I am planning on adding hydraulic circuits to my 1977 Massey Ferguson 1655 by using 6/2 valves. Here is what I know (tell me if I am wrong somewhere)
The hydro-static unit is a Sauer Danfoss 15. From the specs, the ports for the implements are 9/16-18 (SAE #6 if I am correct) and the flow specs are
3.50 GPM @ 200psi - 3300rpm
0.25 GPM @ 800psi - 3300rpm
The valves I am looking at are Bosch Rexroth L710 family of 6/2 valves, with SAE #4 ports. They advertise max 4500psi 6.6GPM.
Would those valves have any impact on the implements? I am mainly wondering since the implement ports of my pump are SAE #6. I don't remember if the tractor's tubes/hoses are 3/8" or 1/4", there is a 90° between the pump's ports and the hoses, they MAY be reducing the size. Why are the ports SAE #6 when it seems SAE #4 would be overkill?
I plan on keeping the original tubes/hoses between the pump and the main valves of the tractor, then run 1/4" tubes/hoses to the L710 valves and continue with 1/4" tubes/hoses from the L710's to the implements.