Sign up to sell your inventory with NSN Lookup
TM-9-2320-361-24-1 Page 156

TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks

Page 156 of 1176


Download
TM 9-2320-361-24-1 0008 00 0008 00-28 MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. CLUTCH WILL NOT ENGAGE DRUM 1. Check shifter shaft and clutch. 2. Check for mechanical obstructions if clutch handle moves short distance then clatters. Replace winch if defective (WP 0345 00). Inspect clutch and drum jaws for burrs, breaks, and misalignment. Replace winch if defective (WP 0345 00). 2. WINCH NOISY WHEN UNDER LOAD 1. Check drum for radial free play. 2. Check wormshaft radial free play. Replace winch if radial free play is present (WP 0345 00). Replace winch if radial freeplay is present (WP 0345 00). 3. DRUM OVERRUNS CABLE OR CABLE COILS LOOSEN WHEN PAYING OUT CABLE Check drag brake adjustment (WP 0342 00). Replace winch if no adjustment remains (WP 0345 00). 4. WINCH DOES NOT HOLD LOAD WHEN POWER RELEASED 1. Check for presence of burned odor. 2. Automatic brake does not hold load after adjustment. Inspect automatic brakeshoes, replace winch if defective (WP 0345 00). Replace winch if defective (WP 0345 00). 5. WINCH LEAKS OIL 1. Check for defective oil seals and gaskets. 2. Check for cracked covers and housing. Replace winch if defective (WP 0345 00). Replace winch if cracked. (WP 0345 00). Table 12. Winch Troubleshooting Procedures. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION NOTE Mechanical troubleshooting procedures for fuel burning personnel and engine coolant heaters are the same. The following are for fuel burning personnel heaters. 1. HEATER FAILS TO TURN ON Bench test for defective control parts (WP 0426 00 and WP 0435 00). If defective replace control parts (WP 0421 00 through WP 0429 00). 2. HEATER OVERHEATS, OVERHEAT SWITCH IS GOOD 1. Check for obstructed airflow. 2. Check fuel control valve (WP 0421 00 or WP 0428 00). If obstructed, clear obstructions from fuel supply air and ventilation air passages (WP 0246 00 and WP 0248 00). Replace fuel control valve if defective (WP 0421 00 or WP 0428 00). Table 13. Winterization Kits Troubleshooting Procedures.