TM 55-1520-240-23-6
7-171
INSTALL PRESSURE CONTROL MODULE PTU VALVE
(Continued)
7-171
1.
Inspect valve (1) for damaged, protruding, or
oversize packings and packing retainers (Task
7-42.1).
2.
Coat installed seals (2) with hydraulic oil (E199).
Do not force or cock valve during
installation. Any sudden resistance
or increase in torque may be the
result of damaged packings or
packing retainers. Remove valve and
reinspect (Task 7-42.1).
NOTE
Do not use vise grips or adjustable
pliers to install valve.
3.
Gently install valve (1) in port (3). Use hand
pressure and rotate valve slowly allowing valve
to seat itself. Engage thread and hand tighten
as far as possible.
4.
Torque valve with sufficient force to insure
proper seating of valve. Do not exceed 180
inch-pounds.
5.
Lockwire valve (1) to valve (4). Use lockwire
(E231).
INSPECT
FOLLOW-ON MAINTENANCE:
Perform functional check (TM 55-1520-240-T).
Bleed utility hydraulic reservoir (Task 7-336).
END OF TASK
7-714
