对照液压原理图，检查所有的球阀、蝶阀等，确保所有手动阀门处于正确的打开

Compare the hydraulic schematic diagram, check all ball valves, butterfly valves, etc., to ensure that all manual valves are in the correct open and closed positions; <br>compare the hydraulic schematic diagram, check that various valves, especially the one-way valves, are in the correct position and direction; <br>compare the hydraulic pressure Schematic diagram, check each pipeline to ensure that the pipeline connection is correct; <br>adjust the pressure of the overflow valve of the cooling and filtering circuit to the lowest pressure, respectively inching the motors D4 and D5 to ensure the steering and cooling of the 3KW motor, and the vane pump for filtering. Requires consistent steering. <br>(Note: Before leaving the factory, the pressure of the overflow valve has been adjusted properly. If it is not necessary, there is no need to adjust the pressure again, just make sure that the motor rotates in the correct direction)

Check all ball valves and butterfly valves according to the hydraulic schematic diagram to ensure that all manual valves are in the correct opening and closing position;<br>Check that all kinds of valves, especially one-way valves, are in the correct position and direction according to the hydraulic schematic diagram;<br>Check each pipeline according to the hydraulic schematic diagram to ensure that the pipeline is connected correctly;<br>Adjust the pressure of the overflow valve of the cooling and filtering circuit to the minimum pressure, and jog the motors D4 and D5 respectively to ensure that the steering of the 3KW motor is consistent with the required steering of the vane pump for cooling and filtering.<br>(Note: the pressure of the overflow valve has been properly adjusted before leaving the factory. If it is not necessary, it is not necessary to set the pressure again, but only to make sure that the rotation direction of the motor is correct)

Check all ball valves, butterfly valves, etc. according to the hydraulic schematic diagram to ensure that all manual valves are in the correct opening and closing positions; Check that all kinds of valves, especially check valves, are in the correct position and direction according to the hydraulic schematic diagram; Check each pipeline according to the hydraulic schematic diagram to ensure that the pipeline is connected correctly; Adjust the pressure of the overflow valve of the cooling and filtering circuit to the lowest pressure, and jog the motors D4 and D5 respectively to ensure that the steering of the 3KW motor is consistent with that of the cooling and filtering vane pump. (Note: Before leaving the factory, the pressure of the relief valve has been properly adjusted. If it is not necessary, it is not necessary to adjust the pressure again, just make sure that the motor rotates correctly.)