Near Intersection of I-35 & I-90 Southern Mn. | I would say that what you call four hoses would go to the SCVs. What you call returns I would call case drains and must go to the case drain port below the stack. If that is the way they are connected then I don't know what else to suggest.
I run a planter with two vac pumps and the CCS pump as well as a spray pump without issues on an 8310R, although I found I did need to move things around so my spray pump runs off of SCV #2 as it didn't seem stable on #5. My total flow is much less than yours.
Edited by tedbear 8/11/2019 13:39
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2014 JD 8320RT hydraulic issue
