Hello I have a question about a troy-bilt mower I am about to purchase second hand but I have a question, can you help? It is model number 12A-466M011100706 and the owner does not have the bag that came with it but I wanted to know how the side discharge door works. A friend of mine has a similar mower but his has an attachment that goes onto the side and holds that door open. Does this mower have an attachment or is there some way the side door stays open on its own?