1. How to disassemble a burglar-proof door lock cylinder
1、Remove two screws securing the door handle, then remove the door handle from both the inside and outside.
2. Remove the interlocking screws inside, remove the interlocking head, and expose the lock mechanism.
3. At the door frame lock position, remove the lock fixing screws, then pull the lock mechanism out. The entire lock mechanism is now completely disassembled!
II. How to install anti-theft door locks
1. Insert the latch back into its installed position, ensuring that the central hole aligns with the corresponding hole on the latch body. The dimensions of the two sides of the door leaf should also be relatively close, otherwise, remove the latch and re-install it. Ensure the screws are properly tightened.
2、Install the protective head, noting that one of the heads has a wire attachment and should be positioned on the outside. Secure with screws.
3. Determine the locking position and use a screwdriver to rotate the lock mechanism to ensure it functions properly. Then, verify that the lever mechanism is properly engaged by using pliers to rotate the lever mechanism and check the lock mechanism's functionality. once the test is complete, re-install the interior door handle.
Please note: Check if the outdoor door handles have screws in place, and verify that the indoor door handle's locking mechanism is properly engaged. Also, ensure that the door handle's latch is securely connected to the handle.
4、once everything is confirmed, fasten the handle screws and reassemble!
Note: The screws may require some adjustment; beginners should not be concerned. Use a flashlight to locate the screw positions first, then secure them.