4-69. HUB, WHEEL BEARINGS, AND BRAKEDRUM MAINTENANCE (Con't).
Remove ten nuts (11'), Iockwashers (18), bolts (22), access cover (19), and brakedrum (13) from adapter (21).
Remove six bolts (20) and adapter (21) from hub (14).
Perform step 3 only if bearing cups are being replaced. Bearing cups should always be
replaced when outer and inner roller bearings are replaced.
Remove two bearing cups (15 and 16) from hub (14).
CLEANING AND lNSPECTION
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-l38F (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.
Clean all parts with dry cleaning solvent and dry thoroughly,
If outer and Inner roller bearings are replaced, bearing cups must also be replaced.
Clean and inspect outer and inner roller bearings in accordance with TM 9-214. Replace if damaged.