Remove the old straps. You should not need any tools for removal but, you may need the help of a flat screwdriver or other tool to pry the straps out of the grooves. Then clean any dust or debris from the grooves before installing the new Fagas straps.
We recommend replacing all of the webbing straps even if only a couple have become brittle. This insures an even comfort level throughout. Your new Fagas straps should last between 20-30 years.