Nilfisk-Advance SR 1900, 56507009, 56507010, 56507011 Troubleshooting Manual

SR 1900

Quick Start Troubleshooting Manual

Models: 56507009 (4 cyl LPG), 56507010 (4 cyl Petrol), 56507011 (4 cyl Diesel)

2/09 Revised 8/12
FORM NO. 56043129

Printed in USA

TABLE OF CONTENTS

GENERAL INFORMATION ................................................................................................................................................ 3-6

SAFETY INSTRUCTIONS .................................................................................................................................................... 7

TECHNICAL SPECIFICATIONS ........................................................................................................................................ 8-9

MAINTENANCE .............................................................................................................................................................10-13

PM CHECKLIST ............................................................................................................................................................14-15

KNOW YOUR MACHINE ............................................................................................................................................... 16-21

OPERATOR’S COMPARTMENT ......................................................................................................................................18

CONTROL PANEL ............................................................................................................................................................ 19

CONTROL PANEL DIAGNOSTICS .............................................................................................................................20-21

GENERAL MACHINE TROUBLESHOOTING GUIDE TABLE OF CONTENTS ................................................................. 22

ENGINE TROUBLESHOOTING FLOW CHARTS .........................................................................................................23-30

WHEEL DRIVE SYSTEM ....................................................................................................................................................31

TROUBLESHOOTING CHECK LIST ................................................................................................................................ 31

STEERING SYSTEM .......................................................................................................................................................... 32

STEERING SYSTEM TROUBLESHOOTING OVERVIEW ..............................................................................................32

TROUBLESHOOTING GUIDE..........................................................................................................................................32

SWEEPING SYSTEM ....................................................................................................................................................33-41

MAIN BROOM .............................................................................................................................................................33-34

SIDE BROOMS ............................................................................................................................................................35-37

DUST CONTROL IMPELLER ......................................................................................................................................38-39

SHAKER MOTOR ........................................................................................................................................................40-41

HOPPER SYSTEM ........................................................................................................................................................42-48

LIFT CYLINDER ..........................................................................................................................................................42-45

DUMP DOOR CYLINDER............................................................................................................................................46-48

SOLUTION SYSTEM .....................................................................................................................................................49-50

MISTING PUMP ...........................................................................................................................................................49-50

ENGINE SYSTEM .........................................................................................................................................................51-56

ENGINE SPECIFICATIONS.........................................................................................................................................51-52

ENGINE MAINTENANCE ................................................................................................................................................. 52

CHECK ENGINE LIGHT TROUBLESHOOTING .............................................................................................................. 53

MISCELLANEOUS ENGINE SYSTEM INFORMATION ...................................................................................................55

GM 1.6L GASOLINE FUEL SYSTEM DESCRIPTION......................................................................................................55

HYDRAULIC SYSTEM ..................................................................................................................................................57-66

HYDRAULIC SYSTEM TROUBLESHOOTING ................................................................................................................57

GENERAL HYDRAULIC SPECIFICATIONS TABLE ........................................................................................................58

HYDRAULIC TRUTH TABLE ............................................................................................................................................ 59

MANIFOLD ASSEMBLY COMPONENTS ....................................................................................................................59-60

PRESSURE RELIEF VALVE .............................................................................................................................................61

HYDRAULIC DIAGRAM ...................................................................................................................................................62

HYDRAULIC SYSTEM LAYOUT FOR OPTIONAL LEFT SIDE BROOM ......................................................................... 63

HYDRAULIC COMPONENT LOCATION .......................................................................................................................... 65

HYDRAULIC SCHEMATIC ...............................................................................................................................................66

ELECTRICAL SYSTEM .................................................................................................................................................67-79

ELECTRICAL COMPONENT LOCATION.........................................................................................................................67

WIRING DIAGRAM ......................................................................................................................................................69-70

WIRING SCHEMATIC ..................................................................................................................................................71-73

ENGINE HARNESS GM 1.6L GAS ...................................................................................................................................74

ENGINE HARNESS GM 1.6L LPG ................................................................................................................................... 75

ENGINE WIRING HARNESS GM DETAIL ....................................................................................................................... 76

PROGRAMMABLE CONTROL OPTIONS .....................................................................................................................77-79

Note: All references to right, left, front, or rear in this manual are as seen from the operator’s stand-point.

2 - FORM NO. 56043129 - SR 1900

GENERAL INFORMATION
INTRODUCTION

This manual will help you get the most from your Nilsk rider Scrubber-Sweeper. Read it thoroughly before servicing the machine.

Note: Bold numbers and letters in parentheses and underlined indicate an item illustrated on pages 14-17 i.e. (B).

This product is intended for commercial use only.

PARTS AND SERVICE

Repairs, when required, should be performed by your Authorized Nilsk Service Center, who employs factory trained service personnel, and
maintains an inventory of Nilsk original replacement parts and accessories.

Call the NILFISK DEALER named below for repair parts or service. Please specify the Model and Serial Number when discussing your machine.

(Dealer, afx service sticker here.)

NAME PLATE

The Model Number and Serial Number of your machine are shown on the Nameplate on the machine. This information is needed when ordering
repair parts for the machine. Use the space below to note the Model Number and Serial Number of your machine for future reference.

MODEL NUMBER ________________________________________

SERIAL NUMBER ________________________________________

HOPPER SAFETY SUPPORT

WARNING!

Make sure the Hopper Safety Support (5) is in
place, by using the Hopper Safety Support Handle
(I) whenever attempting to do any maintenance work

under or near the raised hopper. The Hopper Safety
Support (5) holds the hopper in the raised position

to allow work to be performed under the hopper.

NEVER rely on the machine’s hydraulic components
to safely support the hopper.

JACKING THE MACHINE

CAUTION!

Never work under a machine without safety stands or blocks to support the machine.

• When jacking the machine, do so at designated locations (Do Not jack on the hopper) – see jacking locations (8).

FORM NO. 56043129 - SR 1900 - 3

GENERAL INFORMATION
TRANSPORTING THE MACHINE

CAUTION!

Before transporting the machine on an open truck or trailer, make sure that . . .

• All access doors are latched securely.

• The machine is tied down securely - see tie-down locations (26).

• The machine parking brake is set.

TOWING OR PUSHING A DISABLED MACHINE

CAUTION!

The machine’s drive propelling pump is manufactured with an adjustable tow valve. This valve prevents damage to the hydraulic system when the
machine is being towed/pushed short distances without use of the engine.

To access the valve; unlatch and open the Oil Reservoir / Fuel Tank Cover (20) and then open the Engine Compartment Cover (1) and locate the
hydrostatic pump at the rear of the engine. Turn the valve 90 degrees, this disengages the hydrostatic lock between the motor and pump.

WARNING: The hydraulic propelling pump can be damaged if the machine is towed with the valve in the normal working position (A). Reference
the illustration on the following page for the normal working setting (A) (vertical) and the free wheeling towing setting (B) (horizontal). Note: If the
tow valve is left in free wheeling (B) (horizontal) position the propelling pump can’t drive the machine FWD or REV. No damage will result, just
re-set valve to the normal working setting (A) (vertical). NOTE: Tow or push machine no faster than a normal walking pace (2-3 miles per hour)
and for short distances only. If the machine is to be moved long distances the drive wheel needs to be raised off the oor and placed on a suitable

transport dolly.

4 - FORM NO. 56043129 - SR 1900

FORM NO. 56043129 - SR 1900 - 5

OTHER MANUALS AVAILABLE

The following manuals are available from the Nilsk Literature Service Department, for your Rider Scrubber/Sweeper:

• GeneralInformation

- Nilsk website (www.nilsk-advance.com)

• Parts List - Form Number 56042514 (all systems w/optional kits & accessories)

• Operation Manual - Form Number 56041661 (Danish, Norway, Swedish, Finnish)

56041662 (German, French, Dutch, Russian)
56041663 (Spanish, Portuguese, Italy, Greek)
56041664 (Estonian, Latvian, Lithuanian, Slovenian)
56041665 (Slovakian, Czech, Polish, Hungarian)
56041666 (Turkish, English)

• Quick Start Troubleshooting Manual 56043129

• Cab Manuals

- Cab Addendum (Operator Manual) 56041789

- Cab Addendum (Parts List) 56042515

- Cab Addendum (Service Manual) 56043123

• Engine Manuals

- 1.6L Industrial Engine Operator Manual (excerpt from 16LECSS) 56041564

- 1.6L Industrial Engine Service Manual 36100009*

- PSI Tier 2 1.6L PFI Certied Engine Service Manual G/LP PSI1P6LPFI-A*

- V1505 Kubota Diesel Engine Service Manual (WSM English) 97897-02432

- V1505 Kubota Diesel Engine Service Manual (WSM English, French, German) 97897-01640

- V1505 Kubota Diesel Engine Operator Manual (English, French, German, Italian, Spanish) 16622-8916-3

*Available in electronic format only

6 - FORM NO. 56043129 - SR 1900

CAUTIONS AND WARNINGS
SYMBOLS

Nilsk uses the symbols below to signal potentially dangerous conditions. Always read this information carefully and take the necessary

steps to protect personnel and property.

DANGER!

Is used to warn of immediate hazards that will cause severe personal injury or death.

WARNING!

Is used to call attention to a situation that could cause severe personal injury.

CAUTION!

Is used to call attention to a situation that could cause minor personal injury or damage to the machine or other property.

Read all instructions before using.

GENERAL SAFETY INSTRUCTIONS

Specic Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.

DANGER!

• This machine emits exhaust gases (carbon monoxide) that can cause serious injury or death, always provide adequate ventilation

when using machine.

WARNING!

• This machine shall be used only by properly trained and authorized persons.

• While on ramps or inclines, avoid sudden stops when loaded. Avoid abrupt sharp turns. Use low speed down hills. Clean only

while ascending (driving up) the ramp.

• To avoid hydraulic oil injection or injury always wear appropriate clothing and eye protection when working with or near hydraulic

system.

• Turn the key switch off (O) and disconnect the batteries before servicing electrical components.

• Never work under a machine without safety blocks or stands to support the machine.

• Do not dispense ammable cleaning agents, operate the machine on or near these agents, or operate in areas where ammable

liquids exist.

• Only use the brooms provided with the appliance or those specied in the instructions for use manual. The use of other brooms

may impair safety.

CAUTION!

• This machine is not approved for use on public paths or roads.

• This machine is only approved for hard surface use.

• This machine is not suitable for picking up hazardous dust.

• When operating this machine, ensure that third parties, particularly children, are not endangered.

• Before performing any service function, carefully read all instructions pertaining to that function.

• Do not leave the machine unattended without rst turning the key switch off (O), removing the key and applying the parking

brake.

• Turn the key switch off (O) and remove the key, before changing the brooms, and before opening any access panels.

• Take precautions to prevent hair, jewelry, or loose clothing from becoming caught in moving parts.

• Before use, all doors and hoods should be properly latched.

• Do not use on surfaces having a gradient exceeding that marked on the machine.

• All doors and covers are to be positioned as indicated in the instruction manual before using the machine.

SAVE THESE INSTRUCTIONS

FORM NO. 56043129 - SR 1900 - 7

TECHNICAL SPECIFICATIONS

GeneralSpecicationscommontoAll Models English (Metric)

Dimensions Gas & Propane

Length 93.75 inches (238cm)
Width (minimum)* 64.5 (164cm)
Height 58.5 inches (149cm)
Height w/overhead guard 81.25 inches (206cm)
Height w/cab 79 inches (201cm)
Ground clearance 3.1 inches (7.8cm)
Minimum ceiling height dumping clearance 101.4 inches (257.5cm)

Weights

Gross weight** 4 Cylinder Diesel 3000 lbs. (1360kg)
Gross weight** GM 1.6L 3300 lbs. (1496kg)

Sweep System

Main broom length 50 inches (127cm)
Main broom diameter 14 inches (35.5cm)
Main broom bristle length 3.25 inches (8.26cm)
Sweeping path w/single side broom 65 inches (165cm)
Sweeping path w/dual side brooms 77 inches (196cm)
Side broom diameter (STD) 24 inches (61cm)
Side broom bristle length 6 inches (15.2cm)

Hopper System

Capacity 14 ft3 (396L)
Lifting capacity 1000 lbs. (454kg)
Dump height (variable) Max. 60 inches (152cm)
Dump height with door open 52.75 inches (134cm)

Dust Control System

Filter type: Pleated paper panel STD (optional poly lter available)

Filter media area 88 ft2 (8.17m2)

Filter dimension 3.19” x 18” x 30” (8.1cm x 45.7cm x 76.2cm)
Dust Guard Water Misting Tank Capacity 14 gal. (53L)

Steering System

Type: Full power steering unit and hydraulic cylinder

Turn radius left 95” (242cm)
Turn radius right 63” (160cm)
Minimum aisle turn width (left) 109 in. (277cm)

Hydraulic System

Oil type: SAE 10W-30 (ll to bottom of screen)
System ll capacity 11 gal. (41.6L)

Engine System

Diesel & Petrol (gasoline) fuel tank capacity 12.5 gal. (47.3L)

Tires

Tire pressure (all 3) 90-100 PSI

*Width (minimum): Width of machine body at the hopper, no side brooms.
**Gross Weight: Standard machine without options, with 175 lbs. operator, with standard sweeping brooms and full tank of fuel.

8 - FORM NO. 56043129 - SR 1900

TECHNICAL SPECIFICATIONS

SpecicationscommontoEngine Size English (Metric)

Sound Level

At operators ear 83 dBA

Speed and Gradeability

Maximum grade angle (transport) 25% / 14°
Maximum grade angle (sweeping) 25% / 14°
Maximum trailer loading angle (all models) 19.4°
Travel speed (Maximum) 9 mph (14.5km/h)
Maximum reverse speed (all models) 5.5 mph (8.8km/h)

FRONT VIEW

Width

Height

w/overhead

guard

Height

SIDE VIEW

Length

FORM NO. 56043129 - SR 1900 - 9

MAINTENANCE
MAINTENANCE SCHEDULE

Maintenance intervals given are for average operating conditions. Machines used in severe operational environments may require service more often.

MAINTENANCE ITEM PERFORM DAILY

Perform the “After Use” maintenance steps X

Check parking brake X
Check engine oil X
*Clean main and side broom(s) X
Check engine air lter indicator X
Check engine coolant level X
Check hydraulic oil level X

MAINTENANCE ITEM 15 hrs. 30 hrs. 150 hrs. 300 hrs. 1000 hrs.

*Rotate main broom X
*Inspect/adjust brooms X
* Check / Clean Hopper Dust Control Filter Using Method “A” X
*Inspect broom housing skirts X
*Inspect hopper seals X

Clean radiator and oil cooler X
Perform engine maintenance X

*Inspect and grease steering spindle X
* Check / Clean Hopper Dust Control Filter Using Method “B” X
* Check / Clean Hopper Dust Control Filter Using Method “C” X
Change the hydraulic “charge” oil lter X
Change reservoir hydraulic oil X

Flush the radiator X

All engine fuel lter(s) X**

*See the Mechanical Repair section and Operator Manual for detailed maintenance information of systems listed. (Sweeping, Hopper,

Steering & Dust Control)

**Fuel lters replacement: 400 hrs or yearly. Reference the Parts List for engine type and lter part number.

AFTER USE

1 Shake the Hopper Dust Control Filter (LL) and empty the hopper.
2 Check the maintenance schedule and perform all required maintenance before storage.
3 Move the machine to an indoor storage area.
4 Shut down the engine according to the shut down procedures.
5 Make sure the Ignition Switch (TT) is OFF and the Parking Brake (F) is engaged.
NOTE: It is safe to clean this machine with a pressure washer as long as you do not spray directly at or into electrical components. The machine should always

be allowed to dry completely before each use.

TO SHUT DOWN THE DIESEL / GASOLINE ENGINE

1 Turn all controls to the OFF position.
2 Raise the brooms.
3 Place the Engine Speed Switch (GG) in IDLE and let the engine idle for 25 - 30 seconds.
4 Turn the Ignition Key Switch (TT) OFF and remove the key.
5 Apply the Parking Brake (F).

TO SHUT DOWN THE PROPANE ENGINE

1 Turn all controls to the OFF position.
2 Raise the brooms.
3 Turn the service valve on PROPANE Tank (21) OFF.
4 Run the engine until all the PROPANE is dispelled from the line (the engine will stall).
5 Turn the Ignition Key Switch (TT) OFF and remove the key. NOTE: The 4 cylinder LPG engine will continue to run for a few seconds after switching the key

to off. This is part of the proper operation of the closed loop electronic control system.

6 Apply the Parking Brake (F).

10 - FORM NO. 56043129 - SR 1900

MAINTENANCE
IMPORTANT MACHINE LUBRICATION

Rear Steering Yoke Bearing Assembly

Once every 150 hours attach a grease gun to the yoke bearing pivot zert (location under operator’s seat) and pump a small amount of grease into
bearing assembly.

Also every 150 hours apply light machine oil to maintain free movement of all general pivot points. Example the seat, and broom door hinges etc.
Broom and hopper pivots use composite bearings lubrication is not required.

WARNING

For the protection of the environment; when servicing any of the machine’s lubrication uids they must be disposed of safely in accordance with
your local environmental regulations (recycling). Examples of machine lubrication products: (Enginecrankcaseoil,Enginecrankcaseoillter,

Hydraulicsystemoil,Hydraulicsystemoillters).

ENGINE COOLANT

CAUTION!

Do not remove the radiator cap when the engine is hot.

To check the engine coolant level, rst unlatch and open the Oil Reservoir / Fuel Tank Cover (20) then lift the Engine Compartment Cover (1) and
observe the coolant level on the Coolant Recovery Tank (15) or (22). If the level is low add a mixture of half water and automotive type anti-freeze.
Clean the radiator and oil cooler exteriors by washing with low-pressure water or using compressed air every 30 hours. Service Note: The oil cooler

tips out for easy cleaning.

ENGINE OIL – GASOLINE (PETROL) & LPG

Check the engine oil level when the machine is parked on a level surface and the engine is cool. Change the engine oil after the rst 35 hours of
operation and every 150 hours after that. Use any SF or SG rated oil meeting API specications and suited to seasonal temperatures. Refer to the
Engine System section for oil capacities and additional engine specications. Replace the oil lter with every oil change.

TEMPERATURE RANGE OIL WEIGHT

Above 60° F (15° C) SAE 10W-30
Below 60° F (15° C) SAE 5W-30

ENGINE OIL - DIESEL

Check the engine oil level when the machine is parked on a level surface and the engine is cool. Change the engine oil after the rst 35 hours
of operation and every 150 hours after that. Use CF, CF-4 or CG-4 oil meeting API specications and suited temperatures (*important reference
the oil/fuel type note below for further diesel oil recommendations). Refer to the Engine System section for oil capacities and additional engine
specications. Replace the oil lter with every oil change.

TEMPERATURE RANGE OIL WEIGHT

Above 77 °F (25 °C) SAE 30 or 10W-30
32 °F to 77 °F (0 °C to 25 °C) SAE 20 or 10W-30
Below 32 °F (0 °C) SAE 10W or 10W-30

* Diesel Lubricating Oil Note:

With the emission control now in effect, the CF-4 and CG-4 lubricating oils have been developed for use of a low-sulfur fuel on-road vehicle

engines. When an off-road vehicle engine runs on a high-sulfur fuel, it is advisable to employ the CF, CD or CE lubricating oil with a high total
base number. If the CF-4 or CG-4 lubricating oil is used with a high-sulfur fuel, change the lubricating oil at shorter intervals.

• Lubricating oil recommended when a low-sulfur or high-sulfur fuel is employed.

Fuel

Lubricating

Oil class

CF

CF-4

CG-4

O : Recommendable X : Not recommendable

Low sulfur

(0.5 % ≥)

O O
O X
O X

High sulfur Remarks

TBN ≥ 10

FORM NO. 56043129 - SR 1900 - 11

MAINTENANCE
ENGINE AIR FILTER

The engine Air Filter (24) is located in the engine compartment. Check the air mechanical vacuum lter Service Indicator (27) before each use of
the machine. Do not service the air lter unless the indicator is shown (red).

CAUTION!

When servicing the engine air lter elements, use extreme caution to prevent dust and dirt from entering the engine.

The engine air lter contains a primary (outer) and a safety (inner) lter element. The primary element may be cleaned twice before being replaced.
Replace the safety element every third time that the primary element is serviced. Never try to clean the safety element. To clean the primary lter
element, remove the cover from the dust cup end of the canister and pull out the primary element. Clean the element with compressed air (maximum
pressure 100 PSI) or wash it with water (maximum pressure 40 PSI). Do not put the element back into the canister until it is completely dry.

Special Service Note: Inspect the complete air intake system for proper routing (kinks & restrictions) and sound tight connections. The mechanic

should run their hand around the air intake hoses to check for any cracks and holes that will allow non-ltered air to enter the engine that will
severely shorten the engine’s useful life.

ENGINE MAINTENANCE (150 HOURS)

At 150 hour intervals it is recommended that the following service be performed: Change oil and lter, clean and inspect spark plugs, check all
engine belts condition and adjustment, check battery charge and level, check cooling system hoses and clamps and check general condition and

performance of engine.

Note: Reference the separately supplied PSI GM Power Train Products Operation and Maintenance manual for more detailed service data. See
the “Other Manuals Available” section for a complete list of the engine manuals that are available.

