S30 Service Manual Tennant Rider Floor Sweeper

2018-06-12

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S30
Sweeper
Service Information Manual

North America / International

9004086
Rev. 00 (04-2008)

*9004086*

www.tennantco.com

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A
B
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
Thermo--Sentry, Touch--N--Go, 1--STEP, Clean--Wedge, Variable Drain Valve, EasyOpen, Grip--N--Go, MaxPro@, Dura--Track, SmartRelease,
InstantAccess, Duramer, FaST--PAK and ErgoSpace are US registered and unregistered trademarks of Tennant Company.
Specifications and parts are subject to change without notice.
Copyright E 2008 TENNANT Company, Printed in U.S.A.

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S30 SERVICE INFORMATION

Table of Contents

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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GENERAL MACHINE INFORMATION . . . . . . . . . . . . . . . . . .

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GENERAL MACHINE DIMENSIONS/CAPACITIES . . . . . . . . . . . . . . .
GENERAL MACHINE PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . .
HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POWER TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRAKING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MACHINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPONENT LOCATOR (1 OF 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MAINTENANCE & REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE CHECK POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE CHART (1 OF 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR WHEEL SUPPORT (S30 and S30XP) . . . . . . . . . . . . . . . .
STEERING CYLINDER BEARING(S30 and S30XP) . . . . . . . . . .
HOPPER LIFT ARM BEARINGS . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING ROD END (S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING SPINDLES (S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT WHEEL BEARINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HYDRAULICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HYDRAULIC FLUID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HYDRAULIC HOSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL FILTER (Gasoline) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL FILTER (LPG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL FILTER (Diesel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL LINES (Diesel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PRIMING THE FUEL SYSTEM (Diesel) . . . . . . . . . . . . . . . . . . . . .
ELECTRONIC PRESSURE REGULATOR (LPG) . . . . . . . . . . . . .
ENGINE BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIMING BELT (Gasoline/LPG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPARK PLUGS (Gasoline/LPG) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUSES AND RELAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RELAY PANEL FUSES AND RELAYS . . . . . . . . . . . . . . . . . . . . . .
ENGINE HARNESS FUSES AND RELAYS (Gasoline/LPG) . . .
ENGINE HARNESS RELAYS (Diesel) . . . . . . . . . . . . . . . . . . . . . .
CAB FUSES (CAB OPTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING AND INSPECTING THE DUST FILTER . . . . . . . . . . . . .
CLEANING THE DUST FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING OR ROTATING THE MAIN BRUSH . . . . . . . . . . . .
CHECKING THE MAIN BRUSH PATTERN . . . . . . . . . . . . . . . . . .
ADJUSTING THE MAIN BRUSH TAPER . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE MAIN BRUSH WIDTH . . . . . . . . . . . . . . . . . . . .

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S30 9004086 (4--08)

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Table of Contents

S30 SERVICE INFORMATION

MAINTENANCE & REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . cont’d
SIDE BRUSH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE SIDE BRUSH . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE SIDE BRUSH PATTERN . . . . . . . . . . . . . . . . . .
ROTATING AND REPLACING THE SIDE BRUSH GUARD . . . .
SKIRTS AND FLAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER SKIRTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRUSH DOOR SKIRTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR SKIRT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RECIRCULATION FLAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRUSH DOOR SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DUST FILTER SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER INSPECTION DOOR SEALS . . . . . . . . . . . . . . . . . . . . .
FILTER CHAMBER INLET SEAL . . . . . . . . . . . . . . . . . . . . . . . . . . .
DUST RETURN SEALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VACUUM WAND DOOR SEALS (OPTION) . . . . . . . . . . . . . . . . . .
CYCLONIC PRE--FILTER SEALS . . . . . . . . . . . . . . . . . . . . . . . . . .
BRAKES AND TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRAKES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PARKING BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PROPELLING MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PUSHING, TOWING, AND TRANSPORTING THE MACHINE . . . . .
PUSHING OR TOWING THE MACHINE . . . . . . . . . . . . . . . . . . . .
TRANSPORTING THE MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . .
MACHINE JACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STORAGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYMBOLS & ABBREVIATIONS . . . . . . . . . . . . . . . . . .
FUSES AND RELAYS (S30,S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . .
RELAY PANEL FUSES AND RELAYS . . . . . . . . . . . . . . . . . . . . . .
ENGINE HARNESS FUSES AND RELAYS . . . . . . . . . . . . . . . . . .
CAB FUSES (CAB OPTION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S30 ELECTRICAL SCHEMATIC (1 OF 4) . . . . . . . . . . . . . . . . . . . . . . .
S30XP / S30X4 ELECTRICAL SCHEMATIC (1 OF 4) . . . . . . . . . . . .
GASOLINE ENGINE HARNESS ELECTRICAL SCHEMATIC (1 OF 2)
LPG ENGINE HARNESS ELECTRICAL SCHEMATIC (1 OF 2) . . . .
DIESEL ENGINE HARNESS ELECTRICAL SCHEMATIC . . . . . . . . .
CAB HARNESS ELECTRICAL SCHEMATIC . . . . . . . . . . . . . . . . . . . .
S30 WIRE HARNESS DRAWING (1 OF 2) . . . . . . . . . . . . . . . . . . . . . .
S30XP / S30X4 WIRE HARNESS DRAWING (1 OF 3) . . . . . . . . . . .
ALL MACHINES HOPPER COVER WIRE HARNESS DRAWING . .
ALL MACHINES HOPPER WIRE HARNESS DRAWING . . . . . . . . . .
DIESEL ENGINE WIRE HARNESS DRAWING . . . . . . . . . . . . . . . . . .
CAB WIRE HARNESS DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
KEY SWITCH INFORMATION (S30,S30XP,S30X4) . . . . . . . . . . . . . .
KEY OFF POWER DISTRIBUTION (S30) . . . . . . . . . . . . . . . . . . . . . . .
KEY OFF POWER DISTRIBUTION (S30XP,S30X4) . . . . . . . . . . . . . .
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S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Table of Contents

ELECTRICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cont’d
KEY ON POWER DISTRIBUTION (S30) . . . . . . . . . . . . . . . . . . . . . . . .
KEY ON POWER DISTRIBUTION (S30XP,S30X4) . . . . . . . . . . . . . . .
MAIN & SIDE BRUSHES ON (S30) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAIN & SIDE BRUSHES ON (S30XP,S30X4) . . . . . . . . . . . . . . . . . . .
VACUUM FAN ON (S30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VACUUM FAN ON (S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FILTER SHAKER ON (S30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FILTER SHAKER ON (S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER LIFT (S30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER LIFT (S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER LOWER (S30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER LOWER (S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER DOOR OPEN -- AUTOMATIC (S30) . . . . . . . . . . . . . . . . . . .
HOPPER DOOR OPEN -- MANUAL (S30) . . . . . . . . . . . . . . . . . . . . . .
HOPPER DOOR OPEN (S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER DOOR CLOSE -- AUTOMATIC (S30) . . . . . . . . . . . . . . . . . .
HOPPER DOOR CLOSE (S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . . . .
DISPLAY MODULE FAULT INDICATORS (S30) . . . . . . . . . . . . . . . . .
FAULT INDICATORS (S30XP,S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . .
DASH FAULT INDICATORS (S30,S30XP,S30X4) . . . . . . . . . . . . . . . .
OPERATING, MAINT., & DIAG. MODES (S30XP,S30X4) (1 OF 2) .
CIRCUIT BOARD PIN FUNCTIONS (S30XP,S30X4) . . . . . . . . . . . . .

HYDRAULIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION (S30, S30XP, S30X4) (1 OF 2) . . . . . . . .
HYDRAULIC SCHEMATIC (S30, S30XP) (1 OF 2) . . . . . . . . . . . . . . .
HYDRAULIC SCHEMATIC (S30X4) (1 OF 2) . . . . . . . . . . . . . . . . . . . .
OVERALL HYDRAULIC HOSE DIAGRAM (S30) . . . . . . . . . . . . . . . . .
OVERALL HYDRAULIC HOSE DIAGRAM (S30XP) . . . . . . . . . . . . . .
OVERALL HYDRAULIC HOSE DIAGRAM (S30X4) . . . . . . . . . . . . . .
RESERVOIR HOSE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLER HOSE & TUBE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . .
PUMPS DIAGRAM (S30, S30XP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PUMPS DIAGRAM (S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VALVE BLOCK DIAGRAM (S30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VALVE BLOCK DIAGRAM (S30XP, S30X4) . . . . . . . . . . . . . . . . . . . . .
PRIORITY AND FLOW DIVIDER VALVE DIAGRAM (S30X4) . . . . . .
LEFT SIDE BRUSH HYDRAULIC DIAGRAM (S30XP, S30X4) . . . . .
MAIN BRUSH ON (S30, S30XP, S30X4) . . . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH & SIDE BRUSH(ES) ON (S30, S30XP, S30X4) . . . . .
HOPPER DOOR OPEN (S30, S30XP, S30X4) . . . . . . . . . . . . . . . . . . .
HOPPER DOOR CLOSE (S30, S30XP, S30X4) . . . . . . . . . . . . . . . . . .
HOPPER LIFT (S30, S30XP, S30X4) . . . . . . . . . . . . . . . . . . . . . . . . . . .
HOPPER LOWER (S30, S30XP, S30X4) . . . . . . . . . . . . . . . . . . . . . . . .
VACUUM FAN ON (S30, S30XP, S30X4) . . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH LOWER (S30XP, S30X4) . . . . . . . . . . . . . . . . . . . . . . . .
MAIN BRUSH & SIDE BRUSH(ES) LOWER (S30XP, S30X4) . . . . . .
3--WHEEL STEERING SYSTEM (S30, S30XP) . . . . . . . . . . . . . . . . . .
4--WHEEL STEERING SYSTEM (S30X4) . . . . . . . . . . . . . . . . . . . . . . .
3--WHEEL PROPEL SYSTEM (S30, S30XP) . . . . . . . . . . . . . . . . . . . .
4--WHEEL PROPEL SYSTEM (S30X4) . . . . . . . . . . . . . . . . . . . . . . . . .

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S30 9004086 (4--08)

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Safety Precautions

S30 SERVICE INFORMATION
SAFETY PRECAUTIONS

The following precautions are used throughout this
manual as indicated in their description:

CALIFORNIA PROPOSITION 65 WARNING:
Engine exhaust from this product contains
chemicals known to the State of California
to cause cancer, birth defects, or other
reproductive harm.

WARNING: To warn of hazards or unsafe
practices that could result in severe
personal injury or death.

FOR SAFETY:
CAUTION: To warn of unsafe practices that
could result in minor or moderate personal
injury.
FOR SAFETY: To identify actions that must be
followed for safe operation of equipment.
Do not use the machine other than described in this
Operator Manual. The machine is not designed for
use on public roads.
The following information signals potentially
dangerous conditions to the operator or equipment:
WARNING: Flammable materials or reactive
metals can cause an explosion or fire. Do
not pickup.
WARNING: Moving belt and fan. Keep away.
WARNING: Engine emits toxic gases.
Serious injury or death can result. Provide
adequate ventilation.
WARNING: Raised hopper may fall. Engage
hopper support pin.
WARNING: Lift arm pinch point. Stay clear
of hopper lift arms.
WARNING: Burn hazard. Hot surface. Do
NOT touch.
WARNING: Machine can emit excessive
noise. Hearing loss can result. Wear
hearing protection.
CAUTION: LPG engine will run for a few
seconds after key is turned off. Apply
parking brake before leaving machine.

1. Do not operate machine:
-- Unless trained and authorized.
-- Unless operator manual is read and
understood.
-- If it is not in proper operating condition.
-- In flammable or explosive areas.
-- In areas with possible falling objects
unless equipped with overhead guard.
2. Before starting machine:
-- Check for fuel, oil, and liquid leaks.
-- Keep sparks and open flame away from
refueling area.
-- Make sure all safety devices are in place
and operate properly.
-- Check brakes and steering for proper
operation.
3. When starting machine:
-- Keep foot on brake and directional pedal
in neutral.
4. When using machine:
-- Always wear safety belt (if so equipped)
-- Do not pick up burning or smoking
debris, such as cigarettes, matches or hot
ashes
-- Use brakes to stop machine.
-- Go slow on inclines and slippery
surfaces.
-- Use care when reversing machine.
-- Move machine with care when hopper is
raised.
-- Make sure adequate clearance is available
before raising hopper.
-- Do not carry passengers on machine.
-- Always follow safety and traffic rules.
-- Report machine damage or faulty
operation immediately.

WARNING: Accident may occur. Do not
operate vacuum or blower wand while
driving.

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S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Safety Precautions

5. Before leaving or servicing machine:
-- Stop on level surface.
-- Set parking brake.
-- Turn off machine and remove key.
6. When servicing machine:
-- Avoid moving parts. Do not wear loose
jackets, shirts, or sleeves.
-- Block machine tires before jacking
machine up.
-- Jack machine up at designated locations
only. Support machine with jack stands.
-- Use hoist or jack that will support the
weight of the machine.
-- Wear eye and ear protection when using
pressurized air or water.
-- Disconnect battery connections before
working on machine.
-- Avoid contact with battery acid.
-- Avoid contact with hot engine coolant.
-- Do not remove cap from radiator when
engine is hot.
-- Allow engine to cool.
-- Keep flames and sparks away from fuel
system service area. Keep area well
ventilated.
-- Use cardboard to locate leaking hydraulic
fluid under pressure.
-- Use Tennant supplied or approved
replacement parts.
7. 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 drive the machine
onto/off the truck or trailer unless the load
height is 380 mm (15 in) or less from the
ground.
-- Set parking brake after machine is loaded.
-- Block machine tires.
-- Tie machine down to truck or trailer.

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S30 SERVICE INFORMATION

viii

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

General Machine Information

GENERAL

G

MACHINE
INFORMATION
BEFORE CONDUCTING TESTS:
* Read and Follow ALL Safety Warnings and Precautions as mentioned
at the beginning of this manual
* Always unhook Battery when removing or replacing components

DURING TESTS:
* Call Technical Services if Diagnostic Time Exceeds One Hour With
Unknown Cause or Course of Action

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.
1

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General Machine Information

S30 SERVICE INFORMATION
SPECIFICATIONS

GENERAL MACHINE DIMENSIONS/CAPACITIES

G

Item

Dimension/capacity

Length

2360 mm (93 in)

Height

1475 mm (58 in)

Height (with overhead guard)

2095 mm (82.5 in)

Width/frame

1590 mm (62.5 in)

Cleaning path width (Single side brush)

1590 mm (62.5 in)

Cleaning path width (Dual side brushes)

2030 mm (80 in)

Main brush diameter

356 mm (14 in)

Side brush diameter

660 mm (26 in)

Debris hopper volume capacity (Plastic and Steel)
Debris hopper weight capacity (Plastic)

395 L (14 ft3)
490 kg (1080 lbs)

Debris hopper weight capacity (Steel)

545 kg (1200 lbs)

Dump height (variable to)

1525 mm (60 in)

Minimum ceiling dump height

2500 mm (98 in)

Weight -- empty
GVWR

1595 Kg (3520 lbs)
2585 Kg (5700 lbs)

Transport ground clearance

100 mm (4 in)

Operating Sound Level At Operator Ear

80 r1.5 dBA

Vibration level at steering wheel does not exceed

0.2 m/s@

GENERAL MACHINE PERFORMANCE
Item

Measure

Minimum aisle turn

2870 mm (113 in)

Travel speed forward (maximum) (S30 and S30XP)

16.0 Km/h (10 mph)

Travel speed forward (maximum) (S30X4)

24.0 Km/h (15 mph)

Travel speed reverse (maximum)

5.0 Km/h (3 mph)

Maximum rated climb and descent (full hopper)

10_/18%

Maximum rated climb and descent (empty hopper)

14_/25%

HYDRAULIC SYSTEM
System

Capacity

Hydraulic reservoir

38 L (10 gal)

Hydraulic total

45 L (12 gal)

Fluid Type
TENNANT part no. 65869 -- above 7_ C (45_ F)
TENNANT part no. 65870 -- below 7_ C (45_ F)

STEERING
Type

Power source

Rear wheel, hydraulic cylinder

Hydraulic accessory pump

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General Machine Information

POWER TYPE
Engine
GM 1.6

Type
Piston

Ignition
Distributorlesstype spark
Displacement
1600 cc (98 cu in)
Fuel
Gasoline, 87 octane
minimum, unleaded
Fuel tank: 42 L (11.2 gal)
LPG,,
F l ttank:
Fuel
k 15 kg
k (33 lb)
Idle speed, no load
1350 + 50 rpm

