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F-21

TROUBLESHOOTING AND REPAIR

F-21

MAIN TRANSFORMER VOLTAGE 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 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 trou- bleshooting assistance before you proceed. Call 1-888-935-3877.

TEST DESCRIPTION

This test will determine if the correct voltages are being applied to the primary windings of the main transformer and that the voltages from secondary windings, the auxiliary wind- ings and the phase angle windings are correct.

MATERIALS NEEDED

Misc. Hand Tools

Multimeter

Wiring Diagram or Machine Schematic

DC-600

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Lincoln Electric SVM188-A service manual Main Transformer Voltage Test