SPECIAL LIQUID PROPANE FUEL SYSTEM MAINTENANCE ON THE GM 1.6L ENGINE

Every 150 hours inspect and drain any oil build up from the LP fuel system electronic pressure regulator (EPR). During the course of normal
operation oils or “heavy ends” may build inside the chambers of the propane regulator. These oils and heavy ends may be a result of poor fuel
quality, contamination of the fuel supply chain, or regional variation in the make up of the fuel. If the build up of the oil is signicant this can affect
the function of the fuel control system. Note: Reference the Tier 2 PSI 1.6l PFI certied engine service manual form # PSI1P6LPFI-A, and follow

the procedure to drain the EPR regulator.

12 - FORM NO. 56043129 - SR 1900

MAINTENANCE
HYDRAULIC OIL

WARNING!

To avoid hydraulic oil injection or injury, always wear appropriate clothing and eye protection when working with or near hydraulic

system.

Check the Hydraulic Oil Level. Unlatch and swing open the Oil Reservoir / Fuel tank Cover (20). Remove the reservoir cap to check

the oil level. The hydraulic oil level should be half way up the screen lter inside the ller neck of the reservoir. Add SAE 10W30 motor oil
if it is below this level. Change the oil if major contamination from a mechanical failure occurs.

Change the Hydraulic “Charge” Oil Filter once a year or every 1000 hours.

HOPPER DUST CONTROL FILTER (PANEL FILTER)

The hopper dust control lter must be cleaned regularly to maintain the efciency of the vacuum system. Follow the recommended lter service
intervals for the longest lter life.

CAUTION!

Wear safety glasses when cleaning the lter.
Do not puncture the paper lter.
Clean the lter in a well-ventilated area.
Wear appropriate dust mask to avoid breathing in dust.

Toremovethehopperdustcontrollter...

1 Unlatch and open the Hopper Cover (16). Make sure that the Hopper Cover Prop Rod (17) is in place.
2 Inspect the top of the Hopper Dust Control Filter (12) for damage. A large amount of dust on top of the lter is usually caused by a hole in the

lter or a damaged lter gasket.

3 Unthread and remove the four Shaker Assembly Retainer Knobs (13). Lift off the Dust Filter Shaker Assembly (11) to access the panel lter.
4 Lift the Hopper Dust Control Filter (12) out of the machine.

5 Cleanthelterusingoneofthemethodsbelow:

Method “A”
Vacuum loose dust from the lter. Then gently tap the lter against a at surface (with the dirty side down) to remove loose dust and dirt.
Method “B”

Vacuum loose dust from the lter. Then blow compressed air (maximum pressure 100 psi) into the clean side of the lter (in the opposite

direction of the airow).

Method “C”

Vacuum loose dust from the lter. Then soak the lter in warm water for 15 minutes, then rinse it under a gentle stream of water (maximum

pressure 40 psi). Let the lter dry completely before putting it back into the machine.

6 Follow the instructions in reverse order to install the lter. If the gasket on the lter is torn or missing, it must be replaced. NOTE: Before

replacing lter clear debris from dust plate located under lter. Verify that the debris ap at the rear of the dust plate swings freely

HOPPER DUST CONTROL FILTER (OPTIONAL NILFISK POCKET FILTER SYSTEM)

The optional Nilsk pocket lter system is basically maintenance free. The only periodic maintenance required by the machine operator is to run the
Shaker (LL) on a daily basis. NOTE: The shaker should only be run with the hopper in the down position.

FORM NO. 56043129 - SR 1900 - 13

SR 1900

PM Checklist

Defect Codes

Customer A needs adjustment

B binding

Address C dirty or contaminated

D damaged, bent or torn

City St Zip L leaks

M missing

Model Serial Hours W worn out

Ref

1 Check Neutral Safety/Sense Switch operation (To test depress drive pedal and start the

engine, it should not start.)

2 Engine Starting with pedal in neutral (if it will not start check sensor switch

programming)

3 Engine Speeds 4 cyl G/P (1200 - 2400 RPM) A low power

4 Engine Speeds Diesel (note electrical actuator linkage 1200 - 2400 RPM)

5 Drive Pedal Linkage (check for FWD/REV drive and any neutral creep) A B

6 Drive System Performance noisy sluggish

7 Brakes (check both service & parking) A B W

8 Steering excessive play

9 Hopper Up/Down (also check operation of the safety hopper support) A B

10 Hopper Dump Door Open/Close A B

11 Main Broom Raise /Lower <----->

12 Side Broom Raise /Lower <----->

13 Main Broom On/Off <----->

14 Side Broom On/Off <----->

15 Headlights, Gauges and Optional Accessories (example rotating beacon, backup alarm)

16 Dust Control Filter Shaker & Vacuum Impeller <----->

17 Tilt Steering Mechanism and Seat Adjustment lever A B

18 Dust Guard (OPT) Water Pump Operation On/Off

OK

OPERATIONAL INSPECTION ITEMS

Defect Codes

(circle)

A B C

starts hard

Does

Not

Work

Does

Ref

19 Side Broom Pattern & Height Adj. (min bristle wear 3 inches) 3 O'clock to 11 A B D W

20 Side Broom Motor B L

21 Hopper Cover Gasket D W

22 Hopper Dust Filter & Gasket D W

23 Dust Control Vacuum Impeller Motor L

24 Hopper Dump Door Cylinder A B L

25 Hopper Skirting & Seals (raise hopper to inspect) D M W

26 Hopper Dump Door & Seal (raise hopper to inspect) A B D W

27 Hopper Lift Cylinder & Hopper Interlock Switch Magnetic Switch A B L

28 Main Broom Pattern Adjustment (min bristle wear 2-1/2"

6.4cm length)

29 Main Broom Motor (open left side access door to inspect) B L

30 Broom Housing & Door Skirts D M W

31 Front tires (check lug nut torque 80FT LB, 108 Nm) Tire Pressure 90 psi L W

32 Battery Clean & Water C W

33 Engine Air Cleaner Element (inner & outer) Check SVR Indicator C W

Copyright 2007 Nilfisk-Advance. Page 1 of 2 2/21/2007

Comments

2-3" (5-7 cm) wide

pattern

OK

VISUAL INSPECTION ITEMS

Defect Codes

(circle)

A B D W

Not

Work

14 - FORM NO. 56043129 - SR 1900

Ref

34 Circuit Breaker/Relay panel (inspect electrical connections) C D

35 Hydrostatic Dump Valve Tow Valve B

36 Hopper Up Transport Speed control Cam/Cable Linkage A B

37 Propulsion drive & Accessory Pumps L

38 Hydraulic Reservoir, System Hoses & fittings L

39 Propulsion Pump Hydro Back Cable & Clevis Connections B M W

40 Engine, Oil Level, Hoses & Belts Add or Change L W

41 Engine Coolant Level L Add Coolant

42 Radiator & Oil Cooler Core Blockage L Needs Cleaning

43 Hydraulic Oil Reservoir Level (10W-30 engine oil only) Bottom of Screen L Add Oil

44 Hydraulic Oil Filter SVR Life 1000 Hrs L Replace

45 Steer Spindle & Drive Wheel motor (open operator’s seat) Grease Spindle Zert D L

46 Rear Tire (check lug nut torque 100 FT LB, 135Nm) Tire Pressure 90 psi L M W

47 Gasoline/Diesel tank , Filter & Lines C L

48 LP Tank, Hoses & Fittings L

49 LP Fuel Filter SVR Life 1500 Hrs L Replace

50 LP Fuel Regulator, Lock Off Valve & Hoses L

51 Diesel Glow Plug Indicator Light Hard Starting Replace

52 Diesel Fuel Filter L Replace

53 Engine Air-Intake Hose Assembly (air inlet to engine) clamp fittings / Holes C L

54 Dust Guard Water Tank, Misting Pump & Storage Tank

Comments

OK

VISUAL INSPECTION ITEMS (continued)

Defect Codes

(circle)

NOTE: For additional service information see service manual form number 56043129 and
operator manuals form numbers 56041661-56041666.

Defect Codes A needs adjustment C dirty or contaminated M missing
B binding D damaged, bent or torn W worn out
L leaks

Does

Not

Work

WORK COMPLETED BY: ACKNOWLEDGED BY:

Service Technician Signature Date Customer Signature Date

FORM NO. 56043129 - SR 1900 - 15

KNOW YOUR MACHINE

As you read this manual, you will occasionally run across a bold number in parentheses and underlined - example: (2). These numbers refer to an
item on the next four pages. Refer back to these pages whenever necessary to pinpoint the location of an item mentioned in the text.

1 Engine Compartment Cover

2 LeftSideMainBroomAccessPanel

3 Battery
4 Center Cover Assembly

5 HopperSafetySupport

6 Hopper Cover Latch
7 Head Light
8 Jacking Locations (rear location is large weight below radiator)
9 Side Broom
10 Side Broom Height Adjustment Knob
11 Dust Filter Shaker Assembly
12 Hopper Dust Control Filter
13 Shaker Assembly Retainer Knobs
14 Hydraulic Oil Filter
15 Coolant Recovery Tank (GM location)

16 - FORM NO. 56043129 - SR 1900

KNOW YOUR MACHINE (CONTINUED)

16 Hopper Cover
17 Hopper Cover Prop Rod
18 Right Side Main Broom Access Panel
19 Oil Reservoir
20 Oil Reservoir / Fuel Tank Cover
21 Fuel Tank (LPG tank shown / Gasoline tank is in same location)
22 Coolant Recovery Tank (diesel location)
23 Radiator Cap
24 Engine Air Filter (diesel location)
25 Fuel Tank Cover Release Latch
26 Tie-Down Locations (5)
27 Air Filter Service Indicator
28 Engine Air Filter (GM location)

FORM NO. 56043129 - SR 1900 - 17

KNOW YOUR MACHINE
OPERATOR’S COMPARTMENT

A Operator’s Seat
B Main Broom Lever
C Main Broom Adjust Knob
D Control Panel (See Associated Pages)
E Steering Wheel
F Brake Pedal / Parking Brake
G FWD / REV Drive Pedal
H Circuit Breaker Panel

I HopperSafetySupportHandle

J Operator Seat Adjustment Lever

18 - FORM NO. 56043129 - SR 1900

KNOW YOUR MACHINE
CONTROL PANEL

AA Fuel Gauge (Gasoline and Diesel Only)
BB Horn Switch
CC PROPANE Low Indicator Light
DD Headlight Switch
EE Check Engine Light MIL (GM 1.6L Only)
FF Glow Plug Indicator Light (Diesel Only)
GG Engine Speed Switch
HH Side Broom ON-Down / OFF-Up Switch
II Dust Control Indicator
JJ Dust Control Switch
KK Plugged Filter Indicator (optional)
LL Shaker Switch

MM Hopper UP Indicator
NN Open Dump Door Switch
OO Hopper Over-temp Indicator (optional)
PP Close Dump Door Switch
QQ Lower Hopper Switch
RR Raise Hopper Switch
SS Hour Meter
TT Ignition Switch
UU Main Controller Fault Code Light
VV Voltmeter
XX Engine Coolant Temperature
YY Engine Oil Pressure

FORM NO. 56043129 - SR 1900 - 19

SR 1900 CONTROL PANEL DIAGNOSTICS

Functionofthemaincontroller’sserviceindicatorfaultblinkcodedisplaylight

The A2 main controller will out put a ashing fault code to the operator display panel when or if there is a problem (current overloads) associated with
specic electrical low current circuit controller output functions. Examples of circuits; hydraulic solenoid coils used to turn on & off hydraulic loads
and numerous relays used for activating machine function such as the headlights, horn, shaker motor, back-up alarm etc.

See Figure 1. When an A2 controller fault occurs the service indicator light (LED) (UU) will blink (ash) a special fault (error) code sequence until

the fault is corrected. See “Table A” for a description of the fault indications.

Service Note: Instructions on how to read the fault code service indicator light. The service indicator LED blink code should operate as follows:

• First part of code (250mS period per ash – 125mS ON, 125mS OFF the 700mS LED OFF period.

• Second part of the code (250mS period per ash – 125mS ON, 125mS OFF the 700mS LED OFF period.

• 2 second LED off period

• Repeat sequence

If multiple faults are present, the codes should appear in order until all are displayed and then the entire sequence will repeat.

Example: Code1, 2
0 00 0 00 one light blink, a short pause two blinks, long pause and the code will be repeated.

LED on for 125mS
LED off for 700mS
LED on for 125mS
LED off for 125mS
LED on for 125mS
LED off for 2000mS
Repeat

FIGURE 1

20 - FORM NO. 56043129 - SR 1900

TABLE A

Fault

Number

1 1,1

2 1,2

3 1,3

4 1,4

5 2,1

6 2,2

7 2,3

8 2,4

9 3,1

10 3,2

Service

LED
Blink
Code

Fault Description Output

Pin #

Solenoid S1 hopper close/open overload

Coil spec is 8 Ohms

Solenoid S2 main broom overload

Coil spec is 8 Ohms

Solenoid S3 side broom overload Coil

spec is 8 Ohms

Solenoid S4 dust control overload

Coil spec is 8 Ohms

Solenoid S5 hopper up/down overload

Coil spec is 8 Ohms

Solenoid S6 hopper up/bypass overload

Coil spec is 8 Ohms

Solenoid S7 hopper door/open overload

Coil spec is 8 Ohms

Solenoid S8 dust control bypass
overload

Coil spec is 6 Ohms

Solenoid S9 hopper lower overload

Coil spec is 8 Ohms

Shaker relay K3 overload

Coil spec is 85 Ohms

J1-1

J1-2

J1-3

J1-4

J1-5

J1-6

J1-7

J1-8

J1-9

J1-14

Troubleshooting Action

1. Check S1 coil wiring for a short circuit Vio + & Blu/Wht

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check S2 coil wiring for a short circuit Vio + & Grn/Gra

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check S3 coil wiring for a short circuit Vio + & Brn/Blk

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check S4 coil wiring for a short circuit Vio + & Brn/Yel

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check S5 coil wiring for a short circuit Vio + & Red/Gra

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check S6 coil wiring for a short circuit Vio + & Blu/Gra

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check S7 coil wiring for a short circuit Vio + & Blk/Wht

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check S8 coil wiring for a short circuit Vio + & Brn

-. 2. Check coil resistance if below 4 Ohms replace.3.
Substitute a new A2 control box.

1. Check S9 coil wiring for a short circuit Vio + & Yel/Grn

-. 2. Check coil resistance if below 6 Ohms replace.3.
Substitute a new A2 control box.

1. Check K3 coil wiring for a short circuit Vio + & Yel/Red

-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.

11 3,3 Back-up alarm overload J1-15

12 3,4

13 4,1

14 4,2

15 4,3

16 4,4

Light relay K2 overload

Coil spec is 85 Ohms

Neutral start relay K4 overload

Coil spec is 85 Ohms

Horn relay K1 overload

Coil spec is 85 Ohms

Engine speed output overload
Note the Gra/Blu wire is 0 V’s when

engine is @ idle.

Spare overload

Not used at this time

1. Check the alarm wiring for a short circuit Vio + & Grn/
Brn -. 2. Disconnect alarm wiring if overload goes away
replace the alarm if not substitute a new A2 control box.

1. Check K2 coil wiring for a short circuit Vio + & Yel/Wht

J1-16

J1-18

J1-19

J1-17

J1-12 NA

-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.

1. Check K4 coil wiring for a short circuit Vio + & Gry/Wht

-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.

1. Check K1 coil wiring for a short circuit Vio + & Vio/Brn

-. 2. Check coil resistance if below 70 Ohms replace.3.
Substitute a new A2 control box.

1. Throttle input to engine A3 ECM (GM), Woodward
governor (diesel) or A1 throttle control module (Kubota)
is +12V for high speed. Check Gra/Blu wire for a short to
ground. 2. Substitute a new A2 control box.

FORM NO. 56043129 - SR 1900 - 21

GENERAL MACHINE SYMPTOM TROUBLESHOOTING GUIDE TABLE OF CONTENTS

Engine System ...............................................................................................................................................................23-30

1.6L GM 4 cylinder engine will not crank ......................................................................................................23-24

1.6L GM 4 cylinder engine will crank but not start ........................................................................................25-26

1.6L GM engine will not run at high speed ........................................................................................................ 27

Diesel engine will crank but not start ............................................................................................................ 28-29

Diesel engine will not run at high speed ............................................................................................................ 30

Wheel Drive System (Troubleshooting check list) ...............................................................................................................31

Steering System (Troubleshooting guide) ........................................................................................................................... 32

Sweep System ...............................................................................................................................................................33-41

Main broom will not run ................................................................................................................................ 33-34

Side brooms will not run ............................................................................................................................... 35-36

Side brooms will not raise/lower ........................................................................................................................ 37

Dust control impeller will not run ..................................................................................................................38-39

Shaker motor will not run .............................................................................................................................. 40-41

Hopper System ..............................................................................................................................................................42-48

Hopper will not raise ..................................................................................................................................... 42-43

Hopper will not lower .................................................................................................................................... 44-45

Hopper dump door will not open (Part A) .......................................................................................................... 46

Hopper dump door will not close (Part A) .......................................................................................................... 47

Hopper dump door will not open or close (Part B)............................................................................................. 48

Solution System ............................................................................................................................................................. 49-50

Dust control misting pump will not operate (Optional) .................................................................................. 49-50

Note: To aid in machine system troubleshooting; see the electrical and hydraulic manual sections for additional drawings of part component locations

and diagrams to support wiring and hydraulic circuits.

22 - FORM NO. 56043129 - SR 1900

ENGINE SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

GM 1.6L 4 cylinder engine will not crank

Part A: Electrical Control and Load Circuit

Note 1: To test the key switch must be in Start position and the foot-pedal in neutral.
Note 2: Before T.S. check the CB1 60 Amp circuit breaker & 12V ‘s @ key switch Bat terminal.
Note 3: Before T.S. check Battery voltage @ starter main load red wire.

GM 1.6L 4 cylinder

engine will not crank

With the key in the start

mode, check for 12V

(+)@ Wht wire located

on starter solenoid. If yes

repair or replace starter

motor.

With starter relay

removed test for 12V@

the relay terminals #85 &

#86 (wire colors

Blue/Pink & Pink/Black)

w/key in the start mode.

Replace the defective

starter relay

@ the K4 relay do you

have 12V(+) @ the

Blue/Pink wire w/key in

the start mode.

No

Remove the starter
relay (location engine
fuse box) and test for
12V (+) @ the
Red/Tan terminal #87
to Grd w/key in the
start mode.

Test for 12V(+) @
Blue/Pink wire (#86) to
Bat Grd, w/key in the
start mode.

@ the starter relay do
you have 12V(-) from
Pink/Black wire #85 to
Bat(+) w/key in the
start mode.

No

Test for 12V input
(Red wire) @ F6
15A fuse. If NO
repair or replace
the Red Bat.+ feed
wire from its
source.

•Test F6 fuse,
replace if
defective.

•Repair Red/Tan
wire to starter
relay terminal #87

Repair the
Pink/Black wire
circuit. If good
replace the engine
ECM

No

@ the K4 relay do you

have 12V @ coil relay

wires Gra/Wht & Pink.

Yes

Replace the defective K4

neutral relay

Note A: Any time the machines hydrostat mounted neutral position sensor is replaced or the

hydrostat linkage adjusted its neutral position must be re-programmed. Also any time the A2

control box is replaced it must be re-programmed. See the programming options section in this

manual for instructions.

Test for 12V @ Pink
K4 coil wire to Battery
Grd w/key on.

No

Yes

Troubleshooting
continued on next
page (part B).

FORM NO. 56043129 - SR 1900 - 23

ENGINE SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

GM 1.6L 4 cylinder engine will not crank

Part B: Electrical Control and Load Circuit

Note 1: To test the key switch must be in start position and the foot-pedal in neutral. Also
reference Note: A below.
Note 2: Before T.S. check the CB1 60 Amp circuit breaker & 12V’s @ key switch Bat. Terminal.
Note 3: Before T.S. check battery voltage @ starter main load red wire input.

Continued from previous

Test for 12V @ the pink K4
coil wire to Grd. With the key
on.

@ the K4 relay coil test for
12v(-) from the Gra/Wht wire
to Bat (+) with key on.

No

Before testing the drive pedal
sensor R2 follow the
instructions located in the
programmable control
options section to
synchronize the pedal’s
neutral dead band
adjustment. Test the drive
pedal sensor R2 (5K Ohms)
and wiring harness circuit.
Does the sensor test good ?

page

Yes

No

No

Test electrical items
below

•CB5 10A breaker

•Pink & Org/Grn
ignition wiring
continuity.

•12V power to
ignition switch &
circuit functions of
start & ignition
terminals.

Repair and replace
as needed.

Repair or replace the
defective R2 drive
pedal sensor.

See: Note A

Yes

Substitute a new A2 control
box assembly.

See: Note A

Note A: Any time the machines hydrostat mounted neutral position sensor is replaced or the
hydrostat linkage adjusted its neutral position must be re-programmed. Also any time the A2
control box is replaced it must be re-programmed. See the programming options section in this
manual for instructions.

24 - FORM NO. 56043129 - SR 1900

ENGINE SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

GM 1.6L 4 cylinder engine will crank but not start

Part A:

Note 1: Check for 12V’s at the CB5 ignition circuit breaker 10A. If no input voltage @ the
Orn/Grn wire repair or replace wiring or key switch. Note 2: Check the fuel supply (empty
tank). Note 3: Check the condition of the spark plugs, replace if needed.

