Got my new PP505 this week

[Bikenstitchz]

I finally received my Power Pro 205 this week. The unit arrived in good condition, but the bag of plasma bits was broken, and what parts remained were strewn about the shipping carton. Also the air pressure gauge was broken. Today I put a power cord on it, did some stick welding, and was very impressed. Much more refined control vs my old Lincoln tombstone unit. Have yet to get some argon to work the tig.

I hooked up the plasma torch and regulator(with the gauge sans glass), and can't get it to hold an arc for more than an instant. Double checked the connections, electrode tightness, clean ground, clean metal. I even opened up the torch to ensure it was sound. Any ideas, including preliminary settings? I'm cutting 1/8 steel for practice.

Thanks