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TM-9-2320-361-24-1 Page 108

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

Page 108 of 1176


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MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. TRANSMISSION NOISY 1. Ensure Power Takeoff (PTO) is not engaged, if applicable. 2. Check propeller shafts condition. Remove propeller shafts and inspect (WP 0139 00). 3. Check clutch for proper adjustment. 4. Check transmission fluid level (WP 0020 00). 5. Drain transmission fluid and check for signs of broken gears, metal shavings, and contamination (WP 0020 00). 6. Check mounting of transmission to engine (WP 0132 00). If PTO is engaged, disengage. If propeller shaft assemblies are worn or defective, repair or replace (WP 0139 00). Adjust clutch linkage as necessary (WP 0047 00). Fill transmission fluid to proper level (WP 0020 00). If broken gears or metal shavings are found, replace transmission (WP 0131 00 and WP 0132 00). Tighten loose components or replace damaged components (WP 0132 00). 2. TRANSMISSION LEAKS OIL 1. Check transmission fluid level (WP 0020 00). 2. Check drainplug for leaks. 3. Check breather for restrictions. 4. Check transmission output seal for leaks. If fluid level is too high, drain to proper level (WP 0020 00). If drainplug is leaking, tighten. If breather is restricted, refer to WP 0128 00. Replace seals (WP 0450 00). 3. CLUTCH PEDAL WILL NOT TRAVEL OR DEPRESS 1. Check transmission fluid level (WP 0020 00). 2. Check clutch linkage to ensure it is connected and properly adjusted (WP 0047 00). If fluid level is low, add fluid (WP 0020 00). Adjust clutch linkage as necessary (WP 0047 00). TM 9-2320-361-24-1 0006 00 0006 00-12 MECHANICAL SYSTEMS TROUBLESHOOTING - UNIT (Contd) Table 7. Transmission Troubleshooting Procedures. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. VEHICLE CREEPS WITH CLUTCH DEPRESSED Check clutch pedal free travel. Clutch pedal should have 1.5–2 in. (3.8–5 cm) free travel. 1. If clutch requires adjustment, refer to WP 0047 00. 2. If free travel will not adjust, check for bent or broken parts. Replace damaged parts (WP 0047 00). Table 8. Clutch Troubleshooting Procedures.