electrical vol 2 manual -...

Price $12.00

ALL MODELSSERIAL NUMBERS 470000 THRU 6299999

SERVICE MANUALELECTRICAL TROUBLESHOOTING

VOLUME 2

Form 172111-160216Printed in U.S.A.

THE GRASSHOPPER COMPANYMoundridge, Kansas 67107 U.S.A.

(620) 345-8621GRASSHOPPERMOWER.COM

2

This manual has been developed to diagnose component failures only. It will not indicate a problem in the wiring or terminals. For ex-ample, if the troubleshooting guide indicates that the left steering switch is defective and replacing the left steering switch does not solve the problem; then you may have bad terminals or wiring to that switch.

Consult the operator's manual wiring diagram for the specific year and model of the ma-chine you are working on for troubleshooting. For further assistance, contact The Grass-hopper Company, service department at (620)345-8621.

Copyright © 2017, 2016, 2014, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2002, 2001, 1999, 1998, and 1997 by The Grasshopper Company. The following material is proprietary information. All rights reserved. Reproduction or dissemination in any form by any means is prohibited, except by express written permission from The Grasshopper Company.

INTRODUCTION

Rev. 11-01

3

PAGEINTRODUCTION 2

SWITCH FUNCTIONS 5-6

TROUBLESHOOTING CONTROL RELAYS All Kubota Gasoline Models ..............................................................................................7 All Kubota Diesel Models ..................................................................................................7 Control Relay - All Kubota Models ....................................................................................8 Circuit Board Diode Problems - All Models .......................................................................8

FUSE BLOCK DIAGRAMS 9

TESTING SAFETY SYSTEM FOR PROPER OPERATION All Briggs, Kawasaki & Kohler Models ...........................................................................10 All Kubota Models ...........................................................................................................11

BATTERY CHARGING SYSTEM All Kawasaki Models ................................................................................................. 12-13 All Briggs & Kohler Models ..............................................................................................14 All Kubota Models with Green/Smooth Alternators . ......................................................15 All Kubota Models with Aluminum/Finned Alternators .....................................................16

ENGINE WILL NOT CRANK 120, 124, 126, 226V, all 600 Series Models except 618 2003 & up; 718 Briggs ...... 18-19 All Briggs Big Block Models, 120K, all 200 Series except 226V, 700 Series Kohler Models, 618 2003 & Up & all Kawasaki models................. ................................................... .20-21 All Kubota Models ..................................................................................................... 22-23

ENGINE WILL CRANK, BUT NOT START All Briggs, Kawasaki & Kohler Models ............................................................................24 All Kubota Gasoline Models ...........................................................................................25 All Kubota Diesel Models except those with D902 Engines. ..........................................26 Kubota Diesel Models with D902 Engines ......................................................................27

ENGINE STARTS, BUT DIESWHEN STEERING LEVERS ARE BROUGHT IN OR PTO SWITCH IS ENGAGED All Briggs, Kawasaki & Kohler Models ............................................................................28 All Kubota Models .........................................................................................................29

TABLE OF CONTENTS

Rev. 01-11

(continued)

4

TABLE OF CONTENTS(CONTINUED)

PAGEENGINE STARTS, BUT DIESWHEN KEY SWITCH IS RELEASED All Kubota Diesel Models except those with D902 Engines. ..................................... 30-31 Kubota Diesel Models with D902 Engines ......................................................................32 Briggs, Kawasaki & Kohler Models .................................................................................33

ENGINE STARTS AND RUNS, BUT WILL NOT SHUT OFF Kubota Diesel Models with D902 Engines ................................................................ 34-35

TROUBLESHOOTING PTO CLUTCH All Models except Kubota ................................................................................................36 All Kubota Models ..........................................................................................................37 Acceptable Clutch Resistance Range in Ohms ..............................................................38

TROUBLESHOOTING ELECTRIC LIFT Electric Lift Does Not Operate ................................................................................... 39-42 Wiring Diagram ...............................................................................................................43

HYDRAULIC LIFT DOES NOT WORK Separate Tilt Switch/Delay Timer Style ..................................................................... 44-45 One Piece Tilt Switch/Delay Timer Style ................................................................... 46-47

Rev. 10-08

5

Ignition switch, part no. 183806.(All Briggs, Kawasaki & Kohler Models). M Magneto terminal. S Starter terminal. B Battery terminal. L Lights, accessory terminal. G Ground terminal.

Ignition switch, part no. 183827.(All Kubota Models). 30 Battery terminal. 50 Starter terminal. AC Accessory terminal. 17 Glow plug terminal (Diesel only). 19 Glow plug indicator terminal (Diesel only).

Brake switch, part no. 183894.NC (normally closed) - means that the con-

tact is closed and current will fl ow between these two terminals. When the button is depressed, these two terminals become open.

NO (normally open) - means that the con-tact is open with the switch mechanism released. When the button is depressed, these two terminals become closed.

The dotted line indicates an electrical connec-tion between the two terminal posts.

SWITCH FUNCTIONS

�

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NC NO

NC NO

RELEASED

DEPRESSED

Rev. 03-05

6

Left and right steering switch, part no. 183860.NC (normally closed) - means that the con-

tact is closed with the switch mechanism released. The contact position is reversed when the switch lever is depressed.

NO (normally open) - means that the contact is open with the switch mechanism re-leased. The contact position is reversed when the switch lever is depressed.

The dotted line indicates an electrical con-nection between the two terminal posts.

PTO switch, part no. 183925.The dotted line indicates an electrical con-nection between the two terminal posts.

Seat switch, part no. 183870.The dotted line indicates an electrical con-nection between the two terminal posts.

SWITCH FUNCTIONS

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7

ALL KUBOTA GASOLINE MODELS 1. Control relay - inspection. A. Control relay A has 2 red wires, 1

black wire, 1 yellow wire and 1 green wire in the relay socket.

B. Control relay B has 3 blue wires and 1 green wire in the relay socket.

2. Assuming the main fuse, PTO fuse, igni-tion fuse are good, failure of control relay A or associated wiring will be evidenced by the following three symptoms:

A. PTO clutch will not engage. B. Hourmeter will not run. C. Ignition coil will not have any voltage

on the positive terminal*

3. Assuming the start fuse is good, failure of control relay B or associated wiring will result in starter solenoid not engaging; thus the starter motor will not operate.

ALL KUBOTA DIESEL MODELS 1. Control relay - inspection. A. Control relay A has 2 red wires, 1 black

wire, 1 yellow wire and 1 green wire in the relay socket.

B. Control relay B has 3 blue wires and 1 green wire in the relay socket.

2. Assuming the main fuse, PTO fuse, ignition fuse are good, failure of control relay A or associated wiring will be evidenced by the following three symptoms:

A. PTO clutch will not engage. B. Hourmeter will not run. C. Fuel solenoid will pull in but not hold.

3. Assuming the start fuse is good, failure of control relay B or associated wiring will re-sult in starter solenoid not engaging; thus the starter motor will not operate.

