor circuit open
CLEAR: Correct warning condition.
SET: Left side sweep brush motor circuit open
CLEAR: Correct warning condition.
SET: Right side sweep brush motor circuit open
CLEAR: Correct warning condition.
SET: Left side pre-sweep brush motor circuit open
CLEAR: Correct warning condition.

Open middle Pre-Sweep SET: Main pre-sweep brush motor circuit open
brush motor
CLEAR: Correct warning condition.

Open Pre-Sweep
vacuum motor

T17 Service Information 9020167 (6-14)

SET: Right side pre-sweep brush motor circuit open
CLEAR: Correct warning condition.
SET: Pre-sweep vacuum motor circuit shorted
CLEAR: Correct warning condition.

SET: Pre-sweep vacuum motor circuit open
CLEAR: Correct warning condition.

SET: Side scrub brush actuator stall condition.
CLEAR: Correct warning condition.

SET: ES pump motor circuit open
CLEAR: Correct warning condition.
SET: Side scrub pump motor circuit open
CLEAR: Correct warning condition.

4-7

TROUBLESHOOTING
t17 lcd warning messages
lcd
warning
code

message

description

set/clear

W37

W37:Ec Pump Open

Open ec-H2O pump

SET: ec-H2O pump motor circuit open
CLEAR: Correct warning condition.

W38

W38: [Side/Sweep]
Offline

Side module offline

SET: Side module CAN-Bus connectivity, power supply, or faulty side module
CLEAR: Correct warning condition.

W39

W39:EcH2OOffline

ec-H2O module offline

4-8

SET: ec-H2O module CAN-Bus connectivity, power
supply, or faulty ec-H2O module
CLEAR: Correct warning condition.

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
t17 lcd fault messages
lcd
warning
code

message

description

set/clear

F1

F1:Rcv Tank Full

F2

F2:SolTank Empty

Solution Tank Empty

SET: Operator selects a solution technology that
is not configured on the machine.
CLEAR: Release button.

F3

F3:Batt Very Low

Very Low Battery Voltage

SET: Battery discharge threshold of 30.2 Volts
at KSI terminal of PMC or 31.6 Volts at battery.
CLEAR: Charge batteries to BDI reset threshold
of 37 Volts at KSI terminal of PMC or 38.3 Volts
at batteries and cycle key switch.

F4

F4:F/L Br Flt #

BLDC Front/Left Main
Scrub Motor Circuit
Fault: VF, OT, HW, Com,
or MF

SET - VF: Voltage Fault - Complete SUN-I/O testing
on scrub module
SET - OT: Over Temperature - Scrub module overheat.
SET - HW: Hardware Fault - System overcurrent
SET - Com: Communications Fault - Interface module has lost communications with scrub module.
Complete SUN-I/O testing on the scrub module.
SET - MF: Motor Fault - Locked rotor or mechanical
problem with the motor or brush drive mechanism.
CLEAR: Correct warning condition and cycle key
switch.

F5

F5:R/R Br Flt #

BLDC Right/Rear Main
Scrub Motor Circuit
Fault: VF, OT, HW, Com,
or MF

SET - VF: Voltage Fault - Complete SUN-I/O testing
on scrub module
SET - OT: Over Temperature - Scrub module overheat.
SET - HW: Hardware Fault - System overcurrent
SET - Com: Communications Fault - Interface module has lost communications with scrub module.
Complete SUN-I/O testing on the scrub module.
SET - MF: Motor Fault - Locked rotor or mechanical
problem with the motor or brush drive mechanism.
CLEAR: Correct warning condition and cycle key
switch.

F6

F6:Vac 1 Short

Vacuum fan motor #1
circuit is shorted

SET: Vacuum fan motor #1 circuit shorted
CLEAR: Correct fault condition and cycle key switch.

F7

F7:Vac 2 Short

Vacuum fan motor #2
circuit is shorted

SET: Vacuum fan motor #2 circuit shorted
CLEAR: Correct fault condition and cycle key switch.

F8

F8:Check Brushes

Unable to achieve target brush motor current
following down shift(s)
to lowest down pressure level

SET: Scrub module unable to achieve target brush
motor current in desired down pressure setting.
Scrub module attempts to “down shift” to lower
setting(s) until it is unable to achieve target current
in lowest down pressure setting.
CLEAR: Correct fault condition and cycle key switch.

Recovery Tank Full

T17 Service Information 9020167 (6-14)

SET: Battery discharge threshold of 30-32 Volts at KSI
terminal or 32-33 Volts at batteries.
CLEAR: Charge batteries to BDI reset threshold of 37
Volts at KSI terminal or 38 Volts at batteries.

4-9

TROUBLESHOOTING
t17 lcd fault messages
lcd
warning
code

message

F9

F9:Propel Error

F10

F10:Pickup Error

F11

F11:Scrub Error

4-10

description

Propel Controller CANbus Connectivity
Error

Pickup module CAN
Fault

set/clear

SET: Curtis PMC to T17 interface module
CAN-bus connectivity problem or
Curtis PMC power supply problem.
CLEAR: See “Curtis PMC Diagnostics” and cycle key
switch.
SET: CAN connectivity to pickup module failed.
CLEAR: Correct fault condition and cycle
key switch.

Scrub module CAN Fault SET: CAN connectivity to scrub module failed.
CLEAR: Correct fault condition and cycle
key switch.

T17 Service Information 9020167 (6-14)

1. Turn Key Off.

TROUBLESHOOTING
propel diagnostic mode
Propel Diagnostic Mode (Propel Input Mode) is an onboard diagnostic utility that displays Curtis 1234 controller inputs on the instrument panel LCD (Liquid Crystal
Display). The input data is transmitted to the T12 controller through a CAN-bus (Controller Area Network).

3.	 Press and release the configuration mode button to
scroll through a list of utilities until “PROPEL DIAG
MODE” appears on the LCD.

CONFIG MODE
SELF TEST

1.	Key switch Off. Press and hold the configuration
mode button.

MANUAL MODE
INPUT DISPLAY

STP001

CAN DIAG MODE

1. Turn Key Off.

PROPEL DIAG MODE
PROPEL DIAG MODE
MOTORS MODE

Tennant Quantum
UI ver X.X

4.	 Press and release the brush pressure button to
enter Propel Diagnostic Mode. “P1:Curtis Online...” will
appear on the LCD.	

P1: Curtis Online/
Error
2.	Key switch On. Release the configuration mode
button when “CONFIG MODE” appears on the LCD.
STP002

CONFIG MODE

Operational Matrix:
Operational Matrix:
Enabled

Disabled
• 1-STEP Scrub OFF
• Squeegee/Vac ON • Squeegee/Vac OFF
• Recovery Tank Full

T17 Service Information 9020167 (6-14)
• 1-STEP Scrub ON

Scrub Head
Down

Enabled
• 1-STEP S
4-11
Scrub Head • Fwd/Rev
Down

TROUBLESHOOTING
CONFIG MODE

5.	 Press and release the configuration mode button
to scroll through a list of Curtis 1234 controller
inputs.

6.	The table below describes how each input operates.
SELF TEST

T17 Propel Diagnostic Mode
MANUAL MODE
CODE

P1: Curtis Online/
Error

P1:Curtis Online/
Error
P2:Throttle
XXXX.X V

P5:Speed
XXXX.X Mph
P6:Curtis Temp
XXXX.XC XXXX.XF
P7:Motor Temp
XXXX.XC XXXX.XF
P8:PropelCurrent
XXXX.X A

PDM003

DESCRIPTION

P1

INPUT DISPLAY
P1:Curtis Online/
Curtis/T17 controllers CAN-bus
Error
connection status

P2

MODE
P2:ThrottlePROPEL DIAG
Displays
foot throttle commanded
XXXX.X v
voltage (0-5V).

P3

P3:Brake Pedal
On/Off

P4

P4:Direction Fwd/ Displays directional switch input
Rev
(Fwd/Rev).

P5

P5:Speed
XXXX.X Mph

P6

P6:Curtis Temp
Displays Curtis 1234 controller
XXXX.XC XXXX.XF temperature

P7

P7:Motor Temp
Displays drive motor temperature.
XXXX.XC XXXX.XF Thermistor located in drive assembly.

P8

P8:PropelCurrent
XXXX.X A

P3:Brake Pedal
On/Off
P4:Direction Fwd/
Rev

LCD MESSAGE

Displays brake pedal command
(On/Off ).

Displays propel speed from motor
encoder located in drive assembly.

Displays propel motor current.

PDM004

Operational Matrix:
Operational Matrix:
Scrub Head
Down

4-12

Enabled
• 1-STEP Scrub ON
• Fwd/Rev Propel

Enabled
Disabled
• 1-STEP Scrub ON
• 1-STEP Scrub OFF
Scrub Head
• Squeegee/Vac ON • Squeegee/Vac OFF
Down
• Recovery Tank Full
• Low Batt Voltage
• Load Current
T17Fault
Service Information 9020167 (6-14)

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic LED Operation
PMC002

CAN
TERM H

CAN H

35

34
22

23
12

ENC
PHASE
A

33

11

32
21

10
SW7

SW6

20
9

RX

30
19

8

18

+5V

COIL
RETURN

BRK
POT HI

+12V

28
17

6

SW1/ANA1

THR POT
HI

27
16

5

26
15

4

25
14

3

24
13

2

1

DRIVER SW16
3

POT
LOW

SW2/ANA2
SW3

29

7

DRIVER
7

SW4
SW5

31

TX
BRK
WIPER

DRIVER 6

SW8

CAN L

ANA
OUT

ENC
PHASE B

CAN
TERM L

PROP
DRIVER 1 THR
WIPER
DRIVER
KSI
DRIVER 2 DRIVER 4

I/O GND

24
13
1

35
23
12

Status LEDs
Types of LED Display
Display

Status

Neither LED illuminated

Controller is not powered on, has a dead battery,
or is severely damaged.

Yellow LED flashing

Controller is operating normally.

Yellow and red LEDs both on solid

Controller is in Flash program mode.

Red LED on solid

Watchdog failure. Cycle KSI to restart.

Red LED and yellow LED flashing
alternately

Controller has detected a fault. 2-digit code*
flashed by yellow LED identifies the specific fault;
one or two flashes by red LED indicate whether
first or second code digit will follow.

*The red LED flashes once to indicate that the first digit of the code will follow; the yellow LED then flashes the
appropriate number of times for the first digit. The red LED flashes twice to indicate that the second digit of the code
will follow; the yellow LED flashes the appropriate number of times for the second digit.
Example: Battery Undervoltage (Code 23)
RED

YELLOW

RED

YELLOW

(first digit)

(2)

(second digit)

(3)

T17 Service Information 9020167 (6-14)

4-13

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART
CODE

12

FAULT CONDITION
EFFECT OF FAULT

Controller Overcurrent
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

13

Current Sensor Fault
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

14

Precharge Failed
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

POSSIBLE CAUSE

1. External short of phase U, V, or W
motor connections.
2. Motor parameters are mis-tuned.
3. Controller defective.

SET/CLEAR CONDITIONS

Set: Phase current exceeded the
current measurement limit.
Clear: Cycle KSI.

1. Leakage to vehicle frame from phase Set: Controller current sensors have
invalid offset reading.
U, V, or W (short in motor stator).
Clear: Cycle KSI.
2. Controller defective.

1. External load on capacitor bank (B+
connection terminal) that prevents
the capacitor bank from charging.
2. See Monitor menu » Battery:
Capacitor Voltage.

Set: Precharge failed to charge the
capacitor bank to the KSI voltage.
Clear: Cycle interlock input or use VCL
function.

15

Controller Severe Undertemp
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

16

Controller Severe Overtemp 1. See Monitor menu » Controller:
Set: Heatsink temperature above +95˚C.
ShutdownMotor;
Clear: Bring heatsink temperature
Temperature.
ShutdownMainContactor;
2. Controller is operating in an extreme below +95˚C, and cycle interlock or KSI.
ShutdownEMBrake;
environment.
ShutdownThrottle;
3.
Excessive
load on vehicle.
FullBrake;
4. Improper mounting of controller.
ShutdownPump.

17

Severe Undervoltage
Reduced drive torque.

1. See Monitor menu » Controller:
Set: Heatsink temperature below -40˚C.
Temperature.
Clear: Bring heatsink temperature
2. Controller is operating in an extreme above -40˚C, and cycle interlock or KSI.
environment.

1. Battery Menu parameters are
misadjusted.
2. Non-controller system drain on
battery.
3. Battery resistance too high.
4. Battery disconnected while driving.
5. See Monitor menu » Battery:
Capacitor Voltage.
6. Blown B+ fuse or main contactor
did not close.

Set: Capacitor bank voltage dropped
below the severe undervoltage limit
with FET bridge enabled.
Clear: Bring capacitor voltage above
severe undervoltage limit.

PMC003

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor

4-14

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART, continued
CODE

FAULT CONDITION

POSSIBLE CAUSE

EFFECT OF FAULT

Set: Capacitor bank voltage exceeded
the Severe Overvoltage limit with FET
bridge enabled.
Clear: Bring capacitor voltage below
Severe Overvoltage limit, and then
cycle KSI.

18

Severe Overvoltage
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

22

Controller Overtemp Cutback 1. See Monitor menu » Controller:
Temperature.
Reduced drive and brake
torque.
2. Controller is performance-limited
at this temperature.
3. Controller is operating in an extreme
environment.
4. Excessive load on vehicle.
5. Improper mounting of controller.

Set: Heatsink temperature exceeded
85˚C.
Clear: Bring heatsink temperature
below 85˚C.

Undervoltage Cutback

1. Normal operation. Fault shows that
the batteries need recharging.
Controller is performance limited
at this voltage.
2. Battery parameters are misadjusted.
3. Non-controller system drain on battery.
4. Battery resistance too high.
5. Battery disconnected while driving.
6. See Monitor menu » Battery:
Capacitor Voltage.
7. Blown B+ fuse or main contactor
did not close.

Set: Capacitor bank voltage dropped
below the Undervoltage limit with the
FET bridge enabled.
Clear: Bring capacitor voltage above
the Undervoltage limit.

1. Normal operation. Fault shows that
regen braking currents elevated the
battery voltage during regen braking.
Controller is performance limited
at this voltage.
2. Battery parameters are misadjusted.
3. Battery resistance too high for given
regen current.
4. Battery disconnected while regen braking.
5. See Monitor menu » Battery:

Set: Capacitor bank voltage exceeded
the Overvoltage limit with the FET
bridge enabled.
Clear: Bring capacitor voltage below
the Overvoltage limit.

23

Reduced drive torque.

24

Overvoltage Cutback
Reduced brake torque.

1. See Monitor menu » Battery:
Capacitor Voltage.
2. Battery menu parameters are
misadjusted.
3. Battery resistance too high for given
regen current.
4. Battery disconnected while regen braking.

SET/CLEAR CONDITIONS

Capacitor Voltage.

25

26

+5V Supply Failure
None, unless a fault action
is programmed in VCL.

1. External load impedance on the
+5V supply (pin 26) is too low.
2. See Monitor menu » outputs:
5 Volts and Ext Supply Current.

Set: +5V supply (pin 26) outside the
+5V +/-10% range.
Clear: Bring voltage within range.

Digital Out 6 Overcurrent

1. External load impedance on Digital
Output 6 driver (pin 19) is too low.

Set: Digital Output 6 (pin 19) current
exceeded 15 mA.
Clear: Remedy the overcurrent cause
and use the VCL function Set_DigOut()
to turn the driver on again.

Digital Output 6 driver
will not turn on.

PMC004

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor

T17 Service Information 9020167 (6-14)

4-15

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART, continued
CODE

27

FAULT CONDITION

Digital Out 7 Overcurrent
Digital Output 7 driver
will not turn on.

28

Motor Temp Hot Cutback
Reduced drive torque.

29

Motor Temp Sensor Fault
MaxSpeed reduced (LOS,
Limited Operating Strategy),
and motor temperature
cutback disabled.

31

Coil1 Driver Open/Short
ShutdownDriver1.

32

EMBrake Open/Short
ShutdownEMBrake;
ShutdownThrottle;
FullBrake.

33

Coil3 Driver Open/Short
ShutdownDriver3.

34

POSSIBLE CAUSE

EFFECT OF FAULT

Coil4 Driver Open/Short
ShutdownDriver4.

SET/CLEAR CONDITIONS

1. External load impedance on Digital
Output 7 driver (pin 20) is too low.

Set: Digital Output 7 (pin 20) current
exceeded 15 mA.
Clear: Remedy the overcurrent cause
and use the VCL function Set_DigOut()
to turn the driver on again.

1. Motor temperature is at or above
the programmed Temperature Hot
setting, and the requested current
is being cut back.
2. Motor Temperature Control Menu
parameters are mis-tuned.
3. See Monitor menu » Motor:
Temperature and » Inputs: Analog2.
4. If the application doesn’t use a motor thermistor, Temp Compensation
and Temp Cutback should be
programmed Off.

