1. The coaxiality deviation between the drive shaft of the hydraulic pump and the motor drive shaft is less than 0.1MM. Generally, flexible couplings are used for connection. V-belts are not allowed to directly drive the pump shaft to prevent the pump shaft from being affected by excessive radial forces. Normal operation of the pump;
2.The rotation direction and inlet and outlet of the hydraulic pump should be installed as required;
3. The suction height of various hydraulic pumps is generally less than 0.5M.