Miller HF-250D help

[cruizer]

Plug the 14 pin from the hf into the trail blazer, hook up the gas into the hf box. You will need a foot pedal also hooked into the hf box to make everything work.

[wickedmetal]

I just picked up a Miller Trailblazer 250G and a Miller HF-2501 High Frequency box serial #JK620114 . They company I got them from said they used them both together but the connecting wires are missing ( but it does have a air cooled torch on it ) and no one remembers how it was hooked up. Can someone help me out with what I need ? The manual is kind of vague.