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OPERATION
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
GENERAL DESCRIPTION
The Handymig 170i is a complete semiautomatic con-
stant voltage DC portable arc welder. Included is a
tap-switch controlled, single phase constant voltage
transformer/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
available 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 Handymig 170i 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 with the
self-shielded, Innershield
®
process (FCAW).
OPERATIONAL FEATURES AND
CONTROLS
The Handymig 170i has the following controls as stan-
dard: 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
Liquid Arc steelcore 71T-GS electrode.
• Spindle accommodates both 8 in. (200 mm) diameter
and 4 in. (100 mm) diameter spools of wire.
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Handymig 170i