T15 Service Manual Tennant Rider Floor Scrubber
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- T15 Service Information Manual
- Safety Precautions
- GENERAL MACHINE INFORMATION
- MAINTENANCE & REPAIR
- Maintenance Checkpoints
- Maintenance Chart
- Lubrication
- Batteries
- Control Panel
- Instrument Panel
- Circuit Breakers
- Directional Control Pedal
- To Replace Taillight Bulb
- Scrub Head
- Cylindrical Brush Drive Belt
- Disc Scrub Head Skirts
- Cylindrical Brush Head Debris Tray
- Scrub Brushes
- Scrub Head Lift Actuator
- Solution System
- Manual Solution Valve
- Solution Solenoid Valve
- FaST System
- ES Pump
- Squeegees
- Rear Squeegee Blades
- Squeegee Lift Actuator
- Vacuum Fan
- Pre-Sweep Brushes
- Pre-Sweep Skirts and Seals
- Pre-Sweep Brush Drive Belt
- Static Drag Strap
- Tires
- Steering
- Seat
- Pushing,Towing,and Transporting the Machine
- Machine Jacking
- Storage Information
- ELECTRICAL
- Electrical Schematic
- Harness Drawings
- Electrical Symbols & Terms
- Key Switch
- Key OFF Power Distribution
- Key START Power Distribution
- Key ON Power Distribution
- Power Up Troubleshooting
- Touch Panel Wiring
- Touch Panel Troubleshooting
- Scrub Brushes ON
- Vacuum Fan(s) ON & Squeegee DOWN
- Vacuum Fan(s) OFF & Squeegee UP
- Vacuum Fan Troubleshooting
- Squeegee Troubleshooting
- Scrub Head DOWN & Conventional Solution Valve ON
- Scrub Head UP
- Forward Propel
- Reverse Propel
- Neutral (No Propel) with Brake Pedal Depressed
- Propel Controller
- Operating Lights
- Horn ON
- Extended Scrub (ES) System ON
- Power Wand ON
- ES System Troubleshooting
- ES Filter Flush Troubleshooting
- Pre-Sweep System ON
- Pre-Sweep Dust Control ON
- FaST System ON
- Battery Charger Troubleshooting
- Machine Control Board Connectors
- Propel Controller Connectors
- Operating & Configuration Modes
T15
*331555*
www.tennantco.com
331555
Rev. 00 (05-2007)
North America / International
The Safe Scrubbing AlternativeR
Service Information Manual
FOR REPLACEMENT PARTS
Identify machine model and serial number.
1. (A) Identify the machine model.
2. (B) Identify the machine serial number from the data plate.
Refer to the TENNANT Parts Manual.
NOTE: Only use TENNANT Company supplied or equivalent parts. Parts and supplies may be ordered
online, by phone, by fax or by mail.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: (800) 553--8033 or (763) 513--2850
www.tennantco.com
Specifications and parts are subject to change without notice.
Copyright E2007TENNANT Company, Printed in U.S.A.
AB
ii T15 331555 (05-2007)
T15 Service Information Manual
Table of Contents
(Page 1 of 3)
T15 331555 (05-2007) iii
page
SAFETY PRECAUTION
S
………………………………...………………………….………………………………
…
vi
GENERAL MACHINE INFORMATIO
N
Component Locator………………………………...………………………….……………………………
…
2 to 11
Touch Panel Detail………………………………...………………………….……………………
…
3
Switches & Circuit Breakers………………………………...………………………….…………
…
4
Specifications………………………………...………………………….…………………………………… 12 to 14
Dimensions & Capacities………………………………...………………………….……………… 12
Performance………………………………...………………………….……………………………
…
12
Power Type………………………………...………………………….……………………………
…
13
Tires………………………………..………………...………………………….……………………
…
13
FaST System………………………………...………………………….……………………………
…
13
Dimensional Drawings………………………………...………………………….…………………
…
14
Basic Troubleshooting………………………………...………………………….…………………………
…
15 to 16
MAINTENANCE & REPAI
R
Maintenance Checkpoints………………………………...………………………….……………………
…
18
Maintenance Chart………………………………...………………………….……………………………
…
19
Lubrication………………………………………………..…...………………………….…………………
…
20
Steering Caster Pivot Bearing………………………………...………………………….………… 20
Rear Squeegee Casters………………………………...………………………….………………
…
20
Steering Gear Chain………………………………...………………………….…………………… 20
Batteries………………………………...…………………...…………………….…………………………
…
21 to 26
Charging Batteries………………………………...………………………….……………………… 22
To Replace Batteries………………………………...………………………….…………………
…
25
Control Panel………………………………...………………………….…………………………………… 27 to 28
To Access Control Panel………………………………...………………………….………………
…
27
Instrument Panel………………………………...………………………….………………………………
…
29 to 36
To Replace Touch Panel………………………………...………………………….………………
…
29
To Replace Circuit Board………………………………...………………………….……………… 34
Circuit Breakers………………………………...………………………….………………………………… 37 to 42
Resetable Circuit Breakers………………………………...………………………….……………
…
37
To Replace Circuit Breaker………………………………...………………………….……………
…
38
Fuses………………………………...………………………….……………………………………. 41
To Replace Fuse………………………………...………………………….………………………
…
41
Directional Control Pedal………………………………...………………………….……………………… 43 to 46
To Replace Propel Motor Controller………………………………...………………………….…
…
44
To Replace Taillight Bulb………………………………...………………………….……………………… 46
Scrub Head………………………………………………...…...………………………….………………… 47 to 65
Scrub Head Links………………………………...………………………….………………………
…
47
To Replace Scrub Head Links………………………………...………………………….… 48
To Remove Disc Scrub Head………………………………...………………………….…………
…
49
To Install Disc Scrub Head………………………………...………………………….……………
…
51
To Replace Disc Scrub Head Brush Motor………………………………...……………………
…
53
To Remove Cylindrical Scrub Head………………………………...………………………….…
…
57
To Install Cylindrical Scrub Head………………………………...………………………….……
…
59
To Replace Cylindrical Scrub Head Brush Motor………………………………...………………
…
61
Cylindrical Brush Drive Belt………………………………...………………………….…………………… 66 to 69
To Replace Brush Drive Belt………………………………...………………………….…………
…
66
Disc Scrub Head Skirts………………………………...………………………….………………………
…
70 to 71
Scrub Head Floor Skirts………………………………...………………………….………………
…
70
To Adjust Disc Scrub Head Skirts………………………………...………………………
…
70
To Replace Disc Scrub Head Skirts………………………………...……………………
…
71
Cylindrical Brush Head Debris Tray………………………………...………………………….…………
…
72 to 75
To Remove Debris Tray………………………………...………………………….………………
…
72
To Install Debris Tray………………………………...………………………….…………………
…
74
To Replace Debris Tray Skirt………………………………...………………………….…………
…
75
Scrub Brushes………………………………...………………………….…………………………………
…
76 to 82
Disc Scrub Brushes………………………………...………………………….……………………
…
76
To Replace Disc Scrub Brushes………………………………...…………………………. 76
Cylindrical Scrub Brushes………………………………...………………………….……………
…
78
To Replace Cylindrical Scrub Brushes………………………………...…………………
…
78
To Check and Adjust Cylindrical Brush Pattern………………………………...………… 80
Scrub Head Lift Actuator………………………………...………………………….………………………
…
83 to 87
To Replace Scrub Head Lift Actuator………………………………...………………………….… 84
T15 Service Information Manual
Table of Contents
(Page 2 of 3)
iv T15 331555 (05-2007)
MAINTENANCE & REPAIR (continued) page
Solution System………………………………...………………………….………………………………
…
88 to 104
Recovery Tank………………………………...………………………….…………………………
…
88
To Remove Recovery Tank………………………………...………………………….…… 89
To Install Recovery Tank………………………………...………………………….………
…
93
Solution Tank………………………………...………………………….…………………………… 96
To Remove Solution Tank………………………………...………………………….……
…
97
To Install Solution Tank………………………………...………………………….………
…
101
Manual Solution Valve………………………………...………………………….…………………………
…
105 to 107
To Replace Solution Valve………………………………...………………………….……………
…
105
Solution Solenoid Valve………………………………...………………………….………………………
…
108 to 110
To Replace Solution Solenoid Valve………………………………...………………………….…
…
108
FaST System………………………………...………………………….…………………………………… 111
FaST Supply Hose Connector………………………………...………………………….………… 111
FaST Solution Filter Screen………………………………...………………………….…………… 111
ES Pump……………………………………………….……...………………………….…………………
…
112 to 114
To Replace ES Pump………………………………...………………………….…………………
…
112
Squeegees………………………………………………………..………………………….………………
…
115 to 122
To Remove Rear Squeegee Assembly………………………………...………………………….
…
115
To Install Rear Squeegee Assembly………………………………...………………………….…
…
117
To Level Rear Squeegee………………………………...………………………….……………… 118
To Adjust Rear Squeegee Blade Deflection………………………………...……………………
…
120
Rear Squeegee Casters………………………………...………………………….………………
…
122
To Adjust Rear Squeegee Guide Roller………………………………...…………………………
.
122
Rear Squeegee Blades………………………………...………………………….………………………
…
123 to 133
To Replace or Rotate Rear Squeegee (Rear) Blade………………………………...…………
…
123
To Replace or Rotate Rear Squeegee (Front) Blade………………………………...…………
…
125
Rear Squeegee Wheel Cams………………………………...………………………….…………
…
128
Rear Squeegee Leveling Knob………………………………...………………………….………
…
128
To Replace Rear Squeegee Lift Cable………………………………...………………………….
…
129
Side Squeegee Blades………………………………...………………………….………………… 132
To Replace Side Squeegee Blades………………………………...……………………… 133
Squeegee Lift Actuator………………………………...………………………….………………………… 134 to 137
To Replace Rear Squeegee Lift Actuator………………………………...………………………
…
135
Vacuum Fan………………………………...………………………….……………………………………. 138 to 143
To Remove Vacuum Fan Assembly………………………………...………………………….…
…
138
To Install Vacuum Fan Assembly………………………………...………………………….……
…
140
To Replace Vacuum Fan………………………………...………………………….………………
…
142
Pre-Sweep Brushes………………………………...………………………….……………………………
…
144 to 149
Pre-Sweep Disk Brushes………………………………...………………………….……………… 144
Replacing the Disk Brushes………………………………...………………………….…… 144
Pre-Sweep Cylindrical Brush………………………………...………………………….…………
…
146
Checking and Adjusting Cylindrical Brush Pattern………………………………...……
…
146
Replacing the Pre-Sweep Cylindrical Brush………………………………...……………
…
148
Pre-Sweep Skirts and Seals………………………………...………………………….…………………
…
150
Pre-Sweep Side Skirts………………………………...………………………….…………………
…
150
Pre-Sweep Recirculation Skirt………………………………...………………………….………… 150
Pre-Sweep Rear Skirt………………………………...………………………….…………………
…
150
Pre-Sweep Brush Drive Belt………………………………...………………………….…………………
…
151
Static Drag Strap………………………………...………………………….………………………………
…
152
Tires……………………………………..……………...………………………….…………………………
…
152 to 178
Rear Tires and Wheels………………………………...………………………….………………… 153
To Remove Rear Tire………………………………...………………………….…………
…
153
To Install Rear Tire………………………………...………………………….……………
…
154
To Replace Rear Wheel Bearings………………………………...………………………
…
155
Front Tire and Wheel………………………………...………………………….…………………
…
157
Front Wheel Support Caster Bearing Assembly………………………………...………
…
157
To Remove Front Drive Assembly………………………………...………………………
…
157
To Install Front Drive Assembly………………………………...………………………….
…
159
Propel Motor Service………………………………...………………………….…………… 160
General information………………………………...………………………….……
…
160
Terminal Connections………………………………...………………………….…
…
161
Electric Brake Disassembly………………………………...………………………
…
162
Brake Disk Replacement………………………………...………………………….
…
166
Tire Replacement………………………………...………………………….………
…
167
Commutator Brush Replacement………………………………...………………… 171
To Replace Drive Assembly Caster Bearing and Thrust Washers……………………
…
174
To Replace Drive Assembly Pivot Cone Bearing………………………………...………
…
177
T15 331555 (05-2007) v
T15 Service Information Manual
Table of Contents
(Page 3 of 3)
MAINTENANCE & REPAIR (continued) page
Steering……………………………………………………………….…...………………………….……… 179 to 189
To Adjust Steering Chain………………………………...………………………….……………… 179
To Replace Steering Chain………………………………...………………………….……………
…
180
To Replace Large Steering Sprocket………………………………...………………………….… 181
To Replace Small Steering Sprocket………………………………...………………………….… 182
To Replace Steering Housing Bearings………………………………...…………………………
.
184
To Replace Steering U-joint………………………………...………………………….…………… 188
Seat………………………………………………………...………………………….……………………… 190 to 193
Operator Seat………………………………...………………………….…………………………… 190
To Remove Seat Assembly………………………………...………………………….……
…
190
To Install Seat Assembly………………………………...………………………….………
…
192
To Adjust Seat Position………………………………...………………………….………
…
193
Pushing,Towing,and Transporting the Machine………………………………...………………………
…
194 to 196
Pushing or Towing the Machine………………………………...………………………….………
…
194
Transporting the Machine………………………………...………………………….……………
…
194
Machine Jacking………………………………...………………………….………………………………
…
196
Storage Information………………………………...………………………….……………………………
…
197
Freeze Protection………………………………...………………………….………………………
…
197
ELECTRICA
L
Electrical Schematics………………………………...………………………….…………………………
…
200 to 202
Harness Drawings………………………………...………………………….……………………………… 203 to 210
Electrical Symbols & Terms………………………………...………………………….…………………
…
211
Key Switch………………………………...………………………………………...……………….………
…
212
Key OFF Power Distribution………………………………...………………………….…………………
…
213
Key START Power Distribution………………………………...………………………….………………
…
214
Key ON Power Distribution………………………………...………………………….……………………
…
215
Power Up Troubleshooting………………………………...………………………….……………………
…
216
Touch Panel Wiring………………………………...………………………….……………………………
…
217
Touch Panel Troubleshooting………………………………...………………………….………………… 218
Scrub Brushes ON………………………………...………………………….……………………………
…
219
Vacuum Fan(s) ON & Squeegee DOWN………………………………...………………………….……
…
220
Vacuum Fan(s) OFF & Squeegee UP………………………………...………………………….………
…
221
Vacuum Fan Troubleshooting………………………………...………………………….………………… 222
Squeegee Troubleshooting………………………………...………………………….…………………… 224
Scrub Head DOWN & Conventional Solution Valve ON………………………………...………………
…
226
Scrub Head UP………………………………...………………………….…………………………………
…
227
Forward Propel………………………………...………………………….…………………………………
…
228
Reverse Propel………………………………...………………………….…………………………………
…
229
Neutral (No Propel) with Brake Pedal Depressed………………………………...……………………
…
230
Propel Controller………………………………...………………………….………………………………
…
231 to 233
Diagnostics and Troubleshooting………………………………...………………………….……
…
231
Operating Lights………………………………...………………………….………………………………
…
234
Horn ON……………………………………………………...……...………………………….……………
…
234
Extended Scrub (ES) System ON………………………………...………………………….……………
…
235
Power Wand ON………………………………...………………………….………………………………
…
235
ES System Troubleshooting………………………………...………………………….…………………
…
236 to 237
ES Filter Flush Troubleshooting………………………………...………………………….……………… 238
Pre-Sweep System ON………………………………...………………………….………………………
…
239
Pre-Sweep Dust Control ON………………………………...………………………….…………………
…
240
FaST System ON………………………………...………………………….………………………………
…
241
Battery Charger Troubleshooting………………………………...………………………….……………
…
242 to 246
Machine Control Board Connectors………………………………...………………………….…………
…
247
Propel Controller Connectors………………………………...………………………….…………………
…
248
Operating & Configuration Modes………………………………...………………………….……………
…
249 to 260
Normal Mode………………………………...………………………….……………………………
…
250
Self-Test Mode………………………………...………………………….…………………………
…
252
Error Codes………………………………...………………………….……………………
…
253
Troubleshooting………………………………...………………………….………………… 254
Manual Mode………………………………...………………………….……………………………
…
256
Enable/Disable Chart………………………………...………………………….…………
…
257
Input Display Mode………………………………...………………………….……………………
…
258
Restricted Down Pressure Mode………………………………...………………………….……
…
259
Software Revision Date Display Mode………………………………...………………………….
…
260
vi T15 331555 (05-2007)
SAFETY PRECAUTIONS
The following symbols 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.
This machine is designed solely for scrubbing dirt
and dust in an indoor environment. Tennant does
not recommend using this machine in any other
environment.
The following information signals potentially
dangerous conditions to the operator or
equipment. Read this manual carefully. Know
when these conditions can exist. Locate all safety
devices on the machine. Then, take necessary
steps to train machine operating personnel.
Report machine damage or faulty operation
immediately. Do not use the machine if it is not in
proper operating condition.
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 pickup.
FOR SAFETY:
1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operation manual is read and
understood.
-- With brake disabled.
-- In flammable or explosive areas unless
designed for use in those areas.
2. Before starting machine:
-- Make sure all safety devices are in
place and operate properly.
-- Check brakes and steering for proper
operation (if so equipped).
3. When using machine:
-- Go slow on inclines and slippery
surfaces.
-- Use care when backing machine.
-- Follow mixing and handling
instructions on chemical containers.
4. Before leaving or servicing machine:
-- Stop on level surface.
-- Turn off machine and remove key.
5. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves when
working on machine.
-- Block machine tires before jacking
machine up.
-- Jack machine up at designated
locations only. Block machine up with
jack stands.
-- Use hoist or jack that will support the
weight of the machine.
-- Wear eye and ear protection when
using pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Use Tennant supplied or equivalent
replacement parts.
6. When loading/unloading machine
onto/off truck or trailer.
-- Turn off machine.
-- Use truck or trailer that will support
the weight of the machine.
-- 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.
T15 Safety Precautions
T15
GENERAL
MACHINE
INFORMATION
1
G
T15 331555 (05-2007)
T15 Component Locator
(page 1 of 10)
F
R
O
N
T
FRONT
IGNITION SWITCH S1
EMERGENCY
STOP SWITCH S2
HOUR METER
TOUCH PANEL
BRAKE PEDAL &
BRAKE SWITCH SW2 THROTTLE PEDAL &
THROTTLE SENSOR
SWITCH & CIRCUIT
BREAKER PANEL
PRE-SWEEP
SWITCHES S10 & S11
F
R
ON
T
G
2 T15 331555 (05-2007)
Touch Panel Detail
A. Battery discharge indicator
B. Recovery tank full indicator
C. FaST/ES enabled indicator
D. FaST/ES ON/OFF button
E. Squeegee/Vacuum Fan indicator
F. Squeegee/Vacuum Fan ON/OFF button
G. Scrub Head Pressure indicator
H. Scrub System ON/OFF button
AB
C
D
E
F
G
H
T15 Component Locator
(page 2 of 10)
G
T15 331555 (05-2007) 3
Switches & Circuit Breakers
A D
BCF
L K JGHI
M N
A. CB7 – 20 Amp Circuit Breaker – Single Vacuum Fan (or)
40 Amp Circuit Breaker – Dual Vacuum Fans (option)
B. S7 – Horn Button
C. S8 – Operating Lights Switch
D. S6 – Power Wand Switch (option)
E. CB1 – 10 Amp Circuit Breaker – Machine Power
F. CB2 – 10 Amp Circuit Breaker – Battery Discharge Indicator
G. CB6 – 15 Amp Circuit Breaker – Machine Control Board & Touch Panel
H. CB5 – 10 Amp Circuit Breaker – Horn
I. CB4 – 10 Amp Circuit Breaker – Scrub Head Actuator, Back Up
Alarm (option) and Power Wand (option)
J. CB3 – 15 Amp Circuit Breaker – Operating Lights
K. CB9 – 30 Amp Circuit Breaker – Left Disk Scrub Brush Motor (or)
Rear Cylindrical Scrub Brush Motor
L. CB8 – 30 Amp Circuit Breaker – Right Disk Scrub Brush Motor (or)
Front Cylindrical Scrub Brush Motor
M. S11 – Pre-Sweep Dust Control Switch (option)
N. S10 – Pre-Sweep System ON/OFF Switch (option)
E
T15 Component Locator
(page 3 of 10)
G
4 T15 331555 (05-2007)
P
O
Q
Switches & Circuit Breakers
T15 Component Locator
(page 4 of 10)
O. CB11 – 10 Amp Circuit Breaker – FaST System
P. CB10 – 25 Amp Circuit Breaker – Pre-Sweep System (option)
Q. CB12 – 10 Amp Circuit Breaker – Pre-Sweep Side Brush(es) (option)
G
T15 331555 (05-2007) 5
FRONT
T15 Component Locator
(page 5 of 10)
F
R
O
NT
MACHINE
CONTROL BOARD
FRONT CHANNEL
(INSIDE VIEW)
ELECTRICAL PANEL
(INSIDE VIEW)
PROPEL
CONTROLLER
HORN SWITCH S7
PROPEL
CONTROLLER
OPERATING LIGHTS
SWITCH S8
POWER WAND
SWITCH S6
CIRCUIT
BREAKERS
CB1, CB2,
CB3, CB4,
CB5, CB6,
CIRCUIT
BREAKERS
CB7, CB8,
CB9
MAIN CONTACTOR M1
CIRCUIT
BREAKER CB10
FUSE FU1
VACUUM FAN
CONTACTOR M2
BRUSH
CONTACTOR M3
CIRCUIT
BREAKER CB11
G
6 T15 331555 (05-2007)
T15 Component Locator
(page 6 of 10)
BATTERIES
SEAT SWITCH S3
SCRUB HEAD
ACTUATOR
FaST WATER
PUMP
FaST WATER
PRESSURE SWITCH
FaST SOLENOID
VALVE
FaST DETERGENT
PUMP
FaST AIR PUMP
PROPEL MOTOR
ELECTRIC BRAKE
SOLENOID
FRONT
F
R
O
N
T
VIEWED UNDER MACHINE
(BEHIND SCRUB HEAD)
F
R
O
N
T
G
T15 331555 (05-2007) 7
RIGHT SCRUB
BRUSH MOTOR
FR
O
N
T
BRUSH MOTORS
SHUNT (MIDDLE REAR
OF SCRUB HEAD)
T15 Component Locator
(page 7 of 10)
CYLINDRICAL
SCRUB HEAD
DISK SCRUB
HEAD
FRONT SCRUB
BRUSH MOTOR
REAR SCRUB
BRUSH MOTOR
BRUSH MOTORS
SHUNT
LEFT SCRUB
BRUSH MOTOR
FRON
T
F
RO
NT
VACUUM FAN
MOTOR(S)
G
8 T15 331555 (05-2007)
RECOVERY TANK FULL
FLOAT SWITCH S4
FR
ONT
RECOVERY TANK HALF
FULL FLOAT SWITCH S5
SOLUTION TANK FULL
FLOAT SWITCH S9
T15 Component Locator
(page 8 of 10)
ES PUMP
FR
O
N
T
F
R
O
N
T
G
T15 331555 (05-2007) 9
CONVENTIONAL
SOLUTION VALVE
T15 Component Locator
(page 9 of 10)
SQUEEGEE
ACTUATOR
POWER
WAND PUMP
FRONT
F
R
O
NT
F
R
O
N
T
G
10 T15 331555 (05-2007)
T15 Component Locator
(page 10 of 10)
PRE-SWEEP
COMPONENTS
HORN (BEHIND
HEADLIGHT)
F
R
O
N
T
F
R
O
N
T
FLASHING
LIGHT
BACK-UP ALARM
FR
O
N
T
G
T15 331555 (05-2007) 11
GENERAL MACHINE DIMENSIONS/CAPACITIES
Item Dimension/capacity
Length 1830 mm (72 in)
Length (with Pre--Sweep) 2465 mm (97 in)
Width (less squeegee) 1025 mm (40.25 in)
Width (with squeegee) 1155 mm (45.5 in)
Height 1360 mm (53.5 in)
Height with overhead guard 2030 mm (80 in)
Disk brush diameter for side brush (option) 460 mm (18 in)
Disk brush diameter for Pre--Sweep (option) 380 mm (15 in)
Disk brush diameter for 700 mm (28 in) scrub head 355 mm (14 in)
Disk brush diameter for 900 mm (36 in) scrub head 460 mm (18 in)
Cylindrical sweep brush diameter for Pre--Sweep (option) 155 mm (6 in)
Cylindrical sweep brush length for Pre--Sweep (option) 810 mm (32 in)
Cylindrical scrub brush diameter 155 mm (6 in)
Cylindrical brush length for 700 mm (28 in) scrub head 700 mm (28 in)
Cylindrical brush length for 900 mm (36 in) scrub head 900 mm (36 in)
Squeegee width for 700 mm (28 in) scrub head 950 mm (37.5 in)
Squeegee width for 900 mm (36 in) scrub head 1155 mm (45.5 in)
Scrubbing path width for 700 mm (28 in) scrub head 710 mm (28 in)
Scrubbing path width for 900 mm (36 in) scrub head 915 mm (36 in)
Solution tank capacity 170 L (45 gallons)
Recovery tank capacity 210 L (55 gallons)
GVWR 1134 Kg (2500 lbs)
GENERAL MACHINE PERFORMANCE
Item Measure
Aisle turnaround width 2080 mm (82 in)
Aisle turnaround width (with Pre--Sweep) 2770 mm (109 in)
Travel Speed 9.6 Km (6 mph)
Maximum rated climb and descent angle for transport 8_@ gross weight
Maximum rated climb and descent angle for scrubbing 4_
Maximum rated climb and descent angle for trailering 11_
T15 Specifications
(page 1 of 3)
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12 T15 331555 (05-2007)
POWER TYPE
Type Quantity Volts Ah Rating Weight
Batteries 6 6 235 @ 20 hr rate 30 kg (67 lb)
6 6 335 @ 20 hr rate 47 kg (104 lb)
Type Use VDC kW (hp)
Electric Motors Pre--Sweep brush (disk) 36 0.20 (0.25)
Pre--Sweep brush (cyl) 36 0.45 (0.60)
Scrub brush (disk) 36 055 (075)Scrub brush (disk) 36 0.55 (0.75)
Scrub brush (cylindrical) 36 0.55 (0.75)
Vacuum fan 36 06(08)Vacuum fan 36 0.6 (0.8)
Propelling 36 11(15)Propelling 36 1.1 (1.5)
Type VDC amp Hz Phase VAC
Chargers (Smart) 36 21 45--65 185--265
TIRES
Location Type Size
Front (1) Solid 100 mm wide x 305 mm OD (4 in wide x 12 in OD)
Rear (2) Solid 90 mm wide x 305 mm OD (3.5 in wide x 12 in OD)
FaST SYSTEM
Item Measure
Solution pump 36 Volt DC, 5A, 5.7 LPM (1.5 GPM) open flow,
45 psi bypass setting
Solution flow rate 1.1LPM(0.30GPM)
Detergent to water dilution ratio 1:1000
Detergent flow rate 1.14 CC/Minute (0.038 Ounces/Minute)
T15 Specifications
(page 2 of 3)
G
T15 331555 (05-2007) 13
TOP VIEW
SIDE VIEW
2030 mm
(80.0 in)
1360 mm
(53.5 in)
+
--
921 mm
(36.25 in)
1155 mm
(45.5 in)
1092 mm
(43.0 in)
1830 mm
(72.0 in)
1025 mm
(40.25 in)
1025 mm
(40.35 in)
405 mm
(16.0 in)
810 mm
(32.0 in)
FRONT VIEW
915 mm
(36.0 in)
350790
MACHINE DIMENSIONS
T15 Specifications
(page 3 of 3)
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14 T15 331555 (05-2007)
Problem Cause Remedy
Poor sweeping performance Worn brush bristles Replace brushes
Sweeping brushes not adjusted Adjust brushes
Hopper full Empty hopper
Hopper skirts worn or damaged Replace skirts
Brush drive failure Check with TENNANT
representative for advice
Trailing water -- poor or no water
pickup
Worn squeegee blades Rotate or replace squeegee
blades
Squeegee out of adjustment Adjust squeegee
Vacuum hose clogged Flush vacuum hoses
Vacuum fan inlet filter dirty Clean inlet filter
Debris caught on squeegee Remove debris
Vacuum hose to squeegee or
recovery tank disconnected or
damaged
Reconnect or replace vacuum
hose
Tank cover not completely closed Check for obstructions
Torn seals on recovery tank Replace seals
Vacuum fan will not turn on Recovery tank full Drain recovery tank
Foam filling recovery tank Empty recovery tank
g
y
Use less or change detergent
Use a defoamer
Vacuum fan circuit breaker
tripped
Reset circuit breaker
Littleornosolutionflowtothe
floor
Solution tank empty Fill solution tank
Solution control rod broken or out
of adjustment
Replace and/or adjust rod
Solution flow turned off Turn solution flow on
Solution supply lines plugged Flush solution supply lines
Solution solenoid clogged or
stuck
Clean or replace
ES mode (option): ES switch off Turn ES switch on
Poor scrubbing performance Debris caught on scrub brushes Remove debris
Improper detergent or brush
used
Check with TENNANT
representative for advice
Worn scrub brush(es) Replace scrub brush(es)
Scrub brush motor circuit
breaker(s) tripped
Reset circuit breaker(s)
Reduce scrub brush down
pressure
Uneven brush pressure, level
scrub head
Broken brush drive belts on
cylindrical scrub head, replace
belt
Check with TENNANT
representative for advice
Low battery charge Charge batteries until the charger
automatically turns off
T15 Basic Troubleshooting
(Page 1 of 2)
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T15 331555 (05-2007) 15
Problem Cause Remedy
FaST System does not operate FaST switch is turned off Turn on the FaST switch.
yp
FaST circuit breaker tripped Determine cause and reset the
15A circuit breaker button
Clogged FaST PAK supply hose
and/or connector
Soak connector and hose in
warm water and clean
FaST PAK carton is empty or not
connected
Replace FaST PAK carton and/or
connect supply hose
FaST system is not primed To prime, operate the FaST
solution system for 5 to 10
minutes.
