Hobart Welding Products 230 manual Volt-Ampere Curves, Voltage, Amperage

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3-3. Volt-Ampere Curves

Volt-ampere curves show minimum and maximum voltage and amper- age output capabilities of unit. Curves of other settings fall be- tween curves shown.

Voltage

40.0

35.0

30.0

25.0

20.0

15.0

10.0

5.0

0.0

100

150

200

250

300 Amperage

va_curve1 4/95 − 240 913-A

OM-235 281 Page 12

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Contents OM-235 281A ProcessesDescription File MIG GmawFrom Hobart to You Protect Your InvestmentTable of Contents Warranty Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can burnFumes and Gases can be hazardous ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal or Dirt can injure eyesWelding Wire can injure Fire or Explosion hazardFalling Equipment can injure Moving Parts can injurePrincipal Safety Standards California Proposition 65 WarningsEMF Information About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion LE Bruit peut endommager l’ouïe LES Bouteilles peuvent exploser si elles sont endommagéesRisque D’INCENDIE OU D’EXPLO- Sion LA Chute DE L’APPAREIL peut blesserLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-235 281 Welding Power Source Duty Cycle And Overheating SpecificationsOverheating Volt-Ampere Curves VoltageAmperage 40.0 35.0 30.0 25.0 20.0 15.0 10.0 100 150 200 250 300Installing Welding Gun MIG GUNConnecting To Weld Output Terminals Installing Work ClampSetting Gun Polarity For Wire Type Installing 2 lb Wire Spool And Adjusting Hub TensionChanging Polarity Electrode Negative DcenInstalling 10 lb Wire Spool And Adjusting Hub Tension Installing 33 lb Wire Spool And Adjusting Hub TensionRear Panel Installing Gas SupplyTools Needed 1-1/8, 5/8 Turn off and disconnect input power Positioning Jumper LinksElectrical Service Guide Hz SingleInput Voltage Input Amperes At Rated OutputSelecting a Location And Connecting Input Power Do not move or operate unit where it could tipSpecial installation may be Conductors from unitThreading Welding Wire Turn Off unit, and disconnect input power Controls Wire Speed Control3070 2080 1090 Selecting Wire, Gas and Control Settings Weld ParametersRoutine Maintenance Disconnect powerSupplementary Protectors Before maintainingTurn Off power Replacing Drive Roll And Wire Inlet GuideRemoving Knob From Front Panel Turn Off power before replacing contact tip Aligning Drive Rolls and Wire GuideReplacing Gun Contact Tip Turn Off power before Installing cable hangers Installing Cable HangersCable Hanger Screws Tools Needed Turn off welding power source/wire feeder Welding Troubleshooting Table Wire Drive/Gun Troubleshooting TableWire Drive/Gun Trouble Remedy Welding Trouble Remedy− MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsTypical MIG Process Control Settings Wire Size Amperage RangeAmperage Select VoltageHolding And Positioning Welding Gun Groove WeldsConditions That Affect Weld Bead Shape PushPerpendicular Drag Short Normal LongGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Spatter Troubleshooting − PorosityTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Burn-Through Troubleshooting − Waviness Of Bead Troubleshooting − DistortionBase metal to move DirectionCommon MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentApplication Welding arc not stable Wire slipping in drive rolls Readjust welding parametersWelding power source Drive rolls if necessary− Electrical Diagram Main Assembly 10 − Fig 17 − FigItem Dia Part Description Quantity Mkgs Center Baffle w/Components Center Baffle w/Components -1Item Rear Panel w/Components Front Panel w/Components Wire Drive Assembly 234 Wire Drive AssemblyH200L4−15 Gun 237Accessories Knurl Drive Roll For Hard Shell Cored WiresSupport ServiceAssistance Contact your Distributor for Hobart Welding Products