LAWN-BOY~ PR PREP ASSEMBLING GRASS BAG TO FRAME 1 Slide the top loop of the frame into the bag. Arrange the cloth so the frame is next to the seam around the top of the bag and the plastic bottom is facing away from the lifting handle. Pull the bag therefrom so the connectors meet the front frame bars. 2 Spread the connectors and snap over the front frame bars. Refer to instructions in your Operators Manual for attaching rear grass catcher assembly to your mower.