Hi Tom
If you have not got a lathe, an electric drill will do the job for something
as small as a wiper motor armature, clamp the drill in a vice (not too
hard ) or Black and Decker workmate or similar. Mount the armature in the
drill with the comutator nearest the chuck and spin, use emery cloth to
clean and then a Stanley blade to undercut the mica (not spinning for this
bit!).
I would challenge anyone to do it by strapping and keep it anywhere near
round!
Graham.
----- Original Message -----
From: "T. S. White"
Subject: Re: TR3A Windshield Wiper Motor Disassembled
> The shop method for cleaning an armature is to mount it in a small
> lathe. Then turn the armature down until just removing the wear and
> runout. Then undercutting the mica between the armature blades. A less
> correct method may be to sand the armature with emory cloth straping it
> like a shoe shine to try and keep it round.
>
> >Question 2: Does anybody have a favorite way of cleaning armatures that
> have
> been nested in by wasps? Or is standard electrical contact cleaner
> about
> the
> best option.<
>
> --
> Best regards,
> Tom
>
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