Trying to figure our the best way to steer this machine. I first thought is was an OC system but has what looks like a priority valve (no13). Or Would this be considered a LS system?
Any thoughts on the best choices for getting a valve in the US?
A priority valve is not a sign that the hydraulic system is LS. E.g. my Fendt has a standard gear pump and is not LS - simple open center but has a priority valve on the orbitrol.
Check the pump(s) → if it’s a simple gear pump (or two) the hydraulic system is open center OC.
The priority valve serves only the amount of oil that is not consumed by the steering orbitrol into the working function.
You can only have LS if you have a variable pump.
Deleted, as I might be wrong about oc or not. The Fifth hose from orbitrol to priority valve, could tell priority valve to deliver more when used?
Find the orbitrol serial number/name plate, and see what type it is.
That makes total sense, variable pump ls, fixed pump oc.
Has gear pump supply so i gess it would be oc with priority valve.
Appears to be oc with priority. The photo of the eaton valve is the orbital. I have yet to find good info on it.
So the question may be how do you have an OC autosteer valve shift the priority as well?
We have rolling terrain and adjust boom height quite a bit as well as contoured fields. Just didn’t want poor or jerky steering because of this.
It does not make sense to care about the priority functionality when in autosteer mode - from my understanding it is too complicated.
You could check if you have two gear pumps.
One should be to supply the work functions (valves, hitch, etc.) Second one should be to supply the orbitrol. Only the flow from the second pump that is not consumed by the orbitrol could be used for the work functions. BTW this is the case with my Fendt Vario 312. If needed I can press a button and the additional flow from the priority valve flows not to tank but in the work function circuit. I use it only for front loader work.
But that means the work function will be supplied during auto steering mode but not with the additional flow from the priority valve.
The guy who sells this hydraulic blocks should give you an advice because he has got also solutions for Fendt with gear pumps.
Look at page 10, the upper left picture could be your system, LS steering unit and OC external valves.
You could check if any oil comes out of T hose from Steering unit? if not (when not touching steering wheel) then it must be a CC unit with LS