The reason why the security door is becoming more and more popular is that the security performance of the security door is much better than that of the ordinary door, first of all, the material is more solid, followed by the security door lock is higher, and it is not easy to be pry open. The use rate is frequent, so it is inevitable that there will be problems, if the security door lock is broken, be sure to replace it in time. Then, Xiaobian will tell you how to change the security lock core and teach you how to change the lock.
Screwdriver, vise
Lock cartridge, key
New lock core security door to change the lock first to change the lock core, so first of all, must be to buy a suitable new lock core. As for how to choose the lock core, we can consult the door to buy according to the original lock model.
Unscrew the lower two screws on the handle panel.
Unscrew both sides of the lock sleeve.
Take off the lock sleeve.
Remove the old lock core and install the new lock core.
Adjust the inside and outside handle, the screw hole should be aligned with the nut on the other side, and turn the screw after the light is accurate; Insert the screw and tighten it. That's it.
Change the lock cartridge. After selecting the lock core, unscrew the two screws below the handle panel, which are mainly used to fix the panel, and can be completed as long as a Phillips screwdriver is ready, and it is very simple.
After the screw is turned, put the screw, unscrew the lock core to the screws on both sides of the sleeve, but pay attention to the installation of the two screws do not turn too tight, so as to avoid the security door handle is too tight to open. Take off the handle first, then the lock cap.
Put the lock core into the sleeve and remove it, put it together with the screws, and remember the steps when removing it, and the return is the same. All the disassembled things should be put together and not lost.
Screw the fixed lock core out, remove the lock core, if remove the screw with the hand can not pull out the lock core, it is necessary to use the left or right lock head of the hammer to knock down, and try again. Install the handle after installing the anti-theft shell with the lock core according to Step 3. Before installing the handle, insert the safety bolt and install the upper handle.
Install the inside and outside handle, the outside handle is best held down with help, the two symmetrically meet, and then continue to the next step. Adjust the internal and external handles, be sure to be well coordinated, the screw hole should be aligned with the nut on the other side, or use a flashlight to light and then turn the screw. Insert the screw vertically, insert the screw if the nut inside is not allowed, please shake the screw with your finger, generally rotating the screw friends have realized whether the screw is aligned.
Fix the panel, tighten the screws, pay attention to the screws can not be too tight, the hand handle will be accepted, it can not be rotated flexibly. Finally is to try the effect, be sure to pay attention to open the door and try again, so as not to be locked out, the door is not repaired and have to start all over again.
The above is how to change the security door lock core and lock steps!