TROUBLESHOOTING CONTROL RELAYS

Figure 1

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Rev. 12-02

* (On 432 and 932, the plug which leads to igniter assembly will not have any voltage).

8

CONTROL RELAY - ALL KUBOTA MODELSAssuming a normal diode on the circuit , board, relay B is affected by a problem in the circuit containing the PTO switch, and left and right steering switches.

Assuming a normal diode on the circuit board, relay A is affected by a problem in the circuit containing the PTO switch, and left and right steering switches. It is also affected by a problem in the circuit containing the parking brake switch and seat switch.

CIRCUIT BOARD DIODE PROBLEMS - ALL MODELSRefer to the illustration below (fi gure 2) to lo-cate the diode on the circuit board between pad R and A.

Open Diode

An open diode will result in the following symptoms:

Assuming steering levers out and PTO switch off, engine can be cranked and started only with driver on the seat and the parking brake in the 'OFF' position.

If driver gets off of the seat or puts parking brake to the 'ON' position, the engine will die.

Shorted Diode

Assuming an operator on the seat and parking brake is 'OFF', engine can be cranked and started with PTO switch in the 'ON' position or steering levers in.

Figure 2

Circuit Board with Diode

Rev. 12-02

A

R

9

THIS PAGE IS INTENTIONALLY LEFT BLANK

10

TESTING SAFETY SYSTEM FOR PROPER OPERATION

ALL BRIGGS MODELSALL KAWASAKI MODELSALL KOHLER MODELS

Notes: Proper operation of the safety system indicates that:

1. To start the engine, both steering levers must be out, and the PTO switch must be off.

2. With the engine running and the opera-tor off the seat, the engine will die if either steering lever is brought in or the PTO switch is turned on.

3. The engine will also die if the operator gets off the seat with either steering lever in or the PTO switch turned on.

4. The engine will die if the steering levers are brought in with the parking brake on.

Rev. 03-05

Steering levers out, PTO switch 'OFF'. If engine starts, all of the above switches are functioning in

their closed position.

Turn engine 'OFF'.

Does engine crank with only left steering

lever 'IN'?

Adjust or replace left steering switch.

Yes

NoDoes engine crank

with only right steering lever 'IN'?

Does engine crank with only the PTO switch turned 'ON'?

Steering levers out, PTO switch 'OFF', operator OFF seat, parking brake 'OFF' and engine running.

Does engine die when one or both steering levers are

brought 'IN'?

No

Replace relay A.

Replace PTO switch.Yes

No

Steering levers out, PTO switch 'OFF', operator ON seat, parking brake 'ON'

and engine running. Does engine die when one or both steering levers are

brought 'IN'?

Replace brake switch.

No

Yes

Adjust or replace right steering switch.

Yes

All safety systems are functioning

properly.

Yes

No

11

TESTING SAFETY SYSTEM FOR PROPER OPERATION

ALL KUBOTA MODELS

Notes: Proper operation of the safety system indicates that:

1. To start the engine, both steering levers must be out, and the PTO switch must be off. The engine will start with the operator on or off the seat and the parking brake either on or off.

2. With the engine running and the opera-tor off the seat, the engine will die if either steering lever is brought in or the PTO switch is turned on.

3. The engine will also die if the operator gets off the seat with either steering lever in or the PTO switch turned on.

4. The engine will die if the steering levers are brought in with the parking brake on.

Rev. 12-02

Steering levers out, PTO switch 'OFF',

parking brake 'OFF', operator OFF seat and engine running.

Does engine die when left steering

lever is brought 'IN'?

Adjust or replace left steering switch.

Does engine die when right steering lever is brought 'IN'?

Yes

No

Adjust or replace right steering switch.

No

Does engine die when the PTO switch

is turned 'ON'?

Yes

Replace PTO switch.

No

Yes

To A

A

Steering levers out, PTO switch 'OFF',

parking brake 'ON', operator ON seat

and engine running.

Does engine die when steering levers

are brought 'IN'?

Replace brake switch.

Yes

No

Steering levers in, PTO switch 'OFF',

parking brake 'OFF', operator ON seat

and engine running.

Does engine die when operator raises

up off the seat?

Replace seat switch.

Yes

No

All safety systems

properly.are functioning

12

BATTERY CHARGING SYSTEM

Rev. 04-11

ALL KAWASAKI MODELS

Notes: 1. Voltage tests are performed with a DC/AC

voltmeter. 2. Tests are performed after regulator fuse is

checked. 3. AC voltage tests are performed with engine

at 3600 rpm.Yes

No

No

Yes

Engine is notrunning.

Attach DC voltmeter to negative and positive

posts of battery.

Does voltmeter read12.2 DC volts or above?

Battery is in goodcondition.

Test and rechargebattery.

Start engine andobserve batteryvoltage at full

throttle.

Is voltage at batterybetween 13 and 14.7

DC volts?

Charging system is functioning

properly.

Key switch is in'RUN' position.Voltage test isperformed witha voltmeter to battery ground (negative post)

unless otherwisenoted.

Does DC voltageappear at red wire

at voltageregulator plug

to ground?

If regulator fuse isgood, red wire on

harness side of 6 wayengine plug should

show battery voltage.Check connections

in 6 way plug.

No

No

Yes

continues onnext page

TO A

13Rev. 02-16

BATTERY CHARGING SYSTEM(CONTINUED)

ALL KAWASAKI MODELS

Keyswitch is in "RUN" position. Does voltage

appear at red/white trigger wire at voltage

regulator to ground?

Disconnect regulator-rectifier plug. Place ACvoltmeter accross AC terminals in plug. Doesvoltage read less than

28 volts AC at fullthrottle?

Service Stator

Does voltage appear at red wire on trigger

wire relay to ground?

Does voltage appear at black

wire at relayto ground?

Does ground appear at greenwire at relay to battery positive

side?

ReplaceRelay

Replace regulator - rectifier

Check groundconnection at

engine.

Replace Light/AuxFuse

Replace 30 amp in-line fuse in

red wirebetween

regulator - rectifier and

relay.

Yes

Yes

Yes

Yes Yes

No No No

No

No

continued fromprevious pageA

14

ALL BRIGGS MODELSALL KOHLER MODELS




at 3600 rpm.


Rev. 04-11

Engine is not running.


posts of battery.

Does voltmeter read 12.2 DC volts or above?

Test and recharge battery.

Battery is in good condition.

Yes

No

Start engine and observe battery voltage at full

throttle.

Is voltage at battery between 13 and 14.7

DC volts?

Disconnect regulator-rectifier plug. Place AC

voltmeter across AC terminals in plug and

read voltage.

No

Does voltage read less than 28 volts AC with engine running?

Charging system is functioning properly.

Yes

Service stator.Yes

If AC voltage measures more than

28 volts replace regulator-rectifier.

No

For more detailed testing consult the

engine repair manual.

