Lincoln Electric SVM103-C User Manual

Troubleshooting & Repair Section .................................................................................Section F

Test Procedures

Rotor Voltage Test.........................................................................................................F-11
Rotor Resistance Test ...................................................................................................F-13
Engine Throttle Adjustment Test ...................................................................................F-16

Oscilloscope Waveforms

Normal Open Circuit Weld Voltage Waveform ..............................................................F-19
Normal Open Circuit Weld Voltage Waveform (115 VAC Supply).................................F-20
Typical Weld Output Waveform - Machine Loaded ......................................................F-21

Replacement Procedures

Brush Removal and Replacement.................................................................................F-22
Rheostat Removal and  Replacement...........................................................................F-25
Capacitor and Diode Bridge Removal and Replacement .............................................F-27
Stator/Rotor Removal and Replacement (Kit S20925)..................................................F-30