5-34 Problem Cause Correction Diff-lock inoperative 18. If manual, loss or misadjusted linkage. 19. If hydraulic, problems in the hydraulic or electrical circuits of the vehicle. 20. If hydraulic, problems in the hydraulic or electrical circuits of the vehicle. 21. If with self locking differential, weared discs. Inspect and correct linkage and readjust. Refer to the Group 2 and 3 of this section. Rebuilt cylinder as described on page 7-192. Replace discs as described on page 7-189. Oil coming out of breather 22. Hydraulic leak in brake system. 23. Hydraulic leak in diff-lock acti- vating cylinder. See corrections No.2 & 3. See corrections No.20. No spin indexing noise when driven straight.
24. Unequal tire pressure from one side to the other. 25. Different style, size or brand of tires from one side to the other. Infl ate tires to the recommended pressure or until the rolling radius is equal. Change tires to make the rolling radius equal. Vary the tire pressure within the specifications until the rolling radius is equal. Noise during coast and under power the same 26. Wheel bearings Replace and adjust as described on page 7-157. Noise under power greater than during coast. 27. Low oil level 28. Incorrect oil 29. Ring and pinion worn 30. Worn ring and pinion bearings 31. Worn planetary gears or bear- ings Refi ll oil to proper level See correction No.17.
Inspect through rear cover. Replace and adjust as described on page 7-173. Replace and adjust as described on page 7-173. Replace as described on page 7-157. Noise during coast greater than under power 32. Loose pinion nut 33. Only one pinion bearing dam- ages. Inspect ring, pinion and pinion bearings. If undam- aged, retighten nut as described on page 7-173. See correction No.30. Noise during turn (without no spin) 34. Worn spider and / or side gears Replace as described on page 7-185.