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OPERATION

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SAFTEY PRECAUTIONS

Read entire operation section before operating the SP-175T.

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 containers.

GENERAL DESCRIPTION

The SP-175T 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 230 or 208 volt 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 has designed for dependable service and long life.

RECOMMENDED PROCESSES

The SP-175T 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-175T has the following controls as standard: Power ON/OFF Switch, Voltage Control, Wire Speed Control, Trigger Switch, and a Circuit Breaker.

ARC RAYS can burn eyes and skin.

Wear eye, ear and body protec- tion.

Observe all safety information throughout this manual.

DESIGN FEATURES AND

ADVANTAGES

Reconnectable for 230 volt or 208 volt single phase 60 Hz input power.

“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 .023"/.025" (0.6 mm) diameter wire. The drive roll is easily reversed to feed .030" (0.8 mm) diameter 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.

SP-175T

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Lincoln Electric SP-175T manual Operation, Saftey Precautions, General Description, Design Features Advantages