Clogged flow control
orifice/screen
Remove and clean orifice/screen
Faulty pump Contact Tennant representative
Clogged filter screen Drain solution tank, remove and
clean filter screen
Faulty detergent timer module Contact Tennant representative
T15 Basic Troubleshooting
(Page 2 of 2)
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16 T15 331555 (05-2007)
Information
NOTE: Troubleshooting charts may be shown with optional equipment.
The optional equipment may not be specified in these charts. Some machines
may not be equipped with all components shown.
BEFORE CONDUCTING TESTS:
DURING TESTS:
* Read and Follow ALL Safety Warnings and Precautions as
mentioned at the beginning of this manual
* Always use an ESD (Electrostatic Discharge) strap when working
near the Control Board
* Be cautious when working near Control Board – Battery voltage is
always present, even with Key OFF
* Always unhook Battery when removing or replacing components
* Call Technical Services if Diagnostic Time Exceeds One Hour With
Unknown Cause or Course of Action
T15
MAINTENANCE
& REPAIR M
T15 331555 (05-2007) 17
1
2
23
4
1
15
5
6
7
8
9
10
10
11
13
12
14
16
16
17
18
350790
Maintenance Checkpoints
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18 T15 331555 (05-2007)
Interval Key Description Procedure
Lubricant/
Fluid
No. of
Service
Points
Daily 1Side and rear squeegees Check for damage and wear -- 3
y
2Scrub brushes Check for damage, wear, debris -- 2
8Recovery tank Clean tank -- 1
8Recovery tank, ES mode Clean ES filter -- 1
7Solution tank, ES mode Clean solution supply filter -- 1
9Vacuum fan inlet filter Clean -- 1
-- Machine Check for leaks -- 3
11 Cylindrical brushes only:
debris trough
Clean -- 1
12 Pre--Sweep brushes Check for damage and wear -- 2
12 Pre--Sweep debris hopper Clean -- 1
17 FaST PAK supply hose and
connector
Clean and connect hose to
storing plug when not in use
-- 1
50 Hours 15 Pre--Sweep cylindrical
brushes
Check taper -- 1
5Cylindrical scrub brushes Check taper and rotate front to
rear
-- 2
10 Squeegee caster wheels
and pivot points
Lubricate SPL 4
4Battery cells Check electrolyte level DW 3
1Side and rear squeegees Check deflection and leveling -- 6
14 Pre--Sweep skirts and
seals
Check for damage and wear -- 4
18 FaST/Solution filter screen Clean -- 1
100 Hours 5Cylindrical scrub brush drive
belts
Check tension and wear -- 2
13 Pre--Sweep brush drive belts Check tension and wear -- 2
3Steering caster pivot bearing Lubricate SPL 1
200 Hours 4Battery terminals and cables HCheck and clean -- 12
6Steering gear chain Lubricate GL 1
500 Hours 9Vacuum fan motor(s) Check motor brushes -- 1
Steering gear chain HCheck deflection -- 1
1000 5Brush drive motors Check motor brushes -- 2(4)
Hours 6Propelling motor Check motor brushes -- 1
16 Rear wheel nuts HTorque wheel nuts -- 3
LUBRICANT/FLUID
DW Distilled water....
SPL Special lubricant, Lubriplate EMB grease (TENNANT part no. 01433--1)...
GL SAE 90 weight gear lubricant....
NOTE: Also check procedures indicated (H) after the first 50 hours of operation.
Maintenance Chart
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LUBRICATION
STEERING CASTER PIVOT BEARING
The steering caster bearing is located on the
floorplate. Lubricate with Lubriplate EMB grease
(TENNANT part no. 01433--1) every 100 hours.
REAR SQUEEGEE CASTERS
The rear squeegee casters are located on the
back side of the rear squeegee. The rear
squeegee casters each have two grease fittings.
Lubricate the pivot point and caster bearing on
each squeegee caster with Lubriplate EMB
grease (TENNANT part no. 01433--1) every 50
hours.
STEERING GEAR CHAIN
The steering gear chain is located directly above
the front tire.
Lubricate with SAE 90 weight gear lubricant every
200 hours of use.
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BATTERIES
The batteries are designed to hold their power for
long periods of time. The lifetime of the batteries
is limited to number of charges the batteries
receive. To get the most life from the batteries,
recharge them immediately when the battery
discharge indicator begins to blink.
After every 200 hours of use check for loose
battery connections and clean the surface of the
batteries, including terminals and cable clamps,
using a strong solution of baking soda and water.
Brush the solution sparingly over the battery tops.
Do not allow any baking soda solution to enter the
batteries. Use a wire brush to clean the terminal
posts and the cable connectors. Wipe off all
cleaning solution residue. After cleaning, apply a
coating of clear battery post protectant to the
terminals and the cable connectors. Keep the tops
of the batteries clean and dry.
Objects made of metal can potentially short circuit
the batteries. Keep all metallic objects off the
batteries. Replace any worn or damaged wires.
Check the electrolyte level in each battery cell
before and after charging, and after every 50
hours of operation. Do not charge the batteries
unless the fluid is slightly above the battery plates.
If needed, add just enough distilled water to cover
the plates. Never add acid to the batteries. Do not
overfill. Always keep the battery caps on, except
when adding water or taking hydrometer readings.
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Using a hydrometer, measure the specific gravity
to determine the charge level and condition of the
batteries. If one or more of the battery cells test
lower than the other battery cells (0.050 or more),
the cell is damaged, shorted, or is near failure.
Completely recharge the batteries, then retest
them.
NOTE: Do not take readings immediately after
adding distilled water. If the water and acid are not
thoroughly mixed, the readings may not be
accurate. Check the hydrometer readings against
the following chart to determine the remaining
battery charge level:
SPECIFIC GRAVITY BATTERY
at 27_C(80_F) CHARGE
1.265 100% Charged
1.223 75% Charged
1.185 50% Charged
1.148 25% Charged
1.110 Discharged
NOTE: If the readings are taken when the battery
electrolyte is any temperature other than 27 C (80
F), the reading must be temperature corrected.
Add or subtract to the specific gravity reading
0.004, 4 points, for each6C(10F)above or
below 27 C (80 F).
CHARGING THE BATTERIES
1. Drive the machine to a flat, dry surface.
NOTE: Make sure the area is well ventilated.
2. Turn the machine power off.
FOR SAFETY: Before leaving or
servicing machine, stop on level
surface, turn off machine, and remove
key.
3. Lift the operator seat to access the batteries.
The support arm automatically engages
when the seat is lifted all the way up.
4. Check the water level in all battery cells.
04380
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22 T15 331555 (05-2007)
If the level is low, add just enough distilled
water to cover the plates. DO NOT
OVERFILL. The batteries can overflow
during charging due to expansion.
NOTE: Make sure the battery caps are in place
while charging.
FOR SAFETY: When maintaining or
servicing machine, avoid contact with
battery acid.
5. Unplug the machine connector from the
batteries.
6. Plug the charger connector into the battery
connector.
WARNING: Batteries emit hydrogen
gas. Explosion or fire can result. Keep
sparks and open flame away. Keep
covers open when charging.
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7. Plug the battery charger into the wall outlet.
NOTE: Refer to the instructions provided by the
charger manufacturer for more detailed
information.
8. The TENNANT charger will start
automatically. When the batteries are fully
charged, the TENNANT charger will
automatically turn off.
9. After the charger has turned off, unplug the
charger from the wall outlet.
10. Unplug the charger connector from the
battery connector on the machine.
FOR SAFETY: When maintaining or
servicing machine, avoid contact with
battery acid.
11. Connect the battery connector to the
machine connector.
12. Check the electrolyte level in each battery
cell after charging. If needed, add distilled
water to raise the electrolyte level to about
12 mm (0.40 in) below the bottom of the
sight tubes.
13. Lower the seat support by slightly raising it
while pushing the support arm inward.
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TO REPLACE BATTERIES
1. Drive the machine to a flat, dry surface.
NOTE: Make sure the area is well ventilated.
2. Turn the machine power off.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
3. Lift the operator seat to access the batteries.
The support arm automatically engages
when the seat is lifted all the way up.
4. Un--plug the battery connector from in front
of the solution tank.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
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5. Pull the rubber battery cable boots back to
access the cable end nuts.
6. Remove all of the battery cables.
7. Use the built--in straps to lift and remove
each battery.
8. Use a solution of baking soda and water to
clean the battery compartment area.
9. Install the new batteries in the same
orientation as the old batteries.
10. Reconnect all of the battery cables.
11. Check the batteries and charge if necessary.
See TO CHARGE BATTERIES instructions.
12. Reconnect the battery connector at the front
of the solution tank.
13. Lower the seat support and operate the
machine. Check for proper operation.
--
+
-- +
--
+
--
+
--
+
--
+
FRONT OF
MACHINE
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CONTROL PANEL
The control panel houses the directional
controller, relays, contactors, and fuses. These
components can be accessed by pivoting the
control panel mount plate down against the seat
support.
TO ACCESS CONTROL PANEL
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Lift the operator seat to access the batteries.
The support arm automatically engages
when the seat is lifted all the way up.
2. Un--plug the battery connector from in front
of the solution tank.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
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3. Lower the seat support.
4. Remove the two screws at the top of the
control panel mount plate.
5. Pivot the mount plate down until it is resting
against the seat support.
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INSTRUMENT PANEL
The instrument panel consists of a touch panel,
circuit board, switches, and circuit breakers. The
touch panel controls various machine functions.
The indicator lights keep the operator informed on
machine performance.
TO REPLACE TOUCH PANEL
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Open the control panel. See TO ACCESS
CONTROL PANEL instructions.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
2. Locate the circuit board cover on the inside,
front wall of the steering support, behind the
control panel.
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3. Remove the six nuts holding the circuit
board cover onto the frame.
4. Pull the circuit board cover back to access
the circuit board.
5. Un--plug the two ribbon cables from the
circuit board.
6. Locate the four touch panel lock clips on the
under side of the dash panel. Remove the
lock clips.
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7. Pull the touch panel bezel up and remove
from the machine.
8. Remove the touch panel from the machine.
NOTE: Be careful when removing the ribbon
cables from the slot in the dash panel.
9. Position the new touch panel on the
machine. Route the ribbon cable through the
slot in the dash panel.
10. Place the touch panel bezel over the touch
panel. Line up the posts on the bezel with
the mount holes in the dash panel.
11. Install the four lock clips on the bezel posts.
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12. Connect the ribbon cables to the circuit
board.
13. Position the circuit board cover back up to
the inside, front wall of the steering support,
behind the control panel.
14. Reinstall the six nuts on the circuit breaker
cover. Hand tighten lightly.
15. Pivot the control panel back in position.
Reinstall the two screws and tighten to
18 -- 24 Nm (15 -- 20 ft lb).
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16. Lift the operator seat and reconnect the
battery connector at the front of the solution
tank.
17. Close the seat support. Start the machine
and check for proper operation.
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T15 331555 (05-2007) 33
TO REPLACE CIRCUIT BOARD
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Open the control panel. See TO ACCESS
CONTROL PANEL instructions.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
2. Locate the circuit board cover on the inside,
front wall of the steering support, behind the
control panel.
3. Remove the six nuts holding the circuit
board cover on the frame.
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34 T15 331555 (05-2007)
4. Pull the circuit board cover back to access
the circuit board.
5. Un--plug the two ribbon cables from the
circuit board.
6. Un--plug the three wire connectors from the
circuit board.
7. Pop the circuit board off the six plastic
stand--offs. Remove the circuit board from
the machine. Note the orientation of the
circuit board.
8. Position the new circuit board on the six
plastic stand--offs. Gently push the board
down until the stand--off snaps in place.
9. Reconnect the three wire connectors and
two ribbon cables to the new circuit board.
See schematic in this section.
10. Position the circuit board cover back up to
the inside, front wall of the steering support,
behind the control panel.
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11. Reinstall the six nuts on the circuit board
cover. Hand tighten lightly.
12. Pivot the control panel back in position.
Reinstall the two screws and tighten to
18 -- 24 Nm (15 -- 20 ft lb).
13. Lift the operator seat and reconnect the
battery connector at the front of the solution
tank.
14. Close the seat support. Start the machine
and check for proper operation.
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CIRCUIT BREAKERS
RESETABLE CIRCUIT BREAKERS
Circuit breakers are resetable 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.
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 circuit breakers are located on the operator
console.
The chart below shows the circuit breakers and
the electrical components they protect.
Dual Vacuum Fans40 A
Battery Discharge Indicator10 ACB2
Machine Power10 ACB1
Operating Lights15 ACB3
Sweep Head Actuator, Back-up
Alarm, Power Wand
10 ACB4
Horn10 ACB5
Machine Control Board, Touch
Panel, Side Brush
15 ACB6
Left (disk) or Rear (cylindrical)
Scrub Brush Motor
25 ACB9
Pre-Sweep System25 ACB10
FaST System10 ACB11
Pre-Sweep Side Brush(es)10 ACB12
Right (disk) or Front (cylindrical)
Scrub Brush Motor
25 ACB8
Single Vacuum Fan20 A
CB7
Circuit protectedRating
Circuit
breaker
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TO REPLACE CIRCUIT BREAKER
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Open the control panel. See TO ACCESS
CONTROL PANEL instructions.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
2. Locate the circuit breakers on the upper
edge of the control panel.
3. Locate the circuit breaker that needs
changing.
4. Disconnect the wires from the back of circuit
breaker.
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5. Remove the metal lock ring from the circuit
breaker. The lock ring may have to be cut to
remove, or, remove the two screws holding
the CB to the panel.
6. Push the circuit breaker out of the mount
hole, or, remove the CB from the back of
panel.
7. Remove the rubber boot from the old circuit
breaker and install it on the new circuit
breaker. (lower amp only)
8. Position the new circuit breaker in the mount
hole. Note that the circuit breaker and mount
hole are ”D” shaped. The circuit breaker can
only be installed one way. (lower amp only)
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9. Install the new lock ring on the new circuit
breaker, or, reinstall the two screws. Hand
tighten.
10. Reconnect the wires to the back of the new
circuit breaker. See the schematic in this
section.
11. Pivot the control panel back in position.
Reinstall the two screws and tighten to
18 -- 24 Nm (15 -- 20 ft lb).
12. Lift the operator seat and reconnect the
battery connector at the front of the solution
tank.
13. Close the seat support. Start the machine
and check for proper operation.
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FUSES
The fuse is a one-time protection device designed
to stop the flow of current in the event of a circuit
overload.
NOTE: Always replace the fuse with a fuse of the
same amperage.
The fuse is located behind the operator console.
Access the fuse by lowering the operator console.
Fuse Rating Circuit Protected
FU-1 80 A Propelling
TO REPLACE FUSE
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Open the control panel. See TO ACCESS
CONTROL PANEL instructions.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
2. Locate the electrical fuse on the bottom, left
side of the control panel.
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3. Loosen both bolts holding the two power
cables to the top and bottom of the fuse and
red stand--offs.
4. The fuse has slots on the top and bottom.
Slide the fuse up and to the side and
remove.
5. Position the new fuse on the two red
stand--offs, under the two bolts and power
cables. Hand tighten the hardware. See the
schematic in this section.
6. Pivot the control panel back in position.
Reinstall the two screws and tighten to
18 -- 24 Nm (15 -- 20 ft lb).
7. Lift the operator seat and reconnect the
battery connector at the front of the solution
tank.
8. Start the machine and check for proper
operation.
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DIRECTIONAL CONTROL PEDAL
The directional pedal controls the machine’s
direction of travel and propelling speed. The
machine’s speed is controlled by the amount of
pressure placed on the pedal; the farther the
pedal is pressed, the faster the machine will
travel.
When the machine is moving forward and the
directional pedal is reversed, the machine will
coast for a short distance before changing
direction. Use the brake pedal to stop the
machine.
Forward: Press the top of the directional
pedal with the upper part of your foot.
NOTE: A machine power shut--off switch is
located under the operator seat. If there is no
weight on the operator seat, the machine WILL
NOT propel in any direction.
Reverse: Press the bottom of the
directional pedal with the heel of your foot.
NOTE: When the directional pedal is placed into
the reverse position, the rear squeegee will
automatically raise. After a short delay, the
vacuum will stop.
Neutral: The machine will automatically
return to the Neutral position when you take
your foot off of the directional pedal.
NOTE: When the directional pedal returns to the
neutral position the scrub head will stop. After a
short delay, the scrub head will also raise.
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TO REPLACE MOTOR CONTROLLER
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Open the control panel. See TO ACCESS
CONTROL PANEL instructions.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
2. Locate the controller box in the center of the
control panel.
3. Disconnect the wires and power cables
leading to the controller.
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44 T15 331555 (05-2007)
4. Remove the three screws and nuts holding
the controller to the panel. Remove the
controller from the machine.
5. Position the new controller on the panel.
Reinstall the screws and nuts. Hand tighten.
6. Reconnect the power cables and electrical
wires to the controller. See the schematic in
this section.
7. Pivot the control panel back in position.
Reinstall the two screws and tighten to
18 -- 24 Nm (15 -- 20 ft lb).
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8. Lift the operator seat and reconnect the
battery connector at the front of the solution
tank.
9. Start the machine and check for proper
operation of the propelling.
TO REPLACE TAILLIGHT BULB
1. Drain the tanks, then remove tank drain
caps.
2. Loosen the bottom screws holding the drip
tray.
3. Rotate the tray outward from the bottom.
This allows access to the taillight assembly.
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SCRUB HEAD
The model T15 can be equipped with either
a cylindrical or a disc style scrub head. The scrub
head houses the scrub brushes and their drive
mechanisms.
The scrub head adjustments are factory set and
should not be changed unless scrub head parts
are damaged or replaced.
The scrub head also includes floor skirts to
control water spray. These skirts can be adjusted
and need to be replaced if worn or damaged.
SCRUB HEAD LINKS
The scrub head links attach the scrub head
frame to the machine frame. The two scrub head
links allow the scrub head to follow the contour of
the floor. The links have a pivot point on each end
and no regular lubrication.
CYLINDRICAL
DISC
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TO REPLACE SCRUB HEAD LINKS
1. Start the machine and lower the scrub head
to the floor. Shut off the key.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Go under the machine on each side and
remove the nyloc nut holding the scrub head
links to the machine frame and scrub head
frame. Remove the scrub head links from
the machine.
NOTE: The measurement for the new scrub head
links should be 16 inches from the center of the
front ball joint to the center of the rear balljoint.
3. Install the new scrub head links on the
machine with the ball joints facing the inside
of the machine frame. Firmly tighten the four
nyloc nuts.
NOTE: Use the front frame hole for the
cylindrical scrub head and the rear frame
mount hole for the disc scrub head.
4. Start the machine and raise the scrub head.
Check the scrub head links for proper
operation.
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TO REMOVE DISC SCRUB HEAD
1. Start the machine and lower the scrub head
to the floor. Shut off the key.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Disconnect the water line leading from the
shut--off valve to the scrub head.
3. Disconnect the two scrub brush motors from
the main electrical harness.
NOTE: Mark the connectors for proper
re--assembly.
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4. Remove the cotter pin and clevis pin from
the scrub head lift mechanism where it
attaches to the frame and actuator.
5. Remove the nyloc nut holding the ball joint
to the mount bracket on the scrub head. Do
this on both sides of the scrub head.
6. Jack up the front of the machine far enough
to slide the scrub head out. Install jack
stands under the machine frame.
7. The scrub head can now be pulled out from
under the machine frame.
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TO INSTALL DISC SCRUB HEAD
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Slide the scrub head under the machine
frame with the scrub head link mount holes
facing the front.
2. Install the ball joint on the end of the scrub
head link into the mount hole on the scrub
head. The ball joint should be positioned so
it is facing the inside of the machine frame.
Do this on both sides of the machine.
3. Position the scrub head as close as possible
to the center. Remove the jack stands and
lower the machine until the clevis pins can
be reinstalled in the front of the scrub head
lift bracket and the bottom of the lift actuator.
4. Reconnect the brush drive motors to the
main electrical harness.
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5. Reconnect the water line to the scrub head
6. Start the machine and raise the scrub head.
Operate the machine and check the scrub
head for proper operation. Check the scrub
brushes for proper rotation.
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TO REPLACE DISC SCRUB HEAD BRUSH
MOTOR
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Remove the side squeegees. See TO
REPLACE SIDE SQUEEGEE BLADES
instructions in the SCRUBBING section.
2. Remove the scrub brushes. See TO
REPLACE DISC SCRUB BRUSHES
instructions in the SCRUBBING section.
3. Go in under the scrub head and remove the
screw and washer from the center of the
brush drive plug.
4. Drop the drive plug down off the motor shaft.
Make sure to retain the square key.
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5. Remove the four screws holding the brush
motor to the scrub head.
6. Start the machine and lower the scrub head.
Shut off the key.
7. Go in on top of the scrub head and
disconnect the scrub brush motor from the
main harness. Note the orientation of wire to
motor.
8. Lift the brush motor off the deck of the scrub
head and remove it from the machine. Note
the orientation of the brush motor power
cable. The new motor must be orientated
the same direction.
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9. Position the new motor on the scrub head.
10. Reconnect the motor wires to the main
electrical harness. See schematic in this
section.
11. Start the machine and raise the scrub head.
Shut off the key.
12. Rotate the brush motor until it is orientated
properly and the mount holes line up with
the holes in the deck of the scrub head.
Install the four screws and tighten to
11 -- 14 Nm (7 -- 10 ft lb).
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13. Install the square key and drive plug on the
brush motor shaft. Install the screw and
washer in the center of the drive plug.
Tighten to 18 -- 24 Nm (15 -- 20 ft lb).
14. Reinstall the scrub brush. See TO
REPLACE DISC SCRUB BRUSHES
instructions in the SCRUBBING section.
15. Reinstall the side squeegees. See TO
REPLACE SIDE SQUEEGEE BLADES
instructions in the SCRUBBING section.
16. Start the machine and operate the scrubbing
function. Check for proper operation and
rotation of the new motor.
FRONT OF MACHINE
SCRUB BRUSH ROTATION
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TO REMOVE CYLINDRICAL SCRUB HEAD
1. Start the machine and lower the scrub head
to the floor. Shut off the key.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Disconnect the water line leading from the
shut off valve to the scrub head.
3. Disconnect the two scrub brush motors from
the main electrical harness. Mark the
connectors for proper re--assembly.
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4. Remove the cotter pin and clevis pin from
the scrub head lift mechanism where it
attaches to the scrub head.
5. Remove the nyloc nut holding the ball joint
to the mount bracket on the scrub head. Do
this on both sides of the machine.
6. Turn on the machine and raise the scrub
head lift actuator. Turn off the machine.
NOTE: This will allow more clearance for the
scrub head to slide out.
7. The scrub head can now be pulled out from
under the machine frame.
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TO INSTALL CYLINDRICAL SCRUB HEAD
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Slide the scrub head under the machine
frame with the scrub head link mount holes
facing the front.
2. Install the ball joint on the end of the scrub
head link into the mount hole on the scrub
head. The ball joint should be positioned so
it is facing the inside of the machine frame.
Do this on both sides of the machine.
3. Position the scrub head as close as possible
to the center. Turn on the machine and lower
the scrub head lift actuator.
NOTE: Do this in small increments until the
mount hole in the scrub head lines up with the
mount hole in the lift mechanism.
4. Install the clevis pin and cotter pin.
5. Reconnect the brush drive motors to the
main electrical harness.
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6. Reconnect the water line to the scrub head
7. Start the machine and raise the scrub head.
Operate the machine and check the scrub
head for proper operation. Check the scrub
brushes for pattern and proper rotation. See
TO CHECK AND ADJUST CYLINDRICAL
BRUSH PATTERN instructions.
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TO REPLACE CYLINDRICAL SCRUB HEAD
BRUSH MOTOR
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Remove the side squeegees. See TO
REPLACE SIDE SQUEEGEE BLADES
instructions in the SCRUBBING section.
2. Remove the scrub brushes. See TO
REPLACE DISC SCRUB BRUSHES
instructions in the SCRUBBING section.
