Mailing List lml@lancaironline.net Message #13464
From: <Sky2high@aol.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: LNC2/LEG2 Gear Electraulics!
Date: Tue, 21 May 2002 08:38:07 -0400
To: <lml>
Oops!  I made another mistake.  The power is not straight off the battery,
but off the master relay.  The text diagram should have been:

     Battery+
          |
     Master relay contact->main bus
                            |
50/60 amp circuit breaker
       | 20 awg               | 8(10?) awg
5 amp fuse    motor relay's power "contacts"
       |                 |                            |
   Up/Dn Sw     Up Contact->I        Down Contact->I  I=Indicator
       |    |             |                           |
   Presr Sws        Motor up         Motor down
       |    |
    Up   Dn relays

Protect Indicator circuit with diodes (no backfeed) and inline fuse.

Wiring or re-wiring this circuit is trivial.  I have an Essential bus system,
17 circuit breakers, 20 automotive fuses (in a block), several "in-line"
automotive placed apppropriately and a hidden one in my autopilot.  The fuses
deal with circuits which should not be re-activated whilst in the air should
they blow.  My motor breaker is on the center console, under my forearm - not
it the back as Lancair "suggested" - remember John Denver.  It was very easy
to wire the relay circuit by putting the inline fuse under the glove box,
powered off the motor breaker.

Do whatever you want, but there have been countless gear problems that end up
being relay failures due to the way Lancair has them wired and the operator's
failure to do whatever was necessary to remove power to them.  Remember that
if you pull the motor breaker, there is no power for the indicator light to
come on and show that a relay has been activated.  The proper and safest way
to isolate the electraulics system is to use one device to remove all the
power.  It is worth the effort to change it.

Those of you building Legacies, make sure you wire the gear system properly!

Scott Krueger

PS  Webster didn't define "Ebonics" until it be having widespread use in
California.

Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster