How to replace the larva in the lock of the front door?

Replacement of the larva in the castle may be required at any time. Most often this is done when the lock is either obsolete or simply needs to be replaced due to a breakdown. It is not necessary to purchase a new one, for all its apparent simplicity, since it is enough to replace only the inside of the lock. Replacing the larva is a very simple procedure when the old castle has become obsolete. The process usually takes no more than 20 minutes and does not require special requirements.

This article will briefly and clearly talk about how to replace the door lock cylinder yourself.

In order to change the inside of the locks, a lot of tools are not required, the master only needs a tape measure, a screwdriver and a larva directly to replace the obsolete. If you are interested in How to replace the larva in the castle yourself, then see the information on youlock.

Main points:

Before replacing the larva, you need to establish the exact thickness of the door and take into account the insulation layer, if any, and the size of the core of the lock. It will also be required to select the larva of the desired length, since it may be too short or long. Too long a larva, by the way, is very bad, because the chance of breaking it after installation and improper closing of the door is extremely high.

To measure the larva, you need to remove the old one, go to the store, buy a new one. Usually the larva is fixed to one bolt located near the edge of the door. After unscrewing, you need to insert the key into the keyhole and move the lock to the “open” position so that the larva moves out.

After taking out the larva, measure its length, diameter and width. It would also be correct to set the manufacturer of the lock. After that, the larva is installed in its original place before being replaced with a new one.

There are only two stages of core replacement, since the procedure does not take much time.

The first step is to remove the old core if it was not taken to the store to show to the seller and replace it with a new one.

The second stage is to insert the key into the new larva, turn the cam to the “closed” position and tighten the bolt securing the larva.

That, in fact, is all, the finished work. Pretty quick and easy, right??