3. Start the machine and lower the scrub head.
Shut off the key.
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4. Go in on top of the scrub head and
disconnect the scrub brush motor from the
main harness. Note the orientation of wire to
motor.
5. Loosen the front and rear pivot mount bolts
on the brush motor.
6. Remove the two screws holding the brush
motor belt cover to the brush motor.
Remove the belt cover from the scrub head.
7. Loosen the jam nut on the belt tension bolt
under the brush motor. Turn the tension bolt
down far enough to slip the the belt off the
cogged pulley.
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M
8. Remove the two screws holding the brush
motor to the pivot bracket. Remove the
brush motor from the machine.
9. Loosen the set screws holding the cogged
pulley to the brush motor shaft. Slide the
pulley off the shaft.
NOTE: Do not loose the square key.
10. Install the cogged pulley and square key
onto the shaft of the new brush motor.
NOTE: Leave the set screws loose for now.
11. Position the new brush motor on the scrub
head. Align the mounting holes on the motor
with the holes in the pivot mount bracket.
Install the two screws. Snug the hardware
for now.
12. Slip the brush belt over the cogged pulley.
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13. Align the top pulley with the bottom drive
plug. Make sure the belt is in the center of
the top pulley. Tighten the set screws tight.
NOTE: Use loctite 242 blue on the threads.
14. Use the hex screw under the brush motor to
tension the belt. Apply 2.5--2.7 lbs. of force
at the middle of the span that is opposite
belt travel.
NOTE: There should be 0.10 inch of deflection.
15. Tighten the two motor pivot screws to
18 -- 24 Nm (15 -- 20 ft lb). Re--check the
belt tension.
16. Reconnect the brush motor into the main
harness.
NOTE: See schematic in this section.
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17. Reinstall the belt cover. Tighten the screws
to 11 -- 14 Nm (7 -- 10 ft lb). Apply a small
amount of RTV sealant on the flange of the
belt cover to keep dust out of the cogs of the
belt.
18. Reinstall the scrub brushes. See TO
REPLACE CYLINDRICAL SCRUB
BRUSHES instructions in the SCRUBBING
section.
19. Operate the machine and check the scrub
brush motor for proper operation.
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CYLINDRICAL BRUSH DRIVE BELT
The two brush drive belts are located on
the cylindrical brush scrub head. The belts drive
the cylindrical brushes. Proper belt tension is a
3 mm (0.1 in) deflection from a force of
1.1 to 1.2 kg (2.5 to 2.7 lb) at the belt midpoint.
Check and adjust the belt tension every 100 hours
of operation.
TO REPLACE BRUSH DRIVE BELT
1. Start the machine and lower the scrub head
near the floor. Shut off the key.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Remove the scrub brushes. See TO
REPLACE CYLINDRICAL SCRUB
BRUSHES instructions.
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3. Remove the two screws holding the belt
cover to the scrub brush motor. Remove the
belt cover from the scrub head.
4. Loosen the two pivot bolts on the bottom of
the brush motor.
5. Loosen the belt tension bolt under the brush
motor. Turn the bolt down far enough to
allow the belt to be slipped off the motor
pulley. Push the drive belt down toward the
lower brush drive plug.
NOTE: Make sure the scrub head is slightly off
the floor before attempting to remove the drive
plug rubber seal.
6. Cut the RTV sealant around the rubber seal.
Use a needle nose pliers to remove it from
the brush drive plug. Note the orientation of
the seal. Remove the drive plug.
7. Remove the brush drive belt from the
machine.
NOTE: It is a tight fit for the belt in the area of the
lower belt cover and bottom drive plug. Carefully
work the belt past the lower cover----DO NOT
remove the lower cover.
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8. Slip the new drive belt into position. Push
the rest of the drive belt up toward the motor
belt pulley. Slip the drive belt over the motor
belt pulley.
9. Reinstall the brush drive plug. Install the
drive belt over the drive plug.
10. Reinstall the rubber seal on the drive plug.
Note the orientation of the seal. Use
RTV--Blue sealant all around the seal when
installing.
11. Use the tension bolt under the drive motor to
tighten the drive belt. Apply 2.5 -- 2.7 lbs of
force to the drive belt in the middle of the
span. The belt should deflect 0.10 inch.
12. Tighten the drive motor pivot bolts to
18 -- 24 Nm (15 -- 20 ft lb). Re--check
the belt tension.
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13. Reinstall the belt cover. Tighten the screws
to 11 -- 14 Nm (7 -- 10 ft lb).
14. Reinstall the scrub brushes. See TO
REPLACE CYLINDRICAL SCRUB
BRUSHES instructions.
15. Operate the machine and check the scrub
brushes for proper operation.
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DISC SCRUB HEAD SKIRTS
SCRUB HEAD FLOOR SKIRTS
The scrub head floor skirts control water spray
from the brushes. The skirts are located in front
and rear of the scrub head. Check these skirts for
wear and damage after every 50 hours of
operation.
The skirts should clear the floor by 0 to 0.25 in.
(0 to 6mm) when the scrub head is down. Check
the floor skirt adjustment after every 50 hours of
operation.
TO ADJUST DISC SCRUB HEAD SKIRTS
1. Start the machine and lower the scrub head
to the floor. Shut off the key.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Loosen the screws holding the retainer and
skirt to the scrub head frame.
3. Position the up or down as needed to
achieve 1/8 to 1/4 inch clearance from the
bottom of the skirt to the floor.
4. Re--tighten the retainer screws. Operate the
machine and check the scrub head skirts for
proper water spray control.
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TO REPLACE DISC SCRUB HEAD SKIRTS
1. Start the machine and lower the scrub head
to the floor. Shut off the key.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Remove the screws holding the retainer and
skirt to the scrub head frame. Remove and
discard the skirt.
3. Position the new skirt and existing retainer
on the scrub head. Adjust the skirt and
tighten the retainer screws. See TO
ADJUST DISC SCRUB HEAD SKIRTS
instructions.
4. Operate the machine and check the scrub
head skirts for proper water spray control.
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CYLINDRICAL BRUSH HEAD DEBRIS TRAY
The cylindrical style scrub head is equipped
with a rear mounted debris tray. Small debris is
picked up by the two cylindrical scrub brushes and
deposited in the debris tray located behind the
rear scrub brush. The debris tray can be easily
removed and emptied.
TO REMOVE DEBRIS TRAY
1. Start the machine and touch the scrub
button. Shut off the key when the scrub
head is near the floor.
NOTE: Do not touch the directional pedal.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Go to the right side of the machine. Locate
the scrub head side squeegee. Pull the hair
pin out of the squeegee lock pin.
3. Pivot the side squeegee out, away from the
scrub head.
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4. Grasp the plastic debris tray and pivot the
bottom up, away from the back of the scrub
head. Pivot the debris tray far enough to
allow the rubber skirt to clear the scrub
head.
5. Pull the debris tray straight out to the right
until it is free of the scrub head lip. Empty
the debris tray.
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TO INSTALL DEBRIS TRAY
1. Lower the scrub head to the floor.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Position the debris tray, opening facing
forward, on the lip on the back of the scrub
head. Push the debris tray in until is stops.
3. Swing the right hand side squeegee back to
the side of the scrub head. Make sure the
lock pin is positioned in the mount hole.
Reinstall the hair pin.
4. Start the machine and raise the scrub head.
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TO REPLACE DEBRIS TRAY SKIRT
1. Remove the debris tray. See TO REMOVE
DEBRIS TRAY instructions.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Remove the six screws, washers, and nuts
holding the debris tray skirt and retainer to
the top lip of the tray. Remove the retainer
and skirt. Discard the skirt.
3. Position the new debris tray skirt and
existing retainer on the top lip of the tray.
4. Reinstall the hardware and hand tighten
lightly.
5. Reinstall the debris tray in the machine. See
TO INSTALL DEBRIS TRAY instructions.
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SCRUB BRUSHES
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 for brush damage
and wear.
DISC SCRUB BRUSHES
The disk brushes should be replaced if a large
number of bristles are missing or if bristle length is
less than 10 mm (0.38 in).
NOTE: Replace worn brushes in pairs. Scrubbing
with brushes of unequal bristle length will result in
diminished scrubbing performance.
TO REPLACE DISC SCRUB BRUSHES
1. Raise the scrub head.
2. Turn the machine power off.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
3. Turn the brush until you can see the brush
spring clip.
4. Press the brush spring clip together with
your thumb and index finger. The brush will
drop off of the brush drive hub. Pull the
brush out from under the scrub head.
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5. Place the new scrub brush on the floor in
front of the scrub head. Push the brush
under the scrub head.
6. Line up the brush drive socket with the drive
plug.
7. While pressing the brush spring clip together
with your thumb and index finger, lift the
scrub brush onto the drive plug.
8. Check to make sure the brush is securely
mounted on the brush drive hub.
9. Repeat for the other brush.
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CYLINDRICAL SCRUB BRUSHES
Check the brush taper and rotate the brushes
from front-to-rear every 50 hours of machine
operation for maximum brush life and best
scrubbing performance.
The cylindrical brushes should be replaced if large
amounts of bristles are missing, or if the
remaining bristle length is less than 10 mm
(0.38 in).
NOTE: Replace worn brushes in pairs. Scrubbing
with brushes of unequal bristle length will result in
diminished scrubbing performance.
NOTE: Fill the solution tank before checking or
adjusting the brush pattern.
TO REPLACE CYLINDRICAL SCRUB
BRUSHES
1. Press the scrubbing switch. When the scrub
head is approximately 25 mm (1 in) from the
floor, turn the machine power off.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Remove the cotter pin that holds the side
squeegee in place. Swing the squeegee
away from the scrub head.
3. Push downward on the mounting spring and
idler door until the top of the door releases
from the scrub head. Pull the bottom of the
door outward, then pull the idler door and
idler plug off of the brush.
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4. Pull the old brush out of the scrub head.
5. Position the brush with the double row end
towards you. Guide the new brush onto the
drive hub.
6. Insert the Idler plug (on the inside of the idler
door), into the brush.
7. Push down on the door to catch the door in
the scrub head, then pull up on the door to
latch it into the spring.
8. Repeat for the other brush on the other side
of the scrub head.
NOTE: Each side of the scrub head is stamped
with a letter. The idler door of that side of the
scrub head is stamped with the same letter. Make
sure the letter on the door matches the letter on
the scrub head when replacing the doors.
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TO CHECK AND ADJUST CYLINDRICAL
BRUSH PATTERN
1. Apply chalk (or another material that will not
easily blow away), to a smooth, level section
of the floor.
2. Lower the scrub head in the chalked area.
Allow the machine to scrub in the same
place for 15 to 20 seconds.
NOTE: If chalk or other material is not available,
allow the brushes to spin on the floor for two
minutes. A polish mark will remain on the floor.
3. Raise the scrub head and move the machine
away from the chalked area. Turn the
machine power off.
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4. Observe the shape of the brush patterns. If
the brush patterns have parallel sides, the
brushes do not need adjustment.
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If one, or both of the brush patterns are
tapered, the brushes need adjustment to
straighten the brush pattern.
1. To adjust brush taper, push downward
on the mounting spring and idler door
until the top of the door releases from
the scrub head. Pull the bottom of the
door outward, then pull the idler door
and idler plug off of the brush.
2. While holding the flat end of the idler
shaft with a wrench, loosen the
mounting screw on the outside of the
idler door.
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3. Turn the idler shaft to raise or lower the
end of the brush as needed to
straighten the brush pattern. Tighten
the mounting screw.
4. Check the brush patterns again and
readjust as necessary until both
patterns are the same.
5. If one brush pattern is wider than the other,
the scrub head needs to be leveled.
Level the scrub head by turning the scrub head
links. Both scrub head links should be adjusted
equally.
Check the brush patterns again and readjust as
necessary until both patterns are the same.
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SCRUB HEAD LIFT ACTUATOR
The lift actuator is an electric device that, with a
push of a switch, raises and lowers the scrub
head.
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TO REPLACE SCRUB HEAD LIFT ACTUATOR
1. Start the machine and lower the scrub head
to the floor. Shut off the machine.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Go in on top of the scrub head and remove
the cotter pin and clevis pin from the bottom
of the scrub head lift actuator tube.
3. Go into the operators compartment and
locate the two screws holding the lift
actuator mount bracket to the front of the
seat support. Remove the two screws.
4. Raise the seat support and unplug the
battery connector.
FOR SAFETY: Disconnect Battery
Connections Before Working On
machine.
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5. Tie the seat up. Remove the screw holding
the seat prop rod to the bottom of the seat
support. Remove the prop rod from the lock
slot.
6. Locate the lift actuator spring mount bracket.
Remove the two screws holding the mount
bracket to the actuator mount assembly.
7. Lift the actuator and spring mount bracket
out of the assembly and remove from the
machine.
8. Remove the cotter pin and clevis pin holding
the actuator to the bottom of the spring
mount bracket. Remove the actuator. Note
the orientation of the actuator on the
bracket.
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9. Position the new actuator on the spring
mount bracket. Install the clevis and cotter
pins.
10. Position the new actuator and spring mount
bracket in the machine. Slide the assembly
down the into the mount bracket. Route the
wires and plug in the connector. Make sure
the wires are located in the slot on the of the
actuator bracket before installing the spring
mount bracket.
11. Reinstall the two screws in the spring mount
bracket. Leave loose for now.
12. Go around to the front of the seat support
and install the two screws that hold the front
of the spring mount bracket to the seat
support. Tighten all four screws to
18 -- 24 Nm (15 -- 20 ft lb).
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13. Reinstall the prop rod in the bracket and on
the bottom of the seat support. Snug the
screws and nut so the rod can still pivot.
14. Go in on top of the scrub head and install
the clevis and cotter pin in the bottom of the
scrub head lift actuator tube and scrub head
lift bracket.
15. Raise the seat support and plug in the
battery connector. Lower the seat assembly.
16. Operate the machine and check the scrub
head lift actuator for proper operation.
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SOLUTION SYSTEM
RECOVERY TANK
The recovery tank holds recovered solution. Clean
and drain the recovery tank after each use. The
outside of the tank can be cleaned with vinyl
cleaner.
ES mode: Flush out the recovery tank with clean
water. Rinse the filter and the sensor floats near
the top of the tank.
NOTE: DO NOT use steam to clean the tanks.
Excessive heat can damage the tanks and
components.
Thoroughly rinse the sensor floats inside the
recovery tank after each use.
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TO REMOVE RECOVERY TANK
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. In order to remove the recovery tank, the
solution tank hardware must be loosened or
removed first. See TO REMOVE
SOLUTION TANK instructions.
2. Tilt the seat support until the prop rod is
engaged.
3. If the machine is equipped with an overhead
guard----it must be removed.
4. Make sure the recovery tank is drained and
the tank clean out caps removed.
5. Remove the four hex screws holding the
plastic, rear drain splash tray. Let it drop
down for access to the recovery tank
hardware.
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6. Remove the screw on the left side of the
solution tank drain cap.
7. Open the tank cover. Remove the hardware
holding the top of the prop arm to the tank
cover.
8. Pull the vacuum hose out of the hole in the
recovery tank.
9. Remove the plastic tank cover hinge rod.
Remove the tank cover from the machine.
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10. Remove the two screws holding the vacuum
fan to the top of the recovery tank. Pull the
vacuum fan up and disconnect the electrical
plug. Remove the vacuum fan from the
machine.
11. Remove the hardware holding the air flush
valve and bracket to the recovery tank.
12. Go in the operators compartment and
remove the screw from the left, front corner
of the recovery tank.
13. Pull the recovery tank up far enough to
access the ESthose on the inside wall.
Remove the hose from the recovery tank.
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14. Disconnect the float switch electrical plug
from the main harness.
NOTE: Make sure to note the orientation of the
electrical harness before removing the solution
tank. It is very important to position the harness in
the same location when installing a new tank.
15. The recovery tank can now be removed
from the machine.
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TO INSTALL RECOVERY TANK
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Position the recovery tank on the left side
edge of the machine frame.
2. Connect the hose coming from the ESt
pump to the nipple on the side of the
recovery tank. Tighten the worm drive
clamp.
3. Drop the recovery tank down in place. Be
careful to route the electrical harness
properly.
4. Move the tank around until the front and
back mount holes in are lined up with the
holes in the frame.
5. Install the hex screw in the area to the left of
the tank drain cap. Leave loose for now.
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6. Install the screw holding the left front of the
recovery tank to the frame in the area of the
operators compartment. Leave loose for
now.
7. Install the air flush valve mount bracket on
the front of the recovery tank. Tighten all
three screws to 18 -- 24 Nm (15 -- 20 ft lb).
8. Reinstall the vacuum fan on the recovery
tank. Reconnect the vacuum fan to the main
electrical harness. Tighten the hardware to
18 -- 24 Nm (15 -- 20 ft lb).
9. Reinstall the tank cover and plastic hinge
rod.
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10. Reconnect the top of the prop arm to the
tank cover.
11. Reinstall the plastic, rear drain splash tray
over the tank drains. Tighten the four
screws.
12. Reinstall the tank drain hose and caps.
13. Reinstall the overhead guard if it was
removed earlier.
14. Operate the machine and check the
recovery tank for any leaks and for proper
operation of the float switch.
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SOLUTION TANK
The solution tank holds the cleaning solution.
If deposits form on the bottom of the tank, rinse
the tank and with a strong blast of warm water.
ES option: The solution tank should be drained
and cleaned daily. Rinse the sensor float near the
top of the solution tank off with a hose after each
use.
The solution tank contains one standard solution
filter. If the filter becomes dirty, the solution flow
will be reduced. Check and clean this filter
regularly.
NOTE: DO NOT use steam to clean the tanks.
Excessive heat can damage the tanks and
components.
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TO REMOVE SOLUTION TANK
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. In order to remove the solution tank, the
recovery tank must be removed first. See
TO REMOVE RECOVERY TANK
instructions.
2. Remove the seat assembly. See TO
REMOVE SEAT ASSEMBLY instructions in
CHASSIS section.
3. Disconnect the battery plug from the
batteries. Remove the two screws holding
the battery connector bracket to the front of
the solution tank.
4. Remove the battery nearest the right, rear
corner of the battery compartment.
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5. Remove the two screws holding the front of
the solution tank to the seat support.
6. If the machine is equipped with an overhead
guard----it must be removed.
7. Make sure the solution tank is drained and
the tank clean out caps removed.
8. Remove the four hex screws holding the
plastic, rear drain splash tray. Let it drop
down for access to the solution tank
hardware.
9. Remove the screw on the right side of the
solution tank drain cap.
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10. Open the tank cover. Remove the hardware
holding the top of the prop arm to the tank
cover.
11. Remove the plastic tank cover hinge rod.
Remove the tank cover from the machine.
12. Remove the hardware holding the air flush
valve and bracket to the solution tank.
13. Disconnect the clear water hose from the
top, front corner of the solution tank.
14. Disconnect the float switch electrical plug
from the main harness.
NOTE: Make sure to note the orientation of the
electrical harness before removing the solution
tank. It is very important to position the harness in
the same location when installing a new tank.
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15. Lift the solution tank up far enough to
access the clamp on the hose running from
the bottom of the solution tank to the water
valve. Loosen this clamp and remove the
hose from the solution tank.
16. The solution tank can now be removed from
the machine.
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TO INSTALL SOLUTION TANK
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Position the solution tank on the right side
edge of the machine frame.
2. Connect the hose coming from the water
valve to the nipple on the bottom of the
solution tank. Tighten the worm drive clamp.
3. Drop the solution tank down in place. Be
careful to route the electrical harness
properly.
4. Move the tank around until all the mount
holes in the tank are lined up with the holes
in the frame.
5. Install the hex screw in the area to the right
of the tank drain cap. Leave loose for now.
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T15 Maintenance & Repair
6. Install the two screws holding the front of the
solution tank to the seat support. Leave
loose for now.
7. Install the air flush valve mount bracket on
the side of the solution tank. Tighten all four
screws to 18 -- 24 Nm (15 -- 20 ft lb).
8. Connect the water hose to the top, front
nipple on the solution tank. Tighten the
worm drive clamp.
9. Connect the float switch to the main
harness.
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10. Reinstall the tank cover and plastic hinge
rod.
11. Reconnect the top of the prop arm to the
tank cover.
12. Reinstall the plastic, rear drain splash tray
over the tank drains. Tighten the four
screws.
13. Reinstall the tank drain hose and caps.
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14. Reinstall the battery in the right, rear corner
of the battery compartment.
15. Reinstall the battery connector mount
bracket on the front of the solution tank.
Tighten the two screws to 18 -- 24 Nm
(15 -- 20 ft lb).
16. Reinstall the overhead guard if it was
removed earlier.
17. Operate the machine and check the solution
tank for any leaks and for proper operation
of the float switch.
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MANUAL SOLUTION VALVE
The manual solution valve is located under the
floor plate on the left side of the machine. This
valve controls the amount of water being sent to
the scrub brushes. The control lever is located in
the operators compartment, next to the operators
left leg.
TO REPLACE SOLUTION VALVE
1. Drain the solution tank.
2. Lower the scrub head to the floor.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
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3. Go under the machine on the left side.
4. Locate the manual solution valve above the
scrub head.
5. Remove the cotter pin from the control lever
rod where it attaches to the valve. Pop the
rod out of the mount hole.
6. Loosen the worm drive clamps holding the
two solution hoses to the valve fittings. Pull
the hoses off the fittings.
7. Remove the two screws holding the valve to
the machine frame. Remove the manual
valve from the machine.
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8. Remove the fittings from the old valve and
install in the new valve in the same
orientation.
9. Remove the lever from the old valve and
install it on the new valve in the same
orientation.
10. Install the new valve on the machine. Hand
tighten the screws.
11. Reconnect the two solution hoses. Hand
tighten the worm drive clamps.
12. Place the control lever rod in the mount hole
and install the cotter pin.
13. Operator the machine and check the water
valve for proper operation.
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SOLUTION SOLENOID VALVE
The solution solenoid valve is used to start and
stop the flow of water to the scrub head when the
machine is either propelling forward or in neutral.
This valve is used along with the manual valve,
which controls the amount of water that flows to
the scrub head.
TO REPLACE SOLUTION SOLENOID VALVE
1. Drain the solution and recovery tanks.
2. Start the machine and lower the scrub head.
Turn off the key.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
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3. Go under the machine on the left side, in
front of the rear tire.
4. Locate the solution solenoid valve in the
area of the manual valve.
5. Mark and disconnect the wires leading to the
solenoid valve.
6. Loosen the two worm drive clamps holding
the water hoses to the valve. Mark the
hoses and pull them off the fittings.
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7. Remove the two screws holding the valve to
the machine frame. Remove the valve from
the machine.
8. Position the new solenoid valve in the
machine. Reinstall the hardware and lightly
hand tighten.
9. Re--connect the two water hoses to the new
valve. Hand tighten the two worm drive
clamps.
10. Re--connect the wires to the new solenoid
valve. See schematic in the section.
11. Start the machine and operate. Check the
new valve for proper operation.
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FaST SYSTEM
FaST SUPPLY HOSE CONNECTOR
The FaST supply hose connector is located below
the FaST PAK holder. Soak the connector in
warm water if detergent buildup is visible. When a
FaST PAK carton is not installed, store the supply
hose connector on the storing plug to prevent the
hose from clogging.
FaST / SOLUTION FILTER SCREEN
The FaST / solution filter screen is located under
the machine. It filters the water from the solution
tank as it flows into the FaST system.
Remove the filter screen bowl and clean the filter
screen after every 50 hours of FaST scrubbing.
Empty the solution tank before removing the filter.
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EStPUMP
TO REPLACE EStPUMP
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Make sure the solution and recovery tanks
are empty.
2. Remove the vacuum fan assembly. See TO
REMOVE VACUUM FAN ASSEMBLY
instructions.
3. Locate the EStpump under the
solution/recovery tanks, behind the rear
squeegee mount frame.
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4. Disconnect the EStpump from the main
electrical harness.
5. Loosen the worm drive clamps holding the
solution hoses to the EStpump. Pull the
hoses off the pump fittings.
6. Loosen the large worm drive clamp holding
the pump to the bracket.
7. Pull the EStpump assembly out of the
machine.
8. Remove the plastic fittings from the old
pump and install in the new pump in the
same orientation.
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9. Install the new EStpump on the mount
bracket. Reinstall the large worm drive
clamp and hand tighten tight.
10. Place both solution hoses onto the pump
fittings. Hand tighten the worm drive clamps.
11. Reconnect the pump to the main electrical
harness. See schematic in this section.
12. Reinstall the vacuum fan assembly. See TO
INSTALL VACUUM FAN ASSEMBLY
instructions.
13. Operate the machine and check the ESt
pump for proper operation.
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SQUEEGEES
The rear squeegee assembly channels water into
the vacuum fan suction. The front blade channels
the water, and the rear blade wipes the floor.
Check the squeegee blades for damage and wear
daily. Rotate or replace either of the squeegee
blades if the leading edge is torn or worn half-way
through the thickness of the blade.
The squeegee can be adjusted for leveling and
deflection. The deflection and leveling of the
squeegee blades should be checked daily, or
when scrubbing a different type of floor.
The squeegee assembly can be removed from
the squeegee pivot to prevent damage during
transport of the machine.
TO REMOVE REAR SQUEEGEE ASSEMBLY
1. Lower the squeegee to approximately
25 mm (1 in.) from the floor.
2. Turn the machine power off and set the
parking brake.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
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3. Remove the squeegee suction hose from
the squeegee.
4. Remove both squeegee mounting knobs.
5. Pull the squeegee off the machine.
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TO INSTALL REAR SQUEEGEE ASSEMBLY
1. Make sure the squeegee pivot is lowered.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Place the squeegee under the squeegee
pivot.
3. Push the squeegee frame onto the
squeegee pivot.
4. Tighten the mounting knobs.
5. Push the squeegee suction hose onto the
squeegee fitting.
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TO LEVEL REAR SQUEEGEE
Leveling of the squeegee assures even contact
for the length of the squeegee blade with the
surface being scrubbed. Make sure this
adjustment is done on an even, level floor.
1. Turn the machine power on.
2. Lower the squeegee.
3. Drive the machine forward a few feet, then
turn key switch OFF.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
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4. Look at the deflection of the squeegee over
the full length of the squeegee blade.
5. If the deflection is not the same over the full
length of the blade, turn the squeegee
leveling knob to make adjustments.
The squeegee leveling knob is located
directly behind the squeegee suction hose.
DO NOT disconnect the suction hose from
the squeegee frame when leveling
squeegee.
--Turn the squeegee leveling knob
counter-clockwise to increase the
deflection at the ends of the squeegee.
--Turn the squeegee leveling knob
clockwise to decrease the deflection at
the ends of the squeegee blade.
6. Drive the machine forward with the
squeegee down to check the squeegee
blade deflection.
7. Readjust the squeegee blade deflection if
necessary.
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TO ADJUST REAR SQUEEGEE BLADE
DEFLECTION
Deflection is the amount of curl the squeegee
blade has when the machine moves forward while
the squeegee lowered to the floor. The best
deflection is when the squeegee wipes the floor
just dry with a minimum amount of deflection.
