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How to open a damaged lock?

How to open a damaged lock?

How to open a damaged lock?

If a lock is damaged, it will certainly be impossible to open it with the key. But there are times when we think a lock has broken and it turns out to be just dirty or rusty, which prevents them from functioning normally.

Before drawing conclusions, take a good look at the allegedly damaged lock; if necessary, disassemble it. A review of the interior accessories will give us a better idea of ​​what is really going on.

The most common lock failures are related to the following issues:

  1. The key cannot be entered.

There are several reasons for this to happen; however, the most relevant are:

  1. The key has been damaged due to the use (or misuse) received: it may be worn or bent.

  1. We try to insert a new copy: sometimes the copies have burrs or small segments that prevent them from entering the locking cylinder.

  1. Dirt or obstacles accumulate inside the drum: dust, rust or accumulated foreign objects can prevent the key from entering the padlock.

  1. The latch or skates stick together.

Sometimes the door is moved for various reasons; It also often happens that, due to use or other reasons, the lock loses its strength, weakens, causing the latch to not work properly:

  1. The most common reason for moving the door is the loosening of the hinges due to the oscillation of constant use.

  1. High temperatures increase the volume of door materials, whether wood or metal, causing friction and blockage.

  • Solution: Identify the points with the highest friction and cut carefully using a file, sandpaper or rasp, as appropriate.

  1. The bolts holding the lock have become loose from continuous use or from loosening the material in which they are incorporated.

  • Solution: Tighten the bolts securing the lock. If necessary, they should be replaced with thicker ones, which fit better in the wooden or metal openings in the door.

  1. The slider or latch does not work properly or does not match the strike.

In this situation, it is convenient to carry out a review of the various elements of the door: the screws that adjust the hinges and those that hold the lock; weakening causes the latch to lock.

The solution is simply to tighten the screws that have come loose; It is worth lubricating the latch with some graphite powder; If one of them has been insulated, you just need to replace it with another in good condition.

  1. There are some difficulties when trying to turn the key.

Generally, this happens when the internal locking device has accumulated dirt or when lubrication is missing. The solution is clear: clean or lubricate for better performance of our safety device.

If we check that none of these factors cause us to be unable to open the lock, there are two more options: replace it with a new lock or have it repaired by an expert.

Cylindrical locks: some reasons for their malfunction

Cylindrical locks basically consist of a drum, which can be round, round or oval, which can be divided into two sections:

  1. The first section houses a series of springs or springs and screws.

  2. The second section houses the cylinder or rotor, inside which we find the screws; there the keyhole and guards can also be identified.

  3. A cutting line determines the division between the two sections.

The number of bolts and bolts varies depending on the brand, the model of the lock and the level of security it can offer.

In a mortar lock, with European profile, for wooden or metal doors, the cylinder is divided in the middle into two parts; between these two parts is the chamber and inside it is the clutch.

The cylinder is responsible for moving the entire internal lock mechanism; In the case of the dead lock, you need to move the latch and the screw, the two elements that lock and keep the door secure.

Any damage to any of these components will adversely affect the good performance of the lock. These are some of the defects that these elements could present:

  1. Cam wear: this is one of the most mobile parts and corresponds to the greatest effort inside the cylinder; therefore, the damage is greater, especially when the lock is not properly maintained.

  2. Other elements that can suffer from wear and tear are the guards. The key comes in and out constantly; in this process it is easy to assume that the guards will wear out and deform.

  3. The springs are small, thin steel wires that retract and extend each time the key is inserted or removed from the lock. Due to their work inside the cylinder, it is possible to break.

  4. Screws and bolts are metal cylinders subjected to the same stress as springs. Wearing these little pieces is inevitable; more so when the lock is not properly maintained.

Some external reasons that may cause the lock to stop working properly are related to the structure or body of the key. This may show, after prolonged use:

  • Drill wear, which would prevent it from mounting properly in the groove or keyhole of the cylinder.

  • The key teeth are elements that can suffer wear and tear with use.

Keeping our locks clean and lubricated (always with graphite powder, never with oil) will ensure their correct operation and prolong their life.