Set: Motor temperature is at or above
the Temperature Hot parameter
setting.
Clear: Bring the motor temperature
within range.

1. Motor thermistor is not connected
properly.
2. If the application does not use a
thermistor, Temp Compensation
and Temp Cutback should be
programmed Off.
3. See Monitor menu » Motor:
Temperature and » Inputs: Analog2.

Set: Motor thermistor input (pin 8) is at
the voltage rail (0 or 10V).
Clear: Bring the motor thermistor input
voltage within range.

1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.

Set: Driver 1 (pin 6) is either open or
shorted.
Clear: Correct open or short, and cycle driver.

1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.

Set: Electromagnetic brake driver (pin 5)
is either open or shorted.
Clear: Correct open or short, and cycle
driver.
Set: Driver 3 (pin 4) is either open or
shorted.
Clear: Correct open or short, and cycle driver.
Set: Driver 4 (pin3) is either open or
shorted.
Clear: Correct open or short, and cycle driver.

1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.
1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor
VCL = Vehicle Control Language

PMC005

4-16

T17 Service Information 9020167 (6-14)

er.

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART, continued
CODE

35

FAULT CONDITION

PD Open/Short
ShutdownPD.

ed.
36

Encoder Fault
ShutdownEMBrake.

37

Motor Open
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

38

Main Contactor Welded
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

d

o B+.

n

n

n

39

41

1. Motor phase is open.
2. Bad crimps or faulty wiring.

Set: Motor phase U, V, or W detected
open.
Clear: Cycle KSI.

1. Main contactor tips are welded
closed.
2. Motor phase U or V is disconnected
or open.
3. An alternate voltage path (such as an

Set: Just prior to the main contactor
closing, the capacitor bank voltage (B+
connection terminal) was loaded for a
short time and the voltage did not
discharge.
Clear: Cycle KSI

external precharge resistor) is
providing a current to the capacitor
bank (B+ connection terminal).

Set: With the main contactor
commanded closed, the capacitor
bank voltage (B+ connection terminal)
did not charge to B+.
Clear: Cycle KSI.

Throttle Wiper High

1. See Monitor menu » Inputs:
Throttle Pot.
2. Throttle pot wiper voltage too high.

Set: Throttle pot wiper (pin 16) voltage
is higher than the high fault threshold
(can be changed with the VCL function
Setup_Pot_Faults())
Clear: Bring throttle pot wiper voltage
below the fault threshold.
Set: Throttle pot wiper (pin 16) voltage
is lower than the low fault threshold
(can be changed with the VCL function
Setup_Pot_Faults()).
Clear: Bring throttle pot wiper voltage
above the fault threshold.

Throttle Wiper Low

Pot2 Wiper High
FullBrake.

PMC006

1. Motor encoder failure.
2. Bad crimps or faulty wiring.
3. See Monitor menu » Motor:
Motor RPM.

Set: Proportional driver (pin 2) is either
open or shorted.
Clear: Correct open or short, and cycle driver.
Set: Motor encoder phase failure
detected.
Clear: Cycle KSI.

1. Main contactor did not close.
2. Main contactor tips are oxidized,
burned, or not making good contact.
3. External load on capacitor bank
(B+ connection terminal) that prevents capacitor bank from charging.
4. Blown B+ fuse.

ShutdownThrottle.

43

1. Open or short on driver load.
2. Dirty connector pins.
3. Bad crimps or faulty wiring.

SET/CLEAR CONDITIONS

Main Contactor Did Not Close
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.
ShutdownThrottle.

42

POSSIBLE CAUSE

EFFECT OF FAULT

1. See Monitor menu » Inputs:
Throttle Pot.
2. Throttle pot wiper voltage too low.

1. See Monitor menu » Inputs:
Pot2 Raw.
2. Pot2 wiper voltage too high.

Set: Pot2 wiper (pin 17) voltage is
higher than the high fault threshold
(can be changed with the VCL function
Setup_Pot_Faults()).
Clear: Bring Pot2 wiper voltage below
the fault threshold.

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor
VCL = Vehicle Control Language

T17 Service Information 9020167 (6-14)

4-17

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART, continued
CODE

44

45

FAULT CONDITION

Pot2 Wiper Low
FullBrake.

1. See Monitor menu » Inputs:
Pot2 Raw.
2. Pot2 wiper voltage too low.

Pot Low Overcurrent

1. See Monitor menu » Outputs:
Pot Low.
2. Combined pot resistance connected
to pot low is too low.

ShutdownThrottle;
FullBrake.

46

EEPROM Failure
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
ShutdownInterlock;
ShutdownDriver1;
ShutdownDriver2;
ShutdownDriver3;
ShutdownDriver4;
ShutdownPD;
FullBrake;
ShutdownPump.

47

HPD/Sequencing Fault
ShutdownThrottle.

49

Parameter Change Fault
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

51

Throttle SRO Fault
ShutdownThrottle/brake.
Shutdown Motor.

52

PMC007

4-18

POSSIBLE CAUSE

EFFECT OF FAULT

HPD Fault
ShutdownThrottle/brake.
Shutdown Motor.

SET/CLEAR CONDITIONS

Set: Pot2 wiper (pin 17) voltage
is lower than the low fault threshold
(can be changed with the VCL function
Setup_Pot_Faults() ).
Clear: Bring Pot2 wiper voltage
above the fault threshold.
Set: Pot low (pin 18) current exceeds
10 mA.
Clear: Clear pot low overcurrent
condition and cycle KSI.
Set: Controller operating system tried
to write to EEPROM memory and failed.
Clear: Download the correct software
(OS) and matching parameter default
settings into the controller and cycle
KSI.

1. Failure to write to EEPROM
memory. This can be caused by
EEPROM memory writes initiated
by VCL, by the CAN bus, by
adjusting parameters with the
programmer, or by loading new
software into the controller.

1. KSI, interlock, direction, and throttle
inputs applied in incorrect sequence.
2. Faulty wiring, crimps, or switches at
KSI, interlock, direction, or throttle
inputs.
3. See Monitor menu » Inputs.

Set: HPD (High Pedal Disable) or
sequencing fault caused by incorrect
sequence of KSI, interlock, direction
and throttle inputs.
Clear: Reapply inputs in correct sequence.

1. This is a safety fault caused by a
change in certain parameter
settings so that the vehicle will not
operate until KSI is cycled.
For example, if a user changes the
Throttle Type this fault will appear
and require cycling KSI before the
vehicle can operate.

Set: Adjustment of a parameter setting
that requires cycling of KSI.
Clear: Cycle KSI

1. Both throttle and brake inputs are Set: Throttle and brake inputs applied at
active at the same time.
the same time.
2. Faulty throttle and/or brake inputs. Clear: Release throttle and brake pedals.
1. Throttle is pressed before key
switch is turned on.
2. Throttle is pressed before operator
presses the seat switch.

Set: Throttle is pressed before key
switch is turned on or throttle is pressed
before operator sits on the seat switch.
Clear: Release throttle and properly
sequence key switch, seat switch and then
throttle.

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor
VCL = Vehicle Control Language

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART, continued
CODE

68

FAULT CONDITION

71

Set: Runtime VCL code error condition.
Clear: Edit VCL application software to
fix this error condition; flash the new
compiled software and matching
parameter defaults; cycle KSI.

External Supply Out of Range
None, unless a fault action
is programmed in VCL.

1. External load on the 5V and 12V
supplies draws either too much or
too little current.
2. Fault Checking Menu parameters
Ext Supply Max and Ext Supply Min
are mis-tuned.
3. See Monitor menu » Outputs:
Ext Supply Current.

Set: The external supply current (combined current used by the 5V supply
[pin 26] and 12V supply [pin 25]) is either
greater than the lower current threshold.
The two thresholds are defined by the
External Supply Max and External Supply
Min parameter settings.
Clear: Bring the external supply current
within range.

OS General

1. Internal controller fault.

Set: Internal controller fault detected.
Clear: Cycle KSI

PDO Timeout
ShutdownInterlock;
CAN NMT State set
to Pre-operational.

1. Time between CAN PDO messages
received exceeded the PDO
Timeout Period.

Stall Detected

1.
2.
3.
4.

Set: Time between CAN PDO messages
received exceeded the PDO Timeout
Period.
Clear: Cycle KSI.
Set: No motor encoder movement
detected.
Clear: Either cycle KSI, or
detect valid motor encoder signals
while operating in LOS mode and
return Throttle Command = 0 and
Motor RPM= 0

ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
ShutdownInterlock;
ShutdownDriver1;
ShutdownDriver2;
ShutdownDriver3;
ShutdownDriver4;
ShutdownPD;
FullBrake;
ShutdownPump.

72

73

ShutdownEMBrake.

PMC008

SET/CLEAR CONDITIONS

1. VCL code encountered a runtime
VCL error.
2. See Monitor menu » Controller:
VCL Error Module and VCL Error.
This error can then be compared to
the runtime VCL module ID and
error code definitions found in the
specific OS system information file.

VCL Run Time Error
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
ShutdownInterlock;
ShutdownDriver1;
ShutdownDriver2;
ShutdownDriver3;
ShutdownDriver4;
ShutdownPD;
FullBrake;
ShutdownPump.

69

POSSIBLE CAUSE

EFFECT OF FAULT

Stalled motor.
Motor encoder failure.
Bad crimps or faulty wiring.
Problems with power supply for
the motor encoder.
5. See Monitor menu » Motor:
Motor RPM.

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor
VCL = Vehicle Control Language
CAN = Controller Area Network

T17 Service Information 9020167 (6-14)

4-19

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART, continued
CODE

FAULT CONDITION
EFFECT OF FAULT

SET/CLEAR CONDITIONS

87

Motor Characterization Fault 1. Motor characterization failed during Set: Motor characterization failed during
characterization process. See Monitor the motor characterization process.
ShutdownMotor;
ShutdownMainContactor;
menu » Controller: Motor
Clear: Correct fault; cycle KSI.
ShutdownEMBrake;
Characterization Error for cause:
ShutdownThrottle;
0=none
FullBrake;
1=encoder signal seen, but step size
ShutdownPump.
not determined; set Encoder Step
Size manually
2=motor temp sensor fault
3=motor temp hot cutback fault
4= controller overtemp cutback fault
5=controller undertemp cutback fault
6=undervoltage cutback fault
7=severe overvoltage fault
8=encoder signal not seen, or one or
both channels missing
9=motor parameters out of characterization range.

88

Motor Phase Fault

1. The motor encoder output signal
does not match the commanded
direction.

Set: Motor phase cables U, V, and W
possibly installed incorrectly.
Clear: Correct faulty cable installation
and cycle KSI.

Motor Type Fault

1. The Motor_Type parameter value
is out of range.

Set: Motor_Type parameter is set to an
illegal value.
Clear: Set Motor_Type to correct value
and cycle KSI.

1. The VCL software in the controller
does not match the OS software in
the controller.

Set: VCL and OS software do not match;
when KSI cycles, a check is made to
verify that they match and a fault is
issued when they do not.
Clear: Download the correct VCL and
OS software into the controller.

1. Vehicle movement sensed after the
EM Brake has been commanded
to set.
2. EM Brake will not hold the motor
from rotating.

Set: After the EM Brake was commanded
to set and time has elapsed to allow the
brake to fully engage, vehicle movement
has been sensed.
Clear: Activate the throttle.

1. Limited Operating Strategy (LOS)
control mode has been activated, as
a result of either an Encoder Fault
(Code 36) or a Stall Detect Fault
(Code 73).
2. Motor encoder failure.
3. Bad crimps or faulty wiring.
4. Vehicle is stalled.

Set: Encoder Fault (Code 36) or Stall
Detect Fault (Code 73) was activated,
and Brake or Interlock has been applied
to activate LOS control mode, allowing
limited motor control.
Clear: Cycle KSI, or if LOS mode was activated by the Stall Fault, clear by ensuring
encoder senses proper operation, Motor
RPM = 0, and Throttle Command = 0.

89

ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

91

VCL/OS Mismatch
ShutdownMotor;
ShutdownMainContactor;

92

EM Brake Failed to Set
ShutdownEMBrake;
ShutdownThrottle.

93

PMC009

4-20

POSSIBLE CAUSE

Encoder LOS (Limited

Operating Strategy)
Enter LOS control mode.

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor	VCL = Vehicle Control Language

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Curtis 1234 Controller Diagnostic Codes, continued
TROUBLESHOOTING CHART, continued
CODE

94

FAULT CONDITION

Emer Rev Timeout
ShutdownEMBrake;
ShutdownThrottle.

98

POSSIBLE CAUSE

EFFECT OF FAULT

Illegal Model Number
ShutdownMotor;
ShutdownMainContactor;
ShutdownEMBrake;
ShutdownThrottle;
FullBrake;
ShutdownPump.

SET/CLEAR CONDITIONS

1. Emergency Reverse was activated
and concluded because the EMR
Timeout timer has expired.
2. The emergency reverse input is
stuck On.

Set: Emergency Reverse was activated
and ran until the EMR Timeout timer
expired.
Clear: Turn the emergency reverse
input Off.

1. Model_Number variable contains
illegal value (not 1234, 1236, 1238,
or 1298).
2. Software and hardware do not match.
3. Controller defective.

Set: Illegal Model_Number variable; when
KSI cycles a check is made to confirm
a legal Model_Number, and a fault is
issued if one is not found.
Clear: Download appropriate software
for your controller model.

Terms:
KSI = Key Switch Interlock
FET = Field-Effect Transistor
EMR = Emergency Reverse

PMC010

T17 Service Information 9020167 (6-14)

4-21

1. Turn Key Off.

TROUBLESHOOTING
input display mode
Input Display Mode is an onboard diagnostic utility that
displays controller input conditions. Input Display Mode
displays LCD text messages for hard-wired switch, sensor,
and touch panel button inputs.

3.	 Press and release the configuration mode button to
scroll through a list of utilities until “INPUT DISPLAY”
appears on the LCD.

CONFIG MODE
SELF TEST

1.	Key switch Off. Press and hold the configuration
mode button.

MANUAL MODE
INPUT DISPLAY

STP001

1. Turn Key Off.

CAN DIAG MODE

INPUT DISPLAY
PROPEL DIAG MODE
MOTORS MODE

Tennant Quantum
UI ver X.X

4.	 Press and release the brush pressure button to enter
	Input Display Mode. “I1:Solution Tank Level:X XV” will
appear on the LCD.	

2.	Key switch On. Release the configuration mode
button when “CONFIG MODE” appears on the LCD.

I1:Solution Tank
Level: X
XV

STP002

CONFIG MODE

Operational Matrix:
Operational Matrix:

4-22

Scrub Head
Down

Enabled
• 1-STEP Scrub ON
• Fwd/Rev Propel

Enabled
Disabled
• 1-STEP Scrub ON
• 1-STEP Scrub
OFF Information
Scrub
Head(6-14)
T17 Service
9020167
• Squeegee/Vac ON • Squeegee/Vac
OFF
Down
• Recovery Tank Full
• Low Batt Voltage

TROUBLESHOOTING
5.	 Press and release the configuration mode button to
scroll through a list of hard-wired switch and sensor
inputs.
I1:Solution Tank
Level: X
XV

I1:Solution Tank
Level: X
XV

I6:Side Sweep
Off/On

I2:Recovery Tank
Not Full/Full

I7:PreSweep
Off/On

I3:Hlf Recvr Tank

I8:Pressure Switch
Open/Closed

I4:Seat Switch:
Seated

I9:Flush Button

I5:Side Scrub
Off/On

I10: Seat Switch
Off/On

IDM003

6.	 Press any other touch panel button to display a
corresponding LCD text message. The message
confirms that the control board received the input.

I19: Horn Button
Pressed

IX:Input Mode
Message Here

I11:One Step
Button Pressed
I13:Down Pressure
Button Pressed

I16:Alt Solution
Button Pressed
I18:Right Water
Button Pressed

I17:Left Water
Button Pressed

I12:Vac Button
Pressed

I14:Inc Solution
Button Pressed

I15:Dec Solution
Button Pressed

T17 Service Information 9020167 (6-14)

4-23

1. Turn Key Off.

TROUBLESHOOTING
3.	 Press and release the configuration mode button to
scroll through a list of utilities until “MANUAL MODE”
appears on the LCD.

Manual mode
Manual Mode is an onboard diagnostic utility that manually activates machine functions and displays output current in “XX.X Amps” format. This mode bypasses interlocking inputs and should be used for diagnostic purposes
only.

CONFIG MODE
SELF TEST

1.	Key switch Off. Press and hold the configuration
mode button.

MANUAL MODE
INPUT DISPLAY

STP001

CAN DIAG MODE

1. Turn Key Off.

MANUAL MODE
PROPEL DIAG MODE
MOTORS MODE

Tennant Quantum
UI ver X.X

4.	 Press and release the brush pressure button to
enter Manual Mode. “M01: Left Brush, 00% XX.XA” will
appear on the LCD.	