Spark plug gap
1 mm (0.035 in)
Engine
Type
Kubota V1505--B Piston

Ignition
Diesel

Cycle
4

Aspiration
Natural

Cylinders Bore
Stroke
4
79 mm
81.5 mm
(3.11 in)
(3.21 in)
Net power, governed
Net power, maximum
23.2 kw (32 hp) @ 2400 rpm
41 kw (55 hp) @
4000 rpm
Cooling system
Electrical system
Water/ethylene glycol
12 V nominal
antifreeze
Total: 7.5 L (2 gal)
Radiator: 3.8 L (1 gal)
(Fast) governed speed, under
load
Normal sweep mode:
2000 + 50 rpm
Litter sweep mode:
2400 + 50 rpm
Valve clearance, cold
No Adjustment
OHC Engine
Cycle
4

Aspiration
Natural

G

75 A alternator
Firing order
1--3--4--2

Engine lubricating oil
with filter
3.5 L (3.7 qt) 5W30
SAE--SG/SH

Cylinders Bore
4
78 mm
(3.07 in)

Stroke
78.4 mm
(3.08 in)

Displacement

Net power, governed

Net power, maximum

1500 cc (91.4 cu in)

24.6 kw (34 hp) @ 2400 rpm

27.2 kw (37.5 hp) @
3000 rpm

Fuel
Diesel
Fuel tank: 42 L (11.2 gal)

Cooling system

Electrical system

Water/ethylene glycol
antifreeze

12 V nominal

Total: 7.5 L (2 gal)

75 A alternator

Radiator: 3.8 L (1 gal)
Idle speed, no load

(Fast) governed speed, under
load

Engine lubricating oil
without filter

1350 + 50 rpm

2000 + 50 rpm
2400 + 50 rpm

6 L (6.35 qt)
Diesel rated engine oil
above CD grade only

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General Machine Information

S30 SERVICE INFORMATION

BRAKING SYSTEM

G

Type

Operation

Service brakes

Mechanical drum brakes (2), one per front wheel,
cable actuated

Parking brake

Utilize service brakes, cable actuated

TIRES
Location

Type

Size

Front (2)

Solid

127 mm x 535 mm (5 in x 21 in)

Rear (1)
(S30 and S30XP)

Pneumatic

115 mm x 470 mm (4.5 in x 18.5 in)

Rear (2) (S30X4)

Foam Fill

115 mm x 410 mm (4.5 in x 16 in)

MACHINE DIMENSIONS

1475 mm
(58 in)

2360 mm
(93 in)

1590 mm
(62.5 in)
354726

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S30 SERVICE INFORMATION

General Machine Information
Component Locator
(page 1 of 6)

1

3

2

10

11

9

12

4

G

6

5

S30
7
15
8

1

3

2

4

5

6

S30XP/S30X4
14
15

13

8

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.

Instrument panel
Indicator panel
Dash Fault Indicator lights (LP8,LP9,LP10,LP11,LP12)
Wand switch (option) (SW21)
Side brush light switch (option) (SW17)
Operating / hazard light switch (SW12)
Side Brush Lever Switch (SW7)
Horn button (SW19)
Hopper raise / lower switch (SW22)
Engine speed switch (SW6)
Vacuum fan / filter shaker switch (SW18)
Hopper door switch (SW3)
Sweeping function buttons (see next page)
Supervisor control buttons (see next page)
Fuse & relay panel

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General Machine Information

S30 SERVICE INFORMATION
Component Locator
(page 2 of 6)

G

S30XP/S30X4
1

2

3

13

7
4

12

6
11

5
8

10
9

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.

Supervisor control buttons
Hour meter / fuel indicator / fault code indicator
Contrast control button
1--STEP sweep button
Engine speed button
Vacuum fan button
Side brush button
Hopper door open button
Hopper door close button
Hopper lower button
Hopper raise button
Filter shaker button
Fault indicator light

6

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S30 SERVICE INFORMATION

General Machine Information
Component Locator
(page 3 of 6)

S30XP/S30X4

All machines

G

1

1
3
2

FRONT

FRONT

LPG Engines

Diesel Engines

7
5

6

4

5

8

FRONT

FRONT

Gasoline Engines

All machines

6
7

10

9
5

8

FRONT

1.
2.
3.
4.
5.
6.

11

FRONT

Fuse & relay panel
7. Fuel Pump (PUMP1)
Main Brush Lift Cylinder (CYL4)
8. Fuel Sending Unit (SNDR1 or S2)
Steering Priority Valve (S30X4 Only)
9. Fuel Pressure Regulator
Low Fuel Pressure Switch (SW2 or S3)
10. Propel System Hydraulic Pump (PUMP1)
Steering Cylinder (S30/S30XP Only -- CYL5) 11. Accessory Hydraulic Pumps (PUMP2, 3, & 4)
Fuel Filter

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General Machine Information

S30 SERVICE INFORMATION
Component Locator
(page 4 of 6)

Gasoline/LPG Engines

G

2

3

Diesel Engines

4
5

1

6

9

8

10

6

11

7

7

FRONT

FRONT

S30X4

All machines

12

TOP VIEW

7
14
15
13

16
FRONT

FRONT

All machines

All machines
19

21
20

18

22

17
6
FRONT

FRONT

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.

Engine Fuse & Relay Panel
Fuel Filter (LPG Only)
Electronic Fuel Pressure Regulator (LPG Only)
Fuel Lockoff Valve (LPG Only)
Engine Control Module
Alternator Pull--Up Resistor (R1)
Engine Radiator
Engine Speed Governor Controller (CNTRL2)
Diesel Engine Control Relays (M9,10,11, &12)
Starter Engagement Timer (TMR2)
Glow Plugs 40A Fuse (F13)

12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.

Hydraulic Oil Cooler (HTX)
Engine Fan Motor (MTR6)
Propel System Flow Divider Valve
Steering Cylinder (CYL5)
Left & Right Propel Motors (MTR6 & MTR7)
Hydraulic Valve Manifold
Hydraulic Oil Temp. Sender (SNDR3 or S7)
Main Brush Lever Switch (S30 Only -- SW5)
Hydraulic Oil Reservoir (RES1)
Reservoir Cap & Oil Level Indicator
Hydraulic Oil Filter (FLTR)

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S30 SERVICE INFORMATION

General Machine Information
Component Locator
(page 5 of 6)

All machines

All machines
1

1

3

4

G

3

2

2

FRONT

FRONT

All machines

All machines

8

6
9

10

9

7

11
1

5

FRONT

FRONT

All machines

S30XP/S30X4
TOP VIEW

12
14

10

FRONT

1.
2.
3.
4.
5.
6.
7.

13

11

13

FRONT

Clogged Dust Filter Switch (SW8 or S8)
Hydraulic Valve Manifold
Battery
Vacuum Fan Motor (MTR5)
Dust Filter Shaker Motor (MTR1)
Main Brush Lever Switch (S30 Only -- SW5)
Hydraulic Oil Reservoir (RES1)

8.
9.
10.
11.
12.
13.
14.

Reservoir Cap & Oil Level Indicator
Hydraulic Oil Filter (FLTR)
Hopper Position Switch (SW16)
Thermo--Sentry Switch (SW14)
Horn (LS1)
Side Brush Motor (MTR2)
Side Brush Lift Cylinder (CYL3)

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General Machine Information

S30 SERVICE INFORMATION
Component Locator
(page 6 of 6)

G
All machines

1
2

3
6
5

1.
2.
3.
4.
5.
6.

4

Hopper Door Cylinder (CYL1)
Hopper Lift Cylinder (CYL2)
Horn (LS1)
Hopper Position Switch (SW16)
Brake Switch (S15)
Steering Valve

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S30 SERVICE INFORMATION

Maintenance & Repair

MAINTENANCE
& REPAIR
M
BEFORE CONDUCTING TESTS:
* Read and Follow ALL Safety Warnings and Precautions as mentioned
at the beginning of this manual
* Always unhook Battery when removing or replacing electrical
components

DURING TESTS:
* Call Technical Services if Diagnostic Time Exceeds One Hour With
Unknown Cause or Course of Action

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.
11

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Maintenance & Repair

S30 SERVICE INFORMATION
MAINTENANCE

2

3

10

M

1
9

12
8
15
14
7

13

5

11

5

6
4

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MAINTENANCE
MAINTENANCE CHART

Interval
Daily

Key
1

Description
Engine

No. of
Lubricant/ Service
Fluid
Points

Procedure
Check oil level

EO

1

Check coolant level in reservoir

WG

1

−

1

Check air filter indicator

50 Hours

100 Hours

200 Hours

2

Hydraulic fluid reservoir

Check fluid level

HYDO

1

3

Dust filter

Shake to clean

−

1

4

Main brush compartment
skirts

Check for damage, wear, and
adjustment

−

All

5

Hopper skirts

Check for damage, wear, and
adjustment

−

All

6

Main brush

Check for damage and wear

−

1

7

Side brush

Check for damage and wear

−

1

6

Main brush

Rotate end-for-end and check
pattern

−

1

8

Rear wheel

Torque wheel nuts (after initial
50 hours only)

−

1

9

Battery

Clean and tighten battery cable
connections (after initial 50
hours only)

−

1

1

Engine

Check belt tension

−

1

1

Engine

Change oil and filter

EO

1

Drain oil from electronic pressure
regulator (EPR)

−

1

3

Dust filter

Check for damage, clean or
replace

−

1

10

Radiator

Clean core exterior

−

1

10

Hydraulic cooler

Clean core exterior

HYDO

1

8

Rear tire

Check pressure

−

1

−

Seals

Check for damage or wear

−

All

10

Radiator hoses and clamps Check for tightness and wear

−

All

11

Parking brake

Check adjustment

−

1

11

Brake pedal

Check adjustment

−

1

12

Rear wheel support
bearings

Lubricate

SPL

2

12

Steering cylinder bearings

Lubricate

SPL

1

13

Hopper lift arm bearings

Lubricate

SPL

2

14

Side brush guard

Rotate 90_

−

1

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MAINTENANCE

Interval

Key

400 Hours

1

Description
Engine

Procedure

No. of
Lubricant/ Service
Fluid
Points

Clean and re−gap or replace
spark plugs

−

4

Replace fuel filter (Gas/LPG)

−

1

15

Front wheels

Adjust and repack bearings

SPL

2

2

Hydraulic fluid reservoir

Replace filler cap

−

1

1

Engine

Check timing belt

−

1

−

Hydraulic hoses

Check for wear and damage

−

All

10

Cooling system

Flush

WG

1

8

Propelling motor

Torque shaft nut

−

1

8

Rear wheel

Torque wheel nuts

−

1

9

Battery

Clean and tighten battery cable
connections

−

1

1200
Hours
2000
Hours

2

Hydraulic fluid filter

* Change filter element

−

All

1

Engine

Replace timing belt

2400
Hours

2

Hydraulic fluid reservoir

* Replace suction strainer
* Change hydraulic fluid

800 Hours

1
−
HYDO

1
1

NOTE: Change the hydraulic fluid, filter, and suction strainer, indicated (*), after every 800 hours for
machines NOT originally equipped with TennantTrue premium hydraulic fluid. (See Hydraulics section).
LUBRICANT/FLUID
EO . . . .
HYDO .
WG . . .
SPL . . .

Engine oil, 5W30 SAE−SG/SH only.
TennantTrue premium hydraulic fluid or equivalent
Water and ethylene glycol anti-freeze, −34_ C (−30_ F)
Special lubricant, Lubriplate EMB grease (Tennant part number 01433−1)

NOTE: More frequent maintenance intervals may be required in extremely dusty conditions.

35

S30 Gas/LPG 9004080 (3−2012)

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S30 SERVICE INFORMATION

Maintenance & Repair
REAR WHEEL SUPPORT (S30 and S30XP)

LUBRICATION

Lubricate the rear wheel support bearings after every
200 hours of operation.

ENGINE OIL
Check the engine oil level daily. Change the oil and oil
filter after every 100 hours of operation.

GAS/LPG
Gas/LPG engines: Fill the engine with oil until the oil
is between the indicator marks on the dipstick. DO
NOT fill past the top indicator mark. The engine oil
capacity is 3.5 L (3.7 qt) with oil filter.

M
STEERING CYLINDER BEARING
(S30 and S30XP)
Lubricate the steering cylinder after every 200 hours
of operation.

DIESEL
Diesel engines: Fill the engine with oil until the oil is
between the indicator marks on the dipstick. DO NOT
fill past the top indicator mark. The engine oil capacity
is 6 L (6.35 qt) with oil filter.

HOPPER LIFT ARM BEARINGS
Lubricate the hopper lift arm bearings after every 200
hours of operation.

15

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S30 SERVICE INFORMATION

STEERING ROD END (S30X4)

FRONT WHEEL BEARINGS

Lubricate the steering rod end and spindles after
every 200 hours of operation.

Repack and adjust the front wheel bearings every 400
hours of operation.

M
STEERING SPINDLES (S30X4)
Lubricate the steering after every 200 hours of
operation.

16

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MAINTENANCE
HYDRAULICS
Check the hydraulic fluid level at operating
temperature daily. The hopper must be down
when checking hydraulic fluid level.

NOTE: Change the hydraulic fluid, filter, and
suction strainer after every 800 hours for ALL
machines that have NOT consistently used
TennantTrue premium hydraulic fluid or
equivalent.
The reservoir has a built-in strainer outlet that
filters hydraulic fluid before it enters the system.
Replace the strainer after every 2400 hours of
operation.
Replace the hydraulic fluid filter after every 1200
hours of operation or if the hydraulic reservoir
gauge is in the yellow/red zone when the reservoir
hydraulic fluid is approximately 32_C (90_ F).

A filler cap is mounted on top of the reservoir. It
has a built-in breather and fluid level dipstick.
Replace the cap after every 800 hours of
operation.
Lubricate the filler cap gasket with a film of
hydraulic fluid before putting the cap back on the
reservoir.
ATTENTION! Do not overfill the hydraulic fluid
reservoir or operate the machine with a low
level of hydraulic fluid in the reservoir.
Damage to the machine hydraulic system may
result.
Drain and refill the hydraulic fluid reservoir with
new TennantTrue premium hydraulic fluid after
every 2400 hours of operation. Machines have a
blue colored drop (left photo) on the hydraulic fluid
label if originally equipped with TennantTrue
premium hydraulic fluid.

HYDRAULIC FLUID
There are two fluids available for different
temperature ranges:
TennantTrue premium
hydraulic fluid (Extended Life)
Part
number

Ambient
temperature

ISO
CaGrade pacity

1057710 above 7_ C (45_ F)

100

3.8 L
(1 gal)

1057711

100

19 L
(5 gal)

1057707 below 7_ C (45_ F)

32

3.8 L
(1 gal)

1057708 below 7_ C (45_ F)

32

19 L
(5 gal)

above 7_ C (45_ F)

If using a locally-available hydraulic fluid, be sure
the specifications match Tennant hydraulic fluid
specifications. Substitute fluids can cause
premature failure of hydraulic components.

TennantTrue Fluid

Previous Fluid

ATTENTION! Hydraulic components depend
on system hydraulic fluid for internal
lubrication. Malfunctions, accelerated wear,
and damage will result if dirt or other
contaminants enter the hydraulic system.
37

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S30 SERVICE INFORMATION

HYDRAULIC HOSES
Check the hydraulic hoses after every 800 hours of
operation for wear or damage.

ENGINE
COOLING SYSTEM

FOR SAFETY: When servicing machine, use
cardboard to locate leaking hydraulic fluid under
pressure.

FOR SAFETY: When servicing machine, avoid
contact with hot engine coolant.

High pressure fluid escaping from a very small hole
can almost be invisible, and can cause injury.

Check the coolant level in the reservoir daily. The
coolant level must be between the two indicator
marks when the engine is cold.

M
GAS/LPG

00002

Contact appropriate personnel if a leak is discovered.
ATTENTION: Only use TENNANT supplied
hydraulic hoses or equivalent rated hydraulic
hoses.

DIESEL

FOR SAFETY: When servicing machine, do not
remove cap from radiator when engine is hot.
Allow engine to cool.
Check the coolant level in the radiator after every 100
hours of operation. Refer to the label on the coolant
container for water/coolant mixing instructions.
Flush the radiator and the cooling system after every
800 hours of operation.

