How to change the cylinder in a door lock without a technician. How to open a door if the lock is broken

Reasons for replacement

This need arises in the following cases:

1. if the key does not turn;
2. the locking mechanism is jammed and now cannot be turned with the key;
3. The mechanism does not open completely.

The front door lock cylinder is damaged for the following reasons:

• the integrity of the locking mechanism is compromised due to a break-in attempt or unsuccessful repair;
• the castle was hit with sufficient force;
• an attempt was made to knock down the doors;
• the key is lost or broken in the locking mechanism;
• a foreign object has fallen into the keyhole and cannot be removed any other way;
• change of owner of the property;
• the keys were considered lost for a long time or were in the wrong hands;
• wear of the secret mechanism.

In most cases, you can replace the lock cylinder of the entrance group yourself, but sometimes this work should be entrusted to experienced craftsmen. It all depends on the type and complexity of the cylinder mechanism.

Is it worth changing the core yourself?

The main criterion when choosing a cylinder security mechanism is the degree of burglary resistance. To ensure the secrecy of the cylinder mechanism, spring-loaded or floating steel pins are used. Conventionally, according to the degree of burglary resistance, they are divided into:

• Simple. They have a low level of privacy, all pins are located in the same plane in one or two rows. Such larvae can be opened with a bump key in a couple of minutes. The door can be opened with a key from any side.
• Combined. The presence of secret elements in the form of holes significantly complicates a hacking attempt. In common parlance, the combined devices are called “spinner keys.” This is due to the fact that the door can only be opened from the outside with a key. From the inside - with a rotary turntable.
• Semi-cylindrical. The keyhole is located only on the outside, so such locks are practically not used in private households.

In order to replace the core yourself, you need to have certain practical skills. It is important to determine the type and size of the core. Having dismantled the old lock core, measure the dimensions of the mechanism: L, B, Ø. A cylinder of suitable size is inserted into the door, turning the cam to the “closed” position. Next, fix it with a special fastening bolt. Despite the apparent simplicity of the operation, it is better to entrust core replacement to specialists. Unprofessional installation leads to jamming of the lock, and the lack of specialized tools and replacement skills significantly increases the labor intensity of the process.

Preparing to repair the castle

Replacing the front door lock cylinder begins with determining its type.

The locking mechanism consists of pins, washers, rotating blocks or movable probes. After turning the key in the core, they line up in a given order, and the structure opens. Their number depends on the complexity of the secret mechanism. Incorrectly aligned core elements prevent the locking bolt from moving, so the lock remains closed. The complexity of the secrecy mechanism depends on the quantity and quality of its parts.

Not all locking mechanisms can be partially replaced. For example, in lever-type structures, the core is integrated into its body, so in case of any malfunction, the entire constipation is replaced.

Designs with a cylinder mechanism have a replaceable core: disk, cross-shaped, pin, complex. Since disc cylinders suitable for an existing lock are not easy to find, locks of this type are completely replaced. To replace the inside of the cross-shaped mechanism, you will need to completely disassemble it. In a pin lock, you can easily replace the core if it is made with an English key. Pin locking mechanisms with a perforated key can be opened by drilling or knocking out the cylinder, which is technically difficult, but doable.

High-quality cylinder locks with a titanium body have more than a million code combinations, keys with floating elements and other additional security systems. In such designs, it is almost impossible to replace the cylinder yourself; it is better to entrust this to professionals or replace the constipation completely.

The standard of the mechanism must be taken into account. The cylinders produced according to the DIN standard for one type of core are interchangeable regardless of the manufacturer. The only things that matter are the thickness of the door leaf and the location of the fastening screw. RIM standard cylinders are produced for rim locks and are used quite rarely.

To replace the larva you will need:

1. hammer;
2. drill;
3. screwdriver;
4. crosshead screwdriver;
5. roulette;
6. center punch;
7. replacement part

Types of locks

You need to start the process of solving the problem yourself by identifying the type of locking device: determine whether the lock is lever or cylindrical. The type of key will help with this. Level locks have one or two bits. For cylindrical ones, it is made in the form of a plate with grooves and teeth.

For information: for lever-type locks, the “secret” is made of plates (levers), which move the bolt back and forth when the key is turned (hence the lever). In a cylinder lock, the bolt moves with a cam located on the cylinder, inside of which a secret mechanism is hidden.

