🗝 Replacement of the lock the front door with your hands: the work step by step guide

Failure of the door lock can be quite a serious problem, because when the owner of the jamming mechanism simply will not get into her apartment. In this case, you will have to drill or punch out the lock, which is fraught with some problems. That is why it is recommended to replace the door lock striker with the slightest shimming or other problems in their work. To learn how to do it with their own hands and will be discussed in today's article.

What is the larva, and what is the principle of its work

The core of a door lock - a mechanism that gives access to the apartment with a key. That it makes it impossible to trip the lock-approved key device and is responsible for the number of secrets.

Inside each cone larvae are several cylinders of varying lengths, which are biased by springs. When the key enters the lock cylinders stand in a Rout in it slots or drilled recesses. The slightest discrepancy between the original key will lead to the inability to open the lock.

Is it always just replacement larvae can do

Not all locks can be replaced by a separate core. In some cases it is necessary to change the mechanism completely. This applies to locks for lever type. Such locks are opened "dvuhflazhkovym" key grooved on both sides. They are fundamentally different from the cylinder (which are now the most common), but because they prefer to stay more.

for lever-type locks, their features

The mechanism of this lock is quite simple and easily susceptible to cracking by using master keys. And it is - despite the constant attempts to increase the manufacturer's privacy. In addition, it is necessary to completely change the case of lost keys. Replacing a single larva is not provided because of its absence.

Another problem with this lock are constantly torn pockets. The key of it is quite bulky and heavier than on cylindrical arrangements, constantly clinging to the lining of the pocket.

Possible ways of replacing their own hands mechanisms

If problems occur it lock needs to be replaced immediately. Do the work in two ways - with a complete dismantling of the castle or with the removal of only the larvae followed by the installation of new elements. Let us consider them separately.

Complete replacement of the castle

This variant is more often used in case of failure or cruciform lever locks. In this case, a long time work will not take. Need only remove the exterior laths (4 unscrew fixing screws from the inside), whereupon the locking bolts 2 to unscrew a screw or an end door and completely pull the lock. Further, in its place a new set, and all actions are performed in the reverse order.

With cylinder locks at full replacement will have to work a little more. Before the dismantling of the mechanism is necessary to remove the larva. Subsequent work perfectly identical to the previous embodiment.

But on removing and replacing the larvae should talk separately and to consider this question in more detail.

Replacement of the lock the door with his own hands: step by step instructions with fotoprimerami

If you need to replace only the larva, which is much cheaper to purchase the castle as a whole, will require a minimum of time. Perform this work can master any home, regardless of whether he has similar experience or any certain skills. It is enough to be able to hold a screwdriver in his hand.

Example	action taken
	For example, take a normal lock. The first step in the well is necessary to insert the key. On the front side of the door you can see the 3 screws of which need to work with only one
	The upper and lower screw designed for fastening latch mechanism entirely, so they can be ignored. Unscrew only need one that is located between them. This can be done easily with a screwdriver
	When the locking screw is loosened, the larva begins to move, but remove it immediately fail. The fact is that inside her castle will hold a special flag. To remove the core, it takes a bit to crank key, catching the right position
	Pulling bot, you can go to the store and buy new. Experts recommend to operate it so as not to be mistaken with its length. However, if the master does not change it for the first time, he will know the size, and therefore replaceable element can be purchased in advance
	The package with the new larvae can be seen that one of the keys is already inserted into the keyhole. To install it you do not need to pull out. Immediately required to put the box so that it does not interfere with installation larvae. Now it is easy to go down to the proper position
	It remains only to "catch" the position where the fixing screw gets into the hole intended for it, and screw fasteners. After this lock can safely use without fear that it will jam at the worst possible (as always) time

What is a combination lock

This embodiment can be called a novelty. It is used for locking the doors of modern metal and has the best possible protection against burglary. There is combined in a single housing 2 immediately locks type - lever and cylindrical, which work together. It is recommended that this option instead of installing two locks of different types separately.

There are three types of such locks differing operating principle.

1. Independent. This type is comparable with separately mounted locks. Castles here can work separately. The door is locked on the upper and lower mechanism individually or on both.
2. Dependent. To close the upper lock, you must first turn the key in the bottom.
3. Semi. By turning the key in one of the mechanisms, and a second locked. But open them already have individually.

Despite the undoubted advantages of combined locks, expressed in reliability of protection against hacking, possibility of installing additional crossbars and compact mechanism, and they have disadvantages, among which:

• the impossibility of replacing a lock separately, and hence larvae;
• the high cost of the mechanism, as compared with the conventional;
• increased the number of nodes that entails, and a higher probability of failure.

Castles high secrecy: smartloki, their features

Smartlok - a modern castle, which has several degrees of protection. Here, a combination of electronic switches, or computer filling may interact with the mechanical component. The simplest smartloki operate as follows. First, the owner enters a certain combination of numbers (he programs it yourself), then you can open the door to a conventional mechanical key. When you set the wrong code, even the native key in the lock not provernotsya. Instead, it can also be used magnetic card.

More complex smartlok can read parameter data of the owner, such as fingerprint or retina.

Which is better: how to choose the most suitable type of lock

Before such a choice often buyers when purchasing entrance doorsThat are sold today with the originally installed in their locks. It should be understood that the manufacturer will not install complicated and expensive lock on the door with a cheap low degree of protection against hacking. It is simply irrational. What is the meaning of constipation with multi-stage protection if the door is easily opened with a knife, like a tin can. So there will have to choose not to castles, as required by the door strength and their financial capabilities.

Possible causes damage larvae door lock

Most often, the core mechanisms fail because of their wear and tear, but this can happen due to the fault of unscrupulous professionals for the manufacture of keys. If duplication is not handled properly, it begins to scratch the cylinder sekretki that eventually leads to the fact that the keys are no longer open the lock. Also leads to wear and insufficient lubrication in the larva. Therefore we recommend the use of aerosol formulations of silicone or WD-40 which are applied directly to the key before using.

Finally

Replacing larvae door lock with your own hands - a simple process that takes a minimum of time and, therefore, the financial costs of labor experts here will be absolutely groundless. If you look, the kind of work can even perform a schoolboy. The main thing - time to understand that the castle began to work properly. This applies not only to the shimming, but also to the emergence of extraneous clicks or failures when turning. After all, the timely replacement of the larvae or the castle completely relieve the owner of the more serious problems, and therefore lead to savings on call emergency workers for opening constipation.

We hope that today's article will help our readers avoid the hassles associated with the failure of the locking mechanism of the door. If you have any questions about today's topic, you can set them in the comments below. The editors HouseChief be sure to answer them as fully as possible and quickly.

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