Blowing Breakers

[drdale]

Recently I have been tripping my 20 amp breaker. I have a Mark VII and not had this problem before. I was using the moulder and just doing some fir test pieces. Just taking tiny graduations and the motor was not stressed at all. It even tripped after I stopped running wood through. There is nothing else on that circuit. The cord was pretty warm. No hot smell from the motor. It is an old machine but in good shape. Could the cord or plug be old and causing this? I have ripped plywood and done other much more strenuous work on it before. Strange.

[BuckeyeDennis]

If the power cord is "pretty warm", then there is a problem downstream, and the breaker is performing just as it should to help prevent a fire.

The real ShopSmith experts here can hopefully help you find the root cause, without breaking the bank.