Harbor Freight Tools 98871 operating instructions

Contents

Main 90 AMP FLUX WIRE WELdER Model 98871 SAVE thIS MAnUAL IMPORtAnt SAFEty InFORMAtIOn general Safety Warnings Page Welder Safety Warnings WARnIng SAVE thESE InStRUctIOnS. gROUndIng grounded Welders Extension cords SyMBOLOgy V~ A OcV KVA IPM AWg SPEcIFIcAtIOnS UnPAcKIng Face Shield (38) Assembly cover (31) Assembly SEtUP Wire Spool (27) Installation IMPORtAnt: WARnIng Page BASIc WELdIng = Practice your welding technique on scrap pieces before welding anything of value. control Panel Layout Weld Settings chart Material thickness (Steel) speed 9.5 speed 8 speed 3 + Basic Welding technique Page WELdIng tIPS cleaning the Weld StRIKE tESt Page 21For technical questions, please call 1-800-444-3353.SKU 98871 WELd dIAgnOSIS Workpiece heat control / Weld Penetration Example Weld diagrams how to increase workpiece heat and increase penetration: how to reduce workpiece heat and limit penetration: WELd PROBLEMS Penetration (Workpiece heat control) coat of Slag Over Weld Burn-through Porosity Excessive Spatter crooked/Wavy Bead + contact tip (2b) Inspection, cleaning, and Replacement tROUBLEShOOtIng Wire feed motor runs but wire does not feed properly Wire creates a birds nest during operation Power switch (7a) lights, but welder does not function when switched on Power switch (7a) does not light when switched on Wire Feeds, but arc does not ignite Welding arc not stable Weak Arc strength Page 30 For technical questions, please call 1-800-444-3353. SKU 98871 PARtS LIStS And dIAgRAMS M Wiring Schematic Pt cS 100 S1 Parts List Page Page LIMItEd 1 yEAR / 90 dAy WARRAnty