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 TM 55-1905-223-24-10
REPAIR
WARNING
The fumes from cleaning solvents are dangerous. Use solvents in open air or well
ventilated space. Wear proper eye protection and rubber gloves.
a. Wash all metal parts in cleaning solvent, being especially thorough with the ports and passages in the housings
(36,29;21, and 9).
b. Inspect shaft (26) and shaft roller bearings (12) for excessive scoring or other damage.
NOTE
Damage or accumulated hours on unit justify replacement.
c. Inspect front housing (29) and motor body (19) for scratches, nicks, scoring or other damage that will result in
excessive leakage. All other parts should be free from nicks and burns and cleaned thoroughly.
CAUTION
When installing preformed packing, back-up washers and gear rotor set should be
coated with clean system oil or lubricating oil.
ASSEMBLY
a. On shaft, replace key (17), gear rotor set (24), housing (21), preformed packing (22), and motor body (23).
b. Replace roller bearing (25), retaining ring (27), preformed packing (28), and plug (29).
c. Replace preformed packing (15), cover (14), roller bearing (11), and retainer ring (10).
d. Replace retainer ring (9), washer bearings and bearing (6, 7, 8), thrust retainer ri ng (5), preformed packing (4),
and encased seal (3).
e. Screw into motor body the tube (33). Install valve disk (31), spring (32), and valve plug (34).
4-33
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