TM 5-3895-371-24 & P
Install pump shaft (53, fig. 3-4), ball bearing (48), retaining ring (47), retaining ring (12)
and inner race of bearing (13) through the front face of the mounting flange (55). (See fig. 3-28). The
ball bearing (48, fig. 3-4) should fit snugly in the mounting flange (55). If ball bearing (48) doesnt seat
easily, heat mounting flange (55) in hot oil and seat ball bearing in proper position. Do not drive the
ball bearing (48) into place. Do not use the shaft seal assembly (51) to force bearing into seat. Check
ball bearing (48) for free running by rotating pump shaft (53).
Press a new shaft seal (50) into the seal assembly (51) using an arbor press with a 2-1/2
in. plug and loctite sealant. Fill cavity between oil lip and wiper lip approximately 3/4 full with multi-
purpose grease. Install new O-ring (49) in mounting flange (55). To prevent possible cuts or abrasions,
the O-ring (49) should be lightly coated with a multi-purpose grease. Wrap shim stock or other thin
material around shaft spline and carefully slide seal assembly (51) over pump shaft (53).
Figure 3-28. Installing Pump Shaft Assembly.