I have an old single phase 110V 5.6amp 1/3HP 1200rpm induction motor that operates a scroll saw..The motor ran well in the past but now it won't start, it just sits there drawing current. If I spin the motor by quickly moving the belt it will start.
It has capacitor start and the cap measures 84 mfd. I'm assuming the cap is OK because I can read the value with my capacitance meter. I can't read the cap rating printed on the cap clearly but it looks like its a nominal rating of 72 mfd. Is this reasonable?
Is there a centrifugal switch that switches out the capacitor when it starts running?
Any other ideas what the problem could be?