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Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual
near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and
the receipt in a safe and dry place for future reference.
Visit our website at: http://www.harborfreight.com
Email our technical support at: tech@ha
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE Table of Contents Safety ......................................................... 2 Welding Tips .............................................. 23 Setup .......................................................... 7 Maintenance .............................................. 27 Specifications ............................................. 7 Parts List and Diagrams ............................ 30 Basic Welding ......................................
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Fume and Gas Safety FUMES AND GASES can be hazardous to your health. 1. Exposure to welding or cutting 4. Use enough ventilation, exhaust at arc, or exhaust fumes can increase the risk both, to keep fumes and gases from breathing of developing certain cancers, such as zone and general area. If engineering controls cancer of the larynx and lung cancer. are not feasible, use an approved respirator. Also, some diseases that may be linked to exposure 5. Work in a confined area only if it to w
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE Electrical Safety ELECTRIC SHOCK can KILL. 1. Turn off, disconnect power, and 6. Do not expose welders to rain or wet conditions. discharge electrode to ground before setting Water entering a welder will increase down torch/electrode holder and before service. the risk of electric shock. 2. Do not touch energized electrical parts. 7. Do not abuse the cord. Never use the cord Wear dry, insulating gloves. Do not touch electrode for carryin
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Welder use and care 1. Do not use the welder if the switch does not turn 4. Store idle welders out of the reach of children and it on and off. Any welder that cannot be controlled do not allow persons unfamiliar with the welder or with the switch is dangerous and must be repaired. these instructions to operate the welder. Welders are dangerous in the hands of untrained users. 2. Disconnect the plug from the power source before making any adjustments, 5. Use the welder and accessories in ac
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE Grounding TO PREVENT ELECTRIC SHOCK AND DEATH FROM INCORRECT GROUNDING WIRE CONNECTION: Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. Have a plug installed by a certified electrician. Do not use the welder if the power cord or plug is damaged. If damaged, have it repaired by a service facility before use. If the plug will not fit the outlet, have a proper outlet installed by a q
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Symbology Wire Feed (Speed) Volts Alternating Current V~ Workpiece Ground Cable Amperes A Torch Cable Open Circuit Voltage OCV Kilovolt Amperes Overheat Shutdown Indicator KVA (Volts / 1000 * Amperes) Cooling Fan Inches Per Minute IPM Housing Ground Point American Wire Gauge AWG Specifications Power Input 240 V~, 20 A DCEN/DCEP Welding Output 30-170 A 22 gauge (0.031″) to 1/4″ (0.25″) mild or stainless steel Capacity Not for welding aluminum 20% at 110A Rated Duty Cycle (See explanation on pag
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE Setup Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product. TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION: Turn the Power Switch off and unplug the welder before assembly. Note: Remove the protective foam and cardboard from the welder before setup. Face Shield Assembly Round B B Tab 1. Attach the handle to the Face Shield b
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Wire Spool Installation I 1. Turn the welder OFF and unplug O it before proceeding. MIG 170 WIRE FEED WELDER ITEM 68885 .023″-.035″ Wire (Tip and roller change required) Capacity 22 Ga. – 1/4″ Steel Plate Material Mild Steel and Stainless Steel Types (Not for welding Aluminum.) WIRE FEED SPEED 240V~ 20A 2. Pull up on the door latch, Door then open the Door. door latch 3. Remove the Spool Knob, Spool Spring, and upper Spool Knob Spool Plate. If replacing a Spool, remove the old Spool a
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE 6a. Flux Core (Gas-less) Wire Setup: Flux Core (Gas-less) Polarity Setup Remove the two Knobs securing the cables. DCEN Connect the Black Ground Cable to the rear, red, Knobs positive Terminal using the Knob. Connect the Red Torch Cable to the front, black, Torch Polarity: – negative Terminal using the other Knob. Torch This is the initial setup, called (Red) Direct Current Electrode Negative (DCEN). Ground Ground Polarity: + (Black
