T1 Main Transformer Test - Lincoln Electric SQUARE WAVE SVM141-A Service Manual

F-20
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).
TEST DESCRIPTION
This test will determine if the correct voltage is being applied to the primary of the T1 trans-
former and also if the correct voltages are being induced on the secondary windings of the
transformer.
MATERIALS NEEDED
Volt/Ohmmeter (Multimeter)
TIG 275 Wiring Diagrams
3/8" Nut driver
TROUBLESHOOTING & REPAIR

T1 MAIN TRANSFORMER TEST

WARNING
This procedure takes approximately 15 minutes to perform.
SQUARE WAVE TIG 275
F-20