Removal and replacement procedures  42  
 
 
Figure 11 Removing the Top Middle Cover 
 
To reinstall the top middle cover: 
1.  Align the top middle cover to the chassis. 
2.  Fasten the four screws (one on each side of the chassis and two on the top middle cover) to 
securing the top middle cover to the chassis. 
Figure 12 Reinstalling the top middle cover