TM 9-2330-203-14&P
4-37.
HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (Con't).
e.
INSTALLATION
1.
Pack inner bearing i21) with grease and install in hub (19).
2.
Tap new oil seal (22) into hub (19).
3.
Install hub (19) and brakedrum (5) as an assembly on axle spindle.
4.
Pack outer bearing (17) with grease and install in hub (19).
5.
Install keywasher (M197 and M197A1 only) (16) and inner bearing adjusting nut (15) on axle spindle. Do not
tighten nut.
f.
WHEEL BEARING ADJUSTMENT
1.
While turning brakedrum (5), tighten inner bearing adjusting nut (15) until hub (19) binds on axle spindle.
2.
Back off inner bearing adjusting nut (15) about Y turn or until hub (19) rotates freely on axle spindle.
3.
Try to rock brakedrum (5) on axle spindle. There should be no movement noticeable between brakedrum and
edge of brake backing plate. A slight drag caused by lubricant and a new oil seal will be apparent on
4-92