Traduciendo paso 5
Next, remove the two clear protective plastic stickers (circled in red) from the newly-exposed bottom of the drive.
Remove the nut that was previously enclosed under one of the stickers mentioned above (circled in orange) (I used pliers to remove it, as I was too lazy to grab another socket). It is a bit hard to turn, as it is glued on, but apply enough force and it will come off. Also, unscrew the brass set screw in the middle of the aforementioned nut.