does anyone knows about why c130 E and c130 H stated below...
"Ramp and door operation can be accomplished by the aux pump or handpump. (Ground operation) IAW 1C-130E(H) -1
For cargo door operation with the aux pump (Verify ramp and door controls` are in neutral first) (CLOSE, NEUTRAL, OPEN) locate the toggle switch, turn the aux pump switch ON, move and hold toggle switch tothe OPEN
position until door is full open and in the uplock. To close the cargo door (On (E model aircraft prior to AF 72-1288) hold the door switch to OPEN position and while holding switch pull the manual door release handle until the uplock is released,release the toggle switch to NEUTRAL and door will close, release manual release handle. (On aircraft after AF 72-1288 and (H) models use close position to close cargo door)."