Seeyes security door lock cylinder replacement
Tutorial 1:
1. Prepare tools a cross screwdriver.
2. Remove the screws of the back door handle.
3. Remove the lock cover screws.
4. Remove the upper and lower screws of the lock body (remember that it is up and down).
5. Remove one screw on the anti-lock pin of the lock body (this one cannot be taken out without removing the lock cylinder).
6. In this way, the lock cylinder lock body can be taken out. (Some lock cylinders need keys to take them out).
7. Install the lock body you want to change, hang the lock in heaven and earth, and then do as above screw tightening.
Tutorial 2:
The lock of the seeyes anti-theft door is very easy to change. A plum screwdriver removes the two screws of the handle first, then goes to the middle Bolt to find the most centered screw to fix the lock cylinder, and turns out the screws, just pull out the lock cylinder. The lock body does not need to be removed. Of course, if your lock cylinder has a lock cylinder protective cover, remove the protective cover first. If the nail lock cylinder cannot be removed, the two nails on the door inner handle are also removed, so that the inside and outside handles of the door are removed, and then the lock cylinder can be taken out. I hope I can help you.
Tutorial 3:
Change the security door lock cylinder:
First of all, I know how to remove the security door lock cylinder, then replace it with a new lock cylinder and reinstall it. I need to prepare a cross screwdriver. Generally, there are many types of screwdriver toolboxes in my home, according to the screw specification of the lock, the following is how to change the lock cylinder of the security door:
Extended Data
Features
1. If the key rod is bare without tooth flowers, such a lock is a magnetic lock. In fact, the key head has a casing. If the casing is removed, you can see that there are three to five small dots inlaid on it.
2. The magnetic lock is not reliable, and the cross lock is very convenient to open. Special tools for opening magnetic locks and cross locks can be bought on the market. With this tool, thieves can open most magnetic locks and cross locks in a minute or two.
3. Computer lock compound lock is relatively reliable, computer lock is just a professional name, not really using a computer to unlock the lock. Computer lock there are three to five circular grooves on the key. These grooves are arranged and combined by the manufacturer by computer, so they are called computer lock.
Select indicators
1. The material of the lock body involves a lot of professional knowledge and technology of various manufacturers. Generally, iron, steel, stainless steel and zinc alloy are produced in mainland China. Due to the limitation of technology and cost, the hardness of the lock rod is not enough, it is often easily cut by vise grips and hydraulic clamp.
2. The lock cylinder is usually bought by ordinary people, which only depends on the appearance. If you think it is very big, it is definitely good. However, no matter which kind of domestic lock you buy, the lock cylinder is usually made of copper. The characteristics of copper are relatively soft. Using electric drill and concentrated acid can easily destroy copper cylinder. There are also differences in the types of lock cylinders. The most commonly used lock cylinders are European lock cylinders.
3. In addition, there are American thread lock cylinder and fireproof lock lock cylinder. The latter two are relatively safe. American lock cylinder is applied to high-grade door locks with good quality and high safety. Fireproof lock cylinder is applied to fireproof door lock, it can withstand a high temperature of 975 degrees for 90 minutes and is a special door lock cylinder enforced by the state.
