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Replace Chassis Components
Warning
Statement 1034 Backplane Voltage
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when
servicing
Warning
Statement 1051 Laser Radiation
Invisible laser radiation may be emitted from disconnected fibers or connectors. Do not stare into beams or
view directly with optical instruments.
Figure 78: Cisco 8608 Router - Replace Fans
To replace a fan tray, you must perform the following functions:
1. Press the latch to remove the fan to be replaced.
2. Hold the fan module with the LED and PID label at the top.
3. Align the fan module to the open fan slot in the chassis and press the module all the way into the slot until
the front of the fan module touches the chassis.
Ensure that the thumbscrew on the fan module is aligned with the screw hole in the chassis.
4. If the chassis is powered on, listen for the fans. You should immediately hear them operating. If you do
not hear them, ensure that the fan module is inserted completely in the chassis.
Hardware Installation Guide for Cisco 8600 Series Routers
Replace a Fan Module
113
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