15*voltage may vary + or - 3 volts.


ALL KUBOTA MODELS WITH SMOOTH AL-TERNATORS




at full RPM.

Rev. 07-11

Engine is not running.


posts of battery.

Does voltmeter read 12.2 DC volts or above?

Test and recharge battery.


Yes

No


throttle.

Is voltage at battery between 13 and 14.7

DC volts?

Does AC voltage appear between the

2 blue wires from alternator?

A. 10 volts* at idle?B. 36 volts* AC at full

throttle?

No

Replace alternator.

Charging system is functioning properly.

Yes

No

Does DC voltage appear on white wire to voltage regulator

plug to ground?

Does voltage appear on terminal AC of

ignition switch to ground?

No

Yes

Does green wire on the regulator plug

between the two blue wires show ground

when tested to battery positive?

Check ground connection.

No

Yes

Check ignition switch for continuity from

terminal AC to terminal 30.

No

Check white wire and terminals from terminal AC of

ignition switch to voltage regulator.

Yes Is voltage at red wire of voltage regulator

13-14.7 DC volts to ground?

Replace voltage regulator.

No

Check red wire, regulator fuse andterminals from terminal 30 of ignition switch to voltage regulator.

Yes

Yes

16

ALL KUBOTA MODELS WITH ALUMINUM/FINNED ALTERNATORS

Notes: 1. Tests are performed after regulator fuse is

checked. 2. Set voltmeter to DC voltage for testing on

this page.


Rev. 09-10

Attach voltmeter to negative andpositive posts

of battery.

Does voltmeter read 12.2 volts

or above?

Test and rechargebattery.


Yes

No


throttle.

Is voltage at battery between

13 and 14.7 volts?

Service alternator - regulator assembly.

No

Charging systemis functioning

properly.

Yes

Yes

Engine isnot running.

17

THIS PAGE IS INTENTIONALLY LEFT BLANK

18

ENGINE WILL NOT CRANK

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Rev. 01-11

Test battery for

condition and

charge.

Steering levers out,

PTO switch 'OFF'.

Voltage tests are

performed with a

voltmeter or test light

to battery ground.

Key switch is in

'START' position for

each test.

Does voltage appear

from terminal 'C' of

start fuse?

(See Figure 9 or 10)

Problem is the key

switch or the power

to the key switch.

Replace start fuse.

Does voltage appear

from terminal 'D' of

start fuse?

Yes If there is voltage at

terminal 'D' of start

fuse, there should

also be voltage on

blue wire at starter

solenoid.

Yes

No

Yes

To A

continues on

next page

No

120, 124 & 126 BRIGGS226V BRIGGSALL 600 SERIES MODELS (EXCEPT 6182003 & UP) 718 BRIGGS

Notes: 1. Voltage tests are performed with a DC volt-

meter.

19

Figure 9 Figure 10

Fuse Block Test Points120, 124, 126, 226V & 600 Series

Rev. 02-16

Fuse Block Test Points718 Briggs

ENGINE WILL NOT CRANK(CONTINUED)

10

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7.5

AKey switch is in

'OFF' position foreach test. You are

now testing a groundcircuit. All tests will

be to the batterypositive side.

Does the yellow wire at starter solenoid show ground when

tested?

Does either yellow wire on PTO switch show ground when

tested?

Check starter solenoid. Problem

could be starter solenoid or starter.

Yes

No

Replace PTO switch.Yes

Do either yellow wires on right

steering switch show ground when tested?

No

Right steering switch is defective or out of

adjustment.

Yes

Do either yellow wires on left steering switch show ground

when tested?

No

Left steering switch is defective or out of

adjustment.

Yes

Check ground junction with green

wires on engine.

No

continued from previous page

120, 124 & 126 BRIGGS226V BRIGGSALL 600 SERIES MODELS (EXCEPT 618 2003 & UP)718 BRIGGS

Fuse block styles will vary.Be sure you are checking designated fuse.


20


329B, 335B, 729BT6 & 735BT6 BRIGGS BIG BLOCK MODELS120K KOHLERALL 200 SERIES MODELS EXCEPT 226VALL 700 SERIES KOHLER MODELS618 2003 & UP ALL KAWASAKI MODELS

Notes: 1. Do not forget to plug starter relay back in

when fi nished testing.

Figure 11

Rev. 02-16

Test battery forcondition and

charge.

Steering levers out,PTO switch 'OFF'.

Voltage test isperformed with a

voltmeter or test lightto battery ground.

Does voltage appear from terminal 'C' ofstart fuse?

Problem is the keyswitch or the powerto the key switch.

Replace start fuse.

Does voltage appear from terminal 'D' ofstart fuse?

Yes

No

Does voltage appear on

terminal 85 ofstarter relay?

Yes

No

YesTo A


Check wires from start

fuse to starter relay.

No

OK

Does voltage appear on terminal 87 (inline fuse

wire) of starter relay?

Check 30 amp in-line fuse

in wire between starter relay and starter solenoid.

No

Yes

Key switch is in'START' position for

each test.

KEY

SWITCH

(in start position)

PTO

SWITCH

(PTO OFF)

STEERING SWITCHES

RIGHT LEFT

(Steering levers out)

BLUE START FUSE

RED

INLINE FUSEHOLDER

STARTERRELAY

STARTERGREEN / YELLOW

RTSTR

LTSTR

S

M

B G

L 87

86 87a 85

30

YELLOW YELLOW

YELLOW

RED

RED

BLUE

BLUE

21


329B, 335B, 729BT6 & 735BT6 BRIGGS BIG BLOCK MODELS120K KOHLERALL 200 SERIES MODELS EXCEPT 226VALL 700 SERIES KOHLER MODELS618 2003 & UP ALL KAWASAKI MODELS

Figure 14

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Starter Relay Testing

Fuse Block Test Points

Rev. 02-16

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700 Series Kohler ModelsAll Kawasaki Models

120KAll 200 Series Models618 2003 & up All Briggs Big Block Models

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

ADoes voltage appear

on terminal 30 ofstarter relay?

continuedfrom

previouspage

Check startersolenoid.

Problem couldbe starter

solenoid orstarter.

Remove the starterrelay. It is located on

the inside of theframe, on the leftside of the engineon Kohler modelsand on the right

side of theKawasaki models.

Does the yellow wirewithout the in-linefuse show ground

when tested?

Replace thestarter relay.

ReplacePTO switch.

Does either yellowwire on PTO switchshow ground when

tested?

Does either yellowwire on right

steering switch showground when tested?

Right steeringswitch is

defective orout of

adjustment.

Does either yellowwire on left steeringswitch show ground

when tested?

Check groundat engine.

Left steeringswitch is

defective orout of

adjustment.

Key switch is in'OFF' position foreach test. You are




Figure 13


22


ALL KUBOTA MODELS

Figure 15

Rev. 02-16

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Test battery for condition and

charge.

Steering levers out, PTO switch 'OFF'. Voltage test is performed with a

voltmeter or test light to battery ground.

