TM 9-2320-272-24-4
5-64. DIFFERENTIAL AND DIFFERENTIAL CARRIER REPAIR (Contd)
Install inner nut (4) on threaded portion of hub (5) of bevel pinion gear (7). Ensure stud (9) on
8.
inner nut (4) is facing away from retainer (6) and bevel pinion gear (7). Tighten inner nut (4)
800-1,000 lb-ft (1,085-1,356 N-m).
Install keywasher (3) on hub (5). Ensure hole in keywasher (3) aligns over stud (9) of inner nut (4).
9.
Install new locktab washer (2) on hub (5). Ensure stud (9) sets into a hole in keywasher (3).
10.
11.
Install outer nut (1) on hub (5). Tighten nut (1) 1,OOO-1,200 lb-ft (1,356-1,627 Nm).
NOTE
Pinion bearings must be preloaded for proper operation of
differential assembly.
Wrap twine around retainer (6) and attach to bearing preload tester to determine bearing preload.
12.
Observe pointer and pull on bearing preload tester until retainer (6) starts to rotate. Record
13.
reading.
If original bearings are installed, bearing preload pull must be 1.2-2.4 lb (0.54-1.09 kg). If torque
14.
method is used to measure bearing preload, torque must be 4-8 lb-in. (0.5-0.9 Nm).
15.
method is used to measure bearing preload, torque must be 5-25 lb-in. (0.41-0.62 Nm).
NOTE
If preload is not within given limits, perform steps 16
through 19.
If preload is within given limits, go to step 21.
Remove outer nut (1), locktab washer (2), keywasher (3), and inner nut (4) from hub (5) of bevel
16.
pinion gear (7).
17.
Using arbor press, remove outer bearing (10), retainer (6), and spacer (11) from hub (5).
If preload valve (steps 13, 14, and 15) exceeds limits, use a thicker spacer (11) from bevel pinion
18.
gear spacer kit. If preload value is less than limits, use a thinner spacer (11).
Install parts on hub (5) following steps 5 through 11. Measure bearing preload using either twine
19.
and bearing preload tester or torque method. Repeat steps 16 through 19 until bearing preload is
within limits of either step 14 or 15.
Remove mainshaft (8) from soft-jawed vise.
20.
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