1, the upper cover and the plastic handle are fixed with a big nut, which is unscrewed counterclockwise in the middle of the inner side of the lid.

2. After the lid is separated from the handle, there are six stainless steel screws on the lower side of the handle, and you can see the internal structure when you install them.

3. The upper round cover in the middle of the handle and the lower part are just buckle structures without screws, and they are installed with tools such as a flat screwdriver.

4. pry open the round cover, and the handle part of the upper cover can be completely installed.