Third Function Preference

[mangus580]

I just did a quick search for this, and didnt see a thread that seemed to have what I want.

What is the preference for Third Function - using a bypass for the bucket curl? Or adding a complete power beyond valve? (if adding a power beyond, electric solenoid vs actual manual valve)

I am trying to decide which way I will go when I finally get my FEL. So far, my only current plans for such a use, will be to angle a snow plow blade.... but a grapple could be in my future ;-)

 

[murphy1244]

if I was going to a 3rd function I would go with a true 3rd funtion

 

[nybirdman]

I have Kubota's third function on the joy stick.Expensive but worth it.W.R. Long also makes a third function kit.
Mine is used for a FEL mounted snow plow and a thumb on my bucket(summer).

 

[MtnViewRanch]

It seems that there are many people that think that they want the true 3rd function so that the are able to lift, curl and close their grapple all at the same time. Others go with a simple diverter valve, so you can't curl and close the grapple simultaneously. It's one or the other. The diverter valve setup is usually about $200 less than the true 3rd function setup. The diverter valve setup is much easier to install than the true 3rd function. Is one better than the other, I can't say.

I don't know if there is an actual overall preference. There are plenty of both out there and just like so many things, what a person has is what they usually think is best.

 

[DT86]

if I was going to a 3rd function I would go with a true 3rd funtion

I'll second that. The diverter valves work but the true 3rd function, although a little more expensive, is worth it.

 

[mangus580]

I know Surplus Center carries solenoid activated diverter valves... Does anyone have a link for an actual power beyond solenoid valve?


One thing that I know is nice about using the diverter, is it leaves you with the variable control ability from the main loader valve. I have noticed most 3rd function setups that are dedicated are solenoid operated, making it an on/off only function. Now, with that said, I cant think of too many applications where it might matter in the end. I guess its not like you need to feather a snow plow angle, or grapple closing....

 

[J_J]

One of these Surplus Center - 12 VDC 10 GPM OC DA SOLENOID VALVE

One of these Surplus Center - 1 STATION DO3 SUBPLATE OPEN CENTER

These valves are all PB.

 

[mangus580]

Ok - I had seen those but wasnt sure if they were PB.... Is a Power Beyond valve the same as an 'open center' valve?

 

[J_J]

PB refers to the ability to handle the high pressure.

Open center valve is a valve that the hyd are connected in series. Fluid is always flowing in an open center valve.

Technically each valve should have PB, except the last valve and it dumps to tank.

A closed center valve is a valve where the fluid only flows when a lever is activated, and they are all connected in parrallel.

A closed center valve does not use PB outlet.

 

[kennyd]

Wow, such misinformation here...

 

[J_J]

Since you posted just after me, it is apparent that you think something I posted is not correct.

If there is misinformation here, and it is mine, then get off your superior attitude and correct it.

I thought I was on your ignore list, but I see that you read my post anyway just so you can find fault.

However if you do see something, please correct it, as I am sure you never make mistakes.

If you have something to say, say it and don't whine about it.

 

[MtnViewRanch]

Here is the one that I sell.

http://www.hydraulicstore.com/products/hydraulic/bucher_hds11_electric_valves.html

 

[Zebrafive]

On my JD 2030 I used a rear SCV since I had one available. I would have required the 2 function mid valve to be replaced with a 3 function valve, too expensive of an option.
On my JD 6415 the mid mount loader valve is a "stacked valve" I found the 3rd function valve for the stack at a very good price and went that route. It is a solinoid controlled valve. I could have used a rear SCV since It has those too.

 

[Guesseral]

Since you posted just after me, it is apparent that you think something I posted is not correct.

If there is misinformation here, and it is mine, then get off your superior attitude and correct it.

I thought I was on your ignore list, but I see that you read my post anyway just so you can find fault.

However if you do see something, please correct it, as I am sure you never make mistakes.

If you have something to say, say it and don't whine about it.

That's ok JJ I beleive you!...........Of course what do I know. :confused3:

 

[Dougw133]

Wow, such misinformation here...

Felt the need to leave that comment yet you don't elaborate or correct it? Don't bother posting that then.

 

[trktrman]

Felt the need to leave that comment yet you don't elaborate or correct it? Don't bother posting that then.

X2!!!

 

[kennyd]

One of these Surplus Center - 12 VDC 10 GPM OC DA SOLENOID VALVE

One of these Surplus Center - 1 STATION DO3 SUBPLATE OPEN CENTER

These valves are all PB.

They are? Where does the optional PB sleeve plug into? What is the part number for the PB sleeve?

The subplate may indeed be rated for high pressure on the outlet side, but to say that "These are all PB" is a false statement.



--------------------------------------------------------------------------------------------------------------------------------------------------------------------

PB refers to the ability to handle the high pressure.

What? The definition of Power Beyond has nothing to do with the "ability to handle the high pressure".



From this link: Hydraulic Terms

"Power Beyond - An adapting sleeve which opens a passage from one circuit to another. Often installed in a valve port which is normally plugged."





From this link: What is Power Beyond? : Explanation of the Power Beyond hydraulic system.

Situation or Problem

Need more explanation on what Power Beyond is used for.

Summary

The Power Beyond hydraulic system is used as a pressure/flow source for additional functions equipped with independent flow control valves. For example, planter vacuum motors, spray pumps, lift cylinders. Use Power-Beyond when:

Tractor SCV control is not needed.
Implement control valve requires external load sense signal to prevent pump operation at high pressure.
No other SCV outlet is available.

One major difference between a Selective Control Valve (SCV) and Power Beyond is an SCV has pressure/flow compensation whereas Power Beyond does not. An SCV section has an internal component referred to as a pressure compensator valve. The pressure compensator valve acts as a pressure regulator in the SCV section to maintain constant flow regardless of any other hydraulic function used.

For example, a hydraulic motor running on SCV #1 may require 10 gallons per minute of hydraulic flow at 1500 psi. If SCV #2 is engaged to run another hydraulic function that requires 6 gallons per minute at 2000 psi, the compensator in SCV #1 will balance this pressure change from hydraulic pump and maintain steady operation of the hydraulic function from SCV #1.

For more information on Power Beyond for remote hydraulic connections, refer to tractor Operator's Manual.




More info here: Hydraulic valve power beyond or high pressure carry over





.

 

[kennyd]

Felt the need to leave that comment yet you don't elaborate or correct it? Don't bother posting that then.

X2!!!

Done.

 

[J_J]

You know better, you just are not thinking.

http://www.surpluscenter.com/Drawing/DR9-5883-1.pdf

These sub plates are rated for 5000 psi, but maybe that is not high pressure.

Do you think those ports might be refered as a PB port. Yep, I think so.