Posted by Leroy on January 25, 2018 at 14:08:56 from (69.88.201.13):
In Reply to: Engine HP vs PTO HP posted by bmack518n on January 25, 2018 at 12:10:42:
Engine horsepower is max at engine with no fan or water pump to take power, the to get to usuable horse poer you have to ad in what the generator, water pump, power steering pump and clutch and travsmission take and subtract to get actual usueable horsepower. That is why the compact tractors are rated at bare engine that is more than a farm tractor is rated at but that farm tractor will pull twice the load. And a hydrostat takes more power to operate than a gear driven tractor. And then most engines put out maximum power at a speed way higher than they have to be run to get pto speed so slowing down the engine to get the pto speed you loose power. Each transmission-rear end takes a different amount of power. And a lot of the tractors now are not tested so they cannot be sold in Nebraska and they just therfore use a bare engine horsepower in advertising to get people to think they are getting a lot bigger tractor. That is why a tractor advertised as a 45 engine horsepower tractor cannot do the work of a Ford N series putting out 22 horsepower on the PTO. And the pto-belt hotsepower is always higher by quite a bit than drawbar power because it does not loose the power to move the tractor. So if you have a hydrolic pump engaged the engine will put less power to a drive shaft than you do not have a hydrolic pump. Way to many variables to have a formula. And pto rated hp is 85% of max pto hp. drawbar is 75% due to wheel slippage and gear train among other factors.
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 - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
