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 YES NO 2. Is 24 VDC present at terminal block TB18? WARNING Read WARNING on following page. Voltage Test or STE/ICE-R Test #89 TM 9-2320-366-20-2 2-1454 Change 1 POSSIBLE PROBLEMS Replace MAIN WINCH RH FREESPOOL switch (para 7-34) and M1089 wrecker control panel wiring harness (para 7-83). e140. MAIN WINCH LH OR RH FREESPOOL SWITCH DOES NOT OPERATE FROM WRECKER CONTROL PANEL (CONT) 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. MAIN WINCH LH and RH SPEED switches operate. LH 30K winch freespools. MAIN WINCH LH FREESPOOL switch OK. 30K winch pneumatic manifold solenoid L19 OK. Faulty MAIN WINCH RH FREESPOOL switch. Faulty M1089 control panel wiring harness. Faulty M1089 30K winch control wiring harness. Faulty jumper wire. Faulty 30K winch pneumatic manifold solenoid L17. Faulty wrecker air system. If 24 VDC is not present, MAIN WINCH RH FREESPOOL switch and M1089 wrecker control panel wiring harness are faulty.