（1）Check whether all lubrication meets the relevant lubrication regulations.

（2）Turn on the air source, and the air source pressure of the air control cabinet is 0.4 MPa.

（3）Open the sealed water pipeline, the water pressure is 0.2MPa.

（4）Open the filter cloth cleaning pipeline, the water pressure is not less than 0.4MPa, and check whether the flushing position and type are correct, and the spray washing water must overlap evenly.

（5）Jog the motor of the filter to check the direction of rotation.