The lock is broken. Can I change the lock cylinder?

The lock core is the most important part of the lock. There are many anti-theft technologies and anti-opposite-sex plucking marbles in the current lock core. Moreover, the lock core also adopts advanced anti-theft technology, so the safety performance of the lock core is very high. In addition, the marble combination of the lock core also greatly increases the anti-riot and torsion ability of the lock core. At present, there are many kinds of lock cores, including Class A lock core, Class B lock core, Class C lock core and Super Class B lock core. Then Xiaobian will tell you something about the lock core.

How much does it usually cost to change the lock core?

In fact, buying lock cores online is very cheap, and you don't need labor to change them yourself. If you want to ask a professional lock opener to change it for you, the service fee ranges from 50 yuan to 200 yuan, even more expensive than the lock core. Because the price of lock cores varies from 80 yuan to 400 yuan, there are several top-class B-pole lock cores that can go to 500 yuan, but it is generally unnecessary, so the price of replacing the lock core of the security door is also 100 yuan, which is very cost-effective.

(Price source network, for reference only)

How to change the lock core

1. After selecting the lock cylinder, unscrew the two screws at the top and bottom of the hand panel. These two screws are mainly used to fix the panel. As long as you have a Phillips screwdriver ready, it can be done, and it is very simple.

2. After tightening the screws, put the screws away, unscrew the lock core and put the screws on both sides of the sleeve. But be careful not to screw these two screws too tightly when installing, so as not to screw the handle of the security door too tightly to open it. Remove the handle first, and then remove the lock cap.

3. Put the lock cylinder into the sleeve and take it out, and put it together with the screw. Remember the steps when disassembling, and the return is the same. Everything that has been removed should be put away in a unified way, and don't lose it.

4. Unscrew the screw fixing the lock cylinder and remove it to the lock cylinder. If the lock core cannot be pulled out by hand after removing the screw, knock it off with the left or right lock head of the hammer and try again.

5. Install the lock cylinder anti-theft shell according to step 3, and then install the handle. Before installing the handle, now insert the safety bolt and install the handle on it.

6. Install the inner handle and outer handle. Someone better help hold the white hands outside together. The two meet symmetrically and then move on to the next step.

7, adjust the internal and external handles, must be coordinated, screw holes should be aimed at the nut there, or use a flashlight to illuminate before screwing.

8. Insert the screw vertically. If the internal nuts are not aligned when inserting the screws, please shake the screws with your fingers. Generally, friends who have screwed the screws will realize whether the screws are aligned.

9. Fix the panel and tighten the screws. Be careful that the screws are not too tight. When the handle is folded, it cannot rotate flexibly.

10, and finally try the effect. Be sure to try again with the door open to avoid being locked out. If the door is not repaired, you have to start all over again. You can twist the safety by inserting the key and turning it 360 degrees. When everything is normal, you can do it manually.

The above is what Bian Xiao told you about the lock core and how to change it if it is broken. I think everyone will have a deeper understanding of the lock core after reading our sharing content. Nowadays, the safety performance of lock core is getting higher and higher. Now lock core has many functions, such as password lock, electronic lock, fingerprint lock and so on. This kind of lock is very safe. But the lock will be easily broken if it is used for a long time. Generally, the lock core is broken, and a new lock core will be replaced in most cases. If you don't change it, you can refer to our content above.