Harbor Freight Tools 55167 operating instructions Operation, Before You Start Welding

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6.Connect the new Switch (1c); polarity does not matter. When reinstalling, make sure that the new Switch fits securely in place.

7.Reassemble, reversing the steps on the previous page.

8.Put on appropriate safety equipment, as explained in the safety section of this manual. After the unit is fully assembled, plug the Welder back in and turn it back ON.

Carefully point the torch away from yourself and conductive materials, and check that the new switch functions properly.

9.Shut the unit off and unplug it before storing.

Operation

Before You Start Welding

Good welding takes a degree of skill and experience. You should practice a few sample welds on scrap before you start welding your first project. Additional practice periods are recommended whenever you weld a different thickness of material or weld a different type of connection.

Duty Cycle (Duration of Use)

Avoid damage to the Welder by not leaving it on 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 safely produce a particular welding current. For example, this Welder with a 10% duty cycle at 80 amps must be allowed to rest for at least 9 minutes after every minute of continuous weld at 80 amps. Failure to carefully observe duty cycle limitations can easily over stress a welder’s power generation system contributing to premature welder failure. This welder has an internal thermal protection system to assist with preventing this sort of over stress. When the unit overheats, it automatically shuts down, then automatically returns to service when it cools down. When it returns to service, follow a more conservative duty cycle routine to help prevent excess wear to the welder.

SKU 55167

For technical questions, please call 1-800-444-3353;

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Troubleshooting section at end of manual.

 

 

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Contents Welder For technical questions and replacement parts, please callContents Work Area SpecificationsGeneral Safety Rules Save This ManualElectrical Safety Personal SafetyTool Use and Care Specific Safety Rules ServicePage Welding Produces toxic fumes and gasses Inhalation HazardPlug and Outlet Grounded Tools Tools With Three Prong PlugsSee Figure C Double Insulated Tools Tools With Two Prong PlugsProng Plug and Outlet Outlets for 2-Prong Plug See Figure C, nextFigure C Unpacking AssemblyInstalling the Wire Reel Wire Feed Roller Bracket Screws 45 Washers Trigger Switch Replacement Before You Start Welding OperationDo not Switch the Current While Welding Holding The Torch HartC EttingsS eldW Material Thickness Steel Weld Diagnosis Weld Penetration Weld Not Adhering ProperlyBend at joint Porosity Crooked/wavy bead Excessive SpatterInaccurate welding Maintenance Wiring Schematic Parts Lists and DiagramsPlease Read the Following Carefully Assembly Diagram Page Welding arc not stable TroubleshootingWire feed motor runs butwire does not feed properly Wire creates a bird’s nest During operationInternal fuse blown Power switch 7a does not light when switched onTroubleshooting Faulty or improperly connected Trigger Switch 1cWeak Arc strength Wire Feeds, but arc does not ignite