Epson 3865X Plus - Manual (Page 221)

4. The subassembly is a large metal casing that encloses the
horizontal drive bays and the power supply, as shown below.
subassem b l y
To remove the subassembly, first lift it up from the front
only. Place your thumbs under the diskette drive and grasp
the top edge of the computer with the rest of your fingers, as
shown below. (If you have a diskette drive installed in the
lower horizontal drive bay, place your thumbs underneath
that drive instead.)
B-30 Installing and Removing Disk
Drives