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 04-29-2011, 13:05 Post: 178240
USworker



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 CAT 3 Specs

Anyone know what the weight rating spec of a CAT 3 Top Link would be? Such as "a CAT 3 top link will handle xxx lbs tensile or compression". I can see the HP ratings but would like to know what that would be in pounds - if it is possible.

Thanks,

Steve






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 04-29-2011, 16:56 Post: 178243
Murf

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 CAT 3 Specs

Well, first off, welcome!!

As for the ratings, I've never seen them, at least not for the upper link itself.

Also, in theory anyways the upper link should never receive compressive force, only tension loads. It is only the two lower links that the tractor is designed to pull from.

It might help us understand what you're looking for if we got a little more explanation.

Bear in mind, the strength of the upper link is really limited to what the threads can take.


Best of luck.






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 04-29-2011, 17:26 Post: 178244
kthompson



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 CAT 3 Specs

They are showing in the range of 15,000 pounds lift for cat 3 tractors. I AM NOT saying that is what the 3rd arm will support. It would be hard to believe anyone builds a lift system which the 3rd arm for that cat. would not be sufficient. But you may be wanting to know for another application.






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 04-29-2011, 17:49 Post: 178245
hardwood

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 CAT 3 Specs

USworker;
I don't know any specific tensle strngths of any category top link, but they have to about as strong as anything I've ever seen.
15,000 lbs. lift for a Cat three seems about right, they now have cat 4 and 5 so they would have a lift rating of probably in the 20,000+ range. I had a couple 8000 series Deere tractors with Cat 4 hitches, I have saw several occasions where lifting something too heavy with the three point brought the front end off the ground. The pull on that top link was more than I could believe it would handle.
I have never saw a top link pulled in half, but I have heard of, but didn't see where a three point hitch mounted backhoe pulled a chunk of casting out of the rear housing of a tractor, but the top link didn't fail.
Frank.






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