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Lincoln LN-742 User Manual

Lincoln LN-742
81 pages
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LN-742 & LN-742H Wire Feeders
World’s Leader in Welding and Cutting Products Premier Manufacturer of Industrial Motors
SERVICE MANUAL
Sales and Service through Subsidiaries and Distributors Worldwide
22801 St. Clair Ave. Cleveland, Ohio 44117-1199 U.S.A. Tel (216) 481-8100
For use with machines having Code Numbers:
10027
10028
10048
10049
10238
10239
10240
10241
SVM130-A
February 1997
Safety Depends on You
Lincoln arc welding equip-
ment is designed and built
with safety in mind.
However, your overall safety
can be increased by proper
installation ... and thoughtful
operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT READING THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you
act and be careful.
RETURN TO MAIN INDEX

Table of Contents

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Lincoln LN-742 Specifications

General IconGeneral
BrandLincoln
ModelLN-742
CategoryWelding System
LanguageEnglish

Summary

Safety Precautions

Electric Shock Hazards

Details hazards and precautions related to electric shock during welding operations, including proper insulation and grounding.

Arc Rays and Fumes Hazards

Explains the dangers of arc rays and welding fumes/gases, emphasizing protective measures and ventilation.

Fire and Cylinder Hazards

Warns about welding sparks igniting materials and hazards associated with compressed gas cylinders.

Electrical Equipment Safety

Outlines electrical safety precautions for powered equipment installation and grounding.

Engine Powered Equipment Safety

Details safety precautions for operating and maintaining engine-powered welding equipment.

Arc Welding Safety Precautions

Specific safety precautions for arc welding, covering electrical shock, arc rays, and fire hazards.

Installation Procedures

Technical Specifications

Provides detailed technical specifications for the LN-742 wire feeder, including voltage, speed, and dimensions.

Operation Guide

Operating Instructions and Safety

Read instructions and safety precautions before operating; general description and recommended equipment.

Making a Weld

Step-by-step guide for setting up and performing a weld using the wire feeder.

Maintenance Procedures

Troubleshooting and Repair

Troubleshooting Guide Procedures

Explains how to use the guide and outlines PC board troubleshooting steps.

Problem Identification and Solutions

Lists common function, feeding, and welding problems with their causes and recommended actions.

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