Losing Flow in the system
I have a single vane pump connected to a 3-position-4-way directional control valve (with relief), then to a pressure comp flow control valve at the pressure port regulated at a supposedly constant flow rate then to an outside system with its control and relief, ultimately to a set of cylinders before returning.
When various functions are engaged in the cab's control, ie joystick, we notice a variable drop in the flow leading the cylinders to slow down. This does not happen to every joystick function, only a few.
Can someone explain if it's possible to have variable flow in my setup? How? The flow characteristics of the pressure comp flow control valve is flat. I don't understand where I'm losing flow to. Can it be heat related? If so where can my back pressure build up? Thanks in advance