IBM CS821 Service Manual page 21

Figure 2. Removing the 3.5-inch drive from the tray
v A 2.5-inch drive slides out of the tray.
a. Turn the tray upside down as shown in Figure 3.
b. Open the retention spring (A).
c. Lift the 2.5-inch drive (B) out of the tray as shown in Figure 4 on page 6.
d. Close the retention spring.
e. Turn the tray right side up.
Figure 3. Turning the 2.5-inch tray upside-down
Removing and replacing parts
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