Installing The M40E Front Impeller Assembly; Replacing The M40E Rear Lower Impeller Assembly; Figure 90: Installing The M40E Front Impeller Assembly - Juniper M40E Hardware Manual

Related
Documentation

Replacing the M40e Rear Lower Impeller Assembly

Copyright © 2010, Juniper Networks, Inc.
All manuals and user guides at all-guides.com
Align the holes in the three semicircular metal tabs on the back of the craft interface
4.
with the corresponding holes in the top of the impeller assembly.
Insert the screws you saved when removing the craft interface into the three holes
5.
and tighten using a Phillips screwdriver (see "Removing the M40e Craft Interface from
the Front Impeller Assembly" on page 173.

Installing the M40e Front Impeller Assembly

To install the front impeller assembly (see Figure 90 on page 175):
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series
Router" on page 232.
Grasp the sides of the impeller assembly and align the rear of the assembly with the
2.
guides inside the chassis.
Slide the impeller assembly all the way into the chassis.
3.
Using a Phillips screwdriver, tighten the captive screw at each corner of the craft
4.
interface.

Figure 90: Installing the M40e Front Impeller Assembly

M40e Field-Replaceable Units (FRUs) on page 157
Tools and Parts Required to Remove Components from an M40e Router on page 309
Maintaining the M40e Fan Tray and Impellers on page 130
M40e Craft Interface Description on page 34
M40e Craft Interface Alarm LEDs and Controls on page 35
The rear lower impeller assembly is located at the lower left of the rear of the chassis,
above the left power supply, as shown in "M40e Chassis Description" on page 8. It weighs
about 4 lb (1.8 kg).
Chapter 16: Replacing M40e Hardware Components
175