1 - 2 horas
I was playing a game of golf with my daughter and the PS3 just quit, she was winning and I couldn't let her win.
I followed all the directions as I dismantled the console piece by piece, it covered the whole kitchen table. It took approximately 5 hours to dismantle and put it back together. I followed the directions backwards so that I would"t miss a wire or anything critical. Because I really didn't want to take it apart again.
Take your time, plus it's a good way to listen to music as you follow the guide in taking it apart.