Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Harry Ferguson Tractors Discussion Forum
Show Parts for Model:

Re: Lift cylinder question

[Show Entire Topic]  

Welcome Guest, Log in or Register
Author  [Modern View]
John (UK)

08-05-2012 08:43:09

Report to Moderator

If it is from AGCO it is the same spec as the original ones. I do prefer the Piston Ring type, they stand a lot more wear and tear. The fact that they do leak is a good thing as it helps lube all around the hydraulic system. When you say it leaks, just how much fluid loss are you getting, drips are OK as long as it isn"t a constant flow. If you fit new Rings into the old cylinder, it may leak for a while until it beds -in, but the Pump is capable of handling a leak like that, so really you won"t know if it is leaking or not. The real test is mounting a 2 bottom plow, with the oil hot and switching off the Pump and see how long it takes to drop. You have to remember when you do this you are not doing a full drop test as the link arms will be halfway when the plow is on the ground, so to get a true figure it should drop all the way down. What I would do is build the system and check just how much you are losing from the Lift Cylinder when it is under pressure with an implement of 600lbs weight. Drips are OK constant streams need to be watched and should it be running like this then use the tractor for a while to allow the Rings to bed-in and check again in a few months time. A lot of people think that there should never be an oil leak from these hydraulics which is wrong, it does serve a purpose. Regarding the grit etc, it is the Pump that you need to think about more than the Lift Cylinder, this is the critical and expensive part, what you need to do is keep the oil changed every 12 months, do it when it is hot and it will wash out all the crud that maybe in there. Check the Rubber Boot on the Gear Change and fit a new one to prevent water getting in, also you should change the Felt seal under the Draft Spring, this is always forgotten usually because it is rusted and you can"t take it apart easily, but it needs to be done. Soak the seal in oil overnight and plaster the inside of the Draft Control with molybdenum grease, keep the thread on the yoke adjuster clean and adjust it often so that it wont stick. Don"t try to force it off if it is stuck or you will bend the internal control fork. Email me direct if you need to do....John(UK)

[Log in to Reply]   [No Email]
Jason S.

08-05-2012 12:08:27

Report to Moderator
 Re: Lift cylinder question in reply to John (UK), 08-05-2012 08:43:09  
When I first got the tractor it just barely would pick up anything. I took the cover off and had a constant stream coming down from the lift cylinder. I tore it apart and cleaned the sump and took the pump apart and checked everything and replaced all the gaskets. I measured the lift cylinder and it was on the high side of the clearances but still within spec according to the ferguson manual. I put a new set of agco rings on the piston and reassembled it and it was marginally better. So I took it apart and did the naa piston swap and that cured it....for a while...after you used it for a long time it got to where it wouldn"t pick my hay rake up all the way anymore. Now it"s has gotten to where it picks up and then leaks down then back up and just keeps cycling like that and I figure the oring is shot causing a massive leak which is causing the cycling.

[Log in to Reply]  [No Email]
John (UK)

08-06-2012 05:58:15

Report to Moderator
 Re: Lift cylinder question in reply to Jason S., 08-05-2012 12:08:27  
The fact that the system is cycling like you say does not mean that there actually is a problem unless you can actually see a leak from the Lift Cylinder, it can be adjustment or wear that causes this. It is a natural reaction if the system drops, it is supposed to lift again, but it can also be caused by adjustment as well. But the deciding factor is whether there is a leak from the Lift Cylinder.When you work on hydraulics unless you are fully aware what you are doing it is often better to leave them alone, especially the Pump, taking it apart does not always reveal if there are problems, by taking it apart you can make matters worse. You should always find out the location of the problem first and repair the fault, then re-test the pressure again to see if all is OK. Sometimes when this happens it means that you need to re-assemble the system and then do the tests that should have been done originally so that you can repair it. Take the r/h side cover off and operate the lever, if there is oil leaking as before from the back end of the lift cylinder, then really you only have one option and that is to replace it. A leak anywhere on the system will cause the problem you have, as it is just a pressure loss.
Take off the L/h cover and check the high pressure pipe in the front right corner when it is under pressure (try to lift a 2 bottom plow)as these can split due to shock loads in transport. If there is no real amount of oil leaking on the Cylinder then you should adjust the Control Lever Quadrant to the correct setting..John(UK)

[Log in to Reply]  [No Email]
[Show Entire Topic]     [Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2018 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