M01: Left Brush
00%
XX.XA
2.	Key switch On. Release the configuration mode
button when “CONFIG MODE” appears on the LCD.
STP002

CONFIG MODE

Operational Matrix:
Operational Matrix:

4-24

Scrub Head
Down

Enabled
Enabled
Disabled
• 1-STEP Scrub ON
T17 Service Information 9020167 (6-14)
• 1-STEP Scrub ON
• 1-STEP Scrub OFF
Scrub Head • Fwd/Rev Propel
• Squeegee/Vac ON • Squeegee/Vac OFF
Down
• Recovery Tank Full

TROUBLESHOOTING
5.	 Press and release the configuration mode button
to scroll through a list of output functions. Press the
brush down pressure button to activate the function
displayed on the LCD.
NOTE: “XX.X A” format indicates that the actual amperage value will vary. See the “Specifications” section of this
manual for approximate amp draw values.
NOTE: “R” or “E” in the lower left corner of the LCD indicates
Retracted or Extended actuator position.
NOTE: “XX%” refers to the duty cycle of the ciruit load when
activated.
NOTE: “OK” indicates that the displayed function is not open
or shorted.

M01: Left Brush
XXA XX.XRPM

T17 Service Information 9020167 (6-14)

M01: Left Brush
XXA XX.XRPM

M11: PreSweep Vac

M21: Ec Sparger

M02: Right Brush
XXA XX.XRPM

M12: Side Pump
XV
X%
XA

M22: Ec Cell

M03: Side Brush
XXA XX.XRPM

M13: Ec Pump
XV
X%
XA

M23: Scrub Act
R/E X%
XA

M04: LH Sweep Br

M14: ES Pump
XV
X%
XA

M24:Side Scrub Act
R/E X%
XA

M05: RH Sweep Br

M15:Det Pump
XV
X%
XA

M25: Sweep Act
R/E X%
XA

M06: Left Pre Br

M16: Water Valve
Closed OK XA

M26: R Sweep Act
R/E X%
XA

M07: Mid Pre Br

M17: Side Valve
Closed OK XA

M27:PreSweep Act
XV
X%
XA

M08: Right Pre Br

M18: Ec Valve
Closed OK XA

M28:Squeegee Act
R/E X%
XA

M09: Vac 1
X%
XA

M19: Soltn Valve
Closed OK XA

Exit Manual Mode
Yes

M10: Vac 2
X%
XA

M20: Recvr Valve
Closed OK XA

4-25

1. Turn Key Off.

TROUBLESHOOTING
3.	 Press and release the configuration mode button to
scroll through a list of utilities until “CAN DIAG MODE”
appears on the LCD.

can diagnostic mode
CAN (Controller Area Network) Diagnostic Mode is an onboard diagnostic utility that displays connectivity status
and a software revision date for each module.

CONFIG MODE

1.	Key switch Off. Press and hold the configuration
mode button.

SELF TEST
MANUAL MODE

STP001

INPUT DISPLAY

1. Turn Key Off.

CAN DIAG MODE

CAN DIAG MODE
PROPEL DIAG MODE

Tennant Quantum
UI ver X.X

MOTORS MODE

4.	 Press and release the brush pressure button to
enter CAN Diagnostic Mode. “CD2: Scrub” will
appear on the LCD.	
CD2: Scrub

2.	Key switch On. Release the configuration mode
button when “CONFIG MODE” appears on the LCD.
STP002

CONFIG MODE

Operational Matrix:
Operational Matrix:

4-26

Scrub Head
Down

Enabled
Enabled
Disabled
• 1-STEP Scrub ON
• 1-STEP Scrub ON
• 1-STEP Scrub OFF
Scrub Head • Fwd/Rev Propel
• Squeegee/Vac ON • Squeegee/Vac
OFF Information Down
T17 Service
9020167 (6-14)
• Recovery Tank Full
• Low Batt Voltage
• Load Current Fault

1. Turn Key Off.

TROUBLESHOOTING
5.	 Press and release the configuration mode button
to scroll through a list of CAN modules. Press the
brush down pressure button to select a specific module.

motors mode
Motors Mode is an onboard diagnostic utility that allows
trained service personnel to operate various motors independently for service testing purposes only.
1.	Key switch Off. Press and hold the configuration
mode button.

CD2: Scrub

CD2: Scrub
CD3: Pickup

STP001

1. Turn Key Off.

CD5: Side Scrub
Tennant Quantum
UI ver X.X

CD6: Ec
CD7: Side Sweep
CD8: PreSweep
CD38: Propel

6.	 Press and release the configuration mode button
to scroll through a list of CAN module information.

CD2: Scrub
Online

CD2: Scrub
Online

2.	Key switch On. Release the configuration mode
button when “CONFIG MODE” appears on the LCD.
STP002

CONFIG MODE

CD2: Scrub
Scrub(XX-XX-XX)
CD2: Scrub
Production Boot
CD2: Scrub
Revision X.XX

Operational Matrix:

T17 Service Information 9020167 (6-14)

Scrub Head
Down

Enabled
Disa
• 1-STEP Scrub ON
• 1• Squeegee/Vac
ON
• Sq
4-27
• Re
• Lo
• Lo

TROUBLESHOOTING
3.	 Press and release the configuration mode button to
scroll through a list of utilities until “MOTORS MODE”
appears on the LCD.

CONFIG MODE
SELF TEST

5.	 Press and release the configuration mode button
to scroll through a list of motors. Press the brush
down pressure button to activate the selected
motor(s) and the 1-STEP button to deactivate the
selected motor(s).
NOTE: Once MM1 or MM2 is activated, the down pressure
button can be used to adjust the down pressure setting and
the 1-STEP button must be used to turn the motor(s) off.

MANUAL MODE
INPUT DISPLAY
CAN DIAG MODE

MOTORS MODE
PROPEL DIAG MODE
MOTORS MODE

4.	 Press and release the brush pressure button to enter
Motors Mode. “MM1: Run Main Scrub Brushes” will
appear on the LCD.	

MM1:Run Main
Scrub Brushes

MM1:Run Main
Scrub Brushes
MM2:Run Side
Scrub Brush
MM3:Run
PreSweep
MM4:Run Side
Sweep Brushes
MM5:Run ec-H2O

MM1:Run Main
Scrub Brushes

4-28

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
power steering Status LED (option)
1.	Remove the front panel below the steering wheel to
gain access to the power steering components.
2.	 Observe status LED and use the table below to
determine derate level.
LED

description

Off

Normal Operation, Up to 100% of Maximum
Torque Output
No LED may also indicate a power supply failure
to the power steering control module. Turn
steering wheel completely to one side and hold
pressure for 30 seconds to see if the LED flashes
for derate as listed below:

Purple,
Blinking

Derate Level 1, Up to 75% of Maximum Torque
Output

Yellow,
Blinking

Derate Level 2, Up to 50% of Maximum Torque
Output

Red,
Blinking

Derate Level 3, Up to 20% of Maximum Torque
Output

T17 Service Information 9020167 (6-14)

4-29

TROUBLESHOOTING
Back-Up Alarm/Light ON

FWD
REV

J1-13

J1-4

CAN TERM H

J1-21

CAN TERM L

J1-34

B-

GND
15/GRN

J1-23

J1-35

J1-16

Opt. Reverse
Relay
86

M2A

13/BLK

P1-1

J1-3

DRV3

90/TAN

Cable

E-STOP

13/BLK

17/PUR

DRV4

INTERLOCK

J1-11

FWD/REV Switch

W/WHT

KSI

CAN +

J1-33

V/GRN

36VDC

CAN -

2 REV

11/PNK

J1-22

U/ORN

W

B+

BRAKE IN

6

8
5
4
1

J1-15

J1-10

10/TAN

FWD

DRV2

5/GRN

U
V

Curtis 1234
Controller

RX

(0-5 vdc) THROTTLE

E-Stop Switch (N.C.)

J1-9

DRV1

B

TX

THERMISTOR

A

PROG +

J1-18

J1-1

S-5 Seat Switch (N.O.) 9/WHT

J1-7

B+

I/O GND

J1-29

J1-31

Cable

PHASE A

J1-28

+5V

PHASE B

8/GRY

J1-25

J1-26

J1-32

Switched B+
From Buss Bar

Switched B+

FU1
150A

B- From
Standoff

Battery -

Note: Key Switch ON

85

P2-1

Back-Up Alarm

M2B
85/GRN-WHT

White Back Up Lights (LEDs)

30

87

CB16 (2.5A)
17/PUR

Operational Matrix:
Disabled

Battery Positive +

Enabled

Battery Negative -

• Fwd Switch Input
• Rev Switch Input
• Rev Throttle Command • Neutral - Ready State
• Curtis 1234 Fault

Back-Up
Alarm/Lights

PMC011

4-30

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Back-Up Alarm/Light Failed to Turn ON
Step

Action

1

•
•
•

2

3

Yes

No

Key On
Enable back-up alarm/lights
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key On
Enable back-up alarm/lights
See “Curtis 1234 Controller Diagnostics”
Is there a pertinent Curtis 1234 fault displayed?

Correct Fault
Condition

Go to Step #3

•
•
•

Key Off
See “Propel Diagnostic Mode” section of this manual
Check the “P4:Direction Fwd/Rev” input from the
directional switch
Check the “P2:Throttle” (0-5 vdc) input from the directional pedal
Are the P2 and P4 inputs operating properly?

Go to Step # 4

Correct Faulty
Input Condition

Key Off
Remove M2 relay from connector (see component
locator)
Connect an Ohmmeter between relay terminals 30
and 87 (should test open or “O.L.”)
Apply battery voltage to relay terminals 86 (+) and
85 (-) using fuse-protected jumper leads
Does the relay “click” and do the N.O. (normally open)
terminals 30 and 87 close?

Go to Step #5

Replace Relay

Key Off
Disconnect back-up alarm/light from main harness
Apply battery voltage to back-up alarm/light using
fuse-protected jumper leads
Does the back-up alarm/light turn On?

Go to Step #6

Replace BackUp Alarm/
Light

Key On
Reconnect back-up alarm/light to main harness
Enable back-up alarm/light
Backprobe using a voltmeter between 15/GRN and
17/PUR at the Curtis 1234 controller connection
Is there battery voltage applied?

Repair or
Replace Wire
Harness

Replace Curtis
1234 Controller

•
•
4

•
•
•
•
•

5

•
•
•
•

6

•
•
•
•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
Backprobe = To insert voltmeter probe(s) into the back of a connector to contact a terminal(s) while the circuit operates or should be operating.
VDC = DC Voltage

T17 Service Information 9020167 (6-14)

4-31

TROUBLESHOOTING
Lighting ON
Note: Key Switch ON

B- From
Standoff

M1B CONTACTS

FU1
150A
22/RED-TAN
13/BLK

M3B
Auxiliary Contactor
(near base of steering column)
Red Taillights (LED)
6/BLU

CB11
(15A)

65/GRN

3
1
7
5

4 67/PUR
2
8

68/GRY

76/BLU

Light Switch Position
Lights OFF/Down = 2-1, 6-5
Warning Light ON/Center = 2-3, 6-7
Headlight and Warning ON/Up = 3-4, 7-8

Headlights (LED)

CB12 (2.5A)
CB13 (2.5A)

93/ORA
13/BLK

6

92/BRN

Battery Positive +

13/BLK

OHG Flash/
Strobe Light

CB14
(2.5A)

13/BLK

Flash/Strobe Light

Battery Negative ELC001

4-32

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Lighting Failed to Turn ON
Step

Action

1

•
•
•
•

2

Yes

No

Key On
Light switch On
Firmly press circuit breaker #11 to reset
Is circuit breaker #11 tripped?

Reset and
Test Lighting
Operation

Go to Step #2

•
•
•
•

Key On
Light switch On
Firmly press circuit breaker #12 (Option) to reset
Is circuit breaker #12 tripped?

Reset and
Test Lighting
Operation

Go to Step #3

3

•
•
•
•

Key On
Light switch On
Firmly press circuit breaker #13 (Option) to reset
Is circuit breaker #13 tripped?

Reset and
Test Lighting
Operation

Go to Step #4

4

•
•
•
•

Key On
Light switch On
Firmly press circuit breaker #14 (Option) to reset
Is circuit breaker #14 tripped?

Reset and
Test Lighting
Operation

Go to Step #5

5

•
•
•

Key On
Light switch On
Test voltage applied to the lighting subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•

T17 Service Information 9020167 (6-14)

Value(s)

4-33

TROUBLESHOOTING
Main Scrub Brushes ON
1/RED

+

13/BLK

-

1/RED

36 Volt

3/ORA

13/BLK

CB4
2.5A

BUS BAR

Switched B+
From M1B

FUSE-2
100A

16/BLU

4/YEL

P2-1 (B-) Post

Rear/Right Brush

MTR

3
208/GRY
205/GRN
129/WHT
125/GRN
34/YEL
33/ORA
32/BRN

Front/Left Brush

Encoder

200/TAN

2
1

MTR

3
203/ORA
209/WHT

213/BLK-WHT

204/YEL

2

J9-5 GROUND
J9-4 +5 VDC
J9-3 HALL 3
J9-2 HALL 2
J9-1 HALL 1
J11-5 RT MTR 2

211/PNK

129/WHT
125/GRN
34/YEL
33/ORA
32/BRN

Encoder

To: Interface
Module

J4-18 KSI
(Key Switch Interlock)

8/GRY

To: Interface
Module

T17 Scrub
Module

KEY
SWITCH

1

P1-1 (B+) Post

J11-6 RT MTR 3
J11-4 RT MTR 1

J9-5 GROUND
J9-4 +5 VDC
J9-3 HALL 3
J9-2 HALL 2
J9-1 HALL 1
J10-2 LT MTR 2

CAN +12V
J1-4
CAN GND
J1-3
CAN (-)
J1-2
CAN +
J1-1

Twisted
Pair

J10-3 LT MTR 3
J10-1 LT MTR 1

Battery Positive +
Battery Negative MSC001

4-34

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Main Scrub Brushes Failed to Turn ON
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable main scrub brushes subsystem
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Motors Mode” section of this manual
Activate the main scrub brushes in Motors mode
Do the scrub brushes turn On?

Go to Step #6

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J10-1, 2, 3
or J11-4, 5 ,6 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•
•

Proceed to Step #5 for disk scrub head models
Key Off
Remove cylindrical brushes from scrub head
Check for worn out brushes (see maintenance section)
Check brushes for entangled debris
Check brush idler plugs and bearings for excessive
wear, damage, seizure, etc.
Check main brush drive belts for excessive wear,
damage, etc
Do any of the above conditions exist?

Repair or ReGo to Step #5
place Necessary Cylindrical Scrub Head
Components

Proceed to Step #6 if both brush motors fail to turn
On
Lower main scrub head
Turn key off
Swap motor leads between left and right motors
Does the same motor fail to turn on?

Repair or
Replace Main
Scrub Brush
Motors

Go to Step #6

Key Off
Reconnect main scrub brush motors to correct main
harness connectors
Key On
Enable main scrub brush motors
Test voltage applied to the main scrub brush motor
subsystem as shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
•
•
•
5

•
•
•
•
•

6

•
•
•
•
•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
J5-5 = T12 Scrub Module Connector #5, Pin #5
J5-4 = T12 Scrub Module Connector #5, Pin #4
J5-2 = T12 Scrub Module Connector #5, Pin #2
J5-1 = T12 Scrub Module Connector #5, Pin #1

T17 Service Information 9020167 (6-14)

4-35

TROUBLESHOOTING
Side Scrub Brush ON /Down
Battery (-)

Switched B+
From Buss Bar

13/BLK

2/RED-TAN

T17 Side Scrub
Module

CB3
35A

103/ORA

Side Scrub Brush Actuator
Extend
Limit Sw.

MTR

CAN+ J2-1
CAN- J2-2

2
115/GRN

J4-7 Side
Actuator

108/GRY

J4-8 Side
Actuator

1

2
1

MTR

Twisted
Pair

GRN

6

Enable J4-6

112/BRN

2 OFF

8
5
4
1

Side Scrub

139/WHT
138/GRY
137/PUR
136/BLU
135/GRN

Encoder

YEL

ON

Retract
Limit Sw.

Side Scrub Brush

13/BLK

B(-) J5-2

J5-1 B(+)

110/TAN

3
109/WHT
111/PNK

J4-11 GROUND
J4-15 +5 VDC
J4-16 HALL 3
J4-14 HALL 2
J4-12 HALL 1
J6-2 MTR 2
J6-3 MTR 3
J6-1 MTR 1

Operational Matrix:

Battery Positive +
Battery Negative -

Side Scrub
Brush On/
Down

Enabled

Disabled

• 1-STEP Scrub ON
• Side Brush Switch ON

• 1-STEP Scrub OFF
• Side Brush Switch OFF
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault
• Neutral (Ready State)

SBC004

4-36

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Side Scrub Brush Failed to Turn ON/Lower
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable side scrub brush subsystem
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Motors Mode” section of this manual
Activate the side scrub brush in Motors mode
Do the scrub brushes turn On?

