Dual 3rd Function

   / Dual 3rd Function #1  

helmdog25

Member
Joined
Apr 17, 2017
Messages
29
Location
Crystal River, FL
Tractor
Kioti CK2620H, Kubota B7100, B6200 - JD 510C loader/backhoe
So as some of you know, I recently bought a new Kioti CK2620H. I need a 3rd function for some attachments and didn't get one installed by the dealer. In researching I wasn't sure if I wanted to go with a "true" 3rd function or a diverter type. Both seemed to have pros & cons, so I decided I'd like to make a dual system 3rd function. Basically I'm going to put both a electronic power beyond valve that will work with both joystick buttons, and a diverter valve that works with just one, then a selector switch to see enable one or the other. So far I've just done the design in a schematic and bought the major components. I still need to figure out the actual wiring, mounting and line routing.

Anyone have thoughts or additional suggestions?
Dual-3rd-function.png

Here's the valves I'm going to use:
Hydraulic Solenoid Diverter Valve, 6 ports selector, 13 GPM | Magister Hydraulics (two of these, one as the 3rd function diverter, the other as the output selector)
 

Attachments

  • Hydra-Dual-3rd-function-Full-Control.pdf
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   / Dual 3rd Function #2  
You can stack those diverter valves to has many as you need. 3rd, 4th, 5th function, etc. Then just use the buttons from the joystick. Mount the block of valves on the cross member of the loader and you would only need a couple of hoses and a couple of fittings to connect it to the curl circuit.

Personally, I would rather retain the ability of feathering the controls that the diverter allows you to do. It would also make for a clean and simpler install.

I believe there is this slight misconception that a "true" 3rd function allows the operator to use all functions at the same time but in reality it's not quite like that.
 
   / Dual 3rd Function #3  
What's the reasoning for 2 different types of 3rd function valves? If you need 2 functions I could see it. I've had both types and would only have the live 3rd function.
 
   / Dual 3rd Function #4  
The directional valve requires power beyond sleeve or plug. Is that option listed or available?
 
   / Dual 3rd Function #5  
The directional valve requires power beyond sleeve or plug. Is that option listed or available?
Every one of the Compact Utility tractors I have seen with a hydrostatic transmission, have the power beyond installed on the loader valve from the factory, and use that to power the 3-point.

I'm planning to install a second loader valve on my T233, to control top and tilt on the 3-pt. I was thinking of using two diverter valves on the rear remote line. Then I found an eBay listing for a couple of the control valves for my tractor, NOS from the inventory of a closed TYM dealer. And decided that I could use a second control valve mounted at the right rear fender, to control the top and tilt.
 

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