Posted by Bob on August 27, 2018 at 10:37:50 from (64.255.159.199):
In Reply to: JD 4520 posted by rdhRDH on August 27, 2018 at 09:49:47:
Quoting Removed, click Modern View to see
I didn't catch the "powershift" thing, either.
Pump at the front of the transmission (much like an automotive automatic transmission pump) supplies oil to the powershift, and excess oil after regulated pressure is achieved goes up front to the cooler and pump.
Start by checking the sump screen for debris, and changing transmission filter.
If that doesn't help, pump MAY be worn/weak or something may have failed in the clutch or shift valve area that's dumping pump flow to sump when the clutch is depressed.
I would check the transmission pump flow, as well, don't have the tech manual at hand for a detailed procedure, it's at the shop.
Going back, though, if the line to the rockshaft is heating, you have a leak back there that is hastening the oil up front in the cooler and reservoir being used up. That issue needs to be corrected, as well.
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 - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [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.
