Posted by Ronnie Budd on August 08, 2017 at 16:22:48 from (184.53.32.151):
In Reply to: Low RPM tractors posted by kmvictor on August 08, 2017 at 09:14:58:
Back in those days, tractor PTO speeds weren't standardized at 540 and 1000 like they are now. Not even the PTO shafts themselves were standardized for size like they are now. There was quite a bit of variation in both, sometimes within the same brand. John Deere did that in the lettered series.
For example, our old Minneapolis Moline's PTO ran at 630 RPM at 1500 RPM crankshaft speed. To use it at 540 meant slowing the engine down to about 1300. Our old MM U operated at 1200 RPM with a similarly fast PTO speed, so slowing it down to 540 meant slowing the engine to 1000 RPM or less.
Other manufacturers had their own schemes. Some even ran 720 RPM PTO speeds. Tractor manufacturers built implements to match their tractors.
As time went on, it made sense for everybody to standardize PTO speeds and shaft sizes so that any make of tractor could run any make of equipment.
As a side note, you can accomplish what you want with any tractor that has a 1000 RPM PTO (if it is powerful enough). My neighbor has been mowing hay for years with a White 105, running the 540 RPM disc mower on his 1000 PTO and throttling back.
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 - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
... [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]
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.