Install the Lower Impeller Assembly

The lower impeller assembly is located behind the craft interface at the front the chassis (see Figure 1). To install it, follow this procedure (see Figure 72):

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 sides of the assembly, and align the rear with the slide guides in the chassis.
3. Slide the assembly all the way into the chassis until it contacts the backplane.
4. Using a Phillips screwdriver, tighten the three captive screws at the bottom edge of the assembly to seat it firmly in the chassis.
5. Install the air filter as described in Install the Air Filter.

Figure 72: Install the Lower Impeller Assembly