Lincoln Electric IM756-A manual Operation, General Description, Recommended Processes

B-1 OPERATION B-1

Read entire operation section before operating the machine.

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 contain- ers.

ARC RAYS can burn eyes and skin.

• Wear eye, ear and body protec- tion.

Observe all safety information throughout this manual.

GENERAL DESCRIPTION

The machine is a semiautomatic constant voltage DC arc welder. The machine uses a single phase con- stant voltage transformer, solid state rectifier and a DC permanent magnet motor for feeding and welding solid steel electrode and flux-cored electrode.

The machine is ideally suited for individuals having access to 115 volt AC input power and wanting the ease of use, quality and dependability of both metal inert gas (MIG) welding and the Innershield electrode process (self-shielded flux-cored welding). The machine will handle reels of wire up to 2 lbs(1 kg).

RECOMMENDED PROCESSES

The machine can be used for welding carbon and low- alloy steel with CO2 or argon/CO2 mixture shielding

gas. The welder can also be used without gas for the self-shielded, Innershield electrode process. The machine is configured for the Flux Cored Arc Welding process as delivered from the factory.

OPERATIONAL FEATURES AND CONTROLS

The machine has the following controls as standard:

•Power ON/OFF Switch

•Heat Range Switch

•1 – 2 Fine Heat Adjustment Switch

•Wire Speed Control

DESIGN FEATURES AND ADVANTAGES

•Operates on 115 volt input - no special wiring required.

•Solid state output control.

•Overload protection - incorporates a thermostat to protect the welder from overheating caused by mal- functions or overly heavy use.

•Permanent magnet wire drive motor.

•Easy-to-set controls for arc voltage and wire speed.

•Thumbscrew release idle roll pressure arm is easily adjusted.

•Reversible, dual groove drive roll will feed .023-

.035” (0.6- 0.9 mm) diameter wire.

•Accommodates spools of wire up to 2 lbs(1 kg) in weight.

•No external shielding gas is required when used with Lincoln Innershield .035” (0.9 mm) NR®-211- MP electrode.

•Easy to change polarity.

HANDY MIG