Thanks for the reply, will do when I get home. I pulled one of the brushes just to see what condition it was in, but I didn't pull all of them, so I'll check that. I did blow compressed air into all of the works and a lot of dust dirt and what looked like carbon blew out. I've watched batteries as the lift motor was running and only drops to 23.8 volts. Will try what you said later, thanks.