Control trans, Former test, Troubleshooting & repair – Lincoln Electric COMMANDER SVM145-B User Manual
Page 103: Warning control transformer test
TROUBLESHOOTING & REPAIR
F-47
F-47
COMMANDER 300
WARNING
CONTROL TRANSFORMER TEST
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 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine that if the correct voltage (115VAC) is applied to the primary of the
control transformer, the correct voltages are induced on the secondary windings of the
transformer.
MATERIALS NEEDED
Volt/Ohmmeter
Wiring diagram
Isolated 115VAC supply
3/8" wrench
This procedure should take approximately 20 minutes to perform.