1. Turn the machine power on.
2. Lower the squeegee.
3. Drive the machine forward, and look at the
deflection 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.
03719
12 mm
(0.50 in)
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4. Turn the machine power off.
5. To adjust the amount of deflection, turn the
squeegee deflection cams clockwise to
decrease the blade deflection.
NOTE: Turn the squeegee deflection cams
counter--clockwise to increase blade deflection.
6. Drive the machine forward again to check
the squeegee blade deflection.
7. Readjust the squeegee blade deflection if
necessary.
03719
12 mm
(0.50 in)
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REAR SQUEEGEE CASTERS
The rear squeegee casters each have two grease
fittings. Lubricate the pivot point and caster
bearing on each squeegee caster with Lubriplate
EMB grease (TENNANT part no. 01433--1) every
50 hours.
TO ADJUST REAR SQUEEGEE GUIDE
ROLLER
On the left end of the squeegee is a guide roller
that guides the squeegee blade end along a wall.
Loosen the nut at the top of the guide roller and
move the roller in or out to adjust how close the
end of the squeegee blade is to the wall. The
squeegee blade end should be further away from
the wall when the floor curves up into the wall.
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REAR SQUEEGEE BLADES
The rear squeegee has two squeegee blades, the
front and rear. Each blade has four wiping edges.
To use them all, start with one wiping edge. To
use the next wiping edge, rotate the blade
end-for-end. To use the next wiping edge, rotate
the top edges down, bottom edges up. To use the
last edge, rotate the blade end-for-end. Rotate
squeegee blades when they become worn
half--way through the thickness of the blade.
Replace damaged squeegee blades.
TO REPLACE OR ROTATE REAR
SQUEEGEE (REAR) BLADE
1. Make sure the squeegee is raised off the
floor.
2. Turn the machine power off.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
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3. Loosen the two retainer knobs, one at each
end of the squeegee.
4. Pull off the rear retaining band.
5. Pull off the rear squeegee blade.
6. Insert the rotated or new squeegee blade
and then insert the retainer band.
7. Tighten the two retainer knobs until the ends
of the front and rear squeegee blades touch.
Do not over--tighten.
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TO REPLACE OR ROTATE REAR SQUEEGEE
(FRONT) BLADE
1. Make sure the squeegee is raised off the
floor.
2. Turn the machine power off.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
3. Remove the squeegee from the machine.
See TO REMOVE SQUEEGEE ASSEMBLY
instructions.
4. Remove the rear squeegee blade and
retainer. See TO REPLACE OR ROTATE
REAR SQUEEGEE (REAR) BLADE.
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5. Loosen the two remaining knobs on top of
the squeegee assembly.
6. Pull the retainer plate back and pull out the
front squeegee blade of the squeegee
frame.
7. Insert the rotated or new squeegee blade in
the squeegee frame, lining up the slots in
the blade with the tabs on the retainer plate.
8. Push the retainer plate forward. Tighten the
two outside knobs on top of the squeegee
assembly.
9. Insert the rear squeegee blade and retainer.
Tighten the two rear blade retainer knobs
until the ends of the front and rear squeegee
blades touch. Do not over--tighten.
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10. Install the squeegee assembly on the
squeegee pivot. See TO INSTALL
SQUEEGEE ASSEMBLY instructions.
11. Adjust the squeegee blade leveling and
deflection as stated in TO LEVEL
SQUEEGEE and ADJUST SQUEEGEE
BLADE DEFLECTION instructions.
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REAR SQUEEGEE WHEEL CAMS
The squeegee wheel cams adjust the squeegee
deflection along the entire length of the squeegee.
There is a wheel cams at either end of the
squeegee.
Increase deflection: Turn the cams
counter-clockwise.
Decrease deflection: Turn the cams clockwise.
REAR SQUEEGEE LEVELING KNOB
The squeegee leveling knob adjusts the deflection
at the ends of the squeegee.
The squeegee leveling knob is located directly
behind the squeegee suction hose.
NOTE: DO NOT disconnect the suction hose from
the squeegee frame when leveling squeegee.
Increase end deflection: Turn the squeegee
leveling knob counter-clockwise to increase the
deflection at the end of the squeegees.
Decrease end deflection: Turn the squeegee
leveling knob clockwise to decrease the deflection
at the end of the squeegees.
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TO REPLACE REAR SQUEEGEE LIFT CABLE
1. Lower the squeegee to the floor.
2. Make sure the solution tank is drained and
the tank clean out caps removed.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
3. Remove the four hex screws holding the
plastic, rear drain splash tray. Let it drop
down for access to the rear squeegee lift
cable.
4. Locate the rear squeegee lift cable. Remove
the cotter pin and clevis pin from the end of
the lift cable where it attaches to the lift pivot
bracket.
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5. Remove the cotter pin and long clevis pin
from just behind the lift cable drum.
6. Remove the cotter pin and clevis pin from
the end of the lift cable where it attaches to
the squeegee frame. Remove the cable from
the machine.
7. Position the new cable in the machine. Start
by attaching one end of the cable to
squeegee frame. Reinstall the clevis pin and
cotter pin.
8. Attach the other end of the new lift cable to
the lift pivot bracket. Reinstall the clevis pin
and cotter pin.
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9. Reinstall the long clevis pin and cotter pin in
the mount hole just behind the lift cable
drum.
10. Reinstall the plastic, rear drain splash tray.
Hand tighten the mounting hardware.
11. Reinstall the tank caps.
12. Start the machine and raise the rear
squeegee. Check the new cable for proper
operation.
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SIDE SQUEEGEE BLADES
The side squeegees control water spray and
channel water into the path of the rear squeegee.
Check the side squeegees for damage and wear
daily.
Replace the side squeegee blades if they become
damaged or lose their shape. Replace the
squeegee deflectors if they become worn.
CYLINDRICAL SCRUB HEAD
DISC SCRUB HEAD
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TO REPLACE SIDE SQUEEGEE BLADES
1. Raise the scrub head.
2. Turn the machine power off.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
3. Remove the cotter pin, clevis pin, deflector
and the retainer bracket from the side
squeegee.
4. Pull the squeegee out of the squeegee
frame.
5. Slide a new squeegee blade into the frame.
6. Replace the retainer bracket, deflector,
clevis pin, and cotter pin.
7. Repeat for the side squeegee on the other
side of the scrub head.
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SQUEEGEE LIFT ACTUATOR
The lift actuator is an electric device that, with a
push of a switch, raisesand lowers the rear
squeegee.
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TO REPLACE REAR SQUEEGEE LIFT
ACTUATOR
1. Start the machine and lower the rear
squeegee. Shut off the machine.
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
2. Disconnect the squeegee lift actuator from
the main electrical harness.
3. Locate the four screws holding the
squeegee mount channel to the back of the
machine.
4. Remove the four screws. Let the squeegee
mount channel and squeegee assembly
drop down to access the lift actuator.
5. Remove the long hex screw and nyloc nut
from the motor end of the lift actuator.
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6. Remove the cotter pin and clevis from the
tube end of the lift actuator.
7. Remove the actuator from the machine.
8. Position the new actuator on the squeegee
weldment and the tube end into the pivot
weldment.
9. Reinstall the hex screw and nut in the motor
end of the lift actuator.
10. Reinstall the cotter pin and clevis in the tube
end of the lift actuator.
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11. Position the squeegee mount channel and
squeegee assembly back into position on
the back of the machine frame. Reinstall the
four screws. Tighten to 37 -- 48 Nm
(26 -- 34 ft lb).
12. Reconnect the squeegee lift actuator to the
main electrical harness. See schematic in
this section.
13. Start the machine and check the rear
squeegee actuator for proper operation.
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VACUUM FAN
The vacuum fan, when activated, creates air flow
in the recovery tank. With the recovery tank cover
closed, the air flow from the vacuum fan creates
vacuum at the squeegee vacuum hose. This
vacuum pulls water from the lowered squeegee
into the recovery tank. The vacuum fan is
equipped with a easily serviceable air filter.
TO REMOVE VACUUM FAN ASSEMBLY
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Open the recovery/solution tank cover.
2. Locate the vacuum fan on the left, front of
the recovery tank.
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3. Remove the two screws holding the vacuum
fan to the top of the tank. Pull the vacuum
fan assembly out of the top of the tank. Let it
rest on the edge of the tank.
4. Disconnect the vacuum fan motor from the
main electrical harness.
5. Remove the vacuum fan assembly from the
machine. Be careful not to loose the rubber
seal on the outlet of the vacuum housing.
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TO INSTALL VACUUM FAN ASSEMBLY
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Open the recovery/solution tank cover.
2. Position the vacuum fan assembly on the
edge of the recovery tank.
3. Connect the plug from the vacuum fan motor
to the main electrical harness. See
schematic in the ELECTRICAL section.
4. Drop the vacuum fan assembly straight
down into the tank mounting area. Make
sure the rubber seal is in place on the outlet
of the vacuum housing.
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5. Install the two screws and tighten to
18 -- 24 Nm (15 -- 20 ft lb).
6. Close the tank cover and operate the
machine. Check the vacuum fan for proper
operation.
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TO REPLACE VACUUM FAN
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Remove the vacuum fan assembly from the
machine. See TO REMOVE VACUUM FAN
ASSEMBLY instructions in the SCRUBBING
section.
NOTE: Make sure to note the position of the
vacuum fan exhaust outlet when removing the fan
from the housing.
2. Remove the three screws and brackets
holding the vacuum fan to the plastic
housing. Remove the vacuum fan.
NOTE: Make sure to install a gasket on the
bottom of the new fan.
3. Position the new fan on the housing in the
same orientation as the old fan.
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4. Reinstall the three screws and brackets.
Tighten the hardware only until the gasket
starts to compress.
NOTE: On a machine equipped with the HD
vacuum fan option, there is two fans and three
added brackets and screws.
5. Reinstall the vacuum fan assembly in the
machine. See TO INSTALL VACUUM FAN
ASSEMBLY instructions in the SCRUBBING
section.
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PRE--SWEEP BRUSHES
The Pre--Sweep assembly is equipped with disk
and cylindrical brushes. Check the brushes daily
for wire or string tangled around the brush or
brush drive hub. Check the brushes daily for
damage and wear.
The side brush (option) is a disk brush. Check the
brush daily for wire or string tangled around the
brush or brush drive hub. Check the brush daily
for damage and wear.
PRE--SWEEP DISK BRUSHES
The disk brushes should be replaced if a large
number of bristles are missing or if bristle length is
less than 10 mm (0.38 in).
REPLACING THE DISK BRUSHES
1. Turn the machine power on.
2. Press the bottom of the Pre--Sweep switch
to raise the Pre--Sweep assembly and stop
sweeping.
3. Turn the machine power off.
FOR SAFETY: Before leaving or
servicing machine, stop on level
surface, turn off machine, and remove
key.
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4. Pull the cotter pin from the end of the
retaining pin. Remove the side brush
retaining pin from the side brush drive shaft.
5. Remove the old side brush.
6. Slide the new side brush onto the side brush
drive shaft.
7. Insert the side brush retaining pin through
the side brush hub and shaft. Replace the
cotter pin in the end of the retaining pin.
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PRE--SWEEP CYLINDRICAL BRUSH
Check the brush taper every 50 hours of machine
operation for maximum brush life and best
sweeping performance.
The cylindrical brush should be replaced if large
amounts of bristles are missing, or if the
remaining bristle length is less than 10 mm
(0.38 in).
CHECKING AND ADJUSTING CYLINDRICAL
BRUSH PATTERN
1. Apply chalk (or another material that will not
easily blow away), to a smooth, level section
of the floor.
2. Drive the machine so the Pre--Sweep
assembly is centered in the chalk.
3. Block the front or rear wheels to prevent the
machine from moving.
4. Lower the Pre--Sweep assembly in the
chalked area. Slowly press down on the
directional pedal until the Pre--Sweep
brush begins to sweep. Allow the machine to
sweepinthesameplacefor15to20
seconds.
NOTE: If chalk or other material is not available,
allow the brush to spin on the floor for two
minutes. A polish mark will remain on the floor.
5. Raise the Pre--Sweep assembly and move
the machine away from the chalked area.
Turn the machine power off.
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6. Observe the shape of the brush pattern. If
the brush pattern has parallel sides, the
brush does not need adjustment.
If the brush pattern is tapered, the brush
needs adjustment to straighten the brush
pattern.
A. To adjust the brush taper, loosen the
two lock nuts on the left hand brush
arm.
B. Turn the machine power on and lower
the Pre--Sweep assembly. Allow the
brush to float in place for 15 to 20
seconds.
C. Tighten the two lock nuts on the left
hand brush arm.
10355
10356
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D. Check the brush pattern again and
readjust as necessary until the width of
the pattern is the same along the length
of the brush pattern.
REPLACING THE PRE--SWEEP CYLINDRICAL
BRUSH
1. Turn the machine power on.
2. Lower the Pre--Sweep assembly.
3. Turn the machine power off.
FOR SAFETY: Before leaving or
servicing machine, stop on level
surface, turn off machine, and remove
key.
4. Loosen and remove the brush idler hex
screw from the front of the idler plate.
10355
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5. Loosen and remove the four brush housing
door knobs. Set the brush housing idler plate
aside.
6. Remove the cylindrical brush and replace
with a new brush.
7. Guide the slotted end of the new brush onto
the drive hub.
8. Replace the brush idler plate, and secure
with the four brush housing door knobs and
hex screw on the front of the idler plate.
9. Check the new brush for proper adjustment.
Readjust if necessary.
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SKIRTS AND SEALS
PRE--SWEEP SIDE SKIRTS (OPTION)
The Pre--Sweep side skirts help direct debris
into the debris hopper. The side skirts are located
on both sides of the main sweeping brush in the
Pre--Sweep assembly. The side skirts should be
just touching the floor.
Check the skirts for damage and wear after every
50 hours of operation.
PRE--SWEEP RECIRCULATION SKIRT
(OPTION)
The Pre--Sweep recirculation skirt is located
behind the main sweeping brush.
Check the skirt for damage and wear after every
50 hours of operation.
PRE--SWEEP REAR SKIRT (OPTION)
The Pre--Sweep rear skirt is located behind the
recirculation skirt and main sweeping brush.
Check the skirt for damage and wear after every
50 hours of operation.
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PRE--SWEEP BRUSH DRIVE BELT (OPTION)
The Pre--Sweep brush drive belt is located inside
the Pre--Sweep assembly on the right side of the
cylindrical brush. The belt drives the cylindrical
brush. Proper belt tension is a 2 mm (.08 in)
deflection from a force of 0.76 to 0.8 kg (1.7 to 1.8
lb) at the belt midpoint.
Check the belt tension and wear every 100 hours
of operation.
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STATIC DRAG STRAP
The static drag strap prevents the buildup of static
electricity in the machine. The strap is attached to
the rear squeegee mounting channel.
Make sure the strap is always touching the floor.
STEERING GEAR CHAIN
The steering gear chain is located directly above
the front tire.
The steering gear chain tension should be
checked after the first 50 hours of operation and
every 500 hours thereafter. The proper deflection
should be 3 to 6 mm (0.1 to 0.3 in) between the
steering sprocket and the idler sprocket when the
steering wheel is turned as far as it will go in
either direction.
TIRES
The machine has three tires: one in front, and
two in the rear of the machine.Torque the rear
wheel nuts twice to 70 to 84 Nm (50 to 60 ft. lbs.)
after the first 50 hours of operation, and every
1000 hours of operation. The tires are solid
rubber. No maintenance is required.
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REAR TIRES AND WHEELS
The rear tires on the model T15 are
semi--pneumatic. The rear tire and wheel
assemblies are idler wheels only, they have no
braking capabilities.
TO REMOVE REAR TIRE
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Jack up the rear corner of the machine
where the tire needs to be removed.
NOTE: Do not raise both rear wheels off the floor
at the same time. The machine will become
unstable because of the single front tire.
2. Go under the machine in the area of the rear
tire. Locate the lock nut holding the axle
shaft to the machine frame. Remove the
lock nut and washer.
3. Support the tire while you pull the axle out of
the wheel assembly. Drop the wheel
assembly out of the machine.
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TO INSTALL REAR TIRE
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Position the wheel assembly in the machine.
(short side of hub toward outside) Raise the
tire up and align the hole in the wheel
bearing with the axle hole in the frame.
NOTE: The lug nuts must face the outside of the
machine.
2. Install the axle shaft in the machine from the
outside of the frame.
NOTE: The axle has a flat portion that must line
up with the flat in the axle mount hole.
3. Install the washer and nut on the axle.
Tighten to 68 -- 81 Nm (50 -- 60 ft lb).
4. Remove the jack stands and lower the
machine.
5. Drive the machine and check for proper
operation.
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TO REPLACE REAR WHEEL BEARINGS
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Remove the rear wheel assembly. See TO
REMOVE REAR TIRE instructions.
2. Remove the three lug nuts holding the
bearing housing to the wheel assembly.
Remove the bearing housing.
3. Use a press to remove the wheel bearings
from the housing.
4. Press the new wheel bearings into the
housing. Press the bearing in until the flange
is seated on the housing.
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5. Reinstall the wheel on the bearing housing.
(coining on wheel facing lug nuts) Tighten
the three lug nuts to 58 -- 76 Nm
(43 -- 56 ft lb).
NOTE: The lug nuts must face the outside of the
machine.
6. Reinstall the rear wheel assembly in the
machine. See TO INSTALL REAR TIRE
instructions.
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FRONT TIRE AND WHEEL, AND WHEEL
DRIVE SUPPORT
The front drive assembly controls the forward and
reverse movement of the machine along with the
braking and steering. The brake is released
electrically and uses a sprocket and chain
assembly for the steering. Forward and reverse is
accomplished with an electric motor.
FRONT WHEEL SUPPORT CASTER BEARING
ASSEMBLY
The front wheel support caster bearing is located
between the bottom swivel plate and the upper
swivel plate weldment. The bearing is a flat
needle bearing style.
TO REMOVE FRONT DRIVE ASSEMBLY
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Raise the seat support and unplug the
battery connectors.
2. Raise the front of the machine and place
jack stands under the frame.
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3. Mark and remove the electrical cables
leading to the drive motor.
4. Go in operators compartment and loosen
the lower steering shaft mount screws.
5. Pull the mount back to give the steering
chain slack. Locate and remove the master
link and steering chain.
6. Position a floor jack or transmission jack
under the drive wheel. This will support the
drive assembly when the hardware is
removed.
7. Go to the operators compartment and locate
the 4 button head screws holding the drive
assembly to the floor plate. Remove the 4
screws while supporting the drive assembly.
8. Remove the drive assembly from the
machine.
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TO INSTALL FRONT DRIVE ASSEMBLY
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Raise the seat support and unplug the
battery connectors.
2. Raise the front of the machine and place
jack stands under the frame.
3. Place the front drive assembly on a floor
jack or transmission jack. This will support
the drive assembly when installing it in the
machine.
4. Position the drive assembly under the
machine in front.
5. Raise the drive assembly up until the mount
holes in the floor plate are aligned with the
mount holes in the upper swivel plate
weldment on top of the drive assembly.
NOTE: Make sure to position the grease zerk in
the access hole in the machine floor plate.
6. Install the four button head screws and
tighten to 64 -- 83 Nm (47 -- 61 ft lb).
7. Reinstall the steering chain and master link.
Adjust the steering chain. See TO ADJUST
STEERING CHAIN instructions.
8. Reinstall the electrical cables on the drive
motor.
9. Remove the jack stands and lower the
machine.
10. Reconnect the battery cables.
11. Operate the machine and check for proper
operation.
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SCREW KIT17
RETAINING RING16
SEAL RING15
ALUMINIUM HUB14
PLASTIC COVER FOR ALUMINIUM HUB13
ALUMINIUM SPACER12
BALL BEARING 91962 2RS11
CONNECTION BOX COVER10
PROTECTIVE COVER FOR MOTOR9
FAN8
COMPLETE ELECTROMAGNETIC BRAKE WITH LEVER7
BRUSH KIT (4 PCS.)6
BRAKE ROTOR 5
CONNECTION BOX4
COMPLETE MOTOR ASSEMBLY 3
RED POLYURETHANE WHEEL 300X1002
TIRE PULLER KIT (EXTRACTORS+GUIDES)1
Description
Exploded View
General information
Oil type : AGIP BLASIA 150
Oil quantity : 130g (4.5 oz)
Brake Air gap : 0.3mm
Thread system : METRIC
Brushes check : every 1000 hours
Propel Motor Service
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Propel Motor Service
Terminal Connections
To switched B+ (A1) To M- on Propel
Controller (A2)
To switched
B+ (66/BLU)
Field + (black wire)
To S1 on Propel Controller
Field - (white wire)
To S2 on Propel Controller
To P8 on
Propel
Controller
(27/GRN)
Electric Brake
Solenoid Connections
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1) Remove the
protective metal cover
2) Remove the fan
Propel Motor Service
Electric Brake Disassembly (page 1 of 4)
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3) Remove 3 screws
4) Remove the parking brake
Propel Motor Service
Electric Brake Disassembly (page 2 of 4)
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5) Remove the snap ring
6) Remove the hub
Propel Motor Service
Electric Brake Disassembly (page 3 of 4)
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7) Remove the key
Reverse steps to reassemble
Propel Motor Service
Electric Brake Disassembly (page 4 of 4)
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Brake Disk Replacement
Armature disc
Brake disc
Remove the 3 screws and replace the brake disc.
The brake disc must be changed when it reaches 50%
wear. The new brake disc has a thickness of 2.2mm, and
must be changed when it is worn down to 1.1mm.
Propel Motor Service
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1) Remove 4 screws from the hub
WARNING :
Lift the
machine so
that the tire is
not touching
the ground.
2) Screw the 4 puller screws into the
bracket until the hub is removed
WARNING :
Remove the 4
puller screws
after this
operation
Tire Replacement (page 1 of 4)
Propel Motor Service
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3) Remove 6 screws
4) Remove the plastic hub
cover and the hub
Tire Replacement (page 2 of 4)
Propel Motor Service
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5) Remove the tire and install new tire.
Check the position of the hub with the
inner disc during mounting using the 2
guides in the TIRE PULLER KIT
6) Install the wheel by
using a plastic mallet.
Tire Replacement (page 3 of 4)
Propel Motor Service
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7) Torque screws:
Qty.6 M6x30 = 15Nm (11 ft/lb)
Qty.4 M8x20 = 22Nm (16 ft/lb)
8) Install plastic cover
Tire Replacement (page 4 of 4)
Propel Motor Service
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1) Remove 2 screws, then remove
connection box cover
WARNING:
Protect
components
from dirt while
disassembled
2) Remove 4 screws
then remove motor
Propel Motor Service
Commutator Brush Replacement (page 1 of 3)
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3) Remove nut, washer, and brush
4) Install new brushes – be sure
brushes move freely in brush holder
Propel Motor Service
Commutator Brush Replacement (page 2 of 3)
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NOTE: CHECK BRUSHES EVERY 1000 hours
Brush length new = 19 mm
Brush wear limit = 9 mm
5) Reverse steps to reassemble
Propel Motor Service
Commutator Brush Replacement (page 3 of 3)
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TO REPLACE DRIVE ASSEMBLY CASTER
BEARING AND THRUST WASHERS
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Remove the drive assembly from the
machine. See TO REMOVE FRONT DRIVE
ASSEMBLY instructions.
2. Remove the four hex screws holding the
pivot and sprocket assembly to the drive
assembly.
3. Remove the sprocket from the pivot
assembly.
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4. Remove the cotter pin and castle nut from
the upper swivel plate weldment.
5. Remove the flat washer and cone bearing
from the bottom swivel plate.
6. Lift the bottom swivel plate off the upper
swivel plate weldment.
7. Remove and discard both thrust washers
and the caster bearing from the upper swivel
plate weldment.
8. Apply grease on both sides of the new
caster bearing.
9. Position the new caster bearing on top of the
new lower thrust washer.
10. Reinstall the second new thrust washer on
top of the new caster bearing.
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11. Reinstall the bottom swivel plate on the
upper swivel plate weldment. Make sure the
grease seal is in place on the upper swivel
plate weldment.
12. Reinstall the bearing cone and flat washer
on the bottom swivel plate. Make sure the
bearing cone is greased.
13. Reinstall the castle nut and tighten to
(125 ft lbs). Then back off to the next
nearest hole and install the cotter pin. Check
to make sure the caster bearing can be
turned by hand. Reduce torque if necessary.
14. Reinstall the sprocket on the front drive
assembly.
15. Reinstall the pivot and sprocket assembly on
the drive assembly. Reinstall the four screws
and tighten to 68 -- 81 Nm (50 -- 60 ft lb).
16. Reinstall the drive assembly in the machine.
See TO INSTALL FRONT DRIVE
ASSEMBLY instructions.
17. Operate the machine and check for smooth
steering operation.
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TO REPLACE DRIVE ASSEMBLY PIVOT CONE
BEARING
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Remove the drive assembly from the
machine. See TO REMOVE FRONT DRIVE
ASSEMBLY instructions.
2. Remove the four hex screws holding the
pivot and sprocket assembly to the drive
assembly.
3. Remove the sprocket from the pivot
assembly.
4. Remove the cotter pin and castle nut from
the upper swivel plate weldment.
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5. Remove the flat washer and old cone
bearing from the bottom swivel plate.
6. Install the new cone bearing and flat washer
on the bottom swivel plate. Make sure the
new cone bearing is greased.
7. Reinstall the castle nut and tighten to
200 Nm (150 ft lbs). Then tighten to the next
nearest hole and install the cotter pin.
8. Reinstall the sprocket on the pivot assembly.
9. Reinstall the pivot and sprocket assembly on
the drive assembly. Reinstall the four screws
and tighten to 68 -- 81 Nm (50 -- 60 ft lb).
10. Reinstall the drive assembly in the machine.
See TO INSTALL FRONT DRIVE
ASSEMBLY instructions.
11. Operate the machine and check for smooth
steering operation.
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STEERING
The steering on the model T15 is controlled with
two sprockets and one chain. A large diameter
sprocket is mounted on the top of the front drive
assembly and a small diameter sprocket is
mounted on the bottom of the steering shaft. The
steering chain runs around both of these
sprockets.
After extended use, the steering chain may
stretch slightly. Any slack in the chain can be
removed by following the adjustment procedure
listed below.
TO ADJUST STEERING CHAIN
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Go into the operators compartment and
locate the two hex screws holding the lower
steering shaft bearing assembly to the floor
plate. Loosen these two hex screws.
2. Push the lower steering shaft assembly
forward until the slack has been removed
from the steering chain. Tighten the two hex
screws to 18 -- 24 Nm (15 -- 20 ft lb).
3. Operate the machine and check the steering
for proper operation.
NOTE: There is also a half link that can be
removed for more adjustment.
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TO REPLACE STEERING CHAIN
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Raise the seat support and unplug the
battery connectors.
2. Raise the front of the machine and place
jack stands under the frame.
3. Go under the machine and locate the
steering chain.
4. Rotate the steering wheel until the master
link on the chain is accessible.
5. Remove the chain master link. Remove the
steering chain from both sprockets.
