Giant tig200p ac/dc welder schematic

Hello, first time posting. Need Giant welder schematic. When flipping switch to up/downslope, the welder start without touching the torch switch. Also looking for info on foot pedal. Is it necessary to use two pots for this welder.

This is a dangerous circuit and no one will discuss it if its their head on the line. What ever I say, show, imply and other do at your own risk

I don't know myself so you can start from here.

Owner's manual:

And the most important link: