IBM 5155 - Page 266

40 Place the system unit so the rear faces you. Use
a S.S-mm
(7/32-in.) open-ended wrench or a
3-mm allen wrench to loosen the diskette drive
mounting screws on the right side (Do
not
remove the screws from the threaded screw
holes).
Loosen
Mounting
Screws
4-38 Option Installation