Posted by Owen Aaland on October 31, 2009 at 17:29:24 from (207.13.114.170):
In Reply to: ammeter needle bouncing posted by matt from WI on October 31, 2009 at 06:01:21:
The things that JimN suggested may take care of the problem or the bouncing needle may also be normal for your setup. The original ammeters were only 20 amp gauges. The alternator you installed is probably in the neighborhood of 60 to 75 amps. The regulator in the alternator does not hold a steady voltage but rather is always changing the field current from too high a voltage to too low and then back to too high. It keeps repeating this cycle. This slight variation in voltage causes the amperage output to be constantly changing. It may only vary an amp or two but it happens rapidly. The higher amperage output of the alternator and lower the capacity of the ammeter the more likely you are to see the needle movement.
Putting a capacitor across the terminals of the ammeter would serve as a dampener and should eliminate the bouncing needle. I don't know enough about electricity to know was size capacitor to suggest.
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 - Converting from 6 Volt to 12 Volt - by Chris Pratt. It's a common problem for old machines especially when the weather starts to dip below 40 and the tractor isn't fired up as often. You are probably used to the 12 volt Diehard, charged with 200 amp alternator of your 3/4 ton that always is ready and always starts. It's this type of experience that brings about the many queries we get for 12-volt conversion kits. Since only a few kits are available (we sell kits for the
... [Read Article]
Latest Ad:
Late 50s early 60s international harvester 560 with cultivator
[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.
