Slide the rear and front frames together.
Slide the rear frame into the sewn guides on the mower bag up to the beginning of the front frame.
Clip the front frame into the plastic channels on the front of the bag.
Slide the bag handle into top of the hard top grass catcher frame. Place the mounting bracket facing up under the front of the handle. Insert the screw and tighten it down with a Philips head screwdriver.
Lift up the back cover of the mower. Place the front assembly into the bracket assembly to the sides of the cover to hold the bag in place.