Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Farmall & IHC Tractors Discussion Forum
:

Problem w/ Lift-All pump on H

Welcome Guest, Log in or Register
Author 
Illinois Farmal

11-09-2007 12:10:33




Report to Moderator

I have a "46 H with a Lift-All belly pump that has recently started giving me problems. I"m using a Stan Hoist trip bucket loader on it and when I have even a small load on it, it doesn"t want to lower smoothly. The push rod acts like it has a lot of pressure against it and when you go to lower it, it just drops like a rock when it does release. When the bucket is empty it lowers fine. I"ve used this loader for several years with no problems before....what could be causing this??? Thanks to all in advance.

[Log in to Reply]   [No Email]
Janicholson

11-10-2007 06:26:22




Report to Moderator
 Re: Problem w/ Lift-All pump on H in reply to Illinois Farmall, 11-09-2007 12:10:33  
When Liftalls get into the prime of life (working well, but many hours)the release of the lever seems to be jerky under high load. Two solutions come to mind but are not tested. One easy, one hard.
EASY: stiffen up the rod controlling the lever. The rod flexes enough to allow springing in the length of the rod and this seems to be a marginal way to be delicate in control the lever. It is ugly, but a test of the idea might be to use a Vicegrip and "clamp" a 1/2" diameter rod near the lever end of the regular control rod and use that to "parallel" the normal rod to see if better control results from a stiffer rod.
HARD: within the Liftall there is a spool valve the lip on the spool that closes off the return of fluid to the resevoir could be modified with a Dremel grinder on one edge to allow valve movement to open a smaller channel as it begins to relieve pressure. Unless you are pretty sure of what you are doing with spool valves/hydraulics, this might be a bad idea. (consulting a good older hydraulic expert to assist might be good as well)
JimN

[Log in to Reply]  [No Email]
glennster

11-09-2007 16:20:40




Report to Moderator
 Re: Problem w/ Lift-All pump on H in reply to Illinois Farmall, 11-09-2007 12:10:33  
there may be a check valve on the loader that is stuck open. there is a valve available that will allow full flow one way on hydraulics and limit the return flow so the implement doesnt drop. it could be located where the hydraulic line hooks to the elbow at the all pump on the tractor, or at the end of the line where it hooks to the loader cylinder.it should be about the size of a pioneer female hydraulic coupling, maybe a little bigger. there is a check ball inside that limits flow. maybe dirt or something is blocking the check ball.

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

Hop to:


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. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 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