Miller Electric Big Blue 300 manual Adjusting Engine Speed On Standard Models, Maximum

Page 42

8-6. Adjusting Engine Speed On Standard Models

Engine Speed

RPM (Hz)

(No Load)

Weld/Power

1880 (61.7)

Maximum

 

 

!

Stop engine and let cool.

 

Engine speed is factory set and

 

should not require adjustment. Af-

 

ter tuning engine, check engine

 

speed with tachometer or frequen-

 

cy meter. See table for proper no

 

load speed. If necessary, adjust

 

speed as follows:

 

Start engine and run until warm.

 

Turn Process/Contactor switch to

 

Weld Terminals Always On − Stick

 

position.

 

1

Lock Nut

3

2

Adjustment Screw

Loosen nut. Turn screw until engine

 

 

runs at weld/power speed. Tighten

 

nut.

 

 

. Do not set engine speed higher

 

 

than specified. Tampering with

 

 

adjustments other than shown

 

 

may affect engine warranty

 

3

Engine Stop Lever

 

!

Stop engine.

Close door.

2

1

Tools Needed:

803 563-E

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Contents Description OM-4433218 314PProcesses File Engine DriveFrom Miller to You Table of Contents Warranty Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsARC Rays can burn eyes and skin Fumes and Gases can be hazardousBuildup of GAS can injure or kill Welding can cause fire or explosionEngine Hazards Compressed Air HazardsFire or Explosion hazard Welding Wire can cause injuryHOT Parts can cause burns and injury Falling Unit can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interferenceUN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation 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 LE Bruit peut affecter l’ouïe’EXPLOSION DE LA Batterie peu DES Organes Mobiles peuvent pro voquer des blessuresLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessuresRisque D’INCENDIE OU D’EXPLO- Sion LES Fils DE Soudage peuvent provoquer des blessures LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures ’EMPLOI Excessif peutInformation EMF Proposition californienne 65 AvertissementsPrincipales normes de sécurité En ce qui concerne les implants médicaux− Definitions − 50 h StdStd Manufacturer’s Rating Label Symbols And Definitions Some symbols are found only on CE products− Specifications Weld, Power, And Engine SpecificationsDimensions, Weights, And Operating Angles TIG Mode Stick ModeMIG Mode Volt-Ampere CurvesDuty Cycle And Overheating Curve shows typical fuel use under weld or power loadsFuel Consumption This unit is rated for welding at 250 amperes continuouslyAC Generator Power Curve 150 125 100Location/Airflow Clearance − InstallationInstalling Welding Generator Grounding1Mounting Surface Mounting Welding GeneratorSupporting The Unit To Weld Unit In PlaceStop engine and let cool Installing Exhaust PipeTools Needed 1/2 Point exhaust pipe in desired diDo not overfill battery cells Activating The Dry Charge Battery If ApplicableConnecting The Battery Close door after connecting batteryFuel Coolant Recovery TankEngine Prestart Checks OilMIG and Fcaw Welding Connecting To Weld Output TerminalsStick and TIG Welding Stop engineStop engine Before Connecting to Weld Output terminals Selecting Weld Cable Sizes150 ft 200 ft 250 ft Connecting To Remote 14 Receptacle RC14 Socket InformationWelding Symbols − Operating Welding Generator Front Panel Controls See SectionDescription Of Front Panel Controls See Section Process/Contactor Switch Process/Contactor Switch SettingsDo not Strike Like a Match Lift-ArcStart ProcedureLift-Arc Start Method Touch Lift-Arc t TIGRemote Voltage/Amperage Control Generator Power Receptacles − Operating Auxiliary EquipmentAt least once a month, run engine at − Maintenance & Troubleshooting Routine MaintenanceMaintenance Label Servicing Air Cleaner To clean air filterInspecting And Cleaning Optional Spark Arrestor Muffler Servicing Engine Cooling SystemMaximum Adjusting Engine Speed On Standard ModelsMay affect engine warranty Do not set engine speed higherEngine Speed No Load Engine Speed AdjustmentWeld/Power Speed Adjustment Rpm max 62.6 Hz 1500 rpm 50 HzTo replace primary canister fuel filter Servicing Fuel And Lubrication SystemsTo change oil and filter To drain water from fuel systemOverload Protection Checking Generator Brushes Replace Damaged BrushesVoltmeter/Ammeter Help Displays Help 20 DisplayHelp 25 Display Troubleshooting WeldingGenerator Power EngineCheck for obstructed throttle solenoid Material Thickness Reference Chart − Electrical Diagrams Circuit Diagram For Welding Generator219 228−E − RUN-IN Procedure WetstackingWelding Generator Output and do not exceed duty Run-In Procedure Using Load BankFrom flammables Cycle or equipment damage mayRun-In Procedure Using Resistance Grid − Generator Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame Use ground device as stated in electrical codes Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP x 1000 / Volts = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible − Parts List 101 111 110 −3 109 108 −2 107 102 103 9897 104 106 10580Fig.12−4 66654243 TE1 Dia Part Description Quantity Mkgs Batt Panel, Front w/Components Panel, Front w/Components -1ItemFUEL/HM Control Panel Generator Generator -1ItemRectifier Assembly Wiring Harnesses Service Your distributor also givesSupport For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s

Big Blue 300 specifications

The Miller Electric Big Blue 300 is a powerful and versatile engine-driven welder that has become a popular choice for professionals in various industries. Designed to excel in both welding and generator applications, the Big Blue 300 provides reliable performance, advanced technology, and exceptional durability, making it suitable for demanding work environments.

One of the standout features of the Big Blue 300 is its impressive output capabilities. With a maximum welding output of 300 amps, this machine can handle a wide range of welding applications, from stick to TIG and MIG processes. The dual voltage output allows for versatility in the field, accommodating both 120V and 240V power requirements, ensuring you can power tools and equipment directly from the welder.

The Big Blue 300 is equipped with Miller's innovative Clean Air Technology, which ensures that the engine operates efficiently and produces fewer emissions. This feature not only meets environmental standards but also enhances the longevity of the machine. The cooling system is engineered to maintain optimal operating temperatures, extending the life of the engine and related components.

For ease of use, the Big Blue 300 features an intuitive control panel with easy-to-read gauges and simple adjustment settings, allowing operators to quickly set welding parameters. The built-in Fuel Gauge and Hour Meter provide real-time information about fuel levels and usage, enabling efficient operation and maintenance planning.

Another notable characteristic of the Big Blue 300 is its rugged construction. Built to withstand harsh job site conditions, the machine features a durable frame and heavy-duty components that can endure the rigors of everyday use. The oversized wheels and solid axle design enhance portability, making it easy to transport across various terrains.

Additionally, the Big Blue 300 is designed for quiet operation, making it suitable for locations where noise levels are a concern. Its low decibel rating ensures that it won’t disturb the work environment, contributing to a more comfortable and productive atmosphere.

Overall, the Miller Electric Big Blue 300 is a robust engine-driven welder that combines power, efficiency, and portability. Whether working on construction sites, maintenance tasks, or fabrication projects, this machine delivers exceptional performance and reliability, making it a valuable tool for professionals who demand the best in their equipment.
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