External Locker Catches

[Unclearengineer]

I've got many external lockers on my Lunar Ultima which is great, apart from the one with a locking catch that won't, erm, catch.

I found this out after I got loads of funny looks on a roundabout, where the weight of a sleeping bag forced it open and I had to go and retrieve the sleeping bag from the verge!

I've opened it up with a screwdriver, cant see any obvious way of adjusting it properly and there doesn't seem to be a reason why its not catching.

I'm a bit reticent to change it as its a locking catch and would have to go through the trouble of finding one with a matching key. Any ideas?

 

[Sproket]

I always give the door a little extra push & listen for the 'click' have a look at the part that it fits into there might be some sealant that has squeezed through over time and that is causing the problem ( had it on one of mine ) or has your door seal moved ?