Replace loading tap,spring and nut and tighten (again using forked screwdriver or punch for last couple of turns). Replace action in stock and tighten front two screws. Replace rear screw ---VERY IMPORTANT! You need to pull the trigger while you are tightening this screw to make sure it goes all the way home. If you do not, it feels home but can come loose when you cock the gun and result in a split stock. YOU HAVE BEEN WARNED. Replace the trigger adjusting screw and its spring in the centre of that screw. If this screw is missing then the screws out of a light switch plate can be cut down and the head filed to do the job and a biro spring can be used. The adjuster screw doesnt really do much and the guns seem to work fine without them.