2. The base bolts are firm and reliable, and other fasteners are not loose;
3. The positioning of the locator is accurate, and there are no rat nests, bird nests, spider nests or other phenomena inside the sounding wheel;
4. Use the handle of a screwdriver to move the sounding wheel, which should rotate flexibly and without jamming;
5. Power on and use any alarm to test the machine for normal operation, with a loud and powerful sound;
6. The paint on the surface of the Emergency Siren Speakers is usually updated every two years and can be sprayed with self drying paint of the same color; If the surface paint is intact, the time can be appropriately extended. Special attention should be paid to cleaning the surface of the sounding wheel during spraying. The sprayed paint should not be too thick and should be controlled within 0.05 millimeters, otherwise it may cause the sounding wheel to be stuck.
After the maintenance is completed and the power is turned on and running normally, make a record, indicating the personnel responsible for the maintenance, the date of the next maintenance, etc., and then submit the record to the archive room for management.
Reminder: Regardless of the maintenance or upkeep of the Air Defense Siren Speaker, it is necessary to turn off the power supply of the alarm before proceeding with the operation.
