Hobart Welding Products OM-227 978B manual 227 951-B

Page 33

227 951-B

OM-227 978 Page 29

Image 33

Contents Processes OM-227 978BDescription 2007−04From Hobart to You Table of Contents − Parts List − MIG Welding Gmaw GuidelinesTypical MIG Process Connections Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut endommager l’ouïeLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Boulevard, Rexdale, Ontario, Canada M9W 1R3 téléphoneSymbols And Definitions − SpecificationsSpecifications − DefinitionsVolt-Ampere Curves Duty Cycle And OverheatingAmperes Output− Installation Installing Welding GunInstalling Work Clamp Changing Polarity Process/Polarity TableInstalling Gas Supply Selecting a Location And Connecting Input Power Electrical Service Guide Installing Wire Spool And Adjusting Hub TensionTools Needed Installing Contact Tip And Nozzle Appropriate setting Connecting Optional Spool GunThreading Welding Wire Controls − OperationWeld Parameter Chart For 230 VAC Model 227 949-B Routine Maintenance − Maintenance &TROUBLESHOOTINGOverload Protection Drive Motor Protection MonthsTurn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip 030/.035 Groove Stamped 023/.025 Groove Stamped .030/.035Cleaning Or Replacing Gun Liner Disconnect gun from unitTo Reassemble Gun Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableOM-227 978 Circuit Diagram − Electrical Diagram227 951-B Typical MIG Process Connections − MIG Welding Gmaw GuidelinesWire Size Amperage Range Typical MIG Process Control SettingsThickness to Amperage a AmperageHolding And Positioning Welding Gun Push Conditions That Affect Weld Bead ShapePerpendicular Drag Short Normal LongPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadCommon MIG Shielding Gases Weld beadTroubleshooting Guide For Semiautomatic Welding Equipment OM-227 978 Main Assembly − Parts ListDia Part Dia Part Mkgs Description Quantity 231 H-14 GunOptional Drive Rolls OptionsConsumables Page Work like a Pro Service SupportAssistance Hobart Welding Products Contact your Distributor for