(ET) Hand tool info and refurbishment (no Bill content :-)

[Chris Zach <czach computer org>]

Well, thanks to Lee I now have an Elec-trak hand tool attachment to add 
to the collection. A bit of work with a screwdriver, some brake cleaner, 
contact cleaner, and a crimper and it's back in running order.

Now for the question: The motor runs smoothly, but I noticed that I can 
see the brushes softly arcing in the back of the unit against the 
commutator. Should I take the whole thing apart and clean off the 
commutator bars? What kind of brushes does this thing use? And are there 
any special "gotchas" in taking it down? Will normal wheel bearing 
grease be good for the pillow bearings, or should I use something else?

Thanks!
Chris