This problem has been going on for several hundred hours. We change the oil and filter every season. We run over eight hundred acres a year through this machine. The hyrostat system and the hydraulic system are two completly seperate systems so it is not starving for oil. When we have the most problem is when we are combining in second gear,high rpm. It does it only when there is no pull on the machine such as going down hill or turning around. It will try to hold itself back then it puts forward pressure on the system again. This is not a big jerk it is just the slack between being under load and trying to hold itself back. It will do this 2-3 times before it "pops" free and it is free wheeling. The machine will coast to a complete stop and sit there for a short period of time then all of a sudden slam back to the speed that you was running or wherever the hydrostat lever is. We have always thought that it might be sucking air allowing itself to suck the oil out of the hydrostat pump and then when it reprimes itself which would give us the big jerk. We have never found any leaks though. We have been looking for a vaccum leak and havent found it and there is absolutly no oil leaks on it anywhere. We are wondering if there could be a high pressure valve that is messing up since it happens more at high rpm. We have all the books for this machine, operaters, service, and parts, except for the one that goes into detail about the hydrostat which we would like to have if anyone knows what number the book is.
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 - Good As New - by Bill Goodwin. In the summer of 1995, my father, Russ Goodwin, and I acquired the 1945 Farmall B that my grandfather used as an overseer on a farm in Waynesboro, Georgia. After my grandfather’s death in 1955, J.P. Rollins, son of the landowner, used the tractor. In the winter 1985, while in his possession the engine block cracked and was unrepairable. He had told my father
... [Read Article]
Latest Ad:
2022 John Deere 5045E, 4wd, front end loader and 3rd function with grapple. 120 hrs, 55k new, must sell
[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.