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S30 SERVICE INFORMATION

Maintenance & Repair

The cooling system must be completely filled with
coolant to keep the engine from overheating. When
filling the cooling system, open the drain cocks to
bleed the air from the system.

Check the radiator hoses and clamps after every 200
hours of operation. Tighten loose clamps. Replace
damaged hoses and clamps.

Location of drain cock on LPG machines.

GAS/LPG

M

LPG

Location of drain cock on gasoline machines.

DIESEL

GAS

Location of drain cock on diesel machines.

DIESEL

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S30 SERVICE INFORMATION

Check the radiator core exterior and hydraulic cooler
fins for debris after every 100 hours of operation.
Blow or rinse (with low pressure air or water) all dust
through the grille and radiator fins, in the opposite
direction of normal air flow. Be careful to not bend the
cooling fins when cleaning. Clean thoroughly to
prevent the fins from becoming encrusted with dust.
To avoid cracking the radiator, allow the radiator and
cooler fins to cool before cleaning.

AIR FILTER
Replace the primary air filter after every 400 hours of
operation.
NOTE: Clean the filter more often if machine is used
in extremely dusty conditions.

M
Replace the safety filter element after the primary has
been changed three times. Do not remove the safety
filter element from the housing unless it is restricting
air flow.

FUEL FILTER (Gasoline)
FOR SAFETY: When servicing machine, wear eye
and ear protection when using pressurized air or
water.

Replace the gasoline fuel filter after every 800 hours
of operation.
FOR SAFETY: When servicing machine, keep
flames and sparks away from fuel system service
area. Keep area well ventilated.

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S30 SERVICE INFORMATION

Maintenance & Repair

FUEL FILTER (LPG)

FUEL FILTER (Diesel)

NOTE: Close the LPG tank service valve and operate
the engine until it stops from lack of fuel before
working on the LPG fuel system.

Replace the fuel filter after every 800 hours of
operation.

Replace the LPG fuel filter after every 400 hours of
operation.

FOR SAFETY: When servicing machine, keep
flames and sparks away from fuel system service
area. Keep area well ventilated.

FOR SAFETY: When servicing machine, keep
flames and sparks away from fuel system service
area. Keep area well ventilated.

M
FUEL LINES (Diesel)

Disassemble the fuel lock off valve to access the LPG
fuel filter.

Check the fuel lines every 50 hours of operation. If
the clamp band is loose, apply oil to the screw of the
band and securely tighten the band.

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M

S30 SERVICE INFORMATION

The rubber fuel lines can become worn--out whether
the engine has been used much or not. Replace the
fuel lines and clamp bands every two years.
FOR SAFETY: When servicing machine, keep
flames and sparks away from fuel system service
area. Keep area well ventilated.

ENGINE BELT
Check the belt tension after every 50 hours of
operation. Adjust tension as necessary. Proper belt
tension is 13 mm (0.50 in) from a force of 4 to 5 kg (8
to 10 lb) applied at the mid-point of the longest span.

If the fuel lines and clamp bands are found worn or
damaged before two years’ time; replace or repair
them at once. Bleed the fuel system after
replacement of any fuel lines, see PRIMING THE
FUEL SYSTEM. When the fuel lines are not installed,
plug both ends with clean cloth or paper to prevent
dirt from entering the lines. Dirt in the lines can cause
fuel injection pump malfunction.
PRIMING THE FUEL SYSTEM (Diesel)
Typical diesel fuel systems require priming to remove
pockets of air from the fuel lines and fuel
components. This is usually required after running out
of fuel, changing fuel filter elements or repairing a fuel
system component. Air in the fuel prevents smooth
engine operation.
This fuel system however is self-priming. The return
line comes from the top of the injector that allows the
air to escape through the return line.
ELECTRONIC PRESSURE REGULATOR (LPG)
Remove the sensor and drain the oil from the LPG
electronic pressure regulator (EPR) after every 100
hours of operation.

WARNING: Moving belt and fan.
Keep away.

TIMING BELT (Gasoline/LPG)
Check the timing belt after every 800 hours of
operation.
Replace the timing belt after every 2000 hours of
operation.

FOR SAFETY: When servicing machine, keep
flames and sparks away from fuel system service
area. Keep area well ventilated.

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S30 SERVICE INFORMATION

Maintenance & Repair

SPARK PLUGS (Gasoline/LPG)
Clean or replace, and set the gap of the spark plugs
after every 400 hours of operation. The proper spark
plug gap is 1 mm (0.042 in).

FUSES AND RELAYS
RELAY PANEL FUSES AND RELAYS
Remove the relay panel cover to access fuses and
relays. Always replace a fuse with a fuse of the same
amperage. Extra 15 Amp fuses are provided inside
the relay panel drawer on the relay panel.

M
BATTERY
Clean and tighten the battery connections after the
first 50 hours of operation and after every 800 hours
after that. Do not remove the vent plugs from the
battery or add water to the battery.

Refer to the diagram below for locations of the fuses
and relays on the relay panel.

FOR SAFETY: When servicing machine, avoid
contact with battery acid.

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Maintenance & Repair

S30 SERVICE INFORMATION

Refer to the tables below for the fuses and circuits
protected.
S30

M

Refer to the tables below for the relays and circuits
controlled.
S30

Fuse

Rating

Circuit Protected

Relay

Rating

Circuit Controlled

FU1

15 A

FU2

15 A

Horn

M1

12 VDC, 40 A

Horn

Key Switch, Engine,
Instrumentation

M2

12 VDC, 40 A

Auxiliary 1

FU3

15 A

Turn Signals, 4--Way Flashers

M3

12 VDC, 40 A

Shaker

FU4

15 A

Extra Fused, Switched B+

M4

12 VDC, 40 A

Main Brush Valves, Side
Brush Valves

FU5

15 A

Main Brush Valves, Side Brush
Valves

M5

12 VDC, 40 A

Auxiliary 2

FU6

15 A

Hopper Valves

FU7

15 A

Lights, Backup Alarm

Relay

Rating

FU8

15 A

Extra Fused B+

M1

12 VDC, 40 A

Horn

FU9

15 A

Shaker, Vacuum Fan Valve

M2

12 VDC, 40 A

Auxiliary 1

FU10

15 A

Not Used

M3

12 VDC, 40 A

Shaker

FU11

60 A

Main Power Fuse, In Line, In Main
Harness

M4

12 VDC, 40 A

Not Used

M5

12 VDC, 40 A

Auxiliary 2

FU12

60 A

Cab Power (Optional)

FU13

40 A

Not Used

FU14

60 A

Not Used

ENGINE HARNESS FUSES AND RELAYS
(Gasoline/LPG)

Circuit Protected

The engine harness fuses and relays are located in
the fuse box inside the engine compartment. Refer to
the fuse box cover for locations of engine harness
fuses and relays.

S30XP and S30X4

S30XP and S30X4
Fuse

Rating

FU1

15 A

Horn

FU2

15 A

Key Switch, Engine,
Instrumentation

FU3

15 A

Turn Signals, 4--Way Flashers,
Shaker

FU4

15 A

Control Board

FU5

15 A

Main Brush Valves, Side Brush
Valves

FU6

15 A

Hopper Valves, Vacuum Fan
Valves

FU7

15 A

Lights, Backup Alarm

FU8

15 A

Extra Fused B+

FU9

15 A

Extra Switched, Fused B+

FU10

15 A

Not Used

FU11

60 A

Main Power Fuse, In Line, In Main
Harness

FU12

60 A

Cab Power (Optional)

FU13

40 A

Not Used

FU14

60 A

Not Used

Circuit Controlled

NOTE: Always replace a fuse with a fuse of the same
amperage.

NOTE: Always replace a fuse with a fuse of the same
amperage.

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Maintenance & Repair

ENGINE HARNESS RELAYS (Diesel)
The engine harness relays are located inside the
engine compartment.

M
Relay

Rating

Circuit Controlled

M9

12 VDC, 40 A

Starter Solenoid

M10

12 VDC, 40 A

Anti--Restart

M11

12 VDC, 40 A

Fuel Pump

M12

12 VDC, 40 A

Glow Plug

NOTE: Always replace a fuse with a fuse of the same
amperage.
CAB FUSES (CAB OPTION)
The cab fuses are located in the fuse box inside the
cab. Remove the fuse cover to access the fuses.

Refer to the table below for the fuses and circuits
controlled.
Fuse

Rating

Circuit Protected

FU1

5A

Lights

FU2

5A

Wiper

FU3

20 A

Air Conditioner

FU4

2A

Heat

NOTE: Always replace a fuse with a fuse of the same
amperage.
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S30 SERVICE INFORMATION
4. Remove the dust filter from the filter housing.

REMOVING AND INSPECTING THE DUST FILTER
Shake the dust filter at the end of every shift and
before removing the filter from the machine. Inspect
and clean the filter after every 100 hours of operation.
Replace damaged dust filters.
NOTE: Clean the filter more often if used in extremely
dusty conditions.
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, set parking brake,
and turn off machine.
1. Open the top cover and side shroud.

M

2. Disconnect the filter shaker wire from the
harness.

5. Clean or discard the dust filter element. Refer to
CLEANING THE DUST FILTER.
6. Insert the dust filter into the filter housing and
reinstall the removed parts. Be sure the seal is
installed as shown below.

3. Remove the filter shaker assembly from the filter
housing.
7. Close the side shroud and top cover.

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S30 SERVICE INFORMATION

Maintenance & Repair

CLEANING THE DUST FILTER

MAIN BRUSH

Use one of the following methods to clean the dust
filter:

Check the brush daily for wear or damage. Remove
any string or wire tangled on the main brush, main
brush drive hub, or main brush idler hub.

SHAKING--Press the filter shaker switch.
TAPPING--Tap the filter gently on a flat surface. Do
not damage the edges of the filter. The filter will not
seal properly if the edges of the filter are damaged.
AIR--Always wear eye protection when using
compressed air. Blow air through the center of the
filter and out toward the exterior. Never use more than
550 kPa (80 psi) of air pressure with a nozzle no
smaller than 3 mm (0.13 in) and never hold the nozzle
closer than 50 mm (2 in) to the filter.

M

FOR SAFETY: When servicing machine, wear eye
and ear protection when using pressurized air or
water.
Check the main brush pattern and rotate the brush
end-for-end after every 50 hours of operation, for
maximum brush life and best sweeping performance.
Refer to REPLACING OR ROTATING THE MAIN
BRUSH.
Replace the main brush when the remaining bristles
measure 25 mm (1.0 in) in length.

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Maintenance & Repair

S30 SERVICE INFORMATION

REPLACING OR ROTATING THE MAIN BRUSH
1. Raise the brush head.

4. Pull the main brush from the main brush
compartment.

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, set parking brake,
and turn off machine.
2. Open the right side main brush access door.

M

5. Replace or rotate the main brush end--for--end.
6. Slide the brush into the brush compartment and
all the way onto the drive plug.
7. Reinstall the brush idler plate.
3. Unlatch and remove the brush idler plate.

8. Close the right side main brush access door.
9. Check and adjust the brush pattern if needed.
Refer to CHECKING THE MAIN BRUSH
PATTERN.

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S30 SERVICE INFORMATION

Maintenance & Repair

CHECKING THE MAIN BRUSH PATTERN

ADJUSTING THE MAIN BRUSH TAPER

1. Apply chalk, or a similar marking material, to a
smooth and level section of the floor.
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.

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, set parking brake,
and turn off machine.
1. Loosen the shaft bearing bracket mounting bolts.

2. Lower the main brush onto the chalked area and
hold it there for 15 to 20 seconds without moving
the machine.
3. Raise the brush and drive the machine from the
chalked area. The brush pattern should be 50 to
65 mm (2.0 to 2.5 in) across the entire length of
the brush. Refer to ADJUSTING THE MAIN
BRUSH WIDTH.

M
2. Move the bracket up or down in the slots and
tighten the mounting bolts.
3. Check the main brush pattern and readjust as
necessary. Set the main brush adjustment knob
pointer to the same color band as the brush idler
plate.

00582

4. If the brush pattern is tapered, see ADJUSTING
THE MAIN BRUSH TAPER section of this
manual.

00601

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S30 SERVICE INFORMATION

ADJUSTING THE MAIN BRUSH WIDTH
FOR SAFETY: Before leaving or servicing
machine, stop on level surface, set parking brake,
and turn off machine.
1. Compare the length of the main brush bristles
with the color band on the brush idler plate.

SIDE BRUSH
Check the side brush daily for wear or damage.
Remove any tangled string or wire from the side
brush or side brush drive hub.
REPLACING THE SIDE BRUSH
Replace the side brush when it no longer cleans
effectively or when the remaining bristles are 64 mm
(2.5 in) or less in length. The side brush may be
changed sooner if sweeping light litter. The bristles
may be worn shorter if sweeping heavy debris.
1. Raise the side brush.

M

FOR SAFETY: Before leaving or servicing
machine, stop on level surface, set parking brake,
and turn off machine.
2. Remove the side brush retaining pin and then
remove the side brush.
2. Loosen the main brush adjustment knob and slide
the pointer so it matches the color band on the
brush idler plate. Retighten the knob.

NOTE: Remove the drive hub and put it on the new
brush if one is not installed.
3. Recheck the pattern. Readjust if necessary.

3. Slide the new side brush onto the side brush drive
shaft and reinstall the retaining pin.
4. Adjust the side brush pattern. Refer to
ADJUSTING THE SIDE BRUSH PATTERN.

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Maintenance & Repair

ADJUSTING THE SIDE BRUSH PATTERN
The side brush bristles should touch the floor between
10 o’clock and 4 o’clock when the brush is in motion.

ROTATING AND REPLACING THE SIDE BRUSH
GUARD
Rotate the side brush guard 90_ every 200 hours of
operation. Replace the brush guard after all four sides
have been used.

M

350327

S30: Turn the side brush adjustment knob
counterclockwise to increase the brush pattern and
clockwise to decrease the brush pattern.

S30XP and S30X4: Tighten the side brush
adjustment knob into the side brush bracket to
increase the brush pattern and loosen the knob to
decrease the brush pattern.

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Maintenance & Repair

S30 SERVICE INFORMATION
REAR SKIRT

SKIRTS AND FLAPS

NOTE: Be sure the rear tire is properly inflated before
checking skirt clearances.

HOPPER SKIRTS
Check the hopper skirts for wear or damage daily.
Replace the hopper skirts when they no longer touch
the floor.

The rear brush skirt should clear the floor by
3 to 6 mm (0.12 to 0.25 in). Check the skirt for wear
or damage and adjustment daily.

M
RECIRCULATION FLAP
BRUSH DOOR SKIRTS
NOTE: Be sure the rear tire is properly inflated before
checking skirt clearances.

The recirculation flap is self-adjusting. Check the flap
for wear or damage daily.

The brush door skirts should clear the floor by
3 to 6 mm (0.12 to 0.25 in). Check the skirts for wear
or damage and adjustment daily.

NOTE: The brush door skirts have slotted holes to
allow for a ground clearance adjustment. The door
must be closed for proper adjustment.

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Maintenance & Repair
HOPPER SEALS

SEALS

Check the hopper door seals for wear or damage
every 100 hours of operation.

BRUSH DOOR SEALS
Check the brush door seals for wear or damage every
100 hours of operation.

M
DUST FILTER SEALS
Check the dust filter seals for wear or damage every
100 hours of operation.

HOPPER INSPECTION DOOR SEALS
Check the hopper inspection door seal for wear or
damage every 100 hours of operation.

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Maintenance & Repair

S30 SERVICE INFORMATION

FILTER CHAMBER INLET SEAL

VACUUM WAND DOOR SEALS (OPTION)

Check the filter chamber inlet seal for wear or
damage every 100 hours of operation.

Check the vacuum wand door seal for wear or
damage every 100 hours of operation.
CYCLONIC PRE--FILTER SEALS
Check the cyclonic pre--filter seals for wear or
damage every 100 hours of operation.

M
DUST RETURN SEALS
Check the dust return seals for wear or damage every
100 hours of operation.

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S30 SERVICE INFORMATION

Maintenance & Repair

BRAKES AND TIRES

PROPELLING MOTOR

BRAKES

Torque the shaft nut to 508 Nm (375 ft lb) lubricated,
644 Nm (475 ft lb) dry, after every 800 hours of
operation.

Check the brake adjustment after every 200 hours of
operation.
PARKING BRAKE
Check the parking brake adjustment after every 200
hours of operation.
TIRES
The standard front tires are solid. The standard rear
tire is pneumatic.

