IBM 5280 User's Setup Manual page 111

104
4. Insert the verification diskette in the diskette drive having
the device address 4000.
a. Insert the verification diskette in the diskette drive slot as
shown. Push the diskette all the way to the back of the slot .
......
..............
......
..............
......
......
......
...... ......
.........
b. Move the diskette locking lever to the horizontal position.
Locking Lever in
Horizontal Position