How to install the lock cylinder in the front door?

The larva of the front door lock breaks very often. In addition, intruders in many cases penetrate into the dwelling, cracking this element of the castle structure. Replace the larva is quite possible with their own hands. It is very important to adhere to the instructions so that the result is a reliable and secure system. Today we will analyze in detail how to properly install the larva in the lock of the front door.

Many users are interested in what situations it will be impossible to do without installing a new castle larva. Let's look at all the cases in which this work is required.

• The locks and the larva of the entrance door must be changed if you purchased a more modern and improved canvas. In many cases, the box and the door itself are made without a locking mechanism, so you need to select all the components yourself.

• If you lose the keys, then the larva and the castle as a whole will need to be replaced, and as soon as possible. Even if you have duplicates, the working mechanism will still need to be dismantled and replaced. In the same way, you should act if you have lost all keys in stock, but you need to act even faster in this case - your home will be in danger while the old lock remains in the entrance door.

• If the whole castle system was broken, then it will need to be subjected to mandatory replacement. The use of low-quality materials in the manufacture of the lock, as well as its incorrect operation, usually leads to such problems.

• If the existing lock and the larva are not the most reliable and can not provide your home with a sufficient level of security, then it is better to replace them with more advanced designs.Thus, you will more effectively protect your apartment or private house from intruders.

• When attempting to break in, the larva will also need to be replaced, and as soon as possible. Sometimes they change not only the components of the locking device, but also the handles on the bar, as well as the door frame. If repair of the door lock proves to be too complicated, then it is better to entrust it to specialists.

• When handing over an apartment to new owners, it is also better to change the lock of the castle to provide housing with good protection against possible hacking.

Before you go to the store to buy a suitable castle larva, you need to figure out which varieties of these elements exist in order to choose the best product as a result.

In such locking mechanisms, a certain number of return springs are usually present. Pins under them are also divided into several types:

• code, which affects the key;
• shut-off devices that are equipped with special locking mechanisms.

Based on the location of the lock larvae, these types of mechanisms are distinguished:

• single row and double row;
• three-row;
• four rows;
• conical;
• equipped with rotating pins.

If you rely on the type of mechanism, then the lock cylinder can be divided into the following subspecies:

• sekretki with mechanisms of disk type;
• sekretki with cross-type pins;
• larvae with a special pin mechanism.

Castle larvae may vary in their level of secrecy:

• low - in such models the castle has no more than 10 thousand variants;
• medium - when about 50 thousand options are provided;
• high - when the lock design has over 100 thousand options.

Knowing the varieties of larvae and their mechanisms, it will be necessary to take into account the following important criteria when choosing the right product.

• The size. Choosing a secret, it is very important to pay attention to its dimensional parameters. The new mechanism must correspond to the old one, otherwise it will most likely be impossible to install it. If you decide not to simply replace the larva, but completely change the lock, then you will need to know about the parameter of the thickness of the door leaf. The length of the larva will depend on this value.
• Price, manufacturer. Do not buy too cheap parts. It is advisable to refer to foreign products of high quality. Of course, they will cost more, but they will last longer and will not fail in the first months of regular use.
• Model and modification. It is extremely important to take into account that the gap between the end face and the hole should not differ from the previous device of the lock.
• Key. Normally, standard bots come with a set of keys. Experts recommend acquiring such options, in the set with which the optimal number of unlocking devices is available (so that they are enough for all family members).
• Product color. In most situations, the larvae are bought, which match the color of the castle itself.

Having picked up parts suitable for the lock, it is necessary to prepare for carrying out their installation. To do this, you need to stock up on a number of tools and devices that will simplify the task and allow you to get a good result in the end.

You will need:

• roulette;
• screwdrivers;
• new larva.

As mentioned above, it is quite possible to install a lock cylinder, like the lock itself, in the entrance door with your own hands. Carrying out such work cannot be called too difficult - even a newcomer, who has not previously been confronted with such matters, will cope with this on his own. However, it is better to act in accordance with the guidelines and not to neglect any of the stages. Otherwise, your home will not be protected well enough.

Now let's take a closer look at the main stages of installing a new closed lock, and then a new larva.

• First you need to determine what kind of lock is in your front door. In addition, it will be necessary to find out if there is a bolt in it, for how many turns it is fixed and how it closes from the inside.
• The next step will be markup. Measure from the floor surface 1 meter. Mark it from the side of the entrance door, joining with the jamb.
• Next to the exposed strip, try on the body of the product and set the corresponding mark in the lower part. It is recommended to use gauge with this, arranging its strips in accordance with the distance corresponding to the level of the thickness of the mechanism that you are going to install.
• Now apply a certain number of perpendicular strips running in the central part of the end base. The surface gage at the same time should be tightly applied to the end part when you will be marking. Do not forget about the location of the well.
• Choose a suitable drill bit (to drill a suitable hole). It must be of such a size that the spindle enters into the prepared hole without hindrance.
• Next, proceed to drilling in accordance with the mark on the front side.In the same way, a hole is made for the keyhole. Try to do everything to the maximum carefully, so as not to damage the front door.

Next is the replacement mechanism.

• The space for the body component is made using a drill of the same thickness. So that it does not turn out to be too deep, it is recommended to wrap the drill with tape. So you make a kind of depth mark.
• Having drilled all the necessary holes, clear with your own hands what will be discharged under the nest using a chisel and a hammer.
• Now you can insert the case. Fix it using screws. Install spindle and handles.

The next step is to secure the lining.

• Put a point on the jamb on the area where the door tongue will be located. This should be done with a little ajar canvas.
• Then fix the pads. Transfer their values ​​to the jamb.
• Build a niche with the help of chisels, as well as notches for screws. Then you can fix the pad itself.

And now we will consider how to replace a larva. If your home is protected by a cylinder lock, then you should know that it is almost impossible to invent a master key for it,but you can repair without problems, if necessary. When such systems break down, there is no need to immediately run after new ones. It is enough to replace the larva in them. To do this, you first need to pull it out of the structure:

• first you need to remove the end plate of the system;
• you will need to remove the screw in the center, and with it the locking cylinder (the second part is removed using the key);
• if you lose the key, you won't be able to do without the drill;
• with the dismantled larva, you should go to the point of sale where the seller can select a similar model for you;
• fix the acquired core in the lock of the iron entrance door, using the key;
• fix the core with the central screw;
• over this structure is the installation of the end plate of the castle.

Use the front door lock carefully and carefully. The device will need to lubricate and repeat this procedure periodically.In addition, it is important to take care that the castle and the larva do not “overgrown” with dirt and debris - such structures will not function normally.

After installing the locking mechanism be sure to check the correctness of his work. Make sure that when opening / closing the door the key does not stick and does not get stuck in the well, it can be easily removed from it. If any defects were noticed by you, then you definitely need to get rid of them. Do not postpone the "work on the bugs" for later.

Experts do not recommend buying cheap Chinese larvae for locks. Russian-made products, too, are often unable to boast of perfect performance. The models of European manufacturers are rightfully recognized as the highest quality and reliable ones.

If the larva is not removed from the structure, then you can try to move the key around its axis. It is possible that the locking part could not lock into the “zero” position.

How to replace the lock cylinder in the front door, see the video.