good reference for blocks attach beside the valves

[mohammdyou]

I wonder to know how can I find the inputs and outputs of the blocks that is beside the valves and attach to it. if the block have some kind of standard. is there any good resource that you can introduce to me?
thanks

[rickbatey]

Every machine is different as each OEM has their own standard. You will need to look at the hydraulic prints for the valve number and what that valve is used for. Some valves may even have two or more uses depending on hydraulic circuit design.
Rick.