old 240 v welder 3 wire plug - outlet is a 4 wire
I recently purchased an old 200 amp mig welder which requires a 240v supply. I have an existing 240v outlet that was for my range (before i got a gas range). Since the wall that outlet is on shares a wall with the garage, I will basically turn the thing around and use it for the welder. However, the outlet is wired with 4 wires and the welder only has three. I have read numerous thoughts on the conversion and many of them oppose one another. I would like to get a difinitive, and safe answer for how to set up the wiring.