Install the Gas Solenoid

• 1). Turn off your welder and unplug the machine from power. Use the 5/16-inch nut driver to remove the side of the case. Remove the screw on top of the case that holds the back in place. Push the hinge pin out of the back hole and remove the hinged door. Remove the 1-inch plug in the back of the case by pushing from the inside while squeezing the snap tabs. Attach the included plastic tube to the barbed end of the solenoid firmly. Install the fitting so the female coupler protrudes from the rear panel and secure it with screws.
  
  
• 2). Feed the plastic tube toward the front of the welder along the center panel and pass the end through the hole near the top of the center panel. Using the pliers, press the end of the tube onto the barbed fitting on the gun connector block located near the front of the machine. Pull on the tube to make sure it is tight. Use the provided plastic tie to attach the tube to the input cord that feeds through the compartment. Trim the tie with the side cutters.
  
  
• 3). Connect the wire terminals from the solenoid to the H1 and H2 terminals on the circuit board inside the compartment. Reinstall the hinged side door and use the Phillips screwdriver to replace the top screw. Replace the side panel using the eight screws and nut driver.
  
  
• 4). Follow the instructions in the welding machine manual to change the the gun liner, polarity, tip and nozzle. Install the new welding wire as shown on the inside panel of the wire compartment.
  
  
• 5). Obtain a tank of the appropriate welding gas from a local supplier. Secure the tank to the welder and connect the regulator hose to the welder and install the regulator on the tank using the adjustable wrench.