Manuals / Miller Electric / Power Tools / Welding System

Miller Electric Bobcat 225 manual OM-4434, File Engine Drive

Models: Bobcat 225

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OM-4434	218 653J

2007−11

Processes

Stick (SMAW) Welding

MIG (GMAW) Welding

Flux Cored (FCAW) Welding

Non-Critical TIG (GTAW)

Welding

Description

Engine Driven Welding Generator

Bobcat™ 225

File: Engine Drive

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Miller Electric Bobcat 225 manual OM-4434, File Engine Drive

Contents

File Engine Drive OM-4434From Miller to You Table of Contents 10-2 10-110-3 11-1Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can cause severe burnsBuildup of GAS can injure or kill Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionCompressed Air Hazards Engine HazardsHOT Parts can cause burns and injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information Radiation can cause interference− Consignes DE Sécurité − Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer Indique des instructions spécifiquesLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion ’EXPLOSION DE LA Batterie peu LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent pro voquer des blessures ’AIR Comprimé peut provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieRisque D’INCENDIE OU D’EXPLO- Sion DES Organes Mobiles peuvent provoquer des blessures LE Surchauffement peut endom- mager le moteur électriqueLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peutPrincipales normes de sécurité Proposition californienne 65 AvertissementsInformation EMF Symbol Definitions − SpecificationsWeld, Power, and Engine Specifications − DefinitionsDimensions For Units With Optional Running Gear Dimensions, Weights, and Operating AnglesRobin-PoweredUnit 560 lb 254 kg DimensionsFuel Consumption Kohler-Powered Units Fuel Consumption Robin-Powered UnitsFor CC/DC Mode For CV/DC Mode For CC/AC ModeVolt-Ampere Curves Duty Cycle Generator Power CurveInstalling Welding Generator − InstallationMounting Do not use flexible mounts GroundingOil Check Engine Prestart Checks Robin-Powered UnitsOil Engine Prestart Checks Kohler-Powered Units Connecting Or Replacing the Battery Installing Exhaust PipeConnecting The Battery Connect negative − cable last Replacing The BatteryTools Needed Correct Installation Connecting to Weld Output TerminalsStop engine Work Weld Output Terminal150 ft 200 ft 250 ft Selecting Weld Cable Sizes350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m OM-4434 Place switch in Run position to operate most MIG equipment Engine Control SwitchCoarse Range Switch − Operating the Welding GeneratorInfrequently Cold Weather Engine OperationLoaded Frequently LoadedElectrode Typical Stick Welding Connections And Control SettingsSolid Wire Applications Typical MIG Welding Connections And SettingsBe sure to use the correct size weld cables see Section Fine Control, Weld Process switch Settings Self-Shielded Flux Core Wire ApplicationsSet wire feed speed between 240-270 ipm OM-4434 Typical Settings ForMaterial WorkStandard Receptacles − Operating Auxiliary EquipmentBreaker trips Optional Generator Power ReceptaclesWiring Optional 240 Volt Plug Simultaneous Weld And PowerCurrent Available in Amperes 240 ReceptacleMaintenance Label Robin-Powered Units − Maintenance ROBIN-POWERED UnitsStop engine before maintaining Routine Maintenance Robin-Powered Units100 200Servicing Optional Spark Arrestor Robin-Powered Units Servicing Air Cleaner Robin-Powered UnitsStop engine and let cool Before adding oil Close valve and valve capRunning engine Oil FillIdle Speed Adjustment Adjusting Engine Speed Robin-Powered UnitsTurn idle speed screw for fine adjustments Weld/Power Speed AdjustmentStop engine. Disconnect negative − battery cable Overload Protection Robin-Powered UnitsMaintenance Label Kohler-Powered Units − Maintenance − KOHLER-POWERED UnitsHours Nl Weld Cables ~ Slip Rings Nl Brushes OM-4434 Routine Maintenance Kohler-Powered UnitsServicing Air Cleaner Kohler−Powered Units 2 ID x 7 in Hose Oil Filter Stop engine and let cool Oil Drain ValveFull Before adding oil Running engine Turn idle speed screw for fine ad- justments Adjusting Engine Speed Kohler-Powered UnitsServicing Optional Spark Arrestor Kohler-Powered Units Overload Protection Kohler-Powered UnitsIf a fuse opens, it usually indi Welding Troubleshooting − TroubleshootingGenerator Power Troubleshooting Trouble RemedyEngine Troubleshooting Control switch S2, and throttle solenoid TS1 − Parts ListRecommended Spare Parts Recommended Spare PartsCircuit Diagram For Welding Generator − Electrical Diagrams228 461-A Selecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame How Much Power Does Equipment Require? Grounding When Supplying Building SystemsApproximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentHow Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Cord Lengths for 120 Volt Loads Selecting Extension Cord Use Shortest Cord PossibleCurrent Load Watts Amperes Cord Lengths for 240 Volt Loads− Stick Welding Smaw Guidelines Stick Welding ProcedureStriking an Arc − Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc − Tapping Technique Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder 10-30 9090 End View of Work AngleElectrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint 16 in 30 1.6 mm Tack WeldsTroubleshooting − Excessive Spatter Troubleshooting − PorosityWeld Test Possible Causes Corrective ActionsTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Excessive Penetration Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Holding And Positioning Welding Gun − MIG Welding Gmaw GuidelinesShort Normal Long Push Perpendicular DragSlow Normal Fast Gun Movement During Welding 15-8 Troubleshooting − Porosity 15-7 Troubleshooting − Excessive Spatter15-9 Troubleshooting − Excessive Penetration Fusion between weld metal Lack Of Penetration − shallowImproper joint preparation Base metal to move Unsteady hand Support hand on solid surface or use two handsApplication Common MIG Shielding GasesFillet Page Your distributor also gives ServiceSupport Miller Electric Mfg. Co To locate a Distributor or Service Agency visitFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s