6. Remove and discard the steering chain from
the machine.
7. Route the new chain around both steering
sprockets. Install the master link.
8. Remove the jack stands and lower the
machine.
9. Operate the machine and check the steering
for proper operation.
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TO REPLACE LARGE STEERING SPROCKET
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Remove the drive assembly from the
machine. See TO REMOVE FRONT DRIVE
ASSEMBLY instructions.
2. Remove the four hex screws holding the
pivot and sprocket assembly to the drive
assembly.
3. Remove the old sprocket from the pivot
assembly.
4 . Install the new sprocket on the pivot
assembly.
NOTE: Make sure the roll pin in the top of the
drive assembly lines up with the hole in the
sprocket.
5. Reinstall the pivot and sprocket assembly on
the drive assembly. Reinstall the four screws
and tighten to 68 -- 81 Nm (50 -- 60 ft lb).
6. Reinstall the drive assembly in the machine.
See TO INSTALL FRONT DRIVE
ASSEMBLY instructions.
7. Operate the machine and check for smooth
steering operation.
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TO REPLACE SMALL STEERING SPROCKET
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Raise the seat support and unplug the
battery connectors.
2. Raise the front of the machine and place
jack stands under the frame.
3. Go into the operators compartment and
locate the lower steering shaft mount
assembly. Loosen the two screws and pull
the mount back to give the steering chain
slack.
4. Go under the machine and locate the
steering chain.
5. Rotate the steering wheel until the master
link on the chain is accessible.
6. Remove the chain master link. Remove the
steering chain from both sprockets.
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7. Loosen the set screws holding the small
sprocket to the lower shaft. Slip the small
sprocket off the shaft.
8. Install the new small sprocket on the lower
steering shaft. Firmly tighten the set screws.
9. Route the steering chain around both
steering sprockets. Install the master link.
10. Adjust the steering chain. See TO ADJUST
STEERING CHAIN instructions.
11. Remove the jack stands and lower the
machine.
12. Operate the machine and check the steering
for proper operation.
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TO REPLACE STEERING HOUSING
BEARINGS
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Jack up the front of the machine at the jack
point. Install jack stands under the machine
frame.
2. Turn the steering wheel all the way to the
left.
3. Go to the operators compartment and locate
the steering U--joint. Loosen the two set
screws on the top of the steering U--joint.
4. Pull the steering wheel and long steering
shaft up and out of the top of the steering
U--joint.
5. Remove the two hex screws holding the
steering bearing housing to the machine
frame. Push the bearing housing back in the
slots.
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6. Go under the machine and locate the small
steering chain sprocket.
7. Locate the master link on the steering chain.
Remove the master link and steering chain
from the small steering sprocket.
8. Remove the steering housing from the
machine.
9. Loosen the two set screws holding the
U--joint to the top of the short steering shaft.
Remove and retain the U--joint and square
key.
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10. Loosen the set screw holding the small
steering sprocket to the bottom of the short
steering shaft. Remove and retain small
sprocket and woodruff key.
11. Use an arbor press to press the short
steering shaft and two bearings out of the
housing. Discard the bearings. Retain the
short shaft.
NOTE: Note the orientation of the shaft in the
housing.
12. Use the arbor press to install the new
bearings into the steering housing.
13. Use the arbor press to install the short
steering shaft into the new bearings.
14. Reinstall the small steering sprocket and
woodruff key on the bottom of the steering
housing. Tighten the set screws tight.
15. Reinstall the U--joint and square key on the
top of the steering housing. Tighten the set
screws tight.
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16. Reinstall the steering housing in the
machine. Reinstall the two hex screws.
Leave loose for now.
17. Position the long steering shaft and steering
wheel into the top of the steering U--joint.
Tighten the set screws tight.
18. Go under the machine and reinstall the
steering chain around the small steering
sprocket. Reinstall the master link.
19. Turn the steering wheel all the way to the left
and then to the right. Find the point in the
rotation where the steering chain is the most
tight.
20. Push the bearing housing forward in the
slots. This will remove any excess slack in
the steering chain. Tighten the two hex
screws to 37 -- 48 Nm (26 -- 34 ft lb).
21. Remove the jack stands and lower the
machine to the floor. Operate the machine
and check the steering chain for proper
operation.
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TO REPLACE STEERING U--JOINT
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Jack up the front of the machine at the jack
point. Install jack stands under the machine
frame.
2. Go to the operators compartment and locate
the steering U--joint. Loosen the two set
screws on the top of the steering U--joint.
3. Pull the steering wheel and long steering
shaft up and out of the top of the steering
U--joint.
4. Loosen the two set screws holding the
U--joint to the top of the short steering shaft.
Remove and discard the U--joint and square
key.
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5. Install the new U--joint and square key on
the top of the steering housing. Tighten the
set screws tight.
6. Position the long steering shaft and steering
wheel into the top of the steering U--joint.
Tighten the set screws tight.
7. Operate the machine and check the steering
U--joint for proper operation.
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SEAT
OPERATOR SEAT
The standard operators seat is a fixed back style.
The seat can be adjusted forward and backward.
The operator seat is equipped with a switch that
prevents the machine from propelling unless
someone is sitting on it.
TO REMOVE SEAT ASSEMBLY
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Lift the seat assembly until the prop rod is
engaged.
2. Unplug the seat switch wire harness plug
from the main harness.
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3. Lift the seat assembly slightly and remove
theproprodfromtheslotintheproprod
bracket.
4. Slide the seat assembly to the right until is
off the two mount pins. Remove the seat
assembly from the machine.
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TO INSTALL SEAT ASSEMBLY
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Position the seat assembly in the operators
compartment.
2. Line up the two hinge pins on the seat
assembly and seat support. Slide the seat
assembly all the way on the pins.
3. Install the prop rod in the bracket slot.
4. Route the seat switch harness through the
hole in the seat support plate.
5. Plug the seat switch harness into the main
harness plug.
6. Disengage the prop rod and lower the seat
assembly.
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TO ADJUST SEAT POSITION
FOR SAFETY: Before Leaving Or
Servicing Machine; Stop On Level
Surface, turn key switch OFF.
1. Sit down on the seat in the operators
compartment.
2. Grasp the adjustment lever in the front
center of the seat.
3. Push the adjustment lever to the left.
4. Move the seat forward or backward until the
desired position is achieved.
5. Release the adjustment lever. The seat will
now be locked in the new position.
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PUSHING, TOWING, AND TRANSPORTING
THE MACHINE
PUSHING OR TOWING THE MACHINE
If the machine becomes disabled, it can be
pushed or towed from the front or rear.
The parking brake must be disabled before towing
or pushing the machine. To disable the brake, pull
the brake release lever to the guard and use a
cable tie to secure the lever to the guard. The
machine can move freely when the parking brake
is disabled.
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.
Immediately after pushing the machine, remove
the cable tie to enable the parking brake. Never
operate the machine with the parking brake
disabled.
FOR SAFETY: Do not operate machine
with brake disabled.
TRANSPORTING THE MACHINE
1. Position the rear of the machine at the
loading edge of the truck or trailer.
FOR SAFETY: Use truck or trailer that
will support the weight of the machine.
NOTE: Empty the recovery and solution tanks
before transporting the machine.
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2. 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.
3. To winch the machine onto the truck or
trailer, attach the winching chains to the rear
tie down locations. The rear tie-down
locations are the holes in the sides of the
machine frame near the rear bumper.
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.
4. Position the machine onto the truck or trailer
as far 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.
5. Lower the scrub head and block the
machine tires. Tie down the machine to the
truck or trailer before transporting.
The front tie-down locations are the holes in
the front side of the machine frame.
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The rear tie-down locations are the holes in
the sides of the machine frame near the rear
bumper.
6. 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.
MACHINE JACKING
Empty the recovery solution tanks before jacking
the machine. Jack up the machine from
underneath all four corners of the machine. Use a
hoist or jack that will support the weight of the
machine. Use a piece of wood between the jack
and frame to distribute the machine weight load.
Always stop the machine on a flat level surface
and block the tires before jacking the machine up.
FOR SAFETY: When servicing machine,
block machine tires before jacking
machine up.
FOR SAFETY: When servicing machine,
jack machine up at designated locations
only. Block machine up with jack
stands.
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STORAGE INFORMATION
The following steps should be taken when storing
the machine for extended periods of time.
1. Drain and clean the solution and recovery
tanks.
ES machines: Run clean water through the
solution system and the ES solution pump.
2. Park the machine in a cool, dry area.
3. Remove the batteries, or charge them every
three months.
FREEZE PROTECTION
1. Be sure the solution tank is empty.
2. Pour 3.8 L (1 gal) of RV antifreeze into the
solution tank.
3. Turn the machine power on.
4. Start the solution flow. Start the power wand
solution system and ES system to circulate
the antifreeze through the components.
5. The antifreeze does not need to be drained
from the solution tank.
NOTE: Storing or transporting machines equipped
with the ES or FaST system in freezing
temperatures requires special procedures.
Consult a TENNANT representative for more
information.
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198 T15 331555 (05-2007)
ELECTRICAL
NOTE: Troubleshooting charts may be shown with optional equipment.
The optional equipment may not be specified in these charts. Some machines
may not be equipped with all components shown.
BEFORE CONDUCTING TESTS:
DURING TESTS:
* Read and Follow ALL Safety Warnings and Precautions as
mentioned at the beginning of this manual
* Always use an ESD (Electrostatic Discharge) strap when working
near the Control Board
* Be cautious when working near Control Board – Battery voltage is
always present, even with Key OFF
* Always unhook Battery when removing or replacing components
* Call Technical Services if Diagnostic Time Exceeds One Hour With
Unknown Cause or Course of Action
Troubleshooting Information
T15
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T15 331555 (05-2007) 199
1037934
T15 Electrical Schematic
(Page 1 of 3)
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200 T15 331555 (05-2007)
x
1037934
T15 Electrical Schematic
(Page 2 of 3)
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T15 331555 (05-2007) 201
1037934
T15 Electrical Schematic
(Page 3 of 3)
FaST System
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202 T15 331555 (05-2007)
1
T15 Harness Drawings
(Page 1 of 8)
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T15 331555 (05-2007) 203
T15 Harness Drawings
(Page 2 of 8)
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204 T15 331555 (05-2007)
1
1
T15 Harness Drawings
(Page 3 of 8)
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T15 331555 (05-2007) 205
1
1
T15 Harness Drawings
(Page 4 of 8)
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206 T15 331555 (05-2007)
CB8
CB9
30 AMP
30 AMP
OR 40 AMP
2
4
5
3
5
354542, 354548
Ref. Serial Number Description Qty.
1(000000-- )Harness, Main [T15] 1
2 (000000-- ) Cable, 06ga 07.0l Blk .28ring /.34ring 1
3 (000000-- ) Cable, 06ga 11.0l Blk .28ring /.34ring 1
4 (000000-- ) Cable, 06ga 07.0l Blk .34ring /.34ring 1
5(000000-- )Diode, Ele, Plug 8
T15 Harness Drawings
(Page 5 of 8)
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T15 331555 (05-2007) 207
1
354214
Ref. Serial Number Description Qty.
1(000000-- )Harness 1
2 (000000-- ) Diode, Ele, Plug 2
T15 Harness Drawings
(Page 6 of 8)
FaST Harness
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2
Pre--Sweep Wire Harness
T15 Harness Drawings
(Page 7of 8)
Ref. Serial Number Description Qty.
1(000000-- ) Harness, Swpr 1
2 (000000-- ) Diode,Ele,Plug 2
(000000-- ) Tie,Cable,6.0l,1.25d 3
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T15 331555 (05-2007) 209
12
2
Side Brush Wire Harness
2
3
1
353425 -- NA
Ref. Serial Number Description Qty.
1(000000-- )Harness, Sba, Rh 1
2 (000000-- ) Harness, Sba, Retrofit 1
3 (000000-- ) Diode, Ele, Plug 1
(000000-- ) Tie, Cable, 6.0l, 1.25d Max 4
T15 Harness Drawings
(Page 8 of 8)
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210 T15 331555 (05-2007)
Abbreviations
Commonly Used Electrical Symbols & Terms
NOTE: The term “NORMALLY” refers to the component’s “at rest” or “de-energized” position
+-
Battery
Fuse
Normally Open
Switch
Motor
Solenoid
Valve
Horn or
Alarm
Wires Connected
Together
Component
is Energized
Plug-in
Connection
Diode
Wires Not
Connected
Together
Movement from
Normal Position
Component in Position
Other than Normal
Battery Positive
or Positive Output
Battery Negative
or Logic Ground
LED
Relay Contacts
Open Closed
InformationWarning!
Information
Box
Assembly
Normally Open
Liquid Level Switch
Lamp
(Light Bulb)
M2A
Relay Coil with spike
suppression diode
Resistor
Connection TO or
FROM Another Point
P2-11 P2-35
Control
Board Input
Control
Board Output
i
30
83
15
75
50
Normally Open
Pressure Switch
Normally Closed
Push-Button Switch
Ignition Switch
Motor Field
Coil
!
Circuit Breaker
11/BRN
Wire Number
& Color
FuseFU
Extended ScrubES
Relay CoilM
Light Emitting DiodeLED
ArmatureARM
Foam Scrubbing TechnologyFaST
Hour MeterHM
diodeD
Circuit BreakerCB
ActuatorACT
SwitchS or SW
Connector PinP
Volts DCVDC
VacuumVAC
MotorMTR
ResistorR
Solenoid ValveSV
Normally OpenN.O.
Normally ClosedN.C.
Millimetermm
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T15 331555 (05-2007) 211
T15 Key Switch
75
START
RUN
OFF
15835030
SWITCH TERMINAL MARKING
SWITCH POSITION
Common connections in various switch positions should be less than 1ȍ
“ . ” Indicates a common connection
Spring loaded-Returns
to “RUN" when released
30
83
15
75
50
OFF POSITION
START
RUN
OFF
KEY SWITCH
START
RUN
OFF
KEY SWITCH
START
RUN
OFF
KEY SWITCH
i
30
83
15
75
50
RUN POSITION
30
83
15
75
50
START POSITION
E
212 T15 331555 (05-2007)
TO CIRCUIT
BREAKER CB7
M1B
M3B
M2B
TO CIRCUIT
BREAKER CB8
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
T15 Key OFF Power Distribution
Conditions: Key OFF
+-
6 VDC +-
6 VDC +-
6 VDC +-
6 VDC
+-
6 VDC +-
6 VDC
FU1 80A
(100 A w/
Sweeper
unit)
1/RED
1/RED 2/ORA
13/BLK
1/RED 4/YEL
4/YEL
4/YEL
TO CIRCUIT
BREAKER CB9
7/PUR
D2
5/BRN 8/BLU
MACHINE CONTROL BOARD
30
83
15
75
50
X
X
CB1
10A
TO CIRCUIT BREAKERS
CB3,CB4,CB5,CB6,CB10 &
PROPEL CONTROLLER
6/BLU
35/GRN
D1
25/GRY
TO EMERGENCY
STOP SWITCH S2
26/ORA
25/GRY 13/BLK
13/BLK
13/BLK
25/GRY
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
KEY SWITCH S1
OFF
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
TO CIRCUIT
BREAKER CB11
CB2
10A
5/BRN
P4-11 P3-3
P3-8
P4-5
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T15 331555 (05-2007) 213
D8
27/GRN 13/BLK
TO CIRCUIT
BREAKER CB7
TO CIRCUIT
BREAKER CB8
T15 Key START Power Distribution
Conditions: Key in START
+-
6 VDC +-
6 VDC +-
6 VDC +-
6 VDC
+-
6 VDC +-
6 VDC
1/RED
1/RED 2/ORA
13/BLK
1/RED 4/YEL
4/YEL
4/YEL
TO CIRCUIT
BREAKER CB9
7/PUR
D2
5/BRN 8/BLU
MACHINE CONTROL BOARD
30
83
15
75
50
X
X
CB1
10A
35/GRN
D1
25/GRY
25/GRY
13/BLK
13/BLK
13/BLK
KEY SWITCH S1
START
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
THROTTLE
(foot pedal)
PROPEL CONTROLLER
13/BLK
13/BLK
26/ORA
13/BLK27/GRN M1A
EMERGENCY
STOP SWITCH
S2
27/GRN
27/GRN
27/GRN P9
P16
A
CB2
10A
B-
D
F
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
TO CIRCUIT BREAKERS
CB3,CB4,CB5,CB6,CB10 &
PROPEL CONTROLLER
6/BLU
iKey MUST be put into START position to energize Main Contactor coil (M1A)
This diagram shows how M1A receives power before the contacts (M1B) close
M1B
M3B
M2B
FU1 80A
(100 A w/
Sweeper
unit)
TO CIRCUIT
BREAKER CB11
5/BRN
P3-3
P3-8
P4-5
P4-11
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214 T15 331555 (05-2007)
27/GRN 13/BLK
TO CIRCUIT
BREAKER CB7
M1B
TO CIRCUIT
BREAKER CB8
T15 Key ON Power Distribution
Conditions: Key in RUN (after START)
+-
6 VDC +-
6 VDC +-
6 VDC +-
6 VDC
+-
6 VDC +-
6 VDC
FU1 80A
(100 A w/
Sweeper unit)
1/RED
1/RED 2/ORA
13/BLK
1/RED 4/YEL
4/YEL
4/YEL
TO CIRCUIT
BREAKER CB9
7/PUR
D2
5/BRN 8/BLU
MACHINE CONTROL BOARD
30
83
15
75
50
X
X
CB1
10A
TO CB3,CB4,
CB5,& CB10
6/BLU
35/GRN
D1
25/GRY
25/GRY
13/BLK
13/BLK
13/BLK
KEY SWITCH S1
RUN
25
(B+)
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
THROTTLE
(foot pedal)
PROPEL CONTROLLER
13/BLK
13/BLK
25
(B+)
26/ORA
13/BLK27/GRN M1A
EMERGENCY
STOP SWITCH
S2
27/GRN
27/GRN
27/GRN P9
P16
A
6/BLU
6/BLU
CB2
10A
M-
B+
B-
D
F
PROPEL MOTOR
6/BLU
M3B
M2B
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
iKey MUST be put into START position before switching to the RUN position
to energize Main Contactor coil (M1A)
10/YEL
CB6
15A
10/YEL
10/YEL
10/YEL
TO CIRCUIT
BREAKER CB11
5/BRN
25/GRY
D8
P3-2
P3-7
P4-1
P4-11
P3-3
P3-8
P4-5
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T15 331555 (05-2007) 215
F U --- 1 I S O P E N O R
CABLE OPEN FROM
FU---1 TO M1 CONTACTOR
6/BLU, CB--- 1, 35/GRN, D---1,
7/PUR, OR KEY SWITCH PINS 30
TO PIN 15 ARE OPEN
1/RED, FU--1, 5/BRN,
CB--2, 8/BLU, D--2, OR
25/GRY ARE OPEN
CHECK FOR BATTERY
VOLTAGE ON 25/GRY AT KEY
SWITCH
OPERATION: Key switch to
to start position-- Current flows into key switch terminal 50
Current flows out of key switch terminal 15, turning on M1 contactor
and powering up the machine.
Release key to
run position-- Current flows through closed M1 contacts, into key switch pin 30.
Current flows out of key switch terminal 15, holding M1 contactor on,
keeping machine powered up.
Key switch to
off position-- M1 is turned off by key switch or emergency stop switch.
Machine turns off.
KEY SWITCH OFF
BATTERY
VOLTAGE OVOLTAGE
TURN AND HOLD KEY SWITCH
TO THE START POSITION
CHECK FOR BATTERY VOLTAGE
ON 27/GRN AT M1
BATTERY
VOLTAGE
OVOLTAGE
KEY SWITCH PINS 50 TO 15
26/ORA, S--- 2, OR 27/GRN
ARE OPEN
KEY IN START POSITION
CHECK FOR VOLTAGE
ACROSS M1 COIL
27/GRN TO 13D/BLK
OVOLTAGE
BATTERY
VOLTAGE
13D/BLK IS OPEN
KEY IN START POSITION
CHECK VOLTAGE AT M1
WIRES 5/BRN AND
6/BLU
O VOLTAGE ON EITHER
B+ ON ONE
SIDE ONLY
VOLTAGE ON
BOTH WIRES
REPLACE M1
RELEASE KEY TO START
POSITION, CHECK FOR
VOLTAGE AT M1 WIRES
6/BLU AGAIN
BATTERY
VOLTAGE
MACHINE IS
POWERED UP
O VOLTAGE ON EITHER
T15 Power Up Troubleshooting
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216 T15 331555 (05-2007)
RIBBON CABLE (2)
P3--1
P2--12
P2--11
P2--10
P2--9
P2--8
P2--7
P2--6
P2--5
P2--4
P2--3
P2--2
P2--1
GND.
SCRUB
SQ/VAC
BAT.4
BAT.1
BAT.3
REC.TANK FULL
P2--14
10F/YEL
6A/BLU
CB--6
15A
13AF/BLK
13C/BLK
13B/BLK
13A/BLK
10C/YEL
10B/YEL
10A/YEL
P4--9
P4--10
BATTERIES
P3--9
P3--14 2.3 AMPS
P3--5
P3--4
P3--15
P3--10
P3--13
P3--11
P3--12
P4--1
P3--7
P3--2
P4--11
P4--2
P4--3
P4--5
P3--8
P3--3
P5--1
P5--2
P5--3
P4--7
P4--6
REV SENSE
FWD SENSE
INPUTS
SHUNT GROUND
+36VDC
SHIELD
DOWN PRES.1
BAT.2
SQ/VAC
ES
DOWN PRES.4
+5VDC
DOWN PRES.2
DOWN PRES.3
FU--1
CIRCUIT BOARD
ELECTRONIC CONTROL
P2--13
P2--12
P2--9
P2--8
P2--3
P2--4
P2--
P2--6
P2--7
P2--5
P1--6
P1--4
P1--2
P1--1
PANEL LEDS
GROUND
PANEL SWITCHES
CONTROL
POWER
POWER
CONTROL
POWER
POWER
P1--6
P1--4
P1--2
P1--1
MEMBRANE TOUCH PANEL
M1
MAIN
80A
+36VDC
6VDC6VDC6VDC6VDC6VDC6VDC
ES/FaST
P2--10
P2--11
T15 Touch Panel Wiring
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T15 331555 (05-2007) 217
VERIFY BATTERY VOLTAGE ON:
--10A/YEL AT P3--2 OF CONTROL
BOARD
--10B/YEL AT P3--7 OF CONTROL
BOARD
--10C/YEL AT P4--1 OF CONTROL
BOARD
ACTIVATE EACH SWITCH
DOES THE ASSOCIATED
LIGHT/LIGHTS TURN ON
THEN OFF ?
OPERATIONOFLED’S:
DP2-- 1 = Supplies +5VDC to each LED
DP2-- through P2--1 will light an LED if they are pulled to
ground by the control board
OPERATION OF SWITCHES:
DP1 -- 1 = Supplies ground to each switch
DP1-- 2 = Switched to ground when the ES switch is activated
DP1--4 = Switched to ground when the Scrub button is activated
DP1-- 6 = Switched to ground when the Squeegee button is activated
KEY SWITCH ON
:MACHINE POWERS UP AND PROPELS
DO ALL THE LIGHTS ON THE TOUCH
PANELTURNONTHENOFF?
YES NO
LED’S OK
YES
PANEL OK
NO
CHECK RIBBON CABLE
AT THE CONTROL
BOARD
OK
REPLACE
TOUCH
PANEL
DO SOME OF THE
LED’S TURN ON ?
YES
REPLACE
TOUCH
PANEL
VERIFY TOUCH PANEL
IS CONNECTED TO
CONTROL BOARD
NO
YES
VERIFY GROUNDS ON:
--13A/BLK AT P3--3 OF CONTROL
BOARD
--13B/BLK AT P3--8 OF CONTROL
BOARD
--13C/BLK AT P4--5 OF CONTROL
BOARD
NEXT
OK
REPLACE
TOUCH
PANEL
P3--1
44
T15 Touch Panel Troubleshooting
E
218 T15 331555 (05-2007)
T15 Scrub Brushes ON
Conditions: Key ON, operator on seat, scrubbing system ON, propel forward or reverse
M3B
+-
6 VDC +-
6 VDC +-
6 VDC +-
6 VDC
+-
6 VDC +-
6 VDC
1/RED 13/BLK
1/RED
4/YEL
D4
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
CB8
25A
13/BLK
13/BLK
RIGHT BRUSH
MOTOR
62/BLU
62/BLU
62/BLU
64/PUR
CB9
25A
22/BRN
62/BLU
64/PUR
64/PUR
22/BRN
66/GRN 66/GRN
TO CIRCUIT
BREAKER CB7
1/RED 2/ORA
LEFT BRUSH
MOTOR
RESISTOR
PLATE
SHUNT ASSEMBLY
MACHINE CONTROL BOARD
22/BRN
64/PUR
62/BLU 13/BLK
88/BLK
87/CLR
88/BLK
87/CLR
88/BLK
87/CLR
12/GRN
SWITCHED B+
FROM CB6
UNSWITCHED
B+ TO FU1
D3
iBrush Motor Fault Sense
Line – Battery negative
input to Machine Control
Board if CB8 or CB9 opens
i
Brush Motor Current: 15 to 20 Amps each at maximum down pressure
Shunt Resistor Voltage: 1.14 millivolt per Amp of combined Brush Motor
current, measured at Pins P5-2 and P5-3
Shunt signal wires 88/BLK & 87/CLR are inside a cable shield to prevent
false signaling
M3A
TO PROPEL
CONTROLLER PIN P14 12/GRN
42/BRN
D9
iProvides Battery negative
input during scrubbing to
limit maximum propel speed
10/YEL
13/BLK
12/GRN
M2B
D6
D7
13/BLK
13/BLK
CABLE
SHIELD
P3-11
P5-1
P5-2
P5-3
P4-10
4/YEL
E
T15 331555 (05-2007) 219
M2B
+-
6 VDC +-
6 VDC +-
6 VDC +-
6 VDC
+-
6 VDC +-
6 VDC
1/RED 13/BLK
1/RED
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
CB7
20A
(40A w/ dual
Vacuum Fans)
3/GRY
MACHINE CONTROL BOARD
SWITCHED B+
FROM CB6
UNSWITCHED
B+ TO FU1
iVacuum Fan Motor Current: 17 Amps each (+/- 10%)
When the Recovery Tank is FULL, the Scrubbing System
and Vacuum Fan(s) will turn OFF, and the Squeegee will
raise after a short time delay
The Hour Meter is energized when vacuum fan(s) are
running or anytime during forward or reverse propel
M2A
10/YEL 11/BRN
T15 Vacuum Fan(s) ON & Squeegee DOWN
Conditions: Key ON, squeegee/vacuum ON, propel forward or neutral, recovery tank NOT FULL
TO CIRCUIT
BREAKER CB8
1/RED 4/YEL
4/YEL
4/YEL
TO CIRCUIT
BREAKER CB9
M3B
1/RED
VACUUM FAN
MOTOR(S)
13/BLK
13/BLK
13/BLK
3/GRY
3/GRY
16/YEL
17/GRY
17/GRY
SQUEEGEE ACTUATOR
DOWN
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
13/BLK
24/GRY
S4
RECOVERY TANK
FULL SWITCH
HOUR METER
10/YEL 41/BLU
P3-12
P3-9
P3-10
P3-15
P4-3
2/ORA
E
220 T15 331555 (05-2007)
M2B
+-
6 VDC +-
6 VDC +-
6 VDC +-
6 VDC
+-
6 VDC +-
6 VDC
1/RED 13/BLK
1/RED
2/ORA
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
CB7
20A
(40A w/ dual
Vacuum Fans)
3/GRY
MACHINE CONTROL BOARD
SWITCHED B+
FROM CB6
UNSWITCHED
B+ TO FU1
iReverse propel will raise the squeegee immediately and turn
OFF vacuum fan(s) after a short time delay; neutral or forward
propel will restart the vacuum fan(s) and re-lower the squeegee
When the Recovery Tank is FULL, the Scrubbing System
and Vacuum Fan(s) will turn OFF, and the Squeegee will
raise after a short time delay
The Hour Meter is energized when vacuum fan(s) are running or
anytime during forward or reverse propel
M2A
10/YEL 11/BRN
T15 Vacuum Fan(s) OFF & Squeegee UP
Conditions: Key ON, scrubbing system OFF or squeegee/vacuum OFF or reverse propel or recovery tank FULL
TO CIRCUIT
BREAKER CB8
1/RED 4/YEL
4/YEL
4/YEL
TO CIRCUIT
BREAKER CB9
M3B
1/RED
VACUUM FAN
MOTOR(S)
13/BLK
13/BLK
13/BLK
3/GRY
3/GRY
16/YEL
17/GRY
17/GRY
SQUEEGEE ACTUATOR
UP
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
13/BLK
24/GRY
S4
RECOVERY TANK
FULL SWITCH
HOUR METER
10/YEL 41/BLU P4-3
P3-12
P3-9
P3-10
P3-15
E
T15 331555 (05-2007) 221
VERIFY THAT 11/BRN
IS NOT SHORTED TO
GROUND, THEN,
REPLACE THE
CONTROL BOARD
--- LOW BATTERY=#1 BATTERY LED BLINKING
--- RECOVERY TANK FULL= RED OVERFLOW
LED ON
KEY SWITCH ON
AREANYOFTHEFOLLOWING
CONDITIONS TRUE ?