Go to Step #6

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J4-7,8 or
J6-1,2,3 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
Check brush for entangled debris or damage
Do any of the above conditions exist?

Repair or Replace Necessary Components

Go to Step #5

6

•
•
•

Key On
Enable side scrub brush motor
Test voltage applied to the side scrub brush motor
and lift actuator subsystems as shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?
NOTE: The side scrub motor can be tested using the
main brush motor connections of the wire harness. The
side scrub motor must be removed to reach the main
brush motor connections.

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
J4-7,8 = Side Scrub Module Connector #4, Pin #7 or 8
J6-1,2,3 = Side Scrub Module Connector #6, Pin #1, 2, or 3

T17 Service Information 9020167 (6-14)

4-37

TROUBLESHOOTING
Power-Up ON
1/RED

+

1/RED

36 Volt

1/RED

CB4
2.5A

13/BLK

-

Curtis 1234
Controller

M1B

3/ORA

BUS BAR

FUSE-1
150A

CABLE

8/GRY
4/YEL

5/GRN

M1A

24/YEL

BUS BAR

8/GRY

J1-10 E-Stop Switch
J1-6 Coil Driver #1
J1-13 36VDC

17/PUR

FUSE-2
100A

CABLE

13/BLK

KEY
SWITCH

(B-)

J1-1 Key Switch (B+)

E-Stop Switch
8/GRY

(B+)

T17 Scrub
Module
16/BLU

P1-1 (B+) Post
J4-18 Key Switch (B+)
P2-1 (B-) Post

CAN GND

CAN -

CAN +

J1-3 213/BLK-WHT

GRN

YEL

J1-2

J1-1

211/PNK

PUC001

J1-4

Tennant T17
UI ver X.X

CAN +12 V

Instrument Panel Assembly

Battery Positive +
Battery Negative -

4-38

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Machine Failed to Power Up
Step

Action

1

•
•
•

2

3

Yes

No

Key in On Position
Test the total battery voltage using a voltmeter
Is the total battery voltage greater than 30 VDC?

Go to Step #2

Recharge
Batteries and
Test Power-Up
Circuit Operation

•
•
•

Key Off
Firmly press circuit breaker 4 to reset
Is circuit breaker #4 tripped?

Reset and Test
Power-Up Circuit Operation

Go to Step #3

•
•

Key On
Test voltage applied to the power-up subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•

Value(s)

Terms:
VDC = DC Voltage

T17 Service Information 9020167 (6-14)

4-39

TROUBLESHOOTING
Propel Subsystem, Forward

Propel Motor Assembly

INTERLOCK

DRV4

E-STOP

DRV3

FWD
REV

B-

MTR

V/GRN

W/WHT

17/PUR
J1-13
J1-3
15/GRN
J1-4
J1-5
J1-6

To: Back-Up
Light Circuit

M3A
M1A

GND

Cable

J1-23

4-40

DRV1

U/ORN

7/PUR

14/YEL

P1-B
BLK

58/GRY

P1-D

Battery Positive +
PMC014

J1-35

Throttle Sensor

CAN +

closed = brake set

DRV2

CAN -

GND

W
36 VDC

J1-16

P1-A

B+

V

KSI

closed = battery rolled out
YEL

Temp Sender

B+

BATTERY ROLLOUT

THROTTLE

U

Curtis 1234
Controller

J1-11

PARK BRAKE

T2 YEL 62/BRN

RX

FWD/REV Switch

RED

T1

J1-33

YEL

11/PNK

J1-22

THERMISTOR

10/TAN
8
5
4
1

J1-18

J1-10

TX

BRAKE IN

8/GRY

2 REV

B

PROG +

(0-5 vdc) THROTTLE

A

5/GRN

BLK6

E-Stop Switch (N.C.)

6

J1-9

B

I/O GND

A

9/WHT

J1-7

J1-1

Seat Switch (N.O.)

PHASE A

B+

58GRY
J1-31

J1-29

+5V

Cable

J1-28

J1-25

PHASE B

To: Throttle
Sensor (GND)

8/GRY

J1-25

59/WHT

J1-32

FU1
150A

FWD

61/PNK

66/BLU

58/GRY

WHT5

RED1

BLU2

Switched B+
From Buss Bar

Switched B+
From Key Sw.

Amer
Encoder

B- From
Standoff

Note: Key Switch ON

Battery Negative -

To: Curtis 1234
(I/O GND)

Operational Matrix:
Enabled
Propel

• Seat Switch Closed
• Foot Throttle
Command
• Fwd/Rev Switch Input

Disabled
• Seat Switch Open
• Neutral-Ready State
• Park Brake Set
• Rollout Door Open
• Curtis 1234 Fault

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Machine Failed to Propel
Step

Action

1

•
•
•

2

•
•
•
•
•
•
•
•
•

3

•
•
•
•
•

Value(s)

Yes

No

Key On
See “Curtis 1234 Controller Diagnostics” section of
this manual
Does a Curtis 1234 controller fault condition exist?

Correct Fault
Condition

Go to Step #2

Key Off
See “Propel Diagnostic Mode”
Is P1:Curtis Online?
Does P2: Throttle input voltage (0-5 vdc) change
proportionally with throttle pedal movement?
Does P3 :Brake pedal input turn On/Off with brake
pedal activation?
Does P4: Direction input correspond with Fwd/Rev
rocker switch position?
Does P5:Speed input from drive assembly encoder
(speed, direction, position sensor) read “0000.0
Mph?”
Does P8:Propel motor current read “0000.0 Amps?”
Is the answer “Yes” to all of the above?

Go to Step #3

Correct Faulty
Input Condition

Key Off
Place machine on jackstands so drive wheel is lifted
off the floor
Enable forward propel
Test voltage applied to the propel subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

Terms:
LCD = Liquid Crystal Display
VDC = Direct Current Voltage

T17 Service Information 9020167 (6-14)

4-41

TROUBLESHOOTING
Rear Squeegee Down, OFF

Battery (-)

Switched B+
From M1B

13/BLK

2/RED-TAN

CB1
60A

40/TAN
- or 40/BLU

J5-1(B+)

J5-2 (B-)

T17 Water
Pick-Up Module
Squeegee
Actuator

Extend
Limit Sw.

MTR

1

41/PNK

2

42/BRN

J6-18 SQGE ACT 1
J6-17 SQGE ACT 2

Retract
Limit Sw.

CAN (-) J3-2
CAN (+) J3-1

GRN

YEL

Twisted
Pair

Operational Matrix:

Battery Positive +
Battery Negative -

Squeegee
Down

Enabled

Disabled

• 1-STEP Scrub ON
• Squeegee/Vac ON

• 1-STEP Scrub OFF
• Squeegee/Vac OFF
• Reverse Propel
• Recovery Tank Full
• Very Low Batt Voltage
• Circuit Fault

RSL001

4-42

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Rear Squeegee Failed to Raise/Lower
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable rear squeegee down
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate the rear squeegee in manual mode
Does the rear squeegee raise/lower?

Go to Step #5

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J5-3 and
J5-2 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•

Key Off
See TESTING REAR SQUEEGEE LIFT ACTUATOR in the
SERVICE section of this manual
Does the rear squeegee lift actuator pass the testing?

Go to Step #5

Replace Rear
Squeegee Lift
Actuator

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or
Replace Necessary Components

•

5

•
•
•
•

Key Off
Reconnect rear squeegee lift actuator to main wire
harness
Test voltage applied to rear squeegee lift subsystem
as shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Value(s)

See TESTING
REAR SQUEEGEE LIFT
ACTUATOR in
the SERVICE
section of this
manual.

Terms:
LCD = Liquid Crystal Display
J5-3 = Water PU Module Connector #5, Pin #3
J5-2 = Water PU Module Connector #5, Pin #2

T17 Service Information 9020167 (6-14)

4-43

TROUBLESHOOTING
Scrub Head Lift

Battery (-)

Switched B+
From Bus Bar

Switched B+
From Key Switch

Bus Bar

T17 Scrub Module

FUSE 2
100A

16/BLU

8/GRY

Scrub Head Lift Actuator
2
MTR

P1-1 B+

J4-18 Key Switch B(-) P2-1

1

28/GRY
27/PUR

13/BLK

J4-10 Scrub Act
J4-9 Scrub Act
CAN(-) J1-2
CAN(+) J1-1

GRN
YEL Twisted
Pair

Operational Matrix:

Battery Positive +
Battery Negative -

Scrub Head
Down

Enabled
• 1-STEP Scrub ON
• Fwd/Rev Propel

Disabled
• 1-STEP Scrub OFF
• Neutral-Ready State
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault

MSL001

4-44

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Scrub Head Failed to Raise/Lower
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable scrub head down
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate the scrub head in manual mode
Does the scrub head raise/lower?

Go to Step #5

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J4-9 and
J4-10 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•

Key Off
See TESTING MAIN BRUSH LIFT ACTUATOR in the
SERVICE section of this manual
Does the scrub head lift actuator pass the testing?

Go to Step #5

Replace Scrub
Head Lift
Actuator

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
5

•
•
•
•

Key Off
Reconnect scrub head lift actuator to main wire harness
Test voltage applied to scrub head lift subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Value(s)

See TESTING
MAIN BRUSH
LIFT ACTUATOR

Terms:
LCD = Liquid Crystal Display
J4-9 = Scrub Module Connector #4, Pin #9
J4-10 = Scrub Module Connector #4, Pin #10

T17 Service Information 9020167 (6-14)

4-45

TROUBLESHOOTING
Side Sweep Brush(es) ON (Option)

Battery (-)

Switched B+
From M1B

13/BLK

2/RED-TAN

CB3
20A 56/BLU

T17 Side Sweep
Module
J5-2 (B-)

13/BLK

J5-1(B+)

ON
6

Input J6-10
2

MTR

1

71/PNK
72/BRN

100/TAN

2 OFF

J7-1 LH Side Br

8
5
4
1

Side Brush

J7-2 LH Side Br

Left Sweep Brush Motor
13/BLK

Side Sweep Select J6-8
2

MTR

1

73/ORA
74/YEL

Right Sweep Brush Motor

J7-3
RH Side Br

CAN (-) J3-2

J7-4 RH
RH Side Br

CAN (+) J3-1

GRN

YEL

Twisted
Pair

Operational Matrix:

Battery Positive +
Battery Negative -

Side Sweep
Brush(es)

Enabled

Disabled

• 1-STEP Scrub ON
• Side Brush Switch ON
• Fwd/Rev Propel

• 1-STEP Scrub OFF
• Side Brush Switch OFF
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault
• Neutral (Ready State)

RSL001

4-46

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Side Sweep Brush(es) Failed to Turn ON (Option)
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable side brush
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate the side brush in manual mode
Do the side brush turn On?

Go to Step #6

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J7-1,2 or
J7-3,4 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
See “Input Display Mode”
Does I6: Side Sweep On/Off input correspond with
side brush rocker switch position?

Go to Step #5

Correct Faulty
Input Condition

5

•
•

Key Off
See TESTING SIDE SWEEP BRUSH MOTOR in the SERVICE section of this manual
Does the side brush motor pass the testing?

Go to Step #6

Replace Side
Brush Motor

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•

6

•
•
•
•

Key Off
Reconnect side brush motor to main wire harness
Test voltage applied to side brush subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Value(s)

See TESTING
SIDE SWEEP
BRUSH MOTOR

Terms:
LCD = Liquid Crystal Display
J7-1,2 = Side Sweep Module Connector #7, Pin #1 or 2
J7-3,4 = Side Scrub Module Connector #7, Pin #3 or 4

T17 Service Information 9020167 (6-14)

4-47

TROUBLESHOOTING
Side Sweep Brush(es) Extend/Down, OFF (Option)

Battery (-)

Switched B+
From M1B

13/BLK

2/RED-TAN

LH Side Brush
Extend
Actuator
Limit Sw.
MTR

CB3
20A 56/BLU

T17 Side Sweep
Module
J5-2 (B-)

13/BLK

J5-1(B+)

ON
6

Input J6-10

1
57/PUR

2

100/TAN

2 OFF

J6-18 LH Side Br

8
5
4
1

Side Brush

J6-17 LH Side Br
69/WHT

Retract
Limit Sw.

RH Side Brush
Extend
Actuator
Limit Sw.
MTR

13/BLK

Side Sweep Select J6-8
CAN (-) J3-2

1
75/GRN

J6-16
RH Side Br

78/GRY

J6-14
RH Side Br

2

CAN (+) J3-1

GRN

YEL

Twisted
Pair

Retract
Limit Sw.

Operational Matrix:

Battery Positive +
Battery Negative -

Side Sweep
Brush(es)

Enabled

Disabled

• 1-STEP Scrub ON
• Side Brush Switch ON

• 1-STEP Scrub OFF
• Side Brush Switch OFF
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault
• Neutral (Ready State)

RSL001

4-48

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Side Sweep Brush(es) Failed to Extend/Lower (Option)
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable side brush extend/down
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Extend/Lower the side brush in manual mode
Does the side brush extend/lower?

Go to Step #6

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J6-17,18 or
J6-14,16 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
See “Input Display Mode”
Does I6: Side Sweep On/Off input correspond with
side brush rocker switch position?

Go to Step #5

Correct Faulty
Input Condition

5

•
•

Key Off
See TESTING SIDE SWEEP BRUSH LIFT ACTUATOR in
the SERVICE section of this manual
Does the side brush lift actuator pass the testing?

Go to Step #6

Replace Side
Brush Lift
Actuator

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
6

•
•
•
•
•
•

Key Off
Reconnect side brush lift actuator to main wire harness
Key On
Side brush extend/down enabled
Test voltage applied to side brush lift subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Value(s)

See TESTING
SIDE SWEEP
BRUSH LIFT
ACTUATOR

Terms:
LCD = Liquid Crystal Display
J6-17,18 = Side Sweep Module Connector #6, Pin #17 or 18
J6-14,16 = Side Scrub Module Connector #6, Pin #14 or 16

T17 Service Information 9020167 (6-14)

4-49

TROUBLESHOOTING
Side Sweep Brush(es) Retract/Up, OFF (Option)

Battery (-)

Switched B+
From M1B

13/BLK

2/RED-TAN

LH Side Brush
Extend
Actuator
Limit Sw.
MTR

CB3
20A 56/BLU

T17 Side Sweep
Module
J5-2 (B-)

13/BLK

J5-1(B+)

ON
6

Input J6-10

1
57/PUR

2

100/TAN

2 OFF

J6-18 LH Side Br

8
5
4
1

Side Brush

J6-17 LH Side Br
69/WHT

Retract
Limit Sw.

RH Side Brush
Extend
Actuator
Limit Sw.
MTR

13/BLK

Side Sweep Select J6-8
CAN (-) J3-2

1
75/GRN

J6-16
RH Side Br

78/GRY

J6-14
RH Side Br

2

CAN (+) J3-1

GRN

YEL

Twisted
Pair

Retract
Limit Sw.

Operational Matrix:

Battery Positive +
Battery Negative -

Enabled

Disabled

• 1-STEP Scrub OFF

• 1-STEP Scrub ON

Side Sweep • Side Brush Switch OFF • Side Brush Switch ON
Brush(es) • Recovery Tank Full
Retract/Up • Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault

RSL001

4-50

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Side Sweep Brush(es) Failed to Retract/Raise (Option)
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable side brush retract/up
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J6-17,18 or
J6-14,16 as open or shorted?

Go to Step #3

Correct Faulty
Input Condition

3

•
•
•

Key Off
See “Input Display Mode”
Does I6: Side Sweep On/Off input correspond with
side brush rocker switch position?

Go to Step #4

Correct Faulty
Input Condition

4

•
•

Key Off
See TESTING SIDE SWEEP BRUSH LIFT ACTUATOR in
the SERVICE section of this manual
Does the side brush lift actuator pass the testing?

