TM 5-4310-379-14
(11)
Inspect shaft (2) and replace if worn or otherwise damaged. The diameter of shaft (2) should be .6200-.6205
(1.5748-1.5761 cm) at body end, and .6253-.6258 in. (1.5982-1.5946 cm) at cover end.
(12)
Inspect valve (14), spring (13), and cup (12) and replace any item that is cracked, worn, or otherwise damaged.
Ensure valve (14) moves freely in pump cover (6).
(13)
Install valve (14), spring (13), and cup (12). Apply pressure to cup (12) and install pin (11).
(14)
Lubricate inside diameter of gear (9) and install gear (9).
(15)
Install key (8) in shaft (2). Lubricate outside diameter of shaft (2), and press shaft (2), small diameter end first,
into gear (7) until forward face of gear is 1.433-1.443 in. (3.639-3.665 cm) from large diameter end of shaft (2).
(16)
Lubricate shaft (2) and install shaft (2).
(17)
Install cover (6) and secure with four screws (4) and lockwashers (5). Torque screws to 13-17 Ib-ft (18-23 Nm).
(18)
Rotate shaft (2) and ensure shaft turns freely. If shaft does not turn freely, loosen four screws (4) slightly, tap
body (16) lightly and retorque screws.
(19)
Install key (3) and press gear (1) onto shaft (2) until end of shaft (2) is flush with face of gear (1). Recheck pump
for freeness.
Figure 5-17. Oil Pump, Repair.
FOLLOW-ON MAINTENANCE
Install oil pump (para. 4-16).
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