M

Check the rear tire pressure every 100 hours of
operation. The proper air pressure is
790 + 35 kPa (115 + 5 psi).
REAR WHEEL
Torque the rear wheel nuts twice in the pattern shown
to 122 to 149 Nm (90 to 110 ft lb) after the first 50
hours of operation, and then after every 800 hours.
2

4

5

1
3

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S30 SERVICE INFORMATION
TRANSPORTING THE MACHINE

PUSHING, TOWING, AND TRANSPORTING THE
MACHINE

NOTE: Empty the hopper before transporting.

PUSHING OR TOWING THE MACHINE
If the machine becomes disabled, it can be pushed
from the front or rear, but only towed from the rear.
Use the bypass valve to prevent damaging the
hydraulic system when pushing or towing the
machine. This valve allows a disabled machine to be
moved for a very short distance and at a speed to not
exceed 1.6 kp/h (1 mph). The machine is NOT
intended to be pushed or towed a long distance or at
a high speed.

M

1. Raise the brushes. If necessary, slightly raise the
hopper for additional ramp clearance.

ATTENTION! Do not push or tow machine for a
long distance or damage may occur to the
propelling system.

2. Position the front of the machine at the loading
edge of the truck or trailer.
FOR SAFETY: When loading machine onto truck
or trailer, use winch. Do not drive the machine
onto the truck or trailer unless the loading
surface is horizontal AND is 380 mm (15 in) or
less from the ground.
3. If the loading surface is horizontal and 380 mm
(15 in) or less from the ground, drive the machine
onto the truck or trailer.

Turn the bypass valve located on the bottom of the
propelling pump 90_ (either direction) from the normal
position before pushing or towing the machine. Return
the bypass valve to the normal position when finished
pushing or towing the machine. Do Not use the
bypass valve during normal machine operation.

4. To winch the machine onto the truck or trailer,
attach the winching chains to the holes in the right
and left lower corners in front of the machine.

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S30 SERVICE INFORMATION
5. Position the machine as close to the front of the
trailer or truck as possible.
6. Set the parking brake and place a block behind
each wheel to prevent the machine from rolling.
7. Lower the brushes and hopper (if hopper was
raised).

Maintenance & Repair
9. Route the tie--downs to the opposite ends of the
machine and hook them to the brackets on the
floor of the trailer or truck. Tighten the tie--down
straps.
NOTE: It may be necessary to install tie-down
brackets to the floor of the trailer or truck.

8. Connect the tie--down straps to the holes in the
right and left lower corners in front of the machine
and the holes in the rear jacking brackets behind
the rear tires.

M
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.
10. If the loading surface is horizontal AND is 380
mm (15 in) or less from the ground, drive the
machine off the truck or trailer.

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Maintenance & Repair

S30 SERVICE INFORMATION

MACHINE JACKING

STORAGE INFORMATION

Empty the hopper before jacking up the machine.
Jack up the machine at the designated locations. Use
a hoist or jack capable of supporting the weight of the
machine. Use jack stands to support the machine.

The following steps should be taken prior to storing
the machine for extended periods.

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

M

1. Park the machine in a cool, dry area. Do not
expose the machine to rain or snow. Store
indoors.
2. Remove the battery, or charge battery every three
months.

FOR SAFETY: When servicing machine, block
machine tires before jacking machine up. Use a
hoist or jack that will support the weight of the
machine. Jack machine up at designated
locations only. Support machine with jack stands.
Rear jacking locations are located directly behind the
rear tire on each side of the machine.

Front jacking locations are located on the frame
directly in front of the front tire.

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Electrical Troubleshooting

ELECTRICAL
Troubleshooting Information

BEFORE CONDUCTING 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

DURING TESTS:
* Call Technical Services if Diagnostic Time Exceeds One Hour With
Unknown Cause or Course of Action

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.
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Electrical Troubleshooting

S30 SERVICE INFORMATION
Electrical Symbols & Abbreviations

WIRES
CONNECTED

BATTERY

WIRES NOT
CONNECTED

CHASSIS
GROUND

CONNECTION TO OR
FROM ANOTHER POINT

OPEN

ON-- OFF
SWITCH

DIODE

TEMPERATURE
SWITCH

PRESSURE
SWITCH

LED (LIGHT
EMITTING DIODE)

ENERGIZED
COMPONENT

HORN OR
ALARM

i

!

INFORMATION

WARNING

LIMIT
SWITCH

RELAY OR
SOLENOID
COIL

ASSEMBLY

PLUG-- IN
CONNECTION

FUSE

SENDING
UNIT

CLOSED

RELAY
CONTACTS

COMPONENT IN
POSITION OTHER
THAN NORMAL

MOTOR

SOLENOID
VALVE

ACTIVATED
COMPONENT

LAMP

MOVEMENT FROM
NORMAL POSITION

6/BLU
BATTERY
POSITIVE

E

BATTERY
NEGATIVE

NON-- ACTIVE
WIRE

WIRE NUMBER
& COLOR

ABBREVIATIONS
A

Amps

Wire Colors

ACT

Actuator

BLK

Black

B+

Battery Positive

BLU

Blue

CKT

Circuit

BRN

Brown

D

Diode

GRN

Green

F

Fuse

GRY

Gray

GND

Ground

ORA

Orange

LP

Lamp

PNK

Pink

M

Relay Coil

PUR

Purple

MTR

Motor

RED

Red

NC

Normally Closed

TAN

Tan

NO

Normally Open

WHT

White

PM

Permanent Magnet

YEL

Yellow

S or SW

Switch

SV

Solenoid Valve

TMR

Timer

VDC

Volts, Direct Current

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Electrical Troubleshooting

Fuses and Relays (S30,S30XP,S30X4)
(page 1 of 2)

RELAY PANEL FUSES AND RELAYS
Remove the relay panel cover to access fuses and
relays. Always replace a fuse with a fuse of the same
amperage. Extra 15 Amp fuses are provided inside
the relay panel drawer on the relay panel.

Refer to the diagram below for locations of the fuses
and relays on the relay panel.

Refer to the tables below for the fuses and circuits
protected.
S30
Fuse

Rating

Circuit Protected

FU1

15 A

Horn

FU2

15 A

Key Switch, Engine,
Instrumentation

FU3

15 A

Turn Signals, 4--Way Flashers

FU4

15 A

Extra Fused, Switched B+

FU5

15 A

Main Brush Valves, Side Brush
Valves

FU6

15 A

Hopper Valves

FU7

15 A

Lights, Backup Alarm

FU8

15 A

Extra Fused B+

FU9

15 A

Shaker, Vacuum Fan Valve

FU10

15 A

Not Used

FU11

60 A

Main Power Fuse, In Line, In Main
Harness

FU12

60 A

Cab Power (Optional)

FU13

40 A

Not Used

FU14

60 A

Not Used

E

S30 XP and X4
Fuse

Rating

FU1

15 A

Circuit Protected
Horn

FU2

15 A

Key Switch, Engine,
Instrumentation

FU3

15 A

Turn Signals, 4--Way Flashers,
Shaker

FU4

15 A

Control Board

FU5

15 A

Main Brush Valves, Side Brush
Valves

FU6

15 A

Hopper Valves, Vacuum Fan
Valves

FU7

15 A

Lights, Backup Alarm

FU8

15 A

Extra Fused B+

FU9

15 A

Extra Switched, Fused B+

FU10

15 A

Not Used

FU11

60 A

Main Power Fuse, In Line, In Main
Harness

FU12

60 A

Cab Power (Optional)

FU13

40 A

Not Used

FU14

60 A

Not Used

NOTE: Always replace a fuse with a fuse of the same
amperage.

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S30 SERVICE INFORMATION
Fuses and Relays (S30,S30XP,S30X4)
(page 2 of 2)

Refer to the tables below for the relays and circuits
controlled.
S30
Relay

Rating

M1

12 VDC, 40 A

Horn

M2

12 VDC, 40 A

Auxiliary 1

M3

12 VDC, 40 A

Shaker

M4

12 VDC, 40 A

Main Brush Valves, Side
Brush Valves

M5

12 VDC, 40 A

Auxiliary 2

CAB FUSES (CAB OPTION)
The cab fuses are located in the fuse box inside the
cab. Remove the fuse cover to access the fuses.

Circuit Controlled

S30 XP and X4

E

Relay

Rating

Circuit Controlled

M1

12 VDC, 40 A

Horn

M2

12 VDC, 40 A

Auxiliary 1

M3

12 VDC, 40 A

Shaker

M4

12 VDC, 40 A

Not Used

M5

12 VDC, 40 A

Auxiliary 2

Refer to the table below for the fuses and circuits
controlled.

ENGINE HARNESS FUSES AND RELAYS
The engine harness fuses and relays are located in
the fuse box inside the engine compartment. Refer to
the fuse box cover for locations of engine harness
fuses and relays.

Fuse

Rating

Circuit Protected

FU1

5A

Lights

FU2

5A

Wiper

FU3

20 A

Air Conditioner

FU4

2A

Heat

NOTE: Always replace a fuse with a fuse of the same
amperage.

NOTE: Always replace a fuse with a fuse of the same
amperage.

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Electrical Troubleshooting
S30 Electrical Schematic (1 of 4)

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Electrical Troubleshooting

S30 SERVICE INFORMATION
S30 Electrical Schematic (2 of 4)

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S30 SERVICE INFORMATION

Electrical Troubleshooting
S30 Electrical Schematic (3 of 4)

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Electrical Troubleshooting

S30 SERVICE INFORMATION
S30 Electrical Schematic (4 of 4)

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Electrical Troubleshooting

S30XP / S30X4 Electrical Schematic (1 of 4)

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S30 SERVICE INFORMATION
S30XP / S30X4 Electrical Schematic (2 of 4)

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S30 SERVICE INFORMATION

Electrical Troubleshooting

S30XP / S30X4 Electrical Schematic (3 of 4)

E

1029279-- 354729

49

S30 9004086 (4--08)

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S30 SERVICE INFORMATION
S30XP / S30X4 Electrical Schematic (4 of 4)

E

1029279-- 354729

50

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting

Gasoline Engine Harness Electrical Schematic (1 of 2)

E

384997 -- 354495

51

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Gasoline Engine Harness Electrical Schematic (2 of 2)

E

384997 -- 354496

52

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting

LPG Engine Harness Electrical Schematic (1 of 2)

E

384990 -- 354497

53

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

LPG Engine Harness Electrical Schematic (2 of 2)

E

384990 -- 354498

54

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting

Diesel Engine Harness Electrical Schematic

E

1029278-- 354728

55

S30 9004086 (4--08)

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S30 SERVICE INFORMATION
Cab Harness Electrical Schematic

E

1029278-- 354728

56

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting
S30 Wire Harness Drawing (1 of 2)

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57

S30 9004086 (4--08)

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S30 SERVICE INFORMATION
S30 Wire Harness Drawing (2 of 2)

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S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting

S30XP / S30X4 Wire Harness Drawing (1 of 3)

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59

S30 9004086 (4--08)

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S30 SERVICE INFORMATION
S30XP / S30X4 Wire Harness Drawing (2 of 3)

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60

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting

S30XP / S30X4 Wire Harness Drawing (3 of 3)

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61

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

All Machines Hopper Cover Wire Harness Drawing

E

62

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting

All Machines Hopper Wire Harness Drawing

E

63

S30 9004086 (4--08)

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Electrical Troubleshooting

S30 SERVICE INFORMATION
Diesel Engine Wire Harness Drawing

E

64

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Cab Wire Harness Drawing

1

E

354761

65

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S30 SERVICE INFORMATION
Key Switch Information (S30,S30XP,S30X4)

A

A

B

C

C

D

D
OFF

OFF

OFF Position

RUN

RUN

GLOW

GLOW

KEY
SWITCH

KEY
SWITCH

START

E

KEY
SWITCH

B

START

OFF

OFF

Glow Plug Position

RUN Position

PLUG

PLUG

A

B

RUN

RUN

GLOW

GLOW

PLUG

PLUG
KEY
SWITCH

START

START Position

START
A

B

C

C

D

D

(Diesel Only)
Spring loaded--Returns to RUN unless held

Spring loaded--Returns to RUN unless held

Key Switch pin terminal

A
Key Switch
position

OFF
RUN
Glow Plug
START
“

i

B
C
D
No Connections

“ Indicates a common connection

Common connections in various switch positions should be less than 1 :

66

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Key OFF Power Distribution (S30)
12 VDC

RED Battery Cable

BLK Battery Cable

13/BLK

STARTER MOTOR
MTR2

RED Battery Cable

Engine Block

ALTERNATOR

+ --

1/RED

Engine Block

B A

1/RED

GAS/LP--To engine harness RED (B+)
DIESEL--No connection
GAS/LP--To engine harness PUR (excite)
DIESEL--15/GRN to engine harness

F11
60A
(Inline)
F1

M1

15A

LS1

2/BRN

51/PNK

4/YEL

13/BLK
HORN

HORN RELAY

F3

15A

2/BRN

TO SIGNAL FLASHER

31/PNK

F8

D6

15A

2/BRN

EXTRA UNSWITCHED B+

85/GRN

F10

25A

2/BRN

TO M9 START RELAY
(DIESEL ONLY)

75/GRN
M5

F7

15A

5/GRN

2/BRN
AUX 2 RELAY

F9

15A

19/WHT

E

TO LIGHTING CIRCUITS

38/GRY

TO M3 SHAKER RELAY

86/BLU

M2

F6
2/BRN

19/WHT

15A
36/BLU

19/WHT

AUX 1 RELAY

F5

F2
15A

F4

15A
TO SV1 & SV3

39/WHT

19/WHT

15A
20/TAN

19/WHT

TO M4 MAIN BRUSH RELAY,
ENABLE VALVE TIMER (TMR1),
SV4, SV5, SV6A, SV6B
LCD DISPLAY PANEL

EXTRA
SWITCHED B+

6/BLU

P1-- 7

6/BLU

13/BLK

P1-- 5
9/WHT
S9
KEY SWITCH
A

B

6/BLU

C

D

9/WHT

9/WHT

KEY SWITCH
INPUT

M1
HORN RELAY

7/PUR

START

8/GRY

GLOW
PLUGS

OFF

9/WHT

P2-- 2

10/TAN

SW19
HORN SWITCH

M2

13/BLK

13/BLK

AUX 1 RELAY

TO INDICATOR LAMPS: CHECK ENGINE
(LP9), STALLED BROOM (LP10), CLOGGED
HYD. FILTER (LP11), HOT HYD. OIL (LP12)

9/WHT

9/WHT

M5

13/BLK

AUX 2 RELAY

TO ENGINE SPEED SWITCH (SW6),
ALTERNATOR RESISTOR (R1), CAB
CONTACTOR (C1), & SEAT SWITCH

9/WHT

9/WHT

TO VACUUM FAN & SHAKER SWITCH (SW18),
SHAKER RELAY (M3), SHAKER TIMER (TMR3)

67

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S30 SERVICE INFORMATION
Key OFF Power Distribution (S30XP,S30X4)
12 VDC

RED Battery Cable

BLK Battery Cable

13/BLK

STARTER MOTOR
MTR2

RED Battery Cable

Engine Block

ALTERNATOR

+ --

1/RED

Engine Block

B A

1/RED

GAS/LP--To engine harness RED (B+)
DIESEL--No connection
GAS/LP--To engine harness PUR (excite)
DIESEL--15/GRN to engine harness

F11
60A
(Inline)
F1

M1

15A

LS1

2/BRN

51/PNK

4/YEL

13/BLK
HORN

HORN RELAY

F3

15A

2/BRN

TO M3 SHAKER RELAY
& SIGNAL FLASHER

31/PNK

F8

D6

15A

2/BRN

EXTRA UNSWITCHED B+

23/ORA

F10

25A

2/BRN

TO M9 START RELAY
(DIESEL ONLY)

