Hello everyone,
i want to fit a hyperterm torch body to my nameless machine.
Just to be sure i wire it up right, i want to ask if i'm right.
From my nameless machine i have a pilot arc wire and the air hose with the 60A wire in it.

So i thought:
number one -> pilot arc wire
number two -> air hose with 60A wire in it, obviously.
Is this right?
What does that thing marked with number three do??
See the attachment file for picture.
Thanks in advance.