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I wiped the whole motor out, and then blew it out with compressed air.  I replaced the front bearing, and oiled the rear one.  I sanded the commutator a little bit, and put it back together.  I didn’t replace the brushes, as a local vacuum shop said that the aftermarket ones aren’t good.  He also said my windings were burnt, as they are black.  The motor still smells of ozone when it runs, and is still arcing a lot.  The bearing noise is gone, though.  The black color on the windings almost looks to be a coating.  At first, he said they were bad, but then he said they had a lot of life left in them.  The same was said about the commutator.  I was wondering if the windings or the brushes were bad.  They aren’t worn down anywhere near the springs yet.  Thanks,

Thatwasherguy.


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