Check the engine’s ECM for
any DTC (diagnostic test
codes) two methods.

• Check for any active codes
with a computer using the
GCP diagnostic software.

• Using a short piece of wire
jump the engines diagnostic
connector (pins #1 & #4).
See the engine section in
this manual for instructions.

Engine will crank but not

start

Yes

No

No

Check the continuity of all the fuses
listed below, location engine fuse
box.

•F1 5A VSW

•F2 20A ECM

•F4 15A Ignition

•F5 15A fuel pump (gasoline only)

Replace defective fuses

Engine still will not start

Yes

Ignition coil testing

Using a spark plug tester check for
spark @ each cylinder.

See the 1.6L Tier 2 Engine Service
Manual (form # PSIP6LPFI-A) &
look-up the specific (DTC) and use
the T.S. chart for it to fix the
problem.

No spark all cylinders; W/key in the on position test (probe) for 12V @ the B+ pink/Grn wire @
the coil pack to Grd. If 0 V’s repair wire to its power source F4 fuse. Still no start ?

With the engine cranking test for 1.5V
(Aprox.) @ each B- coil pack wires Yel &
Yel/Red to B+.

1. Test resistance of both primary coil
pack windings. Specification is
108K Ohms (plus or minus 15%)

2. Test resistance of both secondary
coil pack windings. Specification is
5K Ohms (plus or minus 15%) Do
both test ok ?

Yes

T.S. continued next page, see
additional system checks

Repair B- coil wire(s) to ECM. Still no
voltage signal substitute a good ECM.

Engine still will not start ?

Replace the ignition coil pack.

Troubleshooting continued on next page,
see additional system checks

Yes

Yes

FORM NO. 56043129 - SR 1900 - 25

Troubleshooting Guide

ENGINE SYSTEM
TROUBLESHOOTING GUIDE

Symptom

GM 1.6L 4 cylinder engine will crank but not start

Part B:

Note 1: Check for 12V’s at the CB5 ignition circuit breaker 10A. If no input voltage @ the
Orn/Grn wire repair or replace wiring or key switch. Note 2: Check the fuel supply (empty
tank). Note 3: Check the condition of the spark plugs, replace if needed.

Follow the preliminary system checks listed below for engine cranks but does not start

Fuel System Checks LP

• Check for air intake system leakage between the mixer and throttle body.

• Verify proper operation of the low pressure lock-off solenoid valve.

Troubleshooting continued

from previous page

• Check the fuel system pressure. Refer to the LPG fuel system diagnosis for instructions &
Specification.

• Check for proper mixer air valve operation. Note the air valve must vibrate back & forth when
cranking. No vibration look for an intake system leak. Example: The block-off injector plugs
loose or missing.

• Reference the 1.6L tier 2 engine service manual and follow the LPG system diagnosis.

Fuel System Checks for Gasoline

• Check fuel pump electrical circuit, fuel pump pressure and fuel rail pressure.

• Check electrical connections at the fuel injection solenoids.

• Check for air intake system leakage between the throttle body & intake manifold sealing
surfaces. Also any vacuum hoses for splits, kinks and proper connections

• Reference the 1.6L tier 2 engine service manual and follow the gasoline system diagnosis.

Sensor Checks

• Check the TMAP sensor.

• Check the magnetic pickup sensor (RPM).

Miscellaneous Electrical and Visual Checks

•Check engine harness wiring for proper connections, pinches or cuts.

•Check the ECM & engine ground for: tight clean connection, size and proper location.

•Check spark plug wires for: cracking/hardness, tight connections, proper routing & firing order.

•Check thoroughly for any type of a leak or restriction. Examples: Intake filter blocked, exhaust
restriction @ muffler (Cat), a leaking exhaust manifold etc.

26 - FORM NO. 56043129 - SR 1900

ENGINE SYSTEM

Troubleshooting Guide

Symptom

TROUBLESHOOTING GUIDE

4 cylinder 1.6 GM engine will not run at high speed

Note: With the engine running at idle press the engine speed switch to activate the high speed
engine function..

1.6 GM engine will not
run at high speed

Press the speed select
switch on the operator
panel. Cycling it On &
Off test for 12V @ the
engine ECM pin# 51
wire Gra/Blu to Battery
Grnd.

• 0 volts engine will

only run @ idle.

• 12 volts engine will

run @ high speed

Is there 12V @ the
ECM throttle input but
no H.S. engine
operation?

No

Test the continuity of
the throttle input wire
Gra/Blu from the ECM
to the A2 control box.
Repair if faulty .Does
engine run @ high
speed ?

No

Test the speed SW.
input to the A2 control
box by cycling it On &
Off, checking the (*)
ribbon connector
ground input
(continuity) pins J3-1 &
J3-4.

If speed switch checks
open or closed all the
time replace the
membrane switch
panel assembly.

Does speed SW test
ok?

Yes

Substitute a good
known working ECM if
engine runs properly
@ both idle & high
speed replace ECM.

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

Yes

Substitute a good
known working A2
control box if engine
runs properly @ both
idle & high speed
replace A2 control box.

FORM NO. 56043129 - SR 1900 - 27

Troubleshooting Guide

ENGINE SYSTEM
TROUBLESHOOTING GUIDE

Symptom

Part1: Diesel engine will crank but not start

Note1: Always use (activate) the glow plugs circuit to start an engine that is not up to its
operating temperature.
Note 2:Before troubleshooting inspect the 10A CB5 circuit breaker.

Glow plug circuit T.S.

Check voltage @ each
glow plug terminal B+ to
Battery ground. Is the
reading close to battery
voltage ?

Yes

Test each glow plug
for an open circuit. The
resistance spec is .9
Ohms. Do any of the
glow plugs test open ?

Fuel System T.S.

Is the fuel tank empty?

Yes

Add fuel & air bleed
the fuel system.

Loosen air vent on fuel
filter then next @ the
fuel injection pump
w/engine cranking, but
bleed separately.

Does engine start ?

• See part #2

Governor/fuel control
actuator
troubleshooting.

No

Yes

No

Test for open circuits in the
Pos.(+) feed wire and glow
plug key switch circuit.
Repair or replace defective
parts.

Replace the open
defective glow plug(s).

With the engine
cranking test for 12V
@ the fuel pump.

Does fuel pump run

Remove fuel line to
injector pump, crank
engine , is fuel
pumping?

Yes

Loosen injector line
@ injector, crank
engine, check for
fuel.

No

With the engine cranking
test for 12V (+) @ oil
pressure SW S28,
Gra/Brn wire to Bat. Grd.

Yes

Test fuel pump B­Ground wiring & repair

Replace defective fuel
pump

No

Test the key SW
accessory output &
circuit wiring to the Com
terminal @ S28. If no
voltage repair or replace
bad parts. If voltage input
is OK replace the oil
pressure switch (S28)

• See Kubota engine

Service manual check
engine compression,
injector pump, fuel
quality etc. as further
causes.

28 - FORM NO. 56043129 - SR 1900

Troubleshooting Guide

ENGINE SYSTEM
TROUBLESHOOTING GUIDE

Symptom

Part 2: Diesel engine will crank but not start

Note: Always use (activate) the glow plugs circuit to start an engine that is not up to its operating
temperature. Note 1: Before troubleshooting inspect the 10A CB5 circuit breaker, replace if defective.
Note 2: The engine uses a low oil pressure shut down feature. Check to see that the engine oil fill
level is correct. As no oil will prevent the engine from starting, for its own protection (5PSI) is min.
pressure to open switch S28 for engine to start.

Diesel engine will crank but not

start Governor/ Actuator T.S.

No

W/engine cranking test
for 12V’s @ the governor
speed select #2 terminal.
Is there 12V’s ?

Yes

Replace oil pressure SW
& reconnect all wiring
does engine run? If yes
the oil pressure switch
was defective.

Re-test w/engine
cranking. Is there
12V’s @ speed select
#2 terminal?

Yes

No

Test for 12V @ the Apec

No

3000 governor battery
input (Pos & Neg. )
terminals.

Yes

1. Remove the (2) screws that fasten the fuel control actuator then
remove from injector pump. 2. Try starting the engine it should start with
actuator removed. Important operator note: When engine starts it could
run @ full speed. To stop engine pull DN on the engine stop lever to
prevent over revving damage to engine. Does engine start?

Test the fuel control actuator for an open (spec is 3.5 Ohms). If
defective replace. Reinstall the actuator. Does engine start?

Remove the governor magnetic pickup sensor inspect for damage &
also that the pickup is installed with the correct clearance. Thread
sensor in until it makes contact with the flywheel then back it out a ½
turn. Does engine start?

No

Yes

Test the key Sw accessory
output & circuit wiring to
governor. Repair or replace
defective parts.

No

If the S28 oil pressure
switch does not receive
its min. oil pressure to
open (5psi) investigate
further engine oil
pressure problems &
make repairs (*).

Note: (*)Test engine oil
pressure if below min. spec
investigate its cause and
make needed repairs.

Check the governor magnetic pickup voltage signal, w/engine cranking
(approx. 1.2 -3.7 VAC). If no signal substitute a good known magnetic
pickup sensor. Does engine run?

Substitute a good known working governor. Does engine run?

1. See fuel system T.S. (part 1) 2. See engine service manual no start
fuel injector pump system

FORM NO. 56043129 - SR 1900 - 29

ENGINE SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Diesel engine will not run at high speed

Note: With the engine running at idle press the engine speed switch to activate the high speed
engine function.

Diesel engine will not

run at high speed

Test for 12V’s (+) at the
Apec 3000 governor
speed select (1) input
terminal (Gra/Blu) to
battery (-) Grd.

Yes

Test the governor
controller actuator
output voltage, wire
colors Wht & Wht/Blk.
@ idle approx. 4.35 V
@ High speed 5.10 V.
Is there a voltage
increase from idle to
HS with a load?

Yes

Press on & off the
engine speed switch,
check for continuity @

No No

No

ribbon connector (*)
pins J3-1 & J3-2 on the
A2 control box
assembly.

Yes

Substitute a good
known working
governor if engine
runs properly @
both idle & HS
replace governor.

Repair or replace the
defective Gra/Blu wire.

Ribbon pin’s
test open.
Replace the
touch pad
switch panel.

Check for
12V’s (+) @
the A2 control
box output pin
J1-17
(Gra/Blu) to
Bat (-). Grd.

Yes

No

Substitute a good
known working
actuator if engine runs
properly @ both idle &
HS replace actuator.

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

30 - FORM NO. 56043129 - SR 1900

Replace the
A2 control box
assembly.

WHEEL DRIVE SYSTEM

Hydraulic Wheel Drive System

Troubleshooting Check List

Symptom Possible Cause

Wheel drive functions sluggish or slow • Engine not operating in high-speed setting or engine speed is too

slow (2400 RPM).

• Air in hydraulic uid (loose ttings).

• Propulsion pump inlet restriction (cavitation of hydraulic uid).

• Worn drive wheel motor (*test working pressure & wheel drive
speed).

Wheel drive in one direction only • Inspect propulsion pump relief valves for:

A. Debris that allows valve seat to be held open,
B. Damaged or weak valve spring,
C. Valve unloading pressure setting too low for application.

No wheel drive in either direction • Check that pump bypass valve (tow valve) is in correct position.

• Check connection of foot pedal linkage (cable assembly) to

propulsion pump arm.

• Worn propulsion pump (*test output oil volume with a ow
meter).

• Defective propulsion pump charge circuit. Test its relief valve
pressure setting (65-100 psi).

• Worn or damaged wheel drive motor

No hydraulic system functions drive or accessory • Check for a damaged coupling connection from the engine to the

pump shaft input.

*Note: See in the hydraulic specication manual section, tables that list all the individual system component values (pressures, ows,
RPMs etc).

FORM NO. 56043129 - SR 1900 - 31

STEERING SYSTEM
STEERING SYSTEM TROUBLESHOOTING OVERVIEW

See Figure 1. A hydraulic steering unit, with the steering wheel mounted to it, controls the steer cylinder. The steering unit runs off the auxiliary
pump assembly. The oil ows through a priority divider built into the manifold block assembly that divides the pump output and reduces the oil ow
to 2.0 GPM for the steering system. There is a check valve built into the steering unit that allows for manual steering if there is no hydraulic oil ow
to the unit. The relief valve for the steering system is located in the steering unit and is set to open at 1100 PSI.

FIGURE 1

Steering System Hydraulic Diagram

TROUBLESHOOTING GUIDE

Problem Possible cause

Slow steering, hard steering or loss of Priority ow divider not providing 2.0 GPM.
Power assist.

1100 PSI relief valve open or

malfunctioning.

Steering wandering. Loose or leaking cylinder piston packing.

Steering control unit worn.

Steering wheel turns freely Problem with steering column

without moving wheel. Shaft or spline.

Steering binding. Steer cylinder loose.

32 - FORM NO. 56043129 - SR 1900

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Main broom motor will not run

Part A: Electrical Control Circuit

Note 1: Do all testing with the engine running at high speed, the main broom lowered (sweep
position) and the drive pedal activated (machine moving).
Note 2: The main broom magnetic switch S2 must be open and also the hopper interlock
switch S4 closed, for the main broom system (motors) to run.

Main broom motor will not

Run

1. Complete the above

2. Back probe the S2/L2

Check S2 solenoid coil
resistance (Spec. 9 Ohms).

See hydraulic side broom
motor will not turn
troubleshooting section B

operator inputs to turn
on main broom motor.

main broom solenoid
coil wires (+Vio &
Grn/Blk) should read
12V’s

Yes

No

Yes

No

Yes

No

Check S2 coil wiring
continuity, repair if faulty

Is there 12V’s at the S2 coil?

Check the adjustment &
operation of the S2 magnetic
broom SW. Check SW
continuity it must test open w/
broom lever lowered.

Replace the S2
solenoid coil.

Substitute a new
A2 control box
assy. Does motor
run ?

Yes

No

No

No

Clean metal
from SW or
replace shorted
SW. Does motor
run ?

FORM NO. 56043129 - SR 1900 - 33

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Main broom motor will not run

Part B: Hydraulic Load Circuit

Note 1: Do all testing with the engine running at high speed, the main broom lowered (sweep
position) and the drive pedal activated (machine moving).
Note 2: The main broom magnetic switch S2 must be open and also the hopper interlock
switch S4 closed, for the main broom system (motors) to run.

Main broom motor

will not run

Inspect the main
broom motor drive
lug and sweeping
broom inserts for
mechanical damage

No

Yes

Make repairs to
damaged parts.

Does the main
broom motor run
(turn) ?

Remove and disassemble

• L2 main broom motor valve
cartridge

• Inspect, clean and reinstall

Does the motor run ?

Replace the
defective L2
main broom

NoNo

control valve
cartridge.
Does the motor
run ?

No

Replace the
main broom
motor

34 - FORM NO. 56043129 - SR 1900

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Side broom motor(s) will not run

Part A: Electrical Control Circuit

Note 1: Do all testing with the engine running at high speed, the main broom lowered (sweep
position) and the drive pedal activated (machine moving). When the above steps are
completed the side broom(s) will lower automatically and turn ON (rotate).
Note 2: By pressing the control panel side broom ON/OFF switch during sweeping the side
broom will be raised and turned OFF.

Side broom motor(s) will not

Run

1. Complete the above
operator inputs to turn
on side broom
motor(s)

2. Back probe the S3
side broom solenoid
coil wires (+Vio &
Brn/Blk) should read
12V’s

Yes

Check S3 coil resistance

Spec. 9 Ohms

See hydraulic side broom
motor will not turn
troubleshooting section B

No

Yes

No

Yes

No

Check S3 coil wiring
continuity, repair if faulty

Is there 12V’s at the S3 coil ?

Press & hold side broom on
(Lower) & off (raise) SW.
Check for continuity @ the
ribbon connector (*) for pins
J3-1 & J3-9 on the A2 control
box.

Replace the S3
solenoid coil.

Replace the A2
control box assy.
Do motor(s) runs ?

Yes

No

No

Ribbon pins test
open replace the
touch pad switch
panel

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

FORM NO. 56043129 - SR 1900 - 35

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Side broom motor(s) will not run

Part B: Hydraulic Load Circuit

Note 1: Do all testing with the engine running at high speed, the main broom lowered (sweep
position) and the drive pedal activated (machine moving). When the above steps are
completed the side broom(s) will lower automatically and turn ON (rotate).

Note 2: By pressing the control panel side broom ON/OFF switch during sweeping the side
broom will be raised and turned OFF.

Side broom motor will not run

Remove the side broom L3
valve cartridge

•Inspect, clean and reinstall

Does the motor run ?

*Substitute valve cartridge numbers 3 & 7 they are the same and can be swapped to
help troubleshoot the system.

No No

Substitute* or
replace the
defective L3 side
broom valve
cartridge.
Does the motor
run ?

Replace the
failed side
broom motor.

36 - FORM NO. 56043129 - SR 1900

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Side broom(s) will not raise or lower.

Mechanical and Hydraulic functions

Note 1: Do all testing with the engine running at high speed, the main broom lowered (sweep
position) and the drive pedal activated (machine moving).
Note 2: The main broom magnetic switch S2 must be open and also the hopper interlock
switch S4 closed. for the main broom system (motors) to run. Operating the main broom will
automatically lower the side brooms. Press the side broom off button or raise the main broom
lever to raise the side brooms.

Side Broom(s) will not Raise

or Lower

Mechanical & Visual Checks

Inspect for possible
mechanical binding of:

• Side broom motor mount &
lift arm linkage damaged.

• Side broom lift cylinder rod
bent, rod oil seal leakage.

Hydraulic Checks

Possible internal blockage of
the side broom hydraulic
circuit oil path. * Remove,
Inspect & clean manifold
circuit components & hoses.

• @ port D the pilot check
valve and the pilot valve
cartridge.

• @ port F the L3 valve
cartridge, oil return to tank
circuit.

• Blockage @ Side broom
cylinder hose inlet & outlet
fittings

* Note: See hydraulic system manual section for system specifications and
troubleshooting information.

FORM NO. 56043129 - SR 1900 - 37

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Dust control (impellor) motor will not run in the wand state

Part A: Electrical Control Circuit

Note: Do all testing with the engine running at high speed and the dust control switch pressed
(activated).

Dust control motor will

not run

Press (activate) the dust

control switch

Does it’s indicator light

come ON ?

Yes

Back probe the S4

1. Back probe the S9
impellor motor solenoid

hopper solenoid coil

coil wires (+Vio &

wires (+Vio &

Brn/Yel), should read

Yel/Grn) should

12V’s

read 12V’s

Check S9 coil resistance

Spec. 9 Ohms

No

No

Yes

No

Yes

Press & hold dust control SW.
Check for continuity @ the
ribbon connector (*) for pins
J3-1 & J3-10 on the A2 control
box.

Yes

Check S4 coil wiring
continuity, repair if
faulty
Is there 12V’s at the
S4 coil ?

Replace the S9
solenoid coil.

No

Ribbon pins test
open replace the
touch pad switch
panel

See hydraulic dust control
motor troubleshooting
section B

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs

38 - FORM NO. 56043129 - SR 1900

Replace the A2
control box assy.
Does the dust
control motor run ?

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Dust control (impellor) motor will not run in the wand state

Part B: Hydraulic Load Circuit
Note: Do all testing with the engine running at high speed and the dust control switch pressed
(activated).

Dust control motor

will not run

Remove and disassemble

•L4 dust control motor valve
cartridge

•Inspect, clean and reinstall

Does the motor run ?

*Substitute valve cartridge numbers 1, 2 & 4 they are the same and can be swapped to
help troubleshoot the system.

No

Substitute* or
replace the
defective L4 dust
control valve
cartridge.
Does the motor
run ?

No

Replace the dust
control (impellor)
motor.

FORM NO. 56043129 - SR 1900 - 39

Troubleshooting Guide

SWEEPING SYSTEM
TROUBLESHOOTING GUIDE

Symptom

Shaker motor will not run

Part A: Electrical Control Circuit

Note: Do all testing with the key switch ON, then press the control panel shaker switch to
activate turn on the shaker motor (shaker runs for approximately 15 seconds).

Shaker motor
will not run

Test for 12V’s @
the K3 shaker
motor relay coil,
wires (+) Vio &
(-) Yel/Red.

Yes

Check K3 relay
coil wiring
continuity (Vio &

No No No

Yel/Red), repair
if faulty
Is there 12V’s at
the K3 coil ?

Replace the A2
control box assy.
Does the shaker
motor run ?

Test for Neg.
(-)12V’s@
the K3
Yel/red wire
to Bat (+).

Yes

Press & hold
shaker motor
switch and
check for
continuity @
the ribbon
connector (*)
for pins J3-1 &
J3-11 on the
A2 control box.

No

See hydraulic shaker motor
troubleshooting section B

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

40 - FORM NO. 56043129 - SR 1900

Ribbon pins test
open replace the
touch pad switch
panel

SWEEPING SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Shaker motor will not run

Part B: Electrical Load Circuit

Note 1: Do all testing with the key switch ON, then press the control panel shaker switch to
activate turn on the shaker motor (shaker runs for approximately 15 seconds).

Shaker motor will not run

Test for 12V’s @ the M2
shaker motor wires
(+ Blu/Grn & - Blk).

Yes

Repair or replace the M2
shaker motor.

Test for (+)12V’s

No No

@ the K3 Vio wire

to battery ground.