Go to Step #5

Replace Side
Brush Lift
Actuator

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
5

•
•
•
•

Key On
Side brush switch Off
Test voltage applied to side brush lift subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Value(s)

See TESTING
SIDE SWEEP
BRUSH LIFT
ACTUATOR

Terms:
LCD = Liquid Crystal Display
J6-17,18 = Side Sweep Module Connector #6, Pin #17 or 18
J6-14,16 = Side Scrub Module Connector #6, Pin #14 or 16

T17 Service Information 9020167 (6-14)

4-51

TROUBLESHOOTING
Solution Control ON - Main Brush (Conventional)

* SV3 (J4-17) H2O Valve Voltages
Level

PWM%

Low

1-LED
2-LEDs
3-LEDs

16%
31%
47%

1-LED
2-LEDs
3-LEDs

31%
47%
63%

1-LED
2-LEDs
3-LEDs

47%
63%
83%

Med

(Default)

High

Battery (-)

Switched B+
From Key Switch

Battery (+)

Range

1/RED

NOTE: The period for one cycle is 2 seconds.
For example, 50% would be 1 second On and
one second off. 75% would be 1.5 seconds On
and 0.5 seconds Off.
8/GRY

M1B
Bus Bar

FUSE 2
100A

16/BLU

J4-18 Key Switch

P1-1 (B+)

B(-) P2-1

2/RED-TAN

13/BLK

T17 Scrub Module
CAN(-) J1-2

CB6
2.5A

CAN(+) J1-1

19/WHT

18/GRY

SV-3 Conventional
Water Solenoid

GRN
YEL Twisted
Pair

J4-17 Main
Water Solenoid

Operational Matrix:

Battery Positive +
Battery Negative -

Enabled

Disabled

• 1-STEP Scrub ON

• 1-STEP Scrub OFF
• Solution Control OFF
• Neutral-Ready State
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault

• Solution Control ON
Solution
Control - Main • Fwd/Rev Propel
(Conventional)

CSC002

4-52

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Solution Control Failed to Turn ON - Main Brush (Conventional)
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable solution control (conventional)
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate solution control in manual mode
Does the machine dispense water to the floor?

Go to Step #7

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuit J4-17 as
open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
Firmly press circuit breaker #6 to reset
Is circuit breaker #6 tripped?

Reset and Test
Solution Control Operation

Go to Step #5

5

•
•
•

Key Off
Disconnect SV3 from main wire harness
Apply battery voltage to SV3 using fuse-protected
jumper leads
Does the main brush dispense solution?

Go to Step #6

Repair or
Replace S3

Key Off
Reconnect SV3 to main wire harness
Key On
Enable solution control (conventional)
Test voltage applied to solution control subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
6

•
•
•
•
•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
J4-17 = Scrub Module Connector #4, Pin #17
SV3 = Solenoid Valve #3 (Main Brush)

T17 Service Information 9020167 (6-14)

4-53

TROUBLESHOOTING
Solution Control ON - Side Brush (Conventional)
Battery (-)

Switched B+
From Buss Bar

* Side Pump (J4-10) Voltages
Range

Level

Voltage

Low

1-LED
2-LEDs
3-LEDs

4.9 V
6.1 V
7.3 V

1-LED
2-LEDs
3-LEDs

6.1 V
7.3 V
8.5 V

1-LED
2-LEDs
3-LEDs

7.3 V
8.5 V
9.7 V

Med

(Default)

High

T17 Side Scrub
Module

CB3
35A

103/ORA

J5-1 B(+)

SV6 Side Br.
H2O Valve

CB7
2.5A
104/YEL

*Side Br.
Water Pump
MTR

CAN- J2-2

107/PUR

YEL

Twisted
Pair

GRN

ON

J4-9 Side
H2O Valve

6

Enable J4-6

106/BLU

13/BLK

B(-) J5-2
CAN+ J2-1

2/RED-TAN

13/BLK

2/RED-TAN

NOTE: The side water valve stays on continuously
when the side water pump is operating at any
voltage.

J4-10 Side H2O Pump

112/BRN

2 OFF

8
5
4
1

Side Scrub

Operational Matrix:

Battery Positive +
Battery Negative SBC004

4-54

Enabled

Disabled

• 1-STEP Scrub ON

• 1-STEP Scrub OFF
• Side Brush Switch OFF
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault
• Neutral (Ready State)

Solution
• Side Brush Switch ON
Control-Side • Fwd/Rev Propel
(Conventional)

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Solution Control Failed to Turn ON - Side Brush (Conventional)
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable side brush solution control (conventional)
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate solution control in manual mode
Does the machine dispense water to the side brush?

Go to Step #7

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J4-10 or
J4-9 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
Firmly press circuit breaker #3 to reset
Is circuit breaker #3 tripped?

Reset and Test
Solution Control Operation

Go to Step #5

5

•
•
•

Key Off
Firmly press circuit breaker #7 to reset
Is circuit breaker #7 tripped?

Reset and Test
Solution Control Operation

Go to Step #6

6

•
•

Key Off
Disconnect SV6 and side brush water pump from
main wire harness
Apply battery voltage to SV6 and side brush water
pump using fuse-protected jumper leads
Does the side brush dispense solution?

Go to Step #7

Repair or
Replace SV6
or Side Brush
Water Pump

Key Off
Reconnect SV6 and side brush water pump to main
wire harness
Key On
Enable side brush solution control (conventional)
Test voltage applied to the side brush solution control subsystem as shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
•

7

•
•
•
•
•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
J4-9 = Side Scrub Module Connector #4, Pin #9
J4-10 = Side Scrub Module Connector #4, Pin #10
SV6 = Solenoid Valve #6 (Side Brush)

T17 Service Information 9020167 (6-14)

4-55

TROUBLESHOOTING
Solution Control ON (ec-H2O)
* Ec Pump (J4-4) Voltages
Level

Voltage

+ Side Br

Low

1-LED
2-LEDs
3-LEDs

7.5 V
11.2 V
16.2 V

12.5 V
16.2 V
21.2 V

1-LED
2-LEDs
3-LEDs

11.2 V
16.2 V
21.2 V

17.5 V
21.2 V
23.7 V

1-LED
2-LEDs
3-LEDs

16.2 V
21.2 V
25 V

21.2 V
23.7 V
25 V

Med

(Default)

Switched B+
From M1B

High

B- From
Standoff

Range

J4-1 VCC_1
J4-2 VCC_2

GND J4-14

2/RED-TAN

GND J4-13
GND J4-12

SV7 ec-H2O
Side Br. Valve

CB8
2.5A

46/BLU

51/PNK

ec-H2O
Module

CB9
2.5A

C1 Capacitor (0.01Uf )
50/TAN

+

52/BRN

-

Pressure IN
J4-9

J4-4 Pump

MTR

CAN (+) J4-10

ec-H2O Pump

CAN (-) J4-11
50/TAN

8EA/GRY
Sparger

7EA/PUR
3EA/ORA

e-Cell

13/BLK

J4-5 Side Br. Valve

4EA/YEL

N.C. Opens @
20 +/- 2 psi = Fault
N.O.

60/TAN

Com

N.C.

CAN+/YEL
Twisted Pair
CAN-/GRN

J4-3 Flyback
J5-1 (SPA-A) (ec-H2O SW)
J5-6
J5-2 (SPA-B) (ec-H2O SW) 9EA/WHT
J5-5

Flush Switch

13EA/BLK

J5-3 (CELL-A)
J5-4 (CELL-B)

Operational Matrix:
Enabled

Battery Positive +
Battery Negative ECC001

4-56

Solution
Control
(ec-H2O)

Disabled

• 1-STEP Scrub ON
• Solution Control ON
• ec-H2O Button ON
• Fwd/Rev Propel

• 1-STEP Scrub OFF
• Solution Control OFF
• ec-H2O Button OFF/SE ON
• Neutral-Ready State
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• ec-H2O System Fault
• Circuit Fault

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Solution Control Failed to Turn ON (ec-H2O)
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable solution control (ec-H2O)
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•

Key Off
Firmly press circuit breakers #8 and #9 to reset
Is a circuit breaker tripped?

Reset and Test
ec-H2O Solution Control
Operation

Go to Step #3

3

•
•
•

Key Off
Enable solution control (ec-H2O)
Is the ec-H2O LED flashing RED, indicating a system
restriction or low water conductivity*?

See “ec-H2O
Module Flush
Procedure”
Section. Then
Proceed to
Step #4

Go to Step #5

4

•
•

System OK

•

Key Off
See “ec-H2O Module Flush Procedure” section of this
manual
Did the flush procedure fix the problem?

See “Testing
ec-H2O Pressure Switch”

5

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate solution control (ec-H2O) in manual mode
Does solution control (ec-H2O) turn On?

Go to Step #8

Go to Step #6

6

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J4-4,5 or
J5-1,2 or J5-3,4 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #7

7

•
•
•

Key Off
Disconnect ec-H2O water pump from wire harness
Apply battery voltage to ec-H2O water pump using
fuse-protected jumper leads
Does the ec-H2O water pump dispense water?

Go to Step #8

Repair or Replace ec-H2O
Water Pump

Key Off
Reconnect ec-H2O water pump to wire harness
Key On
Enable solution control (ec-H2O)
Test voltage applied to solution control (ec-H2O)
system as shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go to Step #9

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

Key On
Enable solution control (ec-H2O)
Is the ec-H2O LED solid RED, indicating an overcurrent condition on a system component?

Replace
ec-H2O
Module

Go Back to
Step #1

•
8

•
•
•
•
•
•

9

•
•
•

Value(s)

See “Self-Test
Mode”

*NOTE: Add 1/2 tablespoon of salt for every 10 gallons of water in the solution tank to increase water conductivity.
Terms:
LCD = Liquid Crystal Display
LED = Light Emitting Diode
J4-4 = ec-H2O Module Connector #4, Pin #4
J4-5 = ec-H2O Module Connector #4, Pin #5

J5-1 = ec-H2O Module Connector #5, Pin #1
J5-2 = ec-H2O Module Connector #5, Pin #2
J5-3 = ec-H2O Module Connector #5, Pin #3
J5-4 = ec-H2O Module Connector #5, Pin #4

T17 Service Information 9020167 (6-14)

4-57

TROUBLESHOOTING
Severe Environment - Spot Cleaning
Switched B+
From Key Switch

Range

1%

1/RED

2%

(Default)

3%

Level

Voltage

+ Side Br

1-LED
2-LEDs
3-LEDs

4.5 V
7.6 V
9.4 V

6.5 V
9.0 V
10.5 V

1-LED
2-LEDs
3-LEDs

10.1 V
15.5 V
34.4 V

12.4 V
26.6 V
36 V

1-LED
2-LEDs
3-LEDs

18.5 V
36 V
36 V

36 V
36 V
36 V

J4-18 Key Switch

FUSE 2
100A

Bus Bar

16/BLU

2/RED-TAN

P1-1 (B+)

B(-) P2-1

CAN(-) J1-2
Severe
Environment
Pump

19/WHT

CAN(+) J1-1
23/ORA

MTR

19/WHT

Long Spot
Clean LED

19/WHT

12

11

25/GRN

10

9

26/BLU

NOTE: Pump and LED operate for
duration set in configuration mode.
Default duration is 30 seconds (short)
and 36 minutes (long).

Battery Positive +
Battery Negative -

GRN
Twisted
Pair

YEL

J4-14 Severe
Environment Pump Spot Clean
Short Spot J4-8
35/GRN
J4-12 Long Spot
Clean LED
Long Spot J4-7
36/BLU

Short Spot
Clean LED

19/WHT

13/BLK

13/BLK

CB6
2.5A

NOTE: Conventional water
range changes to heavy
during severe environment
mode.

T17 Scrub Module

8/GRY

M1B

Battery (-)

Battery (+)

* SE Pump (J4-14) Voltages

11
8
5
4
1
9

12
6
2
10

NOTE: See LEDs on
left side of schematic

J4-11 Short Spot
Clean LED

Operational Matrix:
Severe
Environment
Spot Clean

Enabled

Disabled

• 1-STEP Scrub ON
• Solution Control ON
• Fwd/Rev Propel
• SE Switch On

• 1-STEP Scrub OFF
• Solution Control OFF
• Neutral-Ready State
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault

CSC003

4-58

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Severe Environment - Spot Cleaning Failed to Turn On
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable severe environment - spot clean
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate detergent pump in manual mode
Does the pump dispense detergent?

Go to Step #7

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J4-14, J4-12,
or J4-11 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
Firmly press circuit breaker #6 to reset
Is circuit breaker #6 tripped?

Reset and Test
SE-Spot Clean
Operation

Go to Step #5

5

•
•

Key Off
Check to be sure there is detergent in the concentrate tank
Disconnect detergent pump from main wire harness
Apply battery voltage to detergent pump using fuseprotected jumper leads
Does the pump dispense detergent?

Go to Step #6

Repair or
Replace detergent pump

Key Off
Reconnect detergent pump to main wire harness
Key On
Enable severe environment subsystem
Test voltage applied to the severe environment subsystem as shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
•
•
6

•
•
•
•
•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
J4-14 = Scrub Module Connector #4, Pin #14
J4-12 = Scrub Module Connector #4, Pin #12
J4-11 = Scrub Module Connector #4, Pin #11

T17 Service Information 9020167 (6-14)

4-59

TROUBLESHOOTING
ES Detergent Pump
ES Detergent Pump Voltages
ES w/o Side
Brush

Economy
1 LED

Economy
2 LEDs

Economy
3 LEDs

Normal
1 LED

Normal
2 LEDs

Normal
3 LEDs

Heavy
1 LED

Heavy
2 LEDs

Heavy
3 LEDs

1% Dilution

0V

2.0V

4.5V

0V

6.8V

10.1V

0V

9.8V

18.5V

2% Dilution

0V

4.5V

7.6V

0V

10.1V

15.5V

0V

18.5V

36V

3% Dilution

0V

7.6V

9.4V

0V

15.5V

34.4V

0V

36V

36V

ES w/ Side
Brush

Economy
1 LED

Economy
2 LEDs

Economy
3 LEDs

Normal
1 LED

Normal
2 LEDs

Normal
3 LEDs

Heavy
1 LED

Heavy
2 LEDs

Heavy
3 LEDs

1% Dilution

0V

3.0V

6.5V

0V

9.0V

12.4V

0V

12.7V

36V

2% Dilution

0V

6.5V

9.0V

0V

12.4V

26.6V

0V

36V

36V

3% Dilution

0V

9.0V

10.5V

0V

26.6V

36V

0V

36V

36V

Battery (-)

Switched B+
From Key Switch

Battery (+)

1/RED

T17 Scrub Module
8/GRY

M1B

J4-18 Key Switch

FUSE 2
100A

Bus Bar

16/BLU

2/RED-TAN

P1-1 (B+)

B(-) P2-1

CAN(-) J1-2
CAN(+) J1-1

ES
Pump
19/WHT

MTR

23/ORA

GRN
YEL

Twisted
Pair

13/BLK

CB6
2.5A

13/BLK

J4-14 ES
Detergent Pump

Operational Matrix:
Enabled
Battery Positive +
Battery Negative -

Disabled

• 1-STEP Scrub ON
ES
• Solution Control ON
Detergent 2 or 3 LEDs
Pump
• Fwd/Rev Propel
• ES On

• 1-STEP Scrub OFF
• Solution Control/ES OFF
• Neutral-Ready State
• Recovery Tank Full
• Solution Tank Empty
• Very Low Batt Voltage
• Circuit Fault

CSC003

4-60

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
ES Detergent Pump Failed to Turn On
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable ES scrubbing technology
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate detergent pump in manual mode
Does the pump dispense detergent?

Go to Step #7

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J4-14 as
open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
Firmly press circuit breaker #6 to reset
Is circuit breaker #6 tripped?

Reset and Test
ES Detergent
Pump Operation

Go to Step #5

5

•
•

Key Off
Check to be sure there is detergent in the concentrate tank
Disconnect detergent pump from main wire harness
Apply battery voltage to detergent pump using fuseprotected jumper leads
Does the pump dispense detergent?

Go to Step #6

Repair or
Replace detergent pump

Key Off
Reconnect detergent pump to main wire harness
Key On
Enable ES detergent pump
Test voltage applied to the ES detergent pump as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
•
•
6

•
•
•
•
•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
J4-14 = Scrub Module Connector #4, Pin #14

T17 Service Information 9020167 (6-14)

4-61

TROUBLESHOOTING
ES Water Pump

Battery (-)

Switched B+
From M1B

40/TAN
- or 40/BLU

13/BLK

2/RED-TAN

CB1
60A

J5-1(B+)

J5-2 (B-)

T17 Water
Pick-Up Module

2/RED-TAN

ES Pump
1
MTR

2 48/GRY
49/WHT

CB5
2.5A

J6-14 ES PUMP (-)
Rec Tank
Full = Closed

J6-13 ES PUMP (+)
Rec Tank Full J6-10

54/YEL

J6-12 Autofill
Solution Valve

53/ORA

Rec Tank 1/2 Full J6-9
55/GRN

J6-11 Autofill
Recovery Valve

Rec Tank
1/2 Full = Closed

CAN (-) J3-2
CAN (+) J3-1

GRN

YEL

Twisted
Pair

Operational Matrix:

Battery Positive +
Battery Negative -

ES Water
Pump

Enabled

Disabled

• 1-STEP Scrub ON
• Squeegee/Vac ON
• ES On
• Rec Tank 1/2 Full
• Sol Tank Not Full

• 1-STEP Scrub OFF
• Squeegee/Vac OFF
• Sol/Rec Tank Full
• ES Oﬀ
• Very Low Batt Voltage
• Circuit Fault

RSL001

4-62

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
ES Water Pump Failed to Turn On
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable ES scrubbing technology
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate ES pump in manual mode
Does the ES pump turn On?

