I noticed tonight that my idle (boy I'll be glad when the arbor is done) Dewalt 625 is really tight on the armature bearings. I can't remember when I last tried to turn the armature by hand, but it is really snug. I can just turn it manually and when I shut it down it barely runs before it stops. I blew it out with air from both ends and it blew out a little more dust when I fired it up.
Are yours that tight? My 621 is really easy to turn by hand. Should I tear it down and give it a really thorough cleaning? I've not done that with a few (hundred?) board feet run through it on the table since new. My cabinet does have a pretty fair dust collection system but it doesn't get it all.
David