My main door has a vertical reinforcement bar that locks into the ground and above the door. Unfortunately, it does not share the same key as the main door lock on the left.
I would like to replace both cylinders in order to use the same key for both, and ideally use a more secure key mechanism.
How should I proceed to replace the cylinder on the barlock? I do not see any way to open it or remove it. The brand is Esety but it seems it was acquired by Mul-T-Lock in 2007, and their original website does not exist anymore (I could only find an archive of their old catalogue, which mentions vertical bars, but I don't find mine). I am located in Belgium, if that matters.
Close-up of the barlock cylinder, its brand is Iseo:
(I damaged the paintig a bit more when trying to remove the cover between the two pictures)
I was able to pry the cover of the bar itself at the top and the bottom of the door, but not at the level of the lock. Instead, it is the lock that is coming out of the door (which actually seems like a flaw since you can push it from the outside!). See these side views of the top and the lock:
(note that the door is glossy, hence the reflection)
I can remove the cylinder of the door's main lock without problem, it is 6cm long and symmetrical:
Both keys have the same profile, so I could re-key the main lock, but I would like also to use more secure locks if possible.
