Maintain Your 240-Volt Mig Welder with These Tips Part 2

Date Posted:20 March 2023

Looking for more tips to keep your 240-volt MIG welder for longer? Check out part two of our series with even more helpful pointers!

Check the Gas Hoses and Fittings, Too

Check that the gas tank is firmly in place, then open the valve and set the flow rate. Once this is done, close the valve again. Examine the tank, valve and related equipment to make sure there are no visible signs of damage.

Wait 15 minutes and look at the output gauge. If the reading is lower than the starting point, there is a leak. Spray a spray bottle filled with soapy water around the hose and fittings. If you see bubbles coming out of any area, that is where the leak is.

Using MIG welding shielding gases, although inert, is not free of cost. If there are gas leaks, it will cost money and cause welding issues such as porosity.

Remember to Inspect the Drive Rolls and Tension
Replacing the drive rolls is typically optional, but checking them periodically for signs of wear or damage is still important. To do this, remove the wire spool and any rust or metal shavings with a wire brush. Make sure to align the drive rolls with the type of wire you use and adjust the tension accordingly. With regular inspection and cleaning, your drive rolls should last long.

Clean the Liner

The liner is an essential part of the 240-volt MIG welder gun that is often overlooked. An unseen component helps ensure the wire is fed smoothly from the feeder to the contact tip. Without it, wire-feeding issues can occur and disrupt the welding process. Therefore, paying attention to the liner and replacing it when needed is important to ensure a seamless welding experience.

To clean your liner, unplug your welding machine and open the side panel. Find the retaining screw with the power pin in place, and unscrew it. Unplug the control plug, and pull the MIG gun away from the machine. Cut the wire in front of the drive roll, making sure not to clip it behind the drive roll if the spool is still full, as it might unwind and cause a mess. Once the wire is cut, pull it out of the liner and discard it. Now, you can clean the liner with a brush or compressed air. Reassemble the liner, plug everything back in, and you're ready to get back to welding.

Disassemble the MIG gun and take away the expendables. Pull the wire out of the liner and use fabric to cover up the opening. Blast the inside of the liner with air pressure. Reattach the gun to the welding machine; you will be finished in five minutes.

Clean the Machine, Too

To keep your machine functioning properly and efficiently, it is important to clean it regularly. Occasionally, you should inspect your machine for any dust buildup and use a compressed air canister and a cloth to remove debris. This will help your machine remain in optimal condition and run smoothly.

In Summary

Keeping your MIG welder clean goes a long way in making it last close to forever. Remember that after working on a tough project. Happy welding!

Check out part one of our series here!

Find High-Quality Welders from National Welding & Industrial Supplies

We provide welding tools and supplies to customers in Australia that can meet customers' needs. Check out our range of 240-volt MIG welders on our home page under "Subcategories" now

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