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

14.

LH and RH winches operate

Continuity Test or

from wrecker control panel.

STE/ICE-R Test #91

Is continuity present

Circuit breaker CB50 OK.

REASON FOR QUESTION

between terminal blocks

STATION SELECTOR switch to

If continuity is not present,

TBC(1), TBC(2), TBC(3),

WRECKER CONTROL PANEL.

jumper wire is faulty. If

TBC(4), and TBC(5).

MODE SELECTOR SWITCH to

continuity is present, M1089

NORMAL.

30K winch control wiring is

STATION SELECTOR switch

faulty.

OK.

MAIN WINCH RH SPEED

switch OK.

M1089 control panel power

cable assembly OK.

M1089 rear lights cable

Replace jumper wire between terminal

assembly.

YES

blocks that continuity is not present

Auxiliary panel cable assembly

(para 7-33).

OK.

Dashboard cable assembly OK.

MAIN WINCH LH SPEED

switch OK.

M1089 control panel wiring

harness OK.

POSSIBLE PROBLEMS

Faulty M1089 30K winch

control wiring harness.

Faulty jumper wire.

Replace M1089 30K winch control

wiring harness (para 7-142).

2-1450.22

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