Manuals and installation instructions

At Javena you will find practical manuals and installation instructions for different types of door hardware and locks. This page helps you correctly install, adjust and use our products, ensuring optimal performance and maximum security.

In addition to installation instructions, you will also find information on how to measure door cylinders, determine the correct size and replace locks and cylinders.

Manuals and installation instructions

On this page you will find links to specific installation manuals and instructions, including:

Each manual is designed step-by-step to make installation as easy as possible. In case of doubt or more complex situations, we are ready to advise you.

Correct installation of door hardware and locks

Correct installation of door hardware and locks is essential for:

  • Optimal burglary protection
  • Smooth operation of locks and cylinders
  • Longer product lifespan
  • Proper closing of doors and windows

Incorrectly installed cylinders or locks can significantly reduce security. Therefore, always follow the instructions carefully and seek advice when in doubt.

Measuring a door cylinder and choosing the correct size

Correctly measuring a door cylinder is crucial to ensure the lock fits and functions properly.

When determining the correct size, consider:

  • The total length of the cylinder
  • The distribution left and right of the fixing screw
  • The thickness of the door
  • Any security hardware present

This allows you to easily determine the correct size (for example 30/30 or 30/35).

If you are unsure about the correct size or want to replace a door cylinder, we always recommend measuring carefully or contacting us for advice.

Important: preferably let a cylinder protrude no more than 3 mm on the outside (beyond the door hardware) to maintain burglary resistance.

Support, installation and service

At Javena we believe in good service, even after purchase.
Therefore we offer support with:

  • Choosing the right cylinder or lock
  • Measuring advice and on-site measuring service
  • Installation questions and technical support
  • On-site installation service
  • Aftercare: maintenance and usage tips

In many cases we can also assist with installation on site, ensuring you are fully supported in complex situations.

Would you like to use this service?
Feel free to contact us for personal advice or a non-binding quote.

Internal links and related information

For more information, you can also visit:

FAQ – Manuals and installation instructions for door hardware and locks

How do I find the correct installation instructions for my lock or cylinder?

On this page you will find specific installation instructions for each product type. Choose the manual that matches your product, such as an auxiliary lock or cylinder, and follow the steps carefully.
In case of doubt, you can always contact us for advice.

Can I install a door cylinder or lock myself?

Yes, in many cases you can install a door cylinder or lock yourself using the correct instructions.
Make sure installation is done precisely so the lock functions properly and safety is maintained.
If in doubt, we recommend seeking assistance.

How do I measure a door cylinder?

You measure a door cylinder by measuring from the centre of the fixing screw to both sides of the cylinder.
This determines the correct size (for example 30/30 or 30/35).

Incorrect sizing may cause the lock to function poorly or protrude too far.

What if I am unsure about the correct cylinder size?

If you are unsure, it is important to measure carefully or contact us.
We will gladly help you determine the correct cylinder size for your door or situation.

Does Javena also offer installation support?

Yes! In addition to manuals, we also offer support for installation questions and technical advice for door hardware and locks.
We also provide on-site installation services so you are fully supported in more complex situations.

Interested?
Contact us for personal advice or a non-binding quote.

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