Hobart Welding Products OM-949 manual Volt-Ampere Curves, Selecting a Location, Volt Model, Amps

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3-3. Volt-Ampere Curves

50 Volts 40

20Min

25 50

The volt-ampere curves show the minimum and maximum voltage and amperage output capabilities. Curves of other settings fall be- tween the curves shown.

230 Volt Model

Max

Rated Load

75 100 125 150 175 200 225

Amps

215 257-A

3-4. Selecting A Location

1 Rating Label

Locate unit near correct input power.

YSpecial installation may be required where gasoline or volatile liquids are present − see NEC Article 511 or CEC Section 20.

18 in (457 mm) for airflow

804 294-A

OM-949 Page 10

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Contents Processes DescriptionFrom Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion 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 DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesSpecifications Duty Cycle ChartsVolt Model Volt-Ampere CurvesSelecting a Location AmpsInstalling Work Cable onto Work Clamp Installing Electrode Holder And Work ClampInstalling Electrode Cable and Barrel onto Electrode Holder Removing Barrel From Elec- trode Holder350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Weld Output Cables150 ft 200 ft 250 ft Put terminalsElectrical Service Guide Connecting Input PowerControls Months Routine MaintenanceLubricating Shunt Block And Anti-Noise Adjustment Reinstalling Amperage Adjustment Indicator Wrapper Remove wrapper from unit Crank Handle Shunt ShaftTroubleshooting Trouble Remedy− Electrical Diagrams − Welding Methods & Troubleshooting Welding Methods Shielded Metal Arc Welding Smaw ProcedureElectrode And Amperage Selection Chart 6013 7014Striking An Arc Positioning The Electrode HolderElectrode Angle Weld Bead CharacteristicsConditions That Affect Weld Bead Shape Arc LengthElectrode Movement During Welding Butt JointsTee Joints Welding TroubleshootingLap Joints PorosityLack Of Penetration Excessive SpatterIncomplete Fusion Waviness Of Bead Excessive PenetrationBurn-Through DistortionStart Your Professional Welding Career Now − Parts List Dia Part Description Quantity Page Assistance ServiceSupport Contact your Distributor for Hobart Welding Products