IBM Power System 5148-22L Manual page 170

Figure 133. Removing the handle cover from an 8286-41A stand-alone system
4. Remove the rear screw from the side cover by using a Phillips screwdriver as shown in Figure 134.
Figure 134. Removing the screw from the 8286-41A side cover
5. Slide the side cover off of the system in the direction that is shown in Figure 135 on page 153.
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Disk drives or solid-state drives