Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts
Salvage

Community
Discussion Forums
Project Journals
Your Stories
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

  
Farmall & IHC Tractors Discussion Board

Re: 826D specs,


[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]

Posted by K.B.-826 on January 31, 2005 at 19:00:39 from (209.163.43.7):

In Reply to: Re: 826D specs, posted by ChadS on January 31, 2005 at 07:04:13:

Chad, the TA in the bigger tractors is nothing like the Super M-TA style, which is called the Mechanical TA. Anything with more than 70 horsepower built from '63-'85, from the 706 to the 3688, had the Hydraulic TA.

Instead of using a planetary like the mechanical TA, the hydraulic TA was basically just two sets of constant mesh gears at the front of the speed transmission, one ratio for direct, and a lower ratio for TA.

With the lever ahead, the Multiple Control Valve, or MCV, sends oil from the MCV pump to a hydraulic clutch pack, which locks the drive gear of the direct ratio gear set to the input shaft.

When the lever is pulled back, the oil pressure is dumped from the hydraulic clutch pack, unlocking it. A sprague clutch, located between the drive gear of the lower ratio gear set and the input shaft instantly locks up. The MCV sends oil pressure to a hydraulic brake pack located between the sprague clutch and the input shaft, to keep the sprague clutch from freewheeling.

There are many reasons why these TA's fail. Leakage in the MCV, TA, steering, lube, or brake circuts; abuse such as flying in off the road with a heavy load and shifting to TA to attempt to slow down will fry the brake pack. Water in the oil will flake the linings off of the clutch and brake disks. Leaving it in direct all of the time will cause flat spots to wear on the sprague clutch, which will then fail as soon as someone tries to use it. Misadjustment will cause hard shifting of the speed and range transmissions.

As with any tractor, even the Super M-TA, the TA was always just an option. We have a 706 that came from the factory with no TA. There are many ways to eliminate the TA, ranging from taking off the handle and throwing it in the toolbox to installing a plain input shaft with just the direct ratio gearset, which is what the factory non-TA tractors have.

The 361 was never used in a combine. The 407 was used in the very first 815's, DT-407 in the very first 915's. It is very hard to find these combines with these engines. If you are considering a combine engine repower, stay away from the 310 in the 715, unless you are good at making your own parts. At first glance, this engine makes perfect sense, since it is the little brother to the 358. However, the tractor flywheel will not bolt up to it's crankshaft.


Follow Ups:




Post a Followup

:
:
Hide: Yes No
Hiding your address protects you from spam generators but allows you to receive email response notifications.

Subject: :

:

:

:

: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.


TRACTOR PARTS TRACTOR MANUALS
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 ]

Home  |  Forums


Today's Featured Article - Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro ... [Read Article]

Latest Ad: Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request [More Ads]

Copyright © 1997-2024 Yesterday's Tractor Co.

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.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy