Hydraulic control system for loading machine or forklift truck has lift cylinder connected to set of multiway regulating valves

摘要

The hydraulic cylinder for the lifting forks or tool has chambers (46,48) on either side of the piston (47) connected to the control system (1). The system includes a 4/3-way valve (10) and a 2/2 pressure valve (20) connected to a hydraulic high-pressure reservoir (50). Fluid may be released to a low-pressure reservoir (70) via a blockable non-return valve (30).