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

Restoration & Repair Tips Board

Rusted/Stuck Loader Controls

Welcome Guest, Log in or Register
Author 
David Coe (MD)

07-24-2004 19:01:22




Report to Moderator

I'm trying to get a Ford 841 running (got the engine going OK), but can't get the loader to raise because the hydraulic control levers are stuck; probably just rusted -- the tractor has sat in the rain for 4 years or more without being started.

It does seem to have hydraulic fluid flowing through the controls.

Should I try penetrating oil, or something else, or try to disassemble the controls?

Thanks for your suggestions.

If you want to take a peek at them, look at the "loader_controls" pictures at this url...

[Log in to Reply]   [No Email]
Hydromaniac

07-26-2004 23:51:38




Report to Moderator
 Re: Rusted/Stuck Loader Controls in reply to David Coe (MD), 07-24-2004 19:01:22  
If the spools are rusted and the levers are incapable of moving them, you've got a very contaminated hydraulic system that needs to be flushed out clean be fore you try to operate it . Otherwise you'll have rust particles and slime floating around blocking all the small orifices in the contol valves and playing havoc with your pump. Rust means water and that is very bad to have in your hydraulics. Try disconnecting a cylinder hose when the system is NOT PRESSURIZED and see what the fluid looks like. THAT will tell you a bunch. Good luck. I have an 841 and it is a great little machine.

[Log in to Reply]  [No Email]
Bob

07-24-2004 22:26:31




Report to Moderator
 Re: Rusted/Stuck Loader Controls in reply to David Coe (MD), 07-24-2004 19:01:22  
That looks like a pretty common 2-spool valve, probably a Gresen.

Try the penetrating oil at both ends of the spool. The end that faces up may have gotten water in through the dust plugs, and that is what stuck the spools.

You ask "Should I try penetrating oil, or something else, or try to disassemble the controls?" Well, to disassemble them, you've got to get the spools loose, and getting the spolls loose would pretty much solve your problem, wouldn't it!

[Log in to Reply]  [No Email]
David Coe (MD)

07-25-2004 08:20:05




Report to Moderator
 Re: Re: Rusted/Stuck Loader Controls in reply to Bob, 07-24-2004 22:26:31  
>> Well, to disassemble them, you've got to get the spools loose, and getting the spolls loose would pretty much solve your problem, wouldn't it!

Heh, thanks. I'm an external hydraulics newbie -- never been close to one of these 'til now.

Another newbie question: is it ok to bang on the control levers, after the penetrating oil has had a chance to soak in, or am I likely to break them?
Is it safer to bang on the spools directly (if possible)?

Thanks again for the advice.

[Log in to Reply]  [No Email]
Bob

07-25-2004 11:25:14




Report to Moderator
 Re: Re: Re: Rusted/Stuck Loader Controls in reply to David Coe (MD), 07-25-2004 08:20:05  
Most likely, the levers are cast iron, and won't take much abuse. Go easy on the spool, also, as it is a precision selective fit on the valve bore. The grooves in the spool, between the "lands" are obviously reduced diameter also, which makes it relatively easy to bend the spool. The end opposite the lever may have originally had rubber caps over it to keep out the elements.

Is there a little block-off plate in there, held in with a snap ring? If you can get in from that end with some PB Blaster, that may be the key to loosening them up. Good Luck!

[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