Never touch live electrical parts or the welding circuit while the unit is on.
Always use a welding helmet with at least a #10 shade lens to prevent permanent eye damage and "sunburn" to exposed skin. century-welder-manual
Keep a chemical fire extinguisher nearby and ensure the work area is well-ventilated to avoid toxic fumes. 2. Machine Specifications & Setup Define the capabilities of your specific unit. Century FC-90: Low Cost DC Flux Core Welder Never touch live electrical parts or the welding