MAIN WINCH LH OR RH SPEED SWITCH DOES NOT OPERATE FROM WRECKER CONTROL PANEL (cont)

TM 9-2320-366-20-2

e139. MAIN WINCH LH OR RH SPEED SWITCH DOES NOT OPERATE FROM WRECKER

CONTROL PANEL (CONT)

KNOWN INFO

TEST OPTIONS

LH and RH winches operate

from wrecker control panel.

STE/ICE-R Test #91

Is continuity present from

Circuit breaker CB50 OK.

REASON FOR QUESTION

terminal lug on wire C to

STATION SELECTOR switch to

This question eliminates

ground?

WRECKER CONTROL PANEL.

possible problems and

MODE SELECTOR SWITCH to

determines where

NORMAL.

troubleshooting continues.

STATION SELECTOR switch

OK.

MAIN WINCH LH SPEED

switch OK.

M1089 control panel power

cable assembly OK.

M1089 rear lights cable

assembly.

YES

Go to step 8 of this fault.

Auxiliary panel cable assembly

OK.

Dashboard cable assembly OK.

MAIN WINCH RH SPEED

switch OK.

M1089 control panel wiring

harness OK.

POSSIBLE PROBLEMS

Faulty M1089 30K winch

control wiring harness.

Faulty jumper wire.

Faulty wrecker hydraulic

system.

Notify DS Maintenance

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