Check the slurry pump before operation: 1) Check the motor rotation direction consistent with the provisions of the pump rotation (please refer to the corresponding model manual). In the test motor rotation direction, should be a separate test motor, must not be connected with the pump test. 2) Check whether the elastic pad in the coupling is intact or not. 3) Check that the motor shaft and pump rotate concentrically. 4) handcart car (including motor) pump should not be astringent and friction phenomenon. 5) Check the bearing box to join the bearing oil to the oil mark indicating position. 6) Slurry pump should be started before the shaft sealing water seal (mechanical seal for the cooling water), at the same time to start the pump inlet valve, close the pump outlet valve. 7) Check the valve is flexible and reliable. 8) Others, such as anchor bolts, flange seals and bolts. Piping system is installed correctly, solid and reliable.