Checking the generator stator

The stator is checked separately, after removing the rectifier unit.

First of all, check with an ohmmeter or with the help of a test lamp and a battery, if there are any breaks in the stator winding and if its turns are shorted to ground.

The insulation of the winding wires must be free from overheating, which occurs during a short circuit in the diodes of the rectifier unit. Replace a stator with such a damaged winding.

Finally, after disassembling the generator, it is necessary to check with a special flaw detector whether there are short-circuited turns in the stator winding.