The door lock practically does not stop working during its life, since it is used several times every day. We practically do not notice this, but when it comes time to replace the old lock, we begin to understand its full significance. In fact, the main defender of our home, the castle must always be in good condition. You can call the wizard to install a new lock, you can replace it yourself. If you like the second option, we will tell you how to do it correctly using the example of a cylinder, disk and lever lock.

Changing the cylinder lock (video)

The cylinder lock has its own peculiarity in the form of a secrecy mechanism hidden in the larva. The pins in it, when the key is turned, go into special recesses.

In general, according to the location, the lock can be the main one and located under the handle or additional and located above it. The lock itself consists of a cylinder (or, in other words, a larva), an armored lining and a handle.

If the handle is out of order, then you only need to change it along with the larva, which is the main part of the structure. You have to choose the type of cylinder depending on the type of break-in from which you want to protect your door.

Depending on the type of break-ins, there are corresponding variations of larvae. Hack types:

Drilling;

Application of a duplicate key;

Knockout;

Hacking with a lockpick.

Photo gallery of opening cylinder locks

Set of master keys for opening locks

You also need to know how to install the larva: end, through the fixation insert, through the fixing screw or internal. Cylinders by type are divided into consignment note, cruciform, disk and others.

cylinder replacement process

First we need to unscrew the locking screw, which is located at the end of the lock, since it is he who is the main holder of the larva.

Insert the key into the lock inside or use a turntable. Holding any of these elements, we extend the cylinder to the inside. If it does not come out, you need to turn the key or turntable by 20 degrees, then the dog will fall into the dimensions and the cylinder will come out. The exact same cylinder is purchased as a replacement.

Be guided by the distance from the dog to the outer edge of the cylinder - it is he who is the most important.

The new cylinder can now be placed in the seat and secured with the set screw.

Lock case replacement process

If the matter is more serious, and it is required to replace the lock case, we proceed as follows:

We open the lock so that the crossbars are fully retracted;

We remove the cylinder from the lock (you have already learned this);

Remove door handles, armor plate and latches. We leave the pads for the keyhole alone;

We unscrew the fixing end screws, which can be either two or four. It all depends on the design of the castle.

Next, it remains to pry the lock by the end plate and carefully remove it. We will put the same lock on an empty place. It is best when the lock is addressed to the manufacturer of the door. To install a new lock, you simply need to follow the above instructions in reverse order.

The larva of the cylinder lock is its main structural part

Changing the lock

The lever lock basically has a whole package of special curly plates called levers. Replacing such a lock has its own distinctive features:

If a domestic lock is installed on your door, then even if there is a problem with the keys alone, you will have to replace the entire system as a whole. It is simply impossible to recode the lock;

Another thing is if the design is imported, then only the secret part is subject to replacement. A new one will need to be encoded based on a new set of keys. The fuss is much less than in the previous case;

You should stock up on patience and time, since replacing the lever lock is the most difficult and time-consuming. It is understandable, because the lever lock has the most complex device.

The level of the problem will allow you to determine how serious and large-scale the replacement of the lock will be - whether it is necessary to change the entire lock or just one element that has failed.

The procedure for replacing the lever lock is as follows:

During the replacement of the lock, the front door must be open. The lock opens and the lock bolts are hidden inside the lock;

The key is pulled out of the keyhole;

Just as in the case of a cylinder lock, we remove the handles, armored plate and latches, leave the pads on the keyhole;

Again, twist the end screws, as in the previous case.

Lever lock - the embodiment of reliability

And we also produce everything else in the same way as when replacing a cylinder lock. We remove the old lock, hang a new one, and then perform all the operations in the reverse order.

A separate word for the owners of CISA locks - since these locks have the function of re-encoding, you do not have to do any of the above, it will only be enough to acquire new keys and encode the lock for them.

Change disc lock

Inside the disc lock, as well as inside the cylinder, there is a secret in the form of a cylinder, only instead of pins there are discs. The cutouts in them in shape and size must completely coincide with the cutouts on the keys, and the key itself has a semicircular section characteristic of these locks.

The inside of the disc lock

In the case of replacing the disc lock, you will have to take into account the following features:

If the disk lock is of domestic production, it will have to be completely replaced for any type of breakdown. Moreover, it is better to replace it with a foreign-made lock, which compares favorably with its higher level of reliability, strength and quality;

With imported locks, in the event of a breakdown, it will be easier - only the larva is subject to replacement, if, of course, it is precisely in it. By inviting a specialist, you will find out the exact cause of the breakdown of the lock.

The more disks in the mechanism and the more complex the grooves are located on the side surfaces of these disks, the more reliable such a lock is. However, this reliability is useless if the lock does not have sufficient strength - it needs protection from mechanical damage.

