TM 1-1520-238-23
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3.61.
PARKING BRAKE ROTARY DIRECT VALVE REPAIR AND TEST (AVIM) continued
3.61.2. Disassembly
a. Remove four brake valve seats (1) from rotary
direct valve (2).
(1) Place rags under valve to catch hydraulic
fluid spills.
(2) Remove lockwire from brake valve cap (3).
(3) Remove cap (3) from valve (2).
(4) Remove and discard packing (4) from cap
(3).
(5) Remove brake valve spring (5) and bearing
ball (6).
(6) Remove seats (1).
(7) Remove and discard packing (7) from seat
(1).
(8) Remove hydraulic valve lifter (8) from seat
(1).
(9) Repeat steps a.(2) through a.(9) for all four
seats (1).
b. Remove brake valve cam (9) from valve (2).
(1) Remove lockwire from valve brake screw
(10).
(2) Remove screw (10) from valve brake lever
(11).
(3) Remove lever (11) from valve (2).
(4) Push cam (9) out of valve (2).
(5) Remove and discard five packings (12) from
cam (9).
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