TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 150 of 1176
TM 9-2320-361-24-1 0008 00 0008 00-22 MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 3. TRANSFER CASE LEAKS OIL (Contd) 6. If transfer case rear output bearing cover gasket is leaking replace gasket (WP 0451 00). 7. If countershaft rear bearing cover gasket is leaking, remove transfer case and replace gasket (WP 0138 00 and WP 0451 00). 8. If rear output shaft oil seal is leaking remove transfer case (WP 0138 00) and replace seal (WP 0451 00). 9. If rear output shaft bearing retainer gasket is leaking, remove transfer case (WP 0138 00) and replace gasket (WP 0451 00). 10. If top cover gasket is leaking, replace (WP 0451 00). 11. If PTO is leaking oil, replace (WP 0348 00). 12. If transfer case oil leaks continue, remove transfer case (WP 0138 00) and disassemble (WP 0451 00). Check transfer housing halves for defects. Replace defective components. 4. TRANSFER CASE NOISY 1. Drain transfer case fluid (WP 0020 00) and check for signs of broken gears, metal shavings, and contamination. 2. Check transfer case operation in high and low range and in neutral. If broken gears, metal shavings, or contamination are found in transfer case or on magnetic drain plug, replace transfer case (WP 0138 00). If transfer case is defective, replace (WP 0138 00). 5. TRANSFER CASE GRINDS OR POPS OUT OF GEAR DURING NORMAL VEHICLE OPERATION Drain transfer case fluid (WP 0020 00) and check for signs of broken gears, metal shavings, and contamination. If broken gears, metal shavings, or contamination are found in transfer case or on magnetic drain plug, replace transfer case (WP 0138 00). Replace transfer case (WP 0138 00). Table 6. Transfer Case Troubleshooting Procedures (Contd).