Why oh why

[NYlumberman]

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When I look these two machines, on the Kubota, the cylinder rod is smaller, so it would have more piston area when applying down force. The NH lift cylinder rod is larger relative to the cylinder bore, so it will have less down force at the same system pressure.

 

[Elviscaretaker]

When I look these two machines, on the Kubota, the cylinder rod is smaller, so it would have more piston area when applying down force. The NH lift cylinder rod is larger relative to the cylinder bore, so it will have less down force at the same system pressure.

When I went out to feed the critters this morning I took a good look at my TC-30. You are partially right the issue is the ram, but it's more the travel of it. You won't get much lift with a flat bucket on it due to it being compressed in as far as it'll go, guess it explains why I always tilted my bucket on that one first. My G-5110 will give me close to a foot of lift with a flat bucket but that is a completely different animal. The rams on my TC-30 also seem to be on the small bore size, stock ones on it still.

 

[Jaygyver]

I realize the OP is happy with the answers but I wonder if the relief valve is just weaker on that part of the system on those models. Safety feature? "It's a feature, not a defect"
2700psi should be enough to lift the front end, say if the bucket is a foot or two up on brush or a log and you then try to lower the loader it should lift the wheels. You're not lifting the whole tractor, you're only lifting barely half the weight of the tractor.

Both my '97 JD-770 and my '22 LS-235 will lift the wheels if I have the loader 4 or 5 feet up in the air on top of some brush and I want to smoosh down the pile.

Someone already brought it up but wanted to mention it,
My JD-770 with the bucket curled, the loader will hit the ground and partially take the weight off the tires but not lift it, but my LS loader, with the bucket curled, has around an inch of air between it and the ground when fully lowered.
Just the position of the ram, and where it's mounted. In general terms, move it back and you get more depth, move it forward and you get more height.