Lincoln Electric IDEALARC R3R-500 User Manual
Idealarc, Svm139-a, Service manual
SVM139-A
June 1998
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
World’s Leader in Welding and Cutting Products Premier Manufacturer of Industrial Motors
Sales and Service through subsidiaries and Distributors Worldwide
22801 St. Clair Ave. Cleveland, Ohio 44117-1199 U.S.A. Tel. (216) 481-8100
For use with machine code numbers 9534, 9537, 9874 and 9884
IDEALARC
®
R3R-300, -400 and -500
RETURN TO MAIN INDEX
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 & Repair
- Symptoms
- Major physical or electrical dam-age is evident when the sheet metal cover(s) are removed.
- Machine is dead – no output – no fan – no pilot light.
- The machine is dead - not output -no fan - the pilot light is on. The amber temperature light is NOT on.
- The machine is dead – no output – no fan. The input contactor does not operate. The amber thermal...
- The input contactor (CR1) chatters.
- The machine has high welding output and no control.
- The machine has minimum (or very low) welding output and no control.
- The input contactor operates - the fan runs - the pilot light is on - but the machine has no welding output.
- The machine does not have maximum output.
- The machine will not shut off when the power switch is put in the OFF position.
- The output terminals are always electrically “hot.”
- The machine welds but reduces to a low output under load and remains there until the load is...
- The machine shuts off even when not under load or makes excessive noise like it is loaded.
- Poor arc characteristics.
- The welding arc is variable and sluggish.
- Section G - Electrical Diagrams