Yo Jim, far as I know it was only Fords that used a B charging system, while most all others including Deere n IHC n Oliver n AC n MM used the A. As I know youre well aware the A system controls the charge rate by regulating the gennys field ground resistance while the B system does it on the voltage input to the Field and the Fields are already grounded on their output. To make an A system full charge you would dead ground the gennys FLD post but to full charge a B system you would apply full voltage to the gennys F terminal.........
If youre like me I get things like A or B or B or A mixed up but I learned this years ago when I tried to use a Ford VR on an IHC or Deere (I forget) and after I let the smoke out I taked to an old timer at the genny shop who yelled at me YOU CANT USE A FORD VR EXCEPT N FOR FORDS LOL
I have no idea which Fords used the B system, we would have to venture over to the Ford boards to learn that
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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