TM 5-4310-451-14
4-69. REAR WHEEL BEARINGS AND BRAKEDRUM MAINTENANCE (Con’t).
b.
CLEANING AND INSPECTION
WARNING
DO NOT handle brakeshoes, brakedrums, or other brake components unless area has been properly
cleaned. There maybe asbestos dust on these component swhich 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.
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 1000F-
1380F (38°C-590C). 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.
Use dry cleaning solvent to remove grease and oil from all metal parts. Dry thoroughly.
2.
Inspect brakedrum and hub for cracks and other signs of damage.
3.
Inspect braking surface of brakedrum for scoring or uneven wear.
C.
INSTALLATION
1.
If removed, install hub (2) on brakedrum (9) with
six wheel studs (13).
2.
If removed, install two bearing cups (12) into
position in hub (2).
NOTE
For Instructions on packing outer and
Inner wheel bearing cones refer to TM
9-214.
3.
Pack inner wheel bearing cone (11) with grease,
position in hub (2) and brakedrum (9), and install
new oil seal (10).
4-165
