From: Jeff H (jeffrey.hoch@verizon.net)
Date: Mon Jun 23 2003 - 09:01:26 PDT
Here's another good site on polarizing the generator.
http://vernco.com/id569.htm
Jeff H
----- Original Message -----
From: "kuhrick" <kuhrick@comcast.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Monday, June 23, 2003 7:41 AM
Subject: Re: [MV] M37 generator problem. Do I need to repolarize after
disconnecting battery?
> you apply power too the field to polerzie it
> that starts the mag field that will let the generator charge
>
>
> At 08:06 PM 6/22/03 -0700, J wrote:
> > I'm working on a M43 ambulance, which is pretty much the same as a
> > M37. It won't charge the batteries now, for some reason. There is no
> > voltage on the field or armature wires. I have a test kit (some short
> > breakout wire cables) and found this by touching a 24v test light to
each
> > terminal. I have 24v entering the regulator, which is the newer style,
> > all solid state unit. The generator itself seems to be fine, because it
> > passes the 'motor test', where you put 24v on both the field and
> > armature, and it spins up, just like a DC motor, which it actually is.
> > This is not an alternator.
> > I read several places that generators (not alternators) need to be
> > repolarized after you reconnect them. I searched for "polarizing a
> > generator" on GOOGLE and found these references. Click on
> >
http://bioengr.ag.utk.edu/Extension/ExtProg/Safety/Tractor/TechTips/PolarizeGenerator.html
> >for the story.
> > I made up a jumper and hit the armature with 24v for a fraction of a
> > second as recommended. It still does not put out current. It could be
> > the voltage regulator itself, but I'm trying to do whatever tests I
can,
> > first.
> > Any ideas out there from those that have been in this position?
> > Thanks. Jim
> >
> >
> >
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>
>
>
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