I have a brand new (to me) KM3 that will start up and calibrate, but when I try and start the spindle, it fails. I can turn the spindle quite easily by hand, and I can hear the motor trying to start. There is a possibility that the 3 Phase is wired in reverse, but I don't know what it would do if I were to switch it, and since I am fairly certain I have it correct, I would rather not risk it.

Any recommendations?