Grand l5240 loader design faults

[brada]

Hello all! I have 50 hours on my new tractor. I started pushing some rotten stumps out and found a whopper of a Kubota screw up on the hydraulic design. When doing a roll back on the bucket I noticed it did not have any power, really, really wimpy. I had the dealer out and he showed me that you have to push really hard on the control handle to the right, past a hard detent to go to high power. For the roll forward there is no detent, no high power, just wimpy. Kubota tells me they did this to stop the Hydraulic rams from bending. For me, I am very unhappy. I love the rest of the tractor, the HST plus is nice and the tractor has power to spare. Anyone else notice this?

 

[LD1]

Hello all! I have 50 hours on my new tractor. I started pushing some rotten stumps out and found a whopper of a Kubota screw up on the hydraulic design. When doing a roll back on the bucket I noticed it did not have any power, really, really wimpy. I had the dealer out and he showed me that you have to push really hard on the control handle to the right, past a hard detent to go to high power. For the roll forward there is no detent, no high power, just wimpy. Kubota tells me they did this to stop the Hydraulic rams from bending. For me, I am very unhappy. I love the rest of the tractor, the HST plus is nice and the tractor has power to spare. Anyone else notice this?

Are the quick couplers hooked up backwards??? Every other loader I have operated, to the right is dump, left is curl. And the dump has a detent on my 3400.

 

[kevinj]

Are the quick couplers hooked up backwards??? Every other loader I have operated, to the right is dump, left is curl. And the dump has a detent on my 3400.

Yep....hoses are wrong. The detent is on the dump circuit if properly plumbed.

 

[brada]

The dealer fixed it. However....... Why do they have the dang detent system anyway? understand the detent actually hooks the hydraulics straight back to the pump, makes it slower, but more powerful. Now that it is fixed, the roll forward is weak, my old L4310 whoops it on the loader power. The dealer will remove the detent ball, making it smoother to operate, the loader goes fast, then moves slower once it hits where the detent used to be. I liked the old system better.
brad

 

[kevinj]

The dealer fixed it. However....... Why do they have the dang detent system anyway? understand the detent actually hooks the hydraulics straight back to the pump, makes it slower, but more powerful. Now that it is fixed, the roll forward is weak, my old L4310 whoops it on the loader power. The dealer will remove the detent ball, making it smoother to operate, the loader goes fast, then moves slower once it hits where the detent used to be. I liked the old system better.
brad

You need to learn how it works. Before the detent the dump is fast, after the detent the dump is slow but powerful. Also the after detent will run a hydraulic motor.