log splitter off FEL pump

[RickB]

Glad to hear it. You are very welcome.

 

[CoyPatton]

The relief valve would not be in constant operation, no more or less flow would be passing through the loader valve than in normal operation.

But much more through the curl function than normal operation of the curl. No one uses the curl function continuously. Once that bucket is curled it is curled. Once there fluid deadheads and whines. Then you release. It will have a bit of that effect every time the splitter valve is not in use but the curl us forced to function. Yes less if the splitter valve returns fluid, but more than if the curl/dump is in neutral/centered non usage position where no fluid goes to either function.
You seem to believe that function acts as the main valve, but it does not! Fluid only flows to the loader raise/lower and/or the curl/dump as the valve is moved. Thus when you force the valve into operation things change. Otherwise it flows undisturbed through the valves and back to the tank. Every valve I have pulled apart or looked at drawings of have smaller flow ports to send fluid to a function that the centered flow. So at a min his setup is creating greater wear on the valve and its parts. Other post indicate it is out of production valve, so parts availability are less and that status will only increase in difficulty to obtain.

If you look at any of my post, you will never see that I said this would not work, but merely pointed out that it is a poor way to get there.

 

[RickB]

You can comment all you want. The OP has much faster splitter cycle times, he is happy. Your understanding of deadheading as it applies here is incorrect and you will either figure it out or you will not. The log splitter valve is an open center valve. Develop an understanding of what that means. But as others have suggested, you are wrong, it is as simple as that. Enjoy your day.

 

[CADplans]

No one uses the curl function continuously.

Once that bucket is curled it is curled.

Wrong,,, again,,

there are MANY aftermarket tools for loaders that have used the curl function to operate hydraulic motors,

OR, what if that valve is used to operate a LARGE hydraulic cylinder? like on a roll-back truck,,
Some of those cylinders can take over 5 minutes to extend, or retract,,

I have never seen a valve that stated "Maximum -24 cubic inch displacement per minute of use" or something like that.

If you get near some mining equipment, there are cylinders that can displace 100 gallons,,
the same valve can work, even at this tractors flow rate.

The valve is rated for continuous flow,, an itty bitty valve is 6 GPM,, and one that small is almost never used,
and VERY hard to find.

And, actually, a hydraulic motor version of a valve will be identical,,
except, sometimes ;
1) the valve will have detents that hold the valve in position (rather than bungee cords!)
2) typically, the hydraulic motor spool will allow the hydraulic motor to "free-wheel" in the neutral position, rather than stop.

IT would be incorrect to design in a valve that has a flow rate below that of the pump,,
if that was the design, then the oil would heat constantly anytime the valve was actuated.

 

[K5lwq]

But much more through the curl function than normal operation of the curl. No one uses the curl function continuously. Once that bucket is curled it is curled. Once there fluid deadheads and whines. Then you release. It will have a bit of that effect every time the splitter valve is not in use but the curl us forced to function. Yes less if the splitter valve returns fluid, but more than if the curl/dump is in neutral/centered non usage position where no fluid goes to either function.
You seem to believe that function acts as the main valve, but it does not! Fluid only flows to the loader raise/lower and/or the curl/dump as the valve is moved. Thus when you force the valve into operation things change. Otherwise it flows undisturbed through the valves and back to the tank. Every valve I have pulled apart or looked at drawings of have smaller flow ports to send fluid to a function that the centered flow. So at a min his setup is creating greater wear on the valve and its parts. Other post indicate it is out of production valve, so parts availability are less and that status will only increase in difficulty to obtain.

If you look at any of my post, you will never see that I said this would not work, but merely pointed out that it is a poor way to get there.

Think about a remote valve with detent. They have been used for years to run a splitter or other equipment needing constant flow. Many people have used the bungee trick on rear remotes for this very purpose. The loader valve is just a 2 spool valve. The OP will not cause any issues if he continues to use it this way.

 

[LouNY]

Well, I tapped into the curl lever for supply and ended up going into the drain plug for the reservoir. It's in the side of the lower frame assembly. I tried a tee in the breather to the tank but it was too much pressure and blew out the breather. It works great, huge improvement over auxiliary hydraulics, thanks everyone for the help

Glad to hear it's working good for you.

 

[WranglerX]

https://www.motionindustries.com/products/sku/00888917

Lol........such a deal from Motion Industries........

Ummm....

https://www.motionindustries.com/products/sku/00888982

Bit better price

Dale

 

[CoyPatton]

Think about a remote valve with detent. They have been used for years to run a splitter or other equipment needing constant flow. Many people have used the bungee trick on rear remotes for this very purpose. The loader valve is just a 2 spool valve. The OP will not cause any issues if he continues to use it this way.

But is this a detent valve? Not if it has ti be jerry rigged!
My opinion is you have given less than good advice!
But so be it!
As for using this valve to use large stuff, yes it will work, but.... no one depending on it for production would do it for longer than it takes to get the right valve!
Flow restriction will take care of that quick!
And just because you can should you?
Lots of people here want to be right probably knowing that it is bad advice but don’t care.
Only someone with more time by boatloads is going to use a valve designed for a FEL on large cylinders as mentioned. If it paying the guy to hold that lever, it wants that cylinder moving at the fastest speed it will not 5gpm rated valves!

 

[ptsg]

But is this a detent valve? Not if it has ti be jerry rigged!
My opinion is you have given less than good advice!
But so be it!
As for using this valve to use large stuff, yes it will work, but.... no one depending on it for production would do it for longer than it takes to get the right valve!
Flow restriction will take care of that quick!
And just because you can should you?
Lots of people here want to be right probably knowing that it is bad advice but don’t care.
Only someone with more time by boatloads is going to use a valve designed for a FEL on large cylinders as mentioned. If it paying the guy to hold that lever, it wants that cylinder moving at the fastest speed it will not 5gpm rated valves!

A detent valve is pretty much the same as the curl spool being held with a bungee cord, instead of the cord, it uses a couple balls and spring to hold it in place.

I'm still trying to understand why are you still beating a dead horse...

 

[CoyPatton]

Wrong,,, again,,

there are MANY aftermarket tools for loaders that have used the curl function to operate hydraulic motors,

OR, what if that valve is used to operate a LARGE hydraulic cylinder? like on a roll-back truck,,
Some of those cylinders can take over 5 minutes to extend, or retract,,

I have never seen a valve that stated "Maximum -24 cubic inch displacement per minute of use" or something like that.

If you get near some mining equipment, there are cylinders that can displace 100 gallons,,
the same valve can work, even at this tractors flow rate.

The valve is rated for continuous flow,, an itty bitty valve is 6 GPM,, and one that small is almost never used,
and VERY hard to find.

And, actually, a hydraulic motor version of a valve will be identical,,
except, sometimes ;
1) the valve will have detents that hold the valve in position (rather than bungee cords!)
2) typically, the hydraulic motor spool will allow the hydraulic motor to "free-wheel" in the neutral position, rather than stop.

IT would be incorrect to design in a valve that has a flow rate below that of the pump,,
if that was the design, then the oil would heat constantly anytime the valve was actuated.

1) your boss on this mining equipment where you put in such a small valve is likely to come unglued before he sends you packing permanently!
Since you have now stepped into a environment controlled by more regulations than are reasonable even by crazy government standards, when you strap that valve open with your bungee cord, if someone gets hurt due your negligence, you are likely be charged criminally in relation to that injury in addition to becoming unemployed!
How foolish to try to justify yourself in such extremes.
Will it function? Never the question, but that appears to be beyond your comprehension.
The question is that should you do it? You have answered beyond any any all doubt that you lack that judgement with your rant!