Harbor Freight Tools 91146 operating instructions Specific Safety Rules

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SPECIFIC SAFETY RULES

1.Maintain a safe working environment. Keep the work area well lit. Make sure there is adequate surrounding workspace. Always keep the work area free of obstructions, grease, oil, trash, and other debris. Do not use the Welder in areas near flammable chemicals, dusts, and vapors.

2.Maintain labels and nameplates on the Welder. These carry important information. If unreadable or missing, contact Harbor Freight Tools for a replacement.

3.Prevent eye injury and burns. Wearing and using personal safety clothing and safety devices reduce the risk of injury. Wear ANSI approved safety impact eyeglasses with a welding helmet featuring at least a number 10 shade lens rating. Leather leggings, rubber soled, fire resistant shoes or boots should be worn when using this Welder. Do not wear pants with cuffs, shirts with open pockets, or any clothing that can catch and hold molten metal or sparks. Keep clothing free of grease, oil, solvents, or any other flammable substances. Wear dry, insulating gloves and protective clothing. Wear an approved head covering to protect head and neck. Use aprons, cape, sleeves and shoulder covers, and bibs designed and approved for welding procedures. When welding overhead or in confined spaces, wear flame resistant ear plugs or ear muffs to keep sparks out of ears.

4.Avoid overexposure to fumes and gases. Always keep your head out of the fumes. Do not breathe the fumes. Use enough ventilation or exhaust, or both, to keep fumes and gases from your breathing zone and general area. Where ventilation is questionable, have a qualified technician take an air sampling to determine the need for corrective measures. Use mechanical ventilation to improve air quality. If engineering controls are not feasible, use an approved respirator. Work in a confined area only if it is well ventilated, or while wearing an air-supplied respirator. Follow OSHA guidelines for Permissible Exposure Limits (PEL’s) for various fumes and gases. Follow the American Conference of Governmental Industrial Hygienists recommendations for Threshold Limit Values (TLV’s) for fumes and gases. Have a recognized specialist in Industrial Hygiene or Environmental Services check the operation and air quality and make recommendations for the specific welding situation.

5.Do not perform welding or cutting operations near chlorinated hydrocarbon vapors produced by degreasing or painting. The heat generated by arc rays can react to form phosgene, a highly toxic gas.

6.Irritation of the eyes, nose, and throat are symptoms of inadequate ventilation. Take immediate steps to improve ventilation. Do not continue operations if symptoms persist.

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