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Date:         Thu, 29 Apr 1999 21:23:49 -0400
Reply-To:     "Joe L." <jliasse@TOAST.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         "Joe L." <jliasse@TOAST.NET>
Subject:      Re: QUICK CLEAN ... AFM
Comments: To: David Beierl <synergx@ibm.net>
Content-Type: text/plain; charset="iso-8859-1"

It was the brushes that went. I too was incredulous when it happened but it did. Dont know why. It was only a cheap motor that powered a toy. Maby that is a clue. They LOOKED like regular carbon brushes but maby they were not; although if they were not I cannot think of what material it may have been. I know what you mean about some of these things disolving plastics. As far as I know the plastic disolvers are usually labeled "ELECTRIC" cleaner as opposed to "ELECTRONIC". I am probably being overly paranoid in wanting the EXACT brand he used on his AFM but I figure if I get his and it screws things up I will have someone to cuss besides myself. That always makes me feel better. ( -;

----- Original Message ----- From: David Beierl <synergx@ibm.net> To: Joe L. <jliasse@TOAST.NET> Cc: <vanagon@GERRY.VANAGON.COM> Sent: Thursday, April 29, 1999 5:08 PM Subject: Re: QUICK CLEAN ... AFM

> At 16:16 4/29/99 -0400, Joe L. wrote: > > > > I had considered doing that but did not due to an expierence I had a few > > years ago. I sprayed electronic cleaner on some brushes on a electric motor. > > The brushes desolved!!! > > That you got away with it indicates that all electronic cleaners are not > > created equally. What brand did you use? > > > Joe, *Electronic* contact cleaner (used to) contain(s) one of the > lower-vapor-pressure Freons, often with some silicone lube. Dunno exactly what > the solvent is now, but it's not generally harmful to plastics. *Industrial* > contact cleaner, OTOH, also contains something like methyl chloride which gives > it more bite -- and melts plastic. Check the labeling on the can for warnings, > or buy Radio Shack brand which is safe for plastics. > > I'm scratching my head over one thing -- brushes are ordinarily made of carbon, > which is pretty much insoluble in everything. Was it the brushes themselves > that went away, or a plastic housing? > > david > David Beierl - dbeierl@ibm.net


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