REFLECTOR: Hydraulic switch for gear doors

[Jeff Clough]

OK folks...gotta question for ya......I recently reworked my correctly 
operating hydraulic retract system to correct some poor workmanship 
(Mine)....I also wanted to move the gear down dump handle. When all was 
said and done I wound up reversing the connections on the hydraulic 
switch which closes the gear doors. (I didn't THINK it mattered) Well, 
it seems this switch may act a  bit like a diode in an electrical 
circuit in that when pressure is applied to retract the gear, the nose 
gear doors start to close before the switch is contacted...like there is 
some leak of hydraulic pressure/fluid through the switch in this 
direction....did not happen before when the system was working but 
plumbed differently...before I get myself all oily and try to reverse 
the plumbing (I have the old style location for this switch deep in the 
center console)...is this going to fix this problem?  Anybody seen 
similar actions when the switch is plumbed with the high pressue side 
different than plans? The switch plunger  does not appear to be sticking 
....it  slides in and out easily......
  Guess I am going to get all oily anyway....just wondering      Jeff 
Clough