Nawww...

As someone else said, the front of the tractor will start to come off the ground at about 800 lbs. When these tractors were new, THAT would have been the limiting factor.

But they're not new, of course. So, I personally wouldn't lift much more than about 600 lbs. with one on a regular basis.

But perhaps I'm overly cautious...

I don't have an N series, but I do have a 1980 2600, which is just about the same as an NAA except for the 3-cylinder Deisel engine.

It used to belong to my uncle, who lifted small round bales with it on occasion. He prefered using his much larger John Deere 4040 for that purpose. but the Ford ALWAYS started (still does) and every now and then when it was cold the John Deere wouldn't; and cattle have to eat...