Do you have

12V’s?

Yes

Test for (+)12V’s
@ the K3 Blu/Grn

wire to battery

ground. Do you

have 12V’s?

Yes

On the (+) Blu/Grn
& Wht pigtail & (-)
blk M2 shaker
wires check for an
open circuit.
Repair or replace
the defective wire

No

Test continuity of the

CB4 (20A) circuit

breaker & its wiring.

Repair or replace

defective parts.

Replace the
defective K3 shaker
motor relay

FORM NO. 56043129 - SR 1900 - 41

HOPPER SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Hopper will not raise

Part A: Electrical Control Circuit

Note: Do all testing with the engine running at high speed and the hopper raise (UP) switch
pressed and held.

Hopper will not raise

1. Press & hold hopper
raise switch

2. Back probe the S5
hopper solenoid coil
wires (+Vio & Red/Gry)
should read 12V’s

Yes

Check S5 coil resistance

•Spec. 9 Ohms

Yes

See hydraulic hopper raise
troubleshooting section B

Check S5 coil wiring
continuity, repair if faulty

Is there 12V’s at the S5 coil ?

Yes

Replace the S5
solenoid coil. Does
the hopper raise?

No

Replace the A2
control box assy.
Does the hopper
raise?

No

Press & hold hopper raise SW.
Check for continuity @ the
ribbon connector (*) for pins
J3-1 & J3-6 on the A2 control
box.

Yes

No

Ribbon pins test
open replace the
touch pad switch
panel.

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

42 - FORM NO. 56043129 - SR 1900

HOPPER SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Hopper will not raise

Part B: Hydraulic Load Circuit

Note: Do all testing with the engine running at high speed and the hopper raise (UP) switch
pressed and held.

Hopper will not raise

Is the hopper over
loaded?

Weight Capacity is
1000 Lbs

Yes

Remove the main
broom then empty the
hopper by shoveling
debris out of the dump
door opening. Does
the hopper raise?

Inspect for possible
mechanical binding of:

• Hopper body & machine

frame interference

• Hopper lift linkage &

bushings

No

No

Remove and
disassemble

• L9 hopper

lower valve
cartridge

•Inspect, clean

and reinstall

No

Repair or
replace
damaged parts.
Does the hopper
raise?

No

Replace the
defective L5
hopper
cylinder valve
cartridge
Does the
hopper raise?

No

Replace the
hydraulic
hopper
cylinder

FORM NO. 56043129 - SR 1900 - 43

HOPPER SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Hopper will not lower

Part A: Electrical Control Circuit

Note: Do all testing with the engine running at high speed and the hopper lower (DN) switch
pressed and held.

Hopper will not lower

1. Press & hold hopper

lower switch

2. Back probe the S9

hopper solenoid coil
wires (+Vio & Yel/Grn)
should read 12V’s

Check S9 coil resistance

Spec. 9 Ohms

See hydraulic hopper raise
troubleshooting section B

Yes

Yes

No

No

Check S9 coil wiring
continuity, repair if faulty

Is there 12V’s at the S9 coil ?

Yes

Replace the S9
solenoid coil.

Replace the A2
control box assy..
Does the hopper
lower ?

No

Press & hold hopper lower SW.
Check for continuity @ the
ribbon connector (*) for pins
J3-1 & J3-8 on the A2 control
box.

Yes

No

Ribbon pins test
open replace the
touch pad switch
panel

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

44 - FORM NO. 56043129 - SR 1900

HOPPER SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Hopper will not lower

Part B: Hydraulic Load Circuit

Note: Do all testing with the engine running at high speed and the hopper lower (DN) switch
pressed and held.

Hopper will not lower

Inspect for
possible
mechanical
binding of:

•Hopper linkage

•Hopper Cylinder

No

Repair or replace
damaged parts.

Does the hopper
lower?

No

Remove and disassemble

• L9 hopper lower valve
cartridge

•Inspect, clean and reinstall

Does the hopper lower?

WARNING!

Support the hopper securely with stands
or an overhead supported lifting strap to
prevent the hopper from lowering when
removing either of the L5 & L9 hopper
system valve cartridges.

No

Replace the
defective L9
hopper cylinder
valve cartridge.
Does the hopper
lower?

No

Replace the
hydraulic hopper
cylinder

Note: The hopper can be lowered with the engine turned off just by pressing and holding the
hopper lower switch.

FORM NO. 56043129 - SR 1900 - 45

HOPPER SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Hopper dump door will not open

Part A: Electrical Control Circuit

Note: Do all testing with the engine running at high speed and the hopper dump door open
switch pressed and held.

Hopper dump door will not

1. Press & hold hopper
open dump door
Switch

2. Back probe the S1
dump door solenoid
coil wires (+Vio &
Blu/Wht) should read
12V’s

Check S1 coil resistance

Spec. 9 Ohms

open

Yes

Yes

No

Check S1 coil wiring
continuity, repair if faulty

Is there 12V’s at the S1 coil?

Yes

No

Replace the S1
solenoid coil.

No

Press & hold hopper door open
SW. Check for continuity @ the
ribbon connector (*) for pins J3-1
& J3-5 on the A2 control box.

Yes

No

See hydraulic hopper raise
troubleshooting section B

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

46 - FORM NO. 56043129 - SR 1900

Replace the A2
control box assy.

Ribbon pins test
open replace the
touch pad switch
panel

HOPPER SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Hopper dump door will not close

Part A: Electrical Control Circuit

Note: Do all testing with the engine running at high speed and the hopper dump door close
switch pressed and held.

Hopper dump door will not

close

1. Press & hold hopper
dump door close
switch

2. Back probe the S7
dump door solenoid
coil wires (+Vio &
Blk/Wht) should read
12V’s

Yes

Check S7 coil resistance

Spec. 9 Ohms

Yes

See hydraulic hopper raise
troubleshooting section B

No

No

Check S7 coil wiring
continuity, repair if faulty

Is there 12V’s at the S7 coil?

Yes

Replace the S7
solenoid coil. Does
the dump door
close?

Replace the A2
control box assy.

Press & hold hopper door open
SW. Check for continuity @ the
(*) ribbon connector for pins J3-1
& J3-7 on the A2 control box.

No

Yes

No

No

Ribbon pins test
open replace the
touch pad switch
panel

* Ribbon connector see Electrical System Figure 1 for detail pin call-outs.

FORM NO. 56043129 - SR 1900 - 47

HOPPER SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Hopper dump door will not operate open or close

Part B: Hydraulic Load Circuit

Note: To test the engine must be running at high speed and the hopper door (open/close)
switches pressed and held.

Dump door will not

operate open or close

Inspect for possible
mechanical binding at:

•Dump door & hopper
frame opening

•Dump door cylinder &
linkage

Repair or replace
damaged parts. Does
the door function ?

*Note: The engine must be shut off to remove and disassemble any valve
cartridge.

Yes

No

* Remove &
disassemble the:

•L1 dump door open
or

•L7 dump door close

Cartridge valve

•Inspect, clean and

reinstall
Does the door
function?

No

No

Replace the
defective

•L1 door open
or

• L7 door close

cartridge valve.
Does the door
function ?

No

Replace the
hydraulic
hopper door
cylinder

48 - FORM NO. 56043129 - SR 1900

SOLUTION SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Misting Pump will not Work

Part A: Electrical Control Circuit

Note 1: Do all testing with the key switch ON, misting solution tank not empty, main broom
lever lowered, drive pedal activated in Fwd or Rev and the M4 misting pump’s control switch
S26 turned ON.
Note 2: Before T.S.check the continuity of the pump’s circuit breaker CB 7 (10A), reset or
replace if defective.

Misting Pump will not work

Test for 12V’s @ the K6
misting pump coil relay wires
(+ Blu/Orn & - Brn/Blk).

Yes

Test for 12V’s Neg. @ the K6
Brn/Blk wire to battery (+)
Pos. Do you have 12V’s ?

No

Yes

Test for (+)12V’s @
the K6 Blu/org wire
to battery ground. Do
you have 12V’s

Test continuity of
the Brn/Blk wire.

Yes

No

Test continuity of the
S26 misting pump
relay switch. Does
switch test good ?

Test for 12V’s @ the
S26 SW, Vio feed
wire to battery GRD

No

Repair or
replace Vio
wire

Repair or
replace the
defective
Brn/blk wire

No

See section B electrical load
circuit for misting pump

Replace the A2
control box Assy.

Replace the S26
misting pump
relay switch

FORM NO. 56043129 - SR 1900 - 49

SOLUTION SYSTEM

Troubleshooting Guide

TROUBLESHOOTING GUIDE

Symptom

Misting pump will not work

Part B: Electrical Load Circuit

Note 1: Do all testing with the key switch ON, misting solution tank not empty, main broom
lever lowered, drive pedal activated in Fwd or Rev and the M4 misting pump’s control switch
S26 turned ON.
Note 2: Before T.S.check the continuity of the pump’s circuit breaker CB 7 (10A), reset or
replace if defective.
Note 3: Check for plugged misting nozzles clean if needed.

Misting pump will not

Test for 12V’s @ the M4
misting pump wires (+
Gra/Orn & - Blk).

Repair or replace the M4
misting pump.

work

Yes

No

Test for (+)12V’s

@ the K6 Blu wire

to battery ground.

Do you have

12V’s?

Yes

Test for (+)12V’s

@ the K6 Gra/Orn

wire to battery

ground. Do you

have 12V’s?

Yes

No

No

Test continuity of the

CB7(10A) circuit

breaker & its wiring.

Repair or replace

defective parts.

Replace the
defective K6 misting
pump relay

50 - FORM NO. 56043129 - SR 1900

On the (+) Gra/Orn
& (-) Blk M4 pump
wires check for an
open circuit.
Repair or replace
the defective wire

ENGINE SYSTEM
ENGINE SPECIFICATIONS

Kubota V1505-B-1

Engine Type Vertical, water cooled, 4-cycle diesel engine

Displacement 91.41 cubic inches (1498cc)
Fuel Diesel fuel No. 2-D (ASTM D975)
Injection Pump Bosch MD type mini pump
Engine ring order 1-3-4-2
Injection Timing (before TDC) 19 deg.
Oil Capacity 5.5 Qts. (5.2L) / Oil Pan depth 4.9” (12.4 cm)
Cooling Capacity 8 Qts. (7.5L)

Horsepower 46 gross @2800 RPM,41 Int @2400 RPM
Idle Speeds Low idle 1200 RPM, High idle 2400 RPM

*NOTE: Reference the following engine manufacturer’s Service and Operators manuals for more detailed engine specications and service data.

• Kubota Operator’s Manual P.N. 16622-8916-3

• Kubota Workshop Manual P.N. 97897-01640

ENGINE OIL (DIESEL ENGINE)

Engine oil should be MIL-L-2104C or have properties of API classication CD grades or higher.
Use the information below to choose the proper engine oil for the temperature where the machine is operated most of the time.

• Above 77°F (25°C) SAE 30 or SAE 10W-30

SAE 10W-40

• 32°-77°F (0-25°C) SAE 20 or SAE 10W-30

SAE 10W-40

• Below 32°F (0°C) SAE 10W or SAE 10W-30

SAE 10W-40

Oil Filter: Use Nilsk P.N. 56482659
200 HRS: Change oil and replace oil lter

ENGINE FUEL FILTER (DIESEL)

400 HRS: Replace fuel lter cartridge (location before injector pump). Use Nilsk P.N. 56419086.
400 HRS: Replace fuel lter at electronic fuel pump.

FORM NO. 56043129 - SR 1900 - 51

ENGINE SYSTEM

1.6literGMEngineSpecications

Engine type Liquid Cooled, 4 Cylinder, Single Overhead cam
Distributor-less
Displacement 98 Cubic inches (1600 cc)

Fuel Gasoline 87 Octane Unleaded Gasoline with no more than

10% Ethanol by volume
Fuel LP 33 Lbs. Tank Size (liquid withdrawal system)
Spark Plugs AC DELCO PN 93206675, Gap .032 -.035 (.8 mm-.9 mm)
Spark Plug wiring Match Numbered Coil Position to Spark Plug
Number (front to rear 1, 2, 3 & 4)

Engine Firing Order 1-3-4-2

Ignition Timing Fixed (controlled by engine ECM)
Engine Rotation CCW (ywheel end)
Valve lifters Hydraulic
Oil Capacity 3.7 qts. (3.5L) with Oil Filter
Oil Pressure 21 PSI (minimum with engine hot at idle)
Cooling System 3.5 qts. (Engine Only)

ROUTINE ENGINE MAINTENANCE

• Keep the fuel tank lled. This helps to reduce condensation and moisture entering the fuel system (gasoline).

• Make daily checks of the engine oil and coolant levels.

• Repair any oil or coolant leaks immediately.

• Check condition of battery (water level) and cables weekly.

• Keep the engine air lter clean.

• Observe the engine coolant temperature gauge frequently.

• Observe the engine oil pressure gauge frequently.

• Check the voltmeter and charging system.

52 - FORM NO. 56043129 - SR 1900

ENGINE SYSTEM
CHECK ENGINE LIGHT TROUBLESHOOTING FOR 1.6L GM ENGINE

The engine ECM will light (turn on) the dash panel (UU) check engine light if there is a problem associated with the computerized engine control

system.

The following steps explain how to correctly access the engine controller’s fault code outputs.

1 On the operator display panel the engine check light (MIL ) comes on steady will not shut off.
2 Locate the 8 way ECM communication test port, which is a part of the engine wiring harness.
3 Next remove the test port protective cap. See Figure 2. Insert a suitable jumper wire across pin “1” (black/green wire) & pin “4” (orange

wire).

Blink Code Function
Although the DST (Diagnostic Service Tool software) is considered a required tool to access the DTC codes, codes may be retrieved without a laptop

computer using the blink code function. To enable this function follow the steps below:

4 Turn the ignition key to the on position.
5 The system will now enter the self diagnostic blink code mode. Be ready with pen and paper to write down any codes that may be stored.
6 The ECM will ash the MIL indicator with a pause between represented numbers that represent DTC codes. The sequence starts with code

1654. Code 1654 conrms the system has entered the blink code mode. The ECM will ash code 1654 (3) times before displaying the actual
DTC code that may be set.

Example:

One short blink (pause) six short blinks (pause) veshortblinks (pause) fourshortblinks.

• If no DTC codes are found, the ECM will continue to ash 1654 only. This means no stored DTC codes were found.

Protective Cap

FIGURE 2

Communication Port

Jumper across top row at

outside pins ORN & BLK/GRN

Pin #1

Pin #4

Empty

FORM NO. 56043129 - SR 1900 - 53

ENGINE SYSTEM

1.6LDTCCodetoSPN:FMICodeCrossReference

DTC

Code

16 Crank Never Synced at Start 636 8 604 RAM Failure 630 12

91 Fuel Pump Low Voltage 94 4 606 COP Failure 629 31

92 Fuel Pump High Voltage 94 3 642 External 5V Reference Low 1079 4

107 MAP Low Voltage 106 4 643 External 5V Reference High 1079 3

108 MAP High Pressure 106 16 685 Power Relay Open 1485 5

111 IAT Higher Than Expected 1 105 15 686 Power Relay Shorted 1485 4

112 IAT Low Voltage 105 4 687 Power Relay Short to Power 1485 3

113 IAT High Voltage 105 3 1111 Fuel Rev Limit 515 16

116 ECT Higher Than Expected 1 110 15 1112 Spark Rev Limit 515 0

117 ECT Low Voltage 110 4 1151 Closed Loop Multiplier High LPG 520206 0

118 ECT High Voltage 110 3 1152 Closed Loop Multiplier Low LPG 520206 1

121 TPS 1 Lower Than TPS 2 51 1 1155 Closed Loop Multiplier High Gasoline 520204 0

122 TPS 1 Signal Voltage Low 51 4 1156 Closed Loop Multiplier Low Gasoline 520204 1

123 TPS 1 Signal Voltage High 51 3 1161 Adaptive Learn High LPG 520202 0

127 IAT Higher Than Expected 2 105 0 1162 Adaptive Learn Low LPG 520202 1

129 BP Low Pressure 108 1 1165 LPG Cat Monitor

134 EGO 1 Open/Inactive 724 10 1171 LPG Pressure Higher Than Expected 520260 0

154 EGO 2 Open/Inactive 520208 10 1172 LPG Pressure Lower Than Expected 520260 1

171 Adaptive Learn High Gasoline 520200 0 1173 EPR Comm Lost 520260 31

172 Adaptive Learn Low Gasoline 520200 1 1174 EPR Voltage Supply High 520260 3

182 Fuel Temp Gasoline Low Voltage 174 4 1175 EPR Voltage Supply Low 520260 4

183 Fuel Temp Gasoline High Voltage 174 3 1176 EPR Internal Actuator Fault 520260 12

187 Fuel Temp LPG Low Voltage 520240 4 1177 EPR Internal Circuitry Fault 520260 12

188 Fuel Temp LPG High Voltage 520240 3 1178 EPR Internal Comm Fault 520260 12

217 ECT Higher Than Expected 2 110 0 1612 RTI 1 Loss 629 31

219 Max Govern Speed Override 515 15 1613 RTI 2 Loss 629 31

221 TPS 2 Signal Voltage Low 51 0 1614 RTI 3 Loss 629 31

222 TPS 2 Signal Low Voltage 520251 4 1615 A/D Loss 629 31

223 TPS 2 Signal High Voltage 520251 3 1616 Invalid Interupt 629 31

336 Crank Sync Noise 636 2 1626 CAN Tx Failure 639 12

337 Crank Loss 636 4 1627 CAN Rx Failure 639 12

420 Gasoline Cat Monitor 520211 10 1628 CAN Address Conflict Failure 639 13

524 Oil Pressure Low 100 1

562 System Voltage Low 168 17 2112 Unable to Reach Higher TPS 51 7

563 System Voltage High 168 15 2229 BP Pressure High 108 0

601 Flash Checksum Invalid 628 13

Description SPN Code

FMI

Code

DTC

Code

2111 Unable to Reach Lower TPS 51 7

Description SPN Code

520213 10

Code

FMI

54 - FORM NO. 56043129 - SR 1900

ENGINE SYSTEM
MISCELLANEOUS ENGINE SYSTEM INFORMATION

Additional Engine Troubleshooting Symptom

Engine Overheating

Use the checklist below as a guide, to thoroughly check the engine cooling system.

• Check coolant level in overow tank and radiator.

• Inspect and clean radiator and hydraulic oil cooler.

• Check for proper operations of the belt driven engine cooling fan (slippage).

• Check to see that the engine thermostat opens.

• Check for proper operation of water pump.

• Check engine crankcase oil level.

Over Temperature Protection: The GM 1.6L engine will set a diagnostic test code (DTC 116) after 5 sec. at temperatures over 215 °F and a power
derate level one will be enforced. This engine fault will limit the maximum throttle position to 50%. With further overheating the engine will set a
code (DTC 217) after 10-15 sec. at temperatures over 225 °F and the engine will then shut down.

Loss of Oil Pressure Protection: Engine shutdown if oil pressure is only 3-7 PSI.

4 Cylinder Engine G/P/D Speed Settings

Fast Engine Speed 2400 RPM
Idle Engine Speed 1200 RPM

GM 1.6L GASOLINE FUEL SYSTEM DESCRIPTION

This engine is equipped with a fuel injector rail that does not have a pressure regulator. Fuel pressure for this engine is regulated by the engine’s
ECM controlling the fuel pump via pulse width modulation. The ECM receives fuel pressure and temperature feedback from the gasoline fuel sensor
manifold and uses this information to control the ground side of the fuel pump. Fuel pressure is regulated by the ECM pulse width modulating (PWM)
the fuel pump. The fuel pressure and temperature sensor manifold has a return or “bleed” circuit that is comprised of a .020” orice and a 6 psi check
valve that connects back to the equipment fuel tank. This circuit is used to bleed off any vapor that develops in the line and returns a small amount
of fuel to the tank. The fuel comes from the fuel tank and passes through the inline fuel pump. Fuel exits the fuel pump, passes through the lter and
then enters the fuel pressure and temperature manifold assembly. Fuel ows through the feed circuit and is delivered to the fuel injector rail. Fuel
that enters the bleed circuits through the by-pass valve in the manifold is returned to the fuel tank.

FORM NO. 56043129 - SR 1900 - 55

ENGINE SYSTEM

FIGURE 3

FIGURE 4

1

Cylinders

Firing Order

1, 3, 4, 2

Coil Pack

1-4

2

3

4

2-3

2

1

4

3

56 - FORM NO. 56043129 - SR 1900

HYDRAULIC SYSTEM
HYDRAULIC SYSTEM TROUBLESHOOTING

Accurate measurements are the key to troubleshooting a hydraulic system. Once measurements are obtained, they can be compared with specications to analyze
a problem.

To troubleshoot the hydraulic system it is possible to use digital tachometers, ow gauges or pressure gauges. The pressure gauge should have a range of 0 –
3000 PSI (see Figure 2) and have a Parker Diagnostics connector number PD222. The most convenient way to check for oil ow is to check the RPM of the motor
that is performing poorly. Use the chart on the next page to determine the motor RPM, if the motor speed is correct the pump is producing the correct amount of
oil ow. However, this does not mean that, if a motor is running too slow the problem is in the pump.

The following information should be used to check for proper motor RPM, system pressure and relief valve settings. The readings are nominal gures and there
will be variations due to manufacturer tolerances and system oil temperature. If any reading varies greater than 20% there will be a noticeable loss of performance
and should be corrected.

