Table of Contents | Miller Electric 280 NT specs

TABLE OF CONTENTS

SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING		1
1-1.	Symbol Usage	1
1-2.	Arc Welding Hazards	1
1-3.	Engine Hazards	3
1-4.	Compressed Air Hazards	3
1-5. Additional Symbols For Installation, Operation, And Maintenance		4
1-6. California Proposition 65 Warnings		5
1-7.	Principal Safety Standards	5
1-8.	EMF Information	5

SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION		6
2-1.	Signification des symboles	6
2-2. Dangers relatifs au soudage à l’arc		6
2-3. Dangers existant en relation avec le moteur		8
2-4. Dangers liés à l’air comprimé		9
2-5. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance		9
2-6.	Proposition californienne 65 Avertissements	11
2-7.	Principales normes de sécurité	11
2-8.	Information EMF	11

SECTION 3 − DEFINITIONS		12
3-1.	Symbol Definitions	12
SECTION 4 − SPECIFICATIONS		13
4-1.	Description	13
4-2. Weld, Power, And Engine Specifications		13
4-3. Dimensions, Weights, and Operating Angles		13
4-4. Dimensions For Units With Optional Running Gear		14
4-5. Fuel Consumption While Welding And Using Generator Power		14
4-6.	Generator Power Curve	15
4-7.	Duty Cycle	16
4-8. TIG Mode Volt-Ampere Curves		16
4-9. Stick And MIG Mode Volt-Ampere Curves		17
SECTION 5 − INSTALLATION		18
5-1.	Installing Welding Generator	18
5-2.	Engine Prestart Checks	19
5-3. Connecting Or Replacing The Battery		20
5-4.	Installing Exhaust Pipe	21
5-5. Connecting To Weld Output Terminals		22
5-6. Selecting Weld Cable Sizes*		23
5-7.	Remote Receptacle Information	23
SECTION 6 − OPERATING WELDING GENERATOR		24
6-1.	Front Panel Controls	24
6-2. Description Of Engine Controls (See Section 6-1)		25
6-3. Cold Weather Engine Operation		25
6-4. Controlling Engine Speed And Weld/Generator Output		26
6-5.	Process Switch	27
6-6. Stick Start Procedure − Scratch Start Technique		28
6-7. TIG Lift-ArctStart Procedure		28
6-8.	Remote Voltage/Amperage Control	29
SECTION 7 − OPERATING AUXILIARY EQUIPMENT		30
7-1. 60 Hz Generator Power Receptacles And Supplementary Protectors		30
7-2. Variable Frequency (Hz) Generator Power Receptacle RC3		31
7-3.	Wiring Instructions For Optional 240 Volt, Single-Phase Plug (NEMA 14-50P)	32

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Miller Electric 280 NT manual Table of Contents

Contents

File Engine Drive OM-4430217 243RProcesses Description From Miller to You Table of Contents − Maintenance & Troubleshooting HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can kill Welding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skin Compressed Air Hazards Engine Hazards Falling Unit can cause injury Welding Wire can cause injuryHOT Parts can cause burns and injury Fire or Explosion hazard Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF Information Indique des instructions spécifiques Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuer DES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in cendie ou une explosion LE Bruit peut affecter l’ouïe ’EXPLOSION DE LA Batterie peuDES Organes Mobiles peuvent pro voquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessuresRisque D’INCENDIE OU D’EXPLO- Sion ’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures LES Fils DE Soudage peuvent provoquer des blessures En ce qui concerne les implants médicaux Proposition californienne 65 AvertissementsPrincipales normes de sécurité Information EMF − Definitions Symbol Definitions Description − SpecificationsWeld, Power, And Engine Specifications Dimensions, Weights, and Operating Angles 1800 RPM Dimensions For Units With Optional Running GearFuel Consumption While Welding And Using Generator Power RPM Weld AC Amperes Generator Power Curve TIG Mode Volt-Ampere Curves Duty Cycle100% Duty Cycle at 280 Amperes DC/CC Stick And MIG Mode Volt-Ampere Curves CC/DC Stick ModeCV/DC MIG Mode Installing Welding Generator − Installation Oil Engine Prestart Checks Connect negative − cable last Connecting Or Replacing The BatteryReplacing The Battery + − Installing Exhaust Pipe Tools Needed 1/2Stop engine and let cool Damage your machine Connecting To Weld Output TerminalsStop engine Failure to properly connect Remote Receptacle Information Selecting Weld Cable Sizes Front Panel Controls − Operating Welding Generator Loaded Description Of Engine Controls See SectionCold Weather Engine Operation Infrequently Controlling Engine Speed And Weld/Generator Output Stick Positions Process SwitchProcess Switch Settings Wire Position TIG Electrode Workpiece Stick Start Procedure − Scratch Start TechniqueTIG Lift-ArcStart Procedure Lift-Arc t TIG Stick Welding Only Remote Voltage/Amperage ControlMin 20 a DC Connect Remote Set Process Extension cord Hz Generator Power Receptacles And Supplementary ProtectorsControlling Engine Speed And Weld/Generator Power Output − Operating Auxiliary Equipment Variable Frequency Hz Generator Power Receptacle RC3 Press button to reset. If suppleRized Service Agent Receptacle Current Available in Amperes 200 − Maintenance & TroubleshootingRoutine Maintenance 100 Maintenance Label Servicing Optional Spark Arrestor Servicing Air Cleaner Changing Engine Oil, Oil Filter, And Fuel Filter Open left side door Overload Protection Troubleshooting WeldingTrouble Remedy Necessary parts Hz Generator Power Receptacles RC1 And RC2Variable Frequency Generator Power Receptacle RC3 Check receptacle wiring and connections Od of time Engine starts but stops when EngineEngine Check engine charging system according to engine manual − Parts List Recommended Spare PartsRecommended Spare Parts Circuit Diagram For Welding Generator Models − Electrical Diagrams 232 961-A Electrically Bond Generator − Generator Power GuidelinesSelecting Equipment Grounding Generator To Truck Or Trailer Frame Amperes x Volts = Watts Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Use ground device as stated in electrical codes Farm/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 Watts Contractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor Equipment KVA/HP x HP x 1000 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting Requirements Typical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible SOCKET/WRENCH Selection Table Standard Metric Welding Symbols Page Page Service Your distributor also givesSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact