Kathy Belsky

I have a weedeater 2510. It works OK as a blower, but I would like to use it as a vacuum. I have the bag and the tubes. But when I look at the directions on page 5/6 of the manual it says to open the inlet cover. There is nothing like that on the bottom. the bottom and motor look like one piece. So how do I attach it. There is nothing that looks like it would be able to attach to the large upper vacuum tube. I'm sure this all came in the box I purchased a number of years ago.