Before starting the mud pump, please check whether the inlet and outlet pipes are blocked, whether grease is added to the front and rear bearings, and whether the packing is full. When the mud pump is working, it should be equipped with a high-pressure clean water pump to transport clean water that is greater than the pressure of the mud pump to the anti leakage packing, and protect the packing. The flushing pump should not be turned off during the operation of the mud pump, otherwise it will cause rapid wear and tear of the sealing part. The reasonable clearance between the impeller and the guard plate has a significant impact on the service life of the mud pump. If the clearance is not reasonable, vibration and noise will occur during the operation of the pump, and the overflow components will be quickly damaged. Therefore, when replacing the impeller, attention should be paid to ensuring that the clearance meets the requirements of the drawing. The adjustment of the clearance can be made through the adjustment screws on the rear bearing body. The allowable suction head of a mud pump is measured when transporting clean water, and the impact of mud on suction capacity should be considered when pumping mud.