If it is like the '06 series (like my 504) the valve(s) are on the right hand side, under the seat. These valves have a "float" position all the way forward. You may not notice this because the detent balls, spring, and unlatching piston are stuck from rust and corrosion. These parts are not in oil and are behind the "pipe nipple" screwed into the rear of the valve.
I rebuilt my valves and now they will lock in the rear, forward, and float positions. When I am using my loader and want to apply down pressure, I have to be careful. There is a VERY short throw on these valves and sometimes I hit float and loose PSI.
Try this; push the lever forward a small bit and watch the gauge, then a little more, then a little more. You should see the PSI load up then drop while preforming this exercise. If it is stalling, the relief may be sticking or the check ball in the valve is stuck.
If I can be of further help, email is always open. I learned a lot during the rebuild of these valves. I have two more I plan to rebuild a sell at a later date.
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 - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
... [Read Article]
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.