TM 9-2330-213-14&P
4-49. HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (M103A3, M105A2,
M105A2C, M107A2, AND M107A2C) (Con't).
NOTE
Perform step 3 only if bearing cups (9) are being replaced. Bearing cups should
always be replaced when outer and Inner wheel bearing cones (8 and 21) are
replaced.
Tap two bearing cups (9) out of hub (10).
3.
4.
If damaged, remove six wheel bolts (15) from hub (10).
ASSEMBLY
c.
If removed, install six wheel bolts (15) in hub (10).
1.
2.
If removed, tap two bearing cups (9) into hub (10).
Position adapter plate (19) on brakedrum (12), and install 18 bolts (18), flatwashers (13), and nuts (14),
3.
4.
Position adapter plate (19) and brakedrum (12) on hub (10) and install six bolts (22) and nuts (11).
NOTE
Instructions for packing outer and inner wheel bearlng cones (8 and 21) are found
in TM 9-214.
When installing spacer sleeve (17), ensure that flange faces inside of trailer,
Pack inner wheel bearing cone (21) with grease, Install inner wheel bearing cone, new oil seal (20), and
5.
spacer sleeve (17) on hub (10).
d. INSTALLATION
1.
Install hub (10) and brakedrum (12) on axle (16).
Pack outer wheel bearing cone (8) with grease, Install outer wheel bearing cone and Inner adjusting nut
2.
(7) on hub (10) and axle (16).
WHEEL BEARING ADJUSTMENT
e.
Tighten inner adjusting nut (7) while turning hub (10) and brakedrum (12) until drag is felt.
1.
Rotate hub (10) and brakedrum (12) one full turn. Loosen inner adjusting nut (7) while rocking hub back
2.
and forth until looseness is felt.
Tighten inner adjusting nut (7) slowly while rocking hub (10) until looseness is no longer felt.
3.
Install keyed washer (6) and outer adjusting nut (5) on axle (16). Bend tabs of keyed washer over flat of
4.
outer adjusting nut.
Install new gasket (4) and hubcap (3) on hub (10) with three new Iockwashers (2) and screws (1).
5.
Position floor jack under axle (16) and raise enough to remove jackstand.
6.
4-84
