Table of Contents
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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.
World's Leader in Welding and Cutting Products
22801 St. Clair Ave. Cleveland, Ohio 44117-1199 U.S.A. Tel (216) 481-8100
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IDEALARC DC-600
For use with machines having Code Numbers:
SERVICE MANUAL
Sales and Service through Subsidiaries and Distributors Worldwide
®
9773MSP
9774
9776M
9778M
9779M
9780M
9793MSP
9910M
Premier Manufacturer of Industrial Motors
SVM108-A
August, 1998
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Table of Contents
Troubleshooting
Related Manuals for Lincoln Electric Idealarc DC600 9793MSP
Summarization of Contents
Safety Information
Electric Shock, Arc Rays, Fumes, Gases
Covers primary safety hazards: electric shock, arc rays, fumes, and gases.
Sparks, Cylinders, and Electrical Safety
Addresses risks from sparks, cylinders, and electrical safety measures.
Engine Power and EMF Field Safety
Discusses safety for engine-powered equipment and EMF fields.
French Safety Guidelines
French safety precautions for welding processes and machines.
Installation Procedures
Installation Safety Precautions
Safety warnings and precautions specific to the installation of the machine.
Location, Stacking, and Tilting
Guidelines for choosing location, stacking machines, and preventing tipping.
Electrical Input and Grounding
Details on connecting electrical input power, fuses, wires, and grounding.
Reconnect Procedure
Instructions for reconfiguring the machine for different input voltages.
Output Connections
Guidance on connecting electrode and work leads to the output terminals.
Wire Feeder and Operation Connections
Instructions for connecting wire feeders and for stick/air-carbon arc operation.
Operation Guide
Safety Precautions for Operation
Essential safety warnings related to electric shock, fumes, sparks, and arc rays during operation.
General Description and Capabilities
Overview of the IDEALARC DC-600, recommended processes, and design features.
Operational Features and Controls
Details on standard controls and settings for operating the machine.
Operating Steps and Recommendations
Step-by-step guide for operation, remote control, and welding procedure recommendations.
Wire Feeder Operation Details
Instructions for connecting and operating wire feeders with the IDEALARC DC-600.
Accessories and Connections
Optional Accessories
Lists optional accessories like Multi-Process Switch, Remote Control Box, and Undercarriages.
Multi-Process Switch Installation
Steps for installing the Multi-Process Switch for process selection flexibility.
Wire Feeder Connection Guide
Instructions for connecting various semi-automatic and automatic wire feeders.
Maintenance Procedures
Maintenance Safety Precautions
Safety warnings to be observed before performing any maintenance on the equipment.
Routine and Periodic Maintenance
Guidelines for daily checks and periodic cleaning of machine components.
Theory of Operation
Input Power and Main Transformer
Explains how input voltage, contactor, and main transformer function.
Output, Rectification, and Feedback
Details the output stage, rectification process, and feedback mechanisms.
Protection Devices and Circuits
Describes the machine's protection systems against overloads and temperature.
SCR Operation Principles
Explains the working principle of Silicon Controlled Rectifiers (SCRs) in controlling output.
Troubleshooting and Repair
Using the Troubleshooting Guide
Explains the three-step process for locating and repairing machine malfunctions.
PC Board Troubleshooting Procedures
Procedures for troubleshooting and replacing PC boards, including static precautions.
Troubleshooting Common Output Problems
Guide to common output issues and their recommended solutions.
Component Testing Procedures
Detailed tests for transformers, firing boards, control boards, and SCRs.
Waveform Analysis for Diagnostics
Typical and abnormal DC output voltage waveforms for diagnostic purposes.
Component Replacement Procedures
Steps for replacing components like input contactors and SCR bridge assemblies.
Electrical Diagrams
Control Board Layout and Schematics
Diagrams showing the layout and schematic of the control PC board.
Firing Board Layout and Schematics
Diagrams showing the layout and schematic of the firing PC board.
Wiring Diagrams and Schematics
Wiring diagrams for various machine codes and overall schematics.
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