[fourfords]

I'm surprised no one volunteered exactly HOW to adjust the third brush. Standing on the drivers side of the car, remove the band around the generator. I take a small wooden dowel and gently tap the third brush DOWN a bit to raise the voltage output. Gently tap it up to decrease the voltage. If you have a six volt system with no other accessories, and after you make your estimated adjustment, start your car and look at the ammeter. When it is flat at zero when you have your headlights on, you are Good to go. Don't forget to apply a couple drops of oil to the oil ports on the top front and rear of the generator every once in a while.