Disassembly and removal of the larva

The method for removing the cylinder from the lock depends on whether the mortise or overlay mechanism needs to be disassembled.

To remove the lock cylinder of a mortise-type entrance door, you need to unscrew the middle screw securing the cylinder in its body. Then you need to insert the key into the hole and turn it so that it is possible to remove the cylinder from the body. If something does not work out, you need to turn the key clockwise with a minimum rotation angle of 10-15° until you can remove the flag - a part that prevents the removal of the larva. Then we press on it and remove it from the nest.

If the lock is overhead, you will first have to remove it from the door by unscrewing the screws that secure its body to the door leaf. Then unscrew the screws securing the core to the body of the mechanism.

It is necessary to drill out the lock cylinder if it cannot be removed any other way. If the procedure is carried out correctly, the structure will remain intact and function after replacing the core. The sequence of work is as follows:

• Using a punch and a hammer, mark the drilling point. It is located above the keyhole, under the line passing through the outer and inner cylinders.
• Using a drill with a diameter of 3 mm, drill the cylinder, destroying the pins.
• If this was not enough, the drill is replaced with a larger one (6.5 mm in diameter) and the cylinder mechanism is completely destroyed. If this is not enough, use a drill with a diameter of 19 mm or a specially tubular drill, but after this the constipation will have to be replaced completely.
• A flathead screwdriver or wire inserted into the core is turned like a key and the lock is opened.

In order not to destroy the structure, the drill must be held level, the drill should first be lubricated with machine oil. Overcoming each pin will be accompanied by a feeling of resistance. It is better to choose a low speed and do not put pressure on the drill, so as not to completely damage the mechanism. When removing the cylinder from the cross-shaped cylinder mechanism after drilling with a screwdriver, you need to lift the stopper and move the lock using the hook.

Tips for choosing a new one

Before replacing the cylinder in the lock, you will need to purchase another one. Before purchasing, you need to measure the thickness of the door, taking into account all the linings, including insulation, so that the core does not sink into it. Then the cylinder is removed.

It is necessary to measure its length, width and diameter. Despite the fact that most manufacturers produce universal cylinders, it is better to purchase a cylinder of the same brand as the old lock. It is necessary to consider whether the locking mechanism is closed on both sides with a key or has a turntable on one side. The color of the core also plays a role so that it does not stand out against the background of the constipation body.

Related article: Is it possible to paint a veneer door?

Another factor influencing the choice of cylinder is the material from which it is made. The most unreliable are silumin cores. It is better to prefer products made of aluminum, steel, zinc or an alloy of aluminum and zinc. You shouldn't skimp on the larva. A high-quality product from a trusted manufacturer will not be cheap, but it will not have to be replaced too quickly.

Who to call if the lock on the door is broken

A stuck constipation must be repaired carefully so as not to aggravate the situation. If this cannot be done on your own, enlist the help of professionals. To pick a lock you can call:

• rescuers;
• private master;
• professionals from a specialized company.

The rescue service is the cheapest, but it does its job too harshly. You can open the lock using primitive tools such as an angle grinder, a hammer or a drill. As a result, you will get into your home, but after that you will have to change both the locking mechanism and the door itself.

Private locksmiths open locks carefully and at an affordable price. But they can collude with attackers, so it’s better not to risk it and immediately turn to professionals for help. They will open the door with minimal damage using special equipment.

Replacing the front door lock

If installing a new larva is impossible (for example, it could not be purchased), you can disassemble it and then reassemble it under your own key. For example, consider a simple lock made of 6 pairs of pins with 6 pairs of springs. In addition to these parts, there is a key lock, a pair of springs for it, a cylinder core, a lid, and a curtain. If a suitable key is inserted into the lock, the pins will form one plane with the core. If the key doesn't fit, the pins will stick out. In this position, they will prevent the core from turning in the lock mechanism.

In order to change the situation, the cylinder will have to be disassembled and the pins rearranged by hand, thereby replacing the lock secret. The disassembled core must be cleaned, and then its parts must be washed in gasoline or another solvent.

