My machine is missing the grate. It was purchased like this and who knows how long it didn't have one on it. By looking underneath it looks like the 2 brass bushing inserts on the shoe are missing. Can I reinstall some brass bushing inside plate instead of replacing the entire shoe (plate)? then reinstall the new intake grate??? Second question.. If I do not have a grate on machine what, if any concerns should I be aware of without one. I am planning on going out this week and the dealer is telling me the part will take a week to get in. What are your thoughts.