This is the problem I had (in my estimation) with my 4230 JD that I thought was a really poor example of JD engineering. I bought the tractor, built in '79 in '04 and it had a 6 volt battery on each side of the tractor wired in series to develop 12v for the 12v system.
Problem with that setup is that the internal resistance of both batteries was in series with the starter. Therefore, when my 6v batteries started pushing current through my 12v starter, it didn't get 12v, rather 12v - the voltage drops on both batteries which could easily be 1 volt each even though it only took .005 ohms to drop that voltage at the 200 more or less amps it took to spin the diesel.
I had to replace batteries so I bought 2ea 12v replacement batteries (rather than 2ea 6v batteries) and wired them in parallel (+,+....-,-)
Now if my new batteries were to have the same .005 ohms internal resistance, the resistance is now in parallel, halving the current flowing through each resistance and the 2v drop now becomes 0.5 volts and my starter now gets 11.5 volts. Much easier to start when the tractor has been sitting and the batteries could be low on charge.
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 - On the Road with Dave Gohl: Auction Musings - by Dave Gohl. I was thinking the other day about all the auctions I've been to in the last few years. There've been many. Some have been very good, some have been well, disappointing to say the least. But no matter how good or bad auctions may be, we always seem to stay until the item we've come for or are interested in is on the block. I've been to some auctions near and far. I think the furthest has been the Two Cylinder 7 in the Amana Colonies last year. Lots of stuff, lots of people. I've also atten
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.