It is important to remember that each pin has its own digital code engraved on it. Therefore, if the goal is only to clean and lubricate the mechanism, during disassembly it is worth rewriting the code in order to quickly assemble the cylinder. If you need to choose another combination, you will have to work hard. The pins need to be rearranged in different ways and the resulting combination must be checked with a key. It may happen that the cylinder does not contain pins with the required codes. In this case, you will have to purchase an additional lock for disassembly.

Choosing a new one

To repair the larva, it is advisable to purchase other pins or locking pins. You can get them from specialized lock repair and key making workshops. Another option is to order a core repair kit from the official manufacturer of the lock being repaired.

How to avoid door problems

To prevent this from happening, it is worth taking periodic preventive measures:

• Lubricate the part with special oil several times a year;

• To make the mechanism last longer, you should not slam doors;
• Outdoor external locks should be regularly cleaned of debris, dust and dirt that fall inside from wind and rain.

If you were unable to open the door yourself, there is no need to break it. Call customer service and they will help you quickly.

Installation of the larva

You can change the larva yourself. To do this, it is enough to have the minimum skills of a home handyman.

Before replacing the locking mechanism cylinder, you need to make sure that it matches the lock in size, diameter, and cylinder shape. We insert the key into the hole and fix it in the closed position. Then we install the core in place of the previous one and secure it with a screw. The core should fit neatly into its nest. The fasteners can be located symmetrically or asymmetrically relative to the end of the door, depending on the lock model.

How to get a larva out of a lock

The face or core is the security mechanism of a door lock. He checks the match between the lock and the key inserted into it. It is this part that is the most common target of burglars and the cause of locking device failures.

The question of how to remove the lock cylinder yourself is of interest to many, because over time the locking mechanism wears out, which is why the key begins to jam when turning. And if you don’t change the key in time, the lock may jam and then when you try to open the door, the key will get stuck and break. It is also often necessary to replace the core due to the loss of a key or in order to restrict access to the apartment. This is especially true for rental housing.

Often, replacing the lock cylinder is associated with the desire of homeowners to increase the level of security. If a burglar has to spend more than 5-7 minutes opening the door, then most likely he will abandon the “case.” Therefore, installing a mask with a high degree of secrecy will effectively protect your apartment from burglary.

In all these cases, knowing how to remove the lock from the entrance lock without resorting to the services of a locksmith will help save a considerable amount.

What to do in such a situation?

Causes of problems

There are different ways to open the front door when the lock or the door itself is blocked. This depends on the complexity of the locking mechanism, the reason for the blocking and the nature of the door: knocking down an iron door at the entrance to a home is much more difficult than an ordinary wooden one.

Breakdowns are possible in both expensive and cheap devices. The most common include the following:

• mechanical damage - for example, breakage and jamming of a key, jamming of moving parts in the absence of lubrication, etc. Some of them can be eliminated yourself and still open the front door. Repairing others will require the participation of specialists;
• manufacturing defects - it is necessary to call not just specialists, but representatives of the company that produces locking devices;
• incorrect operating mode - lack of cleaning, lubrication, sudden slamming, lead to partial wear of some elements of the mechanism, which causes the key to jam. As a rule, such problems can be resolved on their own;
• sagging or misalignment of the sash is a problem that can only be solved by specialists. It is unrealistic to reinstall an iron entrance door with your own hands;

Door distortion

Incorrect installation of the block - again, cannot be corrected independently.

It is worth noting that if a really complex lock that requires several degrees of protection is jammed on the front door, you will not be able to open the door yourself even if you want to. In order not to aggravate the situation, it is necessary to call the company’s specialists.

Call the master

Incorrect operation

The key is difficult to insert, does not turn, or is not even inserted all the way. You shouldn’t “insist” and try to turn it: removing the debris is more difficult than trying to get into your home.

First of all, you need to lubricate the jammed lock. For this purpose, universal spray WD-40 is used, which can be found at your local hardware store. You can also use any machine oil or kerosene as a lubricant.

WD-40 spray

Inject it with a syringe into the keyhole. The photo shows the lubrication of the locking device.

lubrication of the locking device

After processing, the key is inserted into the hole and tried to be turned several times without completing the movement.

You can tap the key lightly, but gently; as a rule, after several attempts, when the lubricant spreads, the mechanism opens.

