Replacing Cooling System Components; Replacing An M120 Air Filter; Removing The M120 Air Filter - Juniper M120 Hardware Manual

CHAPTER 25

Replacing Cooling System Components

Replacing an M120 Air Filter

Removing the M120 Air Filter

Copyright © 2018, Juniper Networks, Inc.
Replacing an M120 Air Filter on page 187
Replacing an M120 Fan Tray on page 190
The router has one air filter that installs horizontally below the front lower fan tray within
the air intake plenum. The air filter is hot-insertable and hot-removable.
To replace an air filter, perform the following procedures:
Removing the M120 Air Filter on page 187
Installing the M120 Air Filter on page 188
The air filter is located in the front of the chassis below the FPC card cage. The air filter
weighs approximately 1 lb (0.5 kg).
To remove the air filter (see
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
1.
ESD points on the chassis.
Unwrap any PIC cables from the spools on the cable management system and remove
2.
the cables from the tray. Arrange the cables so that they do not block the front of the
cable management system and tray, and secure them with temporary fasteners so
that they are not supporting their own weight as they hang from the connector.
CAUTION: Do not let fiber-optic cable hang free from the connector. Do
not allow fastened loops of cable to dangle, which stresses the cable at
the fastening point.
Simultaneously pull the two releases labeled
3.
Lift it up and outward to lock it in place to access the air filter.
Figure 63 on page 188):
on the cable management system.
PULL
187