OPERATION: To enable the vacuum fan, the following conditions must occur--
D1.-- Vacuum fan/squeegee system selected on the touch panel
D2. -- Machine in neutral or forward position
D3.-- No ”low battery” condition sensed
D4.-- No ”full recovery tank” condition sensed
VACUUM MOTOR TURNS ON:
D1.-- 11/BRN is switched to ground at control board P3--12,
turning on M2 contactor
D2.-- M2 contactor supplies battery voltage to the vacuum fan(s),
turning them on
:MACHINE POWERS UP, TOUCH PANEL
AND PROPEL SYSTEMS TEST GOOD
YES NO
CHARGE BATTERIES OR
DRAIN RECOVERY TANK RUN SELF TEST DIAGNOSTIC SOFTWARE
--HOLD SQ/VAC BUTTON
--TURN ON KEY
--RELEASE BUTTON AFTER 5 SEC
--BATTERY LED #4 WILL BLINK IN THIS MODE
--LET MACHINE RUN UNTIL ONE RED (FAIL)
OR GREEN (PASS) LIGHT COMES ON
GREEN
(PASS)
RED
(FAIL)
CIRCUIT BOARD VACUUM
FAN OUTPUT TEST GOOD
DID FAN TURN ON/OFF
DURING SELF TEST ?
NO
RUN MANUAL MODE TO
TEST THE LOADS
READ ERROR CODES BY HOLDING
DOWN EACH OF THE 3 TOUCH PANEL
SWITCHES
--IS THERE A VAC FAN OUTPUT ERROR ? NO
YES
DISCONNECT 11/BRN AT M3 CONTACTOR
RE--RUN THE SELF TEST
GREEN
(PASS)
RED
(FAIL)
REPLACE M3
CONTACTOR
YES
SEE NEXT PAGE....
RUN INPUT
TEST MODE
SEE NEXT PAGE....
T15 Vacuum Fan Troubleshooting
E
222 T15 331555 (05-2007)
ACTIVATE SQUEEGEE/VAC FAN
TOUCH PANEL BUTTON
--- DOES THE VAC FAN TURN
ON ?
CONTINUED FROM PREVIOUS PAGE CONTINUED FROM PREVIOUS PAGE
RUN MANUAL MODE TO
TEST THE LOADS RUN INPUT
TEST MODE
--- HOLD SCRUB BUTTON
--- T U R N O N K E Y
--- RELEASE SCRUB BUTTON AFTER
5SEC
---#2 DOWN PRESS LIGHT WILL
BLINK IN INPUT MODE
IS BATTERY LED #2 ON ?
(SECOND FROM LEFT)
NO
MACHINE TESTS GOOD
AT P4---7 IS SWITCHED
TO --- --- THIS SHOULD ONLY
H A P P E N I N R E V E R S E --- --- G O T O
PROPEL SYSTEM TESTING
YES
--- H O L D
--- T U R N K E Y O N
--- R E L E A S E B U T T O N A F T E R
5SEC
--- # 3 B A T T E R Y L E D W I L L
BLINK IN MANUAL MODE
NO
YES
GO TO INPUT TESTING MODE
CHECK FOR BATTERY VOLTAGE
FROM:
---3A/GRY TO 13AF/BLK AT THE
VAC FAN
0VOLTAGE
BATTERY
VOLTAGE
REPLACE VAC FAN
THE CONTROL BOARD IS SWITCHING
11/BRN AT P3---12 TO GROUND TO
T U R N O N M 2 --- --- M 2 I S B A D O R
--- 10D/YEL, 11/BRN, 1A/ORA, CB--- 7,
3/GRY, OR 13AF/BLK ARE OPEN
ES/FaST BUTTON
29A/GRY
36 VDC
T15 Vacuum Fan Troubleshooting (cont'd)
E
T15 331555 (05-2007) 223
IF THE ERROR = ”NO SQUEEGEE STALL”
(SQUEEGEE BUTTON HELD----DOWN PRESSURE
#1 AND #2 ARE ON
16/YEL, 17/GRY, OR SQUEEGEE ACTUATOR ARE
OPEN
IF THE ERROR = ”EARLY SQUEEGEE STALL”
(SQUEEGEE BUTTON HELD----DOWN PRESSURE #2
LIGHT ON
--DISCONNECT SQUEEGEE ACTUATOR AND RETEST
--ERROR STILL EXISTS----VERIFY WIRE 16/YEL AND
17/GRY ARE NOT SHORTED TO GROUND
THEN REPLACE THE CONTROL BOARD
CIRCUIT BOARD
SQUEEGEE OUTPUTS
TEST GOOD
--- LOW BATTERY=#1 BATTERY LED BLINKING
--- RECOVERY TANK FULL= RED OVERFLOW
LED ON
KEY SWITCH ON
AREANYOFTHEFOLLOWING
CONDITIONS TRUE ?
OPERATION: To lower the squeegee actuator, the following conditions must occur--
D1.-- Vacuum fan/squeegee system selected on the touch panel
D2. -- Machine in neutral or forward position
D3.-- No ”low battery” condition sensed
D4.-- No ”full recovery tank” condition sensed
SQUEEGEE ACTUATOR EXTEND OR RETRACT:
D1.-- 16/YEL at P3-- 10 and 17/GRY at P3-- 15 are both at battery
voltage in the off position
D2.-- Is pulsed low to extend, is pulsed
low to retract the squeegee actuator
YES NO
CHARGE BATTERIES OR
DRAIN RECOVERY TANK RUN SELF TEST DIAGNOSTIC SOFTWARE
--HOLD SQ/VAC BUTTON
--TURN ON KEY
--RELEASE BUTTON AFTER 5 SEC
--BATTERY LED #4 WILL BLINK IN THIS MODE
--LET MACHINE RUN UNTIL ONE RED (FAIL)
OR GREEN (PASS) LIGHT COMES ON
RED
(FAIL)
GREEN
(PASS)
DID SQUEEGEE LOWER/RAISE
DURING SELF TEST ?
NO
RUN MANUAL MODE TO
TEST THE LOADS
READ ERROR CODES BY HOLDING
DOWN EACH OF THE 3 TOUCH PANEL
SWITCHES
--ARE THERE ANY SQUEEGEE OUTPUT
ERRORS ?
NO
YES
YES
SEE NEXT PAGE....
RUN INPUT
TEST MODE
SEE NEXT PAGE....
:MACHINE POWERS UP, TOUCH PANEL
AND PROPEL SYSTEMS TEST GOOD
IF THE ERROR = ”NO SQUEEGEE ACTUATOR
ZERO CURRENT” (SQUEEGEE BUTTON
HELD----DOWN PRESSURE #1 LIGHT ON
--REPLACE THE CONTROL BOARD
T15 Squeegee Troubleshooting
E
224 T15 331555 (05-2007)
ACTIVATE SQUEEGEE/VAC FAN
TOUCH PANEL BUTTON
---DOES THE SQUEEGEE
ACTUATOR LOWER ?
CONTINUED FROM PREVIOUS PAGE CONTINUED FROM PREVIOUS PAGE
RUN MANUAL MODE TO
TEST THE LOADS RUN INPUT
TEST MODE
--- HOLD SCRUB BUTTON
--- T U R N O N K E Y
--- RELEASE SCRUB BUTTON AFTER
5SEC
---#2 DOWN PRESS LIGHT WILL
BLINK IN INPUT MODE
IS BATTERY LED #2 ON ?
(SECOND FROM LEFT)
NO
MACHINE TESTS GOOD
AT P4---7 IS SWITCHED
TO --- --- THIS SHOULD ONLY
H A P P E N I N R E V E R S E --- --- G O T O
PROPEL SYSTEM TESTING
YES
--- HOLD ES BUTTON
--- T U R N K E Y O N
--- R E L E A S E B U T T O N A F T E R
5SEC
--- # 3 B A T T E R Y L E D W I L L
BLINK IN MANUAL MODE
NO
YES
GO TO INPUT TESTING MODE
0VOLTAGE
BATTERY VOLTAGE
O R --- B A T T E R Y
VOLTAGE
REPLACE ACTUATOR
DISCONNECT SQUEEGEE ACTUATOR
MEASURE VOLTAGE FROM 16/YEL TO
17/GRY AT SQUEEGEE ACTUATOR
16/YEL OR 17/GRY ARE OPEN
29A/GRY
36 VDC
T15 Squeegee Troubleshooting (cont'd)
E
T15 331555 (05-2007) 225
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
MACHINE CONTROL BOARD
P3-13
SWITCHED B+
FROM CB6
i
During Scrubbing, when machine is not being propelled (in neutral), the
Conventional Solution Valve will turn OFF, the Scrub Brushes will turn OFF,
and the Scrub Head Actuator will slightly lift the Scrub Head after a short time delay
The Hour Meter is energized when vacuum fan(s) are running or anytime during
forward or reverse propel
10/YEL 15/PUR
T15 Scrub Head DOWN & Conventional Solution Valve ON
Conditions: Key ON, operator on seat, scrubbing system ON, recovery tank NOT FULL, propel forward or reverse
18/BRN
19/GRN
19/GRN
SCRUB HEAD ACTUATOR
DOWN
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
13/BLK
24/GRY
S4
RECOVERY TANK
FULL SWITCH
HOUR METER
10/YEL 41/BLU
BATTERY
NEGATIVE
CONVENTIONAL SOLUTION VALVE
P3-9
P3-4
P3-5
P4-3
E
226 T15 331555 (05-2007)
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
MACHINE CONTROL BOARD
P3-13
SWITCHED B+
FROM CB6
i
During Scrubbing, when machine is not being propelled (in neutral), the
Conventional Solution Valve will turn OFF, the Scrub Brushes will turn OFF,
and the Scrub Head Actuator will slightly lift the Scrub Head after a short time delay
The Hour Meter is energized when vacuum fan(s) are running or anytime during
forward or reverse propel
10/YEL 15/PUR
T15 Scrub Head UP
Conditions: Key ON, scrubbing system OFF or recovery tank FULL
18/BRN
19/GRN
19/GRN
SCRUB HEAD ACTUATOR
UP
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
13/BLK
24/GRY
S4
RECOVERY TANK
FULL SWITCH
HOUR METER
10/YEL 41/BLU
BATTERY
NEGATIVE
CONVENTIONAL SOLUTION VALVE
P3-9
P3-4
P3-5
P4-3
E
T15 331555 (05-2007) 227
T15 Forward Propel
Conditions: Key ON, operator on seat, throttle depressed for forward travel
E
228 T15 331555 (05-2007)
PROPEL MOTOR
BA
T
NE
G
PROPEL CONTROLLER
SWITCHED B+
FROM M1B
SWI
T
IGNI
T
LO
W
SIG
N
OR
(B-
W
BLACK
PROPEL
MOTOR
T
TERY
G
ATIVE
M-
S1
BLACK
WHITE
WHITE
BLACK BLACK
S2
FIELD
T
CHED B+ FROM
T
ION SWITCH
W
SPEED ENABLE
N
AL FROM SWEEP
SCRUB MOTOR
W
HEN MOTOR ON)
B+
EMERGENCY
STOP SWITCH
S2
26/ORA
27/GRN P16
P14 42/BRN
ELECTRIC BRAKE
SOLENOID
27/GRN
BLACK
P8
66/BLU
BLACK
B-
P6
27/GRN 27/GRN P9
31/YEL
27/GRN 32/ORA
P15
98/GRY
BRAKE
SW2
27/GRN
SEAT SWITCH
S3
X
SWITCH
P12
28/BRN
P11
29/GRY
iB = 36V Reverse Output
C = 36V Forward Output
E = 0-5VDC Pedal Position
Output
S3
MACHINE CONTROL
BOARD
E
28/BRN
C
B
28/BRN
29/GRY
31/YEL
29/GRY
P4-6
P4-7
Wiring Color Codes
RED
BLK
GR
Y
Red
Black
Gra
y
Abbreviation Color of Wire
WHT White
A D
F
THROTTLE
(foot pedal)
27/GRN
13/BLK
13/BLK
13/BLK
29/GRY M6A 13/BLK
SWITCHED B+
M6B
13/BLK
9/BRN
40/ORA
BLU
PUR
ORA
YEL
GRN
BRN
PNK
y
Blue
Purple
Orange
Yellow
Green
Brown
Pink
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
!
Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
FROM CB4
13/BLK
BACK-UP ALARM
9/BRN
40/ORA
T15 Reverse Propel
Conditions: Key ON, operator on seat, throttle depressed for reverse travel
E
T15 331555 (05-2007) 229
BA
T
NE
G
PROPEL CONTROLLER
SWI
T
IGNI
T
LO
W
SIG
N
OR
(B-
W
PROPEL MOTOR
SWITCHED B+
FROM M1B
BLACK
T
TERY
G
ATIVE
T
CHED B+ FROM
T
ION SWITCH
W
SPEED ENABLE
N
AL FROM SWEEP
SCRUB MOTOR
W
HEN MOTOR ON)
PROPEL
MOTOR
M-
S1
BLACK
WHITE
WHITE
BLACK BLACK
S2
FIELD
S2
26/ORA
P14 42/BRN
B+
BLACK
EMERGENCY
STOP SWITCH 27/GRN P16
ELECTRIC BRAKE
SOLENOID
27/GRN P8
66/BLU
BRAKE
X
BLACK
B-
P6
31/YEL
27/GRN 32/ORA
P15
98/GRY
SEAT SWITCH
S3
27/GRN 27/GRN P9
27/GRN
SW2
SWITCH
P12
28/BRN
P11
29/GRY
iB = 36V Reverse Output
C = 36V Forward Output
E = 0-5VDC Pedal Position
Output
S3
MACHINE CONTROL
BOARD
E
28/BRN
C
B
28/BRN
29/GRY
31/YEL
29/GRY
P4-6
P4-7
Wiring Color Codes
RED
BLK
GR
Y
Red
Black
Gra
y
Abbreviation Color of Wire
WHT White
A D
F
THROTTLE
(foot pedal)
27/GRN
13/BLK
13/BLK
13/BLK
M6A 13/BLK
SWITCHED B+
M6B
13/BLK
29/GRY
9/BRN
40/ORA
BLU
PUR
ORA
YEL
GRN
BRN
PNK
y
Blue
Purple
Orange
Yellow
Green
Brown
Pink
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
!
Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
FROM CB4
13/BLK
BACK-UP ALARM
9/BRN
40/ORA
T15 Neutral (No Propel) with Brake Pedal Depressed
Conditions: Key ON, operator on seat, throttle NOT depressed, brake pedal depressed
E
230 T15 331555 (05-2007)
BA
T
NE
G
PROPEL CONTROLLER
SWI
T
IGNI
T
LO
W
SIG
N
OR
(B-
W
PROPEL MOTOR
SWITCHED B+
FROM M1B
BLACK
T
TERY
G
ATIVE
T
CHED B+ FROM
T
ION SWITCH
W
SPEED ENABLE
N
AL FROM SWEEP
SCRUB MOTOR
W
HEN MOTOR ON)
PROPEL
MOTOR
M-
S1
BLACK
WHITE
WHITE
BLACK BLACK
S2
FIELD
EMERGENCY
STOP SWITCH
S2
26/ORA
P14 42/BRN
B+
BLACK
27/GRN P16
P8
ELECTRIC BRAKE
SOLENOID
27/GRN 66/BLU
BLACK
B-
P6
31/YEL
SEAT SWITCH
27/GRN 32/ORA
P15
98/GRY
BRAKE
S3
SW2
27/GRN 27/GRN P9
27/GRN
X
BRAKE
SWITCH
S3
P12
28/BRN
P11
29/GRY
iB = 36V Reverse Output
C = 36V Forward Output
E = 0-5VDC Pedal Position
Output
MACHINE CONTROL
BOARD
E
28/BRN
C
B
28/BRN
29/GRY
31/YEL
29/GRY
P4-6
P4-7
Wiring Color Codes
RED
BLK
GR
Y
Red
Black
Gra
y
Abbreviation Color of Wire
WHT White
A D
F
THROTTLE
(foot pedal)
27/GRN
13/BLK
13/BLK
13/BLK
M6A 13/BLK
SWITCHED B+
M6B
13/BLK
9/BRN
40/ORA
29/GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
y
Blue
Purple
Orange
Yellow
Green
Brown
Pink
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
!
Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
FROM CB4
13/BLK
BACK-UP ALARM
9/BRN
40/ORA
DIAGNOSTICS AND TROUBLESHOOTING
The propel controller provides diagnostics information to assist technicians in
troubleshooting drive system problems. The diagnostics information can be obtained
by the fault codes issued by a Status LED. Refer to the Propel Controller
Troubleshooting Chart for suggestions covering a wide range of possible faults.
The Status LED is built into the propel controller. It is visible through a window in the
label on top of the controller. This Status LED displays fault codes when there is a
problem with the controller or with the inputs to the controller. During normal
operation, with no faults present, the Status LED flashes steadily on and off. If the
controller detects a fault, a 2-digit fault identification code is flashed continuously until
the fault is corrected. For example, code “3,2”— main contactor welded—appears as:
(3 , 2) (3 , 2) (3 , 2)
Only one fault is indicated at a time, and faults are not queued up. Refer to the
troubleshooting chart for suggestions about possible causes of the various faults.
TOP OF PROPEL CONTROLLER
Status LED
T15 Propel Controller
(page 1 of 3)
E
T15 331555 (05-2007) 231
LED PROGRAMMER FAULT
CODE LCD DISPLAY CATEGORY POSSIBLE CAUSE FAULT CLEARANCE
0,1 NO KNOWN FAULTS 0 n/a n/a
1,1 CURRENT SHUNT FAULT 1 1. Abnormal vehicle operation causing Cycle KSI. If problem
high current spikes. persists, replace controller.
2. Current sensor out of range.
3. Controller failure.
1,2 HW FAILSAFE 1 1. Noisy environment. Cycle KSI. If problem
2. Self-test or watchdog fault. persists, replace controller.
3. Controller failure.
1,3 M- SHORTED 1 1. Internal or external short of M- to B-. Check wiring; cycle KSI.
2. Incorrect motor wiring. If problem persists,
3. Controller failure. replace controller.
1,4 SRO 3 1. Improper sequence of KSI, interlock, Follow proper sequence;
and direction inputs. adjust throttle if necessary;
2. Interlock or direction switch circuit open. adjust programmable
3. Sequencing delay too short. parameters if necessary.
4. Wrong SRO or throttle type selected.
5. Misadjusted throttle pot.
2,1 THROTTLE WIPER HI 1 1. Throttle input wire open or shorted to B+. When Throttle Wiper High
2. Defective throttle pot. input returns to valid range.
3. Wrong throttle type selected.
2,2 EMR REV WIRING 1 1. Emergency reverse wire or check wire Re-apply emergency reverse
open. or cycle interlock.
2,3 HPD 3 1. Improper sequence of KSI, interlock, Follow proper sequence;
and throttle inputs. adjust throttle if necessary;
2. Misadjusted throttle pot. adjust programmable
3. Sequencing delay too short. parameters if necessary.
3. Wrong HPD or throttle type selected.
5. Misadjusted throttle pot.
SRVC TOTAL 3 1. Total maintenance timer expired. Reset with programmer.
SRVC TRAC 3 1. Traction maintenance timer expired. Reset with programmer.
TOTAL DISABLED 3 1. Total disable timer expired. Reset with programmer.
TRAC DISABLED 3 1. Traction disable timer expired. Reset with programmer.
2,4 THROTTLE WIPER LO 1 1. Throttle pot wire open or shorted to B+. When Throttle Wiper Low
2. Wrong throttle type selected. input returns to valid range.
3. Defective throttle pot.
3,1 FIELD SHORT 1 1. Main contactor coil shorted. Check contactor coil and
2. Field winding shorted to B+ or B-. field winding; cycle KSI.
3. Field resistance too low.
3,2 MAIN CONT WELDED 1 1. Main contactor stuck closed. Check wiring and contactor;
2. Main contactor driver shorted. cycle KSI.
3,3 FIELD OPEN 1 1. Field winding connection open. Check wiring and cycle KSI.
2. Field winding open.
3,4 MISSING CONTACTOR 1 1. Main contactor coil open. Check wiring and cycle KSI.
2. Main contactor missing.
3. Wire to main contactor open.
PROPEL CONTROLLER TROUBLESHOOTING CHART
T15 Propel Controller
(page 2 of 3)
E
232 T15 331555 (05-2007)
LED PROGRAMMER FAULT
CODE LCD DISPLAY CATEGORY POSSIBLE CAUSE FAULT CLEARANCE
4,1 LOW BATTERY VOLTAGE 2 1. Battery voltage < undervoltage cutback. When voltage rises above
2. Corroded battery terminal. undervoltage cutoff point.
3. Loose battery or controller terminal.
4,2 OVERVOLTAGE 2 1. Battery voltage >overvoltage shutdown. When voltage falls below
limit. overvoltage cutoff point.
2. Vehicle operating with charger attached.
4,3 THERMAL CUTBACK 2 1. Temperature >85qC or < -25qC. Clears when heatsink
2. Excessive load on vehicle. temperature returns to
3. Improper mounting of controller. within acceptable range.
4,4 ANTI-TIEDOWN 3 1. Mode switches shorted to B+. Release Mode Select 1.
2. Mode Select 1 “tied down” to select
Mode 2 or Mode 4 permanently.
MOTOR HOT 3 1. Field resistance > motor hot setpoint. When resistance < setpoint.
MOTOR WARM 3 1. Field resistance > motor warm setpoint. When resistance < setpoint.
LED CODES EXPLANATION
LED off no power or defective controller
solid on controller or microprocessor fault
0,1 ■¤ controller operational; no faults
1,1 ¤ ¤ current sensor error
1,2 ¤ ¤¤ hardware failsafe fault
1,3 ¤ ¤¤¤ M- fault or motor output short
1,4 ¤ ¤¤¤¤ static return to off (SRO)
2,1 ¤¤ ¤ throttle wiper high
2,2 ¤¤ ¤¤ emergency reverse circuit check fault
2,3 ¤¤ ¤¤¤ high pedal disable (HPD), or expired timer
2,4 ¤¤ ¤¤¤¤ throttle wiper low
3,1 ¤¤¤ ¤ contactor driver overcurrent or field winding short
3,2 ¤¤¤ ¤¤ main contactor welded
3,3 ¤¤¤ ¤¤¤ field winding open
3,4 ¤¤¤ ¤¤¤¤ missing contactor
4,1 ¤¤¤¤ ¤ low battery voltage
4,2 ¤¤¤¤ ¤¤ overvoltage
4,3 ¤¤¤¤ ¤¤¤ thermal cutback, due to over/under temp
4,4 ¤¤¤¤ ¤¤¤¤ anti-tiedown fault, or overheated motor
PROPEL CONTROLLER TROUBLESHOOTING CHART, cont'd
PROPEL CONTROLLER STATUS LED FAULT CODES
T15 Propel Controller
(page 3 of 3)
E
T15 331555 (05-2007) 233
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
T15 Operating Lights (option)
Conditions: Key ON
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
BATTERY
NEGATIVE
SWITCHED B+
FROM M1B
LIGHT SWITCH
S8
CB3
10A
6/BLU
OVERHEAD
GUARD LIGHT
SHROUD
LIGHT
LEFT
HEADLIGHT
RIGHT
HEADLIGHT
RIGHT
TAIL LIGHT
LEFT
TAIL LIGHT
37/BLU 81/GRN 81/GRN
81/GRN
81/GRN
81/GRN
81/GRN
81/GRN
13/BLK
13/BLK
13/BLK
13/BLK
13/BLK
13/BLK
T15 Horn ON
Conditions: Key ON
BATTERY
NEGATIVE
SWITCHED B+
FROM M1B
HORN SWITCH
S7
CB5
10A
6/BLU
HORN
36/GRN 21/BLU
D5
21/BLU 13/BLK
13/BLK
E
234 T15 331555 (05-2007)
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
MACHINE CONTROL BOARD
P3-1
SWITCHED B+
FROM CB6
10/YEL 38/ORA
T15 Extended Scrub (ES) System ON (option)
Conditions: Key ON, scrubbing system ON, ES system ON, recovery tank HALF FULL or more, solution tank NOT FULL
20/GRY
ES PUMP
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
13/BLK
23/GRN
S5
RECOVERY TANK
HALF FULL SWITCH
BATTERY
NEGATIVE
ES FILTER FLUSH VALVE
SV2
P3-14
P4-2
13/BLK
14/GRY
S9
SOLUTION TANK
FULL SWITCH
P4-9
10/YEL
Conditions: Key ON
BATTERY
NEGATIVE
SWITCHED B+
FROM M1B
POWER WAND
SWITCH
S6
CB4
10A
POWER WAND PUMP
9/BRN 94/ORA 13/BLK
T15 Power Wand ON (option)
13/BLK
6/BLU
E
T15 331555 (05-2007) 235
WHEN RECOVERY TANK 1/2 FULL SWITCH
(S---5) IS CLOSED (FLOAT IN UP POSI-
TION) THE ES TOUCH PANEL LIGHT
TURNS ON
--- I S T H E E S L I G H T O N W H E N S --- 5
CLOSES ?
