Kioti dk50hst with cab electrical issue

[Dave M7040]

If running an alternator, most I have seen have a 2 sets of diodes: 3 in the + circuit....12v output, and 3 in the return - circuit. Reversing the voltage on an alternator via battery connected backwards or putting jumper cables on in reverse order will burn out (short out) in a heartbeat as there is no resistance (to speak of) in the reverse direction to limit current flow for the - diodes. BTDT....not me service station attendant did it.

The diodes I am speaking of in the Kioti wiring diagram are not related to the alternator and neither are they within the alternator or voltage regulator.

The are used to damp out electrical high voltage pulses created when solenoid, relay or contactor coils turn off.

Often referred to as "flyback" diodes.

Here is a simple wiring diagram where one flyback diode was used.

These next photos show more detail about how they are constructed and installed on some machines.

Dave M7040