Juniper Networks M160 manual Reinstalling the Front Impeller Assembly

M160 Internet Router Hardware Guide

If you are installing or replacing components in an operational router, see “Replacing Hardware Components” on page 139.

Perform the procedures described in the following sections to reinstall components into the chassis, first into the front and then into the rear:

Reinstalling the Front Impeller Assembly on page 100

Reinstalling the FPCs on page 101

Reinstalling the Fan Tray on page 102

Reinstalling the Rear Lower Impeller Assembly on page 103

Reinstalling the Rear Upper Impeller Assembly on page 104

Reinstalling the Routing Engines on page 105

Reinstalling the PCGs on page 106

Reinstalling the MCSs on page 107

Reinstalling the SFMs on page 108

Reinstalling the Rear Component Cover on page 109

Reinstalling the Power Supplies on page 109

Reinstalling the Front Impeller Assembly

The front impeller assembly, which includes the craft interface, is located at the top of the chassis front, as shown in Figure 1. To reinstall it, follow this procedure (see Figure 45):

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.Grasp the sides of the impeller assembly and align the rear of the assembly with the guides inside the chassis.

3.Slide the impeller assembly all the way into the chassis.

4.Using a Phillips screwdriver, tighten the captive screw at each corner of the craft interface.

100 Reinstalling Components into the Chassis