I justbought a millermatic 250 for a pretty good price... It was wired to a breaker box so it didn't come with a plug, when they removed the unit to sell they removed the cover and disconnected the power cables from the inside of the unit (to re-wire the replacement). Where do the two power cables and ground hook to inside of the unit?
It kinda looks like the two power cables hook to the power switch and the ground gets bolted to the "floor" of the unit? Does this sound right?