Posted by Janicholson on September 02, 2020 at 19:09:51 from (24.240.46.228):
In Reply to: Re: 806 update posted by rustred on September 02, 2020 at 18:54:23:
The big frame TA has three clutches, two of them are driven by MCV pressure directed by the TA lever to either engage the direct clutch (front), or the rear clutch TA holding clutch to prevent runaway down hill, but it is a weak clutch not designed for engine power at all, and a Sprag clutch (one way), which takes all the TA main body reverse rotation and transfers it to the housing. Just like a Mechanical TA in smaller tractors. If the front clutch fails, and bleeds off substantial MCV pressure it slips, forcing the TA main body to turn backward. This puts the power on the sprag clutch which has failed (it slips intermittently. In mechanical TA tractors, if the Sprag clutch fails, the friction disk dry clutch drives the TA at crank shaft RPM and the tractor remains operational in direct drive. If a front dry clutch fails in a mechanical TA, it will drive in TA reduction all the time, TA lever forward or back. If the sprag clutch also fails in a small frame tractor, it will not move. Jim
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. 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 - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
