Lincoln Electric SQUARE WAVE TIG 275 IM609-B User Manual

Square Wave TIG 275
OPERATOR’S MANUAL
IM609-B
May, 2001
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
READING THIS MANUAL AND
THE SAFETY PRECAUTIONS
CONTAINED THROUGHOUT.
And, most importantly, think before
you act and be careful.
For use with machines having Code Numbers:
10523,
10524,
10525,
10605,
10738
• 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 •
Date of Purchase:
Serial Number:
Code Number:
Model:
Where Purchased:
Copyright © 2001 Lincoln Global Inc.

Lincoln Electric SQUARE WAVE TIG 275 IM609-B Specifications

General

Output Current Range (TIG)	5-275A
Open Circuit Voltage	80V
Processes	TIG, Stick
TIG Welding Capability	Yes
Stick Welding Capability	Yes
Input Frequency	60 Hz
AC Frequency Range	20-150 Hz
Rated Output	275A

Summary

Safety

California Proposition 65 Warnings

Warnings regarding engine exhaust chemicals known to cause cancer.

Arc Welding Hazards

General hazards of arc welding, including injury or death risks.

Electric and Magnetic Fields

Electric Shock Precautions

Hazards and precautions related to electric shock during welding.

Arc Rays Safety

Protection against arc rays and spatter to prevent burns.

Fumes and Gases Dangers

Dangers of welding fumes and gases and ventilation requirements.

Welding Sparks and Explosion Hazards

Cylinder Safety Precautions

Installation

Technical Specifications

Detailed electrical and physical specifications for the welding machine.

Installation Safety and Site Selection

Essential safety guidelines and site selection for welder installation.

Handling and Environmental Considerations

Grounding and High Frequency Interference

Proper grounding and managing HF interference for safe operation.

Supply Connections

Instructions for connecting the welder to the power supply.

Input Reconnect Procedure

Steps to change the welder's input voltage connection.

Output Connections

Guidelines for connecting output cables for welding.

Work Cable Connection

TIG Torch Connection

Stick Electrode Cable Connection

Operation

Operating Safety Precautions

Critical safety guidelines before operating the machine.

Controls and Settings

Detailed explanation of each control and setting on the machine.

TIG Welding Guidelines

2-Step TIG Welding Sequence

4-Step TIG Welding Sequence

AC Wave Balance and Auto Balance

Stick Welding Operation

Accessories

Maintenance

Maintenance Safety Precautions

Overload Protection and Fan Operation

Service Procedures

Spark Gap Adjustment

Troubleshooting

General Machine Troubles: Power and Output

Common problems related to power, output, and control panel display.

Meter and Auxiliary Receptacle Issues

Overheating and Duty Cycle Issues

Noise, High Frequency, and Stick Welding Issues

TIG Welding Response and Gas/Water Flow

Troubleshooting machine response, gas, and water flow in TIG mode.

High Frequency and Output Interruption

Diagnosing weak high frequency and momentary output interruptions.

PC Board Troubleshooting

General steps and specific checks for PC board issues.

Wiring Diagrams