TEST PORT NOMINAL PRESSURE READINGS (see Figure 1)

• Insert pressure gauge (see Figure 1) into the test port.

• Run engine in high throttle position. Allow oil to warm up.

• The bypass pressure is the pressure reading with no motor or cylinder operating.

• The operational pressure is the pressure range the motor or cylinders will operate in.

ENGINE

FIGURE 1

Test port

Note: 100 PSI = 6.9 bar

• A much lower than normal bypass pressure could indicate a gear pump problem.

• If the bypass pressure remains the same after turning the function on, there could be a problem in the control valve or circuit.

• If the operational pressure is within range but the motor speed is too slow the problem could be in the motor.

• If the broom motor Operational PSI reading is above the Bypass PSI but is below the Operational PSI check the broom adjustment and wear.

• Check individual system troubleshooting sections of this manual for additional information.

FIGURE 2

3,000 PSI (207 bar)

cm) 6,000 PSI (414 bar)

Parker Diagnostics PD222

FORM NO. 56043129 - SR 1900 - 57

HYDRAULIC SYSTEM
GENERAL HYDRAULIC SPECIFICATIONS TABLE

Pump&MotorCircuitsforallmodels DISPL in3GPM

Main Broom @ sweep position (Std Broom with a 2.0”

pattern). Wet sweep Bypass (dust control off) & side
broom(s) off.

Dust Control Impeller On, machine high, all systems
running
Dust control Impeller On, machine high, all systems off 161 5.7 2800 8900 1650 2500

1 Side Broom (right) machine high, all systems running 6.1 2.9 2800 130 425 2500
2 Side Brooms machine high, all systems running 6.1 2.9 2800 105 360 2500

Dump Door (open/close time 2 – 3 sec.) nothing else

running

Hopper Lift (raise time 10/11 sec.) Empty 2800 2875
Hopper Lift (lower time 7 sec.) Empty 380
Steering System 4.88 2.0 2800 150 **1100

Auxillary Pump Circuit Engine @ 2400rpms No

systems running (XT1)

Propulsion Pump Circuit
Hydrostatic pump 2.48 25.7 2400 3000

Wheel Motor@ 6.7mph level ground, smooth concrete,

no systems running, full speed forward
Hydrostat Charge 100

* The bypass pressure is the pressure reading with no motor or cylinder operating (ow through).
** Test conditions 70 degrees F, empty hopper, pedal ½ depressed & fully depressed.

Note: Pressure measurements taken at test Port XT1 location output of the accessory pump

2.45 5.7 2800 405 1275 2500

.161 5.7 2800 8900 1800 2500

1.02 10.6 2400 *380 2500

22.8 16.7

RPM

(in)

2800 Open20Close/50

RPM
(out)

Fwd170

Rev 90

PSI

**600 - 700

Relief

PSI

58 - FORM NO. 56043129 - SR 1900

HYDRAULIC SYSTEM

Hydraulic Truth Table

Electrical Solenoid’s energized Status

Solenoid Functions S1 S2 S3 S4 S5 S6 S7 S8 S9

Hopper Raise (UP) X X
Hopper Lower (DN) X

Dump Door Open X
Dump Door Closed X
Main Broom State ON X X
Main /Side Broom State ON X X X
Dust Control ON Wand State

(**)
Dust Control OFF Bypass (*) X

Side Broom Lower X

Side Broom Raise & turn
OFF side broom motor

No Hydraulic Manifold
Functions

Notes:

* Operator sweeping wet debris with the dust control fan (impeller) turned off.
** Operator using vacuum wand option. The dust control fan operates with the machines drive stationary. To vacuum attach the suction hose wand
to the special hopper inlet tting.
*** The S6 solenoid valve assembly bypasses the sweep system components and sends its hydraulic oil ow to tank when S6 is de-energized (0
volts).

System

overloaded

in relief

0V

X X

S6 not

energized

(***)

HYDRAULIC MANIFOLD ASSEMBLY COMPONENT LOCATION KEY

Note: the combined electrical solenoid and hydraulic valve cartridge assembly can be serviced separately.

Item # Component Description & Hydraulic Circuit Function

S1 Solenoid coil & valve cartridge, hopper dump door (open), coil 8 Ohms
S2 Solenoid coil & valve cartridge, main broom System, coil 8 Ohms
S3 Solenoid coil & valve cartridge, side broom system, coil 8 Ohms
S4 Solenoid coil & valve cartridge, dust control (wand state), coil 8 Ohms
S5 Solenoid coil & valve cartridge, hopper lift system (raise), coil 8 Ohms
S6 Solenoid coil & valve cartridge, hydraulic circuit on/off (by-pass), 8 Ohms
S7 Solenoid coil & valve cartridge, hopper Dump door (close), coil 8 Ohms
S8 Solenoid coil & valve cartridge, dust control fan off (by-pass), coil 6 Ohms
S9 Solenoid coil & valve cartridge, hopper lift (close), coil 8 Ohms

Notes: (A) The solenoid coils w/connector S1 – S7 & S9 are identical and can be swapped for (T.S.) troubleshooting. (B) The solenoid coil w/
connector S8 is different only one is used. (C)The valve cartridges for S1, S2 & S4 are identical, S3 & S7 the same and S5 & S9 the same and can
be swapped for T.S. (D)The S6 & S8 valve cartridges are different congurations one of each are only used.

Item # AdditionalHydraulicManifoldComponentsDescriptions

X1 Cartridge, side broom lift cylinder piloted 3/2 directional valve
X2 Cartridge, side broom piloted check valve
X3 Orice (.038 Dia.), hopper raise control
X4 Orice (.086 Dia.), hopper dump door control
X5 Orice (.078 Dia.), hopper lower control
X6 Cartridge, broom system ow divider
X7 Cartridge, steering system ow divider
X8 Check valve, side broom(s)
X9 Cartridge, hopper lift free check

X10 Pressure relief valve (2500 PSI.), manifold block

FORM NO. 56043129 - SR 1900 - 59

lve

HYDRAULIC SYSTEM

S4 Coil

S4 Cartridge

FIGURE 3

Hydraulic Manifold top and bottom views shown

S4

Dust
Control
Valve

X1

X7

X6

X2

Shown with

dashed lines

behind S5

X3

Top view

X5

X4

Adjustment
Screw

Lock-nut

X10

System
Relief Va
2500 PSI

X8

Bottom view

60 - FORM NO. 56043129 - SR 1900

HYDRAULIC SYSTEM
PRESSURE RELIEF VALVE

Instructions for testing and adjusting the main pressure relief valve that is built into the machines hydraulic manifold assembly:

Insert hydraulic test gauge (3000 psi.) to the XT1 test port (location between pump & solenoid manifold).

To check pressure the hydraulic oil must be warm & engine at high speed (2400 RPM).

Activate the hopper lift (raise or lower) to dead head its cylinder to place the pump circuit into an overloaded condition.

CAUTION!

Do not test in the overloaded condition for a long period as this may cause damage (excessive heat build up).

Observe the pressure gauge reading in the overloaded (dead headed) position and adjust accordingly. The hydraulic systems relief
setting is 2500 PSI. for all models. See Figure 3. Loosen lock-nut turn adjustment screw CCW to decrease & CW to increase.

FORM NO. 56043129 - SR 1900 - 61

HYDRAULIC SYSTEM

Hydraulic System 4-Cylinder models

Item Description

1 Steering Control Unit

2 Reservoir Assembly
3 Drive Motor Assembly
4 Side Broom Motor Assembly
5 Side Broom Cylinder Assembly, Right
6 Main Broom Motor Assembly
7 Dust Control Motor Assembly

8 Sleeve, 23 In. Nylon

9 Manifold Assembly
10 Steering Cylinder Assembly

11 Hopper Door Cylinder Assembly
12 Hopper Lift Cylinder Assembly
13 Pump Assembly
14 Filter Assembly

22 Elbow, 90 O-Ring
23 Sleeve Hydraulic Hose
44 Sleeve, 26 In. Nylon
45 Sleeve, 24 In. Nylon
47 Decal, Oil Fill
48 Test Port

62 - FORM NO. 56043129 - SR 1900

HYDRAULIC SYSTEM

Left Hand Side Broom Option

Item Description

Instruction Sheet
1 Left Hand Side Broom Option
2 Side Broom Cylinder Assy, Left

3 Side Broom Motor Assembly
4 Valve Assembly

5 Tee, Union
6 Hose, Hydraulic
7 Tee, Run O-Ring
8 Hose, Hydraulic
9 Hose, Hydraulic

Item Description

10 Hose, Hydraulic
11 Hose, Hydraulic
12 Hose, Hydraulic
13 Hose, Hydraulic
14 Hose, Hydraulic
15 Wire Tie (not shown)

16 Hose Clamp, 1/4 Quadruple
17 Scr, Hex 1/4-20 x 1.75
18 Wsh, Flt SAE 1/4
19 Elbow, 90 W/Nut

FORM NO. 56043129 - SR 1900 - 63

THIS PAGE IS INTENTIONALLY BLANK

64 - FORM NO. 56043129 - SR 1900

FORM NO. 56043129 - SR 1900 - 65

HYDRAULIC SYSTEM

COMPONENT LOCATION

Item Description

1 Drive Motor Assembly
2 Dust Control Motor Assembly
3 Filter Assembly
4 Hopper Door Cylinder
5 Hopper Lift Cylinder
6 Oil Cooler
7 Main Broom Motor Assembly
8 Manifold Assembly
9 Pump Assembly
10 Reservoir Assembly
11 Side Broom Cylinder Assembly, Right
12 Side Broom Motor Assembly
13 Steering Control Unit
14 Steering Cylinder

66 - FORM NO. 56043129 - SR 1900

HYDRAULIC SYSTEM

HYDRAULIC SCHEMATIC

2400
RPM

2.48
CIR

1.02
CIR

22.8
CIR

2500
PSI

2.0
GPM

8.60
GPM

6.1

CIR

2.45
CIR

.161
CIR

TOW
VALVE

3000
PSI

3000
PSI

15 GPM

50 PSI

HOPPER DUMP

1.5x3.75x.75

HOPPER LIFT

2.5x15.125x1.25

SIDE BROOM LIFT

1.00x1.18x.50

A

B

B

A

P

T

L

R

STEERING

4.88 CIR

STEERING

1.75x8.5x.75

1100
PSI

MAIN B ROOM

SIDE BROOM

DUST
CONTROL

DRIVE

.037

S1

S3

S5

S6

S7

S8

25 PSI

A

T1

B C

D

E

F

G

H

J

L

K

M

N

T

P

100
PSI

6.10
CIR

SIDE BROOM LIFT

1.00x1.18x.50

SIDE BROOM

25 PSI

D

E

F

6.10
CIR

SIDE BROOM

SIDE BROOM LIFT

1.00x1.18x.50

DUAL SID

E BROOM OPTION

J1

.086

S9

.078

2.9 GPM

5.7 GPM

S2

1:2

4:1

J1

3:1

25 PSI

XT1

1.02
CIR

AC OPTION

1500
PSI

S4

Optional (Dust Control On Wand State)

FORM NO. 56043129 - SR 1900 - 67

COMPONENT LOCATION

ELECTRICAL SYSTEM

Item Description

A2 Control Box Assembly
BT Battery, 12Vdc
CB1 Circuit Breaker, 70 Amp (Main)
CB2 Circuit Breaker, 20 Amp (Headlights)
CB3 Circuit Breaker, 15 Amp (Starter)
CB4 Circuit Breaker, 20 Amp (Accessories)
CB5 Circuit Breaker, 10 Amp (Ignition)
CB6 Circuit Breaker, 20 Amp (Shaker)
CB7 Circuit Breaker, 15 Amp (Turn signal) (optional)
CB8 Circuit Breaker, 10 Amp (Misting Kit) (optional)
CB9 Circuit Breaker, 40 Amp (Cab) (optional)
H1 Horn
K1 Relay, Horn
K2 Relay, Lights
K3 Relay, Shaker
K4 Relay, Neutral

Item Description

LP1 Head Light, Right
LP2 Head Light, Left
M2 Motor, Shaker
P3 Gauge, Combination
R2 Drive Pedal Sensor, 5K Ohm
R3 Sender, Fuel (not used on LPG models)
S1 Switch, Ignition
S2 Switch, Main Broom
S3 Switch, Low LP Pressure (LPG models only)
S4 Switch, Hopper Interlock

68 - FORM NO. 56043129 - SR 1900

ELECTRICAL SYSTEM

WIRING DIAGRAM 1 of 3

Item Qty Description

A3 Controller
A5 Manifold, Fuel (GM Engine only)

BT Battery, 12Vdc

CB1 Circuit Breaker, 70 Amp, Main
CB2 Circuit Breaker, 20 Amp, Headlights
CB3 Circuit Breaker, 15 Amp, Starter
CB4 Circuit Breaker, 20 Amp, Accessories
CB5 Circuit Breaker, 10 Amp, Ignition
CB6 Circuit Breaker, 20 Amp, Shaker
CB7 Circuit Breaker, 15 Amp (signal lights option)
CB8 Circuit Breaker, 10 Amp (misting pump option)
CB9 Circuit Breaker, 40 Amp (for cab option)

E13 Flasher (optional)

F1 Fuse, 1 Amp

H1 Horn

K1 Relay, Horn
K2 Relay, Lights
K3 Relay, Shaker
K4 Relay, Neutral
K5 Relay, Signal Lights (optional)
K6 Relay, Misting Pump (optional)

LP1 Head Light, Right
LP2 Head Light, Left
LP3 Lamp, Right Front (optional)
LP4 Lamp, Right Rear Signal (optional)
LP5 Lamp, Right Rear Tail/Brake (optional)
LP6 Lamp, Left Front Signal (optional)
LP7 Lamp, Left Rear Signal (optional)
LP8 Lamp, Left Rear Tail/Brake (optional)
LP9 Lamp, Curb (optional)
LP10 Lamp, Trouble (optional)
LP11 Lamp, Rear Work (optional)
LP12 Light, Strobe (optional)

M2 Motor, Shaker
M3 Pump, Fuel
M4 Pump, Misting (optional)

P3 Gauge, Combination

R1 Sender, Oil Pressure
R3 Sender, Fuel (not used on LPG models)

S1 Switch, Ignition
S22 Switch, Brake
S24 Switch (part of LP10)
S25 Switch, Hazard (optional)
S26 Switch, Turn Signal (optional)

YEL/BLK

GRA/BLK

BLK

VIO

WHT/BLK

ORN/GRN

GRN/BLU

RED

RED/GRN

BLK

PINK

GRA/BLK

GRN/YEL

GRA/BLU

GRN/YELGRN/YEL

GRA/BLU

BLK

BLK

GRN/YEL

RED

VIO

VIO

RED ORN

YEL/BLK

GRA/RED

RED

GRN/BLU

PINK

RED YEL/BLK

BLK

BLK

YEL/BLK

BLKYEL/BLK

YEL/BLK BLK

BLK

BLK

WHTBLU/GRN BLK

VIO

BLU/PINK

PINK

TAN

VIO BLK

RED

WHT/YEL BLK

PINK/YEL

VIO

GRN

GRN/YEL

YEL

GRA

YEL

GRA

PINK/YEL

VIO/YEL

GRA

GRN

VIO/YEL

YEL

GRN GRN

VIO/YEL

BLK

BLK

VIO

BLK

BLK

YEL/BLK

RED BLK

BLU/PINK

RED

RED

VIO

GRN/BLK

BLK

BLK

BLK

YEL/BLK

YEL/BLK

VIO/YEL

RED BLU GRA/ORN BLK

PINK PURPLE

BLK/REDBLK/RED

BLK/GRN

GRN/WHT

GRN/RED

WHT/GRN

BLK/GRN

GRN/WHT

GRN/RED

WHT/GRN

TAN/BRN

BLU/BLKRED

BLKGRN/YEL

GRN/YEL

VIO BLK

RED/VIORED

BLK

GRN/YEL BLK

BLKVIO/GRA

VIO/GRA

BLK

YEL

BLK

RED/WHT

WHT

WHT

BLK

GRN/WHTGRNBLK/WHT BLK

RED BLU

RED

BLU/BRN

ORN

TAN

VIO

BLK

PINK

GRA/BLU

GRN/YEL

RED

TAN

COMBINATION GAUGE OPTION

NOTE:
P3AND R3 ARE NOTUSED ON L.P. MODEL

CHECKENGINE LIGHT
OUTPUTTO CONTROL
BOXASSEMBLY

CONNECTTO
CONTROLBOX
ASSEMBLY

TOCONTROL BOX
ASSEMBLY

(OPTIONAL)

(CLOSEDIN NEUTRAL)

COOLANTTEMPERAT URE
OUTPUT

(REFERENCE:
E-CONTROLS,INC.
DRAWING NO.E1737100
ANDE1737200)

A3

GM ENGINE

SYSTEM

STARTERCOMMAND

STARTERB+

IGN.SW INPUT

MILOUTPUT
(SWITCHED
GROUND)

THROTTLEINPUT
(12VFOR HIGH)

FUELPUMP OUTPUT

GROUND

ALT.EXCITE

E1

HEATERTEMP.
CONTROL

1BLOW ERMOTOR FOR
PRESSURIZEDAND HEATED CAB,
2BLOW ERMOTORS FOR A/C

G

HVAC OPTION

I

I

CB4

CIRCUITBREAKER, 20 AMP

CB4

CIRCUITBREAKER, 20 AMP

1 2

M

M2
MOTOR,SHAKER

M

M2
MOTOR,SHAKER

1 2

LP12

LIGHT,STROBE

LP12

LIGHT,STROBE

1 2

X1X1

F F

K1

RELAY,HORNK1RELAY,HORN

30 87

87a

M

M3

FUELPUMP

M

M3

FUELPUMP

-+

h

P1

HOURMETER

h

P1

HOURMETER

1 2

34

S30

SWITCH, FAN

S30

SWITCH, FAN

B

L
M
H
C

R3

SENDER,FUELR3SENDER,FUEL

1 2

M

M6/M9

MOTOR, BLOWER MOTOR

M

M6/M9

MOTOR, BLOWER MOTOR

-

YEL
RED
ORN

LP10

TROUBLELAMP

(OPTIONAL)

LP10

TROUBLELAMP

(OPTIONAL)

1 2

1 2

X3X3
A

B

C

D

S34

SWITCH, PRESSURE

S34

SWITCH, PRESSURE

1 2

CB2

CIRCUITBREAKER, 20 AMP

CB2

CIRCUITBREAKER, 20 AMP

1 2

K8

RELAY,HVAC

(OPTIONAL)

K8

RELAY,HVAC

(OPTIONAL)

S35

SW SPST

S35

SW SPST

12

S24

SW SPST

S24

SW SPST

1 2

X2X2

FF

S1

SWITCH, IGN.S1SWITCH, IGN.

ACC

BAT

ST

IGN

CB3
CIRCUITBREAKER, 15 AMP

CB3
CIRCUITBREAKER, 15 AMP

1

2

LP3

LAMP,RIGHT FRONT

(OPTIONAL)

LP3

LAMP,RIGHT FRONT

(OPTIONAL)

BLK W HT

L10

VALVE,COMPRESSOR

L10

VALVE,COMPRESSOR

1 2

S22

SWITCH, BRAKE

S22

SWITCH, BRAKE

21

t

o

S33

THERMOSTAT

t

o

S33

THERMOSTAT

1 2

BT

BATTERY,12 VdcBTBATTERY,12 Vdc

+ -

K2

RELAY,LIGHTSK2RELAY,LIGHTS

30 87

87a

1

2

3

4

5

6

7

P3

GAUGE,COMBINATION

1

2

3

4

5

6

7

P3

GAUGE,COMBINATION

12345

6

7

H1

HORNH1HORN

1 2

CB5

CIRCUITBREAKER, 10 AMP

CB5

CIRCUITBREAKER, 10 AMP

1 2

LP6

LAMP,LEFT FRONT SIGNAL

(OPTIONAL)

LP6

LAMP,LEFT FRONT SIGNAL

(OPTIONAL)

BLK W HT

K6

RELAY,MISTING PUMP
(OPTIONAL)

K6

RELAY,MISTING PUMP
(OPTIONAL)

30 87

87a

LP11

LAMP,REAR WORK

(OPTIONAL)

LP11

LAMP,REAR WORK

(OPTIONAL)

1 2

M

M10

MOTOR, BLOWER MOTOR

M

M10

MOTOR, BLOWER MOTOR

-

YEL
RED
ORN

K4

RELAY,NEUTRALK4RELAY,NEUTRAL

30 87

87a

S26

SWITCH, TURNSIGNAL
(OPTIONAL)

S26

SWITCH, TURNSIGNAL
(OPTIONAL)

1

2

3

7

LP1

HEADLIGHT, RIGHT

LP1

HEADLIGHT, RIGHT

1 2

X1X1

CC

M

M8

MOTOR,CONDENSER FAN

M

M8

MOTOR,CONDENSER FAN

-+

X2X2

K K

CB6

CIRCUITBREAKER, 20 AMP

CB6

CIRCUITBREAKER, 20 AMP

1 2

K8

RELAY,HVACK8RELAY,HVAC

30 87

87a

M

M5

MOTORASM, WIPER

(CABOPTION)

(INCLUDES2 SPEED SWITCH)

M

M5

MOTORASM, WIPER

(CABOPTION)

(INCLUDES2 SPEED SWITCH)

-+

K10

RELAY,COMPRESSOR

K10

RELAY,COMPRESSOR

30 87

87a

X1X1

A A

K5

RELAY,SIGNAL LIGHTS
(OPTIONAL)

K5

RELAY,SIGNAL LIGHTS
(OPTIONAL)

30 87

87a

X1X1

GG

LP9

CURBLAMP

(OPTIONAL)

LP9

CURBLAMP

(OPTIONAL)

1 2

M

M4

MISTINGPUMP
(OPTIONAL)

M

M4

MISTINGPUMP
(OPTIONAL)

-+

LP4

LAMP,RIGHT REAR SIGNAL

(OPTIONAL)

LP4

LAMP,RIGHT REAR SIGNAL

(OPTIONAL)

BLK WHT

1

2

3

4

LP7

LAMP,LEFT REAR SIGNAL

(OPTIONAL)

LP7

LAMP,LEFT REAR SIGNAL

(OPTIONAL)

BLK W HT

LP14

LAMP,DOME

(CABOPTION)

LP14

LAMP,DOME

(CABOPTION)

1 2

LP8

LAMP,LEFT REAR TAIL/BRAKE

(OPTIONAL)

LP8

LAMP,LEFT REAR TAIL/BRAKE

(OPTIONAL)

BLK

RED

WHT

P2

GAUGE,FUELP2GAUGE,FUEL

1

S

3

I

1

2

3

4

A5

SENSOR,GASOLINE

(GMENGINE)

1

2

3

4

A5

SENSOR,GASOLINE

(GMENGINE)

X1X1

DD

K9

RELAY,CONDENSOR FAN

K9

RELAY,CONDENSOR FAN

F1

FUSE,1A.F1FUSE,1A.

