Lincoln Electric PRO-CUT 55 SVM140-A User Manual
Pro-cut, Svm140-a, Service manual
SVM140-A
July, 2005
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.
For use with machine code numbers Below 11000
PRO-CUT
™
55
SERVICE MANUAL
• 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 © 2005 Lincoln Global Inc.
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Document Outline
- Master Table of Contents
- 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 when the sheet metal cover(s) are removed.
- Machine is dead – no output – no fan – no status indicator lights.
- Machine is dead - not output - no status indicator lights - fans run.
- All status indicators remain immediately after power up.
- All the status lights begin to blink within 5 seconds of power up.
- The machine powers up properly, but there is no response when the gun trigger is pulled. Only the power LED is lit.
- When the torch trigger is pulled, air begins to flow; but no pilot arc is established.
- The air begins to flow when the torch trigger is pulled. There is a very brief pilot arc. (Normal is 3 seconds.) The sequence is repeated with subsequent trigger pulls.
- The cutting arc starts but sputters badly.
- Nuisance safety trips
- The pilot arc is normal, but the arc will not transfer to the workpiece.
- The Air Low LED is lit.
- The Safety LED is flashing.
- The Safety LED is lit and ready.
- The Thermal LED is lit.
- section G - Electrical Diagrams