Welcome! Please use the navigational links to explore our website.
Company Logo (800) 853-2651 Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Case Tractors Discussion Forum

530 Generator / Regulator issue

Welcome Guest, Log in or Register
Joe Young

05-06-2006 18:52:36

Report to Moderator

The tractor in question is a 1965 541 with a negative ground system. It has a Prestolite generator, which I just had overhauled. The repair shop also sold me a new regulator (at my request) and said they polarized it.

I got the tractor running today for the first time, and the GEN light remains lit at all throttle settings. The tractor does not have a load meter or ammeter.

How should I proceed troubleshooting this one? I am fine with all things mechanical, but must admit, electrical systems and electrical issues are “Greek” to me. Any guidance or suggestions would be greatly appreciated. – Joe

[Log in to Reply]   [No Email]
Tom (Ks)

05-06-2006 20:25:16

Report to Moderator
 Re: 530 Generator / Regulator issue in reply to Joe Young, 05-06-2006 18:52:36  
With the enging off, touch a wire from the B terminal (or battery) to the A terminal (GEN). You should see a spark when you do this. This should polarize the generator.

[Log in to Reply]  [No Email]
Phil (Nj,Az, Sask)

05-07-2006 19:11:08

Report to Moderator
 Re: 530 Generator / Regulator issue in reply to Tom (Ks), 05-06-2006 20:25:16  
Joe, Make sure you have a good ground from the REg to the mounting bracket and bracket to frame.

Hope this Helps,

[Log in to Reply]  [No Email]
Joe Young

05-07-2006 17:07:25

Report to Moderator
 Re: 530 Generator / Regulator issue in reply to Tom (Ks), 05-06-2006 20:25:16  
Thanks for the reply Tom. I will give that a try - Joe

[Log in to Reply]  [No Email]
Mike in MI

05-06-2006 19:22:52

Report to Moderator
 Re: 530 Generator / Regulator issue in reply to Joe Young, 05-06-2006 18:52:36  
I have a 530 also 1966 model I remember dad having the generator redone and a new voltage regulator. It has the idiot light on it. Thats what I call it anways.
If I can remeber correctly dad was having the same problem.
I can remember him taking the cover off the regulator. He tryed polarizing it but it didn"t seem to work. He tried to do everything he could think of to get the light to go out. He went to turn the head lights on and that did the trick.
Not sure if this will help your situation but worth a try. I"m sure someone will jump in here and give you some good advice on what to do.
Good luck, Mike

[Log in to Reply]  [No Email]
Joe Young

05-07-2006 17:06:26

Report to Moderator
 Re: 530 Generator / Regulator issue in reply to Mike in MI, 05-06-2006 19:22:52  
Thanks for the idea Mike. I turned the lights on several times checking out the electrical system... - Joe

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

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 ]

Home  |  Forums

Today's Featured Article - What Price Enthusiasm? - by Anthony West. Quite frankly, for some time now restorers like myself have become more and more concerned about the rapid increase in the prices of old farm machines here in England. There is now a growing market for "As found" machines. Which as machines get rarer, has found the birth of a new industry....one of the "procurement agent". These agents appropriate as much old machinery as possible then inflate prices at auctions. So at what price enthiusiasm? We are now seeing poor machines which 3 years ago ma ... [Read Article]

Latest Ad: 4- D6 cat dozers and accessories [More Ads]

Copyright © 1997-2022 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy