Manuals / Miller Electric / Power Tools / Welding System

Miller Electric 280 NT Generator Power Curve, Weld Position Flat, Horizontal, Vertical, Overhead

Models: 280 NT

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

4-6. Generator Power Curve

The ac generator power curve shows the generator power avail- able in amperes at the receptacles.

	300
	250
AC VOLTS	200
	150
	100
	100
	50
	0
	0	5	10	15	20	25	30
				AC AMPERES

222 553

Notes

WELD POSITION: FLAT		HORIZONTAL	VERTICAL		OVERHEAD
WELD JOINT	BUTT	BUTT			BUTT
TYPES	1G	BUTT	BUTT		4G
TYPES	1G	2G	BUTT		4G
		2G	3G
			T−JOINT	T−JOINT
GROOVE			2F	T−JOINT
GROOVE			2F	4F
FILLET	T−JOINT			T−JOINT
FILLET	T−JOINT			3F
Ref. AWS/ANSI D1.1	1F			3F	Ref. 804 248-A
Ref. AWS/ANSI D1.1	1F				Ref. 804 248-A

OM-4430 Page 15

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Miller Electric 280 NT manual Generator Power Curve, Weld Position Flat, Horizontal, Vertical, Overhead, Weld Joint, Types

Contents

Description Miller LegendR302OM-4430217 243R ProcessesFrom Miller to You SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING TABLE OF CONTENTSSECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION WARRANTY TABLE OF CONTENTSSECTION 11 − GENERATOR POWER GUIDELINES OPTIONS AND ACCESSORIESNOTICE − Indicates statements not related to personal injury 1-1. Symbol Usage1-2. Arc Welding Hazards SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USINGWELDING can cause fire or explosion FUMES AND GASES can be hazardousBUILDUP OF GAS can injure or kill ARC RAYS can burn eyes and skinTRAPPED AIR PRESSURE AND WHIPPING HOSES can cause injury 1-3. Engine Hazards1-4. Compressed Air Hazards BATTERY ACID can BURN SKIN and EYES1-5. Additional Symbols For Installation, Operation, And Maintenance For Gasoline Engines 1-7. Principal Safety Standards1-6. California Proposition 65 Warnings 1-8. EMF InformationIndique des instructions spécifiques 2-1. Signification des symbolesSECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION 2-2. Dangers relatifs au soudage à l’arcDES PIÈCES CHAUDES peuvent provoquer des brûlures graves 2-3. Dangers existant en relation avec le moteur 2-4. Dangers liés à l’air comprimé D Affûter l’électrode au tungstène uniquement à la meuleuse dotée de protecteurs. Cette manœuv- re est à exécuter dans un endroit sûr lorsque l’on porte l’équipement homologué de protection du visage, des mains et du corps Pour les moteurs à essence 2-6. Proposition californienne 65 Avertissements2-7. Principales normes de sécurité 2-8. Information EMFSECTION 3 − DEFINITIONS 3-1. Symbol DefinitionsWork like a Pro 4-1. Description SECTION 4 − SPECIFICATIONS4-2. Weld, Power, And Engine Specifications 4-3. Dimensions, Weights, and Operating Angles4-5. Fuel Consumption While Welding And Using Generator Power 4-4. Dimensions For Units With Optional Running GearVERTICAL 4-6. Generator Power CurveWELD POSITION FLAT HORIZONTAL4-7. Duty Cycle 4-8. TIG Mode Volt-Ampere CurvesContinuous Welding A. CC/DC Stick Mode 4-9. Stick And MIG Mode Volt-Ampere CurvesB. CV/DC MIG Mode Movement Do not lift unit from end SECTION 5 − INSTALLATION5-1. Installing Welding Generator vehicle frame. Always connect a ground wireStore battery in warm area 5-2. Engine Prestart ChecksFollow run-in procedure in engine Keep battery in good conditionConnect negative − cable last 5-3. Connecting Or Replacing The