Lincoln Electric PRECISION TIG 185 SVM169-A User Manual

PRECISION TIG 185
SVM169-A
July, 2006
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
For use with machines having Code Number : 11105 thru 11109
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Copyright © 2006 Lincoln Global Inc.

Lincoln Electric PRECISION TIG 185 SVM169-A Specifications

General

Model	PRECISION TIG 185 SVM169-A
Input Voltage	230 V
Input Phase	Single Phase
Input Frequency	50/60 Hz
Input Current	30 A
Rated Output	185 A
Open Circuit Voltage	80V
Process	TIG, Stick
TIG Welding Capability	Yes
Stick Welding Capability	Yes
High Frequency Start	Yes
Pulse Welding	Yes
AC/DC Output	DC

Summary

Safety

General Safety Precautions

Covers engine, EMF, and general safety advice for operation.

Electrical Shock and Arc Hazards

Details risks from electric shock and arc rays, and protective measures.

Fumes, Gases, and Fire Safety

Installation Section

Installation Safety and Setup

Crucial safety warnings, location, grounding, lifting, and environmental setup.

Connection Procedures

Operation Section

Operation Safety Precautions

Essential safety guidelines to follow during machine operation.

Controls, Settings, and Functionality

Operating Modes and Steps

Maintenance Section

Maintenance Safety and General Tasks

Safety warnings and routine tasks like cleaning and inspection.

Theory of Operation Section

Troubleshooting and Repair Section

Using the Troubleshooting Guide

Instructions on how to use the guide to diagnose and resolve issues.

PC Board Diagnostics and Replacement

Specific Test Procedures

Detailed tests for HF circuits, transformers, SCRs, and battery checks.

Waveform Analysis for Diagnostics

Internal Component Replacement Guides