• Debris stuck in the lock - fragments of matches, small rubbish - can be detected with a flashlight or mobile phone. If foreign objects are detected, they are removed with ordinary tweezers. Instead of tweezers, you can use wire or a stiff metal brush.
• A key left on the other side that prevents you from getting into the apartment can be pushed out with a nail file, a pin, or a hairpin.

Locking the locking mechanism

What to do if the lock jams in the door while turning the key? This option is possible when dirt accumulates in the cylinder or the tongue gets stuck. In the latter case, the handle turns, but the tongue remains motionless, as it is jammed. Accordingly, the sash cannot be opened.

A universal solution to this problem is squeezing out the tongue. Use a metal ruler, a knife blade, or a plastic card. The object is inserted into the gap between the door leaf and the frame as deeply as possible in order to hook the far edge of the tongue. If this is successful, use a ruler to push the tongue out of the groove, applying some force. The video shows the front door opening when the lock jams.

Locking mechanism failure

In this case, you can get into the apartment only with special skills. The only available method is drilling out the mechanism. If you can get the necessary tool and if you have the appropriate skills, you need to remove the decorative strip and drill out the cylinder.

In this case, the door suffers little, but the locking mechanism will need to be changed.

In some cases, you can knock out the cylinder with a hammer and then use a metal hook to move the bolts. However, this is only possible with some models. If a lever lock is jammed, for example, it is better not to try to open it yourself.

In what cases can you replace the lock in a lock with your own hands?

You can only remove the old cover yourself from a lock with a cylinder mechanism. Such locking devices are installed both on iron doors and on interior door structures.

If you have a key and the locking mechanism is functioning properly, then changing the lock will not be difficult. You just need to unscrew a few screws, which anyone can do.

First you need to remove the trim and handle, and also unscrew the fastening screw at the end of the open door. Next, the key is inserted into the cylinder and turned clockwise about 30° so that the pin is hidden inside. After this, you can easily remove the old mask. As you can see, the process of replacing the secret is not at all difficult - it will take a maximum of 20-30 minutes.

Installation of a new core is carried out according to the same scheme, only in the reverse order. The secret can be with turnkey holes on both sides or equipped with a turntable on the inside.

Criteria for selecting a new core

In order to correctly purchase a new security mechanism, you need to measure the thickness of the door leaf along with the insulation and door linings. In addition to the length of the cylinder, its diameter and width are taken into account.

It is also taken into account that the key is inserted on both sides or a pinwheel is located on one side. Pay attention to the color of the cylinder so that it does not stand out against the background of the castle.

Silumin cylinders are the least durable, but their cost will be minimal. More durable are steel or an alloy of aluminum and zinc. There is no need to skimp on this element of the lock.

How to remove the mask from a lock without a key?

When closed, the core pin clings to the bolt. Therefore, the problem of how to remove the cylinder lock of an entrance door without a key is solved using more complex methods.

Let's look at four options for how to get the lock out of the lock without a key.

Related article: How to assemble a door handle with a spring

Opening a cylinder lock by knocking it out

The core knockout method is used in cases where it is necessary to open the door as quickly as possible. In this case, the locking mechanism will be irreparably damaged and will have to be replaced with a new one. It is also possible that the door leaf will be damaged in the process. Therefore, it is recommended to use this opening method only in the most extreme situations.

Important! To knock out the secret, you need a chisel and a not too light hammer. The chisel is placed against the core and hit with a hammer. The pin will gradually bend the body wall, and the core will pop out, after which you can move the bolt and open the door.

It is advisable that the width of the tool blade be slightly smaller than the core, otherwise impacts can damage the front door. And then, after opening it, you will not only need to buy a new locking mechanism, but also repair the door.

Breaking out the lock

To break out the secret, you will need a gas adjustable wrench or other device that can be used to hook the mask. The core must be turned sharply to break the fastenings, after which the part can be pulled out without any hindrance.

Breaking out the secret will damage the locking mechanism, but will not damage the front door. To continue using the door structure, you will have to buy a new lock.

Opening by drilling

Drilling is the most gentle method of removing the core without a key. After drilling out the lock, the lock will remain intact and unharmed, but you will have to buy a new lock.

To drill out the secret, you will need an electric drill with variable speed control, as well as drills of various diameters, for example, 0.5, 1.2 and 3 mm. Drilling begins with the smallest drill, the electric drill is set at medium speed. Next, the drill is replaced with equipment of a larger diameter and the operation is repeated until the fastening of the cylinder pins is destroyed. After this, you can easily remove the secret.

