[Arran]

I don't see any solution here other then to try finding a 60 cycle replacement for this changer, that may take some time. The only real way to see if the motor is working properly is to find someone with a VFD (variable frequency drive) to test it with, but everything that I have read and heard is that an AC motor should run faster at a higher line frequency not slower. There were pockets of 25 cycle service in the U.S, most notably in upper New York state around Niagara Falls, I think there were some in Pennsylvania as well, so it isn't a uniquely Canadian thing. In fact much of Canada was always on 60 Cycle power, like in Quebec and the Prairie provinces.
Regards
Arran