Reinstall the Upper Impeller Assembly

The upper impeller assembly is located at the top rear of the chassis, above the fan tray (see Figure 2). To reinstall it, follow this procedure (see Figure 44):

1. Attach an ESD strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
2. Grasp the handle at the top of the assembly and slide the assembly all the way into the chassis.
3. Using a Phillips screwdriver, tighten the thumbscrews at the lower corners of the assembly.

Figure 44: Reinstall the Upper Impeller Assembly