75/GRN
M5

E

F9
25/GRN

2/BRN

15A

25/GRN

AUX 2 RELAY

F7

EXTRA SWITCHED B+

24/YEL

15A

25/GRN

TO LIGHTING CIRCUITS

38/GRY

M2

F6
2/BRN

19/WHT

15A
33/ORA

19/WHT

AUX 1 RELAY

F5

F2
15A

F4

15A
39/WHT

19/WHT

TO M3 SHAKER RELAY, M6 ENGINE SHUTDOWN RELAY, SV2, SV5, SV6A, SV6B
CONTROL BOARD

TO SV1, SV3,
SV4, SV7, SV8

P1-- 22

13/BLK

15A
20/TAN

19/WHT

20/TAN

P1-- 2

P1-- 33

13/BLK

20/TAN

P1-- 3

P1-- 34

13/BLK

P1-- 32

P1-- 35

13/BLK

6/BLU

6/BLU

P1-- 1
S9
KEY SWITCH
A

B

6/BLU

M1

9/WHT

9/WHT

HORN RELAY

C

D

7/PUR

START

8/GRY

GLOW
PLUGS

OFF

9/WHT

10/TAN

S19
HORN SWITCH

M2

13/BLK

13/BLK

AUX 1 RELAY

TO INDICATOR LAMPS: CHECK ENGINE
(LP9), STALLED BROOM (LP10), CLOGGED
HYD. FILTER (LP11), HOT HYD. OIL (LP12),
PARKING BRAKE (LP18)

TO ALTERNATOR RESISTOR (R1), CAB
CONTACTOR (C1), & M6 ENGINE SHUTDOWN RELAY

9/WHT

9/WHT

M5

13/BLK

AUX 2 RELAY

9/WHT

68

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Key ON Power Distribution (S30)
12 VDC

RED Battery Cable

BLK Battery Cable

13/BLK

STARTER MOTOR
MTR2

RED Battery Cable

Engine Block

ALTERNATOR

+ --

1/RED

Engine Block

B A

1/RED

GAS/LP--To engine harness RED (B+)
DIESEL--No connection
GAS/LP--To engine harness PUR (excite)
DIESEL--15/GRN to engine harness

F11
60A
(Inline)
F1

M1

15A

LS1

2/BRN

51/PNK

4/YEL

13/BLK
HORN

HORN RELAY

F3

15A

2/BRN

TO SIGNAL FLASHER

31/PNK

F8

D6

15A

2/BRN

EXTRA UNSWITCHED B+

85/GRN

F10

25A

2/BRN

TO M9 START RELAY
(DIESEL ONLY)

75/GRN
M5

F7

15A

5/GRN

2/BRN
AUX 2 RELAY

F9

15A

19/WHT

E

TO LIGHTING CIRCUITS

38/GRY

TO M3 SHAKER RELAY

86/BLU

M2

F6
2/BRN

19/WHT

15A
36/BLU

19/WHT

AUX 1 RELAY

F5

F2
15A

F4

15A
TO SV1 & SV3

39/WHT

19/WHT

15A
20/TAN

19/WHT

TO M4 MAIN BRUSH RELAY,
ENABLE VALVE TIMER (TMR1),
SV4, SV5, SV6A, SV6B
LCD DISPLAY PANEL

EXTRA
SWITCHED B+

6/BLU

P1-- 7

6/BLU
KEY SWITCH
9/WHT

S9
KEY SWITCH
A

B

6/BLU

C

D

9/WHT

9/WHT

INPUT

M1
HORN RELAY

7/PUR

START

8/GRY

GLOW
PLUGS

RUN

9/WHT

13/BLK

P1-- 5
P2-- 2

10/TAN

SW19
HORN SWITCH

M2

13/BLK

13/BLK

AUX 1 RELAY

TO INDICATOR LAMPS: CHECK ENGINE
(LP9), STALLED BROOM (LP10), CLOGGED
HYD. FILTER (LP11), HOT HYD. OIL (LP12)

9/WHT

9/WHT

M5

13/BLK

AUX 2 RELAY

TO ENGINE SPEED SWITCH (SW6),
ALTERNATOR RESISTOR (R1), CAB
CONTACTOR (C1), & SEAT SWITCH

9/WHT

9/WHT

TO VACUUM FAN & SHAKER SWITCH (SW18),
SHAKER RELAY (M3), SHAKER TIMER (TMR3)

69

S30 9004086 (4--08)

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Electrical Troubleshooting

S30 SERVICE INFORMATION
Key ON Power Distribution (S30XP,S30X4)
12 VDC

RED Battery Cable

BLK Battery Cable

13/BLK

STARTER MOTOR
MTR2

RED Battery Cable

Engine Block

ALTERNATOR

+ --

1/RED

Engine Block

B A

1/RED

GAS/LP--To engine harness RED (B+)
DIESEL--No connection

TO M3 SHAKER RELAY,
SV2, SV5, SV6A, SV6B

GAS/LP--To engine harness PUR (excite)
DIESEL--15/GRN to engine harness

F11
60A
(Inline)
F1

M1

15A

LS1

2/BRN

51/PNK

4/YEL

13/BLK
HORN

HORN RELAY

F3

15A

2/BRN

TO M3 SHAKER RELAY
& SIGNAL FLASHER

31/PNK

F8

D6

15A

2/BRN

EXTRA UNSWITCHED B+

23/ORA

F10

25A

2/BRN

TO M9 START RELAY
(DIESEL ONLY)

75/GRN
M5

E

F9
25/GRN

2/BRN

15A

25/GRN

AUX 2 RELAY

F7

EXTRA SWITCHED B+

24/YEL

15A

25/GRN

TO LIGHTING CIRCUITS

38/GRY

M2

F6
2/BRN

19/WHT

15A

AUX 1 RELAY

F5

F2
15A

F4

15A
39/WHT

19/WHT

TO M3 SHAKER RELAY, M6 ENGINE SHUTDOWN RELAY, SV2, SV5, SV6A, SV6B

33/ORA

19/WHT

CONTROL

TO SV1, SV3,
SV4, SV7, SV8

20/TAN

13/BLK

P1-- 33

13/BLK

20/TAN

P1-- 2

20/TAN

P1-- 3

P1-- 34

13/BLK

P1-- 32

P1-- 35

13/BLK

6/BLU

6/BLU
S9
KEY SWITCH
A

P1-- 22

15A

19/WHT

P1-- 1
B

6/BLU

BOARD

M1

9/WHT

9/WHT

HORN RELAY

C

D

7/PUR

START

8/GRY

GLOW
PLUGS

RUN

9/WHT

10/TAN

S19
HORN SWITCH

M2

13/BLK

13/BLK

AUX 1 RELAY

TO INDICATOR LAMPS: CHECK ENGINE
(LP9), STALLED BROOM (LP10), CLOGGED
HYD. FILTER (LP11), HOT HYD. OIL (LP12),
PARKING BRAKE (LP18)

TO ALTERNATOR RESISTOR (R1), CAB
CONTACTOR (C1), & M6 ENGINE SHUTDOWN RELAY

9/WHT

9/WHT

M5

13/BLK

AUX 2 RELAY

9/WHT

70

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Main & Side Brushes ON (S30)

Conditions: Key ON (RUN), Main & Side Brushes Lowered. Hopper Down

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

LCD DISPLAY PANEL

P2-- 5

28/GRY

D7
SW14
M4

F5
19/WHT

13/BLK

SV1
39/WHT

39/WHT

52/BRN

42/BRN

15A

THERMO-SENTRY

MAIN BRUSH
RELAY

MAIN BRUSH
VALVE

D8
42/BRN

D11

SV3

SW7

39/WHT

41/PNK

SIDE BRUSH
VALVE

F6
19/WHT

13/BLK

SIDE BRUSH
LEVER SWITCH
(Brush Lowered)

SW5
36/BLU

15A

M4

36/BLU

MAIN BRUSH
LEVER SWITCH
(Brush Lowered)

49/WHT

i

E

SW16
68/GRY

49/WHT

MAIN
BRUSH
RELAY

36/BLU

TO VACUUM
FAN & SHAKER
SWITCH (SW18)

73/ORG

TO HOPPER DOOR
SWITCH (SW3)

13/BLK

HOPPER
POSITION
SWITCH
(Hopper
Lowered)
NOTE: Switch closes
only when in the fully
lowered position

TO HOPPER ENABLE VALVE (SV4),
HOPPER DOOR VALVE (SV5), HOPPER
RAISE/LOWER VALVES (SV6A,SV6B),
& ENABLE VALVE TIMER (TMR1)

Thermo-- Sentry switch (SW14) is shown in the normal
NON-- activated position (13/BLK connected to 52/BRN). The
switch is activated (13/BLK connected to 28/GRY) when the
Hopper air temperature exceeds 71_C (160_F). The Hopper
Fire indicator on the LCD panel will also illuminate when this
switch is activated. When the temperature falls below 60_C
(140_F), the switch will return to the NON-- activated position,
and the indicator light will turn OFF.

71

S30 9004086 (4--08)

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S30 SERVICE INFORMATION
Main & Side Brushes ON (S30XP,S30X4)

Conditions: Key ON (RUN), Sweep System Activated, Side Brush(es) Activated. Hopper Down

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

19/WHT
CONTROL BOARD

F5
15A
SV1
42/BRN

39/WHT

42/BRN

P1-- 5

MAIN BRUSH
ON VALVE
SW16

P1-- 27

SV8

13/BLK

42/BRN

39/WHT

HOPPER
POSITION
SWITCH
(Hopper
Lowered)
NOTE: Switch closes only when
in the fully lowered position

MAIN BRUSH
LOWER VALVE
SV4

E

44/YEL

P1-- 4

40/TAN

39/WHT
ENABLE
VALVE
SV3

41/PNK

39/WHT

41/PNK

P1-- 31

SIDE BRUSH
ON VALVE

X
P1-- 13

13/BLK

52/BRN

SV7

THERMO-SENTRY

41/PNK

39/WHT

S14

SIDE BRUSH
LOWER VALVE

i

Thermo-- Sentry switch (S14) is shown in the normal
NON-- activated position (13/BLK connected to 52/BRN). The
switch is activated (13/BLK connected to 28/GRY) when the
Hopper air temperature exceeds 71_C (160_F). The Hopper
Fire indicator on the control panel will also illuminate when
this switch is activated. When the temperature falls below
60_C (140_F), the switch will return to the NON-- activated
position, and the indicator light will turn OFF.

72

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Vacuum Fan ON (S30)

Conditions: Key ON (RUN), Main Brush Lowered. Hopper Down

SWITCHED B+
FROM AUX. 1
RELAY (M2)

SHAKER
RELAY

SWITCHED
B+ FROM
IGNITION
SWITCH

BATTERY
NEGATIVE

TMR3

M3

9/WHT

PIN 1
SHAKER
TIMER

9/WHT

PIN 3
13/BLK

PIN 2
SW18
2
9/WHT

1

9/WHT

33/ORG

4
6

5

73/ORG

UNUSED
UNUSED
72/BRN

TO LCD
DISPLAY
PIN P2--5

8
VACUUM FAN
& SHAKER
SWITCH
(Vac. Fan ON)

D8

M4
TO MAIN BRUSH
VALVE (SV1)

28/GRY

42/BRN

42/BRN

52/BRN

MAIN BRUSH
RELAY

D10

SW14
NO
COM
13/BLK

NC
THERMO-SENTRY
SWITCH

M3

F9

SV2
86/BLU

19/WHT

PIN 6

86/BLU

15A

VACUUM
FAN VALVE

SHAKER
RELAY

D1

MTR1

32/BRN

86/BLU

E

72/BRN

43/ORG

13/BLK

SHAKER
MOTOR

F6

SW5

19/WHT

36/BLU

36/BLU

15A

M4
MAIN
BRUSH
RELAY

MAIN BRUSH
LEVER SWITCH
(Brush Lowered)

49/WHT

36/BLU

i

SW16
13/BLK

68/GRY

49/WHT

TO HOPPER DOOR
SWITCH (SW3)

HOPPER
POSITION
SWITCH
(Hopper
Lowered)
NOTE: Switch closes
only when in the fully
lowered position

TO HOPPER ENABLE VALVE (SV4),
HOPPER DOOR VALVE (SV5), HOPPER
RAISE/LOWER VALVES (SV6A,SV6B),
& ENABLE VALVE TIMER (TMR1)

- The Thermo-- Sentry switch (SW14) is shown in the normal NON-- activated position
(13/BLK connected to 52/BRN). The switch is activated (13/BLK connected to 28/GRY)
when the Hopper air temperature exceeds 71_C (160_F). The Hopper Fire indicator on the
LCD panel will also illuminate when this switch is activated. When the temperature falls
below 60_C (140_F), the switch will return to the NON-- activated position, and the
indicator light will turn OFF.
- The Vacuum Fan & Shaker Switch (SW18) is a 3-- position switch. This drawing shows
the switch in the Vacuum Fan position, which will remain in this position until the
operator selects the OFF (center) position, or performs a Shaker cycle (momentary
position).

73

S30 9004086 (4--08)

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S30 SERVICE INFORMATION
Vacuum Fan ON (S30XP,S30X4)

Conditions: Key ON (RUN), Sweep System Activated, Vacuum System Activated. Hopper Down

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

19/WHT

CONTROL BOARD

F6
15A

S8

P1-- 14

30/TAN

13/BLK

CLOGGED DUST
FILTER SWITCH

SV2
36/BLU

33/ORA

P1-- 10

VACUUM
FAN VALVE

SW16

E

P1-- 27

33/ORA

M3

34/YEL

44/YEL

13/BLK

HOPPER
POSITION
SWITCH
(Hopper
Lowered)

P1-- 11

NOTE:
Switch
closes only
when in the
fully lowered
position

SHAKER RELAY
S14

X
P1-- 13

i

NO

COM
13/BLK

52/BRN
NC
THERMO-SENTRY
SWITCH

- Thermo-- Sentry switch (S14) is shown in the normal NON-- activated position (13/BLK
connected to 52/BRN). The switch is activated (13/BLK NOT connected to 52/BRN) when the
Hopper air temperature exceeds 71_C (160_F). The LCD screen on the control panel will also
show “F5: HOPPER FIRE” when this switch is activated, all sweeping functions will turn OFF
and the hopper door will close. When the temperature falls below 60_C (140_F), the switch will
return to the NON-- activated position.
- Clogged Dust Filter Switch (S8) is shown in the normal NON-- activated position (30/TAN NOT
connected to 13/BLK), and will close when the dust filter becomes clogged. The switch closes
when the negative pressure reaches 28 cm (11 in) of water lift (vacuum). The LCD screen on the
control panel will also show “F4: SHAKER FILTER” when this switch is closed.

74

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Filter Shaker ON (S30)
Conditions: Key ON (RUN), Hopper Down

SWITCHED B+
FROM AUX. 1
RELAY (M2)

SHAKER
RELAY

SWITCHED
B+ FROM
IGNITION
SWITCH

BATTERY
NEGATIVE

TMR3

M3

9/WHT

PIN 1
SHAKER
TIMER

9/WHT

PIN 3
13/BLK

PIN 2
SW18

1
33/ORG

2
9/WHT

9/WHT

73/ORG

4
5

6

UNUSED
UNUSED

72/BRN

8
VACUUM FAN
& SHAKER
SWITCH
(Shaker ON)

D8

PIN 6

TO LCD
DISPLAY
PIN P2--5

28/GRY

SW14

M4
TO MAIN BRUSH
VALVE (SV1)

13/BLK

42/BRN

42/BRN

52/BRN

MAIN BRUSH
RELAY
M3

F9

SV2
86/BLU

19/WHT

THERMO-SENTRY
SWITCH

D10

86/BLU

15A

D1

VACUUM
FAN VALVE

SHAKER
RELAY

MTR1

32/BRN

86/BLU

E

72/BRN

43/ORG

13/BLK

SHAKER
MOTOR

F6
19/WHT

SW5
36/BLU

36/BLU

15A

M4
MAIN
BRUSH
RELAY

MAIN BRUSH
LEVER SWITCH
(Brush Raised)

49/WHT

36/BLU

i

SW16
13/BLK

68/GRY

49/WHT

TO HOPPER DOOR
SWITCH (SW3)

HOPPER
POSITION
SWITCH
(Hopper
Lowered)
NOTE: Switch closes
only when in the fully
lowered position

TO HOPPER ENABLE VALVE (SV4),
HOPPER DOOR VALVE (SV5), HOPPER
RAISE/LOWER VALVES (SV6A,SV6B),
& ENABLE VALVE TIMER (TMR1)

- The Vacuum Fan & Shaker Switch (SW18) is a 3-- position switch. This drawing
shows the switch in the Shaker position, which must be held, and then released
(momentary switch) to initiate a Shaker cycle. When released, the switch will
return to the center OFF position.
- When B+ is momentarily applied to Pin 6 of the Shaker Timer (TMR3) , a 30
second Shaker cycle begins, applying Battery Negative to Pin 1 of TMR3.

