M160 Internet Router Hardware Guide
Figure 78: Removing the Rear Upper Impeller Assembly
1933
Installing the Rear Upper Impeller Assembly
To installthe rear upper impeller assembly, followthis procedure (see Figure 79
and Figure 80, which show the two types of impel ler that can be installed):
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wris t and
connect the strap toone of the ESD points on the chassis. Make sure the router
is attached to a proper earth ground. For more information about ESD, see
“Preventing ElectrostaticDischarge Damage” on page 226.
2. Slide the assembly all the way into the chassis.
3. Tighten the thumbscrewat each corner of the impeller cover.
Figure 79: Installing the Rear Upper Impeller Assembly
1212
158 Replacing Cooling System Components