B-1

OPERATION

B-1

SAFETY PRECAUTIONS

Read and understand this entire section before operat- ing the machine.

WARNING

ELECTRIC SHOCK can kill.

Do not touch electrically live parts or electrode with skin or wet cloth- ing.

Insulate yourself from work and ground.

Always wear dry insulating gloves.

Read and follow “Electric Shock Warnings” in the Safety section if weld- ing must be performed under electrical- ly hazardous conditions such as weld- ing in wet areas or on or in the work- piece.

FUMES AND GASES can be dangerous.

• Keep your head out of fumes.

• Use ventilation or exhaust to remove fumes from breathing zone.

WELDING SPARKS can cause fire or explosion

Keep flammable material away.

Do not weld on containers that have held combustibles.

ARC RAYS can burn.

• Wear eye, ear and body protection.

Observe additional Safety Guidelines detailed in the beginning of this manual.

PRODUCT DESCRIPTION

Reliable, industrial-quality welding gun primarily for experienced welders.

In a few seconds the trigger may be rotated 180 degrees to a trigger “up” or “down” position by the welding operator. Neither tools nor gun disassembly is required.

GMAW or FCAW fume collection nozzles may be selected for fume collection. They can be easily and quickly installed or removed by hand. The design tol- erates dirt accumulation and heat without seizing in place.

Optional dual-procedure switch and modular trigger connection to wire feeder.

Spoiler: An optional ergonomic hand grip.

Gun cable compactly integrates welding current, wire feeding, and gas supply with gun control functions.

MAGNUM™ PRO 350 and 550 FUME GUNS

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Lincoln Electric 350, 550 manual Operation, Product Description