[Milsurplus] Sleepy Dynamotor

[gl4d21a at juno.com]

I wanted to mention the stuck brush possibility.  Robert or David can correct me, but something, and I seem to recall it was certain lubricants, when they soak into carbon brushes, cause them to swell and jam in the holder.

73,
George
W5VPQ

---------- Original Message ----------
From: Clare Owens <clare.owens at gmail.com>
To: Greg Mijal <bluebirdtele at embarqmail.com>, milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] Sleepy Dynamotor
Date: Fri, 18 Mar 2011 16:50:52 -0400

It's unlikley but you could find a stuck brush so check to see whether they
move freely.  I've only seen one so far but it was a honey - I had to remove
the end frame and hammer it out of the brush holder.  Luckily I had proper
spares and the spare fit nicely so maybe the original brush had a swelling
problem?  Anyway I had a really swell time fixing it :-)  It flew over my
workbench and I found it hiding on the carpet several months later.

Clare

On Thu, Mar 17, 2011 at 7:25 PM, Greg Mijal <bluebirdtele at embarqmail.com>wrote:

> Hi:
> I want to fire up a 24 vdc dynamotor for a project here.
> Can some one tell me what I need to do to make sure the brushes perform
> properly?
> I need to know: Technique and any chemicals involved for a clean up.
> Thanks
> Greg
> WA7LYO
> Kinston NC
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