BatteryReplacing The Battery Remove end panel to replace batteryWork like a Pro 5-4. Installing Exhaust PipeStop engine and let cool damage your machine 5-5. Connecting To Weld Output TerminalsStop engine Failure to properly connect5-7. Remote Receptacle Information 5-6. Selecting Weld Cable Sizes6-1. Front Panel Controls SECTION 6 − OPERATING WELDING GENERATORFor maximum weld output above Generator power is available at recep 6-2. Description Of Engine Controls See Section6-3. Cold Weather Engine Operation Engine Control SwitchEither Run/Idle position 6-4. Controlling Engine Speed And Weld/Generator OutputGenerator Power Output Engine ControlsStick Positions 6-5. Process SwitchWire Position The unit will not return to idle speedApplication 6-6. Stick Start Procedure − Scratch Start Technique6-7. TIG Lift-Arc Start Procedure Lift-Arc t TIGMax 160 A DC 6-8. Remote Voltage/Amperage Controlweld load and generator power 7-1. 60 Hz Generator Power Receptacles And Supplementary ProtectorsSECTION 7 − OPERATING AUXILIARY EQUIPMENT Generator power is available atWork like a Pro 7-2. Variable Frequency Hz Generator Power Receptacle RC3Press button to reset. If supple rized Service AgentReceptacle Each 120 V DuplexReceptacle Current Available in Amperesinformation. Service engine more often if SECTION 8 − MAINTENANCE & TROUBLESHOOTING8-1. Routine Maintenance for important start-up, service, and storageOM-4430 Page 8-2. Maintenance LabelStop engine 8-4. Servicing Air Cleaner8-3. Servicing Optional Spark Arrestor Stop engine and let coolStop engine and let cool 8-5. Changing Engine Oil, Oil Filter, And Fuel FilterStop engine, tighten connec- tions as necessary, and wipe up fuel Stop engine 8-6. Overload Protection803 773−A / Ref. 216 172-D Remedy 8-7. TroubleshootingA. Welding TroubleRemedy TroubleRemedy TroubleTrouble D. EngineRemedy 9-1. Recommended Spare Parts SECTION 9 − PARTS LISTFigure 10-1. Circuit Diagram For Welding Generator Models SECTION 10 − ELECTRICAL DIAGRAMS232 961-A OM-4430 PageBe sure equipment has double insulated symbol and/or word- ing on it SECTION 11 − GENERATOR POWER GUIDELINES11-1. Selecting Equipment 11-2. Grounding Generator To Truck Or Trailer FrameAmperes x Volts = Watts 11-3. Grounding When Supplying Building Systems11-4. How Much Power Does Equipment Require? Use ground device as stated in electrical codesRating 11-5. Approximate Power Requirements For Industrial Motors11-6. Approximate Power Requirements For Farm/Home Equipment Industrial MotorsStarting Watts 11-7. Approximate Power Requirements For Contractor EquipmentContractor RatingMotor Start 11-8. Power Required To Start Motor11-9. How Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsCustomer-supplied equipment 11-10. Typical Connections To Supply Standby PowerCurrent 11-11. Selecting Extension Cord Use Shortest Cord PossibleCord Lengths for 120 Volt Loads Maximum Allowable Cord Length in ft m for Conductor Size AWGMETRIC SOCKET/WRENCH SELECTION TABLESOCKET/WRENCH SELECTION TABLE U.S. STANDARDRef. AWS/ANSI A2.4 Welding SymbolsPage Page Support Warranty Questions?Service Call 1-800-4-A-MILLER for your local Miller distributorPlease complete and retain with your personal records For ServiceOwner’s Record Contact a DISTRIBUTOR or SERVICE AGENCY near you

4-6. Generator Power Curve

WELD POSITION: FLAT

HORIZONTAL

VERTICAL

OVERHEAD

WELD JOINT

TYPES