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S30 SERVICE INFORMATION
Filter Shaker ON (S30XP,S30X4)
Conditions: Key ON (RUN), Shaker System Activated

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

19/WHT

CONTROL BOARD

F6
15A

S8

P1-- 14

13/BLK

30/TAN

CLOGGED DUST
FILTER SWITCH

SV2

P1-- 10

36/BLU

33/ORA
VACUUM
FAN VALVE

E

33/ORA

M3

P1-- 11

34/YEL

SHAKER RELAY
UNSWITCHED
B+ FROM
FUSE F11

2/BRN
D1

F3
15A
M3
32/BRN

31/PNK
SHAKER
RELAY

i

MTR1

13/BLK

SHAKER
MOTOR

- When activated, the Shaker System will run for 30 seconds. The Shaker System is automatically
activated when turning the sweeping system OFF, or can be activated anytime by pressing the Shaker
button. Pressing the Shaker button during sweeping will turn OFF the Vacuum Fan during the Shaker
cycle. The Shaker System is the only sweeping related function that can be activated with the Hopper
in the raised position.
- Clogged Dust Filter Switch (S8) is shown in the normal NON-- activated position (30/TAN NOT
connected to 13/BLK), and will close when the dust filter becomes clogged. The switch closes when
the negative pressure reaches 28 cm (11 in) of water lift (vacuum). The LCD screen on the control
panel will also show “F4: SHAKER FILTER” when this switch is closed.

76

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Hopper Lift (S30)
Conditions: Key ON (RUN), Hopper Door Closed

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

D15
40/TAN

F6
19/WHT

40/TAN

TMR1

SV4
36/BLU

36/BLU

PIN 5
ENABLE VALVE
TIMER
PIN 1

40/TAN

40/TAN

15A

ENABLE
VALVE
36/BLU

36/BLU

PIN 2

35/GRN

PIN 4

13/BLK

PIN 3

D12

5

SW3

SV5

13/BLK

13/BLK

6
35/GRN

36/BLU

35/GRN

8
49/WHT

HOPPER
DOOR OPEN
VALVE

UNUSED
UNUSED

1
2
4
HOPPER
DOOR SWITCH
(Automatic)

UNUSED
UNUSED

49/WHT

36/BLU

SW5

M4

49/WHT

MAIN BRUSH
RELAY

MAIN BRUSH
LEVER SWITCH
(Brush Raised)

D13

SV6A

1

36/BLU

37/PUR

HOPPER
LIFT VALVE

48/GRY
40/TAN
40/TAN

SV6B
48/GRY

HOPPER
LOWER
VALVE

i

13/BLK

HOPPER
POSITION
SWITCH
(Hopper Lifted)
NOTE: Switch closes
only when in the fully
lowered position

SW22
2

D14

36/BLU

E

SW16
68/GRY

49/WHT

13/BLK

4
5

6
13/BLK

13/BLK

8 HOPPER
LIFT/LOWER
SWITCH
(Hopper Lift)

40/TAN

40/TAN

- The Hopper Lift/Lower Switch (SW22) is a 3-- position switch. This drawing
shows the switch in the Hopper Lift position, which must be held (momentary
switch) while the Hopper is being lifted. When released, the switch will return to
the center OFF position, and the Hopper will remain in the current position.
- Enable Valve (SV4) must be energized when Lifting or Lowering the Hopper, or
when Opening or Closing the Hopper Door. To open the Hopper Door, the Enable
Valve (SV4) and the Hopper Door Open Valve (SV5) must be energized. To close
the Hopper Door, ONLY the Enable Valve (SV4) must be energized (SV5 is OFF).
- The Enable Valve Timer (TMR1) energizes the Enable Valve (SV4) for 6 seconds
when triggered. Triggering of TMR1 occurs when the Hopper Door Open Valve
(SV5) is turned ON or OFF, and is input on Pin 4 of TMR1.

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S30 SERVICE INFORMATION
Hopper Lift (S30XP,S30X4)
Conditions: Key ON (RUN)

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

19/WHT

CONTROL BOARD

F5

SV4
39/WHT

19/WHT

15A

40/TAN

P1-- 4

ENABLE
VALVE

F6
15A

P1-- 27
SV6A
33/ORA

37/PUR

P18
P1--31

48/GRY

P1-- 9

HOPPER
LIFT
VALVE

E

SW16
44/YEL

13/BLK

HOPPER
POSITION
SWITCH
(Hopper
Raised)
NOTE: Switch closes only when
in the fully lowered position

SV6B
33/ORA
HOPPER
LOWER
VALVE

i

- The Enable Valve (SV4) is ON ONLY during the following Hopper related functions:
1) Hopper Lift
2) Hopper Lower
3) Hopper Door Open
4) Hopper Door Close
- Lifting the Hopper or closing the Hopper Door turns OFF all sweeping related
functions when the One-- Step system is ON.

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Hopper Lower (S30)
Conditions: Key ON (RUN), Hopper Door Closed

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

D15
40/TAN

F6
19/WHT

40/TAN

TMR1

SV4
36/BLU

36/BLU

PIN 5
ENABLE VALVE
TIMER
PIN 1

40/TAN

40/TAN

15A

ENABLE
VALVE
36/BLU

36/BLU

PIN 2

35/GRN

PIN 4

13/BLK

PIN 3

D12

5

SW3

SV5

13/BLK

13/BLK

6
35/GRN

36/BLU

35/GRN

8
49/WHT

HOPPER
DOOR OPEN
VALVE

UNUSED
UNUSED

1
2
4
HOPPER
DOOR SWITCH
(Automatic)

UNUSED
UNUSED

49/WHT

36/BLU

SW5

M4

49/WHT

MAIN BRUSH
RELAY

MAIN BRUSH
LEVER SWITCH
(Brush Raised)

D13

SV6A

1

36/BLU

37/PUR

SW22
13/BLK

48/GRY
40/TAN
40/TAN

SV6B
48/GRY

HOPPER
LOWER
VALVE

i

HOPPER
POSITION
SWITCH
(Hopper Lifted)
NOTE: Switch closes
only when in the fully
lowered position
2

5

D14

36/BLU

13/BLK

4

HOPPER
LIFT VALVE

E

SW16
68/GRY

49/WHT

6
13/BLK

13/BLK

8 HOPPER
LIFT/LOWER
SWITCH
(Hopper Lower)

40/TAN

40/TAN

- The Hopper Lift/Lower Switch (SW22) is a 3-- position switch. This drawing
shows the switch in the Hopper Lower position, which must be held (momentary
switch) while the Hopper is being lowered. When released, the switch will return to
the center OFF position, and the Hopper will remain in the current position.
- Enable Valve (SV4) must be energized when Lifting or Lowering the Hopper, or
when Opening or Closing the Hopper Door. To open the Hopper Door, the Enable
Valve (SV4) and the Hopper Door Open Valve (SV5) must be energized. To close
the Hopper Door, ONLY the Enable Valve (SV4) must be energized (SV5 is OFF).
- The Enable Valve Timer (TMR1) energizes the Enable Valve (SV4) for 6 seconds
when triggered. Triggering of TMR1 occurs when the Hopper Door Open Valve
(SV5) is turned ON or OFF, and is input on Pin 4 of TMR1.

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Electrical Troubleshooting

S30 SERVICE INFORMATION
Hopper Lower (S30XP,S30X4)
Conditions: Key ON (RUN)

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

19/WHT

CONTROL BOARD

F5

SV4
39/WHT

19/WHT

15A

40/TAN

P1-- 4

ENABLE
VALVE

F6
15A

P1-- 27
SV6A
33/ORA

37/PUR

P18
P1--31

48/GRY

P1-- 9

HOPPER
LIFT
VALVE

E

SW16
44/YEL

13/BLK

HOPPER
POSITION
SWITCH
(Hopper
Raised)
NOTE: Switch closes only when
in the fully lowered position

SV6B
33/ORA
HOPPER
LOWER
VALVE

i

- The Enable Valve (SV4) is ON ONLY during the following Hopper related functions:
1) Hopper Lift
2) Hopper Lower
3) Hopper Door Open
4) Hopper Door Close
- Lifting the Hopper or closing the Hopper Door turns OFF all sweeping related
functions when the One-- Step system is ON.

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S30 SERVICE INFORMATION

Electrical Troubleshooting

Hopper Door Open - Automatic (S30)
Conditions: Key ON (RUN), Main Brush Lowered, Hopper Down
SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

D15
40/TAN

F6

40/TAN

TMR1

SV4

19/WHT

36/BLU

36/BLU

ENABLE
VALVE

i

PIN 5
ENABLE VALVE
TIMER
PIN 1

40/TAN

40/TAN

15A

Six second battery
negative output
on Pin 5.

36/BLU

36/BLU

PIN 2

35/GRN

PIN 4

13/BLK

PIN 3

D12

5

SW3

SV5

13/BLK

13/BLK

6
35/GRN

36/BLU

35/GRN

8
49/WHT

HOPPER
DOOR OPEN
VALVE

UNUSED

1
2
4
HOPPER
DOOR SWITCH
(Automatic)

UNUSED
UNUSED

49/WHT

36/BLU

SW5

M4

49/WHT

MAIN BRUSH
RELAY

13/BLK

MAIN BRUSH
LEVER SWITCH
(Brush Lowered)

D13

HOPPER
POSITION
SWITCH
(Hopper
Lowered)

SW22
SV6A
37/PUR

2
13/BLK

4

HOPPER
LIFT VALVE

48/GRY
40/TAN

D14
40/TAN

SV6B
48/GRY

HOPPER
LOWER
VALVE

i

NOTE:
Switch
closes
only when
in the fully
lowered
position

1

36/BLU

36/BLU

E

SW16
68/GRY

49/WHT

5

6
13/BLK

13/BLK

8 HOPPER
LIFT/LOWER
SWITCH
(OFF)

40/TAN

40/TAN

- The Hopper Door Switch (SW3) is a 2-- position switch. This drawing shows the
switch in the Automatic Door position, which automatically opens the Hopper
Door when sweeping, and closes it when the sweeping function is turned OFF.
- Enable Valve (SV4) must be energized when Lifting or Lowering the Hopper, or
when Opening or Closing the Hopper Door. To open the Hopper Door, the Enable
Valve (SV4) and the Hopper Door Open Valve (SV5) must be energized. To close
the Hopper Door, ONLY the Enable Valve (SV4) must be energized (SV5 is OFF).
- The Enable Valve Timer (TMR1) energizes the Enable Valve (SV4) for 6 seconds
when triggered. Triggering of TMR1 occurs when the Hopper Door Open Valve
(SV5) is turned ON or OFF, and is input on Pin 4 of TMR1.

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S30 SERVICE INFORMATION
Hopper Door Open - Manual (S30)
Conditions: Key ON (RUN), Main Brush Lifted, Hopper Raised

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

D15
40/TAN

F6

40/TAN

TMR1

SV4

19/WHT

36/BLU

36/BLU

ENABLE
VALVE

i

PIN 5
ENABLE VALVE
TIMER
PIN 1

40/TAN

40/TAN

15A

Six second battery
negative output
on Pin 5.

36/BLU

36/BLU

PIN 2

35/GRN

PIN 4

13/BLK

PIN 3

D12

5

SW3

SV5

13/BLK

13/BLK

6
35/GRN

36/BLU

35/GRN

8
49/WHT

HOPPER
DOOR OPEN
VALVE

UNUSED

1
2
4
HOPPER
DOOR SWITCH
(Manual Open)

UNUSED
UNUSED

49/WHT

E

36/BLU

SW5

M4

49/WHT

SW16

MAIN BRUSH
RELAY

13/BLK

68/GRY

49/WHT

MAIN BRUSH
LEVER SWITCH
(Brush Raised)

D13

HOPPER
POSITION
SWITCH
(Hopper Lifted)

SW22
SV6A

1

36/BLU

37/PUR

2

48/GRY
40/TAN

D14
40/TAN

SV6B
36/BLU

48/GRY

HOPPER
LOWER
VALVE

i

13/BLK

4

HOPPER
LIFT VALVE

5

6
13/BLK

13/BLK

8 HOPPER
LIFT/LOWER
SWITCH
(OFF)

40/TAN

40/TAN

- The Hopper Door Switch (SW3) is a 2-- position switch. This drawing shows the
switch in the Manual Open position, which opens the Hopper Door regardless of
the Hopper position or sweeping function status (ON or OFF).
- Enable Valve (SV4) must be energized when Lifting or Lowering the Hopper, or
when Opening or Closing the Hopper Door. To open the Hopper Door, the Enable
Valve (SV4) and the Hopper Door Open Valve (SV5) must be energized. To close
the Hopper Door, ONLY the Enable Valve (SV4) must be energized (SV5 is OFF).
- The Enable Valve Timer (TMR1) energizes the Enable Valve (SV4) for 6 seconds
when triggered. Triggering of TMR1 occurs when the Hopper Door Open Valve
(SV5) is turned ON or OFF, and is input on Pin 4 of TMR1.

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Electrical Troubleshooting
Hopper Door Open (S30XP,S30X4)
Conditions: Key ON (RUN)

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

19/WHT

CONTROL BOARD

F5

SV4
39/WHT

19/WHT

15A

40/TAN

P1-- 4

ENABLE
VALVE

P1-- 27

F6
19/WHT

SV5
33/ORA

15A

i

35/GRN
HOPPER
DOOR OPEN
VALVE

P1-- 7

SW16
44/YEL

13/BLK

HOPPER
POSITION
SWITCH
(Hopper
Lowered)
NOTE: Switch closes only when
in the fully lowered position

E

- The Enable Valve (SV4) is ON ONLY during the following Hopper related functions:
1) Hopper Lift
2) Hopper Lower
3) Hopper Door Open
4) Hopper Door Close
- Lifting the Hopper or closing the Hopper Door turns OFF all sweeping related
functions when the One-- Step system is ON.
- Hopper Door automatically opens when activating the One-- Step sweeping system.

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S30 SERVICE INFORMATION
Hopper Door Close - Automatic (S30)
Conditions: Key ON (RUN), Main Brush Raised, Hopper Down

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

D15
40/TAN

F6

40/TAN

TMR1

SV4

19/WHT

36/BLU

36/BLU

ENABLE
VALVE

i

PIN 5
ENABLE VALVE
TIMER
PIN 1

40/TAN

40/TAN

15A

Six second battery
negative output
on Pin 5.

36/BLU

36/BLU

PIN 2

35/GRN

PIN 4

13/BLK

PIN 3

D12

5

SW3

SV5

13/BLK

13/BLK

6
35/GRN

36/BLU

35/GRN

8
49/WHT

HOPPER
DOOR OPEN
VALVE

UNUSED

1
2
4
HOPPER
DOOR SWITCH
(Automatic)

UNUSED
UNUSED

49/WHT

E

36/BLU

SW16

SW5

M4

49/WHT

MAIN BRUSH
RELAY

13/BLK

68/GRY

49/WHT

MAIN BRUSH
LEVER SWITCH
(Brush Raised)

HOPPER
POSITION
SWITCH
(Hopper
Lowered)

D13
SW22
SV6A

1

36/BLU

37/PUR

2

48/GRY
40/TAN

D14
40/TAN

SV6B
36/BLU

48/GRY

HOPPER
LOWER
VALVE

i

13/BLK

4

HOPPER
LIFT VALVE

5

6
13/BLK

13/BLK

8 HOPPER
LIFT/LOWER
SWITCH
(OFF)

40/TAN

40/TAN

- The Hopper Door Switch (SW3) is a 2-- position switch. This drawing shows the
switch in the Automatic Door position, which automatically opens the Hopper
Door when sweeping, and closes it when the sweeping function is turned OFF.
- Enable Valve (SV4) must be energized when Lifting or Lowering the Hopper, or
when Opening or Closing the Hopper Door. To open the Hopper Door, the Enable
Valve (SV4) and the Hopper Door Open Valve (SV5) must be energized. To close
the Hopper Door, ONLY the Enable Valve (SV4) must be energized (SV5 is OFF).
- The Enable Valve Timer (TMR1) energizes the Enable Valve (SV4) for 6 seconds
when triggered. Triggering of TMR1 occurs when the Hopper Door Open Valve
(SV5) is turned ON or OFF, and is input on Pin 4 of TMR1.

