Airless spray machine repair and maintenance mainly include the following aspects ‌ :

Nozzle maintenance ‌ : The nozzle is a key component of the spraying machine, its state directly affects the spraying effect. After use, the nozzle should be cleaned in time to prevent the paint from drying up and blocking. Regularly check the wear of the nozzle, if there is damage or deformation should be replaced in time, and choose the appropriate nozzle model and material to meet the needs of different coatings ‌.

Maintenance of the filter ‌ : The filter is responsible for filtering out impurities in the paint, protecting the pump body and nozzle. It is recommended to clean the filter regularly to remove accumulated impurities and dirt and ensure smooth flow of paint. If it is found that the filter is damaged or the filtration efficiency is reduced, replace the new filter in time ‌.

Pump body lubrication and inspection ‌ : pump body is the core component of airless spray machine, its performance directly affects the overall performance of the spray machine. The pump body should be regularly lubricated and inspected, using special lubricating oil or grease, and paying attention to the tightness of the pump body, wear conditions and the flexibility of the transmission components to ensure that the pump body runs smoothly and without abnormal sound ‌.

Replacement and inspection of the seal ‌ : although the seal is small, its role can not be ignored, which is directly related to the sealing performance and service life of the spray machine. Periodically check the status of the seals. If aging, cracking or deformation is found, replace the seals in time, and ensure that the installation position is correct and secure to avoid leakage ‌.

Hydraulic oil inspection and replacement ‌ : airless spray machine after three months of continuous use, should open the pump cover to check the hydraulic oil condition. If the hydraulic oil is clean but insufficient, it should be added; If the hydraulic oil is not clean, it should be replaced. When replacing the hydraulic oil, clean the oil chamber of the pump body with kerosene first, and then add the hydraulic oil of about 85% of the oil chamber volume ‌.

Daily cleaning and maintenance ‌ : After the spraying operation is completed, the airless spray machine should be cleaned immediately to remove the residual paint in all parts of the paint to prevent it from hardening and blocking. When cleaning, replace the paint with the appropriate solvent and spray according to the operation method until the paint in the body, high pressure pipe and spray gun is discharged ‌.

Troubleshooting ‌ : airless spray machine in the process of use may appear pressure weakening, paint is not smooth and other faults. These failures are usually caused by paint problems, blocked nozzles, or blocked transmission devices. Solutions include adjusting paint viscosity, cleaning nozzles and transmission devices ‌.