A good example of a lock is a lock with a cylinder that does not go through the door. Such a lock is resistant to knocking out, and if equipped with an armored cup, it becomes even stronger.

If you have at least a little experience with locks, then replacing the lock on the front metal door will not be such a difficult task. True, if for some reason you are not sure about the quality of the work with your own hands, it is better to call a specialist, since we are talking about the most important protection of your home, and it should always be in good condition.

It's not difficult, but troublesome. Replacing front door locks is not a difficult task, and entrusting this work to specialists will incur unnecessary costs. You need quite a bit of knowledge and almost every person, even some of the fair sex, can change the lock.

People, trying to protect their property, put strong front doors and install locks in them - a reliable barrier to the criminal's path. Mortise locks compact and convenient they are used most often.

Depending on the design of the existing lock, the replacement can be complete or partial, due to a new cartridge. For replacement, only those tools are needed that are found in every home to change the lock or tab for it:

• pencil;
• ruler;
• chisel or chisel;
• level;
• screws and screwdriver;
• drill with a twisted or feather drill.

What you should pay attention to?

Changing the cartridge is easier and cheaper, but not always possible. To do this, before starting work, it is necessary to carefully study the inserts for locks on the market and the locks themselves. The safety of property directly depends on the reliability of the door lock.

1. A very dubious savings from cheap locks: the damage from theft will be much higher.
2. Choose a lock more complex design and the more secret latches moved with a key, the stronger and more reliable the lock.

Replacing the cylindrical cartridge

Cylindrical inserts are found in locks that are opened with flat keys. And if you had just such a key to the front door, then you do not need to change the entire design of the lock. For example, if the key was lost or the lock began to work poorly, it will be enough for you to replace only the insert. The operation is simple and only requires a screwdriver to remove the cartridge:

1. Perform all actions carefully and carefully so as not to damage the surface of the door.
2. Loosen the plate fixing screws and remove the part.
3. Locate and remove the screw securing the insert.
4. After disassembling the lock, insert the spare key into the core, first turn to the right or left along the axis of the tab and remove the cartridge from the lock with a slight movement.
5. For a new tab, it is best to go to the store, capturing the old one, since the new one should have the same dimensions as the old one. It is also important that the mounting screw holes are in the same place.
6. Place the selected new insert into the lock holes in the same way as dismantling.
7. Remember that the liner should enter the holes easily, without resistance. If everything has become so, screw in the fixing screws and fix the plate.
8. Check the operation of the lock. If it works flawlessly, the job can be considered finished.

Dismantling the old castle

In some cases, replacing the insert itself is not an option. Firstly, not all locks have removable inserts. Secondly, the circumstances that served as the basis for the need to replace the lock may be such that it is required to replace the lock completely.

1. Prepare screwdrivers and a size 3 or 2.5 socket wrench.
2. Remove the door handle and unscrew the plate.
3. In older types of doors, on the one hand, the handle is held by a bent nail. Find and pull it out.
4. The fastening of handles in new door locks is somewhat different. There is a small screw that will require an Allen wrench to remove.
5. The difference in disassembly can even be various types castles. The old ones are getting out traditional way, using a screwdriver or by removing the plastic plate on one side of the door.
6. New locks usually have two plates and are fastened on both sides, using the appropriate tool.
7. If the lock does not have a tab, then after opening the door, two screws are visible that fix its position in the door.
8. Loosen the bolts and remove the lock body with a screwdriver.
9. With the lock dismantled, go to the store to buy a new lock of identical size and with the same arrangement of mounting holes.
10. For a person who can dismantle the old lock alone, it is not a problem to install a new one.
11. Non-professionals should be reminded that the new lock is inserted in the same place from which the old one was removed and secured with screws or screws that are included with the lock.
12. If the lock has a removable insert, install it first, and only then install the lock.

Before changing the lock

1. Determine the location of the mortise lock.
2. Attach the inside of the lock to the front door and mark the locations of the mounting holes with a pencil.
3. FROM reverse side doors, strictly symmetrical, make a similar mark.
4. Draw a line of symmetry down the middle of the door edge.
5. Choose a drill with a diameter slightly larger than the thickness of the lock mechanism.
6. Determine the depth of the keyhole.
7. On the drawn line of symmetry, carefully and strictly perpendicular to the plane of the door, drill holes for fasteners.

Replace the lock in a metal door yourself

Replace the lock in the entrance metal door much more difficult than in wood. Unlike wooden doors, changing the lock in which is easy and simple, replacing the lock in a metal door is much more difficult. It is unlikely that you will get by with a standard set of tools; chisels and screwdrivers will not be enough.

