Keyed Padlocks Factory use performance maintenance
       1. When closing the door, it is best to hold the handle, screw the lock tongue into the lock body, close the door and then loosen it, there is no need to hit the door hard, otherwise the lock life will be reduced.
       2. When the main lock tongue or safety lock tongue extends out of the door, please do not violently collide it to prevent damage to the lock tongue and door frame.
       3. Because the sealing strip installed between the door body and the door frame has elastic effect, when the door handle or key is used to open the door and the lock is tight, the door can be pushed or pulled by hand to avoid the elastic force, without strong rotation The handle or key opens and closes the door to prevent the handle or key from breaking.
       4. Always maintain the transmission position of the lock body with lubricant to make the transmission smooth and increase the service cycle. It is recommended to inspect once every six months or a year, and the screws must be tightened during the inspection.
       5. When the lock is used safely, regularly put a small amount of graphite powder or pencil powder into the lock core hole to keep the key plugged in and out smoothly. However, other oils cannot be added as lubrication to avoid the occurrence of grease sticking to the spring sheet, causing the lock head to be unable to rotate and thus cannot be opened.
       6. Check the matching distance between the lock body and the lock plate from time to time, whether the height of the lock tongue and the hole of the lock plate are compatible with each other, and the coordinate distance between the door and the door frame is preferably 1.5mm-2.5mm. If you notice any changes, you should adjust the specific position of the door hinge or lock plate. At the same time, it is necessary to pay attention to the cold shrinkage and thermal expansion caused by weather conditions to ensure a reasonable clearance between the door and the door frame, the lock body and the lock plate, so that the Laminated Steel Padlock with Plastic Cover can be used safely and smoothly.