Diverter valve regeneration question

   / Diverter valve regeneration question #1  

garjess

New member
Joined
Jul 24, 2020
Messages
5
Tractor
Kubota L3240
I want to install a third function on my L3240. I'm opting for the diverter valve just for ease of installation. My tractor has a cab and installing the true 3rd function looks like a real PITA.
My question is:
I've read that with a regenerative hyd. system a diverter valve will work with double acting cylinders. My kubota's curl up function is normal and the dump function has the regen. and a detent for normal operation. If I use only the regen on the dump function, will the double acting cylinder (for a grapple) need to operate the same as the bucket. In other words, if the bucket cylinder is extending will the grapple cylinder also need to be setup to extend when using that control.
I'd like to have "right" on the control lever be bucket dump, and grapple release, but in that scenario the bucket cylinder is extending and the grapple cylinder is retracting.
I ask because the detent for the "normal" operation is very stiff, I can use it but it requires some force, and when I get it to work my hand slams into the metal bar on the inside of the window.
I appreciate any help or other suggestions.
Gary
 
   / Diverter valve regeneration question #3  
... because the detent for the "normal" operation is very stiff...
You can take the cap off the back of the valve and clean it out. (that's where the mechanical detent is located) There are springs and ball bearings that will pop out of it so be careful and watch for them.
 
   / Diverter valve regeneration question #4  
I know this is an old thread, but did you get the diverter to work?

In regen mode, the cylinder is going to extend (close the grapple) regardless of how you have the hoses hooked up.

I crossed this bridge with my grapple on my MX5100....which ONLY has a regen valve. Initial plumbing was just like you wanted. Pull left to close and right to open. However.....BOTH functions made it close. So I swapped hoses.....where left was open and right was closed........but there is still a problem.

The problem is you have next to NO power closing the grapple in regen......so I simply hooked diverter up to the lift/lower functions of the loader. And honestly I like it better.....more intrinsic for me anyway to move the lever fore and aft to control something that is also moving fore and aft.....rather than my brain trying to compute left and right movement into opening and closing.

And added benefit of having it on the lift/lower circuit is float. No I dont use float for grappling. But to be able to engage float to relieve pressure if I am having difficulty hooking or unhooking the hoses:thumbsup:

But all that aside......on YOUR tractor, are you SURE the regen is the first function? I cannot honestly remember now but I was thinking on my old L3400 that the "normal" dump was first function.....and the detent was the regen?
 

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