TM 9-2320-289-34
6-17.1. REAR AXLE DRIVE PINION AND BEARINGS MAINTENANCE (M1028A2) (Con’t).
NOTE
When measuring rotating torque, torque reading needed to start drive
pinion (5) shaft turning should be disregarded,
Front shim pack (6 and 17) should be increased to reduce rotating
torque. Front shim pack should be decreased to increase rotating
torque.
10.
Measure rotating torque at flange nut
(4) ,
Rotating torque should be
20-40 lb.-in.
(2-5 N.m) for new
bearings, or 10-20 lb.-in. (1-2 N.m)
for reused bearings. Adjust front shim
pack (6 and 17) by repeating steps 8
and 9 if specifications are not met.
11.
Remove flange nut (4), washer (16), and flange (2) from drive pinion (5) shaft. Discard flange
nut.
12.
Coat lips of new pinion oil seal (14) with molybdenum grease and install squarely into housing (7)
bore until flush with housing. Install flange (2), washer (16), and new flange nut (4). Tighten
flange nut to 255 Ib.-ft. (346 N.m).
FOLLOW-ON TASKS:
l Install rear axle differential. (See paragraph 6-15.1)
Change 1
6-122.9/(6-122.10 blank)
