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Discussion Starter #1
I've been seeing lots of references about 3 PT Hitches, but I don't follow how they work. Can someone please explain the design, and also the difference between a 3 Point and a sleeve hitch?

Thanks
 

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Originally posted by balmoralboy
I've been seeing lots of references about 3 PT Hitches, but I don't follow how they work. Can someone please explain the design, and also the difference between a 3 Point and a sleeve hitch?

Thanks
This post holer is mounted on a three point hitch.
 

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Anyways I figured the link could put the information in front of you better than I could explain it. Let me know if you still have more questions.
 

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A 3pt hitch will allow you to control implements which have been designed to work within a design consisting of (2) lift arms which are controlled via hydraulic control and one center drawbar arm.
The 3pt hitch system allows extremely strong and accurate control over usually very heavy implements required to do big work that is far and beyond what smaller LT or GT units can perform. A sleeve hitch may allow the operator to control the basic height adjustment controlled manually not hydraulically for a smaller implement but it is generally very limited in scope and performance. It is just different designs for different purposes.

BTW, there are several different types of 3 PT categories:

Category 0
For Tractors with up to 20 Horsepower
Top Link Pins are 5/8 inch in Diameter
Lift Arm Pins are 5/8 inch in Diameter


Category 1

For Tractors with 20 to 45 Horsepower
Top Link Pins are 3/4 inch in Diameter
Lift Arm Pins are 7/8 inch in Diameter


Category 2

For Tractors with 55-65 to 90-95 Horsepower
Top Link Pins are 1 inch in Diameter
Lift Arm Pins are 1 and 1/8 inch in Diameter


Category 3

For Tractors with 95 to 100 Horsepower and Up
Top Link Pins are 1 and 1/4 inch in Diameter
Lift Arm Pins are 1 and 7/16 inch in Diameter


I hope this helps a little,
Andy
 

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Here's another view of a sleeve hitch.

<img src=http://content.sears.com/data/product_images/071/24535/07124535000-dlv.jpg?SSImageQuality=Full>
 

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Discussion Starter #12
3 PT and Sleeve Hitch

Hey guys, Thanks for all the help.

I'm still not completely clear, but maybe if I explain what I think I understand then people can correct me.

Ball Hitch: The traditional trailer hitch - like on my old camper trailer.

Pin hitch: The one that came on my tractor - a 3/4" hole in the bumper to allow a trailer to be pinned to it.

Sleeve Hitch: A sleeve hitch is a lever operated device which raises and lowers a pin hitch on an arm. This allows separate control of the height of the tow bar on the pulled implement - for example would allow you to tow a trailer at an angle - front or rear high. Willie has put an electric actuator on his to allow him to control this more easily.

3 Pt Hitch: A hitch consisting of a floating or fixed centre link and two hydraulically controlled sidearms. The sidearms allow you to control hitch point height and also the attitude of the implement separately from the hitch point height. I have no idea why you would typically want to do this, but if it was a blade I assume you could control the sidespill, the height, and the vertical attack angle.

How's that so far?
 

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Jim I think you have it all sum up now:thumbsup:
 

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good explanations and illustrations... thanks




any sets rule of thumbs as to what attachments use what types of hitches?

3 point vs sleeve hitch...
 

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john Sleeve hitches and 3pt's can both take Rear Blades,Box Scrapes, Cultivators,disks and plows and slip buckets thanks to the Johnny Bucket. Most sleeve hitches take 10inch plows where 3point hitch cat0 and above take 12inch or bigger plows But your tractor is a exception using a 12inch sleeve hitch plow. Both sleeve hitch and three points can take tillers. Pretty much sleeve hitch implments are just implements on a smaller scale and ability and attach with one pin where 3points hitch implements attach with 3 pins and have a higher ability.
 

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Re: 3 PT and Sleeve Hitch

Originally posted by balmoralboy
I have no idea why you would typically want to do this, but if it was a blade I assume you could control the sidespill, the height, and the vertical attack angle.

A typical application would be to put a crown in your driveway for water run off:D
 
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