hopefully copy and paste thing will work

door on table
First remove the four screws located on the lock on inside of door to gain access to the mechanism.



four screws to remove



the door turner ( oiled all moving parts)



fits into centre piece, removed circlip



two distinct cut outs



close view centre piece which has a spring



closer view lock oiled with sewing machine oil (not 3 in one because it has a sticky residue)



escaped ball bearing, this fits in those cut outs and rests on spring in centre piece and needs a small cable tie to put back in
put back together refit door and everything works correctly one latch not two, and the door doesn't open once locked which was the problem.
yippee