Lincoln Electric IMT10049 WIRE FEEDER WELDER 125, 140 - Manual (Page 10)

B-1 OPERATION B-1
WIRE FEEDER WELDERS (125, 140 MODELS)
PRODUCT DESCRIPTION (PRODUCT
CAPABILITIES)
The portable 125Amp Wire Feeder Model is capable
of flux-cored welding on mild steel. The portable
140Amp Wire Feeder Model is capable of MIG weld-
ing on steel, stainless steel, and aluminum, in addition
to flux-core welding on mild steel.
MIG welding stands for Metal Inert Gas welding and
requires a separate bottle of shielding gas to protect
the weld. The Shielding gas used is determined by the
type of material you are welding on. Shielding gases
can be purchased separately from your local welding
gas distributor. MIG welding is ideal for welding on
thin and clean materials when an excellent cosmetic
weld is required. An example is automotive body pan-
els.
FCAW-S stands for Self shielding Flux-cored Arc
Welding and does not require a shielding gas to pro-
tect the weld since the welding wire has special addi-
tives known as flux to protect the weld from impurities.
Flux-cored welding is ideal for medium to thicker
material and for welding on painted or rusty steel.
Flux-cored welding is also ideal for outdoor applica-
tions where windy conditions might blow the MIG
shielding gas away from the weld. Flux-cored welding
produces a good looking weld but does not produce
an excellent weld appearance as MIG welding does.
Your 140Amp machine includes the necessary items
to weld with either the flux-cored welding or MIG weld-
ing process on steel. To weld on stainless steel, an
optional stainless steel welding wire can be purchased
separately. The 140Amp machine is spool gun ready
and the machine can weld aluminum using
.035”(0.9mm) diameter 4043 aluminum welding wire.
Since aluminum welding wire is soft, an optional spool
gun is recommended for best results. A welding
Procedure Decal on the wire drive compartment door
provides suggested settings for welding.
COMMON WELDING ABBREVIATIONS
GMAW (MIG)
• Gas Metal Arc Welding
FCAW (Innershield or Outershield)
• Flux Core Arc Welding
Read entire operation section before
operating the
WIRE FEEDER WELDERS .
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.
------------------------------------------------------------
WARNING