How to change the lock cylinder of a security door? Is it safe to change the lock cylinder of a security door?

How to change the lock cylinder of a security door? To replace the lock cylinder, you must first buy a suitable new lock cylinder. The traditional concept is that the lock cylinder and key are the better, but this is not the case. There are several key points to consider when buying a lock cylinder: the surface of the lock cylinder is smooth, with texture and light; look at the number of marbles, a single row is a Class A lock, which is facing elimination, so buy a double row of marbles; look at the shape of the key, which is the best We sell high and low rows of teeth, double rows of teeth, snake-shaped anti-strike ribs, etc., which are safer. How to replace the lock core of a security door? Of course you can find a locksmith to replace the lock cylinder, but you can also do it yourself. How to change the lock cylinder of a security door can be divided into 8 steps: 1. Unscrew the two screws on the upper and lower sides of the handle panel; 2. Unscrew the screws on both sides of the lock cylinder cover; How to change the lock cylinder of a security door 3. Remove the anti-theft cover of the lock cylinder ; 4. Remove the old lock cylinder; 5. Install the handle after installing the anti-theft shell of the lock cylinder; How to replace the lock cylinder of a security door 6. Install and close the inner and outer handles, it is best for someone to hold the outer handle; 7. Adjust the inner and outer handles and screw holes Aim at the nut over there, and then turn the screw after shining the light; insert the screw and tighten it. How to replace the lock core of a security door? Safety issues are very important! To ensure the safety of the replaced lock cylinder, you must first choose the right new lock cylinder, usually a Class B lock cylinder. If you don’t know how to change it yourself, find a trustworthy professional lock replacement company. In daily life, pay attention to maintaining the lock cylinder and closing the door when entering or exiting. There is no need to worry about safety issues.