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Message: <blockquote data-quote="shawn macananny" data-source="post: 59790" data-attributes="member: 7155"><p>I pulled out my kubota manual i bought for it and found a diagram of the hydrostatic system. It looks as though the "main hydraulic pump" sucks oil from the top of the case out of the pumps as it's marked as either case or suction oil pressure (since its not in color) and it goes through the cooler into the pump that powers the power steering. I went outside and looked where it is leaving the case and i can swivel the 90* degree fitting with my fingers so i am going to try to fix that tomorrow and see if it works. It just has a rubber line hose clamped onto it and being its at the top of the case i wouldnt expect to see any oil leaking out. It seems to make the most sense at this point. As loose as it is if this fitting were under any pressure i would expect it to be leaking so i am assuming it is vacuum though i have never seen a pump that pulled fluid all the way through a cooler, that is how the digram is in my book.</p></blockquote><p></p>