IBM Power System 8247-42L Manual page 91

c. Remove the rear air baffle guide by pressing the rear air baffle guide latch and lifting the rear air
baffle guide, as shown in Figure 72.
Figure 72. Removing the rear air baffle guide
d. Install the top cover attach bracket. Then, install and tighten the three screws that secure the top
cover attach bracket by using a T-10 Torx driver, as shown in Figure 73 on page 74.
73
System backplane