(800) 853-2651
SHOP NOW

Hydraulic bucket leak down revisited.

T

TimWafer

Member
Returning to the problem I started in the thread below.

For the sake of argument at the moment lets assume the problem lies in the valve. Here is a diagram I found of the valve. I'm wondering the exact function of the #10 CHECK PLUGS. Im not clear how this system works and thought the problem might be with one of those but not sure. Any thoughts? Mine actually has three valves ( one additional for accessories) but in this photo the problem would be in the left one without the detent.

14120.jpg
 
I'm not sure of the check valve function, but looks like they would be easy to remove and inspect.

Or, switch them side for side, see if the problem goes to the lift cylinders.

Did you try moving the handle with the engine off to see if it will hold?

If it will, could be a problem with 24, or 27 loose.
 
Im planning on working on it tonight.

I was going to pull the check plugs out and switch them around but will have to remove some stuff to gain access.

I will try moving the pedal with the engine off as you suggest first. My gut feeling is that wont work as Ive tried holding the pedal at different positions while running. it never seemed to help until you moved the spool enough to hear the relief valve start to squeal.
 
The #10 checks should be cross port check valves. When the engine is off and you move the controls, nothing should move. You need to have hydraulic pressure to open the check on the opposite line so the return
oil can pass back through the valve. They serve to keep the boom from dropping before lifting when you slowly shift the valve, also keep the cylinders from dropping uncontrolled by gravity when you activate
lower/dump. I would swap with the check plugs from your accessory valve, as they are likely used very little.
 
You must log in or register to reply here.

Similar threads

M
Case 190 hydraulic
Replies
2
Views
234
MaxTrac
M
7
No down pressure for loader bucket now???
Replies
5
Views
568
706man
7
J
Trouble with loader hydraulic valve
Replies
5
Views
246
Brown David
Brown David
D
Tw-5 Hydraulic pressure.
2
Replies
23
Views
1K
Daniel in PA
D
K
Ford 800/900 Hydraulic Remote - Auxiliary Port
Replies
8
Views
628
KJMClark
K
Tractor Parts Tractor Manuals

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

Back
Top