⚠ Safety note: This guide involves working with electricity. If you're not completely sure about every step, stop and call a licensed professional. Before you start, always switch off the power at the breaker or close the main water/gas valve.
1 Prepare a safe workspace
Unplug the tool from the outlet or remove the battery, take off the working attachment, and clear away any accessible dust. Wear safety glasses and review the manual for your specific model.
⚠ Warning: Welding produces UV radiation, molten metal, and dangerous fumes. Use a proper mask, gloves, ventilation, and remove any flammable material.
2 Check the current setting for your electrode
Read the range on the electrode package for diameter and welding position. Too low a current often causes sticking, while too high burns through the material.
3 Clean the joint and ground
Remove rust, paint, and grease down to bare metal. Clamp the ground lead close to the weld on a clean, solid surface.
4 Adjust angle and arc length
Strike the arc with a short tap, then hold a gap roughly equal to the core diameter. Damp electrodes and an unsteady hand make striking harder.
? Tip: Take a photo of the starting condition and change only one thing at a time. That way you’ll know which check actually fixed the problem.
5 Reassemble, test, and set limits
Reassemble guards and attachments per the manual and do a short test run without load, then on scrap material. Strong vibration, arcing, smoke, or overheating mean you must shut down the tool immediately.
When to call a professional: If the job involves changes to the electrical panel, the main gas line, or load-bearing walls/beams — or if you're not sure how it will turn out — this is not a DIY task. Hire a licensed professional.