Landing gear safety CB pops / inner gear doors don't close

[ronnie27478]

During run-up, the gear handle would not move from the down position back to the center (neutral) position as per the checklist procedure. After shutdown, the gear doors were down and an observer told me they dropped down as soon as I started the first engine. I found the Landing Gear Safety circuit breaker popped. After looking at maintenance manual a bit, it appears that maybe the power pack solenoid is bad. I disconnected the electrical cable from the power pack and the circuit breaker no longer popped when the master was turned on. I reattached the electrical connector to the power pack and the circuit breaker popped. Other than the micro switch in the power pack, I can't see any other electrical components in the power pack.


UPDATE:  There is a 35uF 50V electrolytic capacitor across the solenoid.


My Power Pack Assembly
is the Wiebel 2135-1
, Piper PN 481 171
.


The capacitor was shorted.  Replacing the capacitor solved the problem.


Ronnie