I just received my super ultra 205 machine last night and I was going through the processes that I am capable of doing right now and I was having trouble with the plasma cutter. I had everything wired up properly bc the stick process worked with no problems. When I tried the plasma it seemed like everytime I tried to cut it was wanting to ground out and not creating a cutting arc. I did have an issue with inserting the plasma fitting into the machine bc it didn't want to turn and tighten down so I'm not sure if that could be it or if the machine itself needs to be grounded to a rod into the ground. I checked everything else I could think of at 7:30 last night and decided to give up for the time being I got cold. Lol. Any ideas on what could be causing this problem and any solutions would be greatly appreciated.

Thank you in advance.