Posted by karl f on June 02, 2010 at 12:39:42 from (209.188.106.159):
I completed converting our 400 to 12v w/ alternator. Had new brackets fabricated so it fits under the hood and uses the original belt.
The first alternator was a used freebie. would not charge. It had worked on the bench tester prior to my project but it did get rained on on accident.
the second alternator is store purchased but will not begin to charge until 3 notches from wide open on the throttle (around 1000 rpm). Even if you try to excite it with a jumper wire. once excited, it charges at all engine speeds.
I've double checked my wiring and it's correct. I thought the sealed warning lamp (not LED) was the culprit but the lack of excitement with a jumper wire seems to elminate that possibility. It's acting like a one wire!
The only other factor i can think of is the pulley size/alternator rpm. I am using a bigger pulley than a car. but it is smaller than the original adjustable generator pulley. i'll have to measure.
I assumed with the warning light setup that the alternator would become excited when energized regardless of rpm. Anyone else run into this before?
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 - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
... [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.
