一般液压系统可按图所示分为能源、控制和工作三大部分。控制部分又可分控制能源和控制工作两部分。检修时,首先开动油泵电机,检查有无大面积泄漏以及电机是否反转。看看油箱油位,然后,按下压力表开关检查其系统压力。如有压力,可进入第二部检查;如没有压力,则应检查溢流阀(Y-10B),把阀调节到压力最高极限(即将阀按顺时针方向旋到底)。如仍无压力,则关闭电机,换上同型 General hydraulic system can be divided into energy, control and work as shown in the three parts. Control section can be divided into two parts control energy and control work. Overhaul, first start the pump motor, check whether there is a large area leakage and the motor is reversed. Look at the tank level, and then press the gauge switch to check its system pressure. If there is pressure, go to the second inspection; if there is no pressure, check the relief valve (Y-10B) and set the valve to the maximum pressure (ie, turn the valve clockwise all the way down). If there is still no pressure, then turn off the motor, put on the same type