
Chapter 7 Maintaining the Router
Cleaning or Replacing the Chassis Air Filter
7-18
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
OL-11495-01
Cleaning or Replacing the Chassis Air Filter on Cisco 12016
Original Series Routers
Use the following procedure to clean or replace an original series air filter.
Step 1
Loosen the captive screws on the air filter door and pivot open the door
(
Figure 7-10
).
Caution
If the router uses an extended front cover bezel, the air filter door does not have
enough space to open completely. Before you open the air filter door, you must
remove the extended front cover.
Figure 7-10 Opening the Chassis Air Filter Door
ALARM
CSC
0
FA
IL
1
0
1
2
ENABLED
SFC
Q OC-3/STM-POS
6DS3–SMB P
/
H
/
F
12DS3–SMB P
/
H
/
F
RX
TX
11
RX
OC-48/STM-16-SCPOS
OC-12/STM-4 A
T
M
F
AST ETERNET
R
OUTE PR
OCESSOR
26195
Switch fabric
card cage
(behind filter door)
Air filter door
Captive screws
(2 on each side)
Air filter