How to change the lock cylinder of Feiyun security door is as follows:
1. After selecting the lock cylinder, screw down the two screws above and below handle panel. These two screws are used to fix the panel. It can be completed as long as a cross screwdriver is prepared, and it is very simple.
2. After the screw is screwed, put the screw Well, screw off the lock cylinder and put the screws on both sides of the sleeve, but be careful not to screw the two screws too tightly during installation, in case the door handle is too tight to open. Remove the handle first, then remove lock cap.
3. Put the lock cylinder into the sleeve and remove it. Put it together with the screws. Remember that the steps when removing it are the same. All the disassembled things are put away in a unified manner and do not lose them.
4. Screw out the screw that fixed the lock cylinder, and remove the lock cylinder. If you can't pull out the lock cylinder by hand when removing the screw, you must knock it down with lock head on the left or right side of the hammer and try again.
5. After installing the lock cylinder anti-theft shell according to step 3, insert the Safety Bolt before installing the handle, and then install the upper handle.
6. Install the inside and outside handles of he. It is better for someone to help hold down the outside hands together. Both of them cater symmetrically, and then continue to the next step.
7. Adjust the inner and outer handles to coordinate well. The screw hole should be aligned with the nut on the other side, or rotate the screw after lighting with a flashlight.
8. Insert the screw vertically. If the nut inside misalignment is inserted into the screw, please shake the screw with your fingers. Generally, friends who have rotated the screw can feel whether the screw is aligned.
9. Fix the panel and tighten the screws. Note that the screws should not be too tight. If you accept the handle, you cannot rotate it flexibly.
10. Finally, try the effect. Be sure to open the door and try again, so as not to be locked outside the door. If the door is not fixed, you have to start again. You can rotate 360 degrees by inserting the key to twist the insurance, and everything is normal and the back can be manually operated.