Go to Step #7

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J6-13,14 as
open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•
•

Key Off
Firmly press circuit breaker #1 to reset
Is circuit breaker #1 tripped?

Reset and
Test ES Pump
Operation

Go to Step #5

5

•
•

Key Off
Check to be sure there is water in the recovery tank
and that the solution tank is not full
Disconnect ES pump from main wire harness
Apply battery voltage to ES pump using fuse-protected jumper leads
Does the ES pump transfer water from the recovery
tank to the solution tank?

Go to Step #6

Repair or Replace ES pump

Key Off
Reconnect ES pump to main wire harness
Key On
Enable ES pump
Test voltage applied to the ES pump as shown on the
electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
•
•
6

•
•
•
•
•
•

Value(s)

Terms:
LCD = Liquid Crystal Display
J6-14 = Scrub Module Connector #6, Pin #14

T17 Service Information 9020167 (6-14)

4-63

TROUBLESHOOTING
Spray Nozzle ON (Option)

Note: Key Switch ON

Battery (-)

Switched B+
From M3B

13/BLK

6/BLU

CB10
15A

D-2

Spray Nozzle Switch
63/ORA

1
4
5
8
9

2
6
10

64/YEL

MTR

13/BLK

Spray Nozzle Pump
13/BLK

64/YEL

Battery Positive +
Battery Negative SNC001

4-64

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Spray Nozzle Failed to Turn ON (Option)
Step

Action

1

•
•
•

2

3

Yes

No

Key On
Enable spray nozzle subsystem
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•

Key Off
Firmly press circuit breaker #10 to reset
Is circuit breaker #10 tripped?

Reset and Test
Spray Nozzle
Operation

Go to Step #3

•
•

Key Off
Disconnect spray nozzle water pump from wire harness
Apply battery voltage to spray nozzle water pump
using fuse-protected jumper leads
Does the spray nozzle water pump dispense water?

Go to Step #4

Repair or
Replace Spray
Nozzle Water
Pump

Key Off
Reconnect spray nozzle water pump to wire harness
Key On
Turn spray nozzle switch On
Test voltage applied to spray nozzle subsystem as
shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•
•
4

•
•
•
•
•
•

T17 Service Information 9020167 (6-14)

Value(s)

4-65

TROUBLESHOOTING
Scrub Vacuum Fans ON

Battery (-)

Switched B+
From M1B

13/BLK

2/RED-TAN

CB1
60A

40/TAN
- or 40/BLU

J5-1(B+)

J5-2 (B-)

T17 Water
Pick-Up Module
Vacuum Fan #1
2
MTR

1

43/ORA
44/YEL

Vacuum Fan #2
2
MTR

1

45/GRN
47/PUR

J7-1 Vac Fan J7-2 Vac Fan +

J7-3 Vac Fan J7-4 Vac Fan +

CAN (-) J3-2
CAN (+) J3-1

GRN

YEL

Twisted
Pair

Operational Matrix:

Battery Positive +
Battery Negative -

Enabled
Disabled
• 1-STEP Scrub ON
• 1-STEP Scrub OFF
•
Squeegee/Vac
ON
• Squeegee/Vac OFF
Vacuum Fans
• Recovery Tank Full
• Very Low Batt Voltage
• Circuit Fault

RSL001

4-66

T17 Service Information 9020167 (6-14)

TROUBLESHOOTING
Scrub Vacuum Fan(s) Failed to Turn ON
Step

Action

1

•
•
•

2

Yes

No

Key On
Enable scrubbing vacuum fans
Is there a pertinent LCD warning or fault message
displayed?

See “LCD
Warnings” or
“LCD Faults”
Sections

Go to Step #2

•
•
•
•

Key Off
See “Manual Mode” section of this manual
Activate vacuum fans in manual mode
Do the vacuum fans turn On?

Go to Step #5

Go to Step #3

3

•
•
•

Key Off
See “Self-Test Mode”
Does the Self-Test display output circuits J7-1,2 or
J7-3,4 as open or shorted?

Correct Open
or Short Circuit Condition

Go to Step #4

4

•
•

Key Off
See TESTING VACUUM FAN (SCRUBBING) in the SERVICE section of this manual
Do the vacuum fan motors pass the testing?

Go to Step #5

Repair or Replace Vacuum
Fan Motor

Go Back to
Step #1

Identify Voltage Drop
Location and
Repair or Replace Necessary Components

•

5

•
•
•
•
•
•

Key Off
Reconnect vacuum fan motor to main wire harness
Key On
Enable scrubbing vacuum fan subsystem
Test voltage applied to the scrubbing vacuum fan
subsystem as shown on the electrical schematic
Are the electrical circuits operating as shown on the
electrical schematic?

Value(s)

See TESTING
VACUUM FAN
(SCRUBBING)

Terms:
LCD = Liquid Crystal Display
J7-1,2 = Water PU Module Connector #7, Pin #1 or 2
J7-3,4 = Water PU Module Connector #7, Pin #3 or 4

T17 Service Information 9020167 (6-14)

4-67

TROUBLESHOOTING

4-68

T17 Service Information 9020167 (6-14)

SERVICE

SECTION
Contents

Page Contents

Service
Service Procedures. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-2
		Rear Squeegee Lift Actuator .  .  .  .  .  .  .  . 5-2
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-2
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-3
			 rod adjustment .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-3
		 Side Brush Lift Actuator.  .  .  .  .  .  .  .  .  .  .  .  . 5-4
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-4
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-5
			Adusting side brush
				spring tube assembly. .  .  .  .  .  .  .  .  .  .  . 5-5
		Vacuum Fan Assembly .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-6
			Removal .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-6
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-7
		side brush motor.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-8
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-8
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-9
		 main brush lift actuator.  .  .  .  .  .  .  .  .  .  . 5-10
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-10
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-11
		Main Scrub head.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-12
			removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-12
			installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-13
		 main scrub brush motor
			(cylindrical) .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-14
				removal.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-14
				installation. . . . . . . . . . . . . . . . . . . . 5-15
		instrument panel.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-16
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-16
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-16
	logic board replacement. . . . . . . . . . 5-17
			removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-17
			installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-18
		 Steering Wheel Timing.  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-19
		 Wheel Drive Assembly .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-20
			Removal. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-20
			Installation.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-21
			 Tire Replacement. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-22
		Rear brake adjustment .  .  .  .  .  .  .  .  .  .  .  .  . 5-23
	Component Testing.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-24
		Recovery Tank Level Sensors.  .  .  .  .  .  . 5-24
		 Solution tank level sensor .  .  .  .  .  .  .  . 5-26
		 Propel Motor (and Encoder).  .  .  .  .  .  . 5-28
		 Propel Motor Cables.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-30
		 Throttle Sensor.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-32
		 Side Brush Lift Actuator.  .  .  .  .  .  .  .  .  .  .  . 5-34

T17 Service Information 9020167 (6-14)

5

Page

	Component Testing (Continued)
		Main Brush Lift Actuator.  .  .  .  .  .  .  .  .  .  . 5-35
		 rear sqge Lift Actuator. . . . . . . . . . . . 5-36
		 vacuum fan. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-37
		side Sweep brush motor .  .  .  .  .  .  .  .  .  .  .  . 5-38
		 ec-h2o pump.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5-39
		 ec-h2o pressure switch.  .  .  .  .  .  .  .  .  .  .  .  . 5-40

5-1

SERVICE
Rear Squeegee Lift
Removing Rear Squeegee Lift Actuator
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.

4. Enter Manual Mode and lower scrub head completely
(See Manual Mode in the Troubleshooting section of
this manual). Turn key Off immediately when head
touches the floor.
CONFIG MODE

1. Remove rear squeegee and set aside.

SELF TEST
MANUAL MODE
INPUT DISPLAY
CAN DIAG MODE

MANUAL MODE
PROPEL DIAG MODE
FIRMWARE UPDATE

NOTE: Cylindrical Scrub Head Only: Remove debris tray
from rear of scrub head to allow for additional clearance.

2. Lift front of machine as shown below. Be sure to use
wheel chocks and jack stands.

5. Loosen autofill valve mounting bracket (option) and
carefully move the valve assembly aside to allow access to the lift actuator clevis pin.

3. Proceed to next step if actuator failed in lowered position. Carefully support rear squeegee mounting
bracket using a spacer block. This removes any spring
tension from the lift cable.

5-2

T17 Service Information 9020167 (6-14)

SERVICE
6. Remove lift actuator cotter and clevis pins and set
hardware aside. Cut zip tie and disconnect lift actuator from wire harness.

Installing Rear Squeegee Lift Actuator
1. Installation is reverse of removal.

Rear Squeegee linkage rod adjustment
1. The initial squeegee linkage rod adjustment is 11.5 in
(29.2 cm) center-to-center.

11.5 in (29.2 cm)

7. Remove lift actuator.

T17 Service Information 9020167 (6-14)

5-3

SERVICE
Side Brush Lift Actuator
Removing side brush Lift Actuator
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.

4. Cut zip tie securing actuator connector to wire harness and disconnect actuator from wire harness.
5. Remove actuator mounting clevis (2) and cotter (2)
pins.

1. Lift front of machine as shown below. Be sure to use
wheel chocks and jack stands.

6. Remove cotter and clevis pin from actuaotor.

2. Remove side brush side squeegee assembly and side
brush and set aside

7. Remove lift actuator from machine.

3. Remove side brush assembly mounting bolt and
carefully lower the side brush mechanism to the floor.

5-4

T17 Service Information 9020167 (6-14)

SERVICE
Installing side brush Lift Actuator
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.

3 . Loosen the jam nut on the spring-tube assembly and
turn the body of the spring tube until the initial endto-end dimension is 14.5 in (36.8 cm).

NOTE: The side brush spring tube assembly must be adjusted following the installation of the lift actuator or machine
damage will occur.
1. Installation is the reverse of removal.

Adjusting side brush Spring Tube Assembly
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.
1. Lift front of machine as shown below. Be sure to use
jack stands and chock rear wheels.

2. Activate and lower the side brush to provide access
to the spring-tube assembly. Turn key off after brush
has lowered.

T17 Service Information 9020167 (6-14)

14.5

in (

36.8

cm

)

4 . The final adjustment should be made following an
inspection of the side scrub brush in the raised/retracted position. The bottom of the brush hub should
be 3.75-4.00 in (9.5-10.2 cm) from the floor to allow
for brush replacement clearance. Tighten the jam nut
when the desired height has been reached.

5-5

SERVICE
3. Key On, 1-STEP scrub On, side brush switch On. Allow
the side brush to lower completely and then turn the
key off.

vacuum fan assembly
Removing vacuum fan assembly
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.
1. Key Off and disconnect battery.
2. Disconnect vacuum fan from wire harness connections.

4. Loosen forward jam nut on side brush spring tube
assembly.

3. Remove vacuum fan mounting hardware (5).

5. Turn the spring tube assembly CW to shorten the
tube, thereby opening the adjustment gap in Step 2.
Turn the spring tube assembly CCW to lengthen the
tube, therby closing the adjustment gap in Step 2.
Cycle the side brush up down to check the gap.

6. Tightent the jam nut.

5-6

T17 Service Information 9020167 (6-14)

SERVICE
4. Remove vacuum fan assembly.

Installing vacuum fan assembly
1. Note the orientation of the vacuum fan exhaust port
to the rubber indicators for proper installation.

5. Draw a line across the vacuum fan assembly and the
mounting flange as an orientation indicator for reassembly.

2. Remainder of installation is reverse of removal.

6. Loosen the clamp and remove mounting flange from
vacuum fan assembly.

7. Disconnect muffler from vacuum fan assembly.

T17 Service Information 9020167 (6-14)

5-7

SERVICE
Side Brush Motor
Removing side brush motor
FOR SAFETY: Before leaving or servicing machine, stop
on level surface.

5. Key On, 1-STEP Scrub On, side brush On and allow
side brush motor to lower completely. Turn Key Off.
6. Remove side brush cover mounting hardware (2) and
set aside.

1. Jack front of machine and support using jack stands
or support blocks.
2. Remove side brush and side brush squeegee assembly and set aside.
3. Remove side brush hub mounting bolt (1) and hub
and set aside.

4. Remove motor mounting hardware (4) and set aside.

7. Disconnect side brush motor from wire harness and
remove side brush motor.
NOTE: Slide white locking tab inward and then press the
release button.

5-8

T17 Service Information 9020167 (6-14)

SERVICE
8. Remove side brush motor.

installing side brush motor
1. Installation is the reverse of removal. .
NOTE: Apply anti-seize to side brush motor shaft and motor/hub mounting hardware.

T17 Service Information 9020167 (6-14)

5-9

SERVICE
Main Brush Lift Actuator

5. Jack front of machine and support using jack stands
or support blocks.

Removing main brush Lift Actuator
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.
1. Key Off. Disconnect batteries.
2. Remove Scrub Brushes.
3. Carefully remove front linkage pivot bolts (2).
NOTE: The front of the scrub head will drop to
the floor once the mounting hardware is removed.

4. Carefully remove rear linkage pivot bolts (2).

6. Disconnect lift actuator from wire harness.
7. Remove lift actuator mounting pins (2).

8. Remove lift actuator.

NOTE: The rear of the scrub head will drop to the
floor once the mounting hardware is removed.

5-10

T17 Service Information 9020167 (6-14)

SERVICE
installing main brush Lift Actuator
1. Key Off. Disconnect batteries.
2. Installation is the reverse of removal.
NOTE: This actuator does not require an installation adjustment. Turn the actuator tube manually to align the mounting holes and insert clevis and cotter pins.

T17 Service Information 9020167 (6-14)

5-11

SERVICE
Main Scrub Head
Removing main Scrub Head
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.

5. Carefully remove front linkage pivot bolts (2).
NOTE: The front of the scrub head will drop to
the floor once the mounting hardware is removed.

1. Drain solution tank and turn key Off.
2. Remove scrub brushes and debris tray (cylindrical
only).
3. Lift front of machine as shown below. Be sure to use
wheel chocks and jack stands or support blocks.

6. Carefully remove rear linkage pivot bolts (2).
NOTE: The rear of the scrub head will drop to the
floor once the mounting hardware is removed.

4. Enter Manual Mode and lower scrub head completely
(See Manual Mode in the Troubleshooting section of
this manual). Turn key Off immediately when head
touches the floor.

7. Jack front of machine and support using jack stands
or support blocks.

5-12

T17 Service Information 9020167 (6-14)

SERVICE
8. Disconnect lift actuator from wire harness.

12. Use a ratchet strap to support the lift mechanism to
avoid interference during scrub head removal.

9. Remove lift actuator mounting pins (2).

13. Remove scrub head.
10. Remove lift actuator.

installing main scrub head
11. Disconnect water valve from wire harness and solution hose.

1. Key Off. Disconnect batteries.
2. Installation is the reverse of removal.
NOTE: This actuator does not require an installation adjustment. Turn the actuator tube manually to align the mounting holes and insert clevis and cotter pins.
3. Cylindrical scrub head only: See cylindrical
pattern adjustment procedure in the maintenance section of this manual.

NOTE: The solution tank will drain from this
hose. Be sure to drain the solution tank prior to
removing the hose (see Step 1.)

T17 Service Information 9020167 (6-14)

5-13

SERVICE
Main Scrub Brush Motor (Cylindrical)

4. Remove belt cover bolts (2) and set cover and hardware aside.

Removing main brush motor
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.
FOR SAFETY: When servicing machine, jack machine
up at designated locations only. Block machine up
with jack stands.
1. Jack front of machine and support using jack stands
or support blocks.

5. Remove belt by turning pulleys and applying outward pressure on the belt.

2. Remove scrub brushes.
3. Enter Manual Mode and lower scrub head completely
(See Manual Mode in the Troubleshooting section of
this manual). Turn key Off immediately when head
touches the floor.

5-14

6. Remove motor mounting hardware (4) and set aside.

T17 Service Information 9020167 (6-14)

SERVICE
7. Remove motor mounting hardware (4) and set aside.

8. Disconnect main brush motor from wire harness and
remove main brush motor.
NOTE: Slide white locking tab inward and then press the
release button.

installing main brush Motor
1. Installation is the reverse of removal.

T17 Service Information 9020167 (6-14)

5-15

SERVICE
Instrument panel

5. Loosen set screws (2) securing instrument panel
mounting tube.

Removing instrument panel
FOR SAFETY: When servicing machine, disconnect battery connections before working on machine.
1. Key Off. Disconnect battery.
2. Remove front access panel.

6. Remove instrument panel assembly.

3. Cut zip tie securing instrument panel wire harness
connections.
4. Disconnect instrument panel connector.
installing instrument panel
1. Installation is the reverse of removal.
2. See Configuration Mode in the troubleshooting
section of this manual to configure the new instrument panel.

