Hobart Welding Products 230 manual Installing Gas Supply, Rear Panel, Tools Needed 1-1/8, 5/8

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3-11. Installing Gas Supply

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

.DO NOT use Argon/Mixed gas regulator/flowmeter

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

4a

57

4b

5 7

6

1

2

3a

Argon Gas Or Mixed Gas

2

3b

CO2 Gas

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

a Argon Or Mixed Gas Cylinder

b CO2 Cylinder

4 Regulator/Flowmeter

aArgon Or Mixed Gas Regulator/Flowmeter

bCO2 Regulator/Flowmeter Install so face is vertical.

5Regulator/Flowmeter Gas Hose Connection

6Welding Power Source Gas Hose Connection For MIG Gun

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

7 Gas Flow Adjustment Control

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

Rear Panel

Tools Needed: 1-1/8, 5/8 in

242 687-A

OM-235 281 Page 17

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Contents Processes OM-235 281ADescription File MIG GmawProtect Your Investment From Hobart to YouTable of Contents Warranty Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can burnARC 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 injureFalling Equipment can injure Moving Parts can injureCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical DevicesUNE Décharge Électrique peut entraîner la mort Symboles utilisésDES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE 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 blesserProposition californienne 65 Avertissements LES Fils DE Soudage peuvent provoquer des blessuresLE Soudage À L’ARC risque de provoquer des interférences Principales normes de sécurité Information EMFEn ce qui concerne les implants médicaux OM-235 281 Specifications Welding Power Source Duty Cycle And OverheatingOverheating Voltage Volt-Ampere CurvesAmperage 40.0 35.0 30.0 25.0 20.0 15.0 10.0 100 150 200 250 300MIG GUN Installing Welding GunInstalling Work Clamp Connecting To Weld Output TerminalsInstalling 2 lb Wire Spool And Adjusting Hub Tension Setting Gun Polarity For Wire TypeChanging Polarity Electrode Negative DcenInstalling 33 lb Wire Spool And Adjusting Hub Tension Installing 10 lb Wire Spool And Adjusting Hub TensionInstalling Gas Supply Rear PanelTools Needed 1-1/8, 5/8 Positioning Jumper Links Turn off and disconnect input powerHz Single Electrical Service GuideInput Voltage Input Amperes At Rated OutputDo not move or operate unit where it could tip Selecting a Location And Connecting Input PowerSpecial installation may be Conductors from unitThreading Welding Wire Turn Off unit, and disconnect input power Wire Speed Control Controls3070 2080 1090 Weld Parameters Selecting Wire, Gas and Control SettingsDisconnect power Routine MaintenanceSupplementary Protectors Before maintainingReplacing Drive Roll And Wire Inlet Guide Turn Off powerRemoving Knob From Front Panel Aligning Drive Rolls and Wire Guide Turn Off power before replacing contact tipReplacing Gun Contact Tip Installing Cable Hangers Turn Off power before Installing cable hangersCable Hanger Screws Tools Needed Turn off welding power source/wire feeder Wire Drive/Gun Troubleshooting Table Welding Troubleshooting TableWire Drive/Gun Trouble Remedy Welding Trouble RemedyTypical MIG Process Connections − MIG Welding Gmaw GuidelinesWire Size Amperage Range Typical MIG Process Control SettingsAmperage Select VoltageGroove Welds Holding And Positioning Welding GunPush 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 BeadBase metal to move DirectionTroubleshooting Guide For Semiautomatic Welding Equipment Common MIG Shielding GasesApplication Readjust welding parameters Welding arc not stable Wire slipping in drive rollsWelding power source Drive rolls if necessary− Electrical Diagram 10 − Fig 17 − Fig Main AssemblyItem Dia Part Description Quantity Mkgs Center Baffle w/Components Center Baffle w/Components -1Item Rear Panel w/Components Front Panel w/Components 234 Wire Drive Assembly Wire Drive Assembly237 H200L4−15 GunKnurl Drive Roll For Hard Shell Cored Wires AccessoriesService SupportAssistance Hobart Welding Products Contact your Distributor for