Clarification on Power Beyond

[woodlandfarms]

OK... Kinda confused but I think I have it.

A system that has power beyond allows fluid to flow to an additional control valve whilst operating the primary valve, correct?

So, I have a log splitter valve. It has in, out and power to the cylinders. I assume that this is NOT a power beyond system.

All of this goes to my next project. JJ, I am sure you can help me as you kinda know my tractor.

I am going to add another directional control valve. At the moment funds are tight, so I am taking the risk on a Logs Splitting valve to work for me.

I have no clue as to what my spool is that controls my bucket, but it is not fancy like a upscale Deere. So how do I tell if my spool has power beyond? If it does not have Power Beyond how do I Hook up another cylinder? Use the output or put a T on the input from the pump and run a line to my Spool. This spool is only powering my grapple at this point and will never drive anything more than a cylinder.

Thanks everyone

Carl

 

[J_J]

Carl,

I don't think the valves on our PT's have PB. I supposed they were not thinking of adding anything else to the circuit. There are some on here that say you can just valves in series.
Now, when you are not using any of the valves or not steering, the fluid is being sent back to tank. If a valve that had the same pressure rating on the input as the output, perhaps you can get away with it. With an open center log splitter valve, in series, the fluid is just running through all the valves, and back to tank. The first valve upstream, will take priority, and that is the steering valve. When not steering, the fluid is sent out the steering valve and that is called PB. It then goes to the joystick valve which is the lift and tilt, and aux. So when you are lifting, the log splitter valve, is not getting any fluid. You can not use a tee in the circuit. You need to have a pressurized line. and with the log splitter valve in the circuit, you will have 3000 psi available for whatever is hooked to the log splitter valve.

You have a PTO circuit there which is not used much, with 18 GPM available That fluid is just going through the PTO valve and back to tank. If you were to put a 18 GPM log splitter valve and plug it into the QD's off the PTO. you will have a supply of fluid independent of the other systems, and activated by a switch.

So what are you going to connect to the log splitter valve?

 

[woodlandfarms]

I am tired of running my backhoe / grapple off of the Lean Over and quick attach valve. And I am cheap, and I like the idea of a control on the left side of the steering wheel. So, I am going to direct connect my quick disconnect to that cylinder, and leave it dedicated, and run a couple of new hoses from the new Log Splitter spool to run the backhoe / grapple, or any of the other "3rd level hydraulics" that the old quick attach operated.

I like the log splitter detent feature and will set it so that I can use it when operating the grapple (lock it into the open position and move in for the next grab)

Oh, and I bought a new cylinder to replace my bent one. It is a friggin monster compared to that other dainty POS. Actually it is kinda huge. I will take comparison photos when I go up for the repair.

Oh, and yeah, I do not want to run the grapple off the PTO. This spool takes up to 25GPM so I guess I could, but I have to think this through.

I really wanted to get away from so many connectors. Just make the PT very simple.

I have to check my circuit BTW. I am not totally sure that on the 1850 the steering and the lift tilt dump are on the same circuit. They are driven by the same pump, but they go to a manifold circuit (the charger circuit) and then split out.

But I have to dbl check that. With PT's fantastic manual in hand, It won't be too hard ;-)

Carl

Carl

 

[J_J]

Carl,

On the detent feature on the log splitter, that is designed to return the cyl automatically, and kick off at about 1200 psi. There is another log splitter valve with two levers, and it works by pushing both lever, foward into detent to split, and when the cyl goes to full extend, it automatically retracts, and when it is fully retracted, the levers kick back to neutral.