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TM 9-2330-272-14
4-44. HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (Con’t).
6.
Remove inner wheel bearing cone (21), oil seal (20), and wiper ring (17) from hub (10) or axle (16). Discard oil
seal.
b.
DISASSEMBLY
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
Perform steps 1 and 2 only if adapter or brakedrum is damaged.
1.
Remove ten studs (15) and remove adapter (19) and brakedrum (11) from hub (10).
2.
Remove ten nuts (14), Iockwashers (13), cover (12), bolts (1 8), and adapter (19) from brakedrum (11). Discard
Iockwashers.
c.
CLEANING AND INSPECTiON
WARNING
l DO NOT handle brakeshoes, brake drums, 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.
l 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 frame 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.
1.
Clean ail removed components, axle spindle shoulder,
with abrasive cloth and wipe clean.
NOTE
If outer and inner wheel bearing cones need
replaced.
and hub with dry cleaning solvent. Remove any burrs
replacing, bearing cups must also be
2.
Clean and inspect outer and inner wheel bearing cones in accordance with TM 9-214. Discard if damaged.
3.
If damaged, or if replacing outer and inner wheel bearing cones, remove two bearing cups (9) from hub (10).
Press in new bearing cups and fully seat inside hub.
4-85
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