TM 55-1520-240-23-6
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BLEED UTILITY HYDRAULIC CENTER CARGO HOOK SYSTEM
(Continued)
7-337
Filter assembly kit
ADHT6814-M9716M must be
installed in test stand pressure
line. Otherwise, system can be
contaminated.
NOTE
To operate hydraulic test stand, refer
to applicable manual.
1.
Have helper support hook (1). Release stowage
strap (2).
2.
Lower hook (1) until it hangs free.
3.
Apply hydraulic power. Set test stand to 200 psi.
4.
Loosen nut (3) of pressure hose (4). Allow fluid to
flow until air free. Tighten nut. Use container and
cloths (E120) for spilled fluid. Use gloves (E186).
5.
Set stand to 1000 psi.
6.
Working in cockpit, set HOOK SELECT switch
(5) to MID on CARGO HOOK panel (6).
7.
Set MASTER switch (7) to ARM.
8.
Press and release CARGO HOOK RELEASE
switch (8) on pilot’s or copilot’s control stick (9).
Check cargo hook opens.
9.
Set switch (7) to RESET. Check cargo hook
closes.
10.
Repeat steps 7, 8, and 9 five times.
11.
Repeat step 4.
12.
Set switch (7) to OFF.
13.
Remove hydraulic power.
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