How to Set Up Your Tomahawk Welder Generator for Off-Grid Welding Projects

Welding projects in remote locations demand equipment that's as rugged and ready as the environments you're working in. Whether you're at a construction site, a ranch, or any setting away from the grid, Tomahawk Welder Generators are designed to meet your welding needs reliably and efficiently. Here's a comprehensive guide on setting up your Tomahawk Welder Generator, so you're prepared to start welding with confidence.

Unboxing Your TWG120A Welder

Start by carefully unboxing your welder. Remove all parts, manuals, and packaging materials to ensure nothing is left inside the box. It's crucial to check every component against the manual to ensure all parts are accounted for before beginning the assembly.

Assembly Tools Required

To assemble your welder, you will need:

  • A 19mm socket wrench
  • A 13mm socket wrench
  • A 10mm wrench
  • A 4mm Allen wrench

These tools will help you assemble the welder securely and efficiently.

Assembly Instructions

Attaching the Wheels

  1. Insert the wheel spindle into the right side of the welder.
  2. Use the 19mm socket wrench to attach the wheels securely, then lock the wheel in place with the pin.
  3. Repeat the process for the other wheel.

Securing the Legs

  1. Place the legs in their respective positions.
  2. Secure them using the 13mm socket and 10mm wrench.

Connecting the Handles

  1. Feed the bolt through the handle arm and welder frame.
  2. Fasten the bolt in place using a 13mm socket and wrench.
  3. Repeat the process for the other side.

Connecting the Welding Leads

  1. Strip half an inch of rubber off the electrode holder cable.
  2. Slide the red rubber guard over the top, then insert the exposed cable into the welding plug.
  3. Tighten it in place with a 4mm Allen wrench and slide the red rubber guard snugly back over the plug.
  4. Repeat the process for the ground clamp lead, using the black rubber guard.

Fueling Your Welder


  1. Remove the oil filler cap and check the dipstick.
  2. If it's your first time using the welder, fill the oil tank to the upper limit with SAE10W30 4-Stroke motor oil.
  3. Reinstall the oil filler cap securely.

Note: The oil tank capacity is 1.1 gallons (4.1 liters). Do not overfill.


  1. Remove the fuel cap and fill the tank to the upper level with unleaded gasoline (pump octane rating of 86 or higher).
  2. Reinstall the fuel cap securely.

Note: The fuel tank capacity is 1.6 gallons (6 liters). Do not overfill.

Starting the Welder

  1. Ensure no tools or appliances are connected to the terminals or outlets.
  2. Turn the engine switch to the ON position.
  3. Open the fuel valve.
  4. For a cold start, move the choke lever to the CLOSED position; for a warm engine, keep it OPEN.
  5. Hold the top handle securely and pull the recoil starter grip until you feel resistance, then pull briskly.
  6. If the choke was closed, gradually open it as the welder warms up.
  7. Once running smoothly, connect your leads or devices to the proper outlets.

Connecting Leads for Welding

  • Insert the ground lead into the negative terminal.
  • Insert the electrode lead into either the 80 amp positive terminal on the left or the 120 amp positive terminal on the right.

Following these steps, you'll be ready to tackle any welding project off the grid with your Tomahawk Welder Generator. For more tips and guides on welding, don't forget to subscribe to our channel today!

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