TM 5-3805-262-34
4-4. FRONT AND REAR AXLES DIFFERENTIAL ASSEMBLY MAINTENANCE (CONT)
a. Differential Carrier (Cont).
ADJUSTMENT OF RING GEAR BACKLASH
(1)
(2)
(3)
Put dial indicator in position
on a tooth of ring gear.
Hold pinion (23) shaft and move
ring gear back and forth to
check backlash. If ring gear or
pinion (23) are new, backlash
should be 0.012 inch; other-
wise, backlash should be same
as backlash measured and re-
corded during disassembly.
Adjust backlash, if necessary,
as follows:
(a) If backlash is excessive, loosen adjusting ring (5) at tooth side of
ring gear one notch and tighten other adjusting ring (5) one notch.
Check backlash again (step (2) above). Repeat until backlash is correct.
(b) If not enough backlash, loosen adjusting ring (5) at back side of ring
gear one notch and tighten other adjusting ring (5) one notch. Check
backlash again (step (2) above).
Repeat until backlash is correct.
(4)
Check tooth contact (page 4-232).
TOOTH CONTACT CHECK
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
4-232
Apply mixture of red lead and linseed oil to ring gear teeth.
Rotate ring gear one complete revolution in each direction.
Compare tooth pattern with pattern shown.
Adjust backlash or change thickness of shims (13), as required, to obtain
correct tooth pattern.
Install and spread two cotter pins (1).
(Front axle only.) Tighten thrust screw (26) until in contact with ring
gear, then loosen 1/4 turn.
(Front axle only.) Hold thrust screw (26) stationary and tighten nut
(25).
Install differential assembly (page 3-364 or 3-391).