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Feed Feed Swing Tensioner Arm 7. Turn the Feed Tensioner knob counterclockwise to loosen it enough to pull it down to remove tension. (Do not loosen the Tensioner knob too much, or the Tensioner will come apart.) Then, swing the Feed Swing Arm up. Feed 8. Feed Roller Instructions: Roller Check that the Feed Roller is turned to properly Knob match the wire size marked on the Wire Spool: A. Twist the Feed Roller Knob about 1/3 of a A turn counterclockwise until it stops. B. Pull the
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE IMPORTANT: Securely hold onto the end of the welding wire and keep tension on it during the following steps. If this is not done, the welding wire will unravel and create a tangled “bird’s nest”, wasting wire. 9. Cut off all bent and crimped wire. The cut end must have no burrs or sharp edges; cut again if needed. HOLD WIRE Wire welding SECURELY Liner wire 10. Keep tension on the wire and guide at least 12 inches of wire into the Wire
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WARNING The following steps require applying power to the welder with the cover open. To prevent serious injury from fire or electric shock: 1. Do not touch anything (especially not the Ground Clamp) with the Torch or welding wire, or an arc may be ignited. 2. Do not touch internal welder components while it is plugged in. 15. Do not touch the Torch’s Trigger. I Plug the Power Cord into its electrical O outlet and turn the welder ON. MIG 170 WIRE FEED WELDER ITEM 68885 .023″-.035″ Wir
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE 2-3″ 17. To check the wire’s drive tension, feed the wire against a piece of wood from 2 to 3 inches away. If the wire stops instead of bending, turn the welder OFF, unplug it, slightly tighten the feed tensioner clockwise, and try again. Incrementally If the wire bends from the feed pressure, increase tension then the tension is set properly. until wire bends. I 18. TURN THE WELDER OFF. O MIG 170 WIRE FEED WELDER ITEM 68885
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Basic Welding Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before welding. TO PREVENT SERIOUS INJURY: Protective gear must be worn when using the Welder; minimum shade number 10 full face shield (or welding mask), ear protection, welding gloves, sleeves and apron, NIOSH-approved respirator, and fire resistant work clothes without pockets should be worn when welding. Light from the arc can cause perm
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE Control Panel Layout Overload Indicator Torch Cable I O Current Switches Power Switch MIG 170 WIRE FEED WELDER ITEM 68885 Wire Speed Dial .023″-.035″ Wire (Tip and roller change required) Capacity 22 Ga. – 1/4″ Steel Plate Material Mild Steel and Stainless Steel Types (Not for welding Aluminum.) WIRE FEED SPEED 240V~ Ground Power Cable Cord 20A Overload Indicator: Wire Speed Dial: This lights up if duty cycle work period is exc
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Duty Cycle (Duration of Use) Avoid damage to the Welder by not welding for more than the prescribed duty cycle time. The Duty Cycle defines the number of minutes, within a 10 minute period, during which a given welder can produce a particular welding current without overheating. For example, this Welder with a 20% duty cycle at rated output (110A) must be allowed to rest for at least 8 minutes 20% Rated Duty Cycle after every 2 minutes of continuous welding. at 110A output Failure to
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE Flux Weld Settings NO GAS DCEN Polarity Metal Thickness Wire Material Wire Shielding Suggested 22 Ga 18 Ga 16 Ga 14 Ga Diameter Being Type Gas Settings .030″ .048″ .060″ .075″ 1/8″ 3/16″ 1/4″ Welded 0.8mm 1.2mm 1.5mm 2.0mm 3.2mm 4.8mm 6.4mm Current MIN 1 MIN 2 MIN 2 MAX 1 NO .030″ Wire Feed 2 3 4 5 Mild Flux-core GAS Steel (E71T-GS) Current MIN 1 MIN 2 MAX 1 MAX 1 MAX 2 Required .035″ Wire Feed 2 3 4 6 7 MIG Weld Settings GAS DCEP P
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Setting Up The Weld 1. Make practice welds on pieces of scrap the same thickness as your intended workpiece to practice technique before welding anything of value. Clean the weld surfaces thoroughly with a wire brush or angle grinder; there must be no rust, paint, oil, or other materials on the weld surfaces, only bare metal. 2. Use clamps (not included) to hold the workpieces clamps in position so that you can concentrate on proper welding technique. The distance workpieces (if any) b
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SAFETY SETUP BASIC WELDING WELDING TIPS MAINTENANCE DANGER! TO PREVENT DEATH FROM ASPHYXIATION: Do not open gas without proper ventilation. Fix gas leaks immediately. Shielding gas can displace air and cause rapid loss of consciousness and death. Shielding gas without carbon dioxide can be even more hazardous, because asphyxiation can start without feeling shortness of breath. 5. Gas shielded, solid-core wire only: Open gas tank valve and adjust regulator/ flowmeter to flow ra
