You can't really give a figure in LBS because leverage is a huge factor. The hitch has a center-line which is the ball swivel at the end of the lower arms. If you hung a rectangular weight directly below that center-line that weighed 500 LBS, it is my belief the hitch would pick it up as long as the front of the tractor had sufficient counter-weighting to keep the front wheels on the ground. Now if you remove that rectangular weight from the 3 point, turn it 90 degrees and ask the hitch to pick it up again but from one end, I don't believe it would do it. Same weight........but the leverage factor makes it seem much heavier.
When lifting your tractor, there is no weight behind the center-line. It's all in front of it and that makes the hitch appear stronger than it truly is because the leverage factor is now working in reverse.
When lifting your tractor, there is no weight behind the center-line. It's all in front of it and that makes the hitch appear stronger than it truly is because the leverage factor is now working in reverse.