I am in the US Navy, on deployment...I "inherited" 3(!) of these wonderful machines recently, and was very excited. Excitement turned to shock, then anger, then shock again, when I found out that all 3 had been run on 220 volts/60hz...the label clearly states 120 volts/60hz. All three look like new...two of them have had their cords CUT OFF!!!, by the same idiot who damaged them to begin with. I'm wondering if I can fix them...what do I check first? I opened one up (the one with the cord) and couldn't see anything wrong. when I tried to operate it, it ran for 1/2 a second, then tripped the breaker. I have a DVOM, and a test light...Thanks in advance for any and all help

 

The high current from operating at 220V may have overheated the unit and burned a winding which then shorted. If that's the case the only cure is to rewind the motor, which likely is not worth the cost.

You might try powering the other two and see if they work.