Miller Electric H-10, MW 140 Plus warranty Electrical Diagram, Circuit Diagram

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SECTION 8 − ELECTRICAL DIAGRAM

230 952-A

Figure 8-1. Circuit Diagram

OM-219 316 Page 27

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Contents 2006−10 OM-219 316CProcesses →DescriptionPage Table of Contents − Parts List Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier DES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer unIncendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Principales normes de sécurité− Definitions − SpecificationsSymbols And Definitions SpecificationsExceeding duty cycle can WarrantyDuty Cycle And Overheating Output Duty Cycle %Amperage Volt-Ampere CurvesCorrect − InstallationInstalling Welding Gun IncorrectChanging Polarity Process/Polarity TableCO 2 gas regulator/flowmeter Installing Gas SupplyDo not move or operate unit where it could tip Selecting a Location And Connecting Input PowerInstalling 8 in 203 mm Wire Spool Installing Wire Spool And Adjusting Hub TensionFlux Nozzle Installing Contact Tip And NozzleHold wire tightly to keep it from unraveling Threading Welding WireControls − OperationWeld Parameter Chart 217 618-A Drive Motor Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload ProtectionTurn Off power before replacing contact tip Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Disconnect gun from unit Cleaning Or Replacing Gun LinerTo Reassemble Gun Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableDoes not run Circuit Diagram − Electrical DiagramTypical MIG Process Connections − MIG Welding Gmaw GuidelinesSelect Voltage Typical MIG Process Control SettingsWire Size Amperage Range Thickness to Amperage aHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Excessive PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadApplication Troubleshooting Guide For Semiautomatic Welding EquipmentWire does not feed Common MIG Shielding GasesWelding arc not stable Wire slipping in drive rolls Main Assembly − Parts ListDia Part Description Quantity Dia Part Description Quantity Mkgs 195 H-10 GunOptions Optional Drive RollsWarranty Owner’s Record