TM 9-2330-267-14&P
4-45. HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (Con’t).
a.
REMOVAL
1.
Position jackstand under axle (16) and remove floor jack.
2.
Remove six screws (1), Iockwashers (2), hubcap (3), and gasket (4) from hub (10). Discard Iockwashers and
gasket.
3.
Remove outer adjusting nut (5), keywasher (6), and inner adjusting nut (7) from hub (10) and axle (16).
4.
Pull hub (10) out slightly on axle (16) to loosen outer wheel bearing cone (8). Remove outer wheel bearing cone
from hub and axle.
WARNING
DO NOT handle brakeshoes, brakedrums, or other brake components unless area has
been properly cleaned. There may be asbestos dust on these components which can
be dangerous if you touch it or breathe it. Wear an approved filter mask and gloves.
Never use compressed air or a dry brush to clean brake components. Dust may be
removed using an industrial-type vacuum cleaner. Clean dust or mud away from brake
components with water and a wet, soft brush or cloth. Failure to follow this warning may
result in serious illness or death to personnel.
5.
Remove hub (10) and drum (12) from axle (16) and backing plate (19).
6.
Tap inner wheel bearing cone (21), oil seal (20), and spacer sleeve (17) out of hub (10) or from axle (16). Discard
oil seal.
WARNING
Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated area, Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors, DO NOT use near open flame or excessive
heat. The solvent’s flash point is 100°F-138°F (38°C-59°C), If you become dizzy
while using cleaning solvent, immediately get fresh air and medical help. if solvent
contacts eyes, immediately wash your eyes and get medical aid.
NOTE
If inner and outer wheel bearing cones need to be replaced, wheel bearing cones and
races are replaced as a set.
7.
Clean and inspect inner and outer wheel bearing cones in accordance with TM 9-214. Discard if damaged.
b. DISASSEMBLY
WARNING
DO NOT handle brakeshoes, brakedrums, or other brake components unless area has
been properiy cleaned. There may be asbestos dust on these components which can
be dangerous if you touch it or breathe it. Wear an approved filter mask and gloves.
Never use compressed air or a dry brush to clean brake components. Dust may be
removed using an industrial-type vacuum cleaner. Clean dust or mud away from brake
components with water and a wet, soft brush or cloth. Failure to follow this warning may
result in serious illness or death to personnel.
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