TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download
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KNOWN INFO TEST OPTIONS REASON FOR QUESTION Continuity Test or STE/ICE-R Test #91 Is continuity present between terminal blocks TBC(1), TBC(2), TBC(3), TBC(4), and TBC(5). If continuity is not present, jumper wire is faulty. If continuity is present, M1089 30K winch control wiring is faulty. NO YES Replace jumper wire between terminal blocks that continuity is not present (para 7-33). 8. 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. MAIN WINCH RH SPEED switch OK. M1089 control panel wiring harness OK. POSSIBLE PROBLEMS Faulty M1089 30K winch control wiring harness. Faulty jumper wire. e139. MAIN WINCH LH OR RH SPEED SWITCH DOES NOT OPERATE FROM WRECKER CONTROL PANEL (CONT) TM 9-2320-366-20-2 2-1450.10 Change 1 Replace M1089 30K winch control wiring harness (para 7-142).