TM 55-1520-240-23-6
7-26
TEST FLIGHT CONTROL AND UTILITY HYDRAULIC PUMP (AVIM)
(Continued)
7-26
1.
Install four pressure caps (1) on signal port (2),
high pressure port (3), low pressure port (4), and
seal drain port (5) of pump (6).
2.
Connect test stand pressure hose (7) to case
drain port (8).
3.
Close valve (9).
4.
Apply 300 psi pressure to port (8). Adjust valve
(10) for 300 psi on gage (11). Maintain pressure
for 5 minutes.
5.
Check for leaks at seal plate (12). There shall
be no leaks.
6.
Close valve (10). Open valve (9).
Hydraulic fluid ejected under pressure
can cause injury to personnel.
Hydraulic fluid sprayed into the air is
a fire hazard.
7.
Disconnect pressure hose (7) from port (8).
8.
Remove four caps (1) from ports (2, 3, 4 and 5).
9.
Turn shaft (13) by hand. Shaft shall turn evenly
without binding or noise.
INSPECT
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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