Miller Electric 280 NT manual Maintenance & Troubleshooting

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SECTION 8 − MAINTENANCE & TROUBLESHOOTING		33
8-1.	Routine Maintenance	33
8-2.	Maintenance Label	34
8-3. Servicing Optional Spark Arrestor		35
8-4.	Servicing Air Cleaner	35
8-5. Changing Engine Oil, Oil Filter, And Fuel Filter		36
8-6.	Overload Protection	37
8-7.	Troubleshooting	38
SECTION 9 − PARTS LIST		41
9-1.	Recommended Spare Parts	41
SECTION 10 − ELECTRICAL DIAGRAMS		42
SECTION 11 − GENERATOR POWER GUIDELINES		44
COMPLETE PARTS LIST - www.MillerWelds.com
OPTIONS AND ACCESSORIES
WARRANTY

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Contents OM-4430217 243R ProcessesDescription File Engine DriveFrom Miller to You Table of Contents − Maintenance & Troubleshooting Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can cause severe burnsFumes and Gases can be hazardous Buildup of GAS can injure or killARC Rays can burn eyes and skin Welding can cause fire or explosionEngine Hazards Compressed Air HazardsWelding Wire can cause injury HOT Parts can cause burns and injuryFire or Explosion hazard Falling Unit can cause injuryPrincipal Safety Standards California Proposition 65 WarningsEMF Information Radiation can cause interferenceSignification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUN 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 LE Surchauffement peut endom- mager le moteur électrique DES Organes Mobiles peuvent provoquer des blessuresLES Fils DE Soudage peuvent provoquer des blessures ’EMPLOI Excessif peutProposition californienne 65 Avertissements Principales normes de sécuritéInformation EMF En ce qui concerne les implants médicauxSymbol Definitions − Definitions− Specifications Weld, Power, And Engine SpecificationsDimensions, Weights, and Operating Angles DescriptionDimensions For Units With Optional Running Gear Fuel Consumption While Welding And Using Generator PowerRPM Weld 1800 RPMGenerator Power Curve AC AmperesDuty Cycle TIG Mode Volt-Ampere Curves100% Duty Cycle at 280 Amperes DC/CC CC/DC Stick Mode Stick And MIG Mode Volt-Ampere CurvesCV/DC MIG Mode − Installation Installing Welding GeneratorEngine Prestart Checks OilConnecting Or Replacing The Battery Replacing The Battery+ − Connect negative − cable lastTools Needed 1/2 Installing Exhaust PipeStop engine and let cool Connecting To Weld Output Terminals Stop engineFailure to properly connect Damage your machineSelecting Weld Cable Sizes Remote Receptacle Information− Operating Welding Generator Front Panel ControlsDescription Of Engine Controls See Section Cold Weather Engine OperationInfrequently LoadedControlling Engine Speed And Weld/Generator Output Process Switch Process Switch SettingsWire Position Stick PositionsStick Start Procedure − Scratch Start Technique TIG Lift-ArcStart ProcedureLift-Arc t TIG TIG Electrode WorkpieceRemote Voltage/Amperage Control Min 20 a DCConnect Remote Set Process Stick Welding OnlyHz Generator Power Receptacles And Supplementary Protectors Controlling Engine Speed And Weld/Generator Power Output− Operating Auxiliary Equipment Extension cordPress button to reset. If supple Variable Frequency Hz Generator Power Receptacle RC3Rized Service Agent Current Available in Amperes Receptacle− Maintenance & Troubleshooting Routine Maintenance100 200Maintenance Label Servicing Air Cleaner Servicing Optional Spark ArrestorChanging Engine Oil, Oil Filter, And Fuel Filter Overload Protection Open left side doorWelding TroubleshootingTrouble Remedy Hz Generator Power Receptacles RC1 And RC2 Variable Frequency Generator Power Receptacle RC3Check receptacle wiring and connections Necessary partsEngine starts but stops when Engine EngineCheck engine charging system according to engine manual Od of timeRecommended Spare Parts − Parts ListRecommended Spare Parts − Electrical Diagrams Circuit Diagram For Welding Generator Models232 961-A − Generator Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame Electrically Bond GeneratorGrounding When Supplying Building Systems How Much Power Does Equipment Require?Use ground device as stated in electrical codes Amperes x Volts = WattsApproximate Power Requirements For Industrial Motors Approximate Power Requirements For Farm/Home EquipmentIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsPower Required To Start Motor How Much Power Can Generator Supply?Single-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible SOCKET/WRENCH Selection Table Standard Metric Welding Symbols Page Page Your distributor also gives ServiceSupport To locate a Distributor or Service Agency visit Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s

TABLE OF CONTENTS

SECTION 8 − MAINTENANCE & TROUBLESHOOTING