TM 10-4930-351-14
0092 00
ASSEMBLY
1.
Lightly lubricate and install O-ring (23).
2.
Install discharge port plate (18) so that side with two alignment pin holes engages the alignment pins (24). Press down
discharge port plate (18), adjusting position as required until plate engages alignment pins (24). Maintain this position
until vane pump assembly is complete.
3.
Install alignment pin (20) in discharge port plate (18).
4.
Install cam ring (19) on alignment pin (20).
5.
Install rotor (22) inside cam ring (19).
6.
Install drive sleeve (12) onto shaft (7). Ensure that the end with two grooves is facing the discharge port plate (18).
CAUTION
After rotor drive pin is installed, do not disturb position of drive sleeve. Rotor pin will fall into pump
and damage pump at first attempt to operate.
7.
Rotate rotor (22) or drive sleeve (12) to align notch in the rotor (22) with the largest of the two grooves on drive sleeve
(12). Install rotor drive pin (16) in the aligned groove to engage rotor (22) to drive sleeve (12).
8.
Install six vanes (21) in rotor (22).
9.
Install inlet port plate (15) so that alignment pin hole engages alignment pin (20).
10. Press down on inlet port plate (15) and rotate until rotary vane pump assembly (17) engages alignment pins (24). Hold in
place and loosely install six socket head screws (13) and flat washers (14). Torque in crossing pattern to 20-25 in-lbs.
NOTE
Do not lift drive sleeve or disturb position after pin installation.
11. Turn pump shaft (7) to align notch on pump shaft (7) and drive sleeve (12). Install pin (11) in drive sleeve (12) and
pump shaft (7).
12. Install impeller (10), flat washer (9) and secure (hand tight) with shaft nut (8).
13. Install flexible coupling adapter and key on keyed end of pump shaft (7).
14. Position strap wrench around flexible coupling adapter as near to set screw as possible to hold pump shaft (7). Torque
shaft nut (8) to 193-208 in-lbs.
15. Remove flexible coupling adapter and key from pump shaft (7)
16. Lightly lubricate and install O-rings (5 and 6) on bearing housing assembly (1).
17. Align to previous marks and insert bearing housing assembly (1) in diffuser case (2)
18. Install the eight hex head screws (3) and flat washers (4) that secure the bearing housing assembly (1) to the diffuser
case (2). Torque in crossing pattern to 75-80 in-lbs.
END OF WORK PACKAGE
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