Speeding up hydraulics?

[fordtrucknut]

I've got an xr3037, the loader hydraulics are extremely slow, always have been since new, is there a way to up the speed on these?

 

[George2615]

Running higher RPM is only way to speed up loader. I have the same tractor

 

[Scottw32]

You might be able to swap out the hydraulic pump for a bigger one. Deplorable diesel has a 16cc pump for the XR31 and XR41 series tractors. I don’t know if there’s one made for your tractor though. Wouldn’t hurt to talk to talk to them.

https://deplorablediesel.com/shop?olsPage=products/16cc-hydraulic-pump

 

[Walter L]

I've got an xr3037, the loader hydraulics are extremely slow, always have been since new, is there a way to up the speed on these?

There is a way thats has been discussed on I think on this web site on adjusting the relief valve to increase the pressure from the pump, this could be your problem from new a faulty adjusted relief valve or the valve it self. Sorry i cant give you the procedure.

 

[Avenger]

You might be able to swap out the hydraulic pump for a bigger one. Deplorable diesel has a 16cc pump for the XR31 and XR41 series tractors. I don’t know if there’s one made for your tractor though. Wouldn’t hurt to talk to talk to them.

https://deplorablediesel.com/shop?olsPage=products/16cc-hydraulic-pump

I got 3 years left on my warranty, when that is up, I might be going with that pump.

 

[4570Man]

Are you running the tractor at sufficient RPMs?

 

[Scottw32]

I got 3 years left on my warranty, when that is up, I might be going with that pump.

Same here. I love my LS but they can definitely speed up the hydraulics a bit.

 

[fordtrucknut]

Was messing around with the controls to see if I could get some more speed. Found these in the controller had backed out from the cables inside the housing. Tightened them back down and the hydraulics are considerably quicker then before. These tractors are still a lot slower than the Kubotas and Mahindras I've ran in the past.

*** note this is just a picture off the web not of my LS, but it is the same control handle as the LS, the parts circles are what had backed out.

 

[k0ua]

There is a way thats has been discussed on I think on this web site on adjusting the relief valve to increase the pressure from the pump, this could be your problem from new a faulty adjusted relief valve or the valve it self. Sorry i cant give you the procedure.

Making changes to the relief valve will in NO way speed up the hydraulics. The hydraulic pump in your open center system on your tractor DOES NOT put out pressure. Pumps put out flow. Pressure rises when the flow meets an obstruction. In an open center system the pump has a continuous flow thru the control valves and back to the "tank". The pressure in the system is usually less than 100 PSI and that is because of the resistance of the piping and control valves that any pressure is formed. When you throw for instance the control valve to direct the fluid flow to look into the hydraulic cylinder/cylinders of a FEL for instance then and only then does the pressure in the system rise. It rises because the cylinders are an obstruction to the flow. The pressure continues to rise until either the hydraulic cylinder begins to move or the relief valve opens. Again the relief valve has nothing to do with the flow rate that your pump puts out or the rate in which the hydraulic cylinders fill with the fluid on one end and release fluid out the other side of the cylinder.

What DOES affect your hydraulic speed is the flow rate of the pump and the size of the displacement of the cylinders. The setting of the relief valve has NOTHING to do with this. The setting of the relief valve ONLY set the point that the fluid will be diverted back to the tank when that preset pressure is exceeded.

If you want your hydraulics to work faster you must have a pump with a higher flow rate (new pump) or cylinders with smaller dimensions so that the pressure will build quicker in the cylinders and will move them faster. If you have cylinders with smaller displacements then you will have less lift . You trade speed for lift ability. You could just as well as asked, "how do I increase the lift ability of my FEL"? The essayist way is increase the size of the cylinders. What are the downsides? Now the FEL will be much slower to lift. Of course the geometry of the FEL frame also figures into the lift ability

Key takeaways of this informative rant:

Pumps DO NOT make pressure. Period.
There are trade off's of design. YOU NEVER GET SOMETHING FOR NOTHING. Period.
If you want to have faster hydraulics, you trade off lift ability for a given pump flow rate.
Test a tractor before you buy it. If you don't like the speed, don't buy it. If you don't like the lift ability, don't buy it.
There is no good, cheap and easy way to change these things.

 

[k0ua]

The next question some of you might have is "why do people adjust their relief valves"? Because they want to increase the total weight that their FEL will lift. Note, this has nothing to do with the speed that their FEL will lift. The speed is still governed by the flow rate of their pump and the displacement of the cylinders.

One poster managed to increase his speed of lift by adjusting (taking out the slop) of the remote control cables to valve interface. If he could not fully open the control valve, then this would indeed "increase the speed" as now the flow rate going into the cylinders would be increased as the valve is now fully opened. Also don't forget that the fluid going into the cap end of the cylinder to lift must also have the fluid going OUT of the rod end of the cylinder back to tank for the cylinder to move up and lift. Likewise when you reverse that flow path to apply flow to the rod end of the cylinder and open the valve on the cap end to return its fluid to the tank. The cylinders on your FEL are double acting.