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 TM 55-1905-223-24-9
3-11. Repair Hydraulic Pump. (FIGURE 3-3)
This task covers:
a. Disassembly,
b. Repair,
c. Assembly.
INITIAL SETUP
Tools
Equipment Condition
Tool kit, general mechanic's,
TM 55-1905-223-10, Equipment shut down,
tagged "Out of Service."
Refer to the following paragraph in this
Materials/Parts
maintenance manual:
Hydraulic pump removed (paragraph 2-17).
Ring, P/N 328152
Bushing P/N 280267
Preformed packing P/N 154090
(2 required)
Vane set P/N 923493
Seal P/N 229235
Bearing P/N 98574
Spring P/N 28422
Retaining ring, P/N 109975
Machine key, P/N 5881
Rotor, P/N 358330
Pin, P/N 2478
Retaining ring, P/N 98653
DISASSEMBLY
a. Remove four machine screws (17), keeping pressure on cover. Release spring pressure slowly and remove
cover (18).
b. Remove spring (16), pressure plate (15), bushing (14), preformed packing (10), ring (13), rotor (9), vane set (12),
preformed packing (10), and pin (11).
c. Remove shaft nut (7) and retaining ring (8). Withdraw shaft (5) from body (1) and remove machine key (6).
d. Remove bearing (4) from body.
e. Remove retaining ring (3) and seal (2) from body.
REPAIR
Repair at this level consists of replacing: bearing (4), retaining ring (3), seal (2), pin (11), vane set (12), rotor (9), ring
(13), preformed packing (10), bushing (14), spring (16), machine key (6), and retaining ring (8).
3-15
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