1. After the installation of the cell unit door, it is best to tear off the protective film immediately. Over time, the protective film will be difficult to tear off. If this happens, it is recommended that you put a layer of kerosene on the surface of the door (or Anti-rust oil), then tear off after a period of events.
2. Do not touch the strong alkali and strong acid on the surface and the collision of sharp and hard objects. (If serious rust-like stains appear, use sanding cloth to pull the sand along the sand pattern, and spray it on the surface with anti-rust oil for protection.)
3. If there is a general stain on the surface, use a cotton cloth dipped in talcum powder or industrial moon cream to test.
4, the surface appears small scratches or scratches, use sanding cloth to smooth the surface texture test.
5, must be done (half a month) regular inspection and maintenance, such as abnormal sound when switching, inject a small amount of lubricant in the hinge active position, continuous switch until the sound is eliminated.
6. Regularly add a small amount of lubricating grease to the mechanical hinges of the door hinges, lock tongues, latches, etc. to maintain lubrication, so that the doors and locks can be opened and closed flexibly.
7. It is strictly forbidden to insert chores or inject various oils into the lock.
8. The doorbell and alarm battery should be replaced regularly to avoid ringing too small or not. When the doorbell or alarm is not used for more than half a year, the battery should be taken out.
9. Please keep the expansion bolts fastened to the wall and door frame.
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