Generator Problems '45 Farmall A

Posted by thynes on October 08, 2005 at 14:09:53 from (66.189.90.38):

I have a '45 Farmall A with messed up non-original wires. When I got the tractor the charging system did not work, and the wires were a cobbled up mess. Since they were goofed with, I don't have any confidence that the wires are correct.

I believe that I have a cutout relay, as it only has one coil. It has 3 terminals: gen, F, and Bat. I have found several wiring diagrams to help me out, but I still have some questions.

Question 1: On the cutout relay do I connect the "F" terminal to anything? The schematics I have show this with no connection. Inside the cutout relay the "F" terminal is connected to a resisitor. This resistor is connected to the ground of the cutout relay. It seems this "F" terminal is a redundant equilavent of the field resistor in the switch box, is this corrct? If that is correct then do I leave the "F" terminal unused?

Question 2: I had the tractor running for a while with nothing connected to the generator and noticed it was hot. I checked for voltage at, I think at the "A" terminal, and it was putting out voltage. When I reved the engine to full speed, the voltage went to about 30 volts. This voltage promptly burned out my 12v test bulb! Is this normal, or is there an internal short in the generator that is allowing output with no wires attached?

Regards,
Tim

Follow Ups:

• Re: Generator Problems '45 Farmall A Jim Becker 19:28:38 10/08/05 (4)
  • Re: Generator Problems '45 Farmall A John T 20:44:39 10/08/05 (1)
    • Re: Generator Problems '45 Farmall A Jim Becker 11:27:52 10/09/05 (0)
  • Re: Generator Problems '45 Farmall A thynes 20:11:50 10/08/05 (1)
    • Re: Generator Problems '45 Farmall A Jim Becker 11:34:18 10/09/05 (0)
• Re: Generator Problems '45 Farmall A John T 16:22:39 10/08/05 (0)

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]