Aderhammer
Member
Anymore when I use the drill press an audible whine starts coming from the motor, started really high pitched but now it's more of a warbling mid range sound (almost out of some sci-fi movie). Is this bushings, bearings, or brushes going bad on the motor? or could it be that the motor needs to be cleaned, I'll check later as to the model #, but it is an older Grizzly.