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 TM 55-1905-223-24-10
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
Cleanliness and care during repair is important. Before disassembly of any components,
plug all ports and thoroughly wash the outside of the assembly with cleaning solution to
remove grit and dirt. When removing internal components, care must be taken so that
sealing surfaces are not scratched or otherwise damaged. Inspect all packing grooves
and mating surfaces for severe wear or other damage. Any metal parts showing severe
wear should be replaced.
DISASSEMBLY
a. Remove four mounting screws (39) from mounting flange (1); slowly remove entire assembly from body hub
(35).
b. Remove short key (18) from shaft. Slide mounting flange (1) from shaft and remove seal (30) from opposite end
of shaft.
c. Remove housing screws (26), lock washers (24), and nuts (12) from body.
d. Place a pry bar in cast slots between cover (14) and housing (21). Separate assemblies.
e. From the motor body (23) remove valve plug (34), spring (32), and valve disk (31). Also remove tube (33) from
motor body (23).
f. Remove encased seal (3), preformed packing (4), thrust retainer ring (5), washer bearings and bearing (6, 7, 8),
and retainer ring (9). Discard preformed packing.
g. Remove retainer ring (10), roller bearing (11), cover (14), and preformed packing (15). Discard packing.
h. Remove plug (29), preformed packing (28), retaining ring (27), and roller bearing (25).
i. Remove key (17), motor body (23), preformed packing (22), housing (21), and gear rotor set (24).
4-32
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