DIY Series 38: Euro Profile Cylinder Lock

Euro Profile Cylinder Lock (Disassemble & Replacement)

The euro cylinder lock is one of the most commonly used lock profiles by locksmiths and architectural ironmongers since it is so easy to install, modify with additional security measures, or replace; it is seen in both domestic and commercial properties, offering protection and security for a variety of premises and facilities.

Symptoms: 

Unable to open the lock using the key. Suspect the lock mechanism stuck.

First time trying to understand this Euro Profile Cylinder Lock. Found out there are so many types in different dimension. 

This time I bought the parts from local store due to urgency. It is almost double the price.

I can get it online at half of the price or even lower.

Video:

Test the new Euro Profile Cylinder Lock using key

Photos:

(A) Euro Profile Cylinder Lock

1. Types of Euro Cylinder Lock
2. Typical Disassemble Steps 
3. Example of Cylinder Size
4. Measuring Guide (Length)

(B) Disassemble 

1. Unscrew 2 screws from the handle (internal side)
2. After removing the screws
3. Use spanner to twist to left/right to make the lock broken
   (key point of this sharing, in order to unlock the door)
4. Take out the broken cylinder lock
5. Pictures of the broken cylinder lock
6. Use screwdriver to unlock the tongue of the lock
7. Unrelease the tongue in order to open the door

[ Note: Alternatively, you may opt to perform (B)6 and (B)7 easily using new lock with key, if you have the new spare part. The procedures are same as shown in the video above. I do not have the new lock available at that time, thus I have to use screwdriver to unlatch the tongue of the lock. ]

(C) Replacement Parts

1. Get the correct dimension of the lock body that you need
2. Get the suitable cylinder lock that can fit into the lock body
3. Dismantle the broken lock body from the door
4. Insert the new lock body and tighten it with 2 screws
5. Insert the cylinder lock into the lock body
6. Test the lock with key, then tighten it with the screw provided
7. Insert the metal bar (reuse old parts) from external side into the hole
8. Place one of the handle (reuse old parts) at external side
9. Tighten 2 screws at the handle (external side)
10. Tighten 2 screws at the handle (internal side)

Tools required:

• Screwdriver

Costs involved:

• Lock Body: US$14 (local store), US$7 (online)
• Cylinder Lock: US$7 (local store), US$4 (online)

 

Cost savings:

• Repair charges (depends on service provided)