Ford 8n 6 Volt Wiring Diagram - glennaxie Ford 8n 6 Volt Wiring Diagram (Aug 02, 2019) - Thank you for stopping by at this website. Here is a wonderful graphic for ford 8n 6 volt wiring diagram have been hunting for this picture throughout net and it came from professional source. Ford Tractor Electrical System Often the generator will maintain correct polarity without doing this step, but occasionally it will need to be polarized to re-establish correct polarity with the tractor wiring. If you have one of the later 6-volt Ford or other tractors, it may have the type "B" system. Look for the regulator terminals to be marked A-F-B.