6. (#1) This post is the negative output receptacle for the TIG torch. On the Invertig-160 DC all TIG work is done in straight polarity with the torch in negative and working positive to ground. If stick welding then this would be set up differently, we can get into this later, for now we are setting up for TIG welding.
(#2) This is the pin trigger connection for the TIG torches with built-in on/off switch function, we are using the foot pedal as the on/off switch so this is not used at this time.
(#3) This is where the gas (Argon) line from the torch mounts and is controlled by the solenoid valve inside the welder.(#4) Here is where the foot pedal (amperage control) mounts, this is also a push and twist lock mount.
(#5) This is the positive output receptacle. When TIG welding this is where the ground cable connects. Once more, all TIG work is done in straight polarity with the torch in negative and working positive to ground.