Technical data

FRU Removal and Replacement 5-27
5.5.3 Top Cover Removal and Replacement (Model 400s)
Refer to Figure 5-23 for removing the top cover. Follow these steps to remove the top
cover. Reverse these steps to replace the top cover.
1. Loosen the two screws on the back of the top cover.
2. Lift up the back of the top cover, then pull it back to release the two cover
hooks from their catches on each side at the front of the chassis.
3. Lift the top cover up and off the system unit.
Figure 5-23. Model 400s Top and Left Side Cover Removal