TM 55-1520-240-23-6
7-63
INSTALL POWER TRANSFER UNIT CHECK VALVES
(Continued)
7-63
NOTE
There are two check valves, one in No.
1 and one in No. 2 unit. Procedure is
same to remove either check valve.
No. 1 unit check valve is shown here.
1.
Install two retainers (1), packing (2), two retainers
(3), and packing (4) on valve (5).
2.
Install valve (5), in port (6). Torque valve to 60
inch-pounds.
3.
Lockwire valve (5). Use lockwire (E231).
4.
Remove lockwire from plug (7). Remove plug
and packing (8) from port (9).
5.
Fill motor (10) through port (9) with fluid (E199).
Use cloths (E135) for spilled fluid. Use gloves
(E186).
6.
Install plug (7) and packing (8) in port (9).
7.
Lockwire plug (7) to unit (11). Use lockwire
(E231).
INSPECT
NO BREAK - WORK HARDER
NO BREAK - WORK HARDER
NO BREAK - WORK HARDER
FOLLOW-ON MAINTENANCE:
Service reservoir (Task 1-60, 1-61, or 1-62).
Bleed utility hydraulic system (Task 7-334).
Perform operational check (TM 55-1520-240-T).
Close right forward work platform or pylon access
doors (Task 2-2).
END OF TASK
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