On a Caterpillar generator I have two diode blocks one Positive and one Negative, from the exciter there are six wires three go to the Positive diode block and three to the Negative diode block then from the rectified side of the diode block there is the Positive and Negative cable that go to the main rotor.
My question is how do you test these diodes? the older style were individual diodes which is straight forward but these are all together in a "block"
The other question I have is if the Positive and Negative cable going from the diodes to the main rotor were not marked because they were eg: burnt how do you find out which is Positive and Negative , what happens if they you got them crossed would you be 180deg out of phase?
Any info would be helpful, thank you.
