T66 5 HP motor trouble

SOURCE: delta table saw motor trips breaker

The motor needs a new start capacitor.

SOURCE: Motor has started t0 smoke and trips circuit breaker

On the motors I deal with there is a series of numbers that identify the shaft size, hp and all other requirements. I would try and contact a local Grainger and see if they can help, if not try in the yellow pages for a motor repair shop in your area and sometimes they can get you one. Good luck

SOURCE: Delta Radial arm saw 33-990 tripping circuit breaker

I doubt the motor is bad. Try it on another circuit to see if the same problem exists. Due to the inrush current of the motor, the circuit breaker may now be defective after several years of use.

If you have the ability, determine the no load current on the motor, and then try it cutting a piece of wood.to determine the load current. If it is within the rated current of the motor, then it's fine.

SOURCE: I HAVE A CRAFTSMAN MODEL # 137.218041,, 10

Sounds like you may have overheated the motor. I'm surprised the overload on the motor didn't trip first. With this overheating, the windings in the motor have basically shorted out to ground. This is why your breaker is tripping. Rewinding the motor is no longer the option these days. You can try going online to www.searspartsdirect.com

SOURCE: 20 amp Circuit breaker trips everytime I flip the

I assume that you are using the motor on 115 volt service. Remove the drive belt and check for excess friction in either the saw arbor bearings or the motor bearings. If both seem free to turn, then suspect that the start capacitor on the motor has failed. They usually become open circuited which prevents the start rotation. It will just sit there and hum loudly until the breaker pops. You may also have a defective 20 amp breaker--you will need a clamp-on AC ammeter to verify. Suggest that you run the saw on 230 volt service when you get it running. You will be amazed at the acceleration and apparent power available. My table and radial arm saws are both set for 230 volt operation and love it. Go to: Searspartsdirect.com and enter the complete model number minus the decimal point. This will take you to a series of drawings that list all replaceable parts. Hope this helps!