Hydraulic problems

Anyway, observe what's happening when the loader won't lift the bales. Does the tractor strain at all? Can you hear any noises, like a humming or buzzing noise? That means the relief valve is kicking in and letting the fluid blow by inside the tractor.

If you've got 1300PSI at the remotes, the problem may very well lie with leaky cylinders on the loader. The other possibility is that the cylinders are simply not large enough to lift that much weight. A 2" cylinder, for example, can only exert about 4000lbs of force with the oil at 1300PSI, and that's if it's not leaking at all. The hydraulic cylinders on a loader work at a mechanical DISadvantage, meaning it takes much more force to lift a particular weight. They're on an angle, and in between the fulcrum (pivot) and the load (simple lever science). Even two cylinders exerting 4000lbs of force each. may only be able to lift 1000lbs out in the loader bucket.

JimN

I get a different answer. The area of a circle is "pi times (r squared)". In this case, assuming a two-inch cylinder means two inches in diameter, r = diameter/2, so r=1 and r squared =1. So the area is pi times 1, or pi, or roughly 3.14 square inches.

Then again, I could be wrong...Maybe someone "out there" can double-check our work and confirm one or the other.

It looks like maybe you were squaring pi instead of the radius to get your answer.

Mark W.

Happens to the "best" of us, and in my case I use that term VERY loosely. :)

Mark W.

Thats a pretty good load for a 560 and loader.

Maybe the loader was never designed to lift that much.

Just wondering.