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Hi Gene,
The post from Scott and the
schematic doesn't have the spec for the diode on it, but I recall talking to a
local electronic guru who assured me that a diode from Radio Shack would work to
prevent the high voltage spikes... but that info is at the airport.
The problem I had was because I
had wired the landing gear so that I could pull the breaker for the
hydraulic pump, while the master eminedremained on. The master
runs continuous 12v through the solenoids, which are not continuous duty, and I
melted the down solenoid, while adjusting the gear light switches.
That caused me to realize that
what Scott said was true.... the only way to prevent this happening was to wire
the solenoids after the big 50a breaker for the hydraulic motor ... which
I did. Thus, as soon as the pump increases the pressure enough the
pressure switches cut off voltage to the solenoids.
I also replaced the melted
solenoid. And to obviate the spikes, wired a diode into the plus side of
the solenoid... will check the diode tomorrow at the airport.
Terrence
L235/320 N211AL
----- Original Message -----
Sent: Tuesday, April 14, 2009 20:06
Subject: [LML] spike suppresion
diodes
Does anyone have a part# for the Diodes. I was
going to place a order with Mouser but am overwhelmed by the 20 some pages of
diodes.
Terrence you posted you saved a
schematic from Scott K. could you or Scott post that again, I remember
seeing it and thought I saved it but can't find it .
Gene Martin
LNC2/320
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