TM 55-1520-240-23-10
16-12
FORWARD OR AFT CARGO HOOK WATERTIGHTNESS TEST
(Continued)
16-12
4.
Close valve (9) of test setup. Connect test setup
to air supply (10).
5.
Adjust regulator (11) to 0 psi.
6.
Connect test setup to test port (7).
7.
Open valve (9).
Do not apply more than 10 psi air
pressure to test port. Otherwise,
damage to solenoid cover or injury to
personnel can occur.
8.
Adjust regulator (11) for 5.5 psi on gage (12).
9.
Close valve (9). Adjust air supply regulator (11)
to 0 psi.
10.
Check gage (12) for pressure loss. There shall
be no pressure loss for 30 minutes.
INSPECT
11.
Open valve (9) and reduce pressure at port (7)
to 0 psi.
12.
Disconnect test setup from port (7) and from air
supply (10).
16-99