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
:

BLEEDING HYDRAULIC CYLS.

Welcome Guest, Log in or Register
Author 
john-wiz-

04-07-2006 05:39:25




Report to Moderator

I have a loader on my "H" with a live pumps system and I cannot seem to remove the air in the cylinders. every time I lift the bucket up, I can jump up and down in the bucket and the cylinders go in and out (spongy) any idea how to remove the air???? I have tried to fill the cylinders before putting them on the machine but the results are still the same - please help




[Log in to Reply]   [No Email]
Hugh MacKay

04-08-2006 02:57:48




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to john-wiz-, 04-07-2006 05:39:25  
John: I think Paul has it nailed. Often times this problem can cause the resovoir to over fill and belch the fluid out on the ground. Probably not bad on a tractor.

Truck dump hoists will do this, some of those big telescoping cylinders on trailers often have as much fluid left in the cylinder, when completely down, as there is in the resovoir. If you leave it in the down position it will all drain back. Those have air bleeders on top end of cylinder. Most have a spring loaded down position, making it such, that you must hold it in that position. Dump trucks can belch out 5+ gallons of oil if this is forgotten.

[Log in to Reply]  [No Email]
PAULIH300

04-07-2006 09:42:44




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to john-wiz-, 04-07-2006 05:39:25  
What I find happens with single acting cylinders,is when you let them down (by gravity) and you leave the lever in that position after the loader touches the ground,it emptys the cylinders completely.Then,the next time you power them upward,they have to be re filled trapping a pocket of air (a void).And that keeps happening again and again.Best advice? Dont let the lever stay in the down position any longer than it needs to be.

[Log in to Reply]  [No Email]
john-wiz-

04-07-2006 10:43:20




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to PAULIH300, 04-07-2006 09:42:44  
GOOD POINT - I will try that on Sat.

Thanks



[Log in to Reply]  [No Email]
Janicholson

04-07-2006 06:34:40




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to john-wiz-, 04-07-2006 05:39:25  
With engine off, and the pressure in the hyd system at zero, remove the cylinders (one at a time, block and be safe here) then position the cylinder so that the inlet fitting is highest. Loosen the fitting and push in on the ram to displace air. Tighten, then repeat on the other side.
Good luck, JimN



[Log in to Reply]  [No Email]
Dellbertt

04-07-2006 06:06:07




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to john-wiz-, 04-07-2006 05:39:25  
I just change two hoses on rear lift and it had some air. After a couple days of working it the air seem to work its way out. If yours is a vented system with no leaks it should work itself out with full travel use.



[Log in to Reply]  [No Email]
john-wiz-

04-07-2006 06:16:53




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to Dellbertt, 04-07-2006 06:06:07  
my cylinders are only single action and i do not see any vents. it was always spongy so that is why i re-built the system hoping to stop this - but it is still spongy



[Log in to Reply]  [No Email]
Dellbertt

04-07-2006 12:32:19




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to john-wiz-, 04-07-2006 06:16:53  
The vent is usually in the resevoir.



[Log in to Reply]  [No Email]
RustyFarmall

04-07-2006 06:32:13




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to john-wiz-, 04-07-2006 06:16:53  
What kind of loader is it?



[Log in to Reply]  [No Email]
john-wiz-

04-07-2006 07:00:12




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to RustyFarmall, 04-07-2006 06:32:13  
i think it is a model 33 IH loader



[Log in to Reply]  [No Email]
RustyFarmall

04-07-2006 07:51:01




Report to Moderator
 Re: BLEEDING HYDRAULIC CYLS. in reply to john-wiz-, 04-07-2006 07:00:12  
Sorry, I am not familiar enough with that model to have any real insight, but the others have provided some good hints.



[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