Posted by jfharper on July 27, 2012 at 18:26:24 from (173.255.107.30):
Got a mf205 industrial and I think I'm getting air in my power steering system. Here's what happens:
1. Fill and Bleed - fill the pump while tractor is on, turning wheel back and forth, until practically no air bubbles appear. I do this using a hose attached to a funnel attached to the pump, that way I can see air come up into funnel as I work the wheel. Also, I have the front end off the ground for ease.
2. Test Drive - So I get the system bled, then test drive the tractor for 5-10 minutes turning the wheel back and forth, then as it idles for a couple minutes about a pint of fluid comes out the top of the steering column and I hear a good amount of air escape from within the steering column. So my guess is I'm getting air into the system that builds up to a point where the column seal can't take it.
I've replaced the pump and the column seal, I see no leaks at the cylinders or anywhere else. My steering shaft isn't in the greatest shape, and I don't know the integrity of the valve. If air was coming in the cylinders, wouldn't there be a leak or something indicating so?
After I bleed, the PS works great, can turn back and forth with a finger until I loose the fluid. Fluid is M-1110 equivalent.
Can anyone offer something I should try, should I rebuild my cylinders, or replace the steering shaft eventhough fluid doesn't leak until I get a gas bubble built up, or should I replace the vavle, or the o-ring at the base of the column, or ?
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 ]
Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
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.