Direction of flow from diverter valve

[jcummins]

Disable regen, by taking parts out???...From what I know, regen for normal use is a good thing....right. Besides I have not idea where the 'can' is for doing that.

Have no way to measure, but I got pressure with the grapple working...and reverse the hoses, I most certainly have pressure. I can feel in the hoses all the way to the cylinder, and if I throw the fel handle all the way left or right, the hoses jump.

I have the valve plumbed in the way of the diagram you posted J_J.

 

[J_J]

Sure, if you don't need float or regen, then remove the parts.

Regen is for fast dump. Serves no other purpose. Some people like it and others don't.

It also messes up SA cyl operation.

For about $150, you can do the true 3rd function.

I have checked around quite a bit, and no one seems to know about the regen problem when switching the hoses.

When one goes into regen, the rod end port is blocked and the rod end fluid is routed to the base end of the cyl.

Now, the cyl will pass all of it's fluid to the base end.

If you switch hoses, all the fluid from the base end can not fit into the rod end of the cyl.

I am not sure what will happen. The pump is trying to fill the rod end and the base end fluid is trying to fill the rod end.

Just don't know.

 

[Leejohn]

Isn't regen in the spool? The can only has the detent. Doesn't the loader cyl and grabber cyls have to be the same size to work right?

 

[J_J]

Leejohn, you are right about the regen. Part of regen is in the spool.

The spools lands are different for regen option. I think the purpose of the regen detent is to let you know by a soft detent that you are in regen. Not that you would not know this by the fast action.

The extra land closes off the cyl return port when in regen .

Size of the cyl has nothing to do with it working.

A smaller cyl will be faster.

 

[jcummins]

After this discussion and learning of regen.....I use float at little, but fast dump all the time. So I want regen.

 

[k0ua]

Not that this photo has any bearing on your Kubota, but here is what we were talking about in this photo. This is the fender sticker on my Kioti, notice the regen function to the right of the dump function as you move the joystick from Neutral to the right.

 

[J_J]

About reversing the cyl ports and using regen.

After thinking through all of this, I am concluding that once the base end fluid merged with the pump fluid fills the rod end, half of the base end fluid is still in the cyl and now is being merged with pump flow. you have hyd lock, and the cyl will not move.

There is no where for the fluid to go once there is fluid on both sides of the cyl. , and I would suspect the relief valve was dumping the fluid to tank.

Regen in the normal mode works because the rod end fluid can fill the base end and the pump fills the rest of the base for a fast action cyl.