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Electrical Troubleshooting
Hopper Door Close (S30XP,S30X4)
Conditions: Key ON (RUN)

SWITCHED B+
FROM AUX. 1
RELAY (M2)

BATTERY
NEGATIVE

19/WHT

CONTROL BOARD

F5

SV4
39/WHT

19/WHT

15A

40/TAN

P1-- 4

ENABLE
VALVE

P1-- 27

F6
19/WHT

SV5
33/ORA

15A

i

35/GRN
HOPPER
DOOR OPEN
VALVE

P1-- 7

SW16
44/YEL

13/BLK

HOPPER
POSITION
SWITCH
(Hopper
Lowered)
NOTE: Switch closes only when
in the fully lowered position

E

- The Enable Valve (SV4) is ON ONLY during the following Hopper related functions:
1) Hopper Lift
2) Hopper Lower
3) Hopper Door Open
4) Hopper Door Close
- Lifting the Hopper or closing the Hopper Door turns OFF all sweeping related
functions when the One-- Step system is ON.
- Hopper Door automatically closes when deactivating the One-- Step sweeping
system.

85

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S30 SERVICE INFORMATION
Display Module Fault Indicators (S30)

The fault indicator lights illuminate when a fault has
occurred. Stop the machine immediately and correct
the problem if these indicators come on.
Refer to the table below to determine the cause and
remedy for the fault.
2

3

1

4

8

5

7

6

Fault Indicators
1: Water Temperature (Red)

E

Cause(s)
Remedy
Engine coolant is too hot to safely Shut off machine.
operate the machine
Contact TENNANT service
representative.
2: Charging System (Amber)
Alternator is not charging the
Shut off machine.
battery.
Contact TENNANT service
representative.
3: Maintenance (Amber)
Not Used
Not Used
4: Fuel Level (Red)
Fuel level is low.
Refuel / Change fuel tank
5: Engine Oil Pressure (Red)
Oil pressure is below the normal
Shut off machine.
operating pressure
Contact TENNANT service
representative.
6: Parking Brake (Amber)
Not Used
Not Used
7: Clogged Dust Filter (Amber) Dust filter is clogged
Activate the filter shaker.
8: Hopper Fire (Red)
Fire in the hopper
Shut off machine.
Extinguish fire.
If necessary, call emergency
personnel.

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S30 SERVICE INFORMATION

Electrical Troubleshooting
Fault Indicators (S30XP,S30X4)

This machine is equipped with two visual indicators, a
red indicator light and an LCD (liquid crystal display).

The LCD will display a fault code. If there is more
than one fault, each fault will alternately display.

The red indicator light will blink continuously indicating
that a fault has occurred.

All faults are also accompanied by an audible alarm to
alert the operator a fault has occurred.
Refer to the table below to determine the cause and
remedy for the fault.
Cause(s)
Fault Code
(Displayed in LCD)
F3: CLOGGED
Hydraulic filter is clogged
HYD FILTER

Result
--

F4: SHAKER
FILTER
F5: HOPPER FIRE

Hopper dust filter is
clogged
Fire in the hopper

--

F6: ALTERNATOR

Alternator not charging

F7: LOW OIL
PRESS
F8: HIGH ENG
TEMP

Engine oil pressure is low

Shuts down engine

Engine temperature is high

Shuts down engine

F9: HIGH HYD
TEMP

Hydraulic fluid temperature
is high

Cancels 1--Step sweep
functions

F10: LOW FUEL

Low fuel

F18: HOPPER UP

Hopper is up

F20: UP KEY ERR

Hopper up button failure

F21: DN KEY ERR

Hopper down button failure

Prevents all panel
operations

F22: OPN KEY
ERR

Hopper door open button
failure

Prevents all panel
operations

F23: CL KEY ERR

Hopper door close button
failure

Prevents all panel
operations

F24: SEAT
SWITCH (Option)

Operator not in the seat
while engine is running and
parking brake not engaged

Engine will shut off

Terminates sweeping
functions and closes
hopper door

-Terminates sweeping
functions-Prevents all panel
operations

Remedy
Shut off machine.
Contact TENNANT service
representative.
Activate filter shaker to
unclog hopper dust filter.
Shut off machine.
Extinguish fire.
If necessary, call
emergency personnel.
Contact TENNANT service
representative.
Contact TENNANT service
representative.
Shut off machine.
Contact TENNANT service
representative.
Shut off machine.
Contact TENNANT service
representative.
Fill fuel tank (gasoline).
Replace fuel tank (LPG).
Lower hopper completely.

E

Shut off machine.
Contact TENNANT service
representative.
Shut off machine.
Contact TENNANT service
representative.
Shut off machine.
Contact TENNANT service
representative.
Shut off machine.
Contact TENNANT service
representative.
Engage parking brake
before leaving the machine.

87

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S30 SERVICE INFORMATION
Dash Fault Indicators (S30,S30XP,S30X4)

The dash fault indicators illuminate when a fault has
occurred. Stop the machine immediately and correct
the problem if these indicators come on.
Refer to the table below to determine the cause and
remedy for the fault.

1

4

2

5

6

3

E

Warning Light
1: Stalled Brush

Cause(s)
One of the brushes is stalled

2: Hydraulic Filter

Hydraulic filter is clogged

3: Hydraulic Temperature

Hydraulic system is too hot to
safely operate the machine

4: Hazard Flasher
5: Glow Plug -- Preheat
(Diesel machines only)
6: Check Engine

Not Used
Not Used
Engine control system detects a
fault during machine operation

88

Remedy
Shut off machine and remove
obstructions preventing brushes
from operating
Shut off machine.
Contact TENNANT service
representative
Shut off machine.
Contact TENNANT service
representative
Not Used
Not Used
Shut off machine.
Contact TENNANT service
representative

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S30 SERVICE INFORMATION

Electrical Troubleshooting

Operating, Maintenance, & Diagnostic Modes (S30XP,S30X4)
(page 1 of 2)

In addition to normal operation, the S30XP/S30X4 has five modes that can be accessed. The five modes are:
1) Input Display Mode
2) Manual Mode
3) Reset Hourmeter
4) LED Brightness Adjustment Mode
5) Self Test / Display Error Mode
During normal operation, the control panel will show the following items after turning the key switch ON:
1) The first 8 segments on the LCD display turn ON and the control panel LED’s illuminate briefly
2) The software revision date for 1 to 2 seconds
3) Fuel level and hourmeter
4) Condition and Fault messages when sensed

INPUT DISPLAY MODE
This mode allows the technician to observe if the inputs to the control board are operating as intended. Use
this mode to test or troubleshoot the input switches, wiring, and circuit board logic. Refer to the chart after the
following instructions for LED / Input associations.
To enter Input Display Mode:
1) Hold the “Side Brush” and the “4/5” panel buttons while turning ON the key switch. The key switch
must be in the RUN position, but the engine does not have to be started.
2) Release buttons after 5 seconds. Confirm that the LCD display reads “CONFIG MODE”.
3) Use the “2/3” button to scroll through the various modes until “INPUT MODE” is displayed.
4) Press the “0/1” button to select the mode. Confirm that the LCD display reads “INPUT MODE OPR”.
5) Perform necessary tests.
6) Exit Input Display Mode by turning the key switch OFF.
Panel LED

LED ON Condition

LED OFF Condition

Pin #

Hopper UP LED
Vacuum Fan LED
Hopper DOWN LED
Side Brush LED
Filter Shaker LED
Hopper Door Closed LED
Hopper Door Open LED
One--Step Sweep LED

NO hopper fire
Low oil pressure
Hopper fully lowered
High engine temperature
Sweep filter OK
Not used
Alternator NOT charging
Not used

Hopper fire sensed
Oil pressure OK
Hopper raised
Engine temperature OK
Sweep filter clogged
Not used
Alternator charging OK
Not used

P1--13
P1--25
P1--27
P1--23
P1--14
x
P1--16
x

MANUAL MODE
This mode allows the technician to turn ON various machine functions regardless of the status of the sensed
inputs or interlocks. For example, the main brush can be turned ON with the hopper raised.
To enter Manual Mode:
1) Hold the “Side Brush” and the “4/5” panel buttons while turning ON the key switch. The key switch
must be in the RUN position, but the engine does not have to be started.
2) Release buttons after 5 seconds. Confirm that the LCD display reads “CONFIG MODE”.
3) Use the “2/3” button to scroll through the various modes until “MANUAL MODE” is displayed.
4) Press the “0/1” button to select the mode. Confirm that the LCD display reads “MANUAL MODE
OPR”.
5) Perform any necessary tests or repairs.
6) Exit Manual Mode by turning the key switch OFF.
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Electrical Troubleshooting

S30 SERVICE INFORMATION

Operating, Maintenance, & Diagnostic Modes (S30XP,S30X4)
(page 2 of 2)

RESET HOURMETER MODE
Contact the Tennant Warranty Department if the hourmeter needs to be reset. The Warranty Department will
determine if it is appropriate to reset the hourmeter, and will provide the steps needed to perform this function.
The Tennant Warranty Department can be contacted by calling 1--800--553--8033.

LED BRIGHTNESS ADJUSTMENT MODE
This mode allows the technician to adjust the brightness of the LED’s on the control panel.
To enter LED Brightness Adjustment Mode:
1) Hold the “Side Brush” and the “4/5” panel buttons while turning ON the key switch. The key switch
must be in the RUN position, but the engine does not have to be started.
2) Release buttons after 5 seconds. Confirm that the LCD display reads “CONFIG MODE”.
3) Use the “2/3” button to scroll through the various modes until “LED BRIGHTNESS” is displayed.
4) Press the “0/1” button to select the mode.
5) Press & hold the “8/9” button to slowly increase the control panel LED brightness. Release the button
to set the brightness level. To reduce the brightness, press & hold the “8/9” button again until the
desired brightness level is attained, then release button.
6) Exit LED Brightness Adjustment Mode by turning the key switch OFF.

E

SELF TEST / DISPLAY ERROR MODE
This mode allows the technician to determine the status of the electrical load on each output from the control
board. The self test takes less than one second to perform. If the control board passes the test, “OK” will be
displayed. If the panel fails the test, the pin number of the failing output(s) will be displayed. If “OPEN LOAD”
is displayed after the pin number, the self test found the output from that pin electrically open. If “SHORT
LOAD” is displayed after the pin number, the self test found the output from that pin electrically shorted to
battery positive (B+). Repair the output wires or replace the component as needed.
NOTE: P1--15 will always result in an “OPEN LOAD” error unless the Clogged Hydraulic Filter Switch (S4) is
shorted across the terminals to test the output, as this is a normally open switch. Also, P1--24 will also result
in an “OPEN LOAD” since this output is not currently being used.
To enter Self Test / Display Error Mode:
1) Hold the “Side Brush” and the “4/5” panel buttons while turning ON the key switch. The key switch
must be in the RUN position, but the engine does not have to be started.
2) Release buttons after 5 seconds. Confirm that the LCD display reads “CONFIG MODE”.
3) Use the “2/3” button to scroll through the various modes until “SELF TEST” is displayed.
4) Press the “0/1” button to select the mode.
5) Using the displayed information, perform any necessary tests or repairs.
6) Exit Self Test / Display Error Mode by turning the key switch OFF.

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Electrical Troubleshooting

Circuit Board Pin Functions (S30XP,S30X4)

Pin #
P1--1
P1--2
P1--3
P1--4
P1--5
P1--6
P1--7
P1--8
P1--9
P1--10
P1--11
P1--12
P1--13
P1--14
P1--15
P1--16
P1--17
P1--18
P1--19
P1--20
P1--21
P1--22
P1--23
P1--24
P1--25
P1--26
P1--27
P1--28
P1--29
P1--30
P1--31
P1--32
P1--33
P1--34
P1--35

Function
Chassis ground (static)
Power, battery positive
Power, battery positive
Output, SV4
Output, SV1 & SV8
Input, analog, S7
Output, SV5
Output, SV6A
Output, SV6B
Output, SV2
Output, M3
Not Used
Input, digital, S14
Input, digital, S8
Output, LP11
Input, digital, Alternator
Not Used
Not Used
Output, LP12
Output, Governor
Output, Governor
Ground, battery negative
Input, analog, S10
Not Used
Input, digital, S11
Input, digital, seat switch
Input, digital, SW16
Input, analog, S2 or S3
Input, digital, S1
Not Used
Output, SV3 & SV7
Memory storage
Ground, battery negative
Ground, battery negative
Ground, battery negative

Active Voltage
B-B+
B+
B-B-See NOTE 1
B-B-B-B-B-x
B-B-B-B-x
x
B-OPEN
OPEN
B-See NOTE 2
x
B-B-B-See NOTE 3
B-x
B-B+
B-B-B--

Inactive Voltage
B-B-B-B+
B+
See NOTE 1
B+
B+
B+
B+
B+
x
5 VDC
5 VDC
B+
5 VDC
x
x
B+
B+
B+
B-See NOTE 2
x
5 VDC
5 VDC
5 VDC
See NOTE 3
5 VDC
x
B+
B+
B-B-B--

E

NOTE 1 - Hydraulic Oil Temperature Sender (S7) specifications: High temperature indicated when oil is 107_C (225_F) or higher.
Temperature sender measures approximately 75 Ohms at 107_C (225_F). Resistance lessens as temperature increases.
NOTE 2 - Engine Temperature Sender (S10) specifications: High temperature indicated when coolant is 107_C (225_F) or higher.
Temperature sender measures approximately 75 Ohms at 107_C (225_F). Resistance lessens as temperature increases.
NOTE 3 - GASOLINE/DIESEL engines -- Fuel Sender (S2) specifications: Fuel sender measures approximately 90 Ohms with a full
fuel tank, and approximately 5 Ohms with an empty fuel tank.
LPG engines -- Fuel Switch (S3) specifications: Fuel switch is open above approximately 4.8 BAR (70 PSI), indicating
sufficient fuel, and measures approximately 0 Ohms below this pressure, indicating low fuel.

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S30 SERVICE INFORMATION

Hydraulic Troubleshooting

HYDRAULIC
Troubleshooting Information

BEFORE CONDUCTING TESTS:
* Read and Follow ALL Safety Warnings and Precautions as mentioned
at the beginning of this manual
* Engine & Hydraulic Oil Must Be At Normal Operating Temperatures
after Running Machine and Hydraulics a Minimum of 5 Minutes
* Examine Machine For Any Linkage Binding or Mechanical Problems

DURING TESTS:
* Call Technical Services if Diagnostic Time Exceeds One Hour With
Unknown Cause or Course of Action
* Maintain Normal Main Brush Pressure as Listed in Operator’s Manual

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.
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Hydraulic Troubleshooting

S30 SERVICE INFORMATION
General Information (S30, S30XP, S30X4)
Page 1 of 2

Commonly Used Hydraulic Symbols

LINES
CONNECTED

LINES NOT
CONNECTED

ASSEMBLY

CASE DRAIN
LINE

PUMP

MOTOR

QUICK CONNECT
TEST PORT

HIGH PRESSURE
OR FLOW LINE

ENERGIZED
COMPONENT

ACTIVATED
COMPONENT

SOLENOID
VALVE

RESTRICTOR
OR ORIFICE

RETURN OR LOW
PRESSURE LINE

MANUAL
VALVE

TANK OR
RESERVOIR

HYDRAULIC FLOW
OR MOVEMENT

CHECK
VALVE

RELIEF
VALVE

OIL COOLER
OR HEAT
EXCHANGER

ACTIVE PILOT
PORT LINE

FILTER OR
STRAINER

NON-- ACTIVE
PILOT PORT LINE

VARIABLE
OR PWM

CYLINDER OR RAM

PILOT PORT
CHECK VALVE

ROTATING
COMPONENT

SUCTION LINE

SPRING LOADED
CHECK VALVE

i

!

INFORMATION

WARNING

EXAMPLES
Energized
Solenoid
Valve

Non--energized
Solenoid Valve

H

Valve position for
indicated circuit

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Hydraulic Troubleshooting

General Information (S30, S30XP, S30X4)
Page 2 of 2

Hydraulic Pump Flow Rates (typical)
PROPEL PUMP
ACCESSORY PUMPS
6.4 cc
(0.39 ci)
per rev.

11.5 cc
(0.7 ci)
per rev.

11.5 cc
(0.7 ci)
per rev.

PUMP
4

PUMP
3

PUMP
2

ENGINE
S30,S30XP:
20.3 cc (1.24 ci)
per rev.
S30X4:
40.6 cc (2.48 ci)
per rev.

