TM 55-1520-240-23-6
7-70
INSTALL POWER TRANSFER UNIT PUMP SHAFT SEAL (590974)
(Continued)
7-70
2.
Install pump (1) in vise (10).
3.
Install packing (11) in mating ring (2).
4.
Install pin (12) on shaft (13).
5.
Install mating ring (2) on shaft (13). Mating ring
shall engage with pin (12).
6.
Install shim (3) and new ring (4) on shaft (13).
7.
Check end play at mating ring (2). There shall be
0.0005 to 0.003 inch. If gap is larger, replace
shim (3). Use feeler gage.
8.
Install new retainer clip (5) on shaft (13).
9.
Install packing (14) in retainer (6) and packing
(15) on retainer.
10.
Install subassembly shaft seal (7) in retainer (6).
Use dowel.
11.
Install retainer (6) in pump (1), carbon side
outward.
12.
Install nut (8) in pump (1). Use wrench (APP
E-30). Torque nut to 200 inch-pounds. Tighten
until slot in nut lines up with slot in pump. Do not
exceed 300 inch-pounds.
13.
Install lockscrew (9).
14.
Fill shaft (13) 1/3 full of grease. Use grease
(E190).
15.
Remove pump (1) from vise (10).
INSPECT
NO BREAK - WORK HARDER
NO BREAK - WORK HARDER
FOLLOW-ON MAINTENANCE:
Test pump shaft seal (Task 7-71).
END OF TASK
7-306
