Kioti 4510 AL41

[Leejohn]

That relief valve is for the 4 & 1 bucket. I'm with Oldnslo on this I can not see why a relief is needed for that loader other then the one in the loader control valve.

 

[oldnslo]

Aussie,
thanks for the pictures since they do confirm mechanical self leveling.

Couple of questions on the block with the unknown black valve.
What do the two hoses going towards the bucket attach too?
What do the two smaller hoses going back towards the tractor connect too?
Same question for larger hoses coming in top and bottom of block.

Knowing how this is connected might help determine what that block does.

No clue on what the buttons do.

Regen dump: This makes dump function faster and reduces or eliminates the "floppy" bucket syndrome experienced on some models of tractors. Try pushing your joystick past normal dump position, if you have regen feature the lever should snap over detent feature and your dump with either speed up or slow down.

 

[ptsg]

That relief valve is for the 4 & 1 bucket. I'm with Oldnslo on this I can not see why a relief is needed for that loader other then the one in the loader control valve.

That relief valve block is not for the 4 and 1 bucket. I did explain what it is for on post #4.

You'll see on every mechanical self leveling loader, that they use the same relief valve block. It's there to prevent stuff from bending or breaking once the the curl cylinders are at the end of the stroke. If there is no relief valve mounted on the loader arms, it's because the loader valve has built in relief valves on the work ports, which will end up doing the same thing as the block.

 

[oldnslo]

ptsg,
I am possibly out of touch on newer mechanical self level but our older Gehl 4500 skid steer was 100 % mechanical and did not have any relief valve in the circuit. The geometry of the parallel linkage prevent bending things. You could have the bucket fully dumped with tip of bucket on the ground and raise to full height. Bucket just stayed dumped. Reason for this is that Mechanical system does NOT extend or retract the curl cylinders while raising or lowering. The parallel linkage moves the cylinder position which in turn changes the bucket angle.

Hydraulic self level the curl cylinders extend or retract in relationship to the lift - lower cylinders. On these you do need a relief since you can now try to force oil into a cylinder that is at end of stroke.

I suspect that block is for an auxiliary function potentially the 4 in 1.

Aussie,
sorry for hi-jacking this thread.

 

[ptsg]

ptsg,
I am possibly out of touch on newer mechanical self level but our older Gehl 4500 skid steer was 100 % mechanical and did not have any relief valve in the circuit. The geometry of the parallel linkage prevent bending things. You could have the bucket fully dumped with tip of bucket on the ground and raise to full height. Bucket just stayed dumped. Reason for this is that Mechanical system does NOT extend or retract the curl cylinders while raising or lowering. The parallel linkage moves the cylinder position which in turn changes the bucket angle.

Hydraulic self level the curl cylinders extend or retract in relationship to the lift - lower cylinders. On these you do need a relief since you can now try to force oil into a cylinder that is at end of stroke.

I suspect that block is for an auxiliary function potentially the 4 in 1.

Aussie,
sorry for hi-jacking this thread.

I understand what you're saying but what would happen if you fully dump the bucket with the tip on the ground till it hits the hard stops on the quick attach (visible on one of the latest pictures)? If you try to lift the loader then, something has to give. Hence the need for the relief valve.

You can see it connected to the curl/dump circuit on the latest pictures from the OP. That relief valve is actually a crossover relief valve but with a single relief valve.

EDIT: Was going through a Gehl 4510 parts diagram, just to understand how they did it, and they do use a relief valve on the curl/dump circuit but most likely mounted somewhere near the valve and hard to see.

 

[oldnslo]

Aussie
Have you been successful in determining if you have regen dump on that loader?

 

[Aussiekioti]

Nope still don't know about REGEN and still not really sure what it does but from what you are saying it would be part of the joystick DCV? That said I hav just learnt about and used FLOAT mode and am loving the difference this makes back dragging!!? Are we now all back into agreement that this block is just a relief valve and that I should set it closer to system pressure. I can definitely hear it clicking on and off when full curl or I think reverse curl more so. I'm also hearing a squishy sound I think in the block or hoses so I'm thinking an oil and filter change is way overdue. As said, will report results when done. I will probably first do the oil and filter and then test. Then I'll adjust valve to pressure and test, then will replace the valve and reset and test. Happy to be hijacked as am learning lots!! Does anyone want to still know where the hoses go? My hydraulics expert who tested the pressures determined that to get an understanding, but without knowing what is going on inside the block he could not work out cause of loss of pressure and when he contacted the dealers they were not helpful or did not know or have the schematics he was wanting!

 

[oldnslo]

Aussie,
If your hydraulics expert traced the lines did he tell where they connected?
The two lines running up the frame towards the bucket. Trace them and see if you can determine what they connect to. I.e. do they connect to the tilt cylinders?

 

[Aussiekioti]

Hi guys, hopefully this post will alert some of the helpful contributors and apologies for the delay. For those curious I've attached a few more photos and have drawn a picture showing where the lines go to. In the picture, where I show a line going to a ram, it is actually going to a junction that goes to each side, but I show if it is the back or front of the ram. I have also included a diagram of from the parts list and note that the actual part is called an "anti-shock block" which is obviously what most of you have indicated. As for its point of failure, I still have not changed the oil or swapped over the relief valve so will still report back on that at some stage soon! I still haven't worked out if I have REGEN, which by the sound of it is like the "float mode" but instead of passing an indent on the up/down, I should have a similar indent in the dump direction?! Still wondering if anyone can answer what the second button on my joystick may be for (if anything) or if for some more exotic attachments? (Currently the thumb button is used to change the left right curl action into open/close of the four in one bucket! Also, on the electronic distribution block that the four in one bucket attaches to, to the left attached to the electronic part there is a rounded plastic cover thing, it looks like it adjusts something, any idea what it does???

 

[ptsg]

The distribution block is actually called a diverter valve. As it diverts the fluid from the curl/dump to the 4n1 bucket with the press of a button.

The rounded plastic cover is the solenoid valve. When energized ( by pressing the button) it moves the spool inside of the valve to divert the flow.

As to why you have two buttons, to me it's a case of whoever installed that 3rd function, just used a joystick with two buttons.