5-16

T17 Service Information 9020167 (6-14)

SERVICE
Logic board replacement

4. Attach a wrist static strap tool to a bare metal surface.

Removing Logic board
FOR SAFETY: When servicing machine, disconnect battery connections before working on machine.
1. Key Off. Disconnect batteries.
2. Open RH side access door.

5. Remove logic board mounting screws (2).

3. Remove electrical box cover mounting bolts (2) and
carefully lower the cover.

6. Carefully squeeze to release the plastic mounting
clips securing the logic board to the control box.

T17 Service Information 9020167 (6-14)

5-17

SERVICE
7. Disconnect cables and connectors from logic board.

INstalling Logic board
FOR SAFETY: When servicing machine, disconnect battery connections before working on machine.
1. Attach a wrist static strap tool to a metal surface.

NOTE: Always use two wrenches when securing the power
supply terminals or damage to the circuit board will occur.
Also, make sure the power supply terminals are secured on
the new board before installation. The torque specification
is 30-36 in-lbs (339-407 Ncm).
8. Remove logic board.

5-18

2. Remainder of installation is the reverse of removal.
NOTE: Always use two wrenches when securing the power
supply terminals or damage to the circuit board will occur.
Also, make sure the power supply terminals are secured on
the new board before installation. The torque specification
is 30-36 in-lbs (339-407 Ncm).

T17 Service Information 9020167 (6-14)

SERVICE
Steering wheel timing

5. Align the front drive tire with the centerline of the
machine.

FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.
1. Key Off. Disconnect batteries.
2. Remove front access panel.

6. Orientate the steering wheel as shown below.

3. Loosen steering shaft hardware.

7. Carefully reinstall the steering u-joint onto the
splined steering shaft without changing the orientation of the steering wheel or drive assembly.
NOTE: Check for rotational interference between the hardware and the adjacent pedal assembly. If necessary, raise
the steering u-joint enough to clear the pedal assembly.
4. Lift steering u-joint off splined shaft.

T17 Service Information 9020167 (6-14)

5-19

SERVICE
Wheel drive assembly

4. Remove terminal cover and disconnect cables from
drive assembly.

Removing wheel drive assembly
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine
and remove key.
FOR SAFETY: When servicing machine, jack machine
up at designated locations only. Block machine up
with jack stands.
FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.
1. Key Off. Disconnect batteries.
2. Jack front of machine and support using jack stands
or support blocks and chock rear tires.

5. Remove cable clamp hardware and set aside.
3. Loosen (DO NOT REMOVE) drive assembly socket
head screws (4).
NOTE: Place a spacer block between the drive assembly and
the frame to prevent the drive assembly from rotating while
loosening fasteners.

x4

5-20

T17 Service Information 9020167 (6-14)

SERVICE
6. Jack front of machine up and remove the jack stands.
Place support blocks below both tip legs. The front
wheel must contact the floor.

8. Jack front of machine up, raise jack stands high
enough to allow for drive assembly removal, and
lower machine onto jack stands.

7. Remove drive assembly socket head screws (4) and
set aside.

installing wheel drive assembly
1. Installation is the reverse of removal.
2. Drive assembly socket head screw torque specification: 92 ft-lbs.

x4

T17 Service Information 9020167 (6-14)

5-21

SERVICE
Replacing the drive tire
1. Remove (4) socket head screws.

4.	Replace the drive tire.

2. Remove (10) socket head screws.

3. Use (4) M10-1.5 x 70 (Class 12.9) bolts and a spacer
block to mechanically press off the tire. Tighten the
bolts evenly in a diagonal pattern. REMOVE THE
BOLTS AFTER THIS STEP IS COMPLETE.

5.	 Installation is the reverse of removal. Use a plastic
mallet to reassemble the wheel drive assembly.
Torque M6 hardware to 15Nm (11 ft-lbs) and M8
hardware to 22 Nm (16 ft-lbs).

NOTE: Alternative method - Tap on the wheel using a rubber mallet. This works if the wheel is not stuck on the drive
assembly.

5-22

T17 Service Information 9020167 (6-14)

SERVICE
rear brake adjustment

5. Be sure that parking brake is released. Rear wheel
should spin freely.

FOR SAFETY: Before leaving or servicing machine, stop
on level surface, turn off machine and remove key.
FOR SAFETY: Chock front wheel when jacking rear of
machine to prevent machine from rolling.
FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.
1. Key off. Open main brush doors.
2. Remove rear squeegee and set aside.
6. Loosen jam nut on rear adjustment rod.

3. Place wheel chocks on both sides of the front wheel.
4. Jack rear of machine until rear wheel is off the floor.
7. Turn the adjuster until the wheel stops spinning
freely and then back off two turns.

8. Tighten jam nut and repeat process for other wheel.

T17 Service Information 9020167 (6-14)

5-23

SERVICE
TESTING recovery TANK LEVEL SENSORs

2.	 Test the resistance of the recovery tank level sensor
using an ohmmeter as shown below. The tank level
switch should test at 0-1 ohms or closed.

FOR SAFETY: Before leaving or servicing machine, stop
on level surface.

Ω

1.	 Test the resistance of the recovery tank level sensor
using an ohmmeter as shown below. The tank level
switch should test as “O.L.” or open.

Ω

A

A

B

B

RLT002

RLT001

5-24

Terminals:
1. Power
2. Ground
3. Voltage Output
Specifications:
Thread Size 1/8-27NPT
Input: 8-30 Vdc
Output: 1-5 Vdc

Battery Volta

VDC
T17 Service Information 9020167 (6-14)

SERVICE
3.	 The recovery tank full and half-full sensor conditions
are also viewable in Input Display Mode. See “Input
	Display Mode” in the TROUBLESHOOTING section of
this manual.

I2: Recovery Tank
Full
Closed

RLT003

T17 Service Information 9020167 (6-14)

5-25

SERVICE
TESTING SOLUTION TANK LEVEL SENSOR
FOR SAFETY: Before leaving or servicing machine, stop
on level surface.

2.	Key On. Backprobe solution tank level sensor
connector terminals A and C using a voltmeter as
shown below. The voltmeter should display 1-5 volts
depending on solution tank water level.

1.	Key On. Backprobe solution tank level sensor
connector terminals A and B using a voltmeter as
shown below. The voltmeter should display 10-12
volts.

VDC

VDC

A B C
A B C

A B C
A B C

WIRE

TERMINALS POS.

113/BLK-WHT

B-

A

38/GRY

B +12vdc

B

37/PUR

Vdc Output C

SLT004

WIRE

TERMINALS POS.

113/BLK-WHT

B-

A

38/GRY

B +12vdc

B

37/PUR

Vdc Output C

SLT005

5-26

T17 Service Information 9020167 (6-14)

SERVICE
3.	Drain the solution tank.
4.	 Slowly fill the solution tank with water and compare
the actual voltmeter readings to the chart below.
	Replace the sensor if the values are not within
specification.

Solution Tank Sensor Output
Tank Level

Output Voltage

0 BARS - EMPTY
1 BAR - 20%
2 BARS - 40%
3 BARS - 60%
4 BARS - 80%
5 BARS - FULL

0.0 - 0.72 Volts
0.73 - 0.87 Volts
0.88 - 0.98 Volts
0.99 - 1.11 Volts
1.12 - 1.33 Volts
1.34 + Volts

SLT002

5. The solution tank level sensor output voltage is also
viewable in Input Display Mode. See “Input Display
	Mode” in the TROUBLESHOOTING section.

T17 Service Information 9020167 (6-14)

5-27

SERVICE
TESTING PROPEL MOTOR
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.

3.	 Test the resistance of all three motor windings using
an ohmmeter as shown below. The resistances of each
winding should not be open (O.L). An open winding
indicates a faulty motor.

FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.
1.	Key Off. Remove terminal box cover screws and set
cover aside.

Ω

1.

BET009

W

U

V

Ω

W

U

V

Ω

W

U

V

2.

2.	Disconnect U, V, and W cables from W1, A-, and A+
terminals (respectively).

3.

PMT003

W

U

V

PMT002

5-28

T17 Service Information 9020167 (6-14)

SERVICE
4.	 Test the resistance between all three motor terminals
and the motor case as shown below. The ohmmeter
should read “O.L.” or open. A shorted winding indi
cates a faulty motor.

Ω

1.

W

U

5.	 The motor encoder and temperature sender are
non-serviceable components of the drive motor. The
motor encoder senses rotor position, speed, and
direction. The encoder is integrated into an internal
roller bearing assembly. See “Curtis 1232 LED Faults”
in the TROUBLESHOOTING section for encoder related
faults.
The temperature sender senses the propel motor
temperature. Test the resistance of the temperature
sender using an ohmmeter and then compare the
values to the chart below. Replace the motor
assembly if the resistance values are out of the
specified range.

V

Motor
Casing

YEL

U

3.

2
3

Temperature Sender

Ω

U

4

1

YEL

V

Motor
Casing

W

BLU
RED

6
5

Encoder/Bearing
Assembly

W

BLK

WHT

Ω

2.

V

Motor
Casing
PMT004

T17 Service Information 9020167 (6-14)

Temperature

PMT005

Resistance (Ω)

(°C)

(°F)

MIN.

TYP.

MAX

-30

-22

362

381

368

0

32

464

486

507

25

77

565

588

611

30

86

587

610

633

50

122

679

704

728

70

158

781

806

831

80

176

835

860

885

100

212

950

975

1000

110

230

1007

1036

1064

5-29

SERVICE
3.	Disconnect U, V, and W cables from Curtis 1232
controller as shown below.

TESTING pROPEL mOTOR CABLES
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.

U

FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.

V

1.	Key Off. Disconnect batteries. Remove terminal box
cover screws and set cover aside.

W

BET009

24
13
1

35
23
12

PMT006

4.	Reconnect battery connection and test each cable
using an Ohmmeter for a short to battery + as shown
below. Each cable should test as “O.L.” or open to
battery +. Replace shorted cable(s).
6 Volt
+

6 Volt
-

+

6 Volt
-

+

2.	Disconnect U, V, and W cables from W1, A-, and A+
terminals (respectively).

W

V

+

6 Volt
-

+

6 Volt
-

+

-

Ω

U

U

6 Volt
-

V

PMT002

W

1.
2.
3.
PMT007

5-30

T17 Service Information 9020167 (6-14)

SERVICE
U

W

5.	 Test each cable using an ohmmeter for a short to
battery - as shown below. Each cable should test as
“O.L.” or open to battery -. Replace shorted cable(s).
6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

7.	 Test each cable using an ohmmeter for end-to-end
continuity. Each cable should test between 0-1 ohm
resistance. Replace open cable(s).

6 Volt
-

+

Ω

-

Ω

1.

U

U

2.

V

3.

V

1.

U

2.

W

V

V

3.

W

W

U

V

W

U

V

W

U

W

U

3.

W

PMT010

1.

U

8.	 “Tug test” each cable (motor end) to determine if
a cable is broken inside the insulation. Do not exceed
10 lbs (45 N) of force as cable damage may occur.
	Replace broken cables.

2.

V

W

3.

W

U

U

V

V

W

PMT008

6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6.	 Test each cable using an ohmmeter for a short to
chassis as shown below. Each cable should test as
“O.L.” or open to chassis. Replace shorted cable(s).

-

Ω

1.

10 lbs
(5 kg)

2.
U
V
W

1.

3.

2.
3.

3.

10 lbs
(5 kg)

10 lbs
(5 kg)

CHASSIS

PMT009

T17 Service Information 9020167 (6-14)

PMT011

5-31

SERVICE
3.	Key On. Backprobe the power supply to the throttle
sensor terminals A and D using a voltmeter as shown
below. The voltmeter should display battery voltage.

TESTING THROTTLE SENSOR
FOR SAFETY: Before leaving or servicing machine, stop
on level surface.
FOR SAFETY: When servicing machine, jack machine
up at designated locations only. Block machine up with
jack stands.

VDC

FOR SAFETY: When servicing machine, avoid moving
parts. Do not wear loose jackets, shirts, or sleeves when
working on machine .
1.	Jack machine up so front drive wheel is not touching
the floor. Block machine up with jack stands.

DCB A

2.	 The throttle hall effect sensor is a component of the
pedal subassembly.
DCBA

E

F

D

A
C

TBS001

PIN/CAVITY

5-32

B

NOTES

A

POWER (BATTERY +)

TBS002

COLOR
RED

B

PROPEL OUTPUT (0-5Vdc)

C

NOT USED

YELLOW

D

GROUND (BATTERY -)

E

NOT USED

N/A

F

GATE B

N/A

BLUE
BLACK

T17 Service Information 9020167 (6-14)

SERVICE
4.	Key On. Backprobe the throttle sensor output
terminals B and D using a voltmeter as shown below.
The voltmeter should display 0-5 volts proportional
to 0-100% propel pedal movement.

VDC

DCB A

1. Turn Key Off. D C B A

CONFIG MODE
SELF TEST

TBS003

5.	 See “Propel Diagnostic Mode” in the TROUBLE		
SHOOTING section. The voltage in step 3 should
match the LCD displayed voltage in Propel Diagnostic
	Mode.

MANUAL MODE
INPUT DISPLAY
PROPEL DIAG MODE

P2:Throttle
XXXX.X V
P1:Curtis Online/
Error
P2:Throttle
XXXX.X V
P3:Brake Pedal
On/Off
P4:Direction Fwd/
Rev
TBS004

P5:Speed
XXXX.X Mph
P6:Curtis Temp
XXXX.XC XXXX.XF

T17 Service Information 9020167 (6-14)

P7:Motor Temp
XXXX.XC XXXX.XF
P8:PropelCurrent

5-33

SERVICE
TESTING Side Brush LIFT ACTUATOR
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.
FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.

3.	Reverse polarity and apply battery voltage to the lift
actuator using fuse-protected jumper leads as shown
below. Connect battery - to terminal 1 and battery +
to terminal 2. The actuator should extend completely.
	Replace the actuator if it fails to extend.
6 Volt
+

FOR SAFETY: When servicing machine, avoid moving
parts. Do not wear loose jackets, shirts, or sleeves when
working on machine .

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

10 Amp
Fuse

1.	Key Off. Disconnect the side brush lift actuator from
the wire harness.

1

2

RSLA003

1

2

RSLA001

PIN ASSIGNMENT
2

BLACK

1

BLACK

2.	Apply battery voltage to the lift actuator using
fuse-protected jumper leads as shown below. Be sure
to connect battery + to terminal 1 and battery - to
terminal 2. The actuator should retract completely.
	Replace the actuator if it fails to retract.
6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

10 Amp
Fuse

1

2

RSLA002

5-34

T17 Service Information 9020167 (6-14)

SERVICE
TESTING Main brush LIFT ACTUATOR
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.
FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.

3.	Reverse polarity and apply battery voltage to the lift
actuator using fuse-protected jumper leads as shown
below. Connect battery - to terminal 1 and battery +
to terminal 2. The actuator should extend completely.
	Replace the actuator if it fails to extend.
6 Volt
+

FOR SAFETY: When servicing machine, avoid moving
parts. Do not wear loose jackets, shirts, or sleeves when
working on machine .

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

10 Amp
Fuse

1.	Key Off. Disconnect the main brush lift actuator from
the wire harness.

1

1

2

2

MSLA003

PIN ASSIGNMENT

MSLA001

2

RED

1

BLACK

2.	Apply battery voltage to the lift actuator using
fuse-protected jumper leads as shown below. Be sure
to connect battery + to terminal 1 and battery - to
terminal 2. The actuator should retract completely.
	Replace the actuator if it fails to retract.
6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

10 Amp
Fuse

1

2

MSLA002

T17 Service Information 9020167 (6-14)

5-35

SERVICE
TESTING Rear Squeegee LIFT ACTUATOR
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.
FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.
FOR SAFETY: When servicing machine, avoid moving
parts. Do not wear loose jackets, shirts, or sleeves when
working on machine .
1.	Key Off. Disconnect the rear squeegee lift actuator
from the wire harness.

1

2

3.	Reverse polarity and apply battery voltage to the lift
actuator using fuse-protected jumper leads as shown
below. Connect battery - to terminal 1 and battery +
to terminal 2. The actuator should extend completely.
	Replace the actuator if it fails to extend.
6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

10 Amp
Fuse

1

2

RSLA007

RSLA005

PIN ASSIGNMENT
2

BLUE

1

BROWN

2.	Apply battery voltage to the lift actuator using
fuse-protected jumper leads as shown below. Be sure
to connect battery + to terminal 1 and battery - to
terminal 2. The actuator should retract completely.
	Replace the actuator if it fails to retract.
6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

10 Amp
Fuse

1

2

RSLA006

5-36

T17 Service Information 9020167 (6-14)

SERVICE
TESTING VACUUM FAN
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.
FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.

