Try this to see where the problem is: remove the belt. Disconnect the
capacitor and jumper the two leads together that went to the capacitor. Try
to start the motor. It should start, but it may start slowly and without a
lot of torque. If it starts, then the internal switch and mechanism are good
and you have a bad starting capacitor. If it still won't start, then the
internal switch is either bad or has sawdust in between the contacts.
Starting capacitors on dual voltage motors are generally rated at around 125
V (because the starting winding will only see 125 V regardless of the
voltage that the motor is connected for). A ballpark for MFD rating is
approx. 200 MFD per horsepower for a 3450 rpm motor.
I found a motor place a little closer by ... more like 20 miles. My wife
brought him the capacitor and he tested it... sadly, it was good.
I schlepped down there at yesterday with the rest of the motor. He opened it
put right then an did quickie diagnosis. He short, he got it working in
about five minutes by cleaning up the contacts on the centrifugal switch and
adjusting it's tension. He said that we pull it apart and clean it up before
returning it. He had it for all of 1:45 before I gat the call that I could
have it back. I don't know what the bill will be but it can't be all that
Thanks all for the help,
I had thought of that when you originally posted but did not post since
it sounded like you had the motor apart, and I assumed that it had been
Exactly the same thing happened to me several years ago. I was using the
saw and it stopped dead. After shopping around, I decided to have it
fixed, and took the motor and my checkbook to the repair shop. It took
him about the same time to fix my motor. As I remember he charged a
couple of bucks for the cleaning.
The good thing he showed me some places that I had not been cleaning and
a couple of oil ports that I did not know exist.
One point. Be caused you were trying to get the motor started you may
check the wiring in the cord and off-on switch. I just discovered
recently that some wires got hot and melted the insulation. I have
taped them and am looking for a replacement switch for my 40 year old
Craftsman table saw.
Yes I know their reputation, but am not about to change as everything
works perfectly and everything is in alignment. With its cast iron top
it will probably passed on to my grandson and be used for another 40 years.
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