Of particular difficulty are doors produced in the dashing nineties and made of steel.

Unified locks did not exist at that time, and every master came up with a way to insert a lock and a method of fastening on his own. Sometimes, to dismantle the old castle, you have to solve the most difficult puzzle, how to get to it. The Stirlitz castle, which was in demand at that time, was a design of the most complex garage lock with a special locking secret. Often, to dismantle old locks in metal doors, you have to disassemble the upholstery on both sides and cut off the fasteners that are welded forever.

Until now, some metal doors have Sonex locks. The locks are homemade and in order to replace the lock, you need to completely change the mounting holes.

Mortise locks are the easiest to replace, the main thing is to find the same one so that you do not have to mill the metal and cut a new thread.

Often old metal doors are installed and made by one-day firms in violation of the installation and installation rules. Replacing the lock in such a door is a complicated and troublesome business: skewed, obliquely cut grooves, torn screws, everything obeyed the principle - cheaper and faster, there was no question of quality, the main thing is that these devices work for two to three years.

Steel door

1. The first, and easiest, is to find a similar lock and replace it. Advantages: does not require door disassembly; possibility old design change the lock to a new, improved one.
2. The second one is more difficult, since it is necessary to replace the existing model of the lock mechanism with a similar, but slightly different one.
3. The third method, the most difficult, requires disassembling the door and reworking the door leaf. They rarely come to him. Often a purchase new door much cheaper than replacing and installing a lock.

Get by without help

You have determined that you can change the lock of the front door yourself, and for this:

1. Determine the design features of the lock: how many turns of the key when closing, what mechanism is used, the presence of a secret, an additional latch, etc.
2. apply the new lock to the door from the outside and mark it with a pencil, tracing around the contour.
3. Repeat steps on the side of the door.
4. If the old hole for the new lock mechanism is small, ream it to the correct size.
5. To attach a new striker plate to the door jamb, measure and drill holes of the correct diameter.
6. So that the lock does not cause you any inconvenience in the future, you need to properly care for it: lubricate it with oil and from time to time lower the mechanism into gasoline.

Difficulties and problems

The action, which is the replacement of the lock of the front door, is hardly serious problem or some difficulty. However, they can occur when a new cartridge or lock cassette does not fit well into an existing hole. Therefore, when choosing a new lock or an insert for it, we strongly recommend taking old parts with you to the store. You can take measurements and show them in the store, but the measurements must be accurate enough. Otherwise, the assembly will be quite difficult, and in some cases you will not be able to completely assemble and replace the lock at all.

It is also possible that the locks are old and have already been discontinued, in which case the search for the desired option will take not a day or two, but can even stretch for a month.

Many people know that locks are the weak point of metal doors. Even if the canvas itself is of high quality and ultra-reliable, a poor quality lock can outweigh everything. positive traits, nullifying the safety of the home. That is why it is so important to correctly select these components. In addition, they need to be able to repair and change if necessary.

Device selection

Many users choose to self replacement castle in safe door from metal. Carrying out such work is accessible and understandable. However, before proceeding to such procedures, it is necessary to determine what type of element is present in the existing canvas. In most situations, there are lever and cylinder types of locks in metal doors.

So, the cylinder lock common today is made up of a special larva, which can be easily removed and removed if necessary. It is possible to understand that a part of this type is present in the existing design due to the presence of a flat key with notches and notches in it. As for lever mechanisms, they are complicated, but they are distinguished by high strength and reliability. Keys made in the form of rods with plates and cuts on them fit them.

Also, modern locks for iron doors are produced as follows:

• disk - with similar mechanisms comes a semicircular key with one-sided recesses;

• cruciform - in this case wrenches similar to a Phillips screwdriver are suitable;

• rack - for such locks, elongated keys with notches are used.

Such options are less common than level or cylinder.

Also, door locks are divided into the following types:

• electromagnetic - in such options, characteristic powerful magnets are provided;

• electromechanical - in the content of these locks there are both electronic and mechanical parts;

• electronic - these types of locks are powered by electricity;

• mechanical - such options are divided into 2 subtypes (mentioned above) - cylinder and level.

Now let's take a closer look at the most popular devices of different types.

- Cylinder

The cylinder lock is recognized as one of the simplest. A similar version of the device is found in many metal doors, which means that it will be quite possible to meet the difficulties of replacing it.

The main advantage of English castles is that in the process of holding repair work they do not need to replace the entire mechanism, which is very convenient and takes little time. Buying a brand new cylinder with a larva will not be the slightest difficulty. It should also be noted that similar parts are produced according to a single standard. This means that your lock in a metal door can be easily repaired - any spare part you need can be easily found.

