Lincoln Electric IM710 SP-170T - Manual (Page 16)

B-1 OPERATION
GENERAL DESCRIPTION
The SP-170T 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 .023" (0.6 mm) through .030"
(0.8 mm) solid steel electrode. Optional kits are avail-
able for .035" (0.9 mm) and .045" (1.2 mm)
Innershield
® NR-211-MP.
It is ideally suited for individuals having access to 240
volts 50 Hz AC input power and want the ease of use,
quality and dependability of both gas metal arc weld-
ing 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 has designed
for dependable service and long life.
RECOMMENDED PROCESSES
The SP-170T can be used for welding mild steel using
the GMAW, single pass, process 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-170T 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 protection.
• “Quick Release” idle roll pressure arm is easily
adjusted.
• Reversible, dual groove drive roll, shipped ready to
feed .023"/.025" (0.6 mm) diameter wire. The drive
roll is easily reversed to feed .030" (0.8 mm) diame-
ter solid wire and .035" (0.9 mm) flux-cored diameter
wire. Optional drive roll included in .045" (1.2 mm)
Innershield
® welding kit must be installed to feed
.045" (1.2 mm) flux-cored wire.
• No external shielding gas is required when used with
Lincoln Innershield .035” (0.9mm) NR-211-MP elctrode.
• Spindle accommodates both 8 in. (200 mm) diameter
and 4 in. (100 mm) diameter spools of wire.
B-1
SP-170T
SAFETY PRECAUTIONS
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.
See additional warning information at
front of this opeerator’s manual.
WARNING