Miller Electric 280 NT manual Description, Weld, Power, And Engine Specifications

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

SECTION 4 − SPECIFICATIONS

4-1. Description

This multiprocess engine-driven welder and AC generator provides low speed generator AC power and DC weld out- put for quiet, fuel-efficient operation. At 1800 rpm, this unit produces 5 kW/kVA 60 Hz 120/240 Volt AC generator power. Achieve high quality Stick and TIG welding results at either 3000 or 3600 rpm. A special variable frequency (60-120 Hz) receptacle provides 2.4 kW/kVA 120 Volt AC generator power continuously.

4-2. Weld, Power, And Engine Specifications

Welding

Rated

Maximum

Amperage

Voltage

Generator

Fuel

 

Welding

Open-Circuit

Range In

Range In

Engine

Mode

Power Rating

Capacity

Output

Voltage

CC Mode

CV Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.5 kVA/kW (Peak)

 

 

 

 

 

 

 

5 kVA/kW (Continuous)

 

 

CC/DC

280 A, 25 V, 100%

50

20 − 300 A

 

42/21 A,

 

Kohler CH-23

Duty Cycle

 

120/240 V AC,

 

 

 

 

 

 

60 Hz,

 

Air-Cooled,

 

 

 

 

 

Single-Phase at

12 gal

Two-Cylinder,

 

 

 

 

 

1800 rpm

Four-Cycle,

 

 

 

 

13 35 V

(45 L)

 

 

 

 

 

23 HP Gasoline or

 

 

 

 

 

 

 

 

 

 

And

Tank

 

 

 

 

 

25 HP LP Engine

 

 

 

 

 

2.4 kVA/kW, 20 A,

 

 

300 A, 25 V, 100%

 

 

 

 

w/Electronic

CV/DC

35

− −

 

120 V AC,

 

Governor

Duty Cycle

 

 

 

 

 

 

60-120 Hz,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Single-Phase

 

 

 

 

 

 

 

At All Speeds

 

 

 

 

 

 

 

 

 

 

4-3. Dimensions, Weights, and Operating Angles

 

Dimensions

 

 

Height

34 in (864 mm)

 

 

Width

20−1/2 in (521 mm)

 

 

Depth

45-1/2 in (1156 mm)

 

 

A

20 in (508 mm)

 

 

B

16-1/2 in (419 mm)

 

 

C

1−3/4 in (44 mm)

 

 

D

5 in (127 mm)

F

A

B

C

D

E

G

4 Holes

! Do not exceed tilt angles or engine could be damaged or unit could tip.

! Do not move or operate unit where it could tip.

E

32-3/4 in (832 mm)

 

 

F

44-1/4 in (1124 mm)

 

 

G

13/32 in (10 mm) Dia.

Weight

590 lb (267 kg)

Lifting Eye Weight Rating

1280 lb (580 kg)

 

25°

25°

25°

 

25°

 

Engine End

800 426

803 983

 

 

OM-4430 Page 13

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Contents Processes OM-4430217 243RDescription File Engine DriveFrom Miller to You Table of Contents − Maintenance & Troubleshooting Arc 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 spécifiquesLE Soudage peut provoquer un in cendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux DES Organes Mobiles peuvent pro voquer des blessures LE Bruit peut affecter l’ouïe’EXPLOSION DE LA Batterie peu Risque D’INCENDIE OU D’EXPLO- Sion LA Chaleur DU Moteur peut pro- voquer un incendie’AIR Comprimé peut provoquer des blessures 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 En ce qui concerne les implants médicaux− Definitions Symbol DefinitionsWeld, Power, And Engine Specifications − SpecificationsDimensions, Weights, and Operating Angles DescriptionFuel Consumption While Welding And Using Generator Power Dimensions For Units With Optional Running GearRPM Weld 1800 RPMAC Amperes Generator Power Curve100% Duty Cycle at 280 Amperes DC/CC TIG Mode Volt-Ampere CurvesDuty Cycle CV/DC MIG Mode Stick And MIG Mode Volt-Ampere CurvesCC/DC Stick Mode Installing Welding Generator − InstallationOil Engine Prestart ChecksReplacing The Battery Connecting Or Replacing The Battery+ − Connect negative − cable lastStop engine and let cool Installing Exhaust PipeTools Needed 1/2 Stop engine Connecting To Weld Output TerminalsFailure to properly connect Damage your machineRemote Receptacle Information Selecting Weld Cable SizesFront Panel Controls − Operating Welding GeneratorCold Weather Engine Operation Description Of Engine Controls See SectionInfrequently LoadedControlling Engine Speed And Weld/Generator Output Process Switch Settings Process SwitchWire Position Stick PositionsTIG Lift-ArcStart Procedure Stick Start Procedure − Scratch Start TechniqueLift-Arc t TIG TIG Electrode WorkpieceMin 20 a DC Remote Voltage/Amperage ControlConnect Remote Set Process Stick Welding OnlyControlling Engine Speed And Weld/Generator Power Output Hz Generator Power Receptacles And Supplementary Protectors− Operating Auxiliary Equipment Extension cordRized Service Agent Variable Frequency Hz Generator Power Receptacle RC3Press button to reset. If supple Receptacle Current Available in AmperesRoutine Maintenance − Maintenance & Troubleshooting100 200Maintenance Label Servicing Optional Spark Arrestor Servicing Air CleanerChanging Engine Oil, Oil Filter, And Fuel Filter Open left side door Overload ProtectionTrouble Remedy TroubleshootingWelding Variable Frequency Generator Power Receptacle RC3 Hz Generator Power Receptacles RC1 And RC2Check receptacle wiring and connections Necessary partsEngine Engine starts but stops when EngineCheck engine charging system according to engine manual Od of timeRecommended Spare Parts − Parts ListRecommended Spare Parts Circuit Diagram For Welding Generator Models − Electrical Diagrams232 961-A Selecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame Electrically Bond GeneratorHow Much Power Does Equipment Require? Grounding When Supplying Building SystemsUse ground device as stated in electrical codes Amperes x Volts = WattsApproximate 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 Selecting Extension Cord Use Shortest Cord Possible SOCKET/WRENCH Selection Table Standard Metric Welding Symbols Page Page Support ServiceYour distributor also gives 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