the failure of the hydraulic control system

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the failure of the hydraulic control system to deal with the failure of the hydraulic control system to deal with the failure of the phenomenon of the hydraulic control system troubleshooting methods (1) of the actuator control signal input system does not work 1) Check the hydraulic system is normal to judge the hydraulic pump, overflow the valve is working 2) Check whether the actuator card lock 3) Check the servo amplifier input and output signals are normal phenomenon to determine its work. 4) Check the hydraulic servo valve input and changes, hydraulic output signals to determine whether the hydraulic servo valve. Servo valve failures in general by the manufacturer to deal with (2) movement of the actuator to a direction control signal input system in the end 1) Check that the sensor access system 2) check the sensor output signal and the servo amplifier is incorrect hydraulic hose and fittingsconnection of positive feedback 3) check the servo valve internal feedback faults that may occur (3) inaccurate 1) Check the servo valve zero bias signal to adjust the normal 2) Check the servo valve, zero is normal 3) Check the servo valve actuator zero dither signal whether to adjust the normal (4) the actuator oscillation 1) check the servo amplifier magnification are adjusted too high 2) Check the sensor output hydraulic hose crimping machinesignal is normal 3) Check the system oil pressure is too high (5) implementation of the components can not keep up input signal changes the magnification of a) Check the servo amplifier is adjusted too low 2) Check the hydraulic system is too low 3) Check the actuator and motion mechanism between the clearance is too large (6) The executive body is a creeping phenomenon 1) oil road gas is not drained 2) the friction of moving parts 3) The oil supply pressure is not enough