Section F-1
TROUBLESHOOTING & REPAIR SECTION
Troubleshooting & Repair Section ................................................................................Section F
Troubleshooting Guide ................................................................................................F-4 - F-15
Main Transformer Test ..................................................................................................F-18
Chopper Board Test ......................................................................................................F-20
Control Rectifier Test .....................................................................................................F-23
Current Transducer Test ................................................................................................F-33
Oscilloscope Waveforms......................................................................................................F-38
Motor & Gear Box Removal and Replacement.............................................................F-40
Retest after Repair...............................................................................................................F-59
TABLE OF CONTENTS
POWER MIG 350MP
Section F-1