As others have said, connecting a backhoe, loader, hydraulic motor etc to the SCV's is an azz backwards way of connecting.
As the backhoe has it's own valves. Use the "T" return connection shown in the excellent image tims has. Supply oil is also T'd from the high pressure line .
My 10A backhoe on the 1640 with the modest 1.4cu" pump rated 13.5gpm at 2500rpm is way too fast to control. If a control valve is wide open and if rpms are above 1300-1400rpm.
Of course it's not connected to an scv and it returns via a ported filter connection.
This post was edited by buickanddeere at 13:28:51 09/07/14.
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