Kreisen 3 8 6 X / X E - Manual (Page 65)

Never turn off the computer when the hard disk drive light
is on. This light indicates that the computer is copying
data to or from the hard disk. If you interrupt this process,.
you can lose data.
Never attempt to open the hard disk drive. The disk itself
is enclosed in a sealed container to protect it from dust.
Inserting and Removing Diskettes
To insert a diskette into the drive, hold it with the label facing
up and the read/write slot leading into the drive, as shown
below.
Figure 3-4. Inserting a Diskette (5¼”)
Slide the diskette into the slot until it is all the way in. Then
turn the drive latch down to lock it in a vertical position. This
keeps the diskette in place and enables the read/write heads in
the diskette drive to access the diskette.
3-12 Using Your Computer