6.Remove the heat shield from the computer (4).
7.For model 4440s/4441s, remove the three Phillips PM2.0×3.0 screws (1) that secure the heat shield to the computer.
8.Rotate the top of the shield upward (2).
9.Lift the heat shield from the computer (3).
Reverse this procedure to install the heat shield.
74 Chapter 4 Removal and replacement procedures