1 2

M

M7

MOTOR,DEFROSTER FAN

(CABOPTION)

M

M7

MOTOR,DEFROSTER FAN

(CABOPTION)

-+

K5

RELAY,SIGNAL LIGHTS
(OPTIONAL)

K5

RELAY,SIGNAL LIGHTS
(OPTIONAL)

X1X1

B B

K9

RELAY,CONDENSOR FAN

K9

RELAY,CONDENSOR FAN

30 87

87a

LP2

HEADLIGHT, LEFT

LP2

HEADLIGHT, LEFT

1 2

K3

RELAY,SHAKERK3RELAY,SHAKER

30 87

87a

A

B

C

D

S25

SWITCH, HAZARD
(OPTIONAL)

S25

SWITCH, HAZARD
(OPTIONAL)

362

5

1

2

CB9

CIRCUITBREAKER, 20 A.

CB9

CIRCUITBREAKER, 20 A.

1 2

LP5

LAMP,RIGHT REAR TAIL/BRAKE

(OPTIONAL)

LP5

LAMP,RIGHT REAR TAIL/BRAKE

(OPTIONAL)

BLK

RED

WHT

CB1
CIRCUITBREAKER, 70 AMP

CB1
CIRCUITBREAKER, 70 AMP

1

2

CB8

CIRCUITBREAKER, 10 A.

(OPTIONAL)

CB8

CIRCUITBREAKER, 10 A.

(OPTIONAL)

1 2

X1X1

H H

1 2

CB7

CIRCUITBREAKER, 20 A.
(OPTIONAL)

CB7

CIRCUITBREAKER, 20 A.
(OPTIONAL)

1 2

E13

FLASHER
(OPTIONAL)

E13

FLASHER
(OPTIONAL)

LX

R1

SENDER,OIL PRESSURE

R1

SENDER,OIL PRESSURE

1 2

56507376-I Sheet 1 of 3

FORM NO. 56043129 - SR 1900 - 69

WIRING DIAGRAM 2 of 3

ELECTRICAL SYSTEM

Item Ref. No. Qty Description

A2 Control Box Assembly

H2 Back Up Alarm (optional)

K1 Relay, Horn
K2 Relay, Lights
K3 Relay, Shaker
K4 Relay, Neutral
K6 Relay, Misting Pump (optional)

L1 Valve S1, Hopper Close/Open
L2 Valve S2, Main Broom
L3 Valve S3, Side Broom
L4 Valve S4, Dust Control
L5 Valve S5, Hopper Up/Down
L6 Valve S6, Hopper Up/Bypass
L7 Valve S7, Hopper Open
L8 Valve S8, Dust Control Bypass
L9 Valve S9, Hopper Lower

R2 Drive Pedal Sensor, 5K Ohm

S2 Switch, Main Broom
S3 Switch, Low LP Pressure
S4 Switch, Hopper Interlock
S5 Switch, Dust Control Filter (optional)
S6 Switch, Hopper Temp. (optional)
S26 Switch, Misting Pump (optional)

TPS1 Touch Pad Switch, Engine Speed
TPS2 Touch Pad Switch, Horn
TPS3 Touch Pad Switch, Lights
TPS4 Touch Pad Switch, Shaker
TPS5 Touch Pad Switch, Dust Control
TPS6 Touch Pad Switch, Side Brooms
TPS7 Touch Pad Switch, Hopper Door Open
TPS8 Touch Pad Switch, Hopper Up
TPS9 Touch Pad Switch, Hopper Down
TPS10 Touch Pad Switch, Hopper Door Close

BRN

BLK/WHT

VIO

VIO

VIO

BLU/WHT

VIO

VIO

BRN/YEL

GRN/GRA

VIO

RED/GRA

VIO

VIO

BLU/GRAVIO

GRN/BRNVIO

VIO/BRNVIO

YEL/WHTVIO

YEL/REDVIO

GRN/RED

GRA/WHT

PINK

YEL/GRA

ORN/GRA

BRN/WHT

YEL/VIO BLK

BLKRED/BLK

GRA/BLU

GRA/YEL

BLKWHT/GRA

BLK

BLK

ORN/BLK BLK

BLK

COMMON GROUND

COMMON ANODE

BLK

BRN/BLKBLK/ORNVIO BLU/ORN

BRN/BLK

YEL/GRNVIO

VIO RED/GRA

BLKVIO

PINK

GRA/BLU

GRN/YEL

GRN/RED

A2

CONTROL BOX
ASSEMBLY

(ACC INPUT)J1-11

J1-1

J1-2

J1-3

J1-4

J1-5

J1-6

J1-7

J1-8

(OPTIONAL)

J1-14

J1-16

J1-19

J1-15

J2-6

GLOW PLUG SIGNAL
(DIESEL ENGINE ONLY)

J2-11(IGN. INPUT)

J1-18

FROM IGNITION
CIRCUIT

J2-1

J2-2

J2-3

J2-10

J2-9

(CLOSES WITH
HIGH HOPPER
TEMPERATURE)

t

140 DEG. F

(OPTIONAL)
(CLOSED WHEN
HOPPER IS
DOWN)

J1-17

TROTTLE OUTPUT TO ENGINE SYSTEM
(+ 12 V FORHIGH SPEED)

J2-5

J2-12

J2-4

(MIL INPUT)

J1-20

J2-8

CLOSES WHEN FILTER IS
PLUGGED)

J1-10

(CLOSES WHEN TANK
IS EMPTY)

(OPEN WHEN
BROOM IS DOWN)

CHECK ENGINE OUTPUT
FROM ENGINE SYSTEM

J3-1

J3-4

J3-5

J3-7

TOUCH PAD
SWITCHES

J4-9

J4-2

J4-10

TOUCH PAD DISPLAY

J3-2

J3-3

J3-11

J3-8

J3-6

J3-10

J3-9

J4-7

J4-4

J4-3

J4-8

J2-14

J4-6

J1-9

J4-5

S3

SWITCH, LOW LP PRESSURE

S3

SWITCH, LOW LP PRESSURE

1 2

L9

VALVE S9, HOPPER LOWER

L9

VALVE S9, HOPPER LOWER

1 2

HOPPER DOOR OPEN

TPS7

HOPPER DOOR OPEN

TPS7

1 2

H2

BACK UP ALARM

H2

BACK UP ALARM

1 2

L5

VALVE S5, HOPPER UP/DOWN

L5

VALVE S5, HOPPER UP/DOWN

1 2

K4

RELAY, NEUTRAL

K4

RELAY, NEUTRAL

HORN

TPS2

HORN

TPS2

1 2

K1

RELAY, HORNK1RELAY, HORN

S6

SWITCH, HOPPER TEMP.

S6

SWITCH, HOPPER TEMP.

1

2 3

HOPPER DOWN

TPS9

HOPPER DOWN

TPS9

1 2

DUST CONTROL

TPS5

DUST CONTROL

TPS5

1 2

L4

VALVE S4, DUST CONTROL

L4

VALVE S4, DUST CONTROL

1 2

D3

LED, GLOW PLUG

D3

LED, GLOW PLUG

D7

LED, DUST CONTROL

D7

LED, DUST CONTROL

D5

LED, LOW FUELD5LED, LOW FUEL

ENGINE SPEED

TPS1

ENGINE SPEED

TPS1

1 2

K6

RELAY, MISTING PUMP
(OPTIONAL)

K6

RELAY, MISTING PUMP
(OPTIONAL)

D6

LED, HOPPER TEMP.

D6

LED, HOPPER TEMP.

L7

VALVE S7, HOPPER OPEN

L7

VALVE S7, HOPPER OPEN

1 2

D1

LED, SERVICE INDICATOR

D1

LED, SERVICE INDICATOR

HOPPER DOOR CLOSE

TPS10

HOPPER DOOR CLOSE

TPS10

1 2

S4

SWITCH, HOPPER INTERLOCK

S4

SWITCH, HOPPER INTERLOCK

1 2

L2

VALVE S2, MAIN BROOM

L2

VALVE S2, MAIN BROOM

1 2

D8

LED, HOPPER NOT DOWN

D8

LED, HOPPER NOT DOWN

R2

DRIVE PEDAL SENSOR, 5K OHM

R2

DRIVE PEDAL SENSOR, 5K OHM

123

L8

VALVE S8, DUST CONTROL BYPASS

L8

VALVE S8, DUST CONTROL BYPASS

1 2

L1

VALVE S1, HOPPER CLOSE/OPEN

L1

VALVE S1, HOPPER CLOSE/OPEN

1 2

K10

RELAY, COMPRESSOR

(OPTIONAL)

K10

RELAY, COMPRESSOR

(OPTIONAL)

LIGHTS

TPS3

LIGHTS

TPS3

1 2

HOPPER UP

TPS8

HOPPER UP

TPS8

1 2

SIDE BROOMS

TPS6

SIDE BROOMS

TPS6

1 2

S2

SWITCH, MAIN BROOM

S2

SWITCH, MAIN BROOM

1 2

D4

LED, SERVICE ENG. (MIL)

D4

LED, SERVICE ENG. (MIL)

L6

VALVE S6, HOPPER UP/BYPASS

L6

VALVE S6, HOPPER UP/BYPASS

1 2

S5

SWITCH, DUST CONTROL FILTER
(OPTIONAL)

S5

SWITCH, DUST CONTROL FILTER
(OPTIONAL)

1 2

K2

RELAY, LIGHTSK2RELAY, LIGHTS

K3

RELAY, SHAKER

K3

RELAY, SHAKER

D2

LED, DUST CONTROL FILTER

D2

LED, DUST CONTROL FILTER

L3

VALVE S3, SIDE BROOM

L3

VALVE S3, SIDE BROOM

1 2

SHAKER

TPS4

SHAKER

TPS4

1 2

S26

SWITCH, MISTING PUMP

S26

SWITCH, MISTING PUMP

32

56507376-I She e t 2 of 3

70 - FORM NO. 56043129 - SR 1900

Kubota Diesel Engine System

Item Ref. No. Qty Description

A4 ACPECS 3000 Governor

BT Battery, 12 Vdc

CB1 Circuit Breaker, 70 Amp
CB3 Circuit Breaker, 15 Amp
CB4 Circuit Breaker, 20 Amp
CB5 Circuit Breaker, 10 Amp

D2 Diode
D3 Diode

E1 Glow Plug
E2 Glow Plug
E3 Glow Plug
E4 Glow Plug

G1 Alternator

K4 Relay, Neutral
K7 Relay, Acc (Diesel only)

M2 Starter

R7 Sender, Temperature

S7 Switch, Ignition
S8 Switch, Coolant Temp.
S28 Switch, Oil Pressure

ELECTRICAL SYSTEM

WIRING DIAGRAM 3 of 3

ORN/GRN

RED/GRN

BLU/PINK

PINK

RED BLK

RED

GRN/BLK

BLK

RED

BLK

PINK

BLK

GRA/BLUGRA/BLU

WHT/GRN

RED

RED

RED

PINK

VIO/BLU VIO/BLU

GRN/YEL

PINK

BLU/PINK

BLU/PINK

PINK

RED/YEL

BLK

RED/YEL

RED

PINK

GRA/BLU

GRN/YEL

TO CONTROL BOX
ASSEMBLY

(CLOSED IN NEUTRAL)

THROTTLE INPUT
(12V FOR HIGH)

IGNITER
ASM.

CONNECT TO
CONTROL BOX
ASSEMBLY

KUBOTA 972 ENGINE SYSTEM

POWER TO FUEL PUMP

H

S27

SWITCH, OIL PRESSURE

S27

SWITCH, OIL PRESSURE

C

NO
NC

1

2

D1D1

X111X111

D

CB3
CIRCUIT BREAKER, 15 AMP

CB3
CIRCUIT BREAKER, 15 AMP

1

2

S1

SWITCH, IGN.S1SWITCH, IGN.

ACC

BAT

ST

IGN

CB1
CIRCUIT BREAKER, 70 AMP

CB1
CIRCUIT BREAKER, 70 AMP

1

2

X1X1

FF

X1X1

GG

X2X2

K K

1

2

L

I/F

S

P

G1

ALTERNATOR

L

I/F

S

P

G1

ALTERNATOR

B

M1

STARTERM1STARTER

30

50

+

BT

BATTERY, 12 Vdc

BT

BATTERY, 12 Vdc

+ -

S

F

L

P

K4

RELAY, NEUTRAL

K4

RELAY, NEUTRAL

30 87

87a

t

o

S8

SWITCH, COOLANT TEMP.

t

o

S8

SWITCH, COOLANT TEMP.

1 2

L9

LPG LOCK-OFFL9LPG LOCK-OFF

1 2

F2

FUSE, 40 A.F2FUSE, 40 A.

1 2

X111X111

C

CB5

CIRCUIT BREAKER, 10 AMP

CB5

CIRCUIT BREAKER, 10 AMP

1 2

X1X1

BB

112112

C

LPG
SOL.
VALVE

GASOLINE
SOL.
VALVE

Y1

CARBURETOR

LPG
SOL.
VALVE

GASOLINE
SOL.
VALVE

Y1

CARBURETOR

HOLD

RED

WHT

BLK

PULL

A1

THROTTLE CONTROL MODULE

HOLD

RED

WHT

BLK

PULL

A1

THROTTLE CONTROL MODULE

+BAT

+AUX

-BAT

X2X2

F F

X1X1

AA

56507376-I Sheet 3 of 3

FORM NO. 56043129 - SR 1900 - 71

RED 1-1

BLK 1-1

RED 10-1

GRN/BLK 16-1

ORN/GRN 16-1

GRN/BLU 14-1

VIO 18-17

GRA/BLK 18-1

WHT/BLK 18-1

PINK/YEL 16-1

BLK 14-1

BLU/GRN 14-1

YEL/BLK 18-9

GRN/YEL 18-1

PINK 18-1

VIO 18-3

GRA/BLU 18-1

BLU/WHT 18-1
GRN/GRA 18-1
BRN/BLK 18-1
BRN/YEL 18-1
RED/GRA 18-1
BLU/GRA 18-1
BLK/WHT 18-1
BRN 18-1

GRN/BRN 18-1

GRN/BRN 18-1

VIO/BRN 18-1

YEL/WHT 18-1

YEL/RED 18-1

GRA/WHT 18-1

ORN/GRA 18-1

YEL/VIO 18-1

RED/BLK 18-1

RED/BLK 18-1

WHT/GRA 18-1

GRA/YEL 18-1

ORN/BLK 18-1

GRA/YEL 18-1

BLK 18-21

BLK 16-1

BLK 18-22

BLK 18-21

WHT/YEL 18-1

BLK 18-1BLK 18-2

BLK 18-3

BLK 18-4

BLK 18-6

BLK 14-2

BLK 18-23

GRN/YEL 16-2

GRA 18-1

VIO 16-6

VIO 18-9

YEL/BLK 18-8

VIO 18-15

RED 18-1RED 18-2

BLK 18-18

RED 18-2

BLK 16-1

WHT/BLK 18-1

TAN 18-1

GRA/BLK 18-1

VIO 18-2.
VIO 18-18.

VIO 18-18

GRA/BLK 18-1.

YEL/BLK 16-1.

BLK 18-9.

VIO 18-3

VIO 18-19

YEL/BLK 18-1

REAR WORK LIGHT

YEL/BLK 18-8

CURB LIGHT

YEL/BLK 18-2

YEL/BLK 16-5.

YEL/BLK 16-5

BLK 6-1

BLK 18-1
BLK 18-2
BLK 18-3

BLK 18-8

BLK 18-9

BLK 18-6

BLK 18-8.

VIO 18-19

BLK 18-10

BLK 18-19

BLK 18-17

REAR WORK LIGHT

BLK 18-14

SIGNAL LIGHT

BLK 18-4

VIO 18-18

VIO 18-2

BLK 18-8

BLK 18-9

YEL/BLK 16-5
YEL/BLK 16-1

BLK 18-11

BLK 18-19

BLK 14-2

WHT/GRA 18-1

YEL/VIO 18-1

BLK 18-27

BLK 14-1

VIO 18-4

VIO 18-9

VIO 18-7

VIO 18-8

VIO 18-5

VIO 18-11

VIO 18-12

VIO 18-13

VIO 18-10

BLK/WHT 18-1

VIO 18-12

BRN/BLK 18-2

VIO 18-8

GRN/GRA 18-1

VIO 18-7

BRN/YEL 18-1

VIO 18-10

VIO 18-4

BLU/WHT 18-1

RED/GRA 18-1

VIO 18-5

BLU/GRA 18-1

VIO 18-11

BRN 18-1

VIO 18-13

ORN/BLK 18-1

BLK 18-7

GRA/RED 14-1

RED 14-1

RED/GRN 16-1

GRN/BLK 16-1

RED 8-1

RED 10-1

RED 14-1

VIO 16-1

GRN/BLU 14-1

PINK 16-2

PINK 18-1

ORN/GRN 16-1

VIO/BRN 18-1

VIO 16-1

YEL/BLK 16-2

VIO 16-2
VIO 16-3

VIO 16-4

GRA/RED 14-1

VIO 16-3

YEL/WHT 18-1

YEL/BLK 16-1

YEL/RED 18-1

BLU/GRN 14-1

VIO 16-4

WHT/YEL 18-1

PINK 16-3

BLK 18-10

BLU/PINK 16-1

PINK 16-2

RED/GRN 16-1

GRA/WHT 18-1

VIO 18-2

VIO 18-1

ORN 16-1

YEL/GRA 18-1

ORN/GRA 18-1

BRN/WHT 18-1

BLK 18-7

VIO 16-2

YEL 16-1

GRN/YEL 16-1

BLK 18-18

BLK 18-24

BLK 18-13

BLK 18-23BLK 18-23

BLK 18-12

YEL/BLK 18-11

BRN/WHT 18-1

YEL/GRA 18-1

YEL 16-3
YEL 16-2

YEL 16-2
YEL 16-1
GRN 18-2
GRN 18-3
VIO/YEL 18-2
VIO/YEL 18-3

YEL 16-3

BLK 18-24
GRN 18-1
GRN 18-2
VIO/YEL 18-1
VIO/YEL 18-2

BLKRED

YEL/BLK 18-3

GRA 18-2

BLK 18-15

GRN 18-3

BLK 18-14

YEL/BLK 18-11

GRA 18-4

VIO/YEL 18-1

GRA 18-3

YEL/BLK 18-4

BLK 18-34

VIO/YEL 18-6

BLK 18-35

YEL/BLK 18-12

GRA 18-5

GRN 18-4

GRA 18-3

GRA 18-2

GRA 18-1

YEL/BLK 18-2

YEL/BLK 18-4

YEL/BLK 18-3

BLK 18-15

SIGNAL LIGHT

BLK 18-22

VIO 18-16

PINK 16-3

PINK 16-4

TAN/BRN 16-1

BLK 1-1

BLK 6-1

RED 1-1

RED 8-1

YEL/BLK 18-1

BLK 18-17

YEL/BLK 18-13

BLK 18-36

VIO 18-20

BLK/ORN 18-1

VIO 14-2

BLU 18-1

BLU/ORN 18-1

GRA/ORN 18-1

BRN/BLK 18-3 RED 18-3

RED 18-3

BLU 18-1

GRA/ORN 18-1

BLK 18-37

BLK 18-37

PINK 16-7

BLK/RED 16-1

WHT/GRN 18-1

GRN/RED 18-1

GRN/WHT 18-1

BLK/GRN 18-1

BLK/GRN 18-1

GRN/WHT 18-1

GRN/RED 18-1

WHT/GRN 18-1

BLK 14-3

BLU/GRN 14-2

BLK/RED 16-1

PINK 16-4

PINK/YEL 16-1

TAN/BRN 16-1

PINK 16-7

BLU/PINK 16-1

GRN/YEL 18-1

GRA/BLU 18-1

TAN 18-1

BLK/ORN 18-1

BLU/ORN 18-1

VIO 16-6

VIO 14-2

BRN/BLK 18-3

BRN/BLK 18-1
BRN/BLK 18-2

YEL/GRN 18-1

VIO 18-23

YEL/GRN 18-1

VIO 18-15

VIO 18-16

VIO 18-17

VIO 18-23

BLK/ORN 18-2

RED 14-2

ORN 16-1

BLU/BLK 14-1

RED 14-4

RED 14-4

RED 14-2

VIO 18-1

BLU/BLK 14-1

VIO 18-20

VIO/YEL 18-3

BLK 18-12

GRN 18-1

BLK 18-13

YEL/BLK 18-10

BLK 18-11

YEL/BLK 16-2

YEL/BLK 18-9
YEL/BLK 18-10

BLK 18-25

GRN/YEL 16-2

GRN/YEL 16-1

GRN/YEL 16-4

GRN/YEL 16-3

VIO 14-3

GRN/YEL 18-3

GRN/YEL 18-3

GRN/YEL 18-2

GRN/YEL 18-2

GRN/YEL 18-4

GRN/YEL 18-4

REVISIONS

DATE DFTM APPD

DWG. NO. SHEET

AGREES TO RETURN IT UPON REQUEST.

