Lincoln Electric POWER MIG 140 User Manual

Operator’s Manual
POWER MIG
®
140, 180 MODELS (AU)
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IM890-B | Issue D ate Feb-17
© Lincoln Global, Inc. All Rights Reserved.
For use with machines having Code Numbers:
11254, 11255, 11256, 11257,
11444, 12724
Save for future reference
Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)

Lincoln Electric POWER MIG 140 Specifications

General

Input Voltage	120V
Duty Cycle	20% @ 90A
Input Power	120V, 20A
Input Current at Rated Output	20A
Welding Process	MIG
Wire Feed Speed	50 - 500 IPM
Rated Output	90A @ 20V, 20% Duty Cycle
Welding Wire Diameter Range	0.023 - 0.035 in
Output Amperage Range	30 - 140 A
Weight	57 lbs

Summary

Safety Guidelines

General Safety and Damage Inspection

Covers initial inspection, user responsibility, and general warnings/cautions.

Personal Safety and Environment

Focuses on fume control, ventilation, and wearing appropriate protective gear.

Specific Chemical and Material Warnings

Electrical, Arc, and EMF Hazards

Details risks from electric shock, arc rays, and electromagnetic fields.

Fire, Explosion, and Cylinder Safety

Addresses hazards related to sparks, fire, flammable materials, and gas cylinders.

Electromagnetic Compatibility (EMC)

EMC Compliance and Installation

Reducing Electromagnetic Interference

Installation and Setup

Technical Specifications

Details electrical requirements, output ratings, and physical dimensions of the welder.

Operation

Product Description and Controls

Welding Procedures

Setting Up for Flux-Cored Welding

Step-by-step guide to prepare the machine for flux-cored welding.

Setting Up for MIG Welding

Step-by-step guide for preparing the machine for MIG welding.

Setting Up for Aluminum Welding

Maintenance

Safety and Routine Maintenance

Gun, Cable, and Liner Maintenance

Overload Protection and Component Checks

Troubleshooting

Guide to Troubleshooting

Common Weld Output and Feeding Issues

Lists problems like no output, poor feeding, and their solutions.

Gas Flow and Arc Stability Issues

Addresses problems with gas flow and unstable arc starting, with solutions.

Diagrams

Wiring and Electrical Diagrams