[Farmall] ihc parts books online

[Dean Vinson]

John, the way I remember how to polarize the generator is by saying "you
jump from A to B."

I tend to forget the science of it if I go very long without reading up on
it or having somebody re-explain it to me.  Bigdog puts it very well:  "You
are actually momentarily applying battery voltage to the generator armature
to set up the residual magnetic field in the generator so it will charge
with the correct polarity."

Battery voltage is available at the Batt terminal on the voltage regulator.
The A terminal on the generator is connected to the armature.  So to "apply
battery voltage to the generator armature" you just briefly touch a jumper
wire between the Batt terminal on the regulator and the A terminal on the
generator.  Or, since it doesn't matter which one you touch first and it's
easier for me to remember it this way, I "jump from A to B."

It also works exactly the same way if you do as Bigdog said, and "Take a
short jumper wire and touch it to the Batt terminal and the Gen terminal on
the regulator or cutout".  The Gen terminal on the regulator is hard-wired
to the A terminal on the generator, so touching either one has the same
effect.  "Batt to Gen," "Batt to A," or "A to Batt" all do the same thing.

The main thing is NOT to apply battery voltage to the F terminal.  I forget
the science of that too but I know it falls into the category of "bad
things."

And you're right, once you get a new regulator it'll be easy to see the
"Batt" marking on one of the lugs.  On my M the Gen terminal is on the
bottom of the regulator where it's hard to see, which is another reason I
use the A terminal.  Here's a picture where you can see the short wire from
the A terminal looping around to the underside of the regulator, where it
connects to the Gen terminal.
http://www.vinsonfarm.net/photos/M_regulator_rewired.jpg.


Dean Vinson
Dayton, Ohio
www.vinsonfarm.net



-----Original Message-----
From: farmall-bounces at lists.antique-tractor.com
[mailto:farmall-bounces at lists.antique-tractor.com] On Behalf Of John Bailey
Sent: Saturday, December 20, 2008 11:52 AM
To: Farmall/IHC mailing list
Subject: Re: [Farmall] ihc parts books online

The two terminals on my generator are labeled A and F. The voltage regulator

is a pile of rust.
I supposed when I get a new regulator and have it all wired up "Batt" and 
"Gen" will be obvious.
Thanks.

John