[Markus K.]

Thanks guys!

here my solution for the hydraulics inside the upper structure. I'll use a 3 section main valve, whitch handles the boom, stick and bucket. Exactly it is a double section valve (stick and bucket) and a single section valve (hoist) in one housing, it has two oilsupports and can be operated with two pumps..
This valve is mounted to the main distribution block, whitch also carries a smaller valve on the right side for operating the quick coupler. This block lowers the amount of hoses and helps cooling the oil. And it gives a clean look.
To support all valves with oil I constructed a pressure relief valve with 3 outputs, each seperated from the other with a check valve. A 4th output is for the pressure gauge.