switch check for landing gear
- Thread starter dpuhlein
- Start date
Bob&Patty
Founders of SoCal Chapter
Check and see if you have an inline fuse somewhere near the battery. If you run the landing gear too far up and are still pushing on the switch....it will blow the fuse. If the fuse is blown....you need to mark the legs when they are almost fully up and stop at that point. That way you wont keep blowing fuses.
wdk450
Well-known member
dphulein:
Your switch is wired in one of 2 ways. Both of these schemes are basically the same thing, just one has the incoming voltage on the end terminals, motor voltage on the center terminals; and one has the incoming voltage on the center terminals and motor voltage on the end terminals.
My landing gear switch is all sealed up with shrink tubing and i don't want to slice that open for this, but I did measure the voltage on the wiring and can tell you that incoming 12 volts is on the pink and black wires, and outgoing voltage to the motor is on the red and black wires.
So what you need to do (Carefully, this has 50 amps of 12 volt DC available - enough to weld with) is to somehow jumper the incoming 12 volts and ground directly to the 2 wires going to the motor. Polarity doesn't matter as you are just doing a quick touch-the-wires-and-see-if-the-motor-jumps test. As a hint, these switches are one of the weak links in the landing gear motor wiring. More often it is a fuse or circuit breaker causing the problem.
Good luck!!
Your switch is wired in one of 2 ways. Both of these schemes are basically the same thing, just one has the incoming voltage on the end terminals, motor voltage on the center terminals; and one has the incoming voltage on the center terminals and motor voltage on the end terminals.
My landing gear switch is all sealed up with shrink tubing and i don't want to slice that open for this, but I did measure the voltage on the wiring and can tell you that incoming 12 volts is on the pink and black wires, and outgoing voltage to the motor is on the red and black wires.
So what you need to do (Carefully, this has 50 amps of 12 volt DC available - enough to weld with) is to somehow jumper the incoming 12 volts and ground directly to the 2 wires going to the motor. Polarity doesn't matter as you are just doing a quick touch-the-wires-and-see-if-the-motor-jumps test. As a hint, these switches are one of the weak links in the landing gear motor wiring. More often it is a fuse or circuit breaker causing the problem.Good luck!!
Last edited:
porthole
Retired
Do you have hydraulic landing gear? Changes the procedure a bit.
no.. electric only