Read entire operation section before operating the Pro-MIG 140.
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 Pro-MIG 140 is a complete semiautomatic con- stant-voltage DC wire feeder / power source arc welder. It has been designed for workshop, hobby, automotive and light maintenance. Included is a tap- switch controlled, single phase constant voltage trans- former / rectifier power source and a wire feeder weld- ing gun for feeding .023 - .025” (0.6 mm) through
.030” (0.8 mm) solid steel electrode. An optional kit is available for feeding .035” (0.9 mm) Innershield® NR- 211-MP flux-cored wire.
The Pro-MIG 140 is ideally suited for individuals hav- ing access to 120 volt AC input power, and wanting the ease of use, quality and dependability of both gas metal arc welding or GMAW (also known as MIG welding) and the Innershield electrode process (self shielded flux cored or FCAW). The Pro-MIG 140 is a rugged and reliable machine that has been designed for dependable service and long life.
RECOMMENDED PROCESSES
The Pro-MIG 140 can be used for welding mild steel using the Gas Metal Arc Welding (GMAW or MIG, Metal Inert Gas) single pass process, which requires a supply of shielding gas, or the flux-cored arc welding (FCAW) process using Innershield® electrode wire. The Pro-MIG 140 is configured for use with the FCAW process as delivered from the factory.
OPERATIONAL CONTROLS
The Pro-MIG 140 has the following controls as stan- dard: Control Power ON/OFF Switch, Voltage Control, Wire Speed Control, Trigger Switch, and a Circuit Breaker.
DESIGN FEATURES
●Operates on 120 volt input
●“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. Drive roll will feed .023 – .025” (0.6 mm) and .030" - .035" (0.8 - 0.9 mm) diameter wire.
