The door in most cases is a reliable barrier to the entry of strangers into your home. And the castle gives a special reliability to this protection, tightly locking it in front of the nose of potential attackers. However, the lock is a rather complicated mechanism, subject to regular loads. And if the door goes directly to the street, then the impact of weather conditions. So over time, he will certainly fail, often blocking the entrance to the apartment not only to the “enemies”, but also to the owners. And here it is important to know how to change the larva in the door lock, so as not to rush around in search of a way out of this situation. It is gratifying that this can be done by any armful man who knows which side they take on a screwdriver.
When to change
There may be several signs that your castle is junk:
- The key does not turn. In some cases, it wedges half a turn, after which it is no longer possible to pull out the tool.
- The key rotates, but in vain, without affecting the locking mechanism.
- The key is stuck. As an option, the door unlocks, but it can only be pulled out in an intermediate position.
The latter case can be considered the easiest. This is a “warning shot” followed by trouble. So you have time to think about how to change the larva in the door lock, pick a new one in size and do repair work in your free time, and not in a hurry.
Causes of malfunctions
If you do not take into account the natural wear and tear of the castle, unforeseen chores can arise in such circumstances:
- The structure is broken due to attempts to disassemble it. The goal of such attempts may be an illiterate embodied desire to simply lubricate constipation.
- A blow to the castle, accidental or intentional (in an effort to slam the door shut), at an angle unsuccessful for the larva.
- Trying to open a keyless lock if you forget it at home.
- Hacking or its failed attempt.
- Key loss - if none of your relatives or friends have a duplicate.
In all cases of incapacity for constipation, you have to decide what to change: a lock in an iron door or a larva. In most cases, the latter option is more profitable, since it can be carried out independently, and the minimum cost will be required. Most doors have cylinder locks, on which changing the "secret" does not cause difficulties. And it is especially relevant for “crab” type locks, since changing the larva in the door lock will be much cheaper than the whole system: only a professional can handle it, plus the cost of work and spare parts is very high, and the replacement will take a lot of time.
There are complex locks of high reliability: it is generally not recommended to climb a layman there, although replacement of the larva is possible. It is better to call a master: pay for the work, but do not spend money on the castle as a whole.
When the larva is not replaceable
In some cases, you still have to change the entire castle. These primarily include disk ones: it is often simply impossible to pick up a related cylinder.
In addition, there is a kind of castle, popular because of its reliability, but requiring a complete replacement. This is due to the fact that the code mechanism that provides the secret to opening is built directly into the design of the lock. There are no larvae as such in it. Determining that you are dealing with such a locking device is easy with the key: it has an “old” look, with wings on either side of the rod and a complex pattern on both. Here you can not even try to get by with little blood, but immediately prepare for the replacement of the entire castle.
Instructions on how to change the door lock cylinder
The first step in the action will be the removal of the failed mechanism. It is not necessary to completely disassemble and pull out the entire structure. It is enough to unscrew a screw at the end of the lock (sometimes there are 2 of them), press on the exposed part and pull the cylinder towards you. He will easily come out of the nest.
Second step: a trip to a hardware store with a larva and accurate selection of a cylinder. It must exactly match the old one not only in size, but also in the method of attachment.
The third stage is the installation of a new cylinder. To change the lock cylinder in a metal door, you need to insert it into the socket in the same position as the old one, fix it and fix the removed screws. It remains only to make sure that the castle is working properly again.
The worst case
Worst of all is the one who detects a breakdown, being outside and not having the opportunity to prepare for a replacement. First you need to try to get inside the alternative ways (for example, through the window) and try to open the entrance from the inside. If this is not possible, a larva will have to be drilled. The drill can be borrowed from neighbors or rented at the nearest rental, because before changing the larva in the door lock, it needs to be removed from there. A drill for metal is placed in the drill, it is guided by the location of the flag, and a hole is drilled to the middle of the lock. A screwdriver is inserted into the hole, which turns the flag. When the door is opened, the fixing bolt is screwed and the larva is pushed out of the nest. Then everything is done as described above: a new cylinder is bought and installed in place of the old one.
Car lock
Locks also fail on cars, often even faster than on the front doors. Most often, the owners of domestic transport suffer. Owners of classic models need to know exactly how to change the lock cylinder on the door of the VAZ, so as not to dangle at the service station once again. The procedure is simple and easy to execute.
- The outer handle is dismantled.
- An awl, or a thin Phillips screwdriver, or a strong wire pushes the pin-stopper.
- The castle leash is removed from the inside.
- The spring on the larva is pry off with a screwdriver and removed.
- A key is inserted into the lock and rotated half a turn for fixing. The larva on the key is removed.
Replace in the reverse order.