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TM 55-1905-223-24-10
f. Remove preformed packing (20, 21, 22 and 23) from piston (19) od and id grooves. Remove threaded plug (27)
and hydraulic bleeder valve (25) from power plate (26).
WARNING
Hydraulic fluid contains chemical compounds that can cause irritation or injury to the skin
and eyes. Wear protectve clothing, gloves, and eye protection when working in the
vicinity of hydraulic equipment.
WARNING
The fumes from cleaning solvents are dangerous. Use solvents in open air or well
ventilated space. Wear proper eye protection and rubber gloves.
CAUTION
The common mounting surfaces of the brake, the motor and-the gear reducer are
machined to close tolerances and should be protected from damage during removal,
repair and installation.
REPAIR
a. Wash all parts thoroughly with cleaning solvent being especially thorough with power plate (26), piston (19), and
disk plates (15,16, and 18).
b. Inspect all metal parts especially rotating disks (16) fo r wear, scratches, nicks, heavy scoring or other damage.
c. Inspect pressure relief valve (28) spring loaded ball to assure it is free of contamination and moves freely.
d. Wash all metal parts prior to assembly and dry with compressed air if possible. Rotating disks (16) must be
clean and dry, with no presence of oil on any lining material or mating surfaces of the stationary disks (18).
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