the case back has a lot of failed opening attempts ...
In order to not add more damage to the case back, I glue a nut to it to open it easily
the day disc jumper spring is dislodged
the barrel bridge is worn, and the barrel touches the bridge.Somebody has tried to solve the problem by punching the bridge, but that repair has worn out as well.
broaching the barrel bridge to fit a new bush
new bush put in place
bush soldered into place
bush broached
the barrel fits nicely now