3.	Apply battery voltage to the vacuum fan(s) using
fuse-protected jumper leads as shown below. The fan
should turn On. Replace the vacuum fan if it fails to
turn On.
6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

25 Amp
Fuse

1.	Key Off. Disconnect vacuum fan from wire harness.

1

2

VFM003

4.	Reconnect vacuum fan(s) to wire harness. See “Manual
	Mode” in the TROUBLESHOOTING section. Activate
the vacuum fan in Manual Mode. The amperage
displayed should be approximately 14-20 Amps (avg.
16 Amps)
VFM004

2.	Key Off. Inspect carbon brushes. Replace carbon
brushes if they are shorter than 10mm (0.375 in).
M04: Vac Fan
00%
XX.XA

T17 Service Information 9020167 (6-14)

5-37

SERVICE

Replacement Carbon Brush Length:
10mm (0.375 in)

TESTING SIDE SWEEP BRUSH MOTOR

6 Volt
+

6 Volt
-

+

-

25 Amp
FOR Carbon
SAFETY: Before
stop
placement
Brush leaving
Length:or servicing machine,
Fuse and
on
level
surface,
set
parking
brake,
turn
off
machine
mm (0.375 in)

6 Volt
6 Volt
6 Volt
6 Volt
3.	Apply
battery
voltage
to
the- side brush motor using
- +
- +
- +
fuse-protected jumper leads as shown below. The side
brush motor should turn On. Replace the side brush
motor if it fails to turn On.

+

remove key.

6 Volt

FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.

+

6 Volt
-

1

1.	Key Off. Disconnect the side brush motor from the
wire harness.

+

6 Volt
-

+

6 Volt
-

+

+

6 Volt
-

+

-

2

10 Amp
Fuse

1
1

6 Volt
-

2

2

SBM003

1

2
6 Volt
+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

6 Volt
-

+

-

SBM001

placement Carbon Brush Length:
PIN ASSIGNMENT
mm (0.375 in)
2
BLACK
1

25 Amp
Fuse

RED

Disk
2.	Key Off. Inspect carbon brushes. Replace carbon
brushes if they are shorter than 10mm (0.375 in).

1

2

Carbon Brush Wear Limit:
10mm (0.39 in)

SBM002

5-38

T17 Service Information 9020167 (6-14)

SERVICE
TESTING ec-H20 PUMP
FOR SAFETY: Before leaving or servicing machine, stop
on level surface.
1.	Key Off. Disconnect ec-H2O pump outlet hose.

5.	Use a stop watch to time how long it takes to fill a 5
gallon bucket. The open flow specification for the
ec-H2O pump is 1.8 GPM. The pump should fill the
5 gallon bucket in approximately 2.7 - 3.0 minutes.
	Replace the pump if it takes longer than 3.5 minutes
and the pump has an adequate water supply.
NOTE: Open flow is different than system flow and should
not be used for scrubbing mode water consumption calculations.

55
50

ECP002

50
40

60

30

10

5

20

10
15

45
40

20
35 30 25

2.	Fill the solution tank.

POFT003

3.	Connect a temporary outlet hose to the pump. The
hose must be long enough to reach a 5 gallon bucket.
Adjusting ec-H2O FLOW RATE
See Configuration Mode in the Troubleshooting section of
this manual.

55
50

50
40

60

30

10

5

20

10
15

45
40

20
35 30 25
POFT002

4.	Enter Manual Mode and enable the ec-H2O system.
See Manual Mode in the Troubleshooting section of
this manual.

T17 Service Information 9020167 (6-14)

5-39

SERVICE
TESTING ec-H2O PRESSURE SWITCH
FOR SAFETY: Before leaving or servicing machine, stop
on level surface, set parking brake, turn off machine and
remove key.

3.	 Test the resistance of the switch using an ohmmeter
6 Volt
6 Volt
6 Volt
6 Volt
6 Volt
6 Volt
between
and
+
- the
+ common
- +
- + normally
- + open
- +terminals.
The switch should test as “O.L.” or open. Replace the
switch if the N.O. contacts are shorted.

Ω

FOR SAFETY: When servicing machine, disconnect battery connection before working on machine.
1.	Key Off. Disconnect the pressure switch from the
wire harness and remove the switch from the
machine.

Common

Normally
Open
ECP004

Normally
Closed

4.	Use a bicycle pump Normally
with pressure gauge to apply
Open
6 Volt to 6
Volt switch
6 Volt
6 Volt below.
6 Volt
pressure
the
as shown
The 6 Volt
+
- +
- W
+
- V+
- +
+
U
1.
normally open contacts should close at 20- +/U
2 psi (1.4 Bar), increasing pressure. Replace the switch
2.
if it does not open correctly.
V

ECP001

3.

W

Ω

6 Volt
6 Volt
6 Volt
6 Volt
6 Volt
6 Volt
2.	 Test
the- resistance
of
the
switch
using
an- ohmmeter
+
+
- +
- +
- +
+
between the common and normally closed terminals.
There should be 0-1 ohms resistance. Replace the
switch if the N.C. contacts are open.

Ω

W

20
15
10

25 30 35

40
45
50
55
60

5
0

3/8” I.D. Tube

PSI

U

V

1.

V

3.
ECP005

Normally
Open

U

ECP003

W

V
Normally
Open

W
U

5-40

V
W

1.
2.
3.

T17 Service
CHASSIS Information 9020167 (6-14)

U

2.
3.

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History Software Agent          : Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0, Adobe InDesign 7.0
History When                    : 2012:05:29 13:11:04.000-05:00, 2012:05:29 13:11:04.000-05:00, 2012:07:18 12:37:00.000-05:00, 2012:08:20 09:18:59.000-05:00, 2012:08:20 09:40:53.000-05:00, 2012:08:20 09:59:11.000-05:00, 2012:08:20 11:22:31.000-05:00, 2012:08:20 11:24:07.000-05:00, 2012:08:20 11:24:30.000-05:00, 2012:08:20 11:26:14.000-05:00, 2012:08:20 11:29:36.000-05:00, 2012:08:20 11:38:19.000-05:00, 2012:08:20 11:41:36.000-05:00, 2012:08:20 12:51:27.000-05:00, 2012:08:20 14:08:43.000-05:00, 2012:08:20 14:13:39.000-05:00, 2012:08:20 14:24:08.000-05:00, 2012:08:20 14:29:47.000-05:00, 2012:08:20 14:46:20.000-05:00, 2012:08:21 07:36:04.000-05:00, 2012:08:21 08:24:48.000-05:00, 2012:08:21 08:57:06.000-05:00, 2012:08:21 09:51:58.000-05:00, 2012:08:21 09:53:01.000-05:00, 2012:08:21 10:36:05.000-05:00, 2012:08:21 11:16:34.000-05:00, 2012:08:21 11:19:11.000-05:00, 2012:08:21 11:38:36.000-05:00, 2012:08:21 11:40:00.000-05:00, 2012:08:22 07:46:27.000-05:00, 2012:08:22 08:44:55.000-05:00, 2012:08:22 08:58:22.000-05:00, 2012:08:22 09:00:55.000-05:00, 2012:08:22 09:31:12.000-05:00, 2012:08:22 09:32:34.000-05:00, 2012:08:22 10:26:21.000-05:00, 2012:08:22 10:26:54.000-05:00, 2012:08:22 10:27:29.000-05:00, 2012:08:22 11:15:10.000-05:00, 2012:08:22 11:17:00.000-05:00, 2012:08:22 12:04:39.000-05:00, 2012:08:22 12:42:18.000-05:00, 2012:08:22 14:09:54.000-05:00, 2012:08:22 14:11:23.000-05:00, 2012:08:22 14:12:41.000-05:00, 2012:08:22 14:58:45.000-05:00, 2012:08:24 08:34:40.000-05:00, 2012:08:24 08:53:07.000-05:00, 2012:08:24 08:53:43.000-05:00, 2012:08:24 08:59:57.000-05:00, 2012:08:24 09:02:36.000-05:00, 2012:08:24 10:35:45.000-05:00, 2012:08:24 10:37:41.000-05:00, 2012:08:24 10:39:32.000-05:00, 2012:08:24 10:40:10.000-05:00, 2012:08:30 13:22:22.000-05:00, 2012:09:28 15:06:22.000-05:00, 2012:11:30 11:52:40.000-06:00, 2012:11:30 12:43:42.000-06:00, 2012:11:30 13:15:14.000-06:00, 2012:11:30 13:23:42.000-06:00, 2012:11:30 13:44:24.000-06:00, 2012:11:30 14:12:27.000-06:00, 2012:11:30 14:27:52.000-06:00, 2012:11:30 14:28:47.000-06:00, 2012:12:03 10:07:20.000-06:00, 2012:12:03 10:25:03.000-06:00, 2012:12:03 10:53:24.000-06:00, 2012:12:03 11:01:41.000-06:00, 2012:12:03 12:26:54.000-06:00, 2012:12:03 12:29:39.000-06:00, 2012:12:27 09:26:05.000-06:00, 2012:12:27 09:29:36.000-06:00, 2012:12:27 11:36:00.000-06:00, 2012:12:27 14:21:41.000-06:00, 2012:12:27 15:01:50.000-06:00, 2012:12:27 15:32:37.000-06:00, 2012:12:28 10:03:48.000-06:00, 2012:12:28 10:43:11.000-06:00, 2012:12:28 10:45:46.000-06:00, 2012:12:28 13:28:56.000-06:00, 2012:12:31 08:30:15.000-06:00, 2013:01:02 13:51:32.000-06:00, 2013:01:23 08:33:59.000-06:00, 2013:01:23 08:50:51.000-06:00, 2013:01:24 14:30:47.000-06:00, 2013:01:24 14:35:28.000-06:00, 2013:01:24 14:36:28.000-06:00, 2013:01:24 14:49:47.000-06:00, 2013:01:24 14:52:28.000-06:00, 2013:01:25 14:41:15.000-06:00, 2013:05:02 07:46:43.000-05:00, 2013:05:02 07:53:50.000-05:00, 2013:05:02 10:04:18.000-05:00, 2013:05:02 10:31:40.000-05:00, 2013:05:02 10:34:11.000-05:00, 2013:05:13 14:25:42.000-05:00, 2013:05:13 14:27:06.000-05:00, 2014:01:10 13:16:19.000-06:00, 2014:01:10 13:16:20.000-06:00, 2014:01:10 13:41:03.000-06:00, 2014:04:30 10:15:21.000-05:00, 2014:04:30 10:16:13.000-05:00, 2014:05:13 14:08:07.000-05:00, 2014:05:13 14:34:59.000-05:00, 2014:05:13 14:36:08.000-05:00, 2014:05:13 14:38:56.000-05:00, 2014:05:13 14:58:58.000-05:00, 2014:05:13 15:01:05.000-05:00, 2014:05:13 15:32:47.000-05:00, 2014:05:14 08:06:34.000-05:00, 2014:05:14 08:08:37.000-05:00, 2014:05:14 08:13:59.000-05:00, 2014:05:14 08:23:37.000-05:00, 2014:05:14 08:24:21.000-05:00, 2014:05:14 08:30:15.000-05:00, 2014:05:14 08:41:11.000-05:00, 2014:05:14 08:41:52.000-05:00, 2014:05:14 10:43:01.000-05:00, 2014:05:14 10:50:55.000-05:00, 2014:05:14 10:53:50.000-05:00, 2014:05:14 10:54:55.000-05:00, 2014:05:14 10:56:10.000-05:00, 2014:05:14 10:57:17.000-05:00, 2014:05:14 11:13:05.000-05:00, 2014:05:14 12:50:43.000-05:00, 2014:05:14 13:46:25.000-05:00, 2014:05:14 15:34:14.000-05:00, 2014:05:14 15:41:48.000-05:00, 2014:05:14 15:42:08.000-05:00, 2014:05:14 15:51:30.000-05:00, 2014:05:14 16:07:59.000-05:00, 2014:05:14 16:14:29.000-05:00, 2014:05:14 16:27:09.000-05:00, 2014:05:16 08:04:58.000-05:00, 2014:05:16 08:31:43.000-05:00, 2014:05:16 08:37:21.000-05:00, 2014:05:16 08:40:46.000-05:00, 2014:05:16 08:55:05.000-05:00, 2014:05:16 09:33:42.000-05:00, 2014:05:16 10:02:44.000-05:00, 2014:05:16 10:04:25.000-05:00, 2014:05:16 10:05:37.000-05:00, 2014:05:16 10:12:59.000-05:00, 2014:05:16 10:33:58.000-05:00, 2014:05:16 10:34:59.000-05:00, 2014:05:16 10:36:31.000-05:00, 2014:05:16 10:39:10.000-05:00, 2014:05:16 10:39:50.000-05:00, 2014:05:16 10:43:28.000-05:00, 2014:05:16 11:01:04.000-05:00, 2014:05:16 11:01:45.000-05:00, 2014:05:16 12:21:43.000-05:00, 2014:05:19 13:01:19.000-05:00, 2014:05:19 13:53:41.000-05:00, 2014:05:19 13:56:28.000-05:00, 2014:05:19 14:04:26.000-05:00, 2014:05:19 14:42:52.000-05:00, 2014:05:19 14:46:46.000-05:00, 2014:05:19 15:30:32.000-05:00, 2014:05:22 15:05:01.000-05:00, 2014:05:22 15:25:42.000-05:00, 2014:05:22 15:37:58.000-05:00, 2014:05:23 14:08:55.000-05:00, 2014:05:23 14:16:32.000-05:00, 2014:05:23 14:18:04.000-05:00, 2014:05:23 14:23:06.000-05:00, 2014:05:23 14:27:26.000-05:00, 2014:05:23 14:41:08.000-05:00, 2014:05:23 14:58:45.000-05:00, 2014:05:23 15:26:05.000-05:00, 2014:05:27 08:26:41.000-05:00, 2014:05:27 08:36:52.000-05:00, 2014:05:27 09:07:43.000-05:00, 2014:05:27 09:43:58.000-05:00, 2014:05:27 10:12:39.000-05:00, 2014:05:27 10:38:31.000-05:00, 2014:05:27 11:10:54.000-05:00, 2014:05:27 11:13:57.000-05:00, 2014:05:27 12:16:27.000-05:00, 2014:05:27 12:22:00.000-05:00, 2014:05:27 12:40:01.000-05:00, 2014:05:27 12:42:18.000-05:00, 2014:05:27 12:44:54.000-05:00, 2014:05:27 12:47:11.000-05:00, 2014:05:27 12:55:42.000-05:00, 2014:05:27 13:07:48.000-05:00, 2014:05:27 14:15:47.000-05:00, 2014:05:27 14:16:12.000-05:00, 2014:05:27 14:17:07.000-05:00, 2014:05:27 14:57:07.000-05:00, 2014:05:27 15:02:52.000-05:00, 2014:05:27 15:04:08.000-05:00, 2014:05:27 15:08:46.000-05:00, 2014:05:27 15:12:55.000-05:00, 2014:05:27 15:28:45.000-05:00, 2014:05:28 07:33:05.000-05:00, 2014:05:28 08:00:07.000-05:00, 2014:05:28 08:19:58.000-05:00, 2014:05:28 08:21:06.000-05:00, 2014:05:28 09:13:33.000-05:00, 2014:05:28 09:13:48.000-05:00, 2014:05:28 09:21:06.000-05:00, 2014:05:28 09:21:37.000-05:00, 2014:05:28 09:22:10.000-05:00, 2014:05:28 10:16:00.000-05:00, 2014:05:28 12:21:43.000-05:00, 2014:05:28 12:25:03.000-05:00, 2014:05:28 12:50:39.000-05:00, 2014:05:28 13:07:21.000-05:00, 2014:05:28 13:09:58.000-05:00, 2014:05:28 13:10:46.000-05:00, 2014:05:28 13:12:01.000-05:00, 2014:05:28 13:52:27.000-05:00, 2014:05:28 13:56:19.000-05:00, 2014:05:28 13:57:50.000-05:00, 2014:05:28 14:01:58.000-05:00, 2014:05:28 14:02:51.000-05:00, 2014:05:28 14:04:01.000-05:00, 2014:05:28 14:12:42.000-05:00, 2014:05:28 14:17:18.000-05:00, 2014:05:28 14:23:20.000-05:00, 2014:05:28 15:29:05.000-05:00, 2014:05:29 07:38:00.000-05:00, 2014:05:29 07:38:15.000-05:00, 2014:05:29 08:13:50.000-05:00, 2014:05:29 08:17:48.000-05:00, 2014:05:29 08:18:31.000-05:00, 2014:05:29 08:31:55.000-05:00
History Changed                 : /;/metadata, /metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata, /;/metadata
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Producer                        : Adobe PDF Library 9.9
Trapped                         : Unknown (false)
Doc Change Count                : 19049
Tags                            : product-category-tag:tennant/en_us/1/machines/scrubbers/scrubbersrider, product-tag:tennant/en_us/1/machines/scrubbers/M-T17
Page Layout                     : SinglePage
Page Mode                       : UseOutlines
Page Count                      : 182
Subject                         : T17 Service Information Manual

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T17 Service Manual Tennant Rider Floor Scrubber

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