Polarity is critical for steel and aluminum. You have to swap them. My MIG will do aluminum and I tried it once. I got the right gas, swapped the conectors. I did spend a lot of time straightining out the spool. The only thing I could make with it was swiss cheese!
Gary
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.