Miller Electric MW 140 Plus, H-10 MIG Welding Gmaw Guidelines, Typical MIG Process Connections

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SECTION 9 − MIG WELDING (GMAW) GUIDELINES

9-1. Typical MIG Process Connections

Y Weld current can damage electronic parts in vehicles. Disconnect both battery cables before welding on a vehicle. Place work clamp as close to the weld as possible.

Regulator/

Flowmeter

Wire Feeder/

Power Source

Shielding Gas	Gas Hose

Gun

Work Clamp Workpiece

light mig 5/97 / Ref. 803 715-A

OM-219 316 Page 28

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Contents OM-219 316C Processes→Description 2006−10Page Table of Contents − Parts List Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux LE Soudage peut provoquer un Incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaques− Specifications Symbols And DefinitionsSpecifications − DefinitionsWarranty Duty Cycle And OverheatingOutput Duty Cycle % Exceeding duty cycle canVolt-Ampere Curves Amperage− Installation Installing Welding GunIncorrect CorrectProcess/Polarity Table Changing PolarityInstalling Gas Supply CO 2 gas regulator/flowmeterSelecting a Location And Connecting Input Power Do not move or operate unit where it could tipInstalling Wire Spool And Adjusting Hub Tension Installing 8 in 203 mm Wire SpoolInstalling Contact Tip And Nozzle Flux NozzleThreading Welding Wire Hold wire tightly to keep it from unraveling− Operation ControlsWeld Parameter Chart 217 618-A − Maintenance &TROUBLESHOOTING Routine MaintenanceOverload Protection Drive Motor ProtectionReplacing Gun Contact Tip Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Does not run Troubleshooting TableTrouble Remedy − Electrical Diagram Circuit Diagram− MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsTypical MIG Process Control Settings Wire Size Amperage RangeThickness to Amperage a Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Troubleshooting − Excessive Spatter Troubleshooting − PorosityTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Waviness Of Bead Troubleshooting − DistortionTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feedCommon MIG Shielding Gases ApplicationWelding arc not stable Wire slipping in drive rolls − Parts List Main AssemblyDia Part Description Quantity Dia Part Description Quantity Mkgs H-10 Gun 195Optional Drive Rolls OptionsWarranty Owner’s Record