Came out to the wonderful smell of melted plastic and electricity to find a partially finished carved
Upon investigation I determined the cut motor was seized up. Expecting to find bad bearings I pulled everything apart. Unexpectedly I found one brush side had completely melted. The brush welded into the plastic mount and the mount completely deformed from heat. Not a cheap repair, but before I do I am wondering what the underlying cause could be? I dont wanna spend $200 only to melt the next one. LHR service guide doesnt even spec brush replacement until 250hrs, only had 197 hrs on this one. Pics show the one side being good with about 50% brush life remaining. The other side completely seized and melted.