RUN INPUT
TEST MODE
20/GRYISSWITCHEDTOGROUNDAT
P 3 --- 1 4 --- --- M O T O R S H O U L D R U N
--- ES PUMP MOTOR OR 10H/YEL OR
20/GRY IS OPEN
--- HOLD ES BUTTON
--- T U R N K E Y O N
--- R E L E A S E B U T T O N A F T E R
5SEC
--- # 3 B A T T E R Y L E D W I L L
BLINK IN MANUAL MODE
--- T U R N O N E S S Y S T E M --- ---
IS THE PUMP RUNNING ?
RUN SELF TEST DIAGNOSTIC SOFTWARE
--HOLD SQ/VAC BUTTON
--TURN ON KEY
--RELEASE BUTTON AFTER 5 SEC
--BATTERY LED #4 WILL BLINK IN THIS MODE
--LET MACHINE RUN UNTIL ONE RED (FAIL)
OR GREEN (PASS) LIGHT COMES ON
--DO YOU GET ”ES PUMP OUTPUT” ERROR ?
--RED FAIL LIGHT ON, HOLD ES BUTTON
DOWN, DOWN PRESSURE LED #2 IS LIT
OPERATION: When ES system selected on the touch panel and input floats are in
the proper position
DRecovery tank is 1/2 full = S---5 is closed
DSolution tank NOT full = S---9 is opened
DP3---14 is switched to ground, turning on the ES pump
NOTE: Once ES pump is turned on, it will keep running until S---5 opens,
plus 30 seconds or until S---9 closes = solution tank full
STILL HAVE
ERROR
NO ERROR
DISCONNECT ES PUMP
AND RE--TEST
NO ERROR
REPLACE THE BOARD
RUN MANUAL MODE
TEST
NO
YES
--- HOLD SCRUB BUTTON
--- T U R N O N K E Y
--- RELEASE SCRUB BUTTON AFTER
5SEC
---#2 DOWN PRESS LIGHT WILL
BLINK IN INPUT MODE
--- VERIFY FLOAT OPERATION
NO
YES
SEE NEXT PAGE....
ERROR ”ES OUTPUT”
:MACHINE POWERS UP, TOUCH PANEL
AND PROPEL SYSTEMS TEST GOOD
VERIFY THAT 20/GRY IS NOT
SHORTED TO GROUND,
THEN REPLACE THE ES
PUMP
T15 ES System Troubleshooting
E
236 T15 331555 (05-2007)
S--- 5 IS SHORTED WITH
THE FLOAT DOWN OR
23/GRN IS SHORTED
TO GROUND
CONTINUED FROM PREVIOUS PAGE
NO
YES
23/GRN, 13R/BLK,
O R S --- 5 F L O A T
SWITCH IS OPEN
NO
YES
SYSTEM TESTS GOOD
DOES ES LIGHT TURN
O F F W H E N S --- 5 I S
OPEN ? (FLOAT DOWN)
YES
NO
WHEN SOLUTION TANK FULL SWITCH (S--- 9)
IS CLOSED (FLOAT IN UP POSITION) THE
OVERFLOW LIGHT TURNS ON--- ---IS THE
OVERFLOW LIGHT ON WHEN S---9 CLOSES ?
YES
DOES THE OVERFLOW
LIGHT TURN OFF
W H E N S --- 9 I S O P E N ?
(FLOAT DOWN)
NO
S --- 9 F L O A T S W I T C H , 1 4 / G R Y,
OR 13Q/BLK IS OPEN
S--- 9 IS SHORTED WITH
THE FLOAT DOWN OR
14/GRY IS SHORTED
TO GROUND
T15 ES System Troubleshooting (cont'd)
E
T15 331555 (05-2007) 237
SYSTEM IS TESTING GOOD
---REVIEW OPERATION
D E S C R I P T I O N --- --- I S S Y S T E M
PROPERLY ENABLED ?
38/ORA IS SWITCHED
TO GROUND AT
P 3 --- 1 --- --- V A L V E S H O U L D
TURN ON
--- VALVE, 10J/YEL, OR
38/ORA IS OPEN
RUN MANUAL MODE
TEST
--- HOLD ES BUTTON
--- T U R N K E Y O N
--- R E L E A S E B U T T O N A F T E R
5SEC
--- # 3 B A T T E R Y L E D W I L L
BLINK IN MANUAL MODE
--- T U R N O N E S S Y S T E M --- ---
D O E S S V --- T U R N O N ?
RUN SELF TEST DIAGNOSTIC SOFTWARE
--HOLD SQ/VAC BUTTON
--TURN ON KEY
--RELEASE BUTTON AFTER 5 SEC
--BATTERY LED #4 WILL BLINK IN THIS MODE
--LET MACHINE RUN UNTIL ONE RED (FAIL)
OR GREEN (PASS) LIGHT COMES ON
--DO YOU GET ”AIR FLUSH VALVE” ERROR ?
--RED OVERFLOW LIGHT ON = FAIL SELF
TEST
--PRESS ES BUTTON----ES LED TURN ON
OPERATION: To enable the EStflush system----the vacuum fan and EStsystem
must be turned on
DP3--1 will switch to ground for 5 seconds every
45 seconds----turning on SV--2
DEvery time SV--2 is turned on an air burst clears
debris from the EStpump filter
STILL HAVE
ERROR
NO ERROR
DISCONNECT ES
FLUSH SOLENOID
AND RE--TEST
NO
ERROR
REPLACE BOARD
NO ERROR
REPLACE SV--2
YES
:MACHINE POWERS UP, TOUCH PANEL
AND PROPEL SYSTEMS TEST GOOD
2
T15 ES Filter Flush Troubleshooting
E
238 T15 331555 (05-2007)
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
MACHINE CONTROL
BOARD
SWITCHED B+
FROM CB6
T15 Pre-Sweep System ON (option)
Conditions: Key ON, sweeping system ON, propel forward
93/ORA
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
P3-6
P4-8
10/YEL
S10
5
910
6
9/BRN
50/TAN
95/GRN
48/GRY
D12
TO PROPEL
CONTROLLER PIN P14
M5A
93/ORA
96/BLU
42/BRN
iProvides Battery negative
input during sweeping to
limit maximum propel speed
SWITCHED B+
FROM M1B
1
2
4
CB4
10A
CB10
25A
6/BLU
6/BLU6/BLU
M5B
8
CB12
10A
MAIN SWEEP
BRUSH MOTOR
RIGHT SWEEP
BRUSH MOTOR
LEFT SWEEP
BRUSH MOTOR
D10
BATTERY
NEGATIVE
EXTEND LIMIT
SWITCH
RETRACT LIMIT
SWITCH
SWEEP HEAD ACTUATOR
PRE-SWEEP
SWITCH
13/BLK
13/BLK
13/BLK
13/BLK
13/BLK
13/BLK
13/BLK
13/BLK
50/TAN
50/TAN
9/BRN
9/BRN
9/BRN
96/BLU
96/BLU
95/GRN
95/GRN
i
This diagram shows the Sweep Head Actuator being extended and how it
receives Battery negative before the Retract Limit Switch closes
The Retract Limit Switch will close shortly after the actuator begins to extend
The Extend Limit Switch will open when the actuator reaches the end of travel
97/PUR E
T15 331555 (05-2007) 239
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
MACHINE CONTROL BOARD
SWITCHED B+
FROM CB6
T15 Pre-Sweep Dust Control ON (option)
Conditions: Key ON, sweeping system ON, propel forward
49/WHT
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
DUST CONTROL
SHUT-OFF VALVE
DUST CONTROL
PUMP
P4-4 P4-12
10/YEL
Conditions: Key ON
BATTERY
NEGATIVE
RIGHT SWEEP
BRUSH SWITCH
S12
RIGHT SWEEP
BRUSH MOTOR
98/GRY 13/BLK
T15 Right Sweep Brush ON (option – Cylindrical Scrub Head ONLY, NO Pre-Sweep)
49/WHT10/YEL
DUST CONTROL SWITCH
S11
SWITCHED B+
FROM M5B
4
910
X
2
BATTERY
NEGATIVE
1
96/BLU
13/BLK
43/ORA
43/ORA
43/ORA
43/ORA
SWITCHED B+
FROM CB6
10/YEL
D13
98/GRY 13/BLK
E
240 T15 331555 (05-2007)
Wiring Color Codes
RED
BLK
GRY
BLU
PUR
ORA
YEL
GRN
BRN
PNK
Red
Black
Gray
Blue
Purple
Orange
Yellow
Green
Brown
Pink
Abbreviation Color of Wire
WHT White
CLR Clear
=Battery Negative
or Logic Ground
=Battery Positive
or Positive Output
UNSWITCHED B+
FROM FU1
T15 FaST System ON
Conditions: Key ON, scrubbing system ON, operator on seat, propel forward, recovery tank NOT FULL
!Be cautious when working near Control Board -
Battery voltage is always present, even with Key OFF
MACHINE CONTROL
BOARD
SWITCHED B+
FROM CB6
FaST RELAY
BATTERY
NEGATIVE
P3-14
13/BLK
24/GRY
S4
RECOVERY TANK
FULL SWITCH
P4-3
10/YEL
A
B
FaST
RELAY
CB11
10A WATER
PRESSURE
SWITCH
2
3 1
DETERGENT
PUMP
TIMER
MODULE
13/BLK
DETERGENT PUMP
FaST SOLENOID VALVE
AIR PUMP
WATER PUMP
5/BRN
52/BRN
52/BRN
52/BRN
52/BRN
52/BRN
52/BRN
52/BRN
54/YEL
54/YEL
54/YEL
54/YEL
54/YEL
54/YEL
54/YEL
58/GRY
53/ORA
53/ORA
D1
D2
i
The Detergent Pump is pulsed once
every approximately 1.5 seconds
The Water Pump Pressure switch will
turn OFF the Detergent Pump when
the water pressure is below 10 PSI
55/GRN 20/GRY
56/BLU
E
T15 331555 (05-2007) 241
Battery Charger Troubleshooting Guide (Single LED Model)
Delta-Q’s QuiQ charger is designed for a long, trouble-free service life. Occasionally, the user may
encounter abnormal operation which can usually be corrected by following the procedures in this guide.
Indications on the Charger Single-LED Display (internal or external)
LED indications following “Power-On Self Test”:
Green Solid: Charging complete. Charger in
Maintenance Mode.
Flashing: Short: <80% Charge.
Long: >80% Charge.
When battery is not connected
(flashes with 1.5 to 2 second pauses):
Algorithm Number display.
Amber Flashing: Reduced Power Mode: Low AC
Voltage or High internal charger
temperature.
• Provide better airflow to the
charger.
• Try to move the charger to a
cooler location.
• Confirm that dirt or mud is not
blocking the cooling fins of the
charger. Clean the charger.
Rinse charger with low pressure
hose if required. Do not use high
pressure. Do not use a pressure
washer.
Red Flashing: Charger error. Check code and refer
to troubleshooting guide below.
T15 Battery Charger Troubleshooting
(Page 1 of 5)
E
242 T15 331555 (05-2007)
Fault Indications:
Fault LED
Flashes (Red) Explanation and Solution
High Battery Voltage Detected
• Check that the battery charger voltage is consistent with the battery pack
voltage. The first two digits of the four digit model name indicate the
battery voltage the charger supports.
• Check for wiring errors.
• High battery voltage could also occur if there is another source charging
the battery. Disconnect any other sources during charging.
• If this problem does not clear after the battery voltage is confirmed to be
less than 2.4V per cell, return the charger for service.
• This fault will automatically clear and the charger will restart charging
when this problem is removed.
Low Battery Voltage Detected
• Check the battery and connections to the battery.
• Check the nominal battery voltage. The first two digits of the four digit
model name indicate the battery voltage the charger supports. Confirm
that a nominal battery voltage is the same as the charger voltage.
• If this problem does not clear after the battery voltage is confirmed to be
higher than 1V per cell and all connections are good, return the charger
for service.
• This fault will clear automatically when the low battery voltage problem is
rectified.
Charge Timeout - Indicates the battery failed to charge within the allowed time. This
could occur if the battery is of larger capacity than the algorithm is intended for. In
unusual cases it could mean charger output is reduced due to high ambient
temperature. It can also occur if the battery is damaged, old, or in poor condition.
• Check the battery for damage such as shorted cells and insufficient
water. Try the charger on a good battery.
• If the same fault occurs on a good battery, check the connections on the
battery and connection to AC power, and AC voltage.
• Confirm that the nominal battery pack voltage is the same as the battery
charger voltage.
• If a charger displays this fault on a battery pack, and the pack is of
questionable status, reset the charger by disconnecting AC power for 30
seconds, and then reconnect the AC to start a new charge cycle. After a
few charge cycles this problem could stop occurring as the pack
“recovers.”
• This fault must be cleared manually by unplugging the AC, waiting 30
seconds and reconnecting the ac power.
Check Battery - This fault indicates the battery pack could not be trickle charged up to
the minimum level required for the normal charge cycle to be started.
• Check that none of the battery pack connections between modules are
reversed or incorrectly connected.
• Check that one or more cells in the battery are not shorted.
• Confirm that the nominal battery pack voltage is the same as the battery
charger voltage.
T15 Battery Charger Troubleshooting
(Page 2 of 5)
E
T15 331555 (05-2007) 243
• Try the charger on a good battery.
• If this fault occurs the battery pack is likely in poor condition. Try to
recover the pack with a charger that can charge the individual cells –
such as an automotive charger. Be sure to set this charger to the
appropriate voltage – 6V per 6V battery, 12V per 12V string/battery.
Over-Temperature: This fault indicates the charger has become too hot during
operation. This extra fault indication (as opposed to the flashing LED described
above), indicates an even higher temperature was reached inside the charger.
Though not damaging to the charger, charge time will be extended significantly
• This fault indication will not clear automatically, but the charger will
restart charging automatically when the temperature drops. The fault
indication must be cleared manually by unplugging the AC power,
waiting 30 seconds and reconnecting the AC.
• If possible, install the charger in a cooler location or increase cooling air
flow to the cooling fins.
• Confirm that dirt or mud is not blocking the cooling fins of the charger. If
required, clean the charger by rinsing it with a low pressure hose. Do
not use high pressure. Do not use a pressure washer.
QuiQ Internal Fault: This fault indicates that the batteries will not accept charge
current, or an internal fault has been detected in the charger. This fault will nearly
always be set within the first 30 seconds of operation. If it occurs after the charger
has started charging normally, be sure to make a note of it.
• Try to clear the fault by unplugging AC power, waiting 30 seconds and
reconnecting the AC.
• Check all battery connections. Look for a high resistance connection.
The most likely reason for this fault is a fault in the battery such as a bad
battery connection, an open cell, or insufficient water.
• This fault will occur if an internal fuse inside the charger blows. If the
green wire is shorted to ground even momentarily this fuse will blow. To
check the fuse, measure with an ohmmeter between the green and red
wires with the AC disconnected. If a short circuit is not measured, the
fuse has blown. Return unit to a service depot to have this fuse
replaced.
• For software revision 0.81 or older, this fault may indicate that the input
or output voltage went out of range. Check input and output connections
before returning the unit to a service depot. Charger may need to be
brought to a service depot to have its software upgraded. Refer to the
lower right hand corner on the back of the Product Manual to determine
the software revision.
• If this fault occurs after battery charging has started, confirm that AC
power was not interrupted and that all battery connections are good.
• If all battery connections are good, an internal fault has been detected
and the charger must be brought to a qualified service depot.
Other Indications:
Indication Explanation and Solution
AC On LED Lit,
Charger won’t
start charging.
Charger has detected a condition that does not allow it to charge
T15 Battery Charger Troubleshooting
(Page 3 of 5)
E
244 T15 331555 (05-2007)
• Confirm battery connections are good.
• The nominal voltage for a lead acid battery is 2 V per cell. For example,
a 48V battery will have 48/2 = 24 cells.
• If the battery voltage is greater than 2.5V per cell, the charger will not
start charging.
• If the battery voltage is less than 0.5V per cell, the charger will not start.
• For software revisions 0.81 or lower, the charger will not start charging if
the battery voltage is less than 1V per cell. Refer to the lower right hand
corner of the back of the Product Manual to determine the software
revision.
• Check for any fault codes that might be set and refer to the descriptions
above.
• A fully charged battery will draw very little current, but will not show
100% charged immediately. The charger will change to Absorption
mode in under 5 minutes once the conditions for the end of bulk charge
have been met. The 80% LED will illuminate at this time. During the
final phase of charging, the battery will only accept a very small current –
the charger is unable to accelerate this portion of the charge cycle
without damaging the battery.
Excessive
Battery Watering
or Strong
Sulphur (Rotten
Egg) Smell
Overcharging or high battery temperature. These symptoms are unlikely to be caused
by too high a charge current since the maximum charge current of the charger will be
small compared to even a moderately sized battery pack. The most likely cause for
this problem is incorrect charge algorithm setting and/or high ambient temperatures.
• Confirm that the battery pack is not too small – usually > 50Ah.
• Confirm that the nominal battery voltage matches the charger output
voltage.
• Confirm the correct battery charge algorithm. If the battery pack is new,
the algorithm will need to be changed if the pack is not the same as the
old one. Refer to the Product Manual for instructions on how to
determine and change the battery charge algorithm.
• If the output voltage of the charger seems excessive, return the charger
for service. Contact Delta-Q to get the expected battery voltage settings
for the charger in question. Be sure to have the charger’s serial number
and charge algorithm setting available when calling.
Difficulty
Changing the
Default Battery
Charge
Algorithm
The mode to change the battery charge algorithm can only be selected during the first
10 seconds of operation. Refer to the Product Manual for instructions.
If the 10 second window is missed, cycle AC power by unplugging the charger,
waiting 30 seconds, and reconnecting AC power.
To extend Battery Charge Algorithm Change Mode by 30 seconds (120 seconds on
newer models), connect the charger output to a good battery for approximately 1
second and then disconnect the battery again.
General Troubleshooting
Should the condition of a charger be in doubt, the flow chart on the next page should be followed to check
the charger’s operating condition.
T15 Battery Charger Troubleshooting
(Page 4 of 5)
E
T15 331555 (05-2007) 245
Delta-Q Technologies
QuiQ Charger Troubleshooting Flow Chart
Does the
Charger Turn
On?
Disconnect charger from batteries
and connect to AC Power
Yes
No
Ensure 90-
260VAC at
Charger Input
Does the
Charger Turn
On?
Yes
No
Check for correct algorithm
number (refer to manual for
procedure)
Charger Input Failure -
Return Unit
Does the
algorithm
match the
batteries?
Change algorithm to correct
setting for batteries.
No
Connect charger to batteries
and plug charger into AC.
Yes
Does the
Red LED indicate
a fault?
Is the
interlock
functioning? (if
used)
Note that the interlock is not
functioning and return
charger
Charger is OK
Yes
Yes No
Refer to troubleshooting guide to try and resolve
problem. If problem persists make note of the
problem and return charger
No
Is there
excessive boiling or
other odd behaviour
while charging?
No
Yes
T15 Battery Charger Troubleshooting
(Page 5 of 5)
E
246 T15 331555 (05-2007)
T15 Machine Control Board Connectors
pin # wire # color
input or
output active voltage
inactive
voltage
1 38 orange output B- B+ SV2 ES filter flush solenoid
2 10 yellow input B+ open x 36 VDC power
3 13 black input B- x x Power ground
4 18 brown output B+ or B- open ACT2 Scrub head actuator
5 19 green output B+ or B- open ACT2 Scrub head actuator
6 93 orange output B- B+ M5A Sweeper system relay
7 10 yellow input B+ open x 36 VDC power
8 13 black input B- x x Power ground
9 41 blue output B- B+ x Hour meter
10 16 yellow output B+ or B- open ACT1 Squeegee actuator
11 12 green output B- B+ M3A Main brush motors relay
12 11 brown output B- B+ M2A Vacuum fan(s) relay
13 15 purple output B- B+ SV1 Conventional solenoid valve
14 20 gray output B- B+ x ES pump or FaST system
15 17 gray output B+ or B- open ACT1 Squeegee actuator
function/component controlled
pin # wire # color
input or
output active voltage
inactive
voltage
1 10 yellow input B+ open x 36 VDC power
2 23 green input B- open S5 Recovery tank half full switch
3 24 gray input B- open S4 Recovery tank full switch
4 49 white output B- B+ SV1 Sweeper dust control system
5 13 black input B- x x Control ground
6 28 brown input B+ open x Forward propel signal
7 29 gray input B+ open x Reverse propel signal
8 50 tan input B- B+ S10 Sweeper switch
9 14 gray input B- open S9 Solution tank full switch
10 22 brown input B- open x Brush motor fault signal
11 25 gray input B+ x x Battery sense
12 43 orange input B- open S11 Dust control switch
function/component controlled
pin # wire # color
input or
output function/component controlled
1 13 black input Cable shield (noise suppression)
2 87 clear input Brush motors shunt LOW
3 88 black input Brush motors shunt HIGH
P3
P4
P5
iViewed from
the wire side
of harness
connector
iViewed from
the wire side
of harness
connector
iViewed from
the wire side
of harness
connector
15 PIN CONNECTOR (P3)
12 PIN CONNECTOR (P4)
3 PIN CONNECTOR (P5)
E
T15 331555 (05-2007) 247
T15 Propel Controller Connectors
pin # wire # color
input or
output active voltage
inactive
voltage function/component controlled
1empty x x x x
2empty x x x x
3empty x x x x
4empty x x x x
5empty x x x x
6 31 yellow input 0 to 5 VDC open Throttle position signal
7empty x x x x
8 66 blue output B- B+ Electric solenoid brake
9 27 green input B+ B- Mode select
10 empty x x x x
11 29 gray input B+ B- Reverse propel signal
12 28 brown input B+ open Forward propel signal
13 empty x x x x
14 42 brown input B- open Low speed enable signal
15 98 gray input B+ open Brake & seat switch interlock
16 27 green input B+ B- Key switch signal
iViewed from
the wire side
of harness
connector
16 PIN CONNECTOR
4 PIN CONNECTOR
i4 Pin Connector
not used (for
programming only)
16 PIN CONNECTOR
CURTIS 1243
PROPEL CONTROLLER
pin #
input or
output
active
voltage
inactive
voltage function/component controlled
B+ input B+ open 36 VDC power
B- input B- x Power ground
M- output B- open Propel motor armature power
S1 output B- to B+ open Propel motor field power
S2 output B- to B+ open Propel motor field powe
r
E
248 T15 331555 (05-2007)
Configuration modes are designed for use by a technician for setup purposes.
T15 Operating & Configuration Modes
(Page 1 of 12)
Toggles the machine between normal and a
restricted down pressure setting. The normal
mode allows all four down pressure LED settings.
The restricted mode allows only three LED
settings. Each time the Restricted Down Pressure
Mode is entered, the machine will toggle between
normal and restricted down pressure modes.
1) Press and hold both the “Squeegee/
Vacuum Fan” and “Scrub” buttons.
2) Turn key switch to the start position,
then release key.
3) Hold “Squeegee/Vacuum Fan” and
“Scrub” buttons until three OR four
brush pressure LED’s start flashing.
4) Release the “Squeegee/Vacuum
Fan” and “Scrub” buttons and turn key
switch OFF. The mode has now been
toggled.
RESTRICTED
DOWN
PRESSURE
MODE
Allows the technician to observe the effectiveness
of various inputs and sensors on the machine
controller board. When in this mode, the
technician can scrub with the machine as normal
and observe the operation of the various inputs.
1) Press and hold the “Scrub” button.
2) Turn key switch to the start position,
then release key.
3) Hold “Scrub” button for 5 seconds.
4) Release the “Scrub” button. Battery
LED # 2 will flash.
INPUT
DISPLAY
MODE
Allows the technician to exercise individual
functions on the machine. This mode disregards
the effects of various interlocks. DO NOT scrub
with the machine in this mode.
1) Press and hold the “ES” or “FaST”
button.
2) Turn key switch to the start position,
then release key.
3) Hold “ES” or “FaST” button for 5
seconds.
4) Release the “ES” or “FaST” button.
Battery LED # 3 will flash.
MANUAL
MODE
Default mode for general operation of machine.1) Turn key switch to the start position,
then release key.
NORMAL
MODE
Displays the machine’s software revision date.
Each sequence of flashes is separated by a
pause, then repeated over and over until the key
switch is turned OFF.
The MONTH is displayed by the number of
flashes of the “ES” or “FaST” LED.
The DAY is displayed by the number of flashes of
the “Squeegee/Vacuum Fan” LED.
The YEAR is displayed by the number of flashes
of the “Recovery Tank Full” LED.
1) Press and hold both the “Squeegee/
Vacuum Fan” and “ES/FaST” buttons.
2) Turn key switch to the start position,
then release key.
3) Hold “Squeegee/Vacuum Fan” and
“ES/FaST” buttons until the ES/FaST
LED begins to flash.
4) Release the “Squeegee/ Vacuum
Fan” and “ES/FaST” buttons. The
software revision date will be flashed on
the touch panel.
5) The flashing sequence will continue
until the key switch is turned OFF.
SOFTWARE
REVISION
DATE
DISPLAY
MODE
Tests the operation of the Machine Control Board
and exercises all of its outputs. When this mode
is engaged, various motors and accessories will
be engaged at full power as part of the test.
Extreme care must be taken to be sure that
technicians and bystanders are not injured as a
result of this test.
1) Press and hold the
“Squeegee/Vacuum Fan” button.
2) Turn key switch to the start position,
then release key.
3) Hold “Squeegee/Vacuum Fan”
button for 5 seconds.
4) Release the “Squeegee/Vacuum
Fan” button. Battery LED # 4 will flash.
SELF
TEST
MODE
Function / NotesEntry Sequence / IndicatorMode
E
T15 331555 (05-2007) 249
T15 Operating & Configuration Modes
(Page 2 of 12)
Default mode for general operation of machine.1) Turn key switch to the start position,
then release key.
NORMAL
MODE
Function / NotesEntry Sequence / IndicatorMode
NORMAL MODE
The purpose of the normal mode is for the general operation of the machine. The machine will normally start in this
mode. What follows is a brief description of each of the operations in the normal mode.
SCRUB BUTTON
The purpose of the scrub button is to turn the scrubbing operations on and off and adjust the scrubbing down
pressure. Pressing the scrub button while the scrubbing operation is currently inactive will initiate the following
actions:
1. Illuminate the LED’s that indicate the default down pressure. Note: Hold the scrub button down to get
another down pressure setting. See item 4 below.
2. If the machine is not in reverse, the vacuum fan will turn on, the squeegee will drop, and the brushes will
drop. Putting the machine into reverse will raise the squeegee and, after a slight delay, turn off the vacuum fan.
3. If the machine is in forward, the brush head will drop, water valve will turn on, and the brushes will start turning.
Putting the machine into neutral while scrubbing will turn off the brushes and, after a short delay, slightly raise
the scrub head.
