TM 9-2330-235-14&P
4-41. HUB, WHEEL BEARING, AND BRAKEDRUM MAINTENANCE (M390C) (Con't).
b. CLEANING AND INSPECTION
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.
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-138F (38C-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. Clean and inspect bearings and bearing cups in accordance with TM 9-214.
3. Inspect brakedrum and hub for cracks or other signs of damage.
4. Inspect braking surface of brakedrum for scoring, heat checking, or uneven wear.
TA505043
4-99