ELECTRICAL CIRCUIT TROUBLESHOOTING. - TM-9-2350-238-20-20059

9-2350-238-20-2

2-10.

ELECTRICAL CIRCUIT TROUBLESHOOTING.

The

electrical

circuit

troubleshooting

table

lists

the

procedures

necessary

inspect/repair

applicable

electrical

circuits.

b. If you have a problem

with

electrical

circuit

which

not

covered

the

steps

below,

notify your supervisor.

ELECTRICAL

CIRCUIT

SYMPTOM

INDEX

Troubleshooting

Procedure

Page

BOOM

AND

WINCH

INSTALLATION

Level wind circuit

Lever wind does

not

traverse

cab

when

MASTER

and

LEVEL

WIND

2-21

switches are ON. Filter bypass indicator light is on . . . . . . . . . . . . . . . . . .

2-27

Level wind traverses cab in only one direction . . . . . . . . . . . . . . . . . . . . . . .

HYDRAULIC

INSTALLATION

Filter

bypass

indicator

circuit

Filter bypass indicator is not operating when level wind circuits are

2-37

operating normally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-35

Filter bypass indicator is off when level wind circuits are not operating . . . . .

Filter bypass indicator stays on when level wind circuits are operating

2-41

normally . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-30

SIip ring circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CAB

FILTER

INSTALLATION

2-42

Cab air purifier circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL INSTALLATION

Cab

flasher

headlight

and

dome

light

circuit

Cab signal flasher headlight and flasher indicator lamps are not operating

2-55

when MASTER and FLASHER SIGNAL switches are ON . . . . . . . . . . . . . . .

Cab signal flasher headlight does not operate when flasher indicator lamp

2-59

i s on and MASTER and FLASHER SIGNAL switches are ON . . . . . . . . . . . . .

2-61

Either dome light does not operate when MASTER switch is ON . . . . . . . . . .

Flasher indicator lamp is not operating when cab signal flasher headlight

2-57

is on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Utility

outlet

does

not

operate

when

both

dome

lights

are

and

MASTER

2-63

switch is on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Utility outlet is not operating when cab flasher headlight and dome lights

2-65

are off and MASTER switch is ON and dome light switches are ON . . . . . . .

Floodlight circuit

Both floodlights are not operating when MASTER and FLOODLIGHTS

2-51

switches are ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Only one floodlight is operating when MASTER and FLOODLIGHTS

2-49

switches are ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-19