Hobart Welding Products manual Processes, Description, OM-925217 694E 2008−10

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OM-925217 694E

2008−10

Processes

MIG (GMAW) Welding

Flux Cored (FCAW) Welding

Description

Arc Welding Power Source And

Wire Feeder

HandlerR140

And H-10 Gun

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Contents Processes Arc Welding Power Source Wire FeederDescription OM-925217 694E 2008−10Protect Your Investment From Hobart to YouTable of Contents − ACCESSORIES/CONSUMABLES Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can cause severe burnsARC Rays can burn eyes and skin Fumes and Gases can be hazardousWelding can cause fire or explosion Flying Metal or Dirt can injure eyesFire or Explosion hazard Welding Wire can cause injuryFalling Unit can cause injury Moving Parts can cause injuryCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical DevicesUNE Décharge Électrique peut entraîner la mort Symboles utilisésIndique des instructions spécifiques LES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion LES Bouteilles peuvent exploser si elles sont endommagées LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU D’EXPLO- Sion LA Chute DE L’APPAREIL peut blesserLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-925 Symbols And Definitions − SpecificationsSpecifications − DefinitionsDuty Cycle And Overheating WarrantyOutput Duty Cycle % Can damage unit or gun and voidVoltage Volt-Ampere Curves15.0 10.0 100 110 120 130 140 150 160Installing Welding Gun − InstallationInstalling Work Clamp Be sure that gun end is tight against drive assemblyChanging Polarity Process/Polarity TableFeedhead Pressure Assembly Open Installing Gas SupplyFeedhead Pressure Assembly Closed Do not use Argon/Mixed gas regulator/flowmeterDo not move or operate unit Where it could tip Selecting a Location And Connecting Input PowerAlign locking hole in spool with locking pin on spool hub Installing Wire Spool And Adjusting Hub TensionRetaining ring used with 8 in 203 mm spool only Turn off welding power source Installing Contact Tip And NozzleUse with solid or flux cored wire Hold wire tightly to keep it from unraveling Threading Welding WireLay gun cable out straight Pressure Indicator Scale With a setting of 2 or 3 on the scaleTighten Desired drive roll pressure. Start− Operation Source or -2. Do not switch under loadControls Material Thickness Reference Chart Weld Parameter Chart 217 618-A Routine Maintenance − Maintenance & TroubleshootingOverload Protection Drive Motor ProtectionTurn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Stamped Stamped .030/.035Disconnect gun from unit Cleaning Or Replacing Gun LinerTo Reassemble Gun Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableCircuit Diagram − Electrical Diagram− MIG Welding Gmaw Guidelines Wire Feeder Power Source Shielding GasTypical MIG Process Connections Regulator FlowmeterWire Size Amperage Range Typical MIG Process Control Settings001 in = 1 ampere 125 in = 125 aGroove Welds Holding And Positioning Welding GunPush Perpendicular Drag Conditions That Affect Weld Bead ShapeShort Normal Long Slow Normal FastGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadBase metal to move DirectionCommon MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentApplication Readjust welding parameters Welding arc not stable Wire slipping in drive rollsWelding power source Drive rolls if necessaryAccessories − ACCESSORIES/CONSUMABLESReplacement Drive Rolls ConsumablesSupport ServiceAssistance Hobart Welding Products Contact your Distributor for