Remove the Upper Impeller Assembly

The upper impeller assembly is located at the top rear of the chassis, above the fan tray (see Figure 2). The assembly weighs approximately 10 lb (4 kg).

To remove the upper impeller assembly, follow this procedure (see Figure 28):

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 captive screws at the bottom corners of the assembly, using a Phillips screwdriver if necessary.
3. Grasp the handle at the top 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 28: Remove the Upper Impeller Assembly