How to change door and window lock cylinders for old house renovation

Old house renovation change doors and windows lock core is a very necessary work. First of all, to choose a good lock cylinder that meets the security requirements, it is best to choose electronic locks or fingerprint locks. Secondly, before replacing the lock cylinder, you need to understand the use and model of the original door and window locks. Then, you need to prepare the tools and materials, including pliers, screwdrivers, files, wrenches and other tools and the corresponding model of the lock cylinder.

When changing the lock cylinder of doors and windows, you need to remove the shell of the door and window locks, and then pull out the old lock cylinder with a special tool. Next, install the new lock cylinder, pay attention to the direction of the new lock cylinder and the old lock cylinder to the same direction, the installation should be carried out in accordance with the requirements of the manual, the lock cylinder is fixed, the installation of the lock shell can be.

Lastly, when replacing the lock cylinder of doors and windows, pay attention to safety to avoid accidentally injuring yourself. At the same time, be careful and meticulous in the operation process, do not miss any details to ensure that the lock cylinder is firmly installed.