4-56. SERVICE BRAKE MAINTENANCE (DUAL WHEEL CYLINDERS).
This Task Covers:
Cleaning and Inspection
q Two keywashers
General mechanic's tool kit
Two retaining rings
Retaining ring pliers
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.
If replacing brakeshoes only, perform steps 1 and 2.
Note size and location of springs to ensure proper assembly.
Remove four springs (2 and 6).
Remove two bolts (9), Iockwashers (8), flatwashers (7), and brakeshoes (1) from backing plate (5). Discard
Remove wheel cylinders (3) and shields