There are a number of things that might cause such a noise. First, let me say that your symptom is that of a weak pump or low pressure. By nature, hydraulic pumps tend to be noisy - vane pumps more so than gear pumps. Scoring on the pump surfaces can cause noises. Scoring allows minute amounts of air or oil vapor to be brought in to the compression area. These bubbles collapse and cause what is called cavitation. A weak spring in the relief valve can also cause noise. A weak spring allows too much volume to pass through the pump causing a louder than normal noise. You said that there were some issues in the 3-point at times. That indicates that the pump could also be starving for oil. If there is any kind of inlet filter, that could also be causing a restriction that might under some conditions cause the pump to starve for oil. Also, a slight relocation of the lines to keep them from touching each other or anything else might help. There is also the possibility that the noise is the result of a harmonic vibration coming from another part of the system. My gut feeling is that the pump is worn causing the noise.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 - Show Coverage: Argyle and Mt. Pleasant Labor Day Weekend Shows - by Cindy Ladage. The last fling before summer fades into fall and we get busy in the fields are the annual Labor Day tractor shows. Beginning on September 5th and running through the 7th, the Argyle Antique Gas and Engine Show is held at the Argyle State Park. Located in West Central Illinois, the pine forest was the setting for the opening of the 22nd show. This year we decided to try to sell a few tractor parts, literature and wrenches to offset my husband's buying sprees. Saturday
... [Read Article]
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.
