Lincoln Electric IDEALARC DC-655 User Manual
Idealarc, Dc-655, Svm142-a
SVM142-A
September, 2002
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 machine code number 10501 thru 10510
IDEALARC
™
DC-655
RETURN TO MAIN INDEX
• 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 •
Copyright © 2002 Lincoln Global Inc.
Document Outline
- Master TOC
- Safety
- Section A Installation
- Section B Operation
- Section C Accessories
- Section D Maintenance
- Section E Theory of Operation
- Section F Troubleshooting and Repair
- Symptoms
- Major physical or electrical damage is evident.
- The machine is dead - the input contactor does not operate. The pilot light is not lit.
- The input contactor operates, but no welding output. The 115 VAC auxiliary supply is present at the receptacle.
- The input contactor chatters.
- The machine is dead - the input contactor does not operate. The pilot light is lit.
- The machine has welding output but no control.
- The machine does not have maximum output.
- The 115 VAC receptacle is not working. The machine’s welding output is normal.
- When not welding for a period of time, the machine shuts down.
- The output control potentiometer does not function when the output control switch (SW3) is in the...
- The remote output control unit does not function properly when the output control switch (SW3) is...
- The Thermal Protection Light is on but the fan does not run.
- The fan runs continuously.
- One or both of the optional digital meters are not lit.
- The optional digital meter is not working properly and/or the display is erratic.
- The analog meters are not reading correctly.
- Poor arc characteristics in all processes.
- Poor arc striking with semiautomatic or automatic wire feeders.
- The arc is variable or sluggish.
- The Arc Force Control (R4) has no effect on the arc.
- Section G - Electrical Diagrams