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F-17 F-17
TROUBLESHOOTING & REPAIR
MULTI-SOURCE
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MAIN TRANSFORMER (T1) VOLTAGE TEST
WARNING
Service and repair should be performed only by Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment could result in danger to the technician or the
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
tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting
assistance before you proceed. Call (800) 833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the correct voltages are being:
a. applied to the primary windings of the Main Transformer (T1).
b. induced on the secondary windings, fan winding, and phase angle windings.
MATERIALS NEEDED
Volt/Ohm Meter
MULTI-SOURCE wiring diagrams (See Electrical Diagram Section of Manual).
3/8” Nut Driver
This procedure takes approximately 45 minutes to perform.