I read the entire thread. It still didn't make sense as to what exactly was being asked. If you're talking about automated manual transmissions, that's nothing new either. ArvinMeritor and Eaton/Fuller have been building them for many years now for OTR applications. Those are entirely ECM controlled. They're really only taking the standard 'Ranger transmission that's been used for 2 generations and installing the actuators for the ECM to control it. The ECM is only doing what any skilled truck driver has always done by floating gears, and all they've accomplished is making a transmission that is more durable to a pool of drivers who can't shift.... or put another way, greenhorns and jackasses can now get the lifespan from the transmission that everyone else gets. The transmission can be set to shift automatically or in a manual mode but the ECM controls the shift points. I don't believe that it would be cost effective or practical in a farm application. The way that that kind of transmission must shift does not lend itself to heavy draft conditions where there is a quick loss of momentum. That's why ag transmissions are mostly power shift today.
If you're simply talking about hammering gears at a manual transmission, then I think nearly every tractor transmission since the 60's has been of a constant mesh/sliding collar design. Ford's were and responded well to shifting without use of any clutches, the same as the RoadRanger. The only complication with this is that you had to be moving and have enough momentum to carry you through the shift. The link provided seemed to me to be a race transmission where you're not dealing with a lot of torque, and certainly not much weight. Weight and torque make things go bang if you miss one. It's not such a factor in those cars. How many times have you seen a F1 car blow a shift like that and the tires light up on a hard downshift. Do that with 10 tonne behind and solid traction.... There will be a mess somewhere between the wheels and the crank pulley.
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 - Fabrication (Who Me? Make it myself?) - by Chris Pratt. First of all, what are the reasons for not fabricatin your own parts? Most judgements on what should be purchased rather than fabricated stem from: Originality - If the tractor restoration is to be 100% original, it is likely that you should spend the time and money to locate the component in the used or New-old-stock market. Since this can be extremely difficult, you may want to fabricate the item or purchase a modern replacement temporarily, but eventually, you s
... [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.
