Roland A-80 key removing tool

wich method to remove key and key pivot from it slot on Roland A80?
is there a tool i can build ?

Google Roland A80 Servive notes. You can down load a manual that includes a key removal tool made from a paper clip. It has a short description on using it, And a lot of technical stuff that I can’t begin to understand! A80’s are mighty beasts!

Thank laurence, i try to tame slowly this mighty beasts, at least the mechanical part : )