Hobart Welding Products 210 MVP Installing Gas Supply, After flow is set, close pressure assembly

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5-6. Installing Gas Supply

.DO NOT use Argon/Mixed gas regulator/flowmeter

with CO2 shielding gas. See Parts List for optional CO2 gas regulator/flowmeter.

4

7

5

6

1

2

3

Argon Gas Or

Mixed Gas

Obtain gas cylinder and chain to running gear, wall, or other stationary support so cylinder cannot fall and break off valve.

1Cap

2Cylinder Valve

Remove cap, stand to side of valve, and open valve slightly. Gas flow blows dust and dirt from valve. Close valve.

3Cylinder

4Regulator/Flowmeter Install so face is vertical.

5Regulator/Flowmeter Gas Hose Connection

6Welding Power Source Gas Hose Connection

Connect supplied gas hose between regulator/flowmeter gas hose connection, and fitting on rear of welding power source.

7 Flow Adjust

Flow rate should be set when gas is flowing through welding power source and welding gun. Open pressure assembly so that wire will not feed. Press gun trigger to start gas flow.

Typical flow rate is 20 cfh (cubic feet per hour). Check wire manufacturer’s recommended flow rate.

After flow is set, close pressure assembly.

Pressure Assembly	Pressure Assembly
Open	Closed

Tools Needed:

5/8, 1-1/8 in.

Ref. 804 654-A / 802 441 / Ref. 804 688-A

OM-249 498 Page 18

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Contents Description OM-249 498BProcesses File MIG GmawFrom Hobart to You Protect Your InvestmentTable of Contents Warranty Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can burnWelding can cause fire or explosion Fumes and Gases can be hazardousARC Rays can burn eyes and skin Flying Metal or Dirt can injure eyesFalling Equipment can injure Welding Wire can injureFire or Explosion hazard Moving Parts can injureEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux LES Pièces Chaudes peuvent provoquer des brûluresLE Soudage peut provoquer un incendie ou une explosion Risque D’INCENDIE OU LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées LA Chute DE L’ÉQUIPEMENT peut provoquer des blessuresLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLes Pièces Mobiles peuvent causer des blessures LE Soudage À L’ARC risque de provoquer des interférencesInformations relatives aux CEM Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-249 498 I1max Symbols And Definitions− Definitions I1effSpecifications For 230 VAC − SpecificationsSpecifications For 115 VAC 20% duty cycle at 90 amps Minutes Welding Duty Cycle And Overheating30% duty cycle at 150 amps Minutes Welding OverheatingVolt-Ampere Curves Voltage AmperageInstalling Nozzle, Contact Tip, And Adapter − InstallationInstalling Welding Gun Installing Work Clamp Process/Polarity Table Turn off welding power sourceChanging Polarity After flow is set, close pressure assembly Installing Gas SupplyTools Needed 1-1/8 Electrical Service Guide Extension Cord Data Use Shortest Cord PossibleMulti−Voltage Plug MVP Connection Do Not modify or rewire receptacle Connection Selecting a Location And Connecting Input PowerDo not move or operate Unit where it could tip Serial Number And Rating Label LocationQualified Persons Make InstallationLocal Codes − have only YellowConnecting 1-Phase Input Power For 115 VAC Input Installing Wire Spool And Adjusting Hub Tension Installing 8 in mm Wire SpoolWire Feed Speed Control Connecting Optional Spool GunExposed O-rings Threading Welding Wire − Operation ControlsWeld Parameter Chart Overload Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Drive Motor Protection030/.035 Groove Knurled Smooth Changing Drive Roll Or Wire Inlet Guide023/.025 StampedRemove nozzle, contact tip, and adapter Blow out gun casing Nozzle Contact Tip Tip Adapter Head TubeStickout Tools Needed Mm, 10 mm Replacing Switch And/Or Head Tube Troubleshooting Table Trouble Remedy− Electrical Diagram Circuit Diagram249 315-A Typical MIG Process Connections Regulator Flowmeter Shielding Gas Wire Feeder Power Source− MIG Welding Gmaw Guidelines Gun Workpiece Work ClampWire Size Amperage Range Typical MIG Process Control SettingsSelect Voltage Holding And Positioning Welding Gun Groove WeldsPerpendicular Drag Conditions That Affect Weld Bead ShapePush Short Normal LongGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Penetration Troubleshooting − Excessive SpatterTroubleshooting − Porosity Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Base metal to move Troubleshooting − Waviness Of BeadTroubleshooting − Distortion DirectionCommon MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentApplication Welding power source Welding arc not stable Wire slipping in drive rollsReadjust welding parameters Drive rolls if necessary57 58 − Parts List49 32 Dia Part Description Quantity Optional H100S4-10 Gun 245Options Optional Drive RollsConsumables Support ServiceAssistance Contact your Distributor for Hobart Welding Products