Drills that are too thick should not be used so as not to destroy the entire locking mechanism. Then you will have to buy not a new cylinder, but an assembled cylinder mechanism, which costs much more than the core.

Using a master key or bumper key

The bumping method of core removal is the safest method of removing a secret mechanism without a key. However, this requires some skill and time, so opening the lock using the bumping method is not suitable if the door needs to be opened urgently.

The bumping device can be ordered online or purchased in a store. It is a key with a large number of cutouts. You can also use two wires - straight and with a curved tip.

To use a master key or bumper key, you need to understand how the cylinder lock works. There are pins inside the cylinder that must be located at a certain height. Using a bumper key or master keys, you need to tap the pins one by one so that they line up in the desired position.

Important! Not all types of cylinder locks can be opened with a bumper key or master key. High security locking mechanisms cannot be opened in this way.

As you can see, when removing the security lock yourself without a key, there is always a risk of damaging the locking device or the front door leaf. If you need to remove the core without negative consequences for the lock, then it is best to call specialists.

How to remove a larva to find a replacement for it

As a rule, the mechanism does not fail unexpectedly. Having noticed the first signs of a malfunctioning lock, hurry to replace it as soon as possible, otherwise at the most inopportune moment you simply will not be able to get into your home or work. A fairly common reason that a door stops opening is a broken cylinder. This is a part of a lock with a secret mechanism where the key is inserted. It looks like a cylinder connected to a mechanism - a set of pins, which can only be opened by a key specially made for it. The cylinder controls the locking mechanism and is easier to change than the entire lock.

Before purchasing a new part, remove the broken one:

1. Unscrew the mounting bolt at the end of the door that holds the lock mechanism in place.
2. After inserting the key into the hole, turn it 10-15 °.
3. Noticing that the special flag of the mechanism no longer protrudes, pull out the cylinder. This can be done from any side: from the outside, by pulling the key towards you, or from the inside, by pressing on the mechanism. If the larva is equipped with a rotating wing, pull only in its direction.

Attention! If the cylinder cannot be reached, it is likely that the decorative trims for the lock are preventing this from happening. They need to be removed and returned to their place only after replacing the part.

How to select and replace the cylinder in a door lock. Instructions

Once you receive a part that has become unusable, take measurements to buy an identical one. Pay attention to the following parameters of the larva:

These specifications vary as doors vary in thickness. In addition, the indicators depend on the manufacturer. It is better to give preference to the company whose larva has already been in your castle before. Pay attention to the location of the hole for the mounting bolt. It should be at the same distance.

Keep in mind that the larvae differ in the shape of the keys, as well as the number of grooves for them: sometimes there are 2, sometimes there is 1 plus a special wing, thanks to which the door can be opened from the inside without a key. The color of the larva is also important - it must be in harmony with the entire castle. If possible, take the removed part with you to select the same one. Otherwise, rewrite the parameters and select according to measurements.

Related article: How to make sliding doors with your own hands

To install, follow the same steps as when removing the mechanism, but in reverse order:

1. Insert the cylinder into the lock.
2. Secure everything with a bolt at the end of the door. If it does not fit into the desired hole, move the cylinder and at the same time screw in the part.
3. Check the quality of the installation by opening and closing the door with a key on both sides. It should turn freely, and the lock should not creak.

Attention! First check the operation of the mechanism with the door open. If everything went smoothly, you can test the lock by closing the door.

It is also possible to replace the cylinder without a key - for example, if it is broken and a part remains inside the lock. To remove the fragment, you need to turn the locking mechanism. There are 3 ways to do this:

• remove the pins from the cylinder;
• make a hole with a 3 mm drill under the cylinder;
• Having removed the lining from the door, look through the gap where the flag is turned. Drill out the lock body completely and remove the cylinder.

Which option is better to use? This needs to be decided on a case-by-case basis.

Expert advice

If you have difficulties opening the door, you should not immediately change the secret; sometimes it is enough to lubricate the parts of the lock, and it will work normally again. To avoid problems with fixing the cylinder, it must be positioned perpendicular to the end of the door.

