TM 55-1520-240-23-6
7-283.5
TEST CARGO DOOR PRESSURE ACTUATED VALVE
(Continued)
7-283.5
SHUTOFF FUNCTION, LEAKAGE, AND BLEED RATE
29.
Connect test stand pressure hose (11) at port
C of valve (2).
30.
Connect test stand return hose (12) at port D.
31.
Bleed all air from test setup solenoid valve (13)
and pressure line (1) to 0 to 200 psig gage (14).
32.
Apply and maintain 3000 psig pressure at port C
with port D metered at 1.2 gpm.
33.
Apply increasing pressure to port A with port B
open until valve (2) fully disconnects port D from
port C.
34.
Port D shall be fully disconnected from port C
at 35 to 65 psig.
35.
Port C to D leakage shall not exceed 10 cc.
36.
Increase pressure to port A. Close valve to 200
psig gage (14) and energize (close) solenoid
valve (13).
37.
Measure time in seconds from the moment
solenoid valve (13) is energized until port D is
fully reconnected to port C.
38.
Port D shall be fully reconnected to port C in
3.0 seconds maximum after closing of solenoid
valve (13).
7-1062
