TM 9-2330-213-14&P
4-49. HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (M103A3, M105A2,
M105A2C, M107A2, AND M107A2C) (Con't).
1.
Position jackstand under axle (16) and remove floor jack,
2.
Remove three screws (1), Iockwashers (2), hubcap (3), and gasket (4) from hub (10). Discard
Iockwashers and gasket,
Remove outer adjusting nut (5), keyed washer (6), and inner adjusting nut (7) from hub (10) and axle
3.
(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.
Remove hub (10) and brakedrum (12) from axle (16).
5.
6.
Tap inner wheel bearing cone (21), oil seal (20), and spacer sleeve (17) out of hub (10) or 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 100F-130F (38C-59C). 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 outer and inner wheel bearing cones (8 and 21) need replacing, bearing cups (9)
must also be replaced (subpara b).
7.
Clean and inspect outer and inner wheel bearing cones (8 and 21) in accordance with TM 9-214. Discard if
damaged.
4-82