- Suvaldny

The lever systems that are often found today are recognized as more reliable and efficient, which is why many consumers choose them. However, it must be borne in mind that it will not be so easy to figure out such a device than in cylinder ones. Many manufacturers complement their products detailed instructions with diagrams and drawings. Based on such a guide, it will be much easier to repair or replace the lock.

- With sliding crossbars

The most difficult thing to replace in a metal door is a lock with sliding bolts. Such devices are often used in modern metal door leafs. They provide enough high level security. It is very difficult to break them. Due to the specifics of its mechanism, not only the crossbars on the side, but also the constituent elements in the upper and lower parts. These elements completely block the iron door in the opening.

It is required to work with this lock as carefully as possible so as not to damage the crossbars. In addition, in case of careless work, you can accidentally damage the internal door structure which will reduce its security level.

Reasons for replacement

The need to replace the lock of a metal door may appear in some cases. Let's consider each of them.

• When choosing a new door leaf. In most cases, they themselves are full without a lock. It is bought separately. Of course, certain manufacturers offer comprehensive services to consumers. If you are aiming to save money, then installation and doors, and locking device should be done by hand. Such work should be carried out correctly in order to accurately secure your home.

• In case of lost keys. This reason is considered one of the most common. If you have a spare key in stock, then you can make a duplicate of it, but at the same time there is a risk that someone with unfavorable intentions will find the lost original. In addition, situations are known when people lose all available keys, including spare ones. In such a situation, there is nothing left but to replace the lock.

• Change of damaged mechanism. If you use the locking devices not very carefully or purchase a low-quality mechanism, then the larva in it may soon break, and the crossbars may undergo deformation. Such a lock should not be used, since there will be no sense from it - it will definitely need to be replaced with a new and undamaged one.

• Replacing a not very reliable mechanism. Not in all cases, the owners manage to install a really effective and safe lock that can protect the home from breaking. If for the first time you made a mistake in choosing this device, then this problem can be resolved. In addition, it must be borne in mind that every year different manufacturers release more and more new versions of locks specifically for iron doors.

• In case of a hack. Breaking door locks is an extremely negative situation, which, unfortunately, happens quite often. In such a situation, it is often necessary not only to replace the lock itself with a new one (of better quality), but also to door leaf.

• When transferring housing to new owners. Replacing the lock in these circumstances will serve as a precautionary measure, since it is impossible to be 100% sure of the conscientiousness and honesty of unfamiliar people, even if they previously owned housing.

If at least one of the above reasons touched you, then you do not need to delay replacing the lock in the metal sheet. In addition, it must be borne in mind that carrying out such work can be relevant in the most unexpected situations.

Necessary tools and preparation

If you decide to change the lock in a metal door yourself, then you should know that you need to do this using special tools. This applies to any door leaf, especially metal. You will definitely need tools such as:

• hammer;
• chisel;
• drill.

These tools are indispensable when it comes to changing locks when the keys are lost, and the core of the device must be completely removed.

As regards direct preparatory activities, then this will include the purchase of all the parts required to replace the locks. At the same time, it is very important to ensure that all components are ideally suited to the existing structures. The best solution is to purchase them in the same store (perhaps from the same manufacturer) where the metal doors themselves were bought. In this case, there is no doubt that all the elements are exactly suitable for carrying out all the necessary work.

Dismantling of the previous structure

Before fixing a brand new lock, it is necessary to correctly dismantle the old device. Consider how to do this correctly, using the example of disk, lever and cylinder mechanisms.

Suvald is part of the entire locking mechanism. It consists of plates with special curly cuts. Before dismantling such a device, you need to make sure that the lock is completely removed from the well, all the crossbars are pushed in, and the sash itself is open. After that, it will be necessary to remove all handles and valves. You will need to remove the screws that allow the lock body to attach to the metal base. In the place where it was former device, it is desirable to mount a part of a similar company and dimensions. Otherwise, you may have to spend money on expanding the existing opening for the newly selected device (this can take a lot of extra time).

As for the cylinder device, it is important to consider here that it consists of the following elements: the cylinder itself (that is, the larva), a handle and a special protective lining. If only the handle is damaged, then only it can be replaced without touching the rest of the parts. Even if you have lost the keys to the door, but you can use a duplicate to get into the house, it will be enough to change only the larva and the keys.

In order to remove the body part of the old castle, you will need:

• open the lock by pushing the crossbars all the way;
• remove the screws of the fasteners using a screwdriver or screwdrivers;
• get the mechanism itself;
• remove handles, screws and latch.

