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F-22

F-22

TROUBLESHOOTING & REPAIR

MAIN TRANSFORMER (T1) 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 elec- trical shock, please observe all safety notes and precautions detailed throughout this manu- al.

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 216-383-2531 or 1-800-833-9353 (WELD).

TEST DESCRIPTION

This test will determine if the correct voltages are being applied to the primary windings of the main transformer. The secondary windings, the auxiliary windings and the phase angle windings will also be checked.

MATERIALS NEEDED

Volt/ohmmeter (Multimeter)

DC-655 Wiring Diagram

IDEALARC DC-655

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Image 64
Lincoln Electric DC-655 service manual Main Transformer T1 Voltage Test, Test Description