uPVC reassembling door lock

KevinTheKnight

First things first, I know what I did was stupid but my curiosity got the better of me. I decided to replace the cylinder lock on my uPVC door. I then decided I wanted to know how the lock mechanism works. 

Now, the bottom hook doesn't work and I can't work out how it's meant to be installed. 

Is this a "common" locking mechanism/would anyone have a diagram of how it's meant to fit together/be able to explain this so I can avoid trying to get a locksmith/someone out?

I know the part on the right slots into the side of the door. But I can't remember if the hook catches "down" or "up". Its the bottom one on the door.

10-10-20

Hi!

Tricky one that. Like myself, you're the embodiment of the phrase "if it ain't broke, fix it till it is..." 😂

I'm not sure either and I'm going to suggest that you might have to refer to the upper lock to see how that sliding bolt connects with the level. What I can also suggest is that you look at the bottom receiver for the sliding bolt and see if you can see the tell-tail marks which tell you whether it actuates upwards or downwards. I'd guess that it's in the same direction as the top one. Also, those bolt units are made symmetrically so that the same unit can be installed on a left or right opening door, so if you just copy what you see in the top lock it might all come clear.