1971 4020 Diesel PS has 2 finger steering during normal driving down the field as you make normal corrections. When turning around on headlands, if you steer fairly slow it is still 2 fingers. But the faster you try to turn the wheel, the harder it is to turn, as if there is less power assist. Equal resistance both directions. Any ideas for troubleshooting this??
- Thread starter Scott 730
- Start date
What have you done to troubleshoot the issue?
Do you see leaks at steering motor, steering valve, hydraulic pump?
Could be valve adjustment issue but if no work was done recently on steering valve I would suspect pressure issue since it is occurring in both directions.
When was last time you serviced hydraulic system, fluid, filters, and screen?
Do you see leaks at steering motor, steering valve, hydraulic pump?
Could be valve adjustment issue but if no work was done recently on steering valve I would suspect pressure issue since it is occurring in both directions.
When was last time you serviced hydraulic system, fluid, filters, and screen?
Tractor came to me as a non running project after sitting for 8 years on a cattle ranch. Previous owner is long gone, no one to ask questions to about previous service. Filters and screen were clean 5 years ago when I got it. Fresh Mobil 424 oil and filters again last fall as part of doing load shaft seals. No leaks in steering system.
That's impressive that there are no hydraulic leaks. I haven't had that luck with a single new gen over the past 35 years.
You can start testing pressure to validate hydraulic pump.
Then you can start testing the steering motor and valve.
Assuming you have already lifted front end and checked wheel bearing and tie rod ends.
You can start testing pressure to validate hydraulic pump.
Then you can start testing the steering motor and valve.
Assuming you have already lifted front end and checked wheel bearing and tie rod ends.
Similar threads
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.
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 Headquarters
Website Accessibility Policy