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B-2
OPERATING INSTRUCTIONS
Read and understand this entire section before operat-
ing your Ranger 250.
SAFETY INSTRUCTIONS
WARNING
Do not attempt to use this equipment until you have
thoroughly read all the operating and maintenance
manuals supplied with your machine. They include
important safety precautions; detailed engine starting,
operating and maintenance instructions and parts lists.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts such
as output terminals or internal wiring.
• Insulate yourself from the work and
ground.
• Always wear dry insulating gloves.
FUMES AND GASES can be dan-
gerous.
• 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.
OPERATION
Only qualified personnel should install, use, or ser-
vice this equipment.
ADDITIONAL SAFETY PRECAUTIONS
Always operate the welder with the hinged door closed
and the side panels in place. These provide maximum
protection from moving parts and insure proper cooling
air flow.
GENERAL DESCRIPTION
The Ranger 250 is a gasoline-engine-powered DC
multi-process welding power source and 120 / 240
VAC power generator. The engine drives a generator
that supplies three-phase power for the DC welding cir-
cuit and single-phase power for the AC auxiliary out-
lets. The DC welding control system uses state of the
art Chopper Technology (CT™) for superior welding
performance.
RANGER 250
WARNING
ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or
vent exhaust to the outside.
• Do not stack anything on or near the
engine.
MOVING PARTS can injure.
• Do not operate this equipment with any
of its doors open or guards off.
• Stop the engine before servicing it.
• Keep away from moving parts.
B-2
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