HYDRO-DRIVE

A hydro-drive has an oil tank, a source of pressure (pump), a pressure hydro-line, this through distribution mechanism is connected to the executive mechanism, this through the nose and distribution mechanism is connected to the discharge line. The pressure and the discharge hydro-lines are connected to each other by bypass valve and through throttle û to safety valve. The hydro-drive has control unit for control and signaling, this is connected to sensor of control of the hydro-system. To decrease losses of working liquid from the hydro-tank and to increase reliability of operation of the hydro-drive the sensor is arranged as a sensor of oillevel installed in the tank, and the unit for control and signaling includes threshold circuit, this forms the signal from the sensor of oil level corresponding to three levels of oil, and at emergency level of oil the threshold circuit switches on the alarm signaling of the information indicator panel and through electronic key opens the additional controlled bypass valve connected to the pressure and the discharge hydro-line in parallel to the safety valve.