About 3 o'clock yesterday afternoon the PC router motor on my PRS started sounding like it was slowing down, so I paused the toolpath and called my wife over (I'm about 85% deaf). Sure enough, she said, it's running way too slowly. I resumed the toolpath, but it was immediately obvious the motor was struggling to make very light cuts in tooling dough (on top of foam), so shut it down for the day, as I had other chores to get done. The motor didn't repair itself overnight, so this morning I checked the power: 120.1 volts and 60.0 Hz.
Is this the dreaded "brushes and bearings" impending failure I read about? And if so, does anyone have links handy showing how to change them out? This router motor has run without issue cutting foam and tooling dough for 3+ years, so I wouldn't be terribly surprised if it's worn out.
TIA! Stan