Posted by JMOR on August 08, 2009 at 08:03:01 from (72.181.157.9):
In Reply to: Ammeter vibrates posted by Bob M on August 06, 2009 at 20:24:16:
spiffy1 said: (quoted from post at 15:00:50 08/07/09) Brushes weren't too bad, but definitely trailing some crap, so cleaned up. Helped little if at all.
Took cover off regulator: throwing an arc between the relay [above the field connection] contacts. Cleaned up both relays with isopropyl on computer paper - no change.
Almost like it needs a capacitor, but then I never did find a good place to put that extra resistor either.
Still perplexed here! :?
I might be wrong here, but I doubt that the resistor belongs between Field & ground. One ohm in this position would cause the generator to output about a quarter to one-half its rated output (depending of specific field coils) at all times, thus rendering the regulator function pretty much useless. Still offer a little control in the upper end of range, but most likely still overcharge the battery.
Where does the resistor go, I do not know. Here is a bit of speculation:
My 6v gen experience tells me that thee are two large groupings of 6v field coils, one around 1.5 ohms & the other around 3 ohms. If the resistor were placed in series (one end to reg fld terminal & other to gen fld terminal, then the result would be smaller fld current both when VR contacts closed & when open, thus a smaller swing between max & min charge. If the reg is designed for a 3 ohm gen, then perhaps the resistor is necessary for a 1.5 ohm gen? Like I said, speculation, but it cost very little to try. Hopefully, someone can top speculation with hard fact.
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 - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
... [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.
