Welding System User Manual

OPERATING INSTRUCTIONS
Read and understand this entire section before operat-
ing your Classic III or Classic IIID.
SAFETY INSTRUCTIONS
Do not attempt to use this equipment until you have
thoroughly read all the operation 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 or
electrodes with your skin or wet clothing.
• 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.
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.
Only qualified personnel should install, use, or ser-
vice this equipment.
GENERAL DESCRIPTION
The Classic III and Classic IIID are heavy duty engine
driven DC arc welding power sources capable of pro-
viding constant current output for stick welding or DC
TIG welding. These welders are wound with all copper
coils and feature improved door latches and stainless
steel hinges. With the addition of the optional K623-1
Wire Feed Module, the welders will provide constant
voltage output for running the LN-7, LN-23P, or LN-25
wire feeders.
The Classic III and Classic IIID have a current range of
40-350 DC amps with a 50% duty cycle at 300
amps/32 volts. The units are also capable of providing
3.0 kVA of 115/230 volt, 60 Hertz AC auxiliary power.
The Classic III uses the Continental TM27 four-cylin-
der, industrial water-cooled gasoline engine, and the
Classic IIID uses the Continental TMD27 industrial
water cooled diesel engine.
OPERATION
B-2 B-2
Classic III and IIID
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WARNING
WARNING