TM 55-1520-240-23-6
7-264
TEST HOOK RELEASE VALVE (AVIM)
(Continued)
7-264
NOTE
Valve is cycled by turning dc power
supply off and on one time.
11.
Cycle valve (3) 5 times.
12.
Check valve (3) for external leaks. There shall
be no external leaks.
13.
Reduce pressure at port (2) to 0 psi.
14.
Reduce voltage at receptacle (9) to 0 volt.
15.
Disconnect hoses (4 and 6) from valve (3).
16.
Install pressure cap (12) on port (7).
17.
Position graduate cylinder (13) under port (5).
18.
Apply 3,000 psi pressure to port (2). Maintain
pressure for 3 minutes.
19.
After 3 minutes, check port (5) for leaks. Leaks
at port (5) shall not exceed 5 cc per minute.
20.
Reduce pressure at port (2) to 0 psi.
21.
Allow valve (3) to cool for 5 minutes.
22.
Remove cap (12) from port (7).
23.
Install cap (12) on port (5).
24.
Position graduate cylinder (13) under port (7).
25.
Adjust dc power supply (8) to 22 volts.
26.
Apply 3000 psi pressure to port (2). Maintain
pressure for 3 minutes.
27.
After 3 minutes, check port (7) for leaks. Leaks
at port shall not exceed 5 cc per minute.
28.
Reduce pressure at port (2) to 0 psi.
29.
Reduce voltage at receptacle (9) to 0 volt.
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