Operation; General Description; Design Features - Lincoln Electric Pro-MIG 140 Manual Del Operador

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Read entire operation section before
operating the Pro-MIG 140.
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live
parts or electrode with skin or
wet clothing. Insulate yourself
from 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 SPARKS can
cause fire or explosion.
• Keep flammable material away.
• Do not weld on closed contain-
ers.
ARC RAYS can burn eyes
and skin.
• Wear eye, ear and body protec-
tion.
Observe all safety information throughout
this manual.

OPERATION

GENERAL DESCRIPTION

The Pro-MIG 140 is a complete semiautomatic con-
stant-voltage DC wire feeder / power source arc
welder. It has been designed for workshop, hobby,
automotive and light maintenance. Included is a tap-
switch controlled, single phase constant voltage trans-
former / rectifier power source and a wire feeder weld-
ing gun for feeding .023 - .025" (0.6 mm) through
.030" (0.8 mm) solid steel electrode. An optional kit is
available for feeding .035" (0.9 mm) Innershield ® NR-
211-MP flux-cored wire.
The Pro-MIG 140 is ideally suited for individuals hav-
ing access to 120 volt AC input power, and wanting
the ease of use, quality and dependability of both gas
metal arc welding or GMAW (also known as MIG
welding) and the Innershield electrode process (self
shielded flux cored or FCAW). The Pro-MIG 140 is a
rugged and reliable machine that has been designed
for dependable service and long life.
RECOMMENDED PROCESSES
The Pro-MIG 140 can be used for welding mild steel
using the Gas Metal Arc Welding (GMAW or MIG,
Metal Inert Gas) single pass process, which requires a
supply of shielding gas, or the flux-cored arc welding
(FCAW) process using Innershield ® electrode wire.
The Pro-MIG 140 is configured for use with the FCAW
process as delivered from the factory.
OPERATIONAL CONTROLS
The Pro-MIG 140 has the following controls as stan-
dard: Control Power ON/OFF Switch, Voltage Control,
Wire Speed Control, Trigger Switch, and a Circuit
Breaker.

DESIGN FEATURES

G
Operates on 120 volt input
G
"Cold electrode" until gun trigger is pressed for an
added measure of safety.
G
Overload protection — incorporates both a thermo-
stat and a circuit breaker.
G
Quality wire drive with electronic overload protec-
tion.
G
"Quick Release" idle roll pressure arm is easily
adjusted.
G
Reversible, dual groove drive roll. Drive roll will
feed .023 – .025" (0.6 mm) and .030" - .035" (0.8 -
0.9 mm) diameter wire.
Pro-MIG 140
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