When the car washing machine is in normal use, it is necessary to remove the water from the air compressor every day, and check whether the pressure is normal, ensure that the wax water and detergent used in the cleaning have sufficient weight, and clean up the impurities inside the conveyor belt. It will ensure sufficient supply of power and water sources to prevent equipment failure caused by energy chain scission. After using it for a period of time, it is necessary to check the whole equipment to ensure the integrity of each component and replace the damaged part in time.