Periodic maintenance of the air dryer

Clean the back condenser of the equipment more than once a week with dry compressed air or copper;
Check the automatic drain valve for any blockages every month, and clean it if necessary;
Every three months, check whether the fan blades of the cooling fan have any bad vibration.
Check and tighten all screws, bolts and various fixtures annually;
Check, clean and tighten all electrical connections annually.