I've taken the lock apart and the problem is that the slider sticks in the open position. In the pic below the slider should return, by spring action, in the direction of the arrow but it jams. It's obviously there is rust in the bottom of the lock. Unfortunately everthing is either swaged or welded so it's not the easiest thing to take fully apart and clean. I'll just fit a new one and keep the old one in case there is a world shortage. LoL.
Cheers
John
[Linked Image]

Last edited by John07; 20/06/21 08:37 AM.