TM 1-1520-240-MTF4-4713. RAMP CONTROL VALVE handle — UP. Checkthat ramp moves to the full up position and cargodoor remains retracted.14. RAMP CONTROL VALVE handle — DN andhold until ramp is at mid-position, then STOP.Check that ramp stops at mid-position withcargo door fully retracted.CAUTIONDo not manually operate cargo door with rampin full up position. Damage to door and fuse-lage will occur.15. RAMP CONTROL SEQUENCE VALVE — Turnpin to vertical position.16. RAMP CONTROL SEQUENCE VALVEMANUAL OPER knob — Pull up and hold.Check that cargo door extends fully.17. RAMP CONTROL SEQUENCE VALVEMANUAL OPER knob — Release. Check thatcargo door retracts fully into ramp.18. RAMP PWR switch on overhead panel — OFF.19. RAMP CONTROL VALVE handle — UP. Checkthat ramp does not move.20. RAMP CONTROL VALVE handle — STOP.21. RAMP PWR switch on overhead panel — ON.22. RAMP CONTROL VALVE handle — DN. Checkthat ramp moves to the full down position(resting on the ground), and cargo door remainsretracted.23. RAMP CONTROL VALVE handle — UP. Checkfor the following sequence of actions:a. Ramp moves upwards and stopsapproximately 8 inches from the fully closedposition.
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