TM-9-2320-366-20-2

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 2 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-2 - Page 586 of 1632

KNOWN INFO

TEST OPTIONS

7.

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

CONTROL PANEL (CONT)

TM 9-2320-366-20-2

LH and RH winches operate

from wrecker control panel.

Circuit breaker CB50 OK.

STATION SELECTOR switch to

WRECKER CONTROL PANEL.

MODE SELECTOR SWITCH to

NORMAL.

STATION SELECTOR switch

OK.

MAIN WINCH LH SPEED

switch OK.

M1089 control panel power

cable assembly OK.

M1089 rear lights cable

assembly.

Auxiliary panel cable assembly

OK.

Dashboard cable assembly OK.

POSSIBLE PROBLEMS

2-1450.8

Change 1

Is 24 VDC present at

terminal block TB12?

Voltage Test or

STE/ICE-R Test #89

WARNING

Read WARNING

on following page.

Replace M1089 30K winch

wiring harness (para 7-142).

REASON FOR QUESTION

YES

NO

Replace MAIN WINCH RH SPEED

switch (para 7-34) and M1089 control

panel wiring harness (para 7-83).

Faulty MAIN WINCH RH

SPEED switch.

Faulty M1089 control panel

wiring harness.

Faulty M1089 30K winch

control wiring harness.

If 24 VDC is not present, MAIN

WINCH RH SPEED switch

and M1089 control panel

wiring harness is faulty.

If 24

VDC is present, M1089 30K

winch wiring harness is faulty.