I'm stumped, been working on a power reel (piece of equipment that's basically a turn table) for a few days now and keep getting called back. It has a 180 volt DC Motor and drive in it. I changed both. The damn thing runs great for several hours, until eventually blowing it's fuse. I checked the input power which is fed from busway, and everything between busway and cord drop was fine. I'm stumped and pissed off. Please help!