How much is it to change the anti-theft door lock?

The price of changing a lock core for a security door is basically around 50 yuan, which is not very expensive, but I suggest you buy one and install it yourself. If it is installed by an installer, it is better to meet a good one. If you want to meet a "dirty" installation master, the cost of replacing the security door lock may be around 100 yuan to install. Because the lock core of the security door is the heart of the security door, if it is improperly installed, it will give the thief an opportunity, so we should pay attention to the problem of replacing the lock of the security door.

Steps to replace the anti-theft door lock

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 and outer handles of He Long. It's best for someone to help hold the white hands outside together, let them 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 can understand 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.