How to maintain the life locks2

How to maintain the lock locks life is our life is closely linked, the security problem that nots allow to ignore, how to properly maintain locks? 1. Locks in the process of normal closing, it is better to hold the hand of the lock tongue precession lock body, close the door and then let go, do not force into the door, otherwise it will reduce the service life. Do not use wet cloth to wipe the lock body and holding hands, because some of the metal locks will rust; Alloy material film of locks will wear off, lost and beautiful effect. 2. Often keep the lock body transmission parts, lubricants to maintain its smooth transmission and service life. The proposal checks once half year or one year, at the same time, check the fastening screw loosening, to ensure that the fastening. 3. Locks in use process, on a regular basis ( Six months or a year) Or in the key when the plug is not smooth, can put into small graphite powder in slot on the lock core or pencil powder to ensure that key inserted smoothly. But don't add any other oil for lubrication, so as to avoid grease sticking billiard spring, lead to cannot turn to open locks. 4. Check the fit clearance of the lock body and lock the gusset plate, the lock tongue cooperate whether fitting for gusset plate hole of the lock, door and door frame of best fit clearance of 1. 5mm - 2. 5mm。 If there have change, should be adjusted on the door hinge or lock the position of the gusset plate.