OWC Mercury Installation Instructions Manual page 14

You are now ready to physically remove the drive from the PowerBook. Start by gently
lifting up on the drive where the modem and inverter boards are at, angling the drive
from the outside. The 2 rubber grommets that the drive rests on will allow the drive to
lift freely on the outside, but not the inside. The inside grommets are captive and fit
inside holes in the frame and you cannot lift from the middle of the computer.
Once the drive is free of the machine, set it on a flat surface and remove the 4 Torx T-6
screws circled in this picture that attach the cards to the frame.
The inverter board will lift straight up off of the frame, set it aside. The modem card
will also lift straight up and off of the frame, but the ribbon cable needs to be gently fed
through the bottom half of the frame, do not cut or pinch the cable while doing so. You
can remove the cable itself to do this, but you do not have to - your choice.
Turn the drive around and remove the two Phillips screws that attach the small left
frame to the drive. Set all parts aside in a safe place.
OWC Mercury Optical Drives Installation Manual Page #14