Stator Coil Grounded Test

These tests are made to determine if the stator coil is shorted to ground. Remove the stator from the alternator and disconnect it from the rectifier assembly. Place the ohmmeter Multiply-By setting at 1000.

NOTE: Text values shown in brackets [ ]___ are referenced to Rotunda Model 059-00010 and may be different if another tester is used.

1. Connect the ohmmeter probes to one of the stator lead terminals and to the stator laminated core. Ensure that the probe makes a good electrical connection with the stator core. The meter should show an infinite reading (no needle movement).
2. If the meter does NOT indicate an infinite reading (needle moves), the stator winding is grounded to the core and the stator must be replaced.