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TM-9-2320-366-20-2 MTV Unit Maintenance Manual M1083 Series - Volume 2 Download

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TEST OPTIONS REASON FOR QUESTION YES NO KNOWN INFO TM 9-2320-366-20-2 2-1456.2 Change 1 4. Is air pressure present at pneumatic manifold solenoid L17 port 1? Air Pressure Test WARNING Read WARNING on following page. POSSIBLE PROBLEMS Faulty M1089 30K winch control wiring harness. Faulty 30K winch pneumatic manifold solenoid L17. Faulty wrecker air system. Go to step 11 of this fault. If air pressure is not present, go step 11 of this fault. If air pressure is present, wrecker air system is faulty. 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. Faulty 30K winch pneumatic manifold solenoid L19. MAIN WINCH RH FREESPOOL switch OK. M1089 control panel wiring harness OK. Jumper wires OK. Perform Wrecker Air System Troubleshooting task aa3. Main Winch RH FREESPOOL Does Not Operate.