Yes, a malfunctioning relief valve can definitely crack the top like that. In my case it cracked the cylinder instead of the top so I was lucky. Replacing the relief valve is cheap insurance. After years of sitting they get gummed up and won't open when they should..........that being said, your lift should be adjusted so that it never lifts to it's absolute top limit (or beyond) which would necessitate the valve opening. As John (UK) has said, every so often you should activate the relief valve by lifting the draft lever and lift lever up just so the valve remains cleaned out. Haven't seen John on here in awhile, hope he's ok.
As regards leaks, there is a kit available on this website which includes all the different o-rings you might need..........come to think of it, the o-ring kit I got came with the pump rebuild kit. They are tricky little things to find all of them as they are compressed from years of, well, being compressed and they tend to blend right in with their surroundings. I thought I had extras but eventually found a home for all of them. I recommend replacing them all, again, cheap insurance.
It is normal for these lifts to leak down over time even in pristine condition, I'd say it takes 15-20 minutes after I shut down the tractor before the blade hits the ground.........having said that for safety reasons I put it down every time I park so it doesn't come down on a child or pet.
This post was edited by Inno at 18:11:30 02/26/13.
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 - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
... [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.