Juniper Networks M160 manual Removing the Rear Upper Impeller Assembly, Removing a Routing Engine

Installing the Router without a Mechanical Lift

If a second Routing Engine is installed, repeat the procedure to remove it.

Figure 36: Removing a Routing Engine

SFM 0

SFM 1

MCS 0

RE 0

PCG 0

PCG 1

Extractor

clip

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Removing the Rear Upper Impeller Assembly

The rear upper impeller assembly is located at the top of the chassis rear, as shown in Figure 2. The assembly weighs approximately 4 lb (1.8 kg).

To remove the rear upper impeller assembly, follow this procedure (see Figure 37 and Figure 38, which show the two types of impeller that can be installed):

1.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.

2.Loosen the thumbscrew at each corner of the impeller cover, using a Phillips screwdriver if necessary.

3.Grasp the screws at opposite corners of the impeller cover and slide the assembly out of the chassis.

Removing Components from the Chassis 91