If there is an addition on the iron door leaf in the form upholstery material or overlays-decorations, then, of course, it will need to be dismantled beforehand, so as not to damage it. Currently, metal doors are very often decorated with canvases made from high-quality leather substitutes. If there is a similar decor on the canvas, then the door will need to be completely removed so that you can carefully get to the locking mechanism.

It is quite possible to install a disk lock yourself. This device is also made in the form of a cylinder, but disks are placed inside it, and not standard pins, as in other versions. In most situations, it is enough just to change the larva of the mechanism. However, in the event that the mechanism is quite outdated and has ceased to be reliable, it will need to be completely dismantled.

All elements of such a locking mechanism are attached to the door using self-tapping screws. In order to remove the lock to the end, you need to unscrew these screws. In this case, it is important to adhere to the following sequence: first you need to unscrew the fasteners from the handle, then from the larva, and at the end - from the lock case itself. As you can see, the dismantling of the disk element is quite simple and fast. Anyone can do this kind of work.

Replacement process

If you have successfully dismantled the old locking mechanisms, you can proceed to install new ones.

When replacing a lever-type lock, experts recommend using only European systems because they are much easier to repair. If we are talking about such castles Russian production, then in them it will be necessary to reinstall not only the core, but the entire lock as a whole, because it is not possible to recode the lever.

All work will need to be done in several stages.

• First, the door will need to be opened in such a way that the crossbar part can be fully opened. The housing of the locking mechanism must be dismantled.
• Next, you will need to remove the keys, bolts, armor plates and a handle from the core. The decor does not need to be removed.
• You will need to unscrew the screws. Further, the entire component of the device is removed and a new lock is installed.

In a situation where European model the lock will still need to recode the levers, it is recommended to entrust such work to professionals.

It is also possible to replace the cylinder-type lock with your own hands. It is very important to consider here that such a device is distinguished by the presence of a secrecy mechanism, which is represented by a cylindrical larva. So, if the keys are lost, it will be permissible to change only the core. In this case, the lock does not need to be completely replaced.

This model is considered excellent in matters of repair, because even a user who does not have the appropriate experience can easily cope with such work. The whole process can be divided into several main stages.

• First, the old cylinder is removed. Then, using the keys, a special locking mechanism is opened, but in the future it will need to be left in the lock itself.
• You will need to find and unscrew the screws.
• The locking mechanism is then locked with a key.
• Now a screw is screwed in the center of the tongue.
• Next, you need to probe the location of the larva. When she gives in, she will need to be pulled up. In this case, in most cases, only one turn of the key (about 40 degrees) is enough.

If necessary complete replacement such a detail as a larva, then all processes will proceed in the same way, but in the opposite direction.

• First of all, you need to fix the key in the cylinder and turn it so that the flag does not prevent the larva from falling into place.
• Then you need to screw in a special mounting bolt and fix the new larva.
• The previously removed plate is again put in its original place. After that, you need to check the entire mechanism for proper operation.

If it is not possible to remove the larva (this may be due to its damage), then it will first need to be drilled out. Further, this part is usually knocked out. After that, it will be possible to proceed to the direct opening of the iron door using the good old master keys.

Many people change disc locks in metal doors on their own. In these versions, as in the cylinder ones, there is a part in the form of a cylinder, and instead of pins there are disk elements. The cutouts present in them must be identical in shape to the cutouts on the keys. The key itself for such a mechanism should have a characteristic semicircular section.

If you are going to replace a disk-type lock on your own, then you will need to consider the following features.

• If the disc lock is released Russian manufacturer, then in case of any breakdown it will have to be changed completely. Moreover, it should be borne in mind that it is optimal to replace it with a foreign mechanism, which is considered the most wear-resistant and durable.
• In the event of a breakdown of the imported lock, you only need to replace the larva.
• The more disk parts is present in the locking mechanism, and the more complex the grooves are scattered on the sides of these discs, the more reliable the lock will be. But keep in mind that high reliability will be useless if the mechanism itself cannot boast of sufficient strength characteristics. In any case, he will need additional protection from mechanical damage.

As you can see, there is nothing complicated in replacing the locking mechanisms. The main thing is to act in accordance with the instructions and be as accurate as possible. Try to treat all parts as carefully as possible so as not to accidentally damage them during dismantling / installation work.

Checking work

If you have completed all the work on replacing the old lock in a metal door, then you will definitely need to check the correct operation just established mechanisms. You will need to make sure that the latches, handles, and also the crossbar structure are functioning correctly. And you need to do this on both sides of the door leaf. All verification procedures are first carried out with the door open and then closed.

