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Lincoln Electric LN-9 SVM127-A User Manual

Lincoln Electric LN-9 SVM127-A
135 pages
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SVM127-A
November, 1996
Safety Depends on You
Lincoln arc welding equipment
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 READ-
ING THIS MANUAL AND THE
SAFETY PRECAUTIONS CON-
TAINED THROUGHOUT. And,
most importantly, think before
you act and be careful.
SERVICE MANUAL
World’s Leader in Welding and Cutting Products Premier Manufacturer of Industrial Motors
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: 9134, 9842, 9958, 10316, 10327
LN-9 Wire Feeder
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Table of Contents

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Lincoln Electric LN-9 SVM127-A Specifications

General IconGeneral
BrandLincoln Electric
ModelLN-9 SVM127-A
CategoryWelding System
LanguageEnglish

Summary

Safety Information

General Safety and Engine Operation

Covers engine safety, EMF, and general precautions.

Electrical and Arc Hazards

Covers electric shock, arc rays, fumes, and gases risks.

Fire, Explosion, and Cylinder Safety

Covers fire, sparks, gas cylinders, and related safety.

Installation and Setup

Technical Specifications

Details model specs, wire diameters, dimensions, and temperature ranges.

Electrical Connections and Power Sources

Covers power input assembly, various source connections, and wiring.

Grounding and Cable Connections

Details work cable, direct work lead, and machine grounding.

Operation and Controls

General Description and Power Sources

Overview of the wire feeder and compatible power sources.

Wire Loading Procedures

Covers loading Readi-Reels, spools, and coils.

Welding Adjustments and Settings

Details test welds, response settings, and control adjustments.

Accessories and Kits

Reel Stands and Mounting Options

Describes various stands, adapters, and mounting hardware.

Gun and Cable Assemblies

Details available gun and cable options for different processes.

Wire Feeder Specific Accessories

Lists optional kits for enhanced functionality.

Maintenance and Care

Routine Maintenance Tasks

Covers drive rolls, guide tubes, and reel mounting upkeep.

Periodic Maintenance Checks

Details control box and motor/gearbox inspection procedures.

Gun Cable Connector Requirements

Specifies connection standards for gun cables.

Theory of Operation

System Description and Power Input

Explains overall function and power input circuits.

Control and Shutdown Circuits

Details trigger, shutdown, and arc voltage control logic.

Printed Circuit Board Functions

Describes the role of individual PCBs within the system.

Troubleshooting and Repair

Troubleshooting Guide Usage

Instructions on how to diagnose and locate issues.

Common Functional Problems

Lists and addresses issues with wire feed and meter readings.

Component-Specific Tests

Details procedures for testing transformers, motors, and PC boards.

Electrical Diagrams

Main Wiring Diagram

Comprehensive schematic of system wiring.

Operating Schematic

Functional block diagram of system circuits.

Individual Board Schematics

Detailed schematics for meter, trigger, and tach boards.

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