Disassembly - TM-55-1930-208-240041

TM 55-1930-208-24

3-12. HYDRAULIC PUMP -Continued.

a. Disassembly. (Refer to figure 3-10).

(1) Remove key (1) from shaft (33).

(2) Remove plug (2), O-ring (3), spring (4), and ball (5) from housing (6).

(3) Remove cap (7), adjusting screw (8), spring (9), valve seat (10), ball (11), and valve seat (12) from

housing (6).

(4) Remove adapter (13), O-ring (14), O-ring (15), inlet valve (16), and spring (17) from housing (6).

(5) Remove plug (18) and O-ring (19) from housing (6). Using a inch diameter brass rod inserted in

opposite side, push plunger valve (20) from housing (6). Remove and discard back-up ring (21), O-ring

(22), and back-up ring (23) from plunger valve (20).

(6) Remove plug (24), O-ring (25), spring (26), ball (27), and valve seat (28) from housing (6).

(7) Remove two screws (29), two lockwashers (30), and mounting flange assembly (31) from housing (6).

Remove and discard O-ring (32).

(8) Remove shaft (33), bearing (34), and washer (35). Remove piston (36) and ring (37) as an assembly.

(9) Remove washer (38). Press oil seal (39) and bearing (40) front mounting flange assembly (31) using an

arbor press.

NOTE

The carrier bearing (41) should only be removed if it is damaged.

(10) Using a puller, remove bearing (41) from housing (6).

NOTE

Sleeve (42) has been shrink fitted into the housing. It is not replaceable.

(11) Remove four screws (43), four lockwashers (44), setscrew (45), shaft (46), seal (47), and gasket (48) from

housing (49).

(12) Remove four screws (50) and four lockwashers (51). Remove balance shaft nut and remove flange (52).

3-24