Yes, push down on the two lugs in the center. If they are really tight, tap them with a composition hammer or a block of wood. Assembly really is not difficult. It just takes a bit of practice. Perhaps your springs have been replaced with some that are overpowered. That could cause premature wear and subsequent timing issues. If they need work, find someone experianced in adjusting BAKER ejectors. They are simple, but need to be worked on by experianced hands. If you tire of your Greener, send it to me!