HOT METAL from air arc cutting and gouging can cause fire or explosion.

DDo not cut or gouge near flammables.

DWatch for fire; keep extinguisher nearby.

HOT PARTS can cause burns and injury.

DDo not touch hot compressor or air system parts.

DLet system cool down before touching or ser- vicing.

READ INSTRUCTIONS.

DRead Owner’s Manual before using or servic- ing unit.

DStop engine and release air pressure before servicing.

DUse only genuine replacement parts from the manufacturer.

1-5. Additional Symbols For Installation, Operation, And Maintenance

FIRE OR EXPLOSION hazard.

D Do not install or place unit on, over, or near combustible surfaces.

DDo not install unit near flammables.

DDo not overload building wiring − be sure power supply system is properly sized, rated, and protected to handle this unit.

WELDING WIRE can cause injury.

DDo not press gun trigger until instructed to do so.

DDo not point gun toward any part of the body, other people, or any metal when threading welding wire.

FALLING UNIT can cause injury.

DUse lifting eye to lift unit and properly installed accessories only, NOT gas cylinders. Do not exceed maximum lift eye weight rating (see Specifications).

DLift and support unit only with proper equipment and correct procedures.

DIf using lift forks to move unit, be sure forks are long enough to extend beyond opposite side of unit.

OVERHEATING can damage motors.

DTurn off or unplug equipment before starting or stopping engine.

DDo not let low voltage and frequency caused by low engine speed damage electric motors.

DDo not connect 50 or 60 Hertz motors to the 100 Hertz receptacle where applicable.

FLYING SPARKS can cause injury.

D Wear a face shield to protect eyes and face.

D Shape tungsten electrode only on grinder with proper guards in a safe location wearing proper face, hand, and body protection.

DSparks can cause fires — keep flammables away.

MOVING PARTS can cause injury.

DKeep away from moving parts.

DKeep away from pinch points such as drive rolls.

OVERUSE can cause OVERHEATING.

DAllow cooling period; follow rated duty cycle.

DReduce current or reduce duty cycle before starting to weld again.

DDo not block or filter airflow to unit.

STATIC (ESD) can damage PC boards.

DPut on grounded wrist strap BEFORE handling boards or parts.

DUse proper static-proof bags and boxes to store, move, or ship PC boards.

TILTING OF TRAILER can cause injury.

DUse tongue jack or blocks to support weight.

DProperly install welding generator onto trailer according to instructions supplied with trailer.

READ INSTRUCTIONS.

DRead Owner’s Manual before using or servic- ing unit.

DUse only genuine replacement parts from the manufacturer.

DPerform engine and air compressor mainte- nance and service according to this manual and the engine/air compressor (if applicable) manuals.

OM-4433 Page 4

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Miller Electric Big Blue 300 HOT Parts can cause burns and injury, Fire or Explosion hazard, Welding Wire can cause injury

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.