4-48. HUB, WHEEL BEARINGS, AND BRAKEDRUM MAINTENANCE (Cont).
If ribbed shoulder bolts (14) were removed, position backing plate (13) in place on hub (9) and install six ribbed
If ribbed neck bolts (17) were removed, position brakedrum (15) in place on backing plate (13) and install 18
ribbed neck bolts, washers (18); and new self-locking nuts (19).
Pack inner and outer bearings (11 and 7) with grease in accordance with TM 9-214.
Install inner bearing (11) and new oil seal (12) in hub (9). Gently tap with brass or wood drift until seated.
Position hub (9) and brakedrum (15) in place on axle spindle (16). Install outer bearing (7) on axle spindle and in
Install, but do not tighten, inner bearing adjusting nut (6) on axle spindle (16).
While slowly turning hub (9), tighten inner bearing adjusting nut (6) with adjustment nut wrench until hub does
not move with hand pressure, then back off nut about 1/4 turn.
Install keywasher (5) on axle spindle against inner bearing adjustment nut (6).