I don't know how to check the electrical operation of the microswitches, but
they're critical. It's not just the squat switches, but if your Arrow, like
my Comanche, has gear-up switches (to turn off the gear motor once the
wheels are stowed), they'd better work. If these gear-up switches don't turn
off the juice to the motor, it keeps drawing power -- which can burn out the
motor and/or discharge the battery in flight. I had this problem and it was
expensive: I replaced two gear motors and experienced two inflight
electrical system failures before we finally traced the problem to a single
bad microswitch. Talk to your mechanic about this and do a continuity test
at annual time.

Seth
N8100R





"Mike Granby" wrote in message
ps.com...

For the lights/horn to sound, you'll need to have the master on. Not
sure I'd want to be playing with the landing gear and its switches with
power to the system. Imagine there's a problem with the gear control
circuit, and you "test" the squat switch, causing the gear to start to
retract. Could spoil your day...........