The cleaning and maintenance methods and steps of airless paint sprayers: 1. After the spraying operation is over, the airless sprayer should be cleaned immediately to remove the residual paint in various parts where the paint flows to prevent it from hardening and causing blockage. When cleaning, just replace the paint with the corresponding solvent and spray according to the operation, until all the paint in the body, high-pressure pipe and spray gun is sprayed out. 2. After using the airless paint sprayer for a period of time, it is necessary to clean the filter screen of the spray gun. The method is: remove the movable joint and the buckle, unscrew the handle of the airless spray gun, take out the filter element in the handle and clean it, and then put it back in order, Tighten. If the filter element is found to be damaged during cleaning, it should be replaced with a new airless sprayer filter element. 3. If the spraying is not smooth during the spraying process, check and clean the suction filter in time. Generally, the airless suction filter should be cleaned after each shift. 4. Regularly check whether the fasteners are loose and whether the seals are leaking. 5. Under normal circumstances, after three months of continuous use of the airless sprayer machine, open the pump cover to check whether the hydraulic oil is clean and lacking. If the hydraulic oil is clean but missing, add it; if the hydraulic oil is not clean, replace it. When replacing the hydraulic oil, first clean the oil cavity of the pump body with kerosene, and then add hydraulic oil with a volume of about 85% of the oil cavity, which is equivalent to about 10mm between the oil surface and the top of the pump body. 5. If you still need to use it the next day after each use, please do not drain the liquid in the suction pipe, body and high pressure hose pipe, or do any disassembly, just soak the suction pipe and discharge pipe spray gun in the It can be stored in the corresponding solvent; if it needs to be stored for a long time, the liquid in the machine should be drained, and it should be packaged and stored according to the new paint machine state.