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Lincoln Electric LN-25 PORTABLE CV/CC IM620-B User Manual

Lincoln Electric LN-25 PORTABLE CV/CC IM620-B
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LN-25 PORTABLE CV/CC
SEMIAUTOMATIC WIRE FEEDER
OPERATING MANUAL
IM620-B
November, 2006
For use with machines having Code Number 10556 11144
10557 11145
10558 11282
11283
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built with
safety in mind. However, your overall
safety can be increased by proper
installation ... and thoughtful opera-
tion 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.
• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
• World's Leader in Welding and Cutting Products •
Copyright © 2006 Lincoln Global Inc.
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Lincoln Electric LN-25 PORTABLE CV/CC IM620-B Specifications

General IconGeneral
TypePortable Wire Feeder
Duty Cycle60% at 300 A
Wire Size Range0.030-0.045 in
Wire Feed Speed Range50-700 IPM
ProcessesGMAW, FCAW

Summary

SAFETY PRECAUTIONS

California Proposition 65 Warnings

Warnings about chemicals known to cause cancer, birth defects, or reproductive harm.

General Operation Warnings

Key safety advice for operating the equipment safely and preventing injury.

Electric and Magnetic Field Safety

Information on potential health effects of electric and magnetic fields.

OPERATIONAL HAZARDS

Electrical Shock Hazards

Details the risks of electric shock and how to prevent them.

Fume, Gas, and Environmental Hazards

Addresses dangers from welding fumes, gases, and the need for ventilation.

FIRE AND EXPLOSION HAZARDS

Welding Sparks and Fire Prevention

Guidelines to prevent fires and explosions caused by welding sparks.

Cylinder Safety and Handling

Precautions for safely handling compressed gas cylinders.

ELECTRICALLY POWERED EQUIPMENT SAFETY

Safety for Electrically Powered Equipment

Outlines safety measures for electrically powered welding equipment.

INSTALLATION

Technical Specifications

Key technical data and operating parameters for the LN-25 wire feeder.

INSTALLATION SAFETY AND CONNECTIONS

Installation Safety Precautions

Critical safety guidelines to follow before and during equipment installation.

Power Source Connections

Instructions for connecting the LN-25 to various Lincoln Electric power sources.

CABLE AND ACCESSORY CONNECTIONS

Gun Cable Connection to Feeder

Procedure for connecting the gun cable to the wire feeder.

Weld Cable Connection

Guidelines for proper weld cable sizing and connection.

Wire Feed Drive Roll and Guide Tube Kits

Information on selecting and installing drive roll and guide tube kits.

OPERATION

Operating Safety Precautions

Essential safety rules to observe during the operation of the LN-25 wire feeder.

General Description and Capabilities

Overview of the LN-25's features, purpose, and welding capabilities.

LN-25 INSTRUMENTS AND CONTROLS

Control Panel Overview

Explanation of the LN-25's front panel controls and instruments.

OPERATION SEQUENCE AND WIRE LOADING

Sequence of Operation and Wire Loading

Step-by-step guide for loading wire and the general operational sequence.

WIRE FEED SPEED SETTINGS

Wire Feed Speed Presetting

Guidance on presetting wire feed speed for CV and CC modes.

WELDING AND SHUTDOWN PROCEDURES

Making a Weld

Steps involved in performing a weld using the LN-25.

Procedure at End of Coil

Steps for removing old wire and loading a new coil.

Automatic Protection Shutdowns

Information on the LN-25's automatic shutdown features for protection.

ACCESSORIES

LN-25 Option Chart

A chart detailing compatibility between LN-25 models and optional kits.

Remote Control Options

Information on kits for remote control of output voltage and other functions.

Gun Cable and Switch Requirements

Technical specifications for gun cable connectors and switches.

MAINTENANCE

Maintenance Safety Precautions

Crucial safety measures before performing any maintenance tasks.

Routine Maintenance Procedures

Regular checks and cleaning for drive rolls, gearbox, and electrical components.

Wire Speed Dial Calibration

Steps for accurately calibrating the wire speed dial on the LN-25.

TROUBLESHOOTING

How to Use Troubleshooting Guide

Instructions on how to effectively use the troubleshooting guide.

Feeding and Output Problems

Common issues related to wire feeding, output, and control board connections.

Weld Quality Issues

Addresses problems affecting weld bead quality, such as porosity or stubbing.

WIRING DIAGRAMS

Wiring Diagram for Codes 10556, 10557, 10558

Electrical schematic for specific LN-25 models.

Wiring Diagram for Codes 11144, 11145, 11282, 11283

Electrical schematic for a different range of LN-25 models.

PHYSICAL DIMENSIONS

LN-25 Physical Dimensions

Provides the physical size and measurements of the LN-25 wire feeder.

NOTES

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