Posted by jdemaris on September 26, 2008 at 06:43:22 from (67.142.130.36):
In Reply to: Re: Not really . . . posted by Joe(TX) on September 26, 2008 at 05:43:24:
There is no such thing as a standard "closed center" pump. There are many variations. Any pump can be closed center if there is a way to shut it off when a function is not being used.
Piston pumps in general cannot feed themselves with oil, i.e. no suction. Even hydrostatic pumps use extra charge pumps.
In regard to the pump you are talking about? Kind of hard to comment since you don't give any specifics.
All John Deere closed-center piston pumps require addtional charge pumps to keep them supplied with oil - they cannot draw oil on their own. Same goes for many Massey Ferguson systems.
Again, as to your tractors? I have no idea what you have.
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 Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
... [Read Article]
Latest Ad:
one 8n and one 9n tractor. totaly restored,pretty much everything is new. one 6ft blade good shape.
[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.
