Safety Instructions; General Description; Operation - Lincoln Electric WIRE-MATIC SVM 117-A Service Manual

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Read and understand this entire section before operat-
ing your WIRE-MATIC 250.

SAFETY INSTRUCTIONS

WARNING
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 dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing
zone.
____________________________________
WELDING, CUTTING and
GOUGING SPARKS
can cause fire or explosion
• Keep flammable material away.
• Do not weld, cut or gouge on
containers that have held
combustibles.
____________________________________
ARC RAYS
can burn.
• Wear eye, ear and body
protection.
____________________________________
Only qualified personnel should operate this equip-
ment. Observe all safety information throughout this
manual.

OPERATION

When using a Wire-Matic 250 power source there
will be a small spark if the electrode contacts the
work or ground within several seconds after
releasing the trigger.
____________________________________

GENERAL DESCRIPTION

The WIRE-MATIC 250 is a complete semiautomatic
constant voltage DC arc welding machine built to meet
NEMA specifications. It combines a constant voltage
power source, a constant speed wire feeder, and a
microcomputer-based controller to form a reliable high-
performance welding system.
Simple controls, consisting of continuous full range cal-
ibrated voltage control and wire feed speed control,
provide versatility with ease of use.
WIRE-MATIC 250
CAUTION
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