The brushes are short - less than one half inch, anyway. They are marked as "Autolite 6-I" (perhaps 6-7... hard to read).
I see some brushes for $3
on Ebay right now, but they are a 3-brush set. Can I just toss the third brush out? The two brush pair looks identical to mine.
The commutator is nearly black.
What's the right way to clean up the commutator? Real fine sandpaper, held against the commutator while turning the pulley end?
Thanks to all for the help.
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