Does voltage appear from terminal 'I' of

start fuse?

Problem is the key switch or the power to the key switch.

Replace start fuse.

Does voltage appear from terminal 'J' of

start fuse?

Yes

No

Does voltage appear on blue wire at

starter solenoid?

Yes

No

Yes

To A

continues on next page

Check starter solenoid. Problem

could be starter solenoid or starter.No

OK

Key switch is in'START' position for

each test.

23

ALL KUBOTA MODELS

Figure 17

Figure 16

2323�

*+

2524


Relay B

Rev. 02-16


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Does the green/ yellow wire on the

plug of relay 'B' show ground when tested?

Do both wires on left steering switch show ground when tested?

Replace relay 'B'.Yes

NoDo both yellow wires

on right steering switch show ground

when tested?

Yes

Before replacing the steering switch,

check adjustment. If it does not click

when steering levers are moved in and out

adjust the switch.

No

Replace left steering switch.

No

Remove relay 'B'. It is the relay with 3 blue wires and 1 yellow wire in the

plug.

A

Replace PTO switch.

Before replacing the steering switch,

check adjustment. If it does not click

when steering levers are moved in and out

adjust the switch.

No

Replace right steering switch.

Yes


Key switch is in'OFF' position foreach test. You are




24

If engine cranks, butwill not run; the

safety switches arefunctioning properly.

Test engine forspark. Does spark

occur at spark plug?

Disconnect yellowsafety wire* fromengine and retest.Does spark nowoccur at spark plug?

Reconnect yellowsafety wire. There

is an engineignition related

problem. Consultengine repair

manual.

Reconnect yellow safety wire. Replace safety relay in console.

Use part number 184271 relay for all 100, 200, 300 & 600 tractors.

Use part number 184271 relay for

700 series tractors with serial number 6399999 & below.

Use part number 184266 relay for 700 series tractors with serial

number 6400000 & above.

Yes

No

Check for fuelsystem problem or

engine failure.

Yes

No

Warning!

* Briggs engine excluding Briggs Big Block:

Kohler & Briggs Big Block engine:

Kawasaki engine:

Single yellow wire on left side of engine.

Disconnect plug on left side of engine.Using a small screwdriver, release thelock tab on yellow wire in tractor side plugand remove wire. Reconnect the plug.

Disconnect plug on right side of engine.Using a small screwdriver, release thelock tab on yellow wire in tractor side plugand remove wire. Reconnect the plug.

With the yellow wire disconnected from the engine, all safetyfunctions and the key switch will be inoperable in their ability toshutoff the engine. This step is performed for test purposes only.Under no conditions should the PTO be turned ON or the machinebe driven with the yellow wire disconnected! Always reconnectthe yellow wire to the engine after this test.

ENGINE WILL CRANK, BUT NOT START

ALL BRIGGS MODELSALL KAWASAKI MODELS ALL KOHLER MODELS

Rev. 01-14

Notes: 1. Tests are performed after LIGHT/AUX fuse

has been checked on all models, check fuel pump fuse on Kawasaki Models.

25


ALL KUBOTA GASOLINE MODELS

Notes: 1. All tests are made with wires in place on

their respective switches. 2. Refer to fuse block diagram for terminal

locations. 3. Refer to “Troubleshooting Control Relays”

for information on the diode and control relays.

4. If engine will crank, control relay “B” is functioning properly. This means that the PTO switch, right steering switch and left steering switch are functioning properly.

Figure 19

Figure 18


Rev. 01-14

� 7. 5

� 9 +

� 64 5

� 0

$ � � ? 9 �

� � : 0 ; 9 �

0 $ : >

� > � 0 8

: � ( : : $ (0 $ : >

� 9 + � � ; : 9

� 9 + � � ; : 9

� 9 + � > � 0 8

8 9 �

� � : 0 ;< : � � � � ! � � � � � � � =

1 � : (

? ' � 9

: � ( : : $ (

? ' � 9

� 9 > � � �

� 9 > > $ �

� � � $ � (

�

3

* For models 329/729 & 432/932, test for volt-age at red wire in white 2-way plug located di-rectly below carburetor on engine.

10

PT

O F

US

E

7.5

15

30

30

IGN

/SO

L F

US

E

MA

IN F

US

E

ST

AR

T F

US

E

RE

GU

LA

TO

R F

US

E

ABEFGH

DCJI

AC

CE

SS

OR

Y S

LO

T

AC

CE

SS

OR

Y S

LO

T

No

Yes

Yes

No

Yes

No

Yes

No

No

Yes


PTO switch 'OFF'.

Voltage tests are

performed with a


to battery ground

(negative post).

Key switch is in

'RUN' position for

each test until

otherwise noted.

Does voltage appear

from black wire on

positive terminal of

ignition coil to

ground? *

Problem is in ignition

coil or distributor.

Consult Kubota

engine manual for

repair.

Replace control relay

A.

Does voltage appear

from terminal 'G' of

ignition fuse to

ground?

Replace ignition

fuse.

Does voltage appear

from terminal 'A' of

main fuse to ground?

Does voltage appear

from terminal 'B' of


Replace main fuse.Does voltage appear

from terminal 30

(battery) of key

switch to ground?

Test battery.

Replace key switch.


26


PTO switch 'OFF'.

Voltage tests are

performed with a


to battery ground

(negative post).

Key switch is held in

'START' position for

each test until

otherwise noted.

No

Does voltage appear

from 'PULL' wire of

the fuel solenoid to

ground?

Does fuel solenoid

engage while

cranking?

No

Test in-line fuse and

fuse holder.

Yes Problem is in ignition

coil or distributor.

Consult Kubota

engine manual for

repair.

Yes This is an engine

related problem.

Consult engine

repair manual for

further information.

Yes

No

Key switch is OFF

during each test.

Does 'COMM'

terminal of fuel

solenoid show

ground?

No

Repair ground

connection to

'COMM' terminal of

fuel solenoid.

Does resistance

measure

approximately .2 to

.5 ohms from 'PULL'

terminal to 'COMM'

terminal of fuel

solenoid?

Yes

No

Replace fuel

solenoid.

Fuel solenoid

linkage is binding or

sticking.

Yes


ALL KUBOTA DIESEL MODELSEXCEPT THOSE WITH D902 ENGINESNotes: 1. All tests are made with wires in place on

their respective switches. 2. Refer to fuse block diagram for terminal

locations. 3. Refer to “Troubleshooting Control Relays”

for information on the diode and control relays.

4. If engine will crank, control relay “B” is functioning properly. This means that the PTO switch, right steering switch and left steering switch are functioning properly.

