TM 10-4930-351-14
0110 00
DISASSEMBLY Continued
22. Remove and discard O-ring (44) from bearing assembly housing (15).
23. The shaft assembly (28, 45, 46, 47, 48, 49, 50, and 51) is removed by forcing it out of the bearing housing assembly
(15). Use a spare nut or a block of wood on threaded end of shaft (28), strike moderately to drive the shaft assembly
from bearing housing assembly (15).
24. Remove bearing (45), wave washer (46) and spacers (47 and 48), bearing (49), slinger (50) and face seal assembly (51)
from shaft (28).
25. Remove relief valve (52) from bearing assembly housing (15). Remove and discard O-ring (53) from relief valve (52).
ASSEMBLY
1.
Place bearing housing assembly (15) in warming oven at 200 degrees for 30 minutes.
2.
Assemble slinger (50), bearing (49), spacer (47), wave washer (46), spacer (48), and bearing (45) on shaft (28).
3.
When the bearing housing assembly (15) has warmed, remove from oven. Install shaft assembly in bearing housing
assembly (15), inserting from output end. Allow assembly to cool to ambient. Turn shaft by hand to verify freedom of
rotation.
4.
Rotate shaft (28) so that hole near bearing (45) is facing up.
5.
Place retaining collar (26) against bearing (45) and align retaining wire hole in retaining collar (26) with the hole in the
shaft (28).
6.
Insert bent end of retaining wire (29) through hole in retaining collar (26) and into hole in shaft (28).
7.
Install shaft nut (30) snugly on shaft (28).
8.
Place 1-5/8" wrench on retaining collar (26) and a 9/16" wrench on shaft nut (30). Rotate shaft clockwise. Observe
retaining wire (29). The wire should feed into the retaining collar as shaft is rotated. Continue rotating shaft (28) until
retaining wire (29) is fully seated in retaining collar groove. A small portion of the wire end will still be visible. Using
flex coupling, remove shaft nut (30) from shaft (28).
9.
From inlet side, lubricate shaft (28) and bearing housing cavity with petrolatum.
10. Assemble carbon and metal cap part of the rotating face seal assembly (51) so that dimples match. Place the assemblage
over the shaft (28) with the carbon seal on the bottom. Use two tongue depressors or equivalent non-metallic objects to
press against metal cap to seat the seal fully against the bearing housing assembly (15).
11. Install spring and metal cap part of face seal assembly (51) over the shaft (28) to complete rotating face seal assembly
(51).
12. Lightly lubricate and install O-ring (44).
13. Install discharge port plate (39) so that side with two alignment pin holes engages the index pins (54). Press down
discharge port plate (39), adjusting position as required until plate engages index pins (54). Maintain this position until
vane pump assembly is complete.
14. Install alignment pin (41) in discharge port plate (39).
15. Install cam ring (40) on alignment pin (41).
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