Posted by John T on May 03, 2008 at 10:26:44 from (66.244.97.31):
In Reply to: Voltage regulator posted by PeterM on May 03, 2008 at 08:07:25:
I'm more familiar with Mother Deere products but on those the early VR's used on 3 brush gennys had, in addition to the cutout relay/coil, the other (they used 2 coil VR's, NOT 3 coil) relay was a combination Voltage/Current controller but on the later 2 brush gennys that other relay only controlled Voltage, which, obviously still affected current. Bottom line you need the correct VR to match the genny which appears even more important on the older 3 brush units. Im NOT saying one or the other couldnt be made to work if the air gaps and spring tensions affecting cut in and cut out voltages were adjusted and theres an outside chance (even if slim) the VR might allow more genny field current then its supposed to have.
Sorry this isnt any exact answer you may be looking for but it may help understand whats going on. On some tractors the 3 brush gennys only used a cutout relay while the 2 brush used VR's but on Deere they began use of a VR with the 3 brush, maybe it was to get rid of the older gennys in stock???
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 ]
Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [Read Article]
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.