Figure 20

1

1730

2

4

HO

LD

1950

AC

-

+

3

CO

MM

RELAY A

PU

LL

TO SAFETY

SWITCHES

STARTER

Battery Cable

FUEL

SOLENOID

FUELSOLENOIDMODULE

IN-LINE

FUSEHOLDER

RED

KEY

SWITCH(In run position)

RED / WHITE

RED / WHITE

RED

RED

BLACK

BLACK

BLACK

BLACK WHITE

BLACK

GREENYELLOW

/ BROWN

MAINFUSE

SOLENOIDFUSE

Rev. 10-08

27


KUBOTA DIESEL MODELS WITH D902 ENGINES

If engine will crank, control relay "B" is func-tioning properly. This means that the PTO switch, right steering switch and left steering switch are functioning properly.

Check if fuel solenoid is binding or has a bro-ken spring. See Owner's Manual for location of the manual fuel stop lever. If lever can be pushed forward against spring pressure, fuel solenoid is operating properly. If lever is already forward, is binding, or has no spring resistance, replace fuel solenoid.

Rev. 10-08

28

ENGINE STARTS, BUT DIES WHEN STEERING LEVERS ARE BROUGHT IN OR PTO SWITCH IS ENGAGED

ALL BRIGGS MODELSALL KAWASAKI MODELSALL KOHLER MODELS

Notes:If engine will crank and start, the PTO switch, right steering switch and left steering switch are functioning properly. The problem must be the parking brake or seat switch.

Rev. 02-16

Steering levers IN, operator ON seat,

parking brake 'OFF'. Test will be to the

battery positive side.

If neither side of the seat switch shows ground, replace

parking brake switch.

Does only one side of the seat switch

show ground?(Note: wires must be installed on switch and switch must be

activated.)

No

Replace seat switch.Yes

29

ENGINE STARTS, BUT DIES WHEN STEERING LEVERS ARE BROUGHT IN OR PTO SWITCH IS ENGAGED

ALL KUBOTA MODELS

Notes:If engine will crank and start, control relay A and control relay B are functioning properly. The PTO switch, right steering switch and left steering switch are functioning properly. The problem must be the parking brake or seat switch.

Figure 21

NC NO

YELLOW

GREEN

Brake switch view

Brake Switch Test Points

Rev. 02-16

Operator OFF seat, parking brake 'OFF',

all wires are connected to

switches. You are testing a ground

circuit. All tests will be to the battery

positive side.

Replace parking brake switch.

Do both the yellow and green wires on brake switch show

ground when tested?

No

Replace seat switch.Yes

Key switch is 'OFF' for this test.

30

Steering levers OUT, PTO switch 'OFF',

parking brake 'OFF'. Voltage tests are performed with a

voltmeter or test light to battery ground (negative post), unless otherwise

noted.

Replace key switch.

Does voltage appear from terminal 'A' of

main fuse to ground? (Refer to figure 23)

No

Yes

Key switch is in 'RUN' position for each test unless otherwise noted.

No

Replace main fuse.

Does voltage appear from terminal 'B' of


No

Yes Does voltage appear from terminal '1' of

fuel solenoid module to ground? (Refer to

figure 22)

No

Yes

Does voltage appear from terminal 'G' of

ignition/solenoid fuse to ground?

No

Yes

Replace control relay A. This is the relay

with 1 yellow, 1 black and 2 red wires.

Replace ignition/solenoid

fuse.

To A

continues on next page

Figure 23Figure 22

@;<*

ALL KUBOTA DIESEL MODELSEXCEPT THOSE WITH D902 ENGINES


their respective switches. 2. Problem is in the 'HOLD' circuit of the fuel

solenoid. 3. Relay A is the relay with 1 yellow, 1 black

and 2 red wires.

Fuse Block Test PointsFuel Solenoid ModuleTest Points

Rev. 12-16

10

PT

O F

US

E

7.5

15

30

30

IGN

/SO

L F

US

E

MA

IN F

US

E

ST

AR

T F

US

E

RE

GU

LA

TO

R F

US

E

ABEFGH

DCJI

AC

CE

SS

OR

Y S

LO

T

AC

CE

SS

OR

Y S

LO

T

ENGINE STARTS, BUT DIES WHEN KEY SWITCH IS RELEASED


31

Figure 24

ALL KUBOTA DIESEL MODELSEXCEPT THOSE WITH D902 ENGINES

1

1730

2

4

HO

LD

1950

AC

-

+

3

CO

MM

RELAY A

PU

LL

TO SAFETY

SWITCHES

STARTER

Battery Cable

FUEL

SOLENOID

FUELSOLENOIDMODULE

IN-LINE

FUSEHOLDER

RED

KEY


RED / WHITE

RED / WHITE

RED

RED

BLACK

BLACK

BLACK

BLACK WHITE

BLACK

GREENYELLOW

/ BROWN

MAINFUSE

SOLENOIDFUSE

Rev. 02-16

A

Does ground appear from terminal '2' of

fuel solenoid module to battery

positive side?

No

Yes

Repair ground.

Does voltage appear from terminal '4' of

fuel solenoid module to ground?

No

Yes Does voltage appear from 'HOLD' wire of

fuel solenoid to ground?

No

Yes

Check fuel solenoid plug connection.

Replace fuel solenoid. Solenoid 'HOLD' to 'COMM' wires should test

approximately 11 to 16 ohms resistance.


Replace fuel solenoid MODULE.

IMPORTANT: If fuel solenoid module must be

replaced, check fuel solenoid ohms. A defective

fuel solenoid could burn out a new fuel

solenoid module. Solenoid 'HOLD' to 'COMM'

wires should test approximately 11 to 16 ohms

resistance.

ENGINE STARTS, BUT DIES WHENKEY SWITCH IS RELEASED (CONTINUED)

32

Figure 26Figure 25



their respective switches. 2. Problem is in the 'HOLD' circuit of the

fuel solenoid. 3. Relay A is the relay with 1 yellow, 1 black

and 2 red wires.


Fuel Solenoid ModuleTest Points

Rev. 01-14

PT

O F

US

E

30

30

IGN

/ R

ELA

Y A

MA

IN F

US

E

ST

AR

T F

US

E

RE

GU

LA

TO

R F

US

E

ABEFGH

DCJI

AC

CE

SS

OR

Y S

LO

T

AC

CE

SS

OR

Y S

LO

TS

TO

P S

OL.

KL

10

7.5

15

15

ABC

D E

Steering levers OUT,

PTO switch 'OFF',

parking brake 'OFF'.

Voltage tests are

performed with a


to battery ground

(negative post).

Does voltage appear

from terminal 'D' of

fuel solenoid module

to ground?

(Refer to figure 25)

No

Yes

Key switch is in

'RUN' position for

each test unless

otherwise noted.

No

Does voltage appear

from terminal 'E' of

fuel solenoid module

to ground?

No

Yes

Does voltage appear

from terminal 'G' of

ignition fuse to

ground?

No

Yes

Replace ignition

fuse.

Does voltage appear

from terminal 'A' of


(Refer to figure 26)

No

Replace key switch.

Replace control relayA. This is the relay

with 1 yellow, 1 blackand 2 red wires.

