A couple of days back I was doing some carpentry, the missus wanted new doors on bedroom cupboards. I have a hobby sized table saw that I was using pretty much continuously for close to a couple of hours and it stopped before I had finished the job. Firstly I thought that it was the motor thermal cutout, so I gave it time to cool. Horrible noises and sparks emanated from the case when I attempted to restart and the contactor would throw out immediately.
The process of fixing it is described in this video
along with other tool videos at
BTW. The new saw takes a 190 mm blade whereas the original was 250 mm but the new one protrudes more and so it is capable of a deeper cut.