I used the Alpha Aviation battery master relay kit. (STC) It takes a huge load
off of the Master Switch.
Jim Stasny
N99215 '46 415-C
Jacksonville, FL
----- Original Message -----
From: Donald
Subject: [ercoupe-tech] Re: Wiring Diagram
Thanks much guys! The info I needed was in the Service Memorandum 23, which
shows more clearly the functioning of the master switch. I hope the switch has
some indication on how to properly hook it up. I sure can see where the
addition of a solenoid would be wise. My Coupe which I bought "only" 500 miles
from home, has been in a delivery mode since last year, still 300 miles away,
the last drop from the sky was from a generator not charging and battery going
too low to allow radio transmissions. Generator and regulator off and checked
out, still no charging! Turns out the master switch apparently has an
intermittent disconnection on the generator field to regulator side of the
switch. New master switch is being delivered for installation.
> I can see a need for some updates, that master looks like trouble with add
on of radios, transponders etc.
Apparently the high current side that switches the starter wire was OK, the
other side of the switch that connects the field on the generator to the field
terminal on the regulator failed, I don't suppose that side of the switch is
very robust.
I could only guess that perhaps age might have contaminated the contact
surfaces. There is not even a fuse in that circuit, I would suspect not much
amperage ever goes thru there. Another possibility is that the starter switch
portion of the master got hot from current draw and ruined the "field" portion
of the switch.
Has anyone else had this problem or care to speculate?
.
