I was using my Bosch colt to route aluminum, which was probably not one of my better decisions. I was taking very light passes, using lubricant, and turning it off for a minute between each pass. It did not seem exceptionally hot. However, in the middle of a pass it suddenly lost most of its power and started making a quiet whirring noise instead of the screech it usually made. I took out the brushes and see no obvious signs of damage. I have not opened it up. Thoughts on what I should be looking for?
If it is not an easy fix I'll just buy a new one, but I figured I'd give it a shot first.