The darn GEAR, darn it!

[Pete Somers]

OK here we go -

1) Suggests the handle microswitch is either faulty or not rigged properly.
But it could also mean that once the gear is unloaded from the the uplock, ie the handle returns and the gear rests on the uplocks that one of the uplock microswitches is intermittant.

2) Doors will not operate until all the micro switches are made, the door solenoid is operated thru the gear handle microswitch if you have the doors open power must have been removed from the door solenoid so the only thing that can cause that is a uplock microswitch or the handle switch.

3) The handle will not return to its center position until the HYD pressure has built up and the doors are closed.

Yep it does look like one of the uplock switches, with the cam shell doors disconnected pull down each main leg and see what happens, if ok go to the nose gear and do the same.
Check the wiring to the nose gear as it get worn due to the movement of the leg.

BTW the clue is that if you put the handle manually to the center position what happens, you unload the HYD and you move the handle switch.

Good luck and let me know.

Regards
Pete