[liftlawssuck]

Very very carefully!! Lol. With the plastic being over 40 years old it breaks easily. A small screw driver to gently pry and another push the strip off. There are many on each side (top and bottom) of the strips. You almost always break some getting them off but there is enough of them to hold it firmly in place. Going back on is easy. Line it up and work it on evenly until almost all the way then one final push to lock it in.

The key getting them off it do not rush it and go easy.