How to disassemble and assemble the lock core of anti-theft door

The disassembly schematic diagram of the lock core of the security door is as follows:

Tools: hammer, screwdriver, lock core.

1. Before replacement, you need to prepare some tools in advance, such as hammer, screwdriver, lock core, etc. However, we should also pay attention to the accessories of door locks, which are generally only available for newly bought door locks. When unpacking, carefully check whether the accessories are complete.

2. Then start to unlock the door. First, unscrew the handle on the door with a screwdriver, find the upper and lower screw holes on the handle and unscrew it. After unscrewing the screw, the handle can be removed, and the door lock and handle can be removed together.

3. After the door lock is removed, you can find the position of the lock core. At this time, just use a screwdriver to remove the lock cylinder. If it is difficult to take out the lock core, you can tap it gently next to it with a small hammer, and then you can take out the lock core. After removing the old lock cylinder, start to install the new lock cylinder. Pay attention to buy matching lock cores when installing, otherwise it will be uneasy to install different models.

4. Install the lock cylinder to its original position. It's best to have someone help you when operating, and another person needs to hold the back of the door lock with his hand to prevent the door lock from falling. But also can ensure convenient and accurate installation of the lock core, and then tighten the screw.

5. Then replace the door lock. When installing, it is necessary to align the upper and lower holes on the door lock and install it on the door. When installing, it is necessary to fix the screws and install the door lock fittings. After installation, check whether the door lock can be opened flexibly and whether the screws are tightened. If it cannot be used, it needs to be reinstalled.