If the key in the lock is broken, then the situation is not as bad as it might seem. In this position, the cylinder is unlocked. It is unlikely that you will be able to get the fragment out, but you can turn it with a flat screwdriver, after which you can easily remove the cylinder and replace it.

Following the recommendations of specialists, you can independently dismantle and replace a failed cylinder mechanism. If you are not confident in your abilities or do not have the appropriate tool, then you should call a specialist.

Continue

The cylinder is broken: how to open the door. Methods and tips

If the lock did not receive timely repairs and failed you, leaving you in front of a locked door, there are several ways out of the unpleasant situation.

1. Try to get into the house through the window. Not suitable for apartments located in high-rise buildings.
2. Dismantle the entire structure, including the frame. To do this, you need to remove the linings and frozen pieces of polyurethane foam around the entire perimeter of the opening and saw through the places connected by welding using a grinder. To apply this method, you need to have the appropriate tool at hand.
3. You can also use a grinder, but only for cutting out the lock. This is quick, but in the future it requires replacing the entire entrance structure.
4. Call the rescue service or the company that installed the door. It will take time to call and work with specialists, and sometimes you may need documentation confirming your ownership of the house.

There are ways that allow you to open a broken lock with the least loss:

1. Using a pin, paper clip or wire. Break the improvised master key into 2 parts. Insert one into the lock and try to turn it, while simultaneously moving the pins away with the other part. Does not work with all types of mechanisms.
2. A screwdriver. Effective for cross lock. After unscrewing the top, drill a hole above the keyhole, insert a screwdriver and turn it.
3. Drilling out the lock cylinder. Not suitable for those structures that are equipped with powerful armor protection linings.

Typical constipation problems and solutions

The key is inserted with difficulty and not completely

Defect of the cylinder or lever mechanism. Here you can’t do without a specialist and the appropriate tool. Most likely, you will have to remove the lock (secret).

Well contamination

It needs to be washed. It is better to use a “liquid key” (WD-40), which is injected into the lock. Options include machine or vegetable oil, kerosene. This is done several times, and after each filling of the lock with liquid, a key is inserted into it and attempts are made to push it deeper. At the same time, it turns as far as possible until it stops. As a rule, two or three “series” of such operations are enough to clean the canal. In some cases, a needle or wire helps, which can be used to pull out individual fragments.

Stuck debris

This happens when trying to hack. If an attacker is scared off by someone, he will try to hide traces of his presence. And so he breaks the master key and leaves. If this is the reason the lock is jammed, then a piece of metal can easily be pushed out from the back side. But only if someone is at home and can open the front door from the inside. It is better not to try to fix this problem yourself from the outside.

The key won't come out

As a rule, this indicates that the lock on the door is broken. You should try to remove the key from the well using the recommended lubricants. To prevent this from happening again, you should immediately replace either the entire mechanism or its cylinder.

Difficulty turning the key

It is necessary to determine in what cases this is observed.

• If the mechanism jams in any position of the sash, it should be cleaned; This is the result of dirt.
• When jamming occurs only when the door is closed, there is deformation of the block or leaf. The problem can be solved by sampling material in the area of ​​the castle, but only if the structure is wooden. As a rule, distortions in the metal frame cannot be eliminated; they will have to be replaced.

Latch stuck

This is often an obstacle to opening the door, even if the key is turned all the way. The problem can be solved with the help of any thin and hard object - a knife blade, a metal ruler. Alternatively, for lack of a better option, a plastic card.

The door leaf needs to be pulled a little away from the jamb by inserting a chisel, large screwdriver or ax into the gap - whatever you can fit. This will make it easier to access the tongue that the selected “tool” clings to. After several attempts, you can press it into the lock, and the sash will swing open. But even in this case, you will have to disassemble the locking device and determine the defect. The most likely cause is a weakened or broken spring mechanism.

Lock malfunction

If all of the above methods do not produce results, and the inspection does not reveal any defects in the door and frame itself, then there is only one diagnosis - the locking device is broken.

Replacing the working larva

Sometimes it is necessary to replace the lock core in working condition, for example, if the device mechanism is clogged or the key is lost.

The replacement process consists of the following steps:

• remove the handles and armor plate from the door lock;
• unscrew the fastening screw holding the lock core;
• insert the key into the working part of the lock and, turning it, pull out the cylinder. Gradually the core will come out;
• Now you can insert a new part and perform the reverse sequence of actions.

