Great thanks for your help

The gun is permanently attached that’s the thick lead at the top. The machine also does arc welding so that’s how it currently setup. So does that jumper go into the far left port?

Hey guys I’ve just started getting into welding so got my first welder. The manual is pretty much useless I’m mig welding with flux cored so I need to set the welder to dc negative how do I set my welder to negative when it has nothing inside the case, your suppose to use the jumper cable on the out...