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Lincoln Electric PRECISION TIG SVM186-A User Manual

Lincoln Electric PRECISION TIG SVM186-A
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For use with machine code numbers:
SVM186-A
October, 2008
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 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
PRECISION TIG 225
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Cleveland, Ohio 44117-1199 U.S.A. TEL: 1.888.935-3877 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
World's Leader in Welding and Cutting Products
Copyright © Lincoln Global Inc.
11317, 11318, 11319
(11320 Ready-Pak)
(11321 Ready-Pak w/Cart)
®

Table of Contents

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Lincoln Electric PRECISION TIG SVM186-A Specifications

General IconGeneral
BrandLincoln Electric
ModelPRECISION TIG SVM186-A
CategoryWelding System
LanguageEnglish

Summary

Safety

Engine Powered Equipment Safety

Safety precautions for engine-powered equipment.

Electric and Magnetic Field Hazards

Dangers associated with electric and magnetic fields during welding.

Electric Shock Hazards

Critical warnings and precautions regarding the risk of electric shock.

Arc Ray and Fume Hazards

Safety measures for protecting against arc rays and hazardous fumes/gases.

Cylinder and Fire Hazards

Precautions for handling gas cylinders and preventing fire/explosion from sparks.

Electromagnetic Compatibility (EMC)

Information on electromagnetic compatibility and interference reduction methods.

Installation

Technical Specifications

Detailed technical data and performance parameters of the welding machine.

Installation Safety and Location

Safety precautions, location selection, environmental rating, and mounting guidelines.

Grounding and Interference Protection

Procedures for machine grounding and managing high frequency interference.

Power and Connection Procedures

Input power connections, reconnection, and output connection details.

Welding Process Connections

Specific instructions for connecting TIG and Stick welding components.

Operation

Operation Safety Precautions

General safety rules and warnings for operating the welding machine.

Machine Overview and Controls

Graphic symbols, product description, and detailed explanation of controls and settings.

Operating Procedures and Features

Power-up sequence, operating steps, pulse TIG control, and remote operation.

Welding Modes and Amperage Guidance

Stick mode welding, benefits, and recommended electrode amperage ranges.

Maintenance

Maintenance Safety Precautions

Safety guidelines before performing maintenance tasks.

Routine and Periodic Maintenance

Recommended cleaning, inspection, and adjustment procedures for regular upkeep.

Fan Motor or Fan Blade Replacement

Instructions for replacing the cooling fan motor or blade.

Troubleshooting and Repair

Troubleshooting Guide Usage

Guidance on how to effectively use the troubleshooting section for diagnosing problems.

PC Board Troubleshooting

Steps for diagnosing and replacing PC boards, including static precautions.

Output Problem Diagnosis

Common issues related to machine output, with possible causes and solutions.

Component Testing Procedures

Procedures for testing specific components like SCRs, transformers, and circuits.

Component Replacement Procedures

Step-by-step guides for removing and replacing key assemblies like SCR bridge, polarity switch, and transformers.

Diagram Section

Wiring Diagram

Complete machine wiring diagram detailing all connections and components.

Machine Schematic

Overall schematic showing how all major circuits interconnect.

Control PC Board Diagrams

Schematics and component layouts for the control PC boards.

Bypass PC Board Diagrams

Schematic and component layout for the bypass PC board.

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