It is important to keep in mind that at this final stage home master may expect the most unexpected surprises. For example, it may be a mismatch of the recesses intended for the tongues on the screwdriver. In this case, they will need to be increased to the required values. Also, many people are faced with the fact that the sash with fully extended crossbars begins to hide, while marks form on the box at the upper and lower boundaries of their location. In this case, the striker (if it is removable) is removed, and the corresponding cuts are made in the box itself. If necessary, the bar is fixed with a slight offset.

After carrying out such improvements, it is necessary to make a final assessment of the functioning of the locking device. You will also need to check the proper operation of the blade handle for possible jamming. Any shortcomings and errors must be corrected after completion of all installation work. Otherwise, the door will not be sufficiently reliable and safe, and the new lock itself may quickly fail.

If you decide to change the locks in iron doors yourself, then you should listen to some advice from experts, to avoid many problems and inconsistencies during the work.

• Cylinder-type locking mechanisms are installed in the same way on all types of door panels. It can be like plastic interior options or cheap Chinese canvases, as well as the Guardian or Torex models.
• Replacing and installing lever type locks is simple and straightforward. The main thing that you will need to comply with is to choose exactly the same device as it was before.
• Door lock must be chosen correctly. The selection of this part is influenced by many different factors, the main of which is the method of direct installation. Experts do not recommend purchasing low-quality Chinese products, because they will not last long.
• Do not rush to immediately change the old lock to a new one. To begin with, it is necessary to determine the scale of the problems and damage to the previous mechanism. It may be enough to just change one of the damaged parts, and not install a new device.
• When working on installing a new lock, it is recommended to use electric tools with adjustable speed. In particular, this applies to angle grinders, because with its use the most delicate and painstaking work will be carried out.
• If you have lost the main key, but have a duplicate in stock, it is still better to change the locks in the iron door. It's not worth the risk, lost thing can be found by unscrupulous people who will have access to your house or apartment.

• Please note that installation mortise mechanisms negatively affects the door structure itself, weakening it. Because of this, the canvas will be less strong and reliable.
• Experts advise purchasing locking mechanisms and doors from some manufacturers. Thus, when installing a brand new lock, you most likely will not have problems and mismatches.
• If you decide to install a cylinder-type lock, then you need to keep in mind that such devices have one serious drawback - they do not have the most reliable jumper. Any loads that fall on such a mechanism inevitably lead to wear of such a part. That is why to cylinder device must be handled with great care and respect.
• When choosing a new lock, experts strongly do not recommend contacting goods with discounts and discounted products. As a rule, such locks are outdated and are characterized by a large number of break-ins. They cannot provide good protection your dwelling. It's better to pay a little more and get quality device who can be trusted.
• Having installed a new lock in an iron door, be sure to make sure that it is fixed securely and correctly. It should not hang out in a dedicated slot.
• At all stages of installation, it is necessary to check the correct operation of the new iron door lock. This will allow you to solve any problems on time, not holding them until the completion of all work.
• At self installation new locking mechanism, you must use only high-quality tools. It is advisable to contact branded fixtures, which will not fail during operation.
• If a new lock requires recoding, then it is better to entrust such work to specialists. It is not recommended to start such processes on your own.
• If there are large decorative details, which may interfere with the installation of a new lock, it is better to remove them during installation. Thus, you will get rid of unnecessary obstacles and do not damage the scenery.

• If there is a reason to replace the old lock with a new one, experienced users advise not to waste time in vain. It is better to start such work as early as possible in order to protect your home from unpleasant consequences as soon as possible.
• Based different options hack release and different types larvae. Hacks are of the following types: drilling, using duplicate keys, knocking out, breaking with a master key.
• Dismantle the old lock and install the new one as carefully as possible. Try not to damage the parts of the devices, otherwise they may be less effective after installation.
• Experienced consumers are advised to take a closer look at high quality products from Cisa. The locks of this manufacturer can boast of very useful feature multiple recoding. You do not have to carry out unnecessary manipulations with this. All that is required of you is to stock up on brand new keys and encode the lock for them.
• Do not forget that the level of thickness of the metal door leaf can become a serious obstacle to the installation of a new lock, for which it is necessary to prepare a wider seat. Sometimes such processes should be abandoned, since this can provoke a weakening of the strength of the entire door in the area of ​​\u200b\u200bthe insertion of the device.
• Buy only branded locks High Quality. Please refer to the product foreign manufacturers(but not Chinese). Similar systems work long and trouble-free, and their repair is quick and easy. Domestic designs are also maintainable, but more capricious and difficult to carry out such work. And in terms of quality, as a rule, they are inferior to the same European models.
• When choosing a suitable lock of proper quality, you should ask the seller for all the necessary documentation and quality certificates that come with the product. If they refuse to show you the documents, then it is also better to refuse to purchase such products, since they are most likely of dubious quality and will not be able to protect your home from intruders.

