TM 9-2330-235-14&P
4-27.
BRAKESHOE REPLACEMENT (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.
1 Measure thickness of brakeshoe linings. Thickness should be at least X in (3.2 mm) If thickness is not at least X
in. (3.2 mm), replace both brakeshoes
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
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.
2 Clean all removed components with dry cleaning solvent and dry thoroughly.
3 Inspect all other parts for cracks, breaks, corrosion, or other damage Replace all damaged parts
c.
INSTALLATION
1. If removed, install wheel cylinders (8) (para 4-30). Position a C-clamp over ends of each wheel cylinder to retain
cups and pistons in cylinder.
2. Install rear brakeshoe (6) on backing plate (7) with spacer (25), flatwashers (24), new lockwashers (23), and screw
(22).
3. Install front brakeshoe (10) on backing plate (7) with spacer (11), flatwashers (12), new lockwashers (13), and nut
(14).
4. Install brake lever (21), cable ramp (20), and link (15) on pins (19) on upper ends of both front and rear
brakeshoes (6 and 10) with two spring washers (16), flatwashers (17), and slotted washers (18).
5. Install two return springs (9). Remove C-clamp from wheel cylinders (8).
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