Output bridge rectifier test, F-19, Output bridge – Lincoln Electric POWER MIG SVM157-A User Manual
Page 53: Rectifier test, The output bridge rectifier, Test, Troubleshooting and repair, Warning
TROUBLESHOOTING AND REPAIR
F-19
F-19
POWER MIG 200
OUTPUT BRIDGE RECTIFIER TEST
Service and repair should only be performed by 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 technical troubleshooting assistance before you proceed. Call 1-800-833-
9353(WELD).
WARNING
This procedure takes approximately 20 minutes to perform.
TEST DESCRIPTION
This test will determine if a diode is “shorted” or “leaky”. See the machine waveform
section in this manual for normal and abnormal output wave forms.
MATERIALS NEEDED
Analog Volt-ohmmeter or Diode Tester
3/8” Nutdriver
1/2” Nutdriver