YesDoes voltage appear

from terminal 'B' of


No

Replace main fuse.

Yes Check for broken

wire between fuse

block and fuel

solenoid module.

Call Grasshopper

Service Department



33

BRIGGS, KAWASAKI & KOHLERMODELSNotes: 1. If engine cranks and starts but dies when

key switch is released, then PTO switch, right and left steering switches, carbure-tor solenoid and stop relay are functioning properly.

2. Problem is a blown light/aux. fuse, a fuse block connection or a bad key switch.

3. All tests are made with wires in place on their respective switches.

Rev. 10-08

Does voltage appearat top of

light/aux fuse to ground?

No

Does voltageappear from terminal

'L' of key switchto ground?

Yes Yes Problem is fuse

clip or wire to

carburetor solenoid.

Yes

No

Problem is light/auxfuse clip or wire from key switch to fuse.

Replace fuse.

Key switch is in'RUN' position for each test.

Steering levers out, PTO switch 'OFF'. Voltage tests are performed with a

voltmeter or test light to ground

(negative post).

No

Replace Key switch

Does voltage appearon bottom of

light/aux fuse to ground?

Yes


34

Yes continues onnext pageTO A

Turn key switch on, then off. Does

voltage appear on terminal B of stop solenoid module to battery ground for

approx. 10 seconds from timekey was

turned off?

Does coil resistance of stop solenoid measure approx.

1 Ohm to ground?

Replace stop solenoid.

Check linkage to fuel shutoff

for binding.

Key switch is in RUN position for

each test, but engine is not

running.

No

Yes

No

Yes

ENGINE STARTS AND RUNS, BUT WILL NOT SHUT OFF

Figure 28Figure 27


Fuse Block Test PointsFuel Solenoid ModuleTest Points

Rev. 01-14

PT

O F

US

E

30

30

IGN

/ R

ELA

Y A

MA

IN F

US

E

ST

AR

T F

US

E

RE

GU

LA

TO

R F

US

E

ABEFGH

DCJI

AC

CE

SS

OR

Y S

LO

T

AC

CE

SS

OR

Y S

LO

TS

TO

P S

OL.

KL

10

7.5

15

15

Notes: 1. Check STOP SOLENOID fuse (15 amp).

The engine will not shut off if this fuse is blown or if fuse block terminals are loose or corroded.

2. IMPORTANT: A. For the tests on this page, unplug stop solenoid. B. Before performing tests, check ground source for fuel solenoid module. The starter plate on the right side of the engine has two ground bolts. The fuel solenoid module ground wire is green with a yellow tracer and is connected to the TOP bolt. Tighten this connec-

tion if it is loose. If connection is already tight, check for damaged wire at eyelet. 3. Check for DC voltage in all tests. 4. Steering levers out, PTO off for all tests. 5. Remember to reconnect stop solenoid when

testing is completed.

CB

A

D

E


35Rev. 02-16

Figure 29

IN RUN POSITION

BLACK

YELLOW

RED/WHITE

GREEN/YELLOW

RED

RED/WHITE

BATTERY

BLACK

BLACK

RELAY A

KEY

SWITCH

SOLENOID

RED

STOP

TO SAFETTY SWITCHES

MAIN

FUSE

FUSE

RELAY A

MODULE

SOLENOID

STOP

STOP

SOLENOID

FUSE

AE

D B

C

WHITE/RED

BLUE/WHITE

RED

RED

BATTERYCABLE

IGN/


ENGINE STARTS AND RUNS, BUT WILL NOT SHUT OFF(CONTINUED)

Yes

No

Yes


No

No

YesDoes voltage appear

from terminal D of stop solenoid module

to ground?

Does voltage appear from terminal E of

stop solenoid module to ground?

Does voltage appear from terminal G of

IGN/Relay A fuse to ground?

Replace relay A

Does voltage appear from terminal H of

IGN/Relay A fuse to ground?

Replace IGN/Relay A

fuse

Check for loose terminal in fuse block

or broken wire.

Does ground appearat terminal C of fuelsolenoid module to

battery positive side?

Does voltage appear from terminal A of


Replace key switch.

Does voltage appear from terminal B of


Replace main fuse.

Check for loose terminal in fuse block

or broken wire.

Yes

No

No No

Yes Yes

Yes ReplaceFuel Solenoid

Module

Recheck groundconnection at engine

No

36 Rev. 02-16

TROUBLESHOOTING PTO CLUTCH

ALL MODELS EXCEPT KUBOTA

Notes: 1. Test clutch by reading ohm's across clutch plug. Remove

wire connector at clutch body or at clutch lead if wires are not removable.

See chart on page 38 for acceptable resistance readings.

Figure 30

Figure 31

Fuse Block Test Points1

0

PT

O F

US

E

7.5

30

LIG

HT

FU

SE

RE

GU

LA

TO

R F

US

E

ABEFGHS

TA

RT

FU

SE

7.5

CD

All 100 Series ModelsAll 200 Series ModelsAll 600 Series ModelsAll Briggs Big Block Models

ST

AR

T F

US

E

30

7.5

RE

GU

LA

TO

R F

US

E

LIG

HT

FU

SE

GHCDAB

10

PT

O F

US

E

EF

7.5

700 Series Briggs except Big Blocks 700 Series Kohler ModelsAll Kawasaki Models

M

B

S

G

L

KEY


RED BLACK BROWN BROWN

GR

EE

N-

+

PTO

SWITCH(PTO on)

CLUTCH

PTOFUSE


No

Yes

No

Yes

No

Yes

No

Yes

Steering levers OUT, PTO switch 'ON'. Voltage tests are performed with a voltmeter or

test light to battery ground (negative post), unless otherwise noted.

Key switch is in 'RUN' position for each test, but engine is

not running.

Does voltage appear from terminal 'E' of

PTO fuse to ground?

Does voltage appear from brown wire at PTO clutch

plug to ground?

Replace PTO switch.Replace PTO fuse.Problem is the key switch or wiring from key switch to

PTO fuse.

Does green wire of tractor harness plug show ground

when tested to batterypositive side?

Test PTO clutch andterminals

(see note above).

Repair clutch ground circuit.

Does voltage appear from terminal 'F' of

PTO fuse to ground?

37

TROUBLESHOOTING PTO CLUTCH

ALL KUBOTA MODELS

Notes: 1. If engine starts and runs, relay 'A' is working properly. 2. Test clutch by reading ohm's across clutch plug. Remove wire con-

nector at clutch body or at clutch lead if wires are not removable. See chart on page 38 for acceptable resistance readings. 3. Voltage tests are performed with the seat switch wires removed and

a jumper installed across the two wires.

Warning! Jumper must be removed and wires reinstalled on seat switch after

test is complete and before machine is returned to operation.

