TM 55-1520-240-23-6
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BLEED CENTER CARGO HOOK HYDRAULIC SYSTEM WITHOUT EXTERNAL
POWER
(Continued)
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1.
Have helper support hook (1). Release stowage
strap (2).
2.
Lower hook (1) until it hangs free.
3.
Operate the APU (Task 1-36).
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. Wear gloves
(E186).
5.
Working in cockpit, set HOOK SELECT switch
(5) to MID on CARGO HOOK panel (6).
6.
Set MASTER switch (7) to ARM.
7.
Press and release CARGO HOOK RELEASE
switch (8) on pilots or copilots control stick (9).
Check cargo hook opens.
8.
Set switch (7) to RESET. Check cargo hook
closes.
9.
Repeat steps 6, 7, and 8 five times.
10.
Repeat step 4.
11.
Set switch (7) to OFF.
12.
Shut down the APU (Task 1-36).
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