Lift capacity of 3-pt hitch question (plz keep it simple)

[bcp]

I did a test, but didn't try different placement on the pallet.

http://www.tractorbynet.com/forums/kubota-owning-operating/311309-bx-weight-lifting-test.html

Bruce

 

[LD1]

I did a test, but didn't try different placement on the pallet.

http://www.tractorbynet.com/forums/kubota-owning-operating/311309-bx-weight-lifting-test.html

Bruce

Does the BX have multiple points to attach the TL to?

Wish I would have seen that when you were doing it. I assume you were in the topmost hole on the tractor. Using a lower hole (causing the pallet to rotate forward more and lift higher) would have decreased capacity. Would have been a good test to see just how much less.

 

[LD1]

OH, and that BX is rated for 992# at the ball ends and 670# at 24" back. So getting near 900# is pretty good. Looks like the TL is set up nearly parallel to the lower arms. Which is what you want for maximum lifting capacity.

 

[bcp]

Only one top link position on the BX. And only one hole in the lower link for the lift link.

Bruce

 

[LD1]

Only one top link position on the BX. And only one hole in the lower link for the lift link.

Bruce

Then yours is pretty straight forward with the forks on. Cannot really adjust the forks much, cause you want them level when lowered.

If you get a chance to grab a measurement that would be great. Put your pallet forks on and level flat on the ground. Measure the lower lift pin height. Then raise and see how high the lift pin is now....(lift pin travel range), and also measure a point on the fork to see what range of travel they have. Then we can see what the capacity is at that point. (assuming the ball end spec furnished by 'bota is accurate)

 

[Sodo]

What are you trying to accomplish here.

Well, this seems pretty simple to me (repeated the 3rd time)

Put a 3-point pallet lift on and keep adding weight until can't lift it. Post tractor model and the mfrs specs and the weight that stalled it.

LD1 how about you BUILD a 3-point lift fork (with i4>1 as you like). I'll bet you could provide very useful insight to this thread topic. With some actual data you won't have to argue in every parallelogram thread you can just post the results.

 

[LD1]

LD1 how about you BUILD a 3-point lift fork (with i4>1 as you like). I'll bet you could provide very useful insight to this thread topic. With some actual data you won't have to argue in every parallelogram thread you can just post the results.

And if I did that, with my 1998# lift capacity @ ball ends would be 1998# less the weight of the forks at any point. Cause I would design the geometry of the hitch to lift the forks perfectly parallel. For every inch the pins raise, the forks will raise 1" also, and remain level.

Then I could lower my top link to the bottom hole and shorten it up some. Making the forks raise MORE than the pins. I imagine a spec @ the center of the pallet would be somewhere around 1200-1300# less the weight of the pallet frame.

Or I could use the middle hole and probably be somewhere around 1500# less the weight of the pallet frame.

I understand your question perfectly. But you are looking for a single answer that works for everybody and a single answer does NOT exist. It can change and is adjustable. So why do you keep searching for a single answer.

Its like asking how much can my tractor pull and looking for a single answer. Too many variables. Pavement? Dirt? Mud? Gravel? Tires? Hitch height? All variables that effect the outcome. There is on "one-answer-fits-all"

 

[Sodo]

Excellent. Thanks Bruce. Whats is Kubota's spec for the 3-pt hitch lift capacity?

It lifted 12 blocks (804 lbs), pallet, carryall, and quick hitch to full height. Another block added limited lift to about 8 inches. Total would be somewhere in the low 900 lbs. Blocks were toward the front of the pallet, but stacked evenly, not in only one tall row.
View attachment 373458

 

[LD1]

Excellent. Thanks Bruce. Whats is Kubota's spec for the 3-pt hitch lift capacity?

See post #23

 

[Silvic]

Well, this seems pretty simple to me (repeated the 3rd time)



LD1 how about you BUILD a 3-point lift fork (with i4>1 as you like). I'll bet you could provide very useful insight to this thread topic. With some actual data you won't have to argue in every parallelogram thread you can just post the results.

Well you have said it is simple at least 3 times and others have said it is not simple even more times by multiple posters. The responders state that unless the variables are clearly defined and then the data is only valid for the configuration that is described there is no simple answer.

Since you don't seem to agree with the responders' position on their statement that it is not simple; there is a standoff.

Is that Clear and Simple?