Instruction/ maintenance manual of the product 93793 Harbor Freight Tools
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DU AL MIG WELDER Model 93793 ASSEMBL Y AND OPERA TING INSTRUCTIONS 3491 Mission Oaks Blvd., Camarillo, CA 93011 Visit our W eb site at: http://www .harborfreight.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 2 SKU 93793 Contents PR ODUCT SPECIFICA TIONS .......................................................... 3 GENERAL SAFETY RULES .....................
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 3 SKU 93793 PR ODUCT SPECIFICA TIONS SA VE THIS MANU AL Y ou will need this manual f or the saf ety war nings and precautions , assembly , operating, inspection, maintenance and cleaning procedures, par ts list and assemb ly diagram.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 4 SKU 93793 ELECTRICAL SAFETY 4. Grounded tools must be plugged into an outlet properly installed and grounded in accordance with all codes and ordinances.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 5 SKU 93793 T OOL USE AND CARE 15. Use clamps (not included) or other practical ways to secure and support the workpiece to a stable platform. Holding the work by hand or against your body is unstable and may lead to loss of control.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 6 SKU 93793 SPECIFIC SAFETY RULES 1. Ground this pr oduct. This Welder requires the attachment and use of a UL ® - listed, 220 v olt, grounded, 3-prong, electr ical P ow er Cord Plug (not included).
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 7 SKU 93793 10. Prevent accidental fires. Remove any combustible material from the work area. • When possible, move the work to a location well away from combustible materials.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 8 SKU 93793 • Have a recognized specialist in Industrial Hygiene or Environmental Services check the operation and air quality and make recommendations for the specific welding or cutting situation.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 9 SKU 93793 17. Use the right tool for the job. Do not attempt to force small equipment to do the work of larger industr ial equipment. There are cer tain applications for which this Welder was designed.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 10 SKU 93793 2 . The grounding prong in the plug is connected through the green wire inside the cord to the grounding system in the tool.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 11 SKU 93793 AXLE BRACKET (40) AXLE (44) W ASHER (42) COTTER PIN (41) AXLE BRACKET (40) COTTER PIN.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 12 SKU 93793 FIGURE C NUT SPOOL AXLE SPOOL SPOOL CLIP WELDING TO INST ALL A 10 LB. WIRE SPOOL 1 . Lift the Access P anel (31) of the Welder to e xpose the Wire F eed Assembly .
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 13 SKU 93793 TO ROUTE THE WIRE NO TE: When installing wire of a diff erent size or composition, y ou will also need to change wire settings, set the gun polarity , and, possibly , install a gas cylinder .
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 14 SKU 93793 W ARNING! EXERCISE EXTREME CA UTION - RISK OF FIRE AND/OR ELECTRIC SHOCK! The follo wing steps require applying po wer to the W elder . Do not touc h an ything with the T orc h Handle or W elding Wire or an arc will be ignited.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 15 SKU 93793 TO CHANGE WIRE SETTINGS 1. W ARNING! Make sure to turn off the W elder and unplug it from its electr ical outlet prior to changing wire settings.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 16 SKU 93793 SETTING THE GUN POLARITY FOR WIRE TYPE 1 . Set for Electrode P ositiv e (DCEP) f or gas welding with solid-core wire. P ositive electrode (C), negativ e ground (D).
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 17 SKU 93793 TO INST ALL A GAS CYLINDER W ARNING: Maximum cylinder height is 3 feet 3 inc hes (1m). Maxim um cylinder weight is 88 lb., including gas.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 18 SKU 93793 OPERA TING INSTRUCTIONS BEFORE YOU BEGIN WELDING Good welding requires a high degree of skill and e xper ience. Y ou should practice a few sample welds on scrap metal before you begin welding your first project.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 19 SKU 93793 SETTING UP THE WELD W ARNING! Before welding, make sure to read and understand all safety precautions and warnings discussed on pages 3 through 10.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 20 SKU 93793 7. NO TE: The workpieces should be fir mly held together and in position while welding. Use clamps (not included) to hold the workpieces so you can concentrate on the job at hand.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 21 SKU 93793 WELD SETTINGS CHART FIGURE N Welding Instructions continued on next page.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 22 SKU 93793 18. Squeeze (and hold) the T r igger Switch (51e) of the W elding T orch (51) and stroke the area to be welded with the We lding Wire to ignite the arc.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 23 SKU 93793 WELD DIA GNOSIS EXCESS OR BURN-THROUGH Weld droops on top and underneath, or falls through entirely , making a hole . PROPER Weld is visible underneath and bulges slightly on top.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 24 SKU 93793 CROOKED/W A VY BEAD POSSIBLE CA USES AND SOLUTIONS 1. Stickout too long: Reduce stickout. 2. Inaccurate welding: Use two hands or rest hand on steady sur- face.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 25 SKU 93793 WHEN THE WELD IS COMPLETED 21. Lift the Welding Wire completely a wa y from any grounded object. Set the face shield down. Then, tur n the P ower Switch to its “OFF” position.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 26 SKU 93793 INSPECTION, MAINTENANCE, AND CLEANING 1 . P eriodically open the Access P anel (31) from the unit and, using compressed air , b low out all dust and debris from the interior .
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 27 SKU 93793 REPLA CING THE WELDING TORCH LINER 1 . Switch welder off, disconnect pow e r , and discharge electrode to ground before proceeding. 2 . Secure welding wire to the spool, cut it near the spool, and remove it from the torch and cable.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 28 SKU 93793 PARTS LISTS AND DIA GRAMS WIRING SCHEMA TIC.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 29 SKU 93793 t r a Pn o i t p i r c s e Dt r a Pn o i t p i r c s e D 1l e n a P e d i S2 3h c t a.
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 30 SKU 93793 NO TE : Some par ts are listed and shown f or illustration purposes only and are not avail- able individually as replacement par ts .
For technical questions, please call 1-800-444-3353; T r oubleshooting section at end of manual. Page 31 SKU 93793 Wire Feed Mechanism (15) 15d 15e 15c 15a 15f 16 15i 15j 15h 15g 15b ASSEMBL Y DIA GRA.
IMPOR T ANT! Be CERT AIN to shut off the Welder , disconnect it from power , and discharge the tor ch to ground before adjusting, cleaning, or repairing the unit.
IMPOR T ANT! Be CERT AIN to shut off the Welder , disconnect it from power , and discharge the tor ch to ground before adjusting, cleaning, or repairing the unit.
IMPOR T ANT! Be CERT AIN to shut off the Welder , disconnect it from power , and discharge the tor ch to ground before adjusting, cleaning, or repairing the unit.
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