The locks also need to be carefully maintained.
1. Lock in the process of daily switch door, it is best to hold hands to lock the tongue into the lock body, close the door and then let go, do not slam the door, otherwise it will reduce the service life. Do not wipe the lock with a damp cloth and hold hands, because some of the metal material lock will rust, alloy material lock will wear off the coating, loss of aesthetic effect.
2. Often maintain the lock body drive parts have lubricants to maintain its transmission smooth and prolong the service life. It is recommended to check for six months or one year and check whether the fastening screws are loose to ensure fastening.
3. Lock in the use of the process, regular (six months or a year) or in the key plug not smooth, can be in the lock-core groove in the small Xu graphite powder or pencil powder to ensure that the key plug and pull smoothly. But do not add any other oil to lubricate, so as to avoid the oil stick to the billiard spring, the lock can not rotate and can not be opened.
4. Regular inspection of the lock and locking plate with the gap between the lock and the lock plate hole is suitable for the high and low, door and frame with the best clearance for 1.5mm-2.5mm. If any changes are found, the position of the hinge or latch plate should be adjusted.