Internet Router Hardware Guide

M160 Internet Router Hardware Guide
Figure 37: Removing the Rear Upper Impeller Assembly
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Figure 38: Removing the Rear Upper Impeller Assembly
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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. T he
assembly weighs approximately 5 lb (2.3 kg).
To remove the rear lowe r impeller assembly, follow this procedure (see Figure 39):
1. A tt ach 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 t he router
is attached to a proper earth ground. For more information about ESD, see
“Preventing Electrostatic Discharge Damage” on page 226.
2. Loosen the thumbscrew at each corner of the impeller cover, using a Phillips
screwdriver if necessary.
92 Rem oving Components from the Chassis