I'm having an issue with my Harrison M300. I was wondering if anyone can narrow it down for me, or has had a similar occurance. The motor overload relay trips after a minute or so of running with no spindle load. I figure that it is because I'm using a static phase converter, but I'm not so sure. The lathe is new to me, and I was only able to hear it run for a short period of time before I bought it.