TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 146 of 1176
TM 9-2320-361-24-1 0008 00 0008 00-18 MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. VEHICLE WILL NOT MOVE OR ENGINE STALLS WITH CLUTCH ENGAGED (Contd) 2. Check flywheel condition (WP 0029 00). 3. If transmission to transfer case propeller shaft will not spin, remove transmission (WP 0131 00). Remove pressure plate and clutch disc for defects. Verify flywheel condition (WP 0029 00). 4. If pressure plate and clutch disc are defective, replace (WP 0050 00). 5. If flywheel is burned or damaged, repair and replace flywheel (WP 0441 00 or WP 0029 00). 2. BURNING ODOR EVIDENT WITH CLUTCH ENGAGED CAUTION • Clutch engagement followed by a burning odor indicates clutch improperly engaged and slipping. When this condition is evident, inspection of vehicle clutch operation is required immediately. Prolonged operation of vehicle under these conditions may result in damaged clutch disc, pressure plate and flywheel. • Clutch slippage due to improper clutch disc operation may result in damage to pressure plate, clutch disc, and flywheel contact at surface. NOTE Light surface discoloration of pressure plate and flywheel contact surfaces may be removed with crocus cloth. Deeper discoloration and hard spots on flywheel may require replacement of part. 1. Check clutch assembly condition. Remove transmission (WP 0131 00). 2. Remove pressure plate and clutch disc for inspection (WP 0050 00). 3. Remove release bearing for inspection (WP 0049 00). 1. If flywheel or pressure plate surface is only slightly discolored or damaged, clean with crocus cloth. If damage is greater, replace (WP 0050 00 and WP 0029 00). Table 4. Clutch System Troubleshooting Procedures (Contd).