ENGINE

PUMP 1

Pump

Displacement

Volume @ 2000RPM

Volume @ 2400RPM

Pump 1 (S30, S30XP)
Pump 1 (S30X4)
Pump 2
Pump 3
Pump 4

20.3 cc (1.24 ci)
40.6 cc (2.46 ci)
11.5 cc (0.7 ci)
11.5 cc (0.7 ci)
6.4 cc (0.39 ci)

40.5 lpm (10.7 gpm)
81.0 lpm (21.4 gpm)
22.7 lpm (6.0 gpm)
22.7 lpm (6.0 gpm)
12.5 lpm (3.3 gpm)

48.4 lpm (12.8 gpm)
96.5 lpm (25.5 gpm)
27.2 lpm (7.2 gpm)
27.2 lpm (7.2 gpm)
15.1 lpm (4.0 gpm)

Commonly Used Abbreviations
AUX

Auxiliary

MFLD

Manifold

CC

Cubic Centimeters

MTR

Motor

CK

Check Valve

OR

Orifice

CM

Centimeters

PC

Pilot Port Check Valve

CU

Cubic

PMP

Pump

CV

Control Valve

PSI

Pounds Per Square Inch

CYL

Cylinder

DC

Direct Current

PWM

Pulse Width Modulation

DCn

Disconnect (Test Port)

RES

Reservoir

FLTR

Filter

RH

Right Hand

GPM

Gallons Per Minute

HTX

Heat Exchanger

RV

Relief Valve

Inches

SC

Spring Loaded Check Valve

IN

PSWITCH Pressure Switch

RPM

kPa

KiloPascals

LH

Left Hand

SV

Solenoid Valve

Liters Per Minute

SW

Switch

LPM
M

STRN

Motor (Combustion)

V

H

Revolutions Per Minute

Strainer

Volts

Hydraulic Manifold Port Markings
C

Cylinder Connection

G

Test Port

M

Motor Connection

P
PS
T

Pump Connection
Pressure Switch Connection
Tank Connection

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S30 SERVICE INFORMATION
Hydraulic Schematic (S30, S30XP)
(page 1 of 2)

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Hydraulic Troubleshooting
Hydraulic Schematic (S30, S30XP)
(page 2 of 2)

H

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S30 SERVICE INFORMATION
Hydraulic Schematic (S30X4)
(page 1 of 2)

H

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Hydraulic Troubleshooting
Hydraulic Schematic (S30X4)
(page 2 of 2)

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Side Brush
Motor

L
R

Valve

T Steering

Vac Fan
Motor

Hopper Lift
Cylinder

P

H
FRONT

Hopper
Dump Door
Cylinder

Main Brush
Motor

Cooler

C4

C5

C1

Control
Valve

T2

C2

Reservoir

M6

M1

M2

T1

M5

M3

P1

P2

M4

Aux
Pump

Cooling Fan
Motor

Steer
Cylinder

Wheel Drive
Motor

Propel
Pump

Hydraulic Troubleshooting
S30 SERVICE INFORMATION

Overall Hydraulic Hose Diagram (S30)

S30 9004086 (4--08)

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Side Brush
Motor

Side Brush
Lift Cylinder

Main Brush
Lift Cylinder

Vac Fan
Motor

L
P
R

Hopper
Lift Cylinder

Hopper
Dump Door
Cylinder

Valve

T Steering

FRONT

Main Brush
Motor

C7

C6

C9

Cooler

C8

C4

C5

C1

Control
Valve

T2

C2

Reservoir

M6

M1

M2

T1

M5

M3

P1

P2

M4

Aux
Pump

Cooling Fan
Motor

Steer
Cylinder

Wheel Drive
Motor

Propel
Pump

S30 SERVICE INFORMATION
Hydraulic Troubleshooting

Overall Hydraulic Hose Diagram (S30XP)

101

H

102

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P

Side Brush
Motor

R

Steering
Valve

Vac Fan
Motor

Main Brush
Lift Cylinder

LS

CF

Hopper
Lift Cylinder

LS T

P

Hopper
Dump Door
Cylinder

EF

Priority
Steering
Valve

Main Brush
Motor

H

Side Brush
Lift Cylinder

L
L

T

FRONT

C7

C6

C9

Cooler

C8

C4

C5

C1

Control
Valve

T2

C2

Reservoir

M6

M1

M2

T1

M5

M3

P1

P2

M4

Wheel Drive
Motor

Aux
Pump

Cooling Fan
Motor

Steer
Cylinder

Propel
Pump

Wheel Drive
Motor

Flow Divider
Valve

Hydraulic Troubleshooting
S30 SERVICE INFORMATION

Overall Hydraulic Hose Diagram (S30X4)

S30 9004086 (4--08)

S30 SERVICE INFORMATION

Hydraulic Troubleshooting

Hydraulic Reservoir Hose Diagram

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S30 SERVICE INFORMATION
Hydraulic Cooler Hose & Tube Diagram

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Hydraulic Troubleshooting

Hydraulic Pumps Diagram (S30, S30XP)

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S30 SERVICE INFORMATION
Hydraulic Pumps Diagram (S30X4)

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Hydraulic Troubleshooting

Hydraulic Valve Block Diagram (S30)

G1

M4

G2

C1
M2
PS

T1

M6

C3

C5

H

M3

M5

C4

P2

C2
P1
M1

T2

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S30 SERVICE INFORMATION

Hydraulic Valve Block Diagram (S30XP, S30X4)

G1

M4

G2

C1
M2
PS

T1

M6

C3

H

C7
C6

C8

M3

M5

C4
C5

P2

C2
P1

C9
M1

108

T2

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Hydraulic Troubleshooting

Hydraulic Priority and Flow Divider Valve Diagram (S30X4)

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S30 SERVICE INFORMATION

Left Hand Side Brush Hydraulic Diagram (S30XP, S30X4)

C7
C6

H

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Hydraulic Troubleshooting

Main Brush ON (S30, S30XP, S30X4)
Conditions: Engine Running, Main Brush Lowered, Hopper Down
MANIFOLD ASSEMBLY

T2

SV3

M2

MAIN
BRUSH
MOTOR

SV1

M1
MTR1
OR1
3.5 mm
(0.14 in)

PS

STALL SENSOR
(PRESSURE SWITCH)
165 BAR
(2400 psi)

SV4

i

RV1
172 BAR
(2500 psi)

G1

Vacuum Fan speeds (+/- 300 RPM):
Engine @ 2000 RPM: 4600 RPM
Engine @ 2400 RPM: 5500 RPM
TEST
PORT

P1

PUMP PUMP PUMP
3
2
4

PUMP
1

H

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

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S30 SERVICE INFORMATION

Main Brush & Side Brush(es) ON (S30, S30XP, S30X4)
Conditions: Engine Running, Sweep System Activated, Side Brush(es) Lowered, Hopper Down
MANIFOLD ASSEMBLY

T2

SV3
RIGHT SIDE
BRUSH MOTOR

LEFT SIDE
BRUSH MOTOR

MTR2

MTR3

M4

M2
MAIN
BRUSH
MOTOR

SV1

M1
OR1
3.5 mm
(0.14 in)

MTR1
PS

STALL SENSOR
(PRESSURE SWITCH)
165 BAR
(2400 psi)

SV4

RV1
172 BAR
(2500 psi)

G1

TEST
PORT

P1

H

PUMP PUMP PUMP
3
2
4

PUMP
1

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

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Hydraulic Troubleshooting

Hopper Door Open (S30, S30XP, S30X4)
Conditions: Engine Running, Hopper Door Switch in OPEN Position
MANIFOLD ASSEMBLY

T2

SV3

SV1

SV4
T1

SV5

OR1
3.5 mm
(0.14 in)

OR2
11.7 mm
(0.46 in)

C3

C2
PC1
6.9 BAR
(100 psi)

C1

OPEN
G1

RV1
172 BAR
(2500 psi)

i

P1

PUMP PUMP PUMP
3
2
4

TEST
PORT

PUMP
1

ENGINE

CYL1

HOPPER DOOR CYLINDER

- When Hopper Door Cylinder reaches the end of
travel, Relief Valve (RV1) will open to prevent
excessive pressure build-- up.
- S30 ONLY: The Enable Valve Timer (TMR1) energizes
the Enable Valve (SV4) for 6 seconds when triggered.
Triggering of TMR1 occurs when the Hopper Door Open
Valve (SV5) is turned ON or OFF, and is input on Pin 4 of
TMR1.

H

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

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S30 SERVICE INFORMATION
Hopper Door Close (S30, S30XP, S30X4)

Conditions: Engine Running, Main Brush Raised, Hopper Door Switch in CLOSE or AUTO Position
MANIFOLD ASSEMBLY

T2

SV3

SV1

SV4
T1
SV5
C3

OR1
3.5 mm
(0.14 in)

C2
PC1
6.9 BAR
(100 psi)

OR2
11.7 mm
(0.46 in)

C1
CYL1
CLOSE
G1

RV1
172 BAR
(2500 psi)

i

P1

H

PUMP PUMP PUMP
3
2
4

TEST
PORT

PUMP
1

ENGINE

HOPPER DOOR CYLINDER

- Surface area differential in hydraulic cylinder
causes Hopper Door Cylinder to extend
- When Hopper Door Cylinder reaches the end of
travel, Relief Valve (RV1) will open to prevent
excessive pressure build-- up.
- S30 ONLY: The Enable Valve Timer (TMR1) energizes
the Enable Valve (SV4) for 6 seconds when triggered.
Triggering of TMR1 occurs when the Hopper Door Open
Valve (SV5) is turned ON or OFF, and is input on Pin 4 of
TMR1.

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

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Hydraulic Troubleshooting
Hopper Lift (S30, S30XP, S30X4)

Conditions: Engine Running, Hopper Lift Switch in RAISE Position
MANIFOLD ASSEMBLY

T2

SV3

SV1

SV4
T1
SV6A

RV3
55 BAR
(800 psi)

C4
PC3
6.9 BAR
(100 psi)

OR1
3.5 mm
(0.14 in)

C5
SV6B

OR
11.9 mm
(0.47 in)

PC2
6.9 BAR
(100 psi)

CYL2
LIFT

G1

RV1
172 BAR
(2500 psi)

TEST
PORT

i

P1

PUMP PUMP PUMP
3
2
4

PUMP
1

HOPPER LIFT CYLINDER

- When Hopper Lift Cylinder reaches the end of travel
when Raising Hopper, Relief Valve (RV1) will open to
prevent excessive pressure build-- up.
- The Enable Valve (SV4) is turned ON whenever the
Hopper Lift Switch(SW22) is in the RAISE or LOWER
position.

ENGINE

H

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

115

S30 9004086 (4--08)

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Hydraulic Troubleshooting

S30 SERVICE INFORMATION
Hopper Lower (S30, S30XP, S30X4)

Conditions: Engine Running, Hopper Lift Switch in LOWER Position
MANIFOLD ASSEMBLY

T2

SV3

SV1

SV4
T1
RV3
55 BAR
(800 psi)
SV6A

C4
PC3
6.9 BAR
(100 psi)

OR1
3.5 mm
(0.14 in)

C5
OR
11.9 mm
(0.47 in)

PC2
6.9 BAR
(100 psi)

CYL2
LOWER

SV6B
G1

RV1
172 BAR
(2500 psi)

H

TEST
PORT

P1

PUMP PUMP PUMP
3
2
4

i
PUMP
1

HOPPER LIFT CYLINDER

- When Hopper Lift Cylinder reaches the end of travel
when Lowering Hopper, Relief Valve (RV3) will open to
prevent excessive pressure build-- up.
- The Enable Valve (SV4) is turned ON whenever the
Hopper Lift Switch(SW22) is in the RAISE or LOWER
position.

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

116

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Hydraulic Troubleshooting

Vacuum Fan ON (S30, S30XP, S30X4)
Conditions: Engine Running, Sweep System Activated, Vacuum System ON
MANIFOLD ASSEMBLY

T2

SV2
VACUUM
FAN MOTOR
M6
MTR5

M3
ENGINE
COOLING FAN
MOTOR
M5
MTR6
RV2
172 BAR
(2500 psi)
G2

TEST
PORT

P2

PUMP PUMP PUMP
3
2
4

PUMP
1

H

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

117

S30 9004086 (4--08)

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Hydraulic Troubleshooting

S30 SERVICE INFORMATION
Main Brush Lower (S30XP, S30X4)

Conditions: Engine Running, Sweep System Activated, Vacuum Fan OFF
MANIFOLD ASSEMBLY

T2

SV2
VACUUM
FAN MOTOR
M6
MTR5
M3
ENGINE
COOLING FAN
MOTOR
M5
MTR6
RV2
172 BAR
(2500 psi)

G2

TEST
PORT

SV8

C9
C8

CYL4
LOWER
MAIN BRUSH
LIFT CYLINDER

P2

H

PUMP PUMP PUMP
3
2
4

PUMP
1

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

118

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Hydraulic Troubleshooting

Main Brush & Side Brush(es) Lower (S30XP, S30X4)
Conditions: Engine Running, Sweep System Activated, Side Brush(es) Activated, Vacuum Fan OFF
MANIFOLD ASSEMBLY

T2

SV2
VACUUM
FAN MOTOR
M6
MTR5
M3

ENGINE COOLING
FAN MOTOR
M5
MTR6
RV2
172 BAR
(2500 psi)

G2

TEST
PORT

SV8

C9
C8
CYL4

LOWER

MAIN BRUSH LIFT CYLINDER

SV7

C7
C6
CYL3
P2

PUMP PUMP PUMP
3
2
4

LOWER

RH SIDE BRUSH
LIFT CYLINDER
PUMP
1

CYL6

LOWER

H

LH SIDE BRUSH
LIFT CYLINDER

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

119

S30 9004086 (4--08)

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Hydraulic Troubleshooting

S30 SERVICE INFORMATION
3-- Wheel Steering System (S30, S30XP)

STEERING
WHEEL

T

STEERING VALVE ASSEMBLY

R
CK2
L

CYL5

RV4
80 BAR
(1160 psi)

RIGHT TURN
LEFT TURN

STEERING CYLINDER
P

H

PUMP PUMP PUMP
3
2
4

PUMP
1

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

120

S30 9004086 (4--08)

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S30 SERVICE INFORMATION

Hydraulic Troubleshooting
4-- Wheel Steering System (S30X4)

STEERING
WHEEL
STEERING
PRIORITY
VALVE

T
RV4
82.7 BAR
(1200 psi)

T

CK2

OR
0.76 mm
(0.030 in)

R
E

LS
OR

L

0.66 mm
(0.026 in)
CF
P

P
EF

OR

STEERING VALVE ASSEMBLY

0.66 mm
(0.026 in)

CYL5

RIGHT TURN
LEFT TURN

STEERING CYLINDER

PUMP PUMP PUMP
3
2
4

PUMP
1

H

ENGINE

RV9
172 kPa
(25 psi)

STRN1

RV8
20.7 kPa
(3 psi)
FLTR

HTX

RES1

121

S30 9004086 (4--08)

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PUMP PUMP PUMP
3
2
4

CK4

CV

PUMP
1A

RV5
8.2 BAR
(120 psi)

PUMP
1

A

ENGINE

MTR6

DRIVE
WHEEL

S30 9004086 (4--08)

122

RV6
310 BAR
(4500 psi)

RV7
206 BAR
(3000 psi)
CK3

B

RV9
172 kPa
(25 psi)

FLTR

Find... Go To..

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STRN1

RV8
20.7 kPa
(3 psi)

RES1

H

S30 SERVICE INFORMATION
Hydraulic Troubleshooting

3-- Wheel Propel System (S30, S30XP)

PUMP PUMP PUMP
3
2
4

STRN1

RV8
20.7 kPa
(3 psi)

RV6
310 BAR
(4500 psi)

RV7
206 BAR
(3000 psi)

RES1

CK4

CK3
CV1

RV5
18.9 BAR
(275 psi)

PUMP
1A

PUMP
1

CV2

B

A

ENGINE

P1

P2

PROPEL
SYSTEM
FLOW
DIVIDER
VALVE

RV9
172 kPa
(25 psi)

M1

M2

M4

M3

CV3

RV

11 BAR
(160 psi)

MTR
6

CV4

RV

11 BAR
(160 psi)

LEFT
DRIVE
WHEEL

MTR
7

RIGHT
DRIVE
WHEEL

123

S30 9004086 (4--08)

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FLTR

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Hydraulic Troubleshooting
S30 SERVICE INFORMATION

4-- Wheel Propel System (S30X4)

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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.
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PERMIT NO. 94

MINNEAPOLIS, MN

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Technical Publications #15
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P.O. Box 1452
Minneapolis, MN 55440--9947

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.
Machine

Rev. No.

Publish Date
Page
- Report Error - Suggestion

Name

Date

Customer Number
Company
Address
City/State/Zip Code

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Find... Go To..
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Home

Tape here

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

TENNANT COMPANY
Technical Publications #15
701 North Lilac Drive
P.O. Box 1452
Minneapolis, MN 55440--9947



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