TM10-3930-660-34 Table 2-1.  Direct Support and General Support Troubleshooting Table (Cont’d) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 3. Check front axle for breakage. Replace front axle shaft, para. 8-3. Step 4. Check ring gear, pinion gear, bearings and seals for defects or wear. Repair front differential, para. 8-5. Step 5. Check for dirt or debris in the front differential housing. Disassemble, clean, and assemble front differential housing, para. 8-5. Step 6. Check for improper assembly of front differential. Repair front differential, para. 8-5. Step 7. Check front differential ring and pinion adjustment. Adjust backlash of ring gear, para. 8-5. Step 8. Check for worn driveline parts. Replace or repair transmission gears, para. 8-5 and U-joints, 8-3 as necessary. 12. SLUGGISH RE-ENGAGEMENT OF FRONT DIFFERENTIAL CLUTCH ASSEMBLIES Step 1. Check for dirt or debris in the front differential housing. Disassemble, clean, and assemble front differential housing, para. 8-5. Step 2. Check for improper assembly of front differential. Repair front differential, para. 8-5. Step 3. Check lubricant used on axles. Change axle oil for ambient temperature, TM10-3930-660-20. 13. ERRATIC OPERATION OF FRONT DIFFERENTIAL; PREMATURE WEAR OR FAILURE OF PARTS Step 1. Check front differential for proper installation or component failure. Remove, repair, or install front differential, para. 8-5. 2-9