If you clean your mower after each use, the cleaning is easy, especially because you can easily tip the mower onto its side to access the underside of the deck. First remove the safety key and the battery. Wipe the upper surfaces with a cloth, if needed. Tip the mower on its side and clean the underside of the deck with a bristle brush and/or cloth. Do not use a wire brush. Do not spray the underside of your EGO Power+ mower with water. If grass has built up over time, you may find that a curved plastic scraper, such as those used in the kitchen, is useful to help remove dried, built up grass.