We use the lock on the door every day, it is subjected to intensive use and more often than other elements of fittings it fails. Trying to protect their apartment, the owners are faced with the need to replace the old lock on the iron door.

One of the biggest reasons why a landlord wants to change the lock is the loss of a key. If there is no duplicate or it is assumed that the keys have been stolen, everyone wants to secure their home and replace the lock in the front door as quickly as possible.

Also, the cause may be a jamming of the lock, a breakdown or the presence of a foreign object inside. Before you run to the store for a new lock, make sure there is no other way to solve your problem.

Most often it turns out that you can get and replace the lock cylinder and the need to buy a new one will disappear by itself.

You can buy and replace the lock cylinder with your own hands or invite a door repairman.

To avoid breakdowns in the future, you need to follow these tips:

• Correctly insert the key into the lock and do not apply force if you cannot insert it into the hole;
• Turn the key only the number of times necessary to open and close;
• Do not insert foreign objects or keys from other locks into the lock;
• Do not insert keys from both sides at the same time;
• Periodically lubricate the lock;
• Do not remove the key until it reaches the stop.

Adhering to these simple rules, you may never have to change the lock on the steel front door in your own apartment.

Replacing locks in a metal door: types of door locks

In order to understand how to change the lock, you must first figure out what type it belongs to.

Most often, cylinder and lever locks are used in metal doors. Rack, disk, crossbar and cruciform are less common.

To determine which lock, you can take a closer look at the keys.

How to determine the type of lock by the shape of the key:

• Cylinder locks have a flat key with notches on it. Such locks have a larva that can be removed for replacement.
• Level locks have more complex system. The keys for such locks have a long shaft with plates and slots at the end.
• Rack locks with flat keys with channel recesses in it.
• Disc locks are opened with short semicircular keys, they have serifs on one side.
• Crossbar locks have keys of a long straight shape with oblique slots on them.
• Cross-shaped locks are named so because the keys to them look like a Phillips screwdriver.

It is also worth mentioning that the locks have differences in the type of their fastening to the door.

Types of locks:

• Padlocks are not attached to the door. With the replacement of such a lock, there will be no problems. They are mainly used to protect the garage, shed or barn.
• Overhead locks do not violate the integrity of the door. They are fastened from the inside with bolts or self-tapping screws.
• Mortise locks are located inside the door. Fasteners are at the end.

Before you run to the store to buy a new lock, try lubricating it first.

Is it possible to change the lock in a metal door yourself

It is more difficult to replace the lock in an iron door yourself than in an ordinary wooden one. Modern market front doors are teeming with low-quality Chinese fakes that are made from thin metal. It is possible to change the lock in such a Chinese door, but sometimes it is easier to buy a better door than to suffer with the dismantling and installation of a new lock.

The lever lock is easier to remove a little due to the fact that the larva does not interfere with removing the lock itself from the door.

Working process:

1. On one of the handles, unscrew the bolt with a hex wrench;
2. Remove the side pads along with the handles;
3. IN end plate Loosen the top and bottom bolts.

Before you start dismantling the old lever lock, make sure that the door is open and the lock is in the open state.

It is advisable to buy a new lock from the door manufacturer. Locks bought on the market or in a store, although they are guaranteed, may not be suitable for your type of front door.

When removing the lock, the key from the lock should not be inside, it should be removed.

The procedure for installing the lock is reversed. First, install a new lock, fasten it with bolts and put on the lining with handles.

Do-it-yourself replacement of the lock core in a metal door

If your door has a cylinder lock, you may not need to change the entire lock. You can limit yourself to replacing the core of the lock.

To pull out the lock cylinder, you need:

1. Take measurements of the door (its thickness) and the dimensions of the lock cylinder - width;
2. Unscrew the bolt that secures the lock from the end of the door;
3. Turn the key to the "Open" position and squeeze the core out;
4. With this part, you can choose hardware store a suitable cylinder, or you can take the dimensions of the larva - diameter, length, width;
5. Insert the new cylinder into the lock and tighten the desired bolt at the end of the door.

If the key is stuck in the door, just use a drill - drill out the insides from the opposite side.

When buying a new core, not only its dimensions are important, but also the color and type. The larva may have two key holes or a connector on one side and a constipation turntable on the other.

It doesn't matter what kind of larva you choose, most importantly, do not try to save money on the purchase. Cheap Chinese parts for entrance doors do not provide a full guarantee of protection against burglary.

Replace the lock in a metal door: how to open a jammed door

In life, there are situations when the owner himself is faced with the need to enter his apartment without a key, that is, to break it open. You can call a specialist, but it will take some time.