If there is no key

If the key is lost, the situation is complicated by the fact that the core pin holds the bolt, therefore, without violating the integrity of the lock, it is simply impossible to get the cylinder.

Here are several ways to carry out dismantling:

Knockout

This technique should not be seriously considered as it will damage the lock. Knockout can be used only as a last resort, when you urgently need to get into the room, and there is simply no time to wait for the master.

To knock out a lock, you need to hit its core with a hammer and chisel. The larva will jump out, after which there will be access to the bolt, which should be moved aside and the door opened. But the downside is that you will have to change not only the lock, but also part of the door leaf.

Breaking out

In this case, you will also have to completely change the lock, but the door leaf will remain intact. The method of breaking it out is to hook the cylinder with an adjustable wrench and turn it sharply. As a result, all fasteners are broken off, so the core can be easily removed from the mechanism.

Reaming

This is a more humane method in which you can try to remove the core, but still keep the lock in working order.

Drilling out the core of the lock is not difficult - the key hole is drilled out to the middle, where the fasteners that cling to the bolt are located. After the fastening ceases to hold the core mechanism, the larva can be removed.

Bumper key or master key

Using a master key is the safest option, but without certain skills you will not be able to open the lock.

To open the lock, you will need two wires - a straight one, with which you turn the cylinder, and with a curved end, with which you need to tap the pins. Eventually the pints will line up in a certain combination and the lock will open.

What to do if the door lock is jammed?

It is necessary to determine further actions based on the nature of the breakdown. It can be determined by excluding available versions. If the key is missing, you can open the door with improvised means - a hairpin, a needle.

Step-by-step instruction

A sequence of actions that helps to open the sash in half the cases of jamming:

• clean the keyhole with a stiff brush to prevent the entry of foreign objects - shavings, peeling paint, trim;
• use magnetic attraction to remove metal shavings;
• lubricate the mechanism with oil and try to carefully, slowly turn the key;
• If you can't scroll, try to get it out with pliers.

Attention! Excessive physical impact will significantly complicate the situation - all movements must be careful.

• if the door lock does not open after working with pliers, the mask is pulled out and replaced;
• To avoid damage to the hinges, a thorough inspection should be carried out.

The lock on the door is jammed - what to do if the device is in English:

1. Drill out the mechanism with a screwdriver, pull out the cylinder with a small piece of metal wire, hook up the drive mechanism, and push in the bolts.
2. Knock out the cylinder with a stop by tapping it with a hammer.

To prevent distortion, you will need a wedge. If you can’t find the item you need, you can use a flat-head screwdriver or chisel. A wedge-shaped object is inserted into the hole between the leaf and the door frame. With a slight pressure, you can return the warped canvas to its original position, while at the same time trying to open it.

If the interior door is not locked with a key, and the door does not open when you press the handle, it means the tongue is jammed.

To solve the problem, it is recommended to perform a few simple steps:

1. Insert a flat object (knife, ruler) into the gap between the entrance flap and the frame in the area where the tongue is located.
2. Tilt the knife so that it slides along the steel cut.
3. When the ruler reaches the end, push away from you to push the tab into place.
4. If there is no cut on this side of the sash, then you need to get it out by inserting a ruler diagonally from above.

Attention! If the key breaks off when opening, you can get it out by carefully prying it up with a pin. You must first treat the keyhole with silicone spray.

If you don’t have a hairpin, you need to ask your neighbors for any thin, long object. Then you should replace the lock, because there is no point in repairing it.

Recommendations

A few simple tips to help you cope if your door is jammed:

1. If a wooden door is deformed from moisture, a hairdryer will help correct the situation. In the absence of the latter, you can use a heating device.
2. If the fault is in the iron frame of the door, then the opening must be carried out based on the belonging of the locking mechanism to a certain group.
3. If the door lock is jammed and the security system is cylinder-type, only a master can save you. Among the breakdowns: the key cannot be pulled out, it turns poorly, creaks, the cylinder gets jammed when opening, or the key gets stuck.
4. If the lock on the door is broken and the security system is of the lever type, then in order for the key to be inserted correctly, you can grind off the longitudinal protrusions or press the hole a little.

A careful inspection of the door leaf can help identify the problem. Visually you can notice cracks in the hinges, shrinkage and other damage.