I agree you probably know more about it than I do, but I got my numbers from the kubota spec sheet from their literature about the MX series. It says the main pump capacity is 9.5 gpm and the steering requirement is 4.9. I always thought the main pump capacity was the total flow and the steering comes out of that. Am I reading that wrong?
The second picture has the hydraulic part of the spec enlarged so you can see it hopefully. Picture posted from my phone are not always the best.
On models like the Bx's, B's, and a limited number of L's the pump is a single section pump that the flow is divided between the steering, the loader, three point or remote valves.
Thus the available pump flow is minus the steering flow amount.
But on some L's and all MX's and all M's they use a two section or two or three separate pumps and they deliver 2 or 3 separate flow amounts.
Also the verbiage is slightly different.
On BX's and B's and some Limited L's they say Total system hydraulic flow
Where on the other L's and the MX's and M's they say each hydraulic flow amount of each system and don't add them up because they don't inter mix the flows.
Does that help clear it up?
The available flow on an MX5200 to the loader, three point, and auxiliary spool valves is the 9.46GPM