Figure 33

Figure 32

Fuse Block Test Points1

0

PT

O F

US

E

7.5

15

30

30

IGN

/SO

L F

US

E

MA

IN F

US

E

ST

AR

T F

US

E

RE

GU

LA

TO

R F

US

E

ABEFGH

DCJI

AC

CE

SS

OR

Y S

LO

T

AC

CE

SS

OR

Y S

LO

T

Steering levers OUT,

PTO switch 'ON'.

Voltage tests are

performed with a


to battery ground

(negative post).

Replace PTO fuse.

Does voltage appear

from terminal 'F' of

PTO fuse to ground?

No

Yes

Key switch is in

'RUN' position for

each test, but

engine is not

running.

Replace PTO switch.

Does voltage appear

from brown wire at

PTO clutch plug to

ground?

No

Yes

No

Test PTO clutch and

terminals (see note

above).

Test PTO clutch and

terminals (see note

above).

YesDoes green wire of

tractor harness plug

show ground?

Repair clutch

ground circuit.

MAIN

FUSE

TO SAFETY

SWITCHES

SWITCH

RELAY A

(in run position)

BROWN

GR

EE

N

CLUTCH

PTO

SWITCH(PTO on)

PTOFUSE

BROWN

RED

YELLOW/ BROWN

RED / WHITE

RED / WHITE

BLACK

RED

50

AC

3017

19

KEY

Rev. 01-14


38 Rev. 01-11

ACCEPTABLE CLUTCH RESISTANCE RANGE IN OHMS

1" Clutch with 1" Clutch 1.125" Clutch with 1.125" Clutch

Center Stop* without Center Stop without

& 1" Spot Center Stop & 1.125" Spot Center Stop

Brake Clutch** Brake Clutch**

618 & 620T

with

Serial #

5300000 &

above

All 700 & 900

Series

Kubota &

Kawasaki

Models

* 'Center Stop' refers to the stainless steel piece located between the hold magnets. To check if

the clutch has this stop, look on the front side of the anti-rotation flange.

** The Spot Brake Clutch can be identified by a one piece plate bolted on the front side of the

anti-rotation flange.

FR

ON

T M

OU

NT

SM

ID M

OU

NT

S

2.4 - 2.61.6 - 2.0

1.6 - 2.0 2.4 - 2.6 - -

- -

- - -

- - 2.4 - 2.62.6 - 3.0

1.6 - 2.0

- - -

- - 2.4 - 2.62.6 - 3.0

1.6 - 2.0

1" Clutches 1.125" Clutches

2.6 - 3.0 - - -

All 600

Series

except 618

& 620T

with Serial#

5300000 &

above

100

Series

& 226V

200

300

400

Series

except 226V

700 Series

with Briggs

engines

excluding

Briggs Big

Block

700 Series

with Kohler

engines

& Briggs

Big Block

engines

39

TROUBLESHOOTING ELECTRIC LIFT (STRAP STYLE)PAGE 1 OF 5

ELECTRIC LIFT DOES NOT OPERATENotes: 1. For testing refer to 6-way Weather-pack

connector under seat. 2. Connector view is from back (wire side)

(see Figure 34). 3. Toggle switch is not activated.

Figure 34

Figure 35 Figure 36

GREEN/YELLOW

GREEN/YELLOW

BLUE

YELLOW/BROWN

RED/WHITERELAY A

GREEN/YELLOW

A

RED/WHITE

GREEN/YELLOW

RELAY B

GREEN/YELLOW

PURPLE

BLACK/WHITE

YELLOW B

GREEN/YELLOW

A B C D E F

BLACKYELLOW

RED/WHITEBLACK

NOTE:All tests areperformed withplug connected.

To accessWeather-Packterminals, use asmall screwdriverto release latcheson either side ofcover. Flip upcover and slidegreen cable sealsup the wires to expose terminals.

Do notpenetrate wirecovering totest. This canlead to wiringcomponentfailure.

Rev. 02-16

Does voltage appearon terminal B of 6-way connector to ground?

(red/white wire)

NO

YESYESYES

NO

NOTE:

NO

NO NO NO

YES

NO

Does terminal F on6-way connectorshow ground to

battery positive side?(green/yellow wire)

Key switch is in ‘RUN’position for remainder

of test.Dose voltage appear

on terminal D of 6-wayconnector to ground?

(black wire)Check 40 AMP inline

fuse (Universal Harness) Faulty ground in Universal Wiring Harness

Check accy fusein fluseblock

Disconnect two wires from winch motor. If fuse repeatedly blows, check for pinched wires.Be sure to reconnect wires to winch. If fuse does not blow with wires disconnected,

winch motor may be defective.

Does voltage appear on

red/white wireof relay ‘A’ and ’B’

to ground?

Does green/yellow wire of relay ‘A’ and ’B’

show ground to battery

positive side?

Activate electriclift switch to downposition. Does

blue wire of relay ‘A’show ground

to batterypositive side?

YESActivate electriclift switch to up

position. Doespurple wire of relay ‘B’

show ground to battery

positive side?

YES YES

Check wiringbetween

6-way and relay

Check groundin Universal

Wiring HarnessReplace relay ‘A’ Replace relay ‘B’

Go to page 40

40 Rev. 11-01


YESYES

YES

What is theposition of the

winch

Is winch in the up position

and will notlower?

Is winch positioned between

upper and lowerlimit switches?But won’t raise

or lower?

Is winchin the down position

and will not raise?

Go to page 41 Go to page 42Redo teston previous

page

41


Figure 38

Figure 37

RED/WHITE

GREEN/YELLOW

RELAY B

GREEN/YELLOW

PURPLE

BLACK/WHITE

YELLOW B

? � � /

� � � � ��

99(� �9>>$�

�9>>$�� $

�(

? � � /

� � � �

? � $ ( @ : 9 �

? � � /

� � � � �? � � /

� � � � �+ ��

�

��

� �� /

� ��

� ��

' ! ! � � > � / � �

� � � � > � � � > � / � �

� � � �

6 7 5 4 A

Rev. 02-16

YESYESYES

NO

NO NO

Activate electriclift switch to

down position

Does black/whitewire of Relay ‘B’show voltage to

ground?

Does yellow wireof Relay ’B’ show

ground to battery positive

side?

Does purple wireof winch motorshow voltageto ground?

Faultywinch motor

Replacetoggleswitch

Replace lowerlimit switch.Lower limitswitch is

nearest winch(see Figure 38)

ReplaceRelay ‘B’

42 Rev. 02-16


Figure 40

Figure 39

GREEN/YELLOW

GREEN/YELLOW

BLUE

YELLOW/BROWN

RED/WHITERELAY A

GREEN/YELLOW

A

? � � /

� � � � ��

99(� �9>>$�

�9>>$�� $

�(

? � � /

� � � �

? � $ ( @ : 9 �

? � � /

� � � � �? � � /

� � � � �+ ��

�

��

� �� /

� ��

� ��

' ! ! � � > � / � �

� � � � > � � � > � / � �

� � � �

6 7 5 4 A

NO

NONO NO

YESYESYESActivate electric

lift switch toup position.

