Topic: Re: 8N Charing System|
[Show Entire Topic] [Return to Forum]
[Show Entire Topic]
[Return to Forum]
[Add a Reply]
Quoting Removed, click Modern View to seeWild ammeter needle: the needle on my Farmall has done this ever since I had it ( 27 years) and all is well. Why does it do it? To my way of thinking, it is either a too sensitive VR that had inadequate hysteresis such that it is constantly turning field on/off/on OR the current sensing portion of the regulator senses generator overload & cuts back & then the overload is of course gone & then it turns back on & the cycle repeats itself. If it is the latter, and I believe it is in my Farmall) then you can steady the ammeter by slowing the engine to keep a very slightly positive ammeter reading, i.e., low charging current & no over current. I have, in my infinite curiosity, installed two jumpers, generator field to ground AND generator armature to battery with engine running and ammeter needle settles. This tells me that the ammeter wiggle is related to the unstable field control of the VR or the on/off current control function of the VR or both, since with these jumpers the regulator is out of the circuit & is set to maximum output. I satisfied my curiosity & removed the jumpers and it continues to flail about wildly & continues to keep the battery charged just as it always has done. Further, if you run the tractor all day, by the end of the day the battery should be charged enough to prevent over current & steady the meter or the VR is set so high the the battery will be boiling electrolyte.
|Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a Company you can trust and have generous return policies! Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]|
| Copyright © 1997-2013 Yesterday's Tractor Co.|
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.
Yesterday's Tractors - Antique Tractor Headquarters
|About this site - Yesterday's Tractors is your one-stop source for antique tractors. If you are interested in older tractors you've come to the right place! Join more than 275,000 other classic tractor enthusiasts from all over the globe. We have many resources for antique tractor enthusiasts available including photos, classified ads, more than 24 tractor discussion forums, a show guide, values, specs and much more. Bookmark this site and come back often. Thanks for stopping by! Feel free to use our feedback form to send us your comments, suggestions and ideas.|