TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Ford 9N, 2N & 8N Discussion Forum

Voltage regulator woes resolved

Welcome Guest, Log in or Register

Author

Rob N VA

09-14-2005 18:51:41

Report to Moderator

First off, thank you Dell! I tried and tried to polarize the old V.R. and finally gave up and replaced it. Problem solved. I took the cover off the old VR and I don't see anything that looks out of place, or burned. The contact points are smooth and freely moving. I am gonna ask a loaded question; how do these things work exactly? What is the difference between "Batt" "Arm" and "Field"? and what else could have gone wrong inside this thing? I am trying to understand the electrics here. Feel free to tell it to me like I am a 2 year old. Thanks again for all you help!
--Rob

[Log in to Reply] [No Email]

Rob

09-15-2005 03:29:04

Report to Moderator

Re: Voltage regulator woes resolved in reply to Rob N VA, 09-14-2005 18:51:41

There is a good explanation in the FO-4 at paragraphs 66 & 67. It will teach you how to set it up to the voltages you want.

[Log in to Reply] [No Email]

Dell (WA)

09-14-2005 22:15:19

Report to Moderator

Re: Voltage regulator woes resolved in reply to Rob N VA, 09-14-2005 18:51:41

Rob..... ...theres just TOO-MUCH to school you on how a voltage regulator works for the N-Board. Jim Cox, an occasional contributor and professional generator rebuilder had a very excellent web-page on voltage regulator theory. Do a N-Board search.

The BATT & ARM terminals are part of the internal cutt-outt relay scheme that disconnects the genny from the battery when the engine stops so you don't drain the battery overnite. And conversely, the cutt-outt relay connects the genny to charge the battery when the engine is turning the genny. The cutt-outt relay MUST BE POLARIZED to match yer battery polarity and genny volts polarity.

The genny field is a DC electo-magnet whose strength is varried by a vibrating voltage sensing relay. The strength of the magnetic field governs the genny AMPS OUTPUT which charges the battery.

Ford also uses a seperate ground wire to provide "zero-volts" ground difference between the voltage regulator and the generator. Alotta gennys/VR's depend upon engine iron to provide the common ground and neglect the effect of rusty joints on voltage drops. Ford's ground wire doesn't.

As to yer voltage regulator problem, NOTICE the cutt-outt relay is 2-seperate wire coils and I would suspect that the finewire coil is OPEN..... ...Dell

[Log in to Reply] [No Email]

Rob N VA

09-15-2005 02:58:21

Report to Moderator

Re: Voltage regulator woes resolved in reply to Dell (WA), 09-14-2005 22:15:19

Thanks a lot Dell, that clears up alot of the mystery. I appreciate you taking the time to answer some of my questions. ---Rob

[Log in to Reply] [No Email]

[Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

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 ]

Home | Forums

Copyright © 1997-2023 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