4. If the operator holds the scrub button after the LED’s become illuminated, the machine will begin to scroll
through the different scrub down pressures. The controller stores the pressure displayed as the new default
after the user releases the scrub button.
Pressing and releasing the scrub button while the machine is currently in the scrub mode will initiate the following
actions:
1. The scrub motors will turn off and the scrub head will start to raise.
2. The machine will delay a few seconds and the squeegee will start to raise.
3. The vacuum fan will turn off after a slight delay.
SQUEEGEE/VACUUM FAN BUTTON
Pressing the squeegee button will start or stop the water pickup operation. If the operator presses the Squeegee/
Vacuum Fan button while the squeegee LED is currently not illuminated will cause the following actions:
1. The squeegee LED will be illuminated.
2. If the machine is not in reverse, the squeegee will drop and the vacuum fan will turn ON. If the machine goes
into reverse while the squeegee/vacuum fan is active, the squeegee will rise. If the machine remains in reverse
long enough, the vacuum fan will shut OFF. Pressing the squeegee button while the Squeegee/Vacuum Fan
LED is on will cause the Squeegee/Vacuum Fan LED to turn OFF, raise the squeegee, and turn off the vacuum
fan after a slight delay.
ES BUTTON
Pressing the ES button will enable or disable the ES system. The ES system will draw water from the recovery tank,
through a filter and pump it into the solution tank. If the operator has turned on the ES system, and the recovery tank
is at least half full (switch S5 is closed), and the solution tank is not full (switch S9 is open), the ES pump will begin to
run. The ES pump will continue to run for about 30 seconds after the recovery tank is less than half full (switch S5 is
open).
HOUR METER
The Hour Meter will record hours if the machine:
1. Is PROPELLING forward or reverse.
2. The VACUUM FAN(S) are running.
E
250 T15 331555 (05-2007)
T15 Operating & Configuration Modes
(Page 3 of 12)
NORMAL MODE (continued)
BATTERY GAUGE
The battery gauge displays the state of charge of the batteries with a 4 segment LED display. When the last
segment is blinking, the battery voltage is about 31.5 volts (80% discharge), and the batteries need charging.
The scrub and squeegee/vacuum fan functions will shut off if the operator is scrubbing at this point. If the user
selects the squeegee button, the squeegee will lower, and the vacuum fan will run for about 30 seconds to allow
the operator to pick up any excess water. The squeegee will then lift, and the vacuum fan will shut off after a
slight delay.
INTERLOCKS
The machine has several interlocks which can inhibit or cancel machine functions.
REVERSE - When the operator propels in reverse with the squeegee/vacuum fan system ON the
SQUEEGEE will lift and the VACUUM FAN will turn off after a time delay (the vacuum fan function will
resume when in neutral or forward propel).
NEUTRAL - When the operator stops propelling (machine in neutral) with the scrub system active, the scrub
system will remain ON for 5 seconds. After the 5 second delay, the CONVENTIONAL WATER VALVE or
FaST system and SCRUB BRUSHES will turn OFF, and the SCRUB HEAD will raise slightly.
LOW BATTERY - When the last battery LED is blinking (about 31.5 volts), the machine will cancel the
SCRUB FUNCTIONS (the scrub functions will cancel as if the scrub button was toggled). The operator
cannot restart the scrub functions until the meter is reset. The battery gauge can be reset by unplugging
the main battery connector. Also, the SQUEEGEE/VACUUM FAN FUNCTIONS will be cancelled,
as if the Squeegee/Vacuum Fan button was toggled. After this occurs, the operator can press the
Squeegee/Vacuum Fan button, and the squeegee will drop and the vacuum fan will run for about 30
seconds to pick up any excess water.
The battery meter is reset each time the main battery connector is removed. Each time the machine
is turned OFF, it will store the current state of battery charge. When the machine is again turned ON, it will
recall the last state of charge, and display it on the touch panel. If the main battery connector is
disconnected, the controller will assume the machine has been charged. The battery meter will be reset the
next time the key is turned ON.
RECOVERY TANK FULL FLOAT SWITCH - If the recovery tank becomes full (S4 closes), the SCRUB and
SQUEEGEE/VACUUM FAN FUNCTIONS will turn OFF. If the Recovery Tank Full float switch (S4) is
closed for more than 3 seconds, the Recovery Tank Full LED will turn ON and stay ON. If the scrub and/or
squeegee/vacuum fan functions are ON, they will turn OFF (the vacuum fan will turn off after a slight
delay). After this occurs, the operator can press the Squeegee/Vacuum Fan button, and the squeegee will
drop and the vacuum fan will run for about 30 seconds to pick up any excess water. The Recovery Tank
Full LED will not turn off by simply emptying the recovery tank. The Recovery Tank Full LED will remain
illuminated until at least one of the following action occur:
1. The Recovery Tank float switch (S4) opens and the Scrub button is pushed.
2. The Recovery Tank float switch (S4) opens and the Squeegee/Vacuum Fan button is pushed.
3. The Recovery Tank float switch (S4) opens and the key switch is cycled OFF, then restarted.
BRUSH MOTOR ERROR - If a scrub brush circuit breaker (CB8 or CB9) opens while scrubbing, the machine
will cancel the SCRUB FUNCTIONS as if the Scrub button was toggled. Also, the SQUEEGEE/VACUUM
FAN FUNCTIONS will be cancelled as if the Squeegee/Vacuum Fan button was toggled. If the operator
presses the Squeegee/Vacuum Fan button, squeegee and vacuum fan functions will resume. ALL FOUR
BRUSH PRESSURE LED’S will begin to blink, alerting the operator to the open breaker condition.
E
T15 331555 (05-2007) 251
T15 Operating & Configuration Modes
(Page 4 of 12)
SELF TEST MODE
The purpose of the Self Test Mode is to test the operation of the Machine Control Board and to exercise all of its
outputs. When this mode is engaged, various motors and accessories will be engaged at full power as
part of the test. Extreme care must be taken to be sure that technicians and bystanders are not injured
as a result of this test.
Tests the operation of the Machine Control Board
and exercises all of its outputs. When this mode
is engaged, various motors and accessories will
be engaged at full power as part of the test.
Extreme care must be taken to be sure that
technicians and bystanders are not injured as a
result of this test.
1) Press and hold the
“Squeegee/Vacuum Fan” button.
2) Turn key switch to the start position,
then release key.
3) Hold “Squeegee/Vacuum Fan”
button for 5 seconds.
4) Release the “Squeegee/Vacuum
Fan” button. Battery LED # 4 will flash.
SELF
TEST
MODE
Function / NotesEntry Sequence / IndicatorMode
TO PREVENT INJURY, ALWAYS TURN THE MACHINE OFF AFTER
THE DIAGNOSTIC MESSAGES HAVE BEEN DISPLAYED.
IF THE DIAGNOSTIC MESSAGES DO NOT APPEAR, DO NOT ATTEMPT TO SERVICE THIS
MACHINE WITHOUT FIRST TURNING IT OFF AND RETURNING TO ANOTHER MODE.
!
!
The Self Test Mode tests each of the following controller board functions:
1. Squeegee actuator.
2. Scrub head actuator.
3. Scrub brush motor current.
4. Hour meter output.
5. Conventional water valve output.
6. ES pump or FaST relay output.
7. Vacuum fan contactor output.
8. Scrub brush contactor output.
9. ES Air flush output.
When the operator releases the squeegee button, the Machine Control Board will run the squeegee and the
brush head actuators to the up positions. It will then run the following procedure:
1. Turn on the vacuum fan and lower the squeegee.
2. Wait for the actuator to stall, flag error for always stalled, early stall, or never stalled.
3. Raise squeegee.
4. Drop scrub head about 2 inches.
5. Raise scrub head.
6. Wait for the actuator to stall, flag error for always stalled, early stall, or never stalled
7. Check brush motor current with brush motors off. Flag error for current sensed.
8. Turn on the brush motors.
9. Flag error for zero current, low current, or high current.
10. Turn off the brush motors.
11. Cycle and test the ES pump or FaST relay output.
12. Cycle and test the ES air flush output.
13. Cycle and test the vacuum fan output.
14. Cycle and test the scrub brush motor output.
15. Cycle and test the hour meter output.
16. Cycle and test the conventional water valve output.
17. Blink the squeegee light (green) for system passed, blink the overflow light (red) for system failed.
E
252 T15 331555 (05-2007)
T15 Operating & Configuration Modes
(Page 5 of 12)
SELF TEST ERROR CODES -To interrogate the machine to determine the nature of a diagnostic failure, the
technician must use the buttons on the instrument panel. A group of error codes are associated to each button
on the instrument panel. If the technician presses the button assigned to a group that has sensed an error, the
controller will display the error code using the brush pressure LED’s. If the technician presses a button assigned
to a group that has not sensed an error, the controller will display no error code on the brush pressure LED’s.
The error code assignments are as follows:
SELF TEST MODE (continued)
SQUEEGEE BUTTON PRESSED (ACTUATOR GROUP)
SCRUB BUTTON PRESSED (BRUSH MOTOR GROUP)
ES/FaST BUTTON PRESSED (ACCESSORY OUTPUT GROUP)
BRUSH PRESSURE
LED 1
BRUSH PRESSURE
LED 2
BRUSH PRESSURE
LED 3
BRUSH PRESSURE
LED 4 ERROR
ON - - - No squeegee actuator zero current
- ON - - Early squeegee stall
ON ON - - No squeegee stall
- - ON - No brush actuator zero current
- - - ON Early brush stall
- - ON ON No brush stall
BRUSH PRESSURE
LED 1
BRUSH PRESSURE
LED 2
BRUSH PRESSURE
LED 3
BRUSH PRESSURE
LED 4 ERROR
ON - - - No brush motor zero current
ON ON - - Zero brush motor current
ON ON ON - Low brush motor current
ON ON ON ON High brush motor current
ES/FaST LED SQUEEGEE
LED
BRUSH
PRESSURE
LED 1
BRUSH
PRESSURE
LED 2
BRUSH
PRESSURE
LED 3
BRUSH
PRESSURE
LED 4
ERROR
ON-----Air Flush valve output
- ON - - - - Hour meter output
- - ON - - - Water valve output
- - - ON - - ES pump output
----ON-Fan contactor output
-----ONBrush contactor output
E
T15 331555 (05-2007) 253
IF ERROR READS = ”BRUSH CONTACTOR OUTPUT”
(ES BUTTON HELD, DOWN PRESSURE LED #4 IS LIT)
--- DISCONNECT 12A/GRN AT M3 AND RERUN SELF TEST
--- NO ERROR NOW = REPLACE M3
--- SAME ERROR STILL: DISCONNECT CONTROL BOARD, VERIFY
12A/GRN IS NOT SHORTED TO GROUND--- ---THEN REPLACE THE
CONTROL BOARD
IF ERROR READS = ”NO BRUSH ACTUATOR ZERO
CURRENT”
(SQUEEGEE BUTTON HELD, DOWN PRESSURE LED #3 IS LIT)
--- REPLACE THE CONTROL BOARD
IF ERROR READS = ”EARLY BRUSH STALL”
(SQUEEGEE BUTTON HELD, DOWN PRESSURE LED #4 IS LIT)
--- DISCONNECT BRUSH HEAD ACTUATOR AND RE---RUN SELF TEST
--- SAVE ERROR: 18/BRN AND 19/GRN ARE SHORTED OR CONTROL
BOARD IS BAD
--- NOW GET ”NO BRUSH STALL” ERROR: REPLACE BRUSH HEAD
ACTUATOR
IF ERROR READS = ”NO BRUSH STALL”
(SQUEEGEE BUTTON HELD, DOWN PRESSURE
LED #3 AND #4 ARE LIT)
--- 18/BRN, 19/GRN, OR THE BRUSH HEAD ACTUATOR ARE OPEN
IF ERROR READS = ”NO BRUSH MOTOR ZERO
CURRENT”
(SCRUB BUTTON HELD, DOWN PRESSURE LED #1 IS LIT)
--- IF THE BRUSHES ARE ALWAYS ON WHEN THE KEY SWITCH IS ON:
REPLACE M3 CONTACTOR
--- IF THE BRUSHES TURN ON AND OFF DURING SELF TEST: THE
CIRCUIT BOARD SHOULD BE REPLACED
IF ERROR READS = ”ZERO BRUSH MOTOR
CURRENT”
(SQUEEGEE BUTTON HELD, DOWN PRESSURE LED #2 IS LIT
AND BRUSHES TURNED ON DURING SELF TEST)
--- THE SHUNT SIGNAL IS NOT GETTING TO THE CONTROL BOARD
--- CHECK WIRES 88/BLK, 87/CLR, AND THE SHUNT HARNESS
CONNECTIONS
--- VERIFY THAT THE SHUNT IS HOOKED UP AS PER SCHEMATIC
--- REPLACE THE SHUNT AS NECESSARY
T15 Operating & Configuration Modes
(Page 6 of 12)
SELF TEST MODE TROUBLESHOOTING
E
254 T15 331555 (05-2007)
IF ERROR READS = ”LOW BRUSH CURRENT”
(SCRUB BUTTON HELD, DOWN PRESSURE LED #3 IS LIT)
--- G O I N T O M A N U A L M O D E , T U R N O N S C R U B B R U S H E S --- --- V E R I F Y
BOTH BRUSHES ARE OPERATING
--- IF ONLY ONE MOTOR IS OPERATING: REPLACE OPEN WIRE OR
MOTOR
--- NOTE: CHECK FOR BROKEN BELTS ON THE CYLINDRICAL HEAD
--- IF BOTH BRUSHES ARE TURNING--- ---IGNORE THIS ERROR
--- SYSTEM IS TESTING GOOD
IF ERROR READS = ”HIGH BRUSH CURRENT”
(SCRUB BUTTON HELD, DOWN PRESSURE LED #4 IS LIT)
--- GO INTO MANUAL MODE, TURN ON SCRUB BRUSHES
--- MEASURE BRUSH CURRENT WITH AMP PROBE
--- REPLACE MOTORS WITH EXCESSIVE AMP DRAW
-- IF NONE OF THESE ERRORS ARE FOUND ON THE
MACHINE: THE SCRUB SYSTEM IS PASSING SELF--
DIAGNOSTICS
-- DETERMINE WHAT OTHER ERROR WAS CAUSING
THE SELF TEST FAILURE-- -- TROUBLESHOOT THAT
SECTION
IF ERROR READS = ”ZERO BRUSH CURRENT”
(AND BRUSH MOTORS DID NOT TURN ON DURING SELF TEST)
---RUNMANUALMODE(SEEPAGE4---62)
--- TURN ON SCRUB SYSTEM
--- 12A/GRN IS BEING SWITCHED TO GROUND AT P3--- 11, TURNING
ON M3, AND SUPPLYING VOLTAGE TO BRUSH MOTORS
--- M3 IS BAD OR 12A/GRN, 10E/YEL, 1B/RED, 4/YEL, 4A/YEL, CB--- 8,
CB--- 9, 64/PUR, 62/BLU, 13AH/BLK, 13AJ/BLK, OR THE SHUNT HAR-
NESS IS OPEN
--- CHECK FOR VOLTAGE FROM 62/BLU TO 66/GRN AND FROM
64/PUR TO 66/GRN AT THE BRUSH MOTORS--- --- IF VOLTAGE = B+
REPLACE BRUSH MOTORS
--- I F V O LT A G E = 0 V O LT A G E --- --- G O T O S T E P 6
T15 Operating & Configuration Modes
(Page 7 of 12)
SELF TEST MODE TROUBLESHOOTING (cont'd)
E
T15 331555 (05-2007) 255
T15 Operating & Configuration Modes
(Page 8 of 12)
Allows the technician to exercise individual
functions on the machine. This mode disregards
the effects of various interlocks. DO NOT scrub
with the machine in this mode.
1) Press and hold the “ES” or “FaST”
button.
2) Turn key switch to the start position,
then release key.
3) Hold “ES” or “FaST” button for 5
seconds.
4) Release the “ES” or “FaST” button.
Battery LED # 3 will flash.
MANUAL
MODE
Function / NotesEntry Sequence / IndicatorMode
MANUAL MODE
The purpose of the manual mode is to allow the technician to exercise individual functions on the machine. This
mode disregards the effects of various interlocks. Do not scrub with the machine in this mode.
FOR SAFETY: When Servicing Machine, Avoid Moving
Parts. Do Not Wear Loose Jackets, Shirts, Or Sleeves.
After entering the Manual Mode, the control buttons assume the following functions:
SCRUB BUTTON - Pressing the Scrub button will turn on and lower the main scrub head. Holding the Scrub
button while scrub is active will cause the down pressure to scroll. The head will continue down as long as
the technician holds the scrub button. Care must be exercised by the technician not to hold the button
too long. The actuator can stall when fully extended. Damage to the controller board and the actuator
can result from continuing to provide power to a stalled actuator. The head will stay down with the brushes
running regardless of the state of the propel pedal reverse switch. The head will automatically rise when the user
turns off the brushes.
SQUEEGEE BUTTON - Pressing the Squeegee button will turn on the vacuum fan and lower the squeegee.
WARNING: Reverse is ignored in this mode. Squeegee will not automatically raise when in reverse.
ES or FaST BUTTON - Pressing the ES/FaST button will toggle the ES pump or FaST system ON or OFF. In
the ON position, the ES pump or FaST system will run regardless of the state of the floats. Care should be taken
not to run the ES or FaST pump(s) dry for more than a few seconds. The ES Air flush valve will cycle ON and
OFF every 5 seconds.
INTERLOCKS -The following table shows inputs and outputs that are enabled by the various states of the
inputs and interlocks during the Normal Scrub Mode. If certain functions do not work during Normal Scrub Mode,
verify that the particular component functions during Manual Mode to determine if an input or interlock problem
exists.
E
256 T15 331555 (05-2007)
T15 Operating & Configuration Modes
(Page 9 of 12)
Main Contactor (M1) EXEX X
Propel Motor Forward
(note 1) EXEXEXEXXX X
Propel Motor Reverse
(note 1) EXEXEX X EXX X
Low Speed Propel Mode
(note 2) EXEXEXEXEXEE
XX
Brake Engaged
(Solenoid De-energized) EEE XXEE E
Brake Disengaged
(Solenoid Energized) EXEXEXEEXXEX
Scrub Head Lower EXEXEXEXEXXX
Scrub Head Lift EXXEE
XEnote
3
note
3XEEX
Scrub Motors EXEXEXEXEXEEXXEXXX
Conventional
Solution Valve EXEXEXEXEXEEXXEXXX
Squeegee Lower EXEXEXEXEX X XXX
Squeegee Lift EXXEXEE
XEEEE
X
Vacuum Fan Motor(s)
(note 4) EXEXEXEXEX X XXX
ES Pump EXEXEXEXEXXEE
X XXX
ES Filter Flush EXEXEXEXEXXEE
X XXX
FaST System EXEXEXEXEXEXEEXXEXXX
Sweep System EXEXEEE
XXX
Dust Control System EXEXEE EEXXX
Power Wand Pump EXEXEX
Right Side Sweep Brush EXEXEX
Back-Up Alarm EXEX X EXX
Hour Meter
(NOTE 5) EXEE E
XEE E X
Horn EXEXEX
Operating Lights EXEXEX
Battery
Meter Reset E
E = Input that will ENABLE Outpu
t
NOTE (1) = Propel functions disabled if both brake and throttle pedals are pressed
X = Input that will DISABLE Output NOTE (2) = Low Speed Propel Mode reduces maximum propel speed when scrubbing or sweeping
NOTE (3) = Scrub head raises slightly (less down pressure) in Neutral and Reverse
NOTE (4) = Reverse propel raises squeegee and turns OFF vacuum fan(s) after a short delay
NOTE (5) = Hour Meter is activated anytime Vacuum Fan Motors are ON AND/OR machine is in motion (propelling)
Scrub Brush Motors ON -
FAULT Detected
Touch Panel Squeegee/ Vacuum
Fan Switch ON
Key Switch (S1) OFF
Touch Panel Scrub Switch ON
Touch Panel Scrub Switch OFF
Touch Panel Squeegee/ Vacuum
Fan Switch OFF
Touch Panel ES/
FaST Switch OFF
Propel Pedal
FORWARD
Propel Pedal
NEUTRAL
Propel Pedal
REVERSE
Brake Pedal Switch
(SW2) - Pedal Depressed
Solution Tank Full Switch
(S9) - Tank NOT FULL
Recovery Tank Half Full Switch
(S5) - Tank NOT half FULL
Solution Tank Full Switch
(S9) - Tank FULL
Right Side Sweep
Brush Switch (S12) ON
Outputs
Operating Lights
Switch (S8) ON
Emergency Stop Switch
(S2) - Button NOT Pressed
Inputs and the Outputs
they Control
Key Switch (S1) ON
Emergency Stop Switch
(S2) - Button Pressed
Recovery Tank Full Switch
(S4) - Tank FULL
Seat Switch (S3) -
Operator ON seat
Seat Switch (S3) -
Operator OFF seat
Touch Panel ES/
FaST Switch ON
Scrub Motors ON -
NO FAULTS
In
p
uts
Recovery Tank Full Switch
(S4) - Tank NOT FULL
Batteries Disconnected
Battery Voltage
below 31.5 Volts
Sweep System
Switch (S10) ON
Sweep Dust Control
Switch (S11) ON
Power Wand Switch (S6) ON
Horn Switch (S7) -
Button Depressed
Recovery Tank Half Full Switch
(S5) - Tank half FULL
E
T15 331555 (05-2007) 257
Allows the technician to observe the effectiveness
of various inputs and sensors on the machine
controller board. When in this mode, the
technician can scrub with the machine as normal
and observe the operation of the various inputs.
1) Press and hold the “Scrub” button.
2) Turn key switch to the start position,
then release key.
3) Hold “Scrub” button for 5 seconds.
4) Release the “Scrub” button. Battery
LED # 2 will flash.
INPUT
DISPLAY
MODE
Function / NotesEntry Sequence / IndicatorMode
INPUT DISPLAY MODE
The purpose of the Input Display Mode is to observe the effectiveness of various inputs and sensors on the
Machine Control Board. When in Input Display Mode, the machine will scrub normally but the LED’s on the
instrument panel no longer correspond to the normal control status. Each of the control panel LED’s are
associated with one board input. When an input is activated, the corresponding LED will become illuminated. For
instance, in the normal mode, if the Squeegee/Vacuum Fan LED is on, this means that the squeegee and
vacuum fan are active. In the Input Display Mode, this LED indicates that the solution tank is full. The buttons
however, retain their normal functions. Pressing the squeegee button will turn on the squeegee and vacuum fan,
even though the LED may not turn on. The Machine Control Board will temporarily display scrub pressure when
the scrub button is pressed and held. If the scrub button is held long enough, the machine will scroll slowly
through the various down pressures. Refer to the chart below for LED assignments while in Input Display Mode.
Machine controller is in Input Display ModeBlinkingBrush Pressure 2
ON
ON
ON
ON
ON
ON
ON
ON
ON
Blinking
status
Power sensed on outputs of both brush motor circuit breakersBattery 4
Forward propel activeBattery 3
Reverse propel activeBattery 2
Battery voltage below 31.5V – charge batteries immediatelyBattery 1
Recovery tank is half FULL or higherES/FaST
Recovery tank is FULLRecovery Tank Full
Solution tank is FULLSqueegee/Vacuum Fan
Brush current above maximum level for selected pressure levelBrush Pressure 4
Scrubbing system ONBrush Pressure 3
Brush current below minimum level for selected pressure levelBrush Pressure 1
descriptionLED
1234
1234
ES/FaST LED
Squeegee/
Vacuum Fan LED
Battery
LED’s
Brush Pressure LED’s
Recovery Tank
Full LED
T15 Operating & Configuration Modes
(Page 10 of 12)
E
258 T15 331555 (05-2007)
Toggles the machine between normal and a
restricted down pressure setting. The normal
mode allows all four down pressure LED settings.
The restricted mode allows only three LED
settings. Each time the Restricted Down Pressure
Mode is entered, the machine will toggle between
normal and restricted down pressure modes.
1) Press and hold both the “Squeegee/
Vacuum Fan” and “Scrub” buttons.
2) Turn key switch to the start position,
then release key.
3) Hold “Squeegee/Vacuum Fan” and
“Scrub” buttons until three OR four
brush pressure LED’s start flashing.
4) Release the “Squeegee/Vacuum
Fan” and “Scrub” buttons and turn key
switch OFF. The mode has now been
toggled.
RESTRICTED
DOWN
PRESSURE
MODE
Function / NotesEntry Sequence / IndicatorMode
3 Flashing Brush Pressure LED’s
RESTRICTED DOWN PRESSURE
4 Flashing Brush Pressure LED’s
NORMAL DOWN PRESSURE
Allows only 3 brush pressure settings Allows all 4 brush pressure settings
T15 Operating & Configuration Modes
(Page 11 of 12)
E
T15 331555 (05-2007) 259
T15 Operating & Configuration Modes
(Page 12 of 12)
Displays the machine’s software revision date.
Each sequence of flashes is separated by a
pause, then repeated over and over until the key
switch is turned OFF.
The MONTH is displayed by the number of
flashes of the “ES” or “FaST” LED.
The DAY is displayed by the number of flashes of
the “Squeegee/Vacuum Fan” LED.
The YEAR is displayed by the number of flashes
of the “Recovery Tank Full” LED.
1) Press and hold both the “Squeegee/
Vacuum Fan” and “ES/FaST” buttons.
2) Turn key switch to the start position,
then release key.
3) Hold “Squeegee/Vacuum Fan” and
“ES/FaST” buttons until the ES/FaST
LED begins to flash.
4) Release the “Squeegee/ Vacuum
Fan” and “ES/FaST” buttons. The
software revision date will be flashed on
the touch panel.
5) The flashing sequence will continue
until the key switch is turned OFF.
SOFTWARE
REVISION
DATE
DISPLAY
MODE
Function / NotesEntry Sequence / IndicatorMode
MONTH DAY
YEAR
E
260 T15 331555 (05-2007)
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701 North Lilac Drive
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Minneapolis, MN 55440--9947
TENNANT COMPANY
262 T15 331555 (05-2007)
We Need Your Help...
As part of Tennant’s Zero Defects Program, we want to know about errors you have
found or suggestions you may have regarding our machine manuals. If you find an
error or have a suggestion, please complete this postage-paid form and mail it to us.
Thank you for helping us make zero defects a way of life at Tennant.
Manual No. Rev. No. Publish Date Page
Machine -Report Error -Suggestion
Name Date
Customer Number
Company
Address
City/State/Zip Code
T15 331555 (05-2007) 263
Tape hereFold along dotted lines
NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED SATES
BUSINESS REPLY MAIL
FIRST CLASS MAIL PERMIT NO. 94 MINNEAPOLIS, MN
POSTAGE WILL BE PAID BY ADDRESSEE
Technical Publications #15
701 North Lilac Drive
P.O. Box 1452
Minneapolis, MN 55440--9947
TENNANT COMPANY
264 T15 331555 (05-2007)
