Door lock: installation, device, repair, replacement. Instructions for installing the door lock with your own hands

The need to update the lock system of the front door can be caused by various reasons. The first installation of the mechanism is also very responsible, since it is manufactured in a door that has not been tried in terms of reliability. No less common and installation operations associated with the replacement of the device due to its breakdown. Malfunctions can be caused both by irregularities in the operation of the product, and by the manifestation of the factory defect that the door lock received in the manufacturing process . Installation becomes a necessity even in cases when the system fails due to errors in the previous installation. To protect yourself from such phenomena will help recommendations for the installation of such mechanisms, but first you should familiarize yourself with the design of the lock systems.

Common door lock device

For maximum reliability, it is better to provide the front door with devices from two different systems. That is, if there is an opportunity, it is more advisable to use two mechanisms in one canvas. A combination of the lever and cylinder devices is widespread, which forms a reliable system of constipation. It takes a lot of time to mechanically break such a door, not to mention the fact that it will require special equipment to implement it. In this case, the device and the installation of door locks are interrelated and determine each other - the classical system is a cylindrical mechanism, the design of which includes pins, body, cam and larva.

By a similar principle , the lock is also arranged, but it provides for a whole system of locking elements, which complicates the design of the mechanism and its installation. And now it is necessary to separately consider the lock and cylinder locks in terms of the principle of operation.

Cylinder models

The operation of the system is based on the pivoting mechanism, as a result of which the bolt is activated and the door opens. The secret element in this case is enclosed in a cylinder and is a set of so-called pins that determine the key's belonging to its larva on the basis of physical parameters. Depending on the number of cylindrical components and the accuracy of their performance, we can talk about the secrecy of this or that level. According to experts, the number of combinations for models of this type can reach millions. Nevertheless, in a solitary quality, it is not recommended to use a cylinder door lock. Installation of models of this type is usually performed in combination with the same lever mechanism or armored plates, which increases the safety of the protective system.

Suovalnye models

The basis of the lever mechanism is a complex of plates, which act as code elements, like the cylinder components in the previous version. These are spring-loaded levers, which are usually made of steel. Such locks refer to devices, the massiveness of which goes into a plus. The more the Suvald, the longer the attacker will mess with the autopsy. But, again, the door lock, the installation of which was carried out according to all the rules and recommendations of the manufacturer, will not leave the ordinary robber no chance of success. Especially if this lock is added with a cylinder mechanism with additional overlays.

Installing the cylinder lock

Thanks to a simplified device of mechanics, such a lock causes less trouble during the installation operations. These models have a few advantages, but they also allow you to save on consumables. So, when changing the lock, it is enough to update only the larva. In general, the instruction for installing a cylinder-type door lock looks like this:

• First of all, the distance at which the slots for the working elements of the lock will be made is measured.
• Using a drill bit a hole of the same diameter is made as the key cylinder.
• From the outside, a cylinder is inserted into the hole, after which it should be pressed by the mounting plate. Then the connecting rod is pushed in so that there remains a small indentation behind the plate.
• On the rod is put on the plate, rings and other fittings, which act as locks in a specific set.
• On the lock case there must be a button - it should be pressed to release the latch and install the mechanism on the plate.

Installing the lock lock

To begin with, you should outline the places where the screws for fixing the lock will be located. After that, using the electric drill, technological holes are made for the central installation of the lock, that is, its boreholes. Then the device is mounted on the screws, after which it is necessary to check the correctness of its position. It happens that the doors have additional layers of finish. In order not to damage them, you should initially use thin drills. True, with such a snap-in installation of door locks with their own hands can bring certain inconveniences - for example, a well will have to be formed into several approaches. But in the formation of the ends you can arm yourself with a drill of the optimal size - in this case, niches for bolts are created. In the final stage, the lock is fastened with screws and the lining is installed.

Possible damage and repairs

Usually, the door locks fail for three reasons: due to malfunctions in the assembly of the mechanism in relation to the web, due to the wear of internal components and as a result of mechanical breakages of the housing. To correct the situation in the first case it is possible by means of re-installation. The larva is removed, the fixing straps are loosened, the position of the device is corrected, the installation is reinstalled.

In the case of internal malfunctions, it is also necessary to dismantle, but the lock itself is disassembled with a hexagon. It is necessary to unscrew the screw for the outer handle, fixing the bolt and the secret. If all the elements work properly, then you must reinstall. But it is important to understand that repairing and installing door locks does not guarantee that the problem will not happen again. If the mechanism jams and it was able to recover, then it is more likely to happen again. Therefore, it is recommended to perform a full replacement.

Making a replacement yourself

Again, it is easiest to work with cylinder mechanisms. For replacement, it is necessary to remove the armored plate from the outside, and open the lock with a key. Then the metal plate is unscrewed from the end part. To release the bolts, the locking element must again be retracted. In the center of the device, the screw is unscrewed and the larva is removed. Then, replacement and installation of door locks can already be performed from the new kit. In the reverse order, a new secret is inserted, after which fastening and protective additions are twisted.

Conclusion

Special difficulties in the maintenance of locks for conventional metal doors does not cause. Traditional mechanics are easy to install and reliably reliable. But there are also disadvantages that a classic door lock has. Installation requires intervention in the basis of the canvas, its structure is deformed. True, the latest modifications of cylinder and coupler devices differ in their compact size and neat entry into the door niche. But, on the other hand, do not forget about the dependence of the level of reliability of the same lever mechanisms on the dimensions.