John Smith8N said: (quoted from post at 00:27:20 01/11/14)
"Why would it come out? The piston moved from one end of the cylinder to the other and the oil went right past it. No oil has entered or exited the cylinder. What is going to push oil out the open port?"
Volume? The side of the piston with the rod has a lot less area in the cylinder bore than the side with no rod. Fill a cylinder with the rod extended, then lower it with the oil pushing past the piston and the top side won't be able to hold all the oil because of the space taken up by the rod. The excess oil will come out the top port.
That is true and a point to consider. But this is a bucket cylinder and your scenario would be a bucket roll operation. In his test the bucket is dumping and the rod is moving out of the cylinder increasing the internal volume of the cylinder. There is plenty of room in the cylinder for all of the oil.
The test I gave him the first time he asked is the one I use and is "volume neutral". It isolates the cylinder from the rest of the hydraulic system and is simple and definitive:
Roll the bucket back and block or tie it up.
Remove both hoses and plug/cap both ports on the cylinder.
Remove the bucket support
If that bucket drops the seals in the cylinder are leaking.
TOH
This post was edited by TheOldHokie at 03:38:59 01/11/14 6 times.
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 - Magic Moments - by Tyler J. Woods. Magic moments don’t just happen. You have to help them along. This morning, I got up early. It is my day off from my regular workweek and I had a lot of things to do. It’s fall, and with winter coming on, there is a lot of work to do before weather closes in.
... [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.