Does voltageappear on

yellow/brownwire of

switch to ground?

Does yellow/brown

wire of Relay ‘A’show voltage

to ground?

Does blue wireof winch motorshow voltageto ground?

Faultywinch motor

Replace toggleswitch

Replace Relay ‘A’

Does voltage appearon both yellow/brown

wires of upperlimit switch?

Upper limit switch isfarthest fromwinch motor

(see Figure 40).Be sure wire terminalsare tight and installed

correctly.

Replace upperlimit switch

43


WIRING DIAGRAM

Item Order DescriptionNo. No.

Item Order DescriptionNo. No.

605859 Wiring Assembly (includes items 1 & 3-7) 1 184969 Connector - 6 way 2 183855 Switch 3 202105 Diode 4 184177 Switch - Rocker 184083 Switch

5 604712 Relay 6 184926 Connector - 5 way Female Terminal 7 425217 Eyelet Insulator 8 604515 Lift Drive Assembly 9 184919 Connector - Pin Housing 10 184921 Connector - Housing

Rev. 02-16

7

8

10

6

9

4

5

5

1

2 2

RED/WHITE

GREEN/YELLOW

RELAY MOUNT

BLACK/WHITE

YELLOW

BLUE

SNOWTHROWER LIFT

YELLOW

PURPLE

SWITCH

GREEN/YELLOW

MUST BE DISCONNECTED FOR

TOWARD TRACTORTOWARD AERAVATOR

YELLOW/BROWN

LOWER LIMIT

BLUE

SWITCH

BLACK

BLACK

YELLOW/BROWN

6-WAY MALE BLACK PLUG FROM

SWITCH BOX

UPPER LIMIT

UNIVERSAL TRACTOR HARNESS6-WAY FEMALEBLACK PLUG

WHEN REMOVING AERA-VATOR FROM TRACTOR DISCONNECT WIRING AT THIS POINT

BLACK

MUST BE CONNECTED FORAERA-VATOR LIFT

07036A6

3

A B C D E FABCDEF

THIS IS A DOUBLE BLACK WIRE ON 184083 SWITCH

A B

44

HYDRAULIC LIFT DOES NOT WORKSEPARATE TILT SWITCH / DELAY TIMER STYLE

Rev. 02-16

Notes: 1. "Hydraulic switch" refers to either the push

button switch in the steering lever or the toggle switch in the console.

Voltage tests areperformed with a

voltmeter to battery ground(negative post)

unless otherwise noted. Raise the

tractor seat to access the

hydraulic lift solenoid valve.

Yes

No

Yes

Does ground appear at

green wire atsolenoid to

battery positive (hot post)?


Keyswitch is in "RUN" position

AND hydraulic switch is activated for each test. Does voltage appearat purple wire at

solenoid to ground?

Hydraulic switch nolonger needs to be

activated but, keyswitch is in"RUN" position.

Remove right fenderto access hydrauliclift wiring assembly.Does ground appearat black and green

wires (double wire) atdelay timer to batterypositive (hot post)?


Yes

Does voltageappear at

red and blackwires (doublewire) at delay

timer tobattery ground?

Does voltage appear at bottom terminal

of accessoryfuse in fuse block to

ground?

Replace accessoryfuse

Yes

Check bullet plugconnector between

fuse block anddelay timer.

No

No

No

No

No

Yes


TO A

Remove solenoid andreconnect wires with key

in "RUN" position, butengine NOT running.Does solenoid valvemove when hydraulicswitch is atcivated?

Service orreplace hydraulic

pump.

Replace solenoid.

Yes

45Rev. 03-05

HYDRAULIC LIFT DOES NOT WORK (CONTINUED)

SEPARATE TILT SWITCH / DELAY TIMER STYLE

Tilt Switch

GREEN

BLACK BLACK

PURPLE

GR

EE

NBLACK

RED

GREEN/YELLOW

PURPLE

BLA

CK

GROUND TO ENGINE

FUSE BLOCKDelay Timer

Solenoid

Hydraulic

Switch

Figure 41

Yes

Does voltageappear at

green/yellowwire at delay

timer to ground?

Replace tiltswitch.

No

Yes


Does voltage appearat purple wire atdelay timer to

ground?

Voltage should alsoappear at one purple

wire at hydraulicswitch. Does

voltage appear at otherpurple wire

with hydraulic

switch activated?

Check for brokenwire between

hydraulic switchand solenoid.

Replace delay timer. Replace hydraulicswitch.

No No

Yes

46

HYDRAULIC LIFT DOES NOT WORKONE PIECE TILT SWITCH / DELAY TIMER STYLE

Notes: 1. "Hydraulic switch" refers to either the push

button switch in the steering lever or the toggle switch in the console.

Voltage tests areperformed with a

voltmeter to battery ground(negative post)

unless otherwise noted. Raise the

tractor seat to access the

hydraulic lift solenoid valve.

Yes

No

Yes

Hydraulic switchno longer needs to be activated, but keyswitch is

in "RUN" position.Does ground

appear atyellow/brown

wire at solenoidto battery positive

(hot post)?

Keyswitch is in "RUN" position

AND hydraulic switchis activated for

each test.Does voltage

appear at purple wire at solenoid

to ground?

Does voltage appear at black wire at hydraulic switch to ground?

Replace accessoryfuse.

Yes

Remove right fenderto access hydrauliclift wiring assembly.

Keyswitch is in "RUN" position.

Does voltage appearat point 1 of 3-way

connection to ground?

Check plug connections.

No

No

NoNo


TO A

Remove solenoid andreconnect wires with key

in "RUN" position, butengine NOT running.Does solenoid valvemove when hydraulicswitch is activated?

Service orreplace

hydraulicpump.

Replace solenoid.

Yes

Replacehydraulicswitch.

Yes

Rev. 02-16

47

Figure 42

Rev. 02-16

Yes

Does groundappear at

point 5 to battery positive

(hot side)?

Check engineground.

No

Yes




(hot side)?



(hot side)?

Does groundappear at


(hot side)?

Check plug connections.

Replace tiltswitch box.

No No

Yes

Clean plug connections.

No

Yes

Check forbroken wire

between 3-wayplug and solenoid

valve.

BoxTilt Switch

GREEN

BLACK BLACK

PURPLE

GROUND TO ENGINE

FUSE BLOCK

YELLOW/BROWN

CA B

CBA

BLACK

RED

YELLOW

Solenoid

Fuse

1

2

3

4

56

Hydraulic

Switch

NOTE:

All tests are performedwith plug connected.

To access Weather-Packterminals, use a smallscrewdriver to releaselatches on either sideof cover. Flip cover upand slide green cableseals up the wires toexpose terminals.

Do not penetrate wire

covering to test. This

can lead to wiring

component failure.

HYDRAULIC LIFT DOES NOT WORK ONE PIECE TILT SWITCH / DELAY TIMER STYLE

(CONTINUED)

electrical vol 2 manual -...

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