Hobart Welding Products OM-240 438E manual Start Your Professional Welding Career Now

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. A complete Parts List is available at www.HobartWelders.com

Notes

Start Your Professional Welding Career Now!

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OM-240 438 Page 27

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Contents Processes OM-240 438EDescription Protect Your Investment From Hobart to YouTable of Contents 10-1 HOT Parts can burn Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skinEngine Hazards Hydraulic Fluid can injure or kill Hydraulic HazardsCompressed Air Hazards Hydraulic Equipment can injure or killFalling Equipment can injure Compressed AIR can injure or killFire or Explosion hazard Overheating can damage motorsCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Implanted Medical Devices Indique des instructions spécifiques Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuerLE Bruit peut affecter l’ouïe LES Pièces Chaudes peuvent provoquer des brûluresLES Fumées ET LES GAZ peu- vent être dangereux LE Soudage peut provoquer un incendie ou une explosionLes Pièces Mobiles peuvent causer des blessures ’EXPLOSION DE LA Batterie peut provoquer des blessuresLA Chaleur DU Moteur peut pro- voquer un incendie LES Étincelles À L’ÉCHAPPEMENT peuvent provoquer un incendieLire LES Instructions LES Étincelles Projetées peuvent provoquer des blessures Risque D’INCENDIE OULA Chute DE L’ÉQUIPEMENT peut provoquer des blessures LE Surchauffement peut endommager le moteur électriqueUNE Remorque QUI Bascule peut provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Informations relatives aux CEM Principales normes de sécuritéEn ce qui concerne les implants médicaux − Definitions − SpecificationsSymbol Definitions Weld, Power, and Engine SpecificationsWeight 562 lb 254 kg Dimensions, Weights, And Operating AnglesDuty Cycle Dimensions For Units With Optional Running GearDimensions Duty CycleFor CC/DC Mode For CC/AC ModeVolt-Ampere Curves Fuel Consumption Generator Power CurveMovement Location / Airflow Clearance − InstallationInstalling Welding Generator Serial Number And Rating Label LocationGND/PE Grounding Generator To Truck Or Trailer FrameOil Engine Prestart Checks+ − Installing Exhaust PipeConnecting Or Replacing the Battery Connect negative − battery cable lastStop engine Failure to properly connect Connecting To Weld Output TerminalsTools Needed 3/4 100 150 200 250 Selecting Weld Cable Sizes150 ft 200 ft 250 ft 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 mStart Your Professional Welding Career Now Fine Control Engine Control Switch− Operating the Welding Generator Front Panel ControlsFrequently Loaded Cold Weather Engine OperationInfrequently LoadedStop engine Typical Stick Welding Connections And Control SettingsElectrode At least once a month, run engine at − Operating Auxiliary EquipmentStandard Receptacles Gfci Receptacle OptionReceptacle Simultaneous Weld And PowerWiring Optional 240 Volt Plug Current Available in Amperes 240Maintenance Label − Maintenance500 Routine Maintenance100 200Servicing Air Cleaner Before Adding Oil Running engine Changing Engine Oil, Oil Filter, and Fuel FilterStop engine and let cool Close valve and valve capTurn idle speed screw for fine ad- justments Adjusting Engine SpeedIdle Speed Adjustment Weld/Power Speed AdjustmentFuse F1 See Section Stop engine. Disconnect negative − battery cableOverload Protection Servicing Optional Spark ArrestorTrouble Remedy − TroubleshootingWelding Troubleshooting Generator Power TroubleshootingCheck fuel level Engine TroubleshootingCheck receptacle wiring and connections Ers SR2 and SR3Recommended Spare Parts − Parts ListControl switch S2, and throttle solenoid TS1 Recommended Spare PartsCircuit Diagram For Welding Generator − Electrical Diagrams240 424-B Selecting Equipment − Generator Power GuidelinesElectrical codes Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Use ground device as statedFarm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentKVA/HP x HP x 1000 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Electrode touches work Stick Welding Procedure− Stick Welding Smaw Guidelines Weld current starts whenTapping Technique Electrode and Amperage Selection ChartStriking an Arc Scratch TechniqueEnd View Of Work Angle Side View Of Electrode Angle 10-30 Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode HolderNormal Conditions That Affect Weld Bead ShapeElectrode Movement During Welding Electrode AngleOr Less Groove Butt JointsLap Joint Tee JointWeld bead TroubleshootingWeld Test Possible Causes Corrective ActionsDirection Lack of Penetration Good PenetrationGood Penetration Excessive Penetration Metal remainsSOCKET/WRENCH Selection Table Standard Metric Support ServiceAssistance Hobart Welding Products Contact your Distributor for