Thanks Mitch, that worked great for replacing the brushes.
In doing so, I noticed that one of the springs is questionable. So far, "The Virginian" still runs great (with the recent addition of a replacement E Unit).
Do you have a tutorial for replacing one or all of the springs? I'm okay with soldering, if necessary.
I have the new springs on hand, if needed. OR,
"If it ain't broke, don't fix it" ??