|
Farmall & IHC Tractors Discussion Board |
Re: Generator Pegs Ammeter!!
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by Bob M on January 05, 2007 at 09:56:52 from (151.190.254.108):
In Reply to: Generator Pegs Ammeter!! posted by chadd on January 05, 2007 at 09:01:17:
OK – kinda working backward thru your problem here’s what I think. (I’m presuming the wiring is all correct, the regulator has a good ground, etc...): 1 – The 30 amp discharge after shutdown with the old regulator says the regulator’s cutout contacts are not opening. The regulator is indeed no good – throw it away! 2 – The 30 amp discharge with the new regulator and the engine running says the generator is providing current, but that the generator polarity is reversed. Are you certain you are polarizing correctly? (With all wiring and the battery connected, and everything shut off, momentarily jumper the BAT and GEN terminals at the regulator. You should see a small spark when the jumper makes contact – as soon as you do the generator is polarized….) 3 – The fact the generator/regulator work OK on the test machine when negatively grounded says both parts are functional. But why the guy at the repair shop says it only works on positive grounded is a bit puzzling. (On the test stand and when properly polarized, a generator/regulator SHOULD work equally well both negative and positive ground .) I figure either the repair shop guy doesn’t know what he’s doing, or possibly the new regulator has a diode in place of the traditional mechanical cutout relay, and the diode is arranged for negative ground. Ie. the regulator works only grounded negative. (If this is true the regulator is should be clearly marked “NEGATIVE GROUND ONLY” or similar) ---- Probably your quickest/cheapest solution is to simply reverse the ground polarity on your tractor. All you need do is swap the connections at the ammeter, then reverse the battery cables. (If you are a purist you can also swap the primary connections at the coil but it’s not really necessary) Good luck, and post back what you find!
Replies:
Home
| Forums
Today's Featured Article -
An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
... [Read Article]
Latest Ad:
Variable pulley for case 1530 skid loader
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co.
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. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|