Loss or theft of keys, jamming of the lock from the outside - no one is immune from such problems, and in such a situation you need to act quickly.

The lock can be broken with the help of simple items that can be borrowed from neighbors without any problems.

How to open a steel door lock:

1. Hairpin. Very effective way discoveries door lock often featured in films. However, not all types of locks are cracked with a hairpin. The hairpin needs to be broken into two parts or take two pieces of wire. Insert one part inside the lock. The second is to push the inner pins and turn the lock with the first part.
2. If there is a lever lock in the door, you need to pull the door to the maximum and push the pins with the wire inserted inside. This lock is very hard to pick, so don't be surprised if it doesn't work.
3. The cross-shaped lock is opened with a conventional screwdriver. To do this, you need to drill an inlet hole above the keyhole, insert a screwdriver and try to turn the mechanism.

Of course, these methods do not guarantee 100% door opening. It is better to seek help from specialists or try to pick up the key to the lock in a hardware store from memory.

How to remove the lock from a metal door (video)

To protect your apartment, you need to choose a good, high-quality lock. After installing a new lock on a steel door, be sure to check it for operability. First you need to turn the lock with open door, then - when closed. The new mechanism should work clearly and easily.

The lock may need to be replaced for a variety of reasons. Most often, of course, it is its breakdown. Locks are also changed when they no longer satisfy the owner. For example, old system unreliable and easily hacked. If the keys are lost, the installation is also performed new design(although it's easier to order a duplicate). In this article, we will talk about how to change door lock in the apartment on your own, how to change the tongue and the larva.

Types of locks

Castles are:

• hinged;
• mortise;
• overhead.

Mortise locks are often installed in wooden doors. However, today they are also placed in steel structures.

Mortise locks do not provide the proper level of security.

Padlocks and overhead locks are the most common. They are easy to remove and replace.

Locks differ not only in the way of installation, but also in design. Before you change the door lock, you need to choose one that will completely suit the owner.

1. Cylinder lock. A lock of this type can not be completely changed if it satisfies the owner with its quality. Usually, in the event of a breakdown, it is enough to change the core of the structure, the so-called larva. It contains the whole mechanism. Larva - weakness cylindrical lock. If you drill it out, the door will easily give in.
2. Lever locks. Such systems are installed in only one way - tie-in. For a non-professional, inserting such an assembly is problematic. To do this, you have to figure out how to embed the lock in the door without damaging the canvas. If the blade is steel, then the lever lock can be removed and replaced with a similar one. Some companies produce locks of this type, subject to conversion. The lock itself does not have to be changed, only the key to it will change.
3. Disc lock. These systems are divided into automatic and semi-automatic locks. They also contain a larva. Most often, in the event of a breakdown, such locks are changed, although if the system is quite expensive, then you can get by with replacing the core.

How to embed

Before you embed a door lock, you need to select it. The easiest way to work is with a cylindrical one.

1. In order to embed the lock into the door leaf, you first need to set a convenient height of the well.
2. Now you need to attach a new lock to the canvas and make markings. A groove will be drilled at the markup site. Of the tools you will need a drill, chisel and chisel.
3. First, the work of drilling the groove is done with a drill with a drill having a slightly smaller diameter than the width of the groove.
4. Next, the groove is finalized with a chisel and a chisel.
5. Then you need to mark the hole where the well will be drilled.
6. Holes for screws are drilled last.
7. For the "secret" you also need to drill a groove. It is necessary to set its dimensions and make markup.
8. To determine how far the latch goes into the groove, you need to lubricate it with a coloring matter and close the lock.

Before installation, it is necessary to lubricate the moving elements of the lock. However, it is better not to touch the internal mechanism of the larva. If necessary, it is better to process it with graphite. All other parts are treated with grease.

After installation, only decorative and cosmetic work remains.

How to choose

When choosing a door lock, you need to consider where it will be placed. When it comes to the front door high-rise building, then a cylinder lock is also suitable. Of course, they can drill it out, but few of the robbers will make noise and attract attention. Modern iron doors are usually equipped with lever locks.

Something more durable should be put in the cottage or in the country. It is better if the lock is not one, but at least two.

The most durable today are the so-called smartlocks - " smart locks". Such systems run on batteries. Depending on the cost, they can be equipped with password entry buttons, fingerprint or retinal scanners. When the battery runs out completely, they function from a regular key.

The cost of these systems is quite high. They are used in the most extreme cases. According to the principle of operation, they can be compared with intercoms, which today are in almost every entrance.

Video

IN in general terms door lock replacement is shown in the following video: