TM 9-2320-387-24-2
1 30-3. DIFFERENTIAL REPAIR (Cont’d)
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23.
Rotate housing (3) 90”. Lubricate rear bearing (6) with lubricating oil.
Collapsible spacer controls pinion bearing preload. Do not reuse
old spacer or pinion bearing damage may result.
24.
Install collapsible spacer (8) on pinion gear (7) and install pinion gear (7) in housing (3).
25.
Install pinion yoke (9) on pinion gear (7) with locknut (10).
Do not exceed specified preload torque on pinion bearings. Do not
loosen locknut to replace preload torque or pinion bearing damage
may result. If specified torque is exceeded, remove pinion gear and
replace collapsible spacer and locknut and adjust preload again.
26.
Tighten locknut (10) only enough to remove end play and seat pinion bearings in housing (3). ‘lb seat
bearings evenly, rotate pinion yoke (9) while tightening.
27.
Measure torque required to rotate pinion gear (7). Correct pinion bearing preload torque is
17-25 lb-in. (2-3 N-m) with new bearings and lo-15 lb-in. (l-2 N-m) with used bearings.
28.
Continue to tighten locknut (10) in small increments until pinion bearing preload torque meets
specifications.
30-17
