TM 55-1520-240-23-6
7-280
TEST CARGO DOOR SEQUENCE VALVE (AVIM)
(Continued)
7-280
35.
Push in cartridge (14) until mark aligns with
housing (15). Use reverse spring scale (19).
36.
Apply 3000 psi to port (2).
37.
Push in and hold MANUAL OPER knob (13).
38.
Turn detent (20) clockwise.
39.
Release MANUAL OPER knob (13).
40.
Check force on scale (19) needed to keep mark
on cartridge (14) aligned with housing (15).
Force shall be 50 pounds or less.
41.
Check pressure at gage (17). Pressure shall be
3000 psi.
42.
Release cartridge (14).
43.
Push in knob (13).
Turn detent (20)
counterclockwise until it locks in place.
44.
Reduce pressure at port (2) to 0 psi.
45.
Disconnect hoses (1, 4, 6 and 8) from valve (3).
46.
Remove alignment mark from cartridge (14).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
7-1043
