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SVM7007 TROUBLESHOOTING AND REPAIR E‐11
Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs
performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory
warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed
throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact
the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. CALL 400 820 9755
DESCRIPTION
This test will help determine if the Input Rectifier is functioning correctly.
MATERIALS NEEDED
8mm
Wrench
Multimeter
Wiring Diagram
PROCEDURE
1. Remove the input power to the OPITIMARC® CV/CC500 machine.
2. Perform the Case Cover Removal Procedure, remove the case top.
WARNING
3. Locate the Input Rectifier. See figure E.6. Using an 8mm wrench, remove output leads 207# and 209# from the Input
Rectifier.
4. Perform the diode checks per Table E.1. If the measured value deviates greatly from the expected value, the Input
Rectifier may be faulty. Perform the Input Rectifier Removal and replace it.
Note: The Input Switch and Switchboard should be checked before replace the Input Rectifier.
INPUT RECTIFIER TEST
WARNING
ELECTRIC SHOCK can kill！
Wait until the Switchboard is fully discharged.
®
OPTIMARC
CV/CC500
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