Machines | The Different Categories of 3 Point Hitches
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Visit Tractor Mike website: http://asktractormike.com/ Subscribe to YouTube Channel: http://www.youtube.com/user/thebigrockranch?sub_confirmation=1 Visit Facebook Page: https://www.facebook.com/Ask-Tractor-Mike-312112962245304/ If you've never been around tractors you may not know that there are different sizes or "categories" of three point hitch pins that implements have. In other words, the pins that go in the top and lower link arms of the tractor may be different sizes, and there's overlap where the tractor or implement could be either one of two different sizes. This will be a little clearer after watching the video. Basically, most of the tractors and implements that you'll likely be dealing with will either be Category I, which has top link pins that are 3/4" diameter and lower link pins that are 7/8" diameter, or Category II, which has 1" top link pins and 1 1/8" lower link pins. Between 40 and 45 hp, the manufacturer can make the tractor either size and be within American Society of Agricultural and Biological Engineering (the group that set the rules) standards. The problem arises if you're trying to put a Category II implement on a Category I tractor. If you're there you'll have to change pins in the implement. Putting a Category I implement on a Category II tractor is real easy. You'll just have to get some sleeves from your local dealer to go over the Cat I pins and they'll be Cat II. You don't see Category III implements generally until you get up over 100 hp, but they'd be acceptable on an 80 hp tractor. There's a Category IV on giant farm tractors that you'll never see unless you're in a heavy row crop application. There's also a Category 0 on the smallest of lawn & garden type tractors that's pretty rare. I feel like I ought to be giving a test now. Class dismissed!
Comments
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Hi Mike, I have a Ford 1944 2N tractor,and was wondering what type of 3 point quick hitch I can use to make it easier to use my implements ?? The tractor is 20-23 hp. Any suggestions would be great,thanks,Ken
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Thank you for that. I recently bought a small tractor and had no idea what any of that meant
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May i know how 3 point linkage works in tractor?
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love it!keep it up
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Any videos on attaching implements onto vintage tractors (I have a late 1940's- 1950's Massey Harris Pony)? It runs and I am trying to learn what I can put on it. Small loader and ground breaking implements.
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The horsepower that you mention is not the horsepower of the tractor engine. It is the drawbar horsepower which is always lower than the engine horsepower. Drawbar power is how much your tractor can pull and it depends on ballast and traction as well as engine power. A tractor with a 50 HP engine might only have a drawbar horsepower of 35 and it is therefore rated as a category I tractor and not a category II tractor. Finding the drawbar power of your tractor is not always easy, but knowing this explains why a tractor is rated with a lower category hitch than you would have expected for the engine horsepower.
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Well on the old tractors it was heavy duty no matter what hp
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nice info, thanks
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You are such a huge help to me with your videos!!! First time tractor owner and don't have someone to learn from sooooo I am learning from you!!! I have a 2001 New Holland TC40D with 1,780hrs on it.
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How about a video on the standards (width and height) for quick connects on three point hitches ?
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nice job!
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The sub compact tractors are commonly a category 1 limited. The lower link arms will NOT spread to the full width of a standard category 1. Category 0 are from long ago, current models are category 1 limited.
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Well done. 👍
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Mike - are there any weight or capacity ratings that go with these categories such as found with the auto trailer hitch categories I thru V? Logic seems there would be additional capacity with the type 3 vs type 1, etc.
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Great info. Easy to understand.