Harbor Freight Tools 91146 operating instructions Four Welding Features, Time, Interval

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The Four Welding Features:

NOTE: The following four welding features are designed to optimize specific welding processes. (See Figure K.)

1.2-TIME: Typically, the standard welding process used. To operate, turn the Wire Speed Mode Selector (6) to its 2-Time setting. Squeeze the Welding Gun Trigger (18A) to start the Pre-Gas. Then, weld accordingly. Release the Welding Gun Trigger to stop welding. The Post-Gas will continue to deliver the protective gas according to the setting of the Post-Gas Timer (5D).

(See Figures D, F, and K.)

2.4-TIME: The benefit of this process is that there is no need to continuously squeeze the Welding Gun Trigger (18A) during a long welding job. To operate, turn the Wire Speed Mode Selector (6) to its 4-Time setting. Squeeze and quickly release the Welding Gun Trigger to start and stop welding. The Post-Gas will continue to deliver the protective gas according to the setting of the Post-Gas Timer (5D). (See Figures D, F, and K.)

3.SPOT AND PAUSE: This process reduces the number of times the operator must squeeze the Welding Gun Trigger (18A) while spot welding. This process also allows the operator to lower the welding heat for thin material to avoid burn-through. To operate, turn the Wire Speed Mode Selector (6) to its Spot and Pause setting. By squeezing the Welding Gun Trigger (18A), the operator can weld and pause in cycle according to the settings of the Pause Timer (5A) and Spot Timer (5B). (See Figures D, F, and K.)

4.INTERVAL: This process allows the operator to produce the same length and quality of the welding bead more efficiently. To operate, turn the Wire Speed Mode Selector (6) to its Interval setting. By squeezing the Welding Gun Trigger (18A), the operator can weld in one cycle according to the preset welding time. (See Figures D, F, and K.)

4-TIME

SPOT AND PAUSE

WIRE SPEED MODE SELECTOR

(6)

2-TIME

FIGURE K

INTERVAL

 

 

 

 

SKU 91146

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

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Contents MIG Welder 250 AMP Unpacking Product SpecificationsGeneral Safety Rules Save this ManualPersonal Safety Electrical SafetyTool USE and Care Service Grounded Equipment Equipment with Three Prong Plugs GroundingExtension Cords SymbologyCords Longer than 25’ should not be Used with this Welder Specific Safety Rules Page Page SKU For technical questions, please call Figure D Product OverviewFigure E Back Panel ControlsTo Attach a Power Cord Plug Assembly InstructionsTo Attach The Rear Wheels And Front Castor Wheels To Install Welding Wire Spool And Adjust Wire Tension To Attach The Gun Power Cable And Ground Clamp CableWire Spool See Figures F To Install a Gas CylinderWelding Gun Duty Cycle And Overheating Figure JTime Four Welding FeaturesInterval Minutes Welding Figure N Troubleshooting Guide Welding MachineINSPECTION, MAINTENANCE, and Cleaning Welding Machine Troubleshooting Guide Welding GUN & Wire DriveFigure O INSPECTION, MAINTENANCE, and Cleaning Welding GUNFigure P Please Read the Following Carefully Assembly Diagram Welding Machine Parts List Welding MachineDescription Parts List Welding GUN201A Ground Clamp Cable not Shown 202A GAS Hose not Shown Assembly Diagram Welding GUNElectrical Schematic Welding Machine