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Lincoln Electric 125 User Manual

Lincoln Electric 125
37 pages
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Operator’s Manual
WIRE FEEDER WELDERS (125, 140 MODELS)
Register your machine:
www.lincolnelectric.com/register
Authorized Service and Distributor Locator:
www.lincolnelectric.com/locator
IM10049-A | Issue D ate Mar- 14
© Lincoln Global, Inc. All Rights Reserved.
For use with machines having Code Numbers:
11631, 11632, 11633, 11634,
11635, 11636, 11637, 11638,
11639, 12100, 12101, 12102,
12103, 12104, 12105, 12106,
12107
Save for future reference
Date Purchased
Code: (ex: 10859)
Serial: (ex: U1060512345)
OPERATOR’S MANUAL
MANUAL DE OPERACIÓN
MANUEL DE L’OPÉRATEUR

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Lincoln Electric 125 Specifications

General IconGeneral
Input Voltage120V
Output Range30-125A
Duty Cycle20% @ 90A
Wire Feed Speed Range50-500 ipm
Input Current at Rated Output20A
Weld ThicknessUp to 3/16 in. steel
Welding ProcessMIG
Wire Size0.035 in
Input Power20A
Rated Output90A @ 18.5VDC

Summary

Installation

Technical Specifications

Electrical input, output, and physical dimensions for 125/140 Amp units.

Identify Components (125 Amp)

Locating and identifying parts for the 125 Amp wire feeder welder.

Identify Components (140 Amp)

Locating and identifying parts for the 140 Amp wire feeder welder.

Operation

Safety Precautions

Key safety warnings for operating the wire feeder welders.

Controls and Settings

Explanation of machine controls: Power Switch, Arc Voltage, Wire Feed Speed.

Flux-Cored Weld Setup

Steps for setting up and performing flux-cored welding with 125/140 Amp machines.

MIG Weld Setup

Procedure for setting up MIG welding, including shielding gas for 140 Amp machines.

Aluminum Weld Setup

Guide for performing aluminum welding using a spool gun on 140 Amp machines.

Accessories

Magnum 100SG Spool Gun

Details on the Magnum 100SG Spool Gun accessory for aluminum welding.

Small Canvas Cover

A canvas cover to protect the machine when not in use.

Utility Cart

A heavy-duty cart for storing and transporting the welder and gas cylinder.

Welding Cart

A lightweight cart designed to store and transport the welder and accessories.

Maintenance

Safety Precautions

Critical safety warnings before performing maintenance on the wire feeder welders.

Routine Maintenance Procedures

Guidelines for routine maintenance of power source, wire feed, fan motor, and wire reel.

Gun and Cable Maintenance

Procedures for cleaning gun cables and maintaining contact tips, nozzles, and gun tubes.

Overload Protection

Explanation of output, thermal, and wire drive motor overload protection.

Changing Gun Liner

Step-by-step instructions for replacing the gun liner assembly.

Troubleshooting

Using the Troubleshooting Guide

How to use the guide to identify problems, causes, and recommended actions.

Output and Feeding Problems

Common output and feeding issues, their causes, and solutions.

Gas Flow and Welding Problems

Common gas flow and welding issues, their causes, and solutions.

Diagrams

Wiring Diagrams

Electrical wiring diagrams for various model code numbers of the wire feeder welders.

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