Harbor Freight Tools 91146 operating instructions Minutes Welding

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.024” to .047” Hard or Flux Cored Wires

60% Duty Cycle at 250 Amperes Using Mixed Gases

6 Minutes Welding

4 Minutes Resting

Relation Between Duty Cycle And Weld Amperes.

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DUTY CYCLE (%)

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIGURE L

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

100

200

300

WELD AMPERES

Relation Between Thickness, Diameter Of Wire, Wire Speed, Voltage, & Current*:

FIGURE M

*Do not change voltage while welding. Wire speed is a starting value only, and can be adjusted while welding. Weld conditions also depend on other variables such as stickout, travel speed, weld angle, cleanliness of metal, etc.

SKU 91146

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

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Contents MIG Welder 250 AMP Product Specifications General Safety RulesSave this Manual UnpackingElectrical Safety Personal SafetyTool USE and Care Service Grounding Grounded Equipment Equipment with Three Prong PlugsCords Longer than 25’ should not be Used with this Welder SymbologyExtension Cords Specific Safety Rules Page Page SKU For technical questions, please call Product Overview Figure DBack Panel Controls Figure ETo Attach The Rear Wheels And Front Castor Wheels Assembly InstructionsTo Attach a Power Cord Plug To Attach The Gun Power Cable And Ground Clamp Cable To Install Welding Wire Spool And Adjust Wire TensionWire Spool To Install a Gas Cylinder See Figures FFigure J Welding Gun Duty Cycle And OverheatingInterval Four Welding FeaturesTime Minutes Welding Troubleshooting Guide Welding Machine Figure NTroubleshooting Guide Welding GUN & Wire Drive INSPECTION, MAINTENANCE, and Cleaning Welding MachineINSPECTION, MAINTENANCE, and Cleaning Welding GUN Figure OFigure P Please Read the Following Carefully Parts List Welding Machine Assembly Diagram Welding MachineParts List Welding GUN DescriptionAssembly Diagram Welding GUN 201A Ground Clamp Cable not Shown 202A GAS Hose not ShownElectrical Schematic Welding Machine