Loader hydraulics question

[speedy5966]

Hi Guys! OK, so I'd like to replace the loader valve on the L219 loader on my B7100. The factory one is very sloppy, and sticks slightly in the down position. I'd also like to use the loader hydraulics for a power steering system. My questions are:
1) Is it possible to use the loader hydraulics for power steering. I realize I won't be able to use both at the same time, or at least not very well, but will it work?
2) With a 2 spool valve with power beyond, will I be able to connect the power steering to the power beyond ports?
3) Does anyone know the pressure on the 3 point hydraulic system, and would it be better to use that, instead of the loader hydraulics?

Thanks guys!!

 

[North Idaho Wolfman]

Yes it would be a lot better to use the on board hydraulic system (three point hydraulics) to run power steering, that way if you remove the loader the steering doesn't go too.
If you want it to not ever be an issues of using one or the other, put a priority valve in the system, it will allow the steering to always work.

 

[speedy5966]

Thanks Wolfman! I knew I could count on you! I did think about a prop valve, but I just don't think the situation will come often enough to warrant all the extra plumbing.
Any idea on the PSI of that system? Also, will standard compression "T" fittings be the easiest way to tap in?

Thanks again!!

 

[North Idaho Wolfman]

Thanks Wolfman! I knew I could count on you! I did think about a prop valve, but I just don't think the situation will come often enough to warrant all the extra plumbing.
Any idea on the PSI of that system? Also, will standard compression "T" fittings be the easiest way to tap in?

Thanks again!!

You shouldn't use compression fittings, and you can't use Tee fittings, it's an open system, that means that the system remains open until a valve closes and builds pressure, the system is a complete loop.

Unless you use very expensive compression fittings it's very unwise to use compression fittings because they can not handle the 2000+PSI pressures.
Older Kubota hydraulic lines are also a non standard size, so the proper compression fittings are hard to get.
You're much better off with a welded on fittings, and you will need a loop to the steering controller, so fluid goes in and comes out.

Make sure whatever controller you get is an open system controller as a closed system controller will not work.