Removing The Rear Lower Impeller Assembly; Figure 37: Removing The Rear Upper Impeller Assembly; Figure 38: Removing The Rear Upper Impeller Assembly - Juniper Internet Router M160 Hardware Manual

M160 Internet Router Hardware Guide

Figure 37: Removing the Rear Upper Impeller Assembly

Figure 38: Removing the Rear Upper Impeller Assembly

Removing the Rear Lower Impeller Assembly

The rear lower impeller assembly is located to the left of the circuit
breaker box on the rear of the chassis, as shown in Figure 2. The
assembly weighs approximately 5 lb (2.3 kg).
To remove the rear lower impeller assembly, follow this procedure (see Figure 39):
1.
2.
92
Removing Components from the Chassis
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to one 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 Electrostatic Discharge Damage" on page 226.
Loosen the thumbscrew at each corner of the impeller cover, using a Phillips
screwdriver if necessary.