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Page Title:
MAIN WINCH LH OR RH FREESPOOL SWITCH DOES NOT OPERATE FROM WRECKER CONTROL PANEL (cont) |
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 TM 9-2320-366-20-2
e140. MAIN WINCH LH OR RH FREESPOOL SWITCH DOES NOT OPERATE FROM WRECKER
CONTROL PANEL (CONT)
KNOWN INFO
TEST OPTIONS
3.
Continuity Test or
LH and RH winches operate
STE/ICE-R Test #91
from wrecker control panel.
Is continuity present
REASON FOR QUESTION
Circuit breaker CB50 OK.
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.
TBC(4) and TBC(5)?
MODE SELECTOR SWITCH to
NORMAL.
MAIN WINCH LH and RH
SPEED switches operate.
NO
LH 30K winch freespools.
MAIN WINCH LH FREESPOOL
switch OK.
30K winch pneumatic manifold
solenoid L19 OK.
MAIN WINCH RH FREESPOOL
Replace jumper wire between terminal blocks
YES
switch OK.
that continuity is not present (para 7-33).
M1089 control panel
wiring harness OK.
POSSIBLE PROBLEMS
Faulty M1089 30K winch
control wiring harness.
Faulty jumper wire.
Faulty 30K winch pneumatic
manifold solenoid L17.
Faulty wrecker air system.
Change 1
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