Northern Industrial Tools ST80i manual

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Please read and save these instructions. Read through this owner’s manual carefully before using product. Protect yourself and others by observing all safety information, warnings, and cautions. Fa ilure to comply with instructions co uld result in personal inju ry and/or damage to product or property. Pl ease retain instructions for future refer[...]

Northern Industrial Welding 2 Operating Instructions and Parts Manual ST80i Specifications and Dimension MODEL ST80i Power supply (v) 1ph-120V-60HZ No-load voltage (v) 75V Output Range (A) 20-75A 90A Peak Duty cycle (%) 20% @75A Suggested electrode E6013,E70 14, E701 8, Stainless steel Electrode Diameter (Inch) 1/16”, 5/64”, 3/32” （ 1.6mm ?[...]

Northern Industrial Welding 3 Operating Instructions and Parts Manual ST80i Welding Cable a nd Electrode Holder One end of cable is connected to output connectors of the machine. T he electrode is clamped in the electrode hold er for welding. Output “-” Connector This is the connector for grounding cable when STICK welding. When this machine is[...]

Northern Industrial Welding 4 Operating Instructions and Parts Manual ST80i General Safety Information 1.1 Your Welding Env ironment -Keep the environment you will be welding in free from flammable materials. -Always keep a fi re extinguisher accessible to your welding environment. -Always have a qualified perso n install and operate this equipm en[...]

Northern Industrial Welding 5 Operating Instructions and Parts Manual ST80i connections are a hazard, so secure the ground lead before weldin g. -Wear dry protective apparel: coat, shirt, gloves and insulated footwear. -Insulate yourself fr om the work piece. Avoid contacting the work piece or ground. - Do not attempt to repair or maintain the weld[...]

Northern Industrial Welding 6 Operating Instructions and Parts Manual ST80i explosive materials. -Do not operate any electric a rc welder in areas where flammable or explosive materials are present. -Remove all flammable materials within 35 feet of the welding arc. If removal is not possi ble, tightly cover them with fireproof covers. -Take precaut[...]

Northern Industrial Welding 7 Operating Instructions and Parts Manual ST80i -Always have power disconne cted when working on internal components. - Do not touch or handle PC board without being properl y gr ounded with a wrist strap. Put PC board in static proof bag to move or ship. -Do not put hands or fingers near moving parts such as fan. Assemb[...]

Northern Industrial Welding 8 Operating Instructions and Parts Manual ST80i 4. Ground clamp c onnection Clear any dirt, rust, scale, oil or paint on the ground clamp. Make certain you have a good soli d ground connection. A poor connection at the ground clamp will waste po wer and heat. Make sure the ground clamp touches the metal. 5. Electrode The[...]

Northern Industrial Welding 9 Operating Instructions and Parts Manual ST80i c. The bead will be flat and porous d. Rod may be freeze or stick to work piece Note: Rate of travel over the work also affects the weld. To ensure proper penetration and en oug h deposit of rod, the arc must be moved slowly and evenly alo ng the weld seam. Operation 1. Set[...]

Northern Industrial Welding 10 Operating Instructions and Parts Manual ST80i A good arc is accompanied by a crisp , cracking sound. T he sound is similar to that made by eggs frying. T o lay a weld bead, only 2 movements are required; downward and in the direction the wel d is to be laid, as in following figure: 2.3 Types of w eld bead The followin[...]

Northern Industrial Welding 11 Operating Instructions and Parts Manual ST80i A. Weld speed is too fast. B. Weld speed is too slow. C. Arc is too long. D. Ideal weld. A solid weld bead requires that the electrode be moved slo wly and steadily along the weld seam. Moving the electrode rapidly or erraticall y will prevent proper fusion or create a lum[...]

Northern Industrial Welding 12 Operating Instructions and Parts Manual ST80i Trouble shooting Chart No. Breakdown Analysis Solutions Poor ventilation leads to over-heat protection Improve ventilation Internal temperature is too high Will automatically recover when the temperature lowers. 1 Yellow Indicator is on Using over the rated duty-cycle Will[...]

Northern Industrial Welding 13 Operating Instructions and Parts Manual ST80i Electrode Holder’s capacity is too small; Replace with a higher Amperage Holder Cable is of small size Replace it with another one in conformity with the requirement Socket loosen 5 Electrode Holder and Cable getting hot;“+” “-” polar sockets becoming hot High re[...]

Northern Industrial Welding 14 Operating Instructions and Parts Manual ST80i Warranty LIMITED ONE-YEAR WARRA NTY Should this product fail to perform satisfactorily due to a defect o r po or workmanship within ONE YEAR from t he date of purchase, return it to the place of purchase and it will be repl aced, free of charge. Incidental or consequential[...]

Northern Industrial Welding 15 Operating Instructions and Parts Manual ST80i 9 Dins connect or (copper) （ ROHS ） 2.07.57.147 2 10 Thermal protection Indicating light 1.2.07.02.3010 1 11 Power Indicating light 1.2.07.02.3011 1 12 Output fixed board 1.1.03.04.0137 2 13 Bottom panel 1.1.01.04.0340 1 14 Temperatur e relay 1.2.07.02.3008 1 15 Driver[...]

Northern Industrial Welding 16 Operating Instructions and Parts Manual ST80i • ANSI Standard Z87.1 — SAFE PRACTICE FOR OCCUPATION AND EDUCATIONAL EYE AND FACE PROTECTION Obtainable from: American National Standards Institute (ANSI) 11 West 42nd St. New York, NY 10036 Tel. (212) 642-4900 Fax (212) 398-002 3 www.ansi.org • NFPA Standard 51B —[...]