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Page Title:
MAIN WINCH LH OR RH SPEED SWITCH DOES NOT OPERATE FROM WRECKER CONTROL PANEL (cont) |
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 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.
2.
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 lug on wire 12?
STATION SELECTOR switch to
This question eliminates
WRECKER CONTROL PANEL.
possible problems and
MODE SELECTOR SWITCH to
determines where
NORMAL.
troubleshooting continues.
STATION SELECTOR switch
OK.
NO
MAIN WINCH LH SPEED
switch OK.
M1089 control panel power
cable assembly OK.
M1089 rear lights cable
YES
assembly.
Go to step 7 of this fault.
Auxiliary panel cable assembly
OK.
Dashboard cable assembly OK.
POSSIBLE PROBLEMS
Faulty MAIN WINCH RH
SPEED switch.
Faulty M1089 control panel
wiring harness.
Faulty M1089 30K winch
control wiring harness.
Faulty jumper wire.
Faulty wrecker hydraulic
system.
2-1448
Change 1
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