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)

WARNING

Read WARNING

KNOWN INFO

TEST OPTIONS

on following page.

13.

Voltage Test or

LH and RH winches operate

STE/ICE-R Test #89

from wrecker control panel.

Is 24 VDC present at

REASON FOR QUESTION

Circuit breaker CB50 OK.

terminal block TB14?

STATION SELECTOR switch to

If 24 VDC is not present,

WRECKER CONTROL PANEL.

MAIN WINCH LH SPEED

MODE SELECTOR SWITCH to

switch and M1089 control

NORMAL.

panel wiring harness is faulty.

STATION SELECTOR switch

If 24 VDC is present M1089

OK.

30K winch control wiring

MAIN WINCH RH SPEED

harness is faulty.

switch OK.

M1089 control panel power

cable assembly OK.

M1089 rear lights cable

assembly.

Auxiliary panel cable assembly

Replace MAIN WINCH LH SPEED

OK.

YES

switch (para 7-34) and M1089 control

Dashboard cable assembly OK.

panel wiring harness (para 7-83).

POSSIBLE PROBLEMS

Faulty MAIN WINCH LH SPEED

switch.

Faulty M1089 control panel

wiring harness.

Faulty M1089 30K winch

control wiring harness.

Replace M1089 30K winch

wiring harness (para 7-142).

2-1450.20

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