Help me put together the ULTIMATE aux hyrdaulic setup.

[avc8130]

I'm getting ready to make a mother-load order from surpluscenter.com for hydraulic components to outfit my Kubota L45 once and for all. I want to add the following:

3rd Function. I'm figuring I need the following:
Solenoid valve Surplus Center - 12 VDC 10 GPM OC DA SOLENOID VALVE
Subplate Surplus Center - 1 STATION DO3 SUBPLATE OPEN CENTER
Connectors Surplus Center - HIRSCHMANN CONNECTOR
Various SAE -6 to JIC -6 fittings.
Various JIC-6 hoses.
Flat face quick couplers Surplus Center - 1/2" NPT FLUSH FACE QUICK COUPLER SET ISO 16028
JIC -6 to 1/2" NPT fittings.
Dust covers for couplers.

Rear:
This is where I need help. I have no idea what I need in the rear. I figure I want 3 valves just to have. I assume I'll wind up with top n tilt eventually. Maybe a valve to allow a log splitter or other hydraulic add on? I need help/suggestions here.

Backhoe Thumb:
I'm thinking a diverter valve setup off one of the hoe functions. Surplus Center - 12 VDC 13.2 GPM SAE 8 DOUBLE SELECTOR VALVE
Appropriate SAE -8 fittings and hoses to support.

How do my plans look? I really could use advice on the rear remotes obviously.

Thanks!

ac

 

[MtnViewRanch]

You need to rethink what tractor it is that you have there. Your pump puts out 25GPM. You are just asking for trouble with the 10GPM 3rd function setup that you are looking at. :no:

 

[avc8130]

You need to rethink what tractor it is that you have there. Your pump puts out 25GPM. You are just asking for trouble with the 10GPM 3rd function setup that you are looking at. :no:

I WISH I had 25 gpm to deal with. That is a combined number for 2 separate hydraulic pumps.

I have 11.8 GPM for loader/backhoe function.

ac

 

[MtnViewRanch]

I WISH I had 25 gpm to deal with. That is a combined number for 2 separate hydraulic pumps.

I have 11.8 GPM for loader/backhoe function.

ac

Ok, sorry for my mis reading of the specs. I did not look at the notations at the bottom of the spec sheet. I should have known better, and do actually, just in a hurry. :ashamed:

I would still be wary of the 10GPM valve though. It will heat up your oil some.

 

[avc8130]

Ok, sorry for my mis reading of the specs. I did not look at the notations at the bottom of the spec sheet. I should have known better, and do actually, just in a hurry. :ashamed:

I would still be wary of the 10GPM valve though. It will heat up your oil some.

Do you think that really matters on something like a grapple that is used for very short periods of time?

ac

 

[mikehaugen]

I would do 4 valves in the rear, since the tnt will use 2. That way you could add a 2 axis hydraulic blade or similar. Also think hard about what you may want to use them for to dictate what kind valve you buy- a cylinder or a motor, and what kind of detents you would want- do you want spring return to center or stay in one position or the other, do you want to have a float detent? Ideally, if money (and space) was no object, you would want a dozen valves so you could have a couple each with different functions. Of course that is out of the question I would assume, but you are asking about the "ultimate" hydraulic setup.

Also, about the log splitter, I would not necessarily plan on that since I think it would be better to leave a power beyond set available and mount a valve on the splitter itself.

 

[J_J]

Do you think that really matters on something like a grapple that is used for very short periods of time?

ac

Should have little effect as you probably will not be running the engine at WOT all the time.

You should consider a diverter/selector valve for the grapple using the joystick for the curl and grapple. This will also let you feather the grapple where as the 3rd function is full flow all the time.

 

[avc8130]

I would do 4 valves in the rear, since the tnt will use 2. That way you could add a 2 axis hydraulic blade or similar. Also think hard about what you may want to use them for to dictate what kind valve you buy- a cylinder or a motor, and what kind of detents you would want- do you want spring return to center or stay in one position or the other, do you want to have a float detent? Ideally, if money (and space) was no object, you would want a dozen valves so you could have a couple each with different functions. Of course that is out of the question I would assume, but you are asking about the "ultimate" hydraulic setup.

Also, about the log splitter, I would not necessarily plan on that since I think it would be better to leave a power beyond set available and mount a valve on the splitter itself.

This is why I need the help!

I see most tractors are offered with 3-valve aux. What are those typically?

Right now I have NO hydraulic accessories for the rear. This is just future proofing.

I assume a valve with "float" would be good for the "Top".
A "normal" valve would be good for the "Tilt"? This should probably be spring-center?

ac

 

[MtnViewRanch]

Do you think that really matters on something like a grapple that is used for very short periods of time?

ac

As a diverter it would make no difference, but you will have fluid flowing through that true 3rd function 100% of the time. I would use whatever size the OEM line is. There is a reason for that size, and that reason is so the fluid doesn't heat up and you have full unrestricted flow when you need it. Do as you will, you are the one that has to deal with the out come. There is a good chance that all will be fine. Or you can spend a few $$$ more and know that all will be fine, no matter what. Just get a different valve, sub plate & fittings and use 1/2" hose and all will be good, no mater what your conditions might be.

Just my :2cents:

 

[J_J]

In another post, MtnViewRanch posted a picture of three diverter valves that would let you use a single valve to operate three cyl.

If the remote valve had float, each of the three circuits would have float.

You would connect the three diverter valves in series with the work ports of the single valve and have 4 sets of QD.

Select say circuit #1 solenoid, and then the remote valve would provide DA operation to the valve plus float.

The first diverter valve in series has priority.

You could also do the 3rd function package using a solenoid valve and subplate to provide 4 sets of QD's.

The 3rd function valves would be in series with the PB out of the remote valve.

These valves will provide full flow with no feathering.