MAIN WINCH LH OR RH FREESPOOL SWITCH DOES NOT OPERATE FROM WRECKER CONTROL PANEL (cont)

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

10.

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

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

If continuity is not present,

WRECKER CONTROL PANEL.

TBC(4) and TBC(5)?

jumper wires is faulty. If

MODE SELECTOR SWITCH to

continuity is present, wrecker

NORMAL.

air system is faulty.

MAIN WINCH LH and RH

SPEED switches operate.

M1089 control panel wiring

harness OK.

POSSIBLE PROBLEMS

Faulty jumper wire.

Replace jumper wire between terminal blocks

YES

Faulty wrecker air system.

that continuity is not present (para 7-33).

Perform Wrecker Air System Troubleshooting task

aa4. M1089 LH And RH 30K Winch FREESPOOL Do

Not Operate.

2-1456.14

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