PLYMOUTH, MINNESOTA AND IT HAS BEEN ISSUED WITH THE UNDERSTANDING THAT IT WILL NOT BE REP RO-
DUCED NOR COPIED NOR US ED FOR ANY PURP OSE OTHER THAN FOR WHICH IT WAS ISSUED AND RECIPIENT

THIS DRAWING AND THE DESIGN REPRESENTED HEREON IS THE PROPERTY OF NILFISK-ADVANCE, INC.,

CONFIDENTIAL

REVISIONS

REV DATE

A

ECO

A2
CONTROL BOX ASSEMBLY

LIGHT OPTIONS

REPLACES P1 AND P2

TROUBLE LAMP

56507375

1 OF 3

WGLA-03095 6/14/06

MISTING PUMP

ENGINE SYSTEM

WGL

RELEASED

NOTE: VIO 18-20 IS USED WITH
MISTING PUMP OPTION

NOTE: FOR DIESEL WIRE CB4
AS SHOWN ON SHEET 2

NOTE: BRN/BLK 18-3 IS FROM MISTING PUMP HARNESS

A-03183 8/14/06 WGLBWGL
UPDATE: CHANGE GENDER OF X127 AND X12 8
ADD: ADD: BLU/ORN 18-3, BLK/ORN 18-2 AT S29

A-03211 W GLCWGL
ADD: CB6, RED 14-4, BLU/BLK 14-1
DELETE: VIO 16-5
UPDATE: CB7 WAS CB8, CB8 WAS CB7,
BLU/GRN 14-1 WAS BLU/GRN 18-1, VIO 18-1
MOVED FROM PIN 30 TO PIN 86 AT K3, BLK
14-1 WAS BLK 18-26, BLK 14-2 WAS BLK
18-25, BLK 14-3 WAS BLK 18-38

8/31/06

A-03243 W GL

D

WGL9/28/06

DELETE: M5 AND TAN/BRN 18-2

UPDATE: MOVE RED/YEL 18-10 FROM X112 TO

X111, MOVE BLK 16-11 FROM X163 TO X111,
REMOVE (GM ONLY) FROM M3

A-03267 W GL

E

WGL10-19-06
DEL: M6 AND TAN/BRN 18-3
ADD: SP26, GRA/BRN 18-2, GRA/BRN 18 -3,
RED/YEL 18-12

UPDATE: MOVE GRA/BRN 18-1 FROM X140 TO

SP26

A-03377 W GLFWGL12/21/06
UPDATE: VIO WIRE CONNECTION FOR
MISTING PUMP OPTION

UPDATE: REMOVE S29, X168, BLU/ORN 18-3

A-03533 W GL

G

WGL4-12-07

UPDATE: 1 WAS 3 AND 3 WAS 1 AT S6

A-03568 W GL

H

WGL4-19-07

WGL

I

WGL
UPDATE: CB7 IS 20A WAS 15A, ADD SHEET
3 FOR CAB OPTION, UPDATE WIRING AT
RELAYS AND CIRCUIT BREAKERS

I

A-03675 9-6-07

J

A-04159 5-6-08 PMO WGL

UPDATE: FUSE 40 A WAS FUSE 30 A

K

A-04428 11-25-08 PMO HH

UPDATE: ADDED 56508916

HHPMO5-5-09A-04588

ADD: GRN/YEL 18-2, GRN/YEL 18-3, GRN/YEL 18-4,

X209, X210, X211

L

L

L

L

L

SP19SP19

12

X73X73

A

B

C

D

X38X38

A

B

A

B

C

L8
VALVE S8, DUST CONTORL BYPASS

L8
VALVE S8, DUST CONTORL BYPASS

1 2

S25 SWITCH, HAZARDS25 SWITCH, HAZARD

32

5 6

X128X128

A

B

J1J1

1
2
3
4
5
6
7
8
9
10

11
12
13
14
15
16
17
18
19
20

X211X211

1 2

X71X71

A

B

C

D

K3

RELAY, SHAKERK3RELAY, SHAKER

86 85

87a
87

30

X37X37

A

B

X85X85

123

4

X45X45

A

B

A

B

X2X2

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

LP5
LAMP, RIGHT REAR TAIL/BRAKE

(OPTIONAL)

LP5
LAMP, RIGHT REAR TAIL/BRAKE

(OPTIONAL)

BLK
RED

WHT

K4

RELAY, NEUTRAL

K4

RELAY, NEUTRAL

86 85

87a
87

30

CB1

CIR. BKR., 70 AMP

MAIN

CB1

CIR. BKR., 70 AMP

MAIN

1 2

X83X83

2

3

451

6

X86X86

1

2

LP11

LAMP, REAR WORK

(OPTIONAL)

LP11

LAMP, REAR WORK

(OPTIONAL)

1 2

L2
VALVE S2, MAIN BROOM

L2
VALVE S2, MAIN BROOM

1 2

K6

RELAY, MISTING PUMP

(OPTIONAL)

K6

RELAY, MISTING PUMP

(OPTIONAL)

86 85

87a
87

30

SP6SP6

2

1
1

K1

RELAY, HORNK1RELAY, HORN

86 85

87a
87

30

X42X42

A

B

X110X110X109X109

CB6

CIR. BKR., 20 AMP

SHAKER

CB6

CIR. BKR., 20 AMP

SHAKER

1 2

S23S23

1 2

X166X166

X187X187

X55X55

A

B

LP8
LAMP, LEFT REAR SIGNAL

(OPTIONAL)

LP8
LAMP, LEFT REAR SIGNAL

(OPTIONAL)

BLK WHT

X53X53

A

B

X76X76

A

B

X62X62

A

B

SP18SP18

1 2

L3
VALVE S3, SIDE BROOM

L3
VALVE S3, SIDE BROOM

1 2

SP3SP3

1

122

R1

SENDER, OIL PRESSURE

(OPTIONAL)

R1

SENDER, OIL PRESSURE

(OPTIONAL)

1 2

S26 SWITCH, MISTING PUMPS26SW ITCH, MISTING PUMP

32

S1
SWITCH, IGNITION

S1
SWITCH, IGNITION

ACC

BAT

ST

IGN

H2

BACK UP ALARM

(OPTIONAL)

H2

BACK UP ALARM

(OPTIONAL)

+ -

1

2

X58X58

A

B

X127X127

A

B

A

B

X69X69

A

B

X29X29

A

B

C

D

E

F

L5
VALVE S5, HOPPER UP/DOWN

L5
VALVE S5, HOPPER UP/DOWN

1 2

X61X61

A

B

X102X102

1

2

LP4
LAMP, RIGHT REAR SIGNAL

(OPTIONAL)

LP4
LAMP, RIGHT REAR SIGNAL

(OPTIONAL)

BLK WHT

X57X57

A

B

X126X126

S2
SWITCH, MAIN BROOM

S2
SWITCH, MAIN BROOM

1 2

K5

RELAY, SIGNAL LIGHTS

(OPTIONAL)

K5

RELAY, SIGNAL LIGHTS

(OPTIONAL)

86 85

87a
87

30

LP6

LAMP, LEFT FRONT SIGNAL

(OPTIONAL)

LP6

LAMP, LEFT FRONT SIGNAL

(OPTIONAL)

WHTBLK

X103X103

1

2

CB8

CIR. BKR., 10 AMP

MISTING PUMP

CB8

CIR. BKR., 10 AMP

MISTING PUMP

1 2

X54X54

A

B

SP8SP8

2

1
1

A

B

L6
VALVE S6, HOPPER UP/BYPASS

L6
VALVE S6, HOPPER UP/BYPASS

1 2

X186X186

LP13
LAMP, LEFT REAR TAIL/BRAKE

(OPTIONAL)

LP13
LAMP, LEFT REAR TAIL/BRAKE

(OPTIONAL)

BLK
RED

WHT

---

BT1

BATTERY, 12 Vdc

---

BT1

BATTERY, 12 Vdc

- +

M

M8

MOTOR, SHAKER

(POCKET FILTER)

M

M8

MOTOR, SHAKER

(POCKET FILTER)

-+

R3

SENDER, FUELR3SENDER, FUEL

1 2

X63X63

A

B

X169X169

X72X72

A

B

C

D

LP3

LAMP, RIGHT FRONT SIGNAL

(OPTIONAL)

LP3

LAMP, RIGHT FRONT SIGNAL

(OPTIONAL)

BLK WHT

CB5

CIR. BKR., 10 AMP

IGNITION

CB5

CIR. BKR., 10 AMP

IGNITION

1 2

R2

DRIVE PEDAL SENSOR, 5K OHM

R2

DRIVE PEDAL SENSOR, 5K OHM

123

X43X43

A

B

F1

FUSE, 1 A.F1FUSE, 1 A.

B A

P2

GAUGE, FUELP2GAUGE, FUEL

1

S

3

I

S24 SWITCH, TURN SIGNALS24 SWITCH, TURN SIGNAL

1

2

3

7

LP12

STROBE

(OPTIONAL)

LP12

STROBE

(OPTIONAL)

1 2

A

B

LP9

LAMP, CURB

(OPTIONAL)

LP9

LAMP, CURB

(OPTIONAL)

1 2

X78X78

A

B

C

D

L4
VALVE S4, DUST CONTROL

L4
VALVE S4, DUST CONTROL

1 2

X167X167

A

B

1

2

CHASSIS GROUNDX82 CHASSIS GROUNDX82

2

3

451

6

S5

SWITCH, DUST CONTROL FILTER

(OPTIONAL)

S5

SWITCH, DUST CONTROL FILTER

(OPTIONAL)

12

1

2

1

2

1

2

3

4

5

6

7

P3
GAUGE, COMINATION

(OPTION)

1

2

3

4

5

6

7

P3
GAUGE, COMINATION

(OPTION)

12345

6

7

X79X79

1

2

3

4

X165X165

A

B

X10X10

123

4

SP5SP5

1

22

J2J2

1
2
3
4
5
6
7

8

9
10
11
12
13
14

X1X1

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

X204X204

X31X31

A

B

C

D

E

F

CB3

CIR. BKR., 15 AMP

STARTER

CB3

CIR. BKR., 15 AMP

STARTER

1 2

A

B

X125X125

X99X99

1

2

SP14SP14

12

X33X33

A

B

LP10

LAMP, TROUBLE

(OPTIONAL)

LP10

LAMP, TROUBLE

(OPTIONAL)

1 2

X52X52

A

B

SP15SP15

1

2
1

X64X64

A

B

CB4

CIR. BKR., 20 AMP

ACCESSORY

CB4

CIR. BKR., 20 AMP

ACCESSORY

1 2

A

B

X101X101

1

2

CB7

CIR. BKR., 20 AMP

SIGNAL LIGHTS

CB7

CIR. BKR., 20 AMP

SIGNAL LIGHTS

1 2

X74X74

A

B

C

D

1

2

X46X46

A

B

X50X50

A

B

L1
VALVE S1, HOPPER DOOR CLOSE/OPEN

L1
VALVE S1, HOPPER DOOR CLOSE/OPEN

1 2

X59X59

A

B

C

D

E

F

K2

RELAY, LIGHTSK2RELAY, LIGHTS

86 85

87a
87

30

X100X100

1

2

X96X96

1

2

M

M2

MOTOR, SHAKER

(PANEL FILTER)

M

M2

MOTOR, SHAKER

(PANEL FILTER)

-+

X97X97

1

2

X188X188

1

2

X39X39

A

B

t

o

S6

SWITCH, HOPPER TEMP.

(OPTIONAL)

140 DEG. F

t

o

S6

SWITCH, HOPPER TEMP.

(OPTIONAL)

140 DEG. F

1 2

3

X40X40

A

B

X185X185

SP21SP21

12

SP2SP2

2

11

1

2

H1

HORNH1HORN

1 2

M

M5

MOTOR ASM, WIPER

INCLUDES 2 SPEED SWITCH

M

M5

MOTOR ASM, WIPER

INCLUDES 2 SPEED SWITCH

-+

1

2

3

4

A5

SENSOR, GASOLINE

(GM ENGINE)

1

2

3

4

A5

SENSOR, GASOLINE

(GM ENGINE)

CB2

CIR. BKR., 20 AMP

LIGHTS

CB2

CIR. BKR., 20 AMP

LIGHTS

1 2

SP13SP13

12

X210X210

1

2

M

M3

PUMP, FUEL

M

M3

PUMP, FUEL

-+

LP1

HEAD LIGHT, RIGHT

LP1

HEAD LIGHT, RIGHT

12

SP12SP12

12

S4
SWITCH, HOPPER INTERLOCK

S4
SWITCH, HOPPER INTERLOCK

1 2

X75X75

A

B

E5
FLASHER

(OPTIONAL)

E5
FLASHER

(OPTIONAL)

P

LX

L7
VALVE S7, HOPPER DOOR

L7
VALVE S7, HOPPER DOOR

1 2

SP7SP7

1

2
1

LP2

HEAD LIGHT, LEFT

LP2

HEAD LIGHT, LEFT

12

h

P1

HOURMETER

h

P1

HOURMETER

1 2

34

SP17SP17

1 2

SP20SP20

12

1

2

SP16SP16

1 2

X209X209

1

2

X98X98

1

2

1

2

L9
VALVE S9, HOPPER LOWER

L9
VALVE S9, HOPPER LOWER

1 2

S22

SWITCH, BRAKE

S22

SWITCH, BRAKE

21

SP4SP4

1

112

M

M4
PUMP, MISTING

M

M4
PUMP, MISTING

-+

SP11SP11

12

X47X47

A

B

C

S3

SWITCH, LOW LP PRESSURE

S3

SWITCH, LOW LP PRESSURE

1 2

WIRING SCHEMATIC 1 of 3

ELECTRICAL SYSTEM

revised 8/09

72 - FORM NO. 56043129 - SR 1900

BLK 18-28

RED 6-1

RED

BLK 18-30

BLK

PINK 16-6

BLK 18-30

RED 14-3

RED 6-1

BLK 18-31

BLK

BLK 12-1

RED

RED 14-4

RED/YEL 18-3

TAN 18-2

BLK 18-31

BLK 18-29

GRN/YEL 18-2

BLU/PINK 18-2

BLK 18-28

RED/YEL 18-2

BLU/PINK 18-1

RED/YEL 18-1

RED/YEL 18-1

RED/YEL 18-2

RED/YEL 18-3

RED/YEL 18-4

RED/YEL 18-4

RED/YEL 18-5

BLK 18-29

RED/YEL 18-11

BLU/PINK 16-3

BLU/PINK 18-1

RED 6-1

PINK 16-8

RED 6-1

TAN 18-3

BLU/PINK 16-4

GRN/BLU 14-2

WHT/VIO 14-1

VIO 14-1

BLK 18-5

BLK 18-5

WHT/VIO 14-1

RED 14-5

RED 14-5

GRN/BLU 14-2

GRA/BRN 18-1

RED/YEL 18-6

RED/YEL 18-6

PINK 16-5

PINK 18-2

PINK 18-2

GRN/YEL 18-3

RED 16-3

RED 16-2

RED 16-1

RED 16-3

RED/YEL 18-7

BLK 16-13

RED/YEL 18-8

RED/YEL 18-9

BLK 16-12

GRN/RED 10-1

GRN/RED 10-1

BLK 16-11

GRA/BLU 18-2

BLK 12-1

RED 14-4

RED/YEL 18-7

RED 12-1

RED 12-2

PINK 16-5

PINK 16-6

BLU/PINK 16-3

GRN/YEL 18-2

GRA/BLU 18-2

TAN 18-2

RED 16-1

PINK 16-8

GRN/YEL 18-3

BLU/PINK 16-4

VIO 18-21

GRA/BRN 18-3

TAN 18-3

VIO 14-1

GRN/RED 18-2

GRN/RED 18-2

RED/YEL 18-10

RED/YEL 18-11

RED/YEL 18-10

RED/YEL 18-5

BLK 16-11

BLK 16-12

GRA/BRN 18-2

RED 16-2

VIO 18-22

GRA 18-6

VIO 18-21

BLK 16-13

RED/YEL 18-9

RED/YEL 18-8

GRA/BRN 18-1

GRA/BRN 18-2

GRA/BRN 18-3

RED/YEL 18-12

RED/YEL 18-12

KUBOTA 972 ENGINE SYSTEM

COOLANT TEMPERATURE

OUTPUT

GM ENGINE SYSTEM

THROTTLE INPUT

(12V FOR HIGH SPEED)

(REFERENCE: E-CONTROLS, INC. DRAWING NO. E173 7100 AND E1737200)

IGNITION

KUBOTA DIESEL ENGINE SYSTEM

REVISIONS

DATE DFTM APPD

DWG. NO. SHEET

AGREES TO RETURN IT UPON REQUEST.

PLYMOUTH, MINNESOTA AND IT HAS BEEN ISSUED WITH THE UNDERSTANDING THAT IT WILL NOT BE REPRO-
DUCED NOR COPIED NOR USE D FOR ANY PURP OSE OTHER THAN FOR WHICH IT WAS ISSUED AND RECIPIENT

THIS DRAWING AND THE DESIGN REPRESENTED HEREON IS THE PROPERTY OF NILFISK-ADVANCE, INC.,

CONFIDENTIAL

REVISIONS

REV DATE

A

ECO

SEE SHEET 1

56507375

2 OF 3

WGL6/14/06

ALT. EXCITE

FUEL SELECT

MIL OUTPUT

FUEL PUMP (+)

IGN. SWITCH INPUT

FUEL PUMP (-)

CAN (-)

CAN (+)

START COMMAND

WGLA-03095

GRN/BLK 16-1

RED 10-1

GRN/BLU 14-1
ORN/GRN 18-1

RED8-1

RED 10-1

RED 14-1

RED 14-2

RED 18-3

GRN/BLU 14-1

VIO 14-2

VIO 16-6

VIO 16-1

RED 8-1

RED 1-1

BLK 1-1
BLK 6-1

TAN/BRN 16-1

GRN/YEL 18-1

BLU/PINK 16-1

PINK/YEL 16-1

BLK/RED 16-1

PINK 16-7

PINK 16-4

TAN 18-1

GRA/BLU 18-1

TAN 18-1

GRA/BLU 18-1

BLK 1-1

BLK 6-1

BLK/GRN 18-1

GRN/WHT 18-1

GRN/RED 18-1

WHT/GRN 18-1

GASOLINE
SENSOR

RED 1-1
RED 8-1

RED 8-1

RED 1-1

BLK 1-1
BLK 6-1

TAN/BRN 16-1

GRN/YEL 18-1

BLU/PINK 16-1

PINK/YEL 16-1

BLK/RED 16-1

PINK 16-7

PINK 16-4

TAN 18-1

GRA/BLU 18-1

TAN/BRN 16-1

GRN/YEL 18-1

BLU/PINK 16-1

PINK/YEL 16-1

BLK/RED 16-1

PINK 16-7

PINK 16-4

WHT/GRA 18-1
RED/BLK 18-1
YEL/VIO 18-1
PINK 18-1
ORN/BLK 18-1

BLK 18-3

YEL/GRA 18-1
ORN/GRA 18-1
BRN/WHT 18-1
GRA/YEL 18-1
GRN/YEL 18-1

INSERT GRN/RED WIRE INTO
POSITION 6 ON CONNECTOR J2 AT
THE CONTROL BOX ASSEMBLY

A-03183 8/14/06 WGLBWGL

SEE SHEET 1

A-03211 8/31/06 WGL

C

WGL

SEE SHEET 1

A-03243 9/28/06 WGL

D

WGL

SEE SHEET 1

A-03267 10-19-06 WGL

E

WGL

SEE SHEET 1

CONNECT VIO 14-1
TO VIO 16-1, VIO
16-6, AND VIO 14-2

A-03377 12/21/06 WGLFWGL

SEE SHEET 1

SEE SHEET 1

A-03533 WGL

G

WGL4-12-07

SEE SHEET 1

A-03568 WGL

H

WGL4-19-07

SEE SHEET 1

WGL

I

WGLA-03675 9-6-07

J

A-04159 5-6-08 PMO WGL

SEE SHEET 1

J

K

A-04428 11-25-08 PMO HH

SEE SHEET 1

A-04588 5-5-09 PMO HH

SEE SHEET 1

L

X157X157

E2E2

1

2

D2D2

X151X151

X124X124

AB

M1

STARTERM1STARTER

30

50

+

X114X114

S

F

L

P

X132X132

A

A

B

C

D

X150X150

A4

APECS 3000 GOVERNOR

A4

APECS 3000 GOVERNOR

B (+)

RED

B (-)

BLK

ACTUATOR (+)

WHT

ACTUATOR (-)

WHT/BLK

MAGNETIC PICKUP (+)

BLU

MAGNETIC PICKUP (-)

GRN

SPEED SELECT 1

VIO

SPEED SELECT 2

GRA

SERVICE TOOL (Tx)

YEL

SERVICE TOOL (Rx)

ORN

X121X121

1

J2.J2.

