Acer 4730 - Manual (Page 67)

Chapter 3 57
5. Remove the three screws securing the ODD bracket and remove the ODD bracket from the ODD module.
6. Insert a pin in the eject hole of the ODD to eject the ODD tray.
7. Press down on the locking catch to release the ODD cover and remove.
Step Size Quantity Screw Type
ODD Bracket M2*3 (NL) 3