Sargent Keso (Dimple)
The lock is in ok condition cosmetically, the cylinder and pins work baby butt smooth however the shackle gets stuck. It wont rotate freely in the open position and after spraying WD40 it started to work a bit smoother for a little bit then it got worse. It wont lock and if i force it, it gets stuck half way so I can see the ball bearing cuts on the shackle half way. I have a feeling it may be the ball bearings or dirt in the bearings. After the WD got deep inside, lots of dirty and some metal tiny pieces started to come out.
Does anyone know the internals of this lock? How can I fix this problem?