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F-13

F-13

TROUBLESHOOTING & REPAIR

INPUT CONTACTOR TEST

WARNING

Service and repair should be performed by only 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 elec- trical 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 troubleshoot- ing assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).

DESCRIPTION

This test will determine if the input contactor is receiving the correct coil voltage and if the con- tacts are functioning correctly.

MATERIALS NEEDED

Volt/ohmmeter (Multimeter) 5/16” Nut driver

IDEALARC CV-400 wiring diagrams (See the Electrical Diagrams section of this manual.) External 120VAC supply

IDEALARC CV-400

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Lincoln Electric SVM136-A service manual Input Contactor Test, Description