Module for Main Hydraulic Valve Block: The main hydraulic block is of a cartridge type and performs high flow for the electrohydraulic functions to be specified: e.g. 5 in DN20 (for leg and ram cylinders) and the remainder in DN12. The internal channels are large enough to provide full supply for 2 functions in DN20. The connections for (P) high pressure supply and (R) return lines are in DN25.
The function is balanced in connection to the leg valves to reach a timely cycling of the shield. Cartridge valves and a last chance filter can be maintained from the frontside, hoses connect to the back. The pilot control valves, 2functions each, are mounted on top equipped with manual override key-buttons. The electronic valve driver and a back flush filter pm3/val/fibf/af25 (option) are side-mounted as part of the block. Filter flushing is controlled by the support unit or by manual override on the filter element directly, while operating buttons.