1
2
3
4
5
6
7

8

9
10
11
12
13
14

F2

FUSE, 40 A.F2FUSE, 40 A.

A B

M7

STARTERM7STARTER

30

50

+

LPG
SOL.
VALVE

GAOLINE
SOL.
VALVE

CARBURETOR

LPG
SOL.
VALVE

GAOLINE
SOL.
VALVE

CARBURETOR

D1D1

E1E1

1

2

X10..X10..

123

4

X154X154

A

B

C

D

X119X119

1

2

R6

SENDER, COOLANT TEMP.

(GAUGE OPTION)

R6

SENDER, COOLANT TEMP.

(GAUGE OPTION)

12

X111X111

ABCDEFGHJKLMNPR

S

X113X113

ABCDEFGHJKLMNPR

S

SP23SP23

1

2

2

M

M1.

STARTER

M

M1.

STARTER

BAT

S

GND

SP25SP25

1

122

X156X156

A

B

C

SP22SP22

1

22

K7

RELAY, ACCESSORY

(DIESEL ONLY)

K7

RELAY, ACCESSORY

(DIESEL ONLY)

86 85

87a
87

30

E4E4

1

2

X2_X2_

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

t

o

S9

SWITCH, COOLANT TEMP.

t

o

S9

SWITCH, COOLANT TEMP.

1 2

X10.1
ENGINE GROUND

X10.1
ENGINE GROUND

123

X1_X1_

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

L

I/F

S

P

G1

ALTERNATOR

L

I/F

S

P

G1

ALTERNATOR

B

X78.X78.

A

B

C

D

TERMINAL, 6 WAY

X83.
TERMINAL, 6 WAY

X83.

234

5 1

6

AB

CB4.

CIR. BKR., 20 AMP

ACCESSORY

CB4.

CIR. BKR., 20 AMP

ACCESSORY

1 2

X120X120

1

2

S28

SWITCH, OIL PRESSURE

S28

SWITCH, OIL PRESSURE

C

NO
NC

X158X158

A

B

C

S7
SWITCH, IGNITION

S7
SWITCH, IGNITION

17

19

5030AC

SP24SP24

1

22

SP26SP26

1

2
2

X122X122

1

t

o

S8

SWITCH, COOLANT TEMP.

t

o

S8

SWITCH, COOLANT TEMP.

1 2

X112X112

ABCDEFGHJKLMNPR

S

CB1.

CIR. BKR., 70 AMP

MAIN

CB1.

CIR. BKR., 70 AMP

MAIN

1 2

X2.X2.

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

HOLD

RED

WHT

BLK

PULL

A1

THROTTLE CONTROL MODULE

HOLD

RED

WHT

BLK

PULL

A1

THROTTLE CONTROL MODULE

+BAT

+AUX

-BAT

E3E3

1

2

L15

LPG LOCK-OFF

L15

LPG LOCK-OFF

1 2

X131X131

A

X142X142

S

F

L

P

SP10SP10

2

1

1

2
1

S27

SWITCH, OIL PRESSURE

S27

SWITCH, OIL PRESSURE

C

NO
NC

X1..X1..

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

X2..X2..

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

D3D3

X130X130

A

X10.X10.

123

4

X1.X1.

A

B

C

D

E

F

G

H

J

K

L

M

NPR

S

X129X129

A

X140X140

ABCDEFGHJKLMNPR

S

L

I/F

S

P

G2

ALTERNATOR

L

I/F

S

P

G2

ALTERNATOR

B

R7

SENDER, TEMP.R7SENDER, TEMP.

12

ELECTRICAL SYSTEM

WIRING SCHEMATIC 2 of 3

revised 8/09

FORM NO. 56043129 - SR 1900 - 73

RED 12-1

RED/VIO 12-1

YEL 14-1

RED 14-6

ORN 14-1

RED..

BLK 14-4

BLK 18-29

GRN/YEL 16-4

YEL 14-1

RED 14-6

ORN 14-1

RED 12-1

GRN/YEL 16-3

GRN/YEL 16-4

GRN/YEL 16-5

BLK 18-29

BLK 18-28

BLK 18-30

VIO 18-21

BLK 18-20

VIO/GRA 12-1

VIO/GRA 12-1

VIO/GRA 12-2

RED/VIO 12-1

GRN/YEL 16-3

GRN/YEL 16-5

VIO 18-21

BLK 18-20

VIO 18-22

BLK 18-31

BLK 18-31

VIO 18-22

BLK 18-28

BLK 18-30

BLK 14-4

VIO/GRA 12-2VIO/GRA 12-4

VIO/GRA 12-5

WHT

BLK/WHT

GRN

YEL..

RED..

ORN..

BLK..

BLK.

BLK.

RED.

BLK/WHT.

GRN.

GRN/WHT.

BLU

RED... BLK...

ORN 14-2

RED 14-7

YEL 14-2

GRN 18-5

WHT 18-1

BLK/WHT 18-2

YEL 14-2

RED 14-7

ORN 14-2

BLK 16-1

GRN/WHT 18-2

GRN 18-5

BLK/WHT 18-2

VIO/GRA 14-1

BLK 14-7

RED/WHT 18-1

WHT 18-1

BLK 14-5

BLK 14-5
BLK 16-1

BLK 14-7
BLK 18-31

YEL.. BLU..

VIO/GRA 14-1

VIO/GRA 12-3

BLK 18-31

GRN/WHT 18-2

BLU/BRN 18-1

BLU/BRN 18-1

RED/GRA 18-2

VIO 18-24

VIO 18-25

RED/GRA 18-3

RED/GRA 18-3

RED/GRA 18-2

VIO 18-25

VIO 18-24

DWG. NO. SHEET

AGREES TO RETURN IT UPON REQUES T.

PLYMOUTH, MINNESOTA AND IT HAS BEEN ISSUED WITH THE UNDERSTANDING THAT IT WILL NOT BE REPRO-
DUCED NOR COP IED NOR USED F OR ANY PURPOSE OTHER THAN FOR WHICH IT WAS ISSUED AND RECIPIENT

THIS DRAWING AND THE DESIGN REPRESENTED HEREON IS THE PROPERTY OF NILFISK-ADVANCE, INC.,

56507375

3 OF 3

CONNECT TO GRN/YEL
WIRE (AT X188) FROM K5

CAB WIRING

CONNECT TO X76 FOR
STROBE LIGHT OPTION
ON TOP OF CAB

CONNECT TO X83 ON SHEET 1

HEATER TEMP.
CONTROL

E1

WITH A/C SYSTEM:

1. M6 IS NOT USED

2. X170 PLUGS INTO X174

3. X172 PLUSG INTO X175

A/C SYSTEM

CONNECT TO X204 ON SHEET 1

UNPLUG X99 FROM L5 (S5 HOP PER
UP/DOWN VALVE) AND CO NNECT IT
TO X208. CONNECT X207 TO L5.

X194X194

R9R9

1

2

SP28SP28

1

122

3

2

1

X208

CONNECT TO X99 AT L5

X208

CONNECT TO X99 AT L5

1

2

X189X189

A

B

SP27SP27

2

1

2

1 2

t

o

S33

THERMOSTAT

t

o

S33

THERMOSTAT

1 2

X191X191

1

1

S34

SWITCH, PRESSURE

S34

SWITCH, PRESSURE

1 2

X178X178

X83.X83.

2

3

4

5

1

X172X172

1

M

M5

MOTOR ASM, WIPER

INCLUDES 2 SPEED SWITCH

M

M5

MOTOR ASM, WIPER

INCLUDES 2 SPEED SWITCH

-+

X190X190

1

X197X197

ABC

X207

CONNECT TO L5

X207

CONNECT TO L5

12

A

B

C

L10

VALVE, COMPRESSOR

L10

VALVE, COMPRESSOR

1 2

X195X195

X179X179

M

M6

MOTOR, BLOWER

M

M6

MOTOR, BLOWER

-

YEL
RED
ORN

S30

SWITCH, FAN

S30

SWITCH, FAN

B

L
M
H
C

M

M7

MOTOR, DEFROSTER FAN

M

M7

MOTOR, DEFROSTER FAN

-+

X198X198

ABC

D

X105X105

1

2

A

B

C

D

K10

RELAY, COMPRESSOR

K10

RELAY, COMPRESSOR

86 85

87a
87

30

X175X175

1

K9

RELAY, CONDENSER FAN

K9

RELAY, CONDENSER FAN

86 85

87a
87

30

X203X203

LP14

LAMP, DOME

(CAB OPTION)

LP14

LAMP, DOME

(CAB OPTION)

1 2

M

M9

MOTOR, BLOWER

M

M9

MOTOR, BLOWER

-

YEL
RED
ORN

X183X183

CB9

CIR. BKR., 20 AMP

HVAC

CB9

CIR. BKR., 20 AMP

HVAC

1 2

M

M10

MOTOR, BLOWER

M

M10

MOTOR, BLOWER

-

YEL
RED

ORN

X170X170

3

2

1

1

LP12.

STROBE

(OPTIONAL)

LP12.

STROBE

(OPTIONAL)

RED BLK

X174X174

3

2

1

X184

CONNECT TO BLK WIRE (AT X185) FROM K5

X184

CONNECT TO BLK WIRE (AT X185) FROM K5

X182

CONNECT TO TERMINAL 1 ON CB1

X182

CONNECT TO TERMINAL 1 ON CB1

1

M

M8

MOTOR, CONDENSER FAN

M

M8

MOTOR, CONDENSER FAN

-+

S35

SWITCH, A/C

S35

SWITCH, A/C

12

X199X199

ABCDE

F

A

B

C

D

E

F

1

2

1

K8

RELAY, HVAC

(OPTIONAL)

K8

RELAY, HVAC

(OPTIONAL)

86 85

87a
87

30

WIRING SCHEMATIC 1 of 3

ELECTRICAL SYSTEM

CAB WIRING

revised 8/09

74 - FORM NO. 56043129 - SR 1900

ENGINE HARNESS FOR GM 1.6L GAS

ELECTRICAL SYSTEM

GASOLINE SENSOR INTERFACE

BOSCH THROTTLE

INJECTOR #1

INJECTOR #2

INJECTOR #3

INJECTOR #4

FUEL PUMP RELAY

FUEL PUMP

BATT +

GROUND

ALTERNATOR

ALTERNATOR+

ALTERNATOR -

DIAGNOSTIC
CONNECTOR

CONNECTOR 1

VEHICLE INTERFACE CONNECTORS

CONNECTOR 2

B

L

H

J

I

E

D

F

G

A

K

C

EGO 2

EGO 1

ECT

BOSCH_TMAP

OIL PRESSURE SENSOR

IGNITION COIL

CRANK SENSOR

GROUND

POWERRELAY

IGNITION

STARTERRELAY

STARTER
SOLENOID

ECM

STARTER

VSW

GCP 90 WAYCONNECTOR

Q

FORM NO. 56043129 - SR 1900 - 75

ELECTRICAL SYSTEM

ENGINE HARNESS FOR GM 1.6L LPG

POWERRELAY

EPR CONNECTOR

LPG TEMPERATURE

GCP 90 WAYCONNECTOR

BOSCH THROTTLE

BATT +

GROUND

ALTERNATOR

ALTERNATOR+

ALTERNATOR -

DIAGNOSTIC
CONNECTOR

CONNECTOR 1

VEHICLE INTERFACE CONNECTORS

CONNECTOR 2

N

L

H

J

I

E

D

F

G

A

K

C

EGO 2

EGO 1

ECT

BOSCH_TMAP

OIL PRESSURE SENSOR

IGNITION COIL

CRANK SENSOR

GROUND

EPR

IGNITION

STARTERRELAY

STARTER

SOLENOID

ECM

STARTER

VSW

M

LOCKOFF

P

76 - FORM NO. 56043129 - SR 1900

ENGINE HARNESS FOR GM 1.6L GAS (Petrol) Tier 3

ELECTRICAL SYSTEM

FORM NO. 56043129 - SR 1900 - 77

ELECTRICAL SYSTEM

ENGINE HARNESS FOR GM 1.6L LPG Tier 3

78 - FORM NO. 56043129 - SR 1900

LT GREEN/PURPLE 18

LT GREEN/BLACK 18

BLUE/WHITE 18

BLUE/PINK 18

LT GREEN/RED 18

BLACK/LT GREEN 18

DK BLUE/ORANGE 18

PURPLE/YELLOW 18

UNUSED

GREEN/YELLOW 18

LT BLUE/PINK 16

DK BLUE 18

PINK/YELLOW 16

BLACK/RED 16

PURPLE 16

PINK 18

S 5V EXT 2 (FPP2 ONLY)
R 5V RTN 2
P CAN1 ­N CAN1 +
M 5V EXT 1
L 5V RTN 1
K FPP1
J FPP2/IVS
H FUEL SELECT (AUX DIG 1 )
G MIL
F START COMMAND
E AUX PWM 1
D FUEL PUMP +
C FUEL PUMP ­B ALT EXCITE
A VSW

PINK/DK GREEN 16

TAN/DK GREEN 18

RED/BLACK 18
RED/WHITE 18

TAN/BLACK 18

TAN/RE

D 18
GRAY/DK BLUE 18
GRAY/ORANGE 18

DK BLUE/YELLOW 18
YELLOW/DK BLUE 18

TAN 18

BLACK 16

GRAY 18
BROWN/WHITE 16
WHITE/BROWN 16

S 12V RELAYED POWER
R AUX ANA PD1
P VS ­N VS +
M AUX DIG 3
L AUX DIG 2
K GOV SELECT 1
J GOV SELECT 2
H AUX ANA PU1
G AUX ANA P U2
F AUX PWM 2
E GROUND
D TACH
C AUX PWM 5
B AUX PWM 5 RECIRC
A UNUSED

BLACK/LT GREEN 18
LT GREEN/WHITE 18

LT GREEN/RED 18

WHITE/LT GREEN 18

A
B
C
D

ECM Detail

CONNECTOR 1

CONNECTOR 2

BLACK/LT GREEN 18

LT GREEN/RED 18

DK GREEN 18

ORANGE 18

BLUE/PINK 18

BLUE/WHITE 18

1 ANARTN
2 5V REF
3 PC TX
4 PC RX
5 UNUSED
6 UNUSED
7 CAN1 +
8 CAN1 -

GASOLINE SENSOR INTERFACE

TAN/BRN 16-1
GRN/YEL 18-1
BLU/PINK 16-1

PINK/YEL 16-1
BLK/RED 16-1
PINK 16-7
PINK 16-4

S
R

CAN1 (-) P

CAN1 (+) N

M

L

K

J

FUEL SELECT H

MIL OUTPUT G

STARTCOMMAND F

E

FUEL PUMP (+) D

FUEL PUMP (-) C

ALT.EXCITE B

IGN. SWITCH INPUT A

X1

GRA/BLU 18-1

TAN 18-1

S
R
P
N
M

L

THROTTLE INPUT K

(12V FOR HIGH SPEED)

H
G

COOLANT TEMP.OUTP UT F

E
D
C
B
A

X2

WHT/GRN 18-1
GRN/RED 18-1
GRN/WHT 18-1
BLK/GRN 18-1

D
C
B
A

X78

(GASOLINE

MODELS ONLY)

DIAGNOSTIC CONNECTOR

Machine

Harness Connectors

ECM

Harness Connectors

Wiring

Harness Wiring Harness Component Description

Item

A ECM Wiring Connector (90 Pins)
B Gasoline/Petrol Fuel Sensor Interface Connector (fuel pressure

regulation and temperature sensor manifold assembly)

C Engine Diagnostic Communication Port (8 Pin)

(MIL shorting locatio n)

D Ignition Coil Pack Wiring Connector
E Engine Oil Pressure Switch

F Crankshaft Position Sensor Connector
G Throttle Fly Actuator Motor Connector (Bosch)
H EGO #1 Sensor Wiring Connector

I Combined TMAP Engine Air Temperature and MAP Sensor Wiring

Connector

J Eng in e Coolant Temperature (ECT) Sensor Connector
K Engine Starter Solenoid Wire Conn ector

L EGO #2 Se nsor Wiring Connector
M LPG Fuel Lockoff Wiring Connector
N LPG Temp Sensor Wiring Connector
P EPR Connector (LPG) Fuel Regulator
Q Gasoline Fue l Injectors

Definition of Terms for Computerized Engine Controllers

• ANA-RTN:

• ECM: Engine Control Module

• EGO: Exhaust Gas Oxygen Sensor (O2)

• EPR: Ele

ctronic Pressure Regulator

• IAT: Intake Manifold Air Temperature

• MAP: Intake Manifold Absolute Pressure

• MIL: Malfunction Indicator Ligh t

• VSW: Switched Battery Voltage

• VBAT: Battery Voltage

ELECTRICAL SYSTEM

J2

ELECTRICAL SYSTEM

connection

J1

connection

FIGURE 1

Access windows

J4

9 pins Touch Pad Display

J3

11 pins Touch Pad Switches

Pin 1 is
labeled

J3 shown

FORM NO. 56043129 - SR 1900 - 77

ELECTRICAL SYSTEM
PROGRAMMABLE CONTROL OPTIONS

Foot Pedal Neutral Position and Dead-band Adjustment:

FACTORY DEFAULT: 2
RANGE: 1 - 3

The various scrub and sweep functions on the Falcon are activated when the foot pedal is moved from the neutral position. The engine neutral-start
relay is also activated when the foot pedal is moved from the neutral position. These functions are triggered via a position sensor mounted on the
hydrostat. Whenever adjustments are made to the hydrostat unit, the neutral position will need to be programmed. Also, the neutral dead-band
(sensitivity) can be adjusted if necessary. To set the neutral position and adjust the neutral dead-band perform the following steps:

1) Turn the main power key switch to the off position.

2) Depress the foot pedal to the full reverse position.

3) Allow the foot pedal to slowly return to the neutral position and do not move the pedal during the remainder of this procedure.

4) Press and hold the engine speed switch.

5) While holding the engine speed switch turn the main power key switch to the on position.

6) Continue to hold the engine speed switch until all indicators turn off (approximately two seconds).

7) Release the engine speed switch.

8) The service indicator will now be lit. Pressing and releasing the engine speed switch will increase the deadband to the middle range.
Pressing and releasing the engine speed switch again will increase the deadband to the maximum range. The next press will return the
deadband to the minimum range. The service indicator will be on steady if the minimum range is selected, it will ash at a slow rate if the
middle range is selected, and it will ash at a fast rate if the maximum range is selected.

9) To save the new setting, turn the main power key switch to the offposition.

10) The new setting will be saved and will remain in effect until it is changed again.

RecallOfStoredFaultCodes:

Whenever an electrical system fault is detected by the main control unit, one or more fault codes are displayed and stored by the control unit. If it
is desired, the fault code (if any) from the previous operation of the machine can be recalled for troubleshooting purposes. To recall the last stored

fault codes perform the following steps:

1) Turn the main power key switch to the off position.

2) Press and hold the horn switch.

3) While holding the horn switch, turn the main power key switch to the on position.

4) Continue to hold the horn switch until all indicators turn off (approximately two seconds).

5) Release the horn switch.

6) If there were previously no error codes stored, the service indicator will be lit continuously. If error codes were stored, the service indicator will
now ash the stored code(s).

7) To clear the stored codes press and release the horn switch. The service indicator will light continuously.

8) To exit the error code recall mode, turn the main power key switch to the off position.

78 - FORM NO. 56043129 - SR 1900

ELECTRICAL SYSTEM
PROGRAMMABLE CONTROL OPTIONS

Automatic Shaker Operation:

FACTORY DEFAULT: ON
RANGE: ON, OFF

The dust control lter shaker can be programmed to automatically activate each time the main broom is turned off to automatically clean the lter.

To turn this feature on or off perform the following steps:

1) Turn the main power key switch to the off position.

2) Press and hold the shaker switch.

3) While holding the shaker switch turn the main power key switch to the on position.

4) Continue to hold the shaker switch until all indicators turn off (approximately two seconds).

5) Release the shaker switch.

6) Pressing and releasing the shaker switch will alternately turn the automatic shaker feature on or off. If the feature is on the indicator on the
shaker switch will be lit. If the feature is off the indicator will be off.

7) To save the new setting, turn the main power key switch to the offposition.

The new setting will be saved and will remain in effect until it is changed again.

FORM NO. 56043129 - SR 1900 - 79

Nilfi sk-Advance A/S
Sognevej 25
DK-2605 Brøndby
Denmark
Tel: [phone]
Fax: [phone]
www.nilfi sk-advance.com