TM 9-2330-389-14&P
4-23.
SERVICE BRAKE MAINTENANCE (Con't).
NOTE
Perform steps 10 and 11 only if backing plate needs to be removed.
10.
Position drain pan to catch brake fluid. Disconnect tube assembly (16) from hydraulic wheel cylinder (17).
11.
Remove five machine bolts (18),five flat washers (19), and backing plate (3) from front frame assembly spindle
(20).
b.
CLEANING AND INSPECTION
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.
·
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.
1.
Clean all parts with dry cleaning solvent.
2.
Inspect all parts for damage. Replace any damaged parts.
3.
Inspect brakeshoe surfaces for cracks, distortion, and excessive wear. Brakeshoe linings should have a minimum
thickness of 1/8 in. (3.2 mm). Replace brakeshoes if cracked or if lining thickness is less than 1/8 in. (3.2 mm).
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