Lincoln Electric SP 170-I, Operator'S Manual

Page: 14 / 48

SP-170-I
B-1
B-1
OPERATION
Read entire operation section before
operating the SP 170-I.
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
GENERAL DESCRIPTION
The SP 170-I is a complete semiautomatic constant
voltage DC portable arc welder. Included is a tap-
switch controlled, single phase constant voltage trans-
former/rectifier power source and a wire feeder with
welding gun for feeding .025" (0.6 mm) through .030"
(0.8 mm) solid steel electrode and .035" (0.9 mm)
Innershield
®
NR-211-MP.
It is ideally suited for individuals having access to
230V 50/60 Hz AC input power and want the ease of
use, quality and dependability of both gas metal arc
welding or GMAW (also known as MIG welding) and
the Innershield
®
process (self-shielded flux-cored or
FCAW). A convenient chart is mounted inside the wire
feed section door for setting welding procedures for 24
gauge (.60 mm) through 5/16" (8.0 mm) mild steel.
The machine is rugged and reliable and is designed
for dependable service and long life.
RECOMMENDED PROCESSES
The SP 170-I can be used for welding mild steel,
stainless steels and aluminum using the GMAW, sin-
gle pass, process (MIG) which requires a supply of
shielding gas or it can be used for the self-shielded,
Innershield
®
process (FCAW).
OPERATIONAL FEATURES AND
CONTROLS
The SP 170-I has the following controls as standard:
Power ON/OFF Switch, Voltage Control, Wire Speed
Control, Trigger Switch, and a Circuit Breaker.
DESIGN FEATURES AND
ADVANTAGES
●
“ Cold electrode ” until gun trigger is pressed for an
added measure of safety.
●
Overload protection — incorporates both a thermo-
stat and a circuit breaker.
●
Quality wire drive with electronic overload protec-
tion.
●
“ Quick Release ” idle roll pressure arm is easily
adjusted.
●
Reversible, dual groove drive roll, shipped ready
to feed .030" (0.8 mm) diameter solid wire or .035"
diameter flux-cored wire. The drive roll is easily
reversed to feed .025" (0.6 mm) diameter solid
wire.
●