Remove the Lower Impeller Assembly

The lower impeller assembly is located just above the air intake on the front of the chassis, behind the craft interface (see Figure 1). The assembly weighs approximately 9 lb (4 kg).

To remove the lower impeller assembly, follow this procedure (see Figure 35):

1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
2. Unscrew the three screws at the bottom edge of the assembly, using a Phillips screwdriver if necessary.
3. Grasp the sides of the assembly, and slide it about halfway out of the chassis.
4. Move one of your hands underneath the assembly to support it, and slide it completely out of the chassis.

Figure 35: Remove the Lower Impeller Assembly