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2.
3.
4.
CAUTION: To avoid injury, keep tools and your fingers away from the fans as you
slide the fan tray out of the chassis. The fans might still be spinning.
5.
Figure 69: Removing the Fan Tray
Installing the Fan Tray
To install the fan tray, follow this procedure (see Figure 70):
CAUTION: When sliding the fan tray into the chassis, take care not to catch and
pinch any dangling PIC cables with the edges of the tray. Also make sure your
fingers are not near the fans, which start spinning as soon as the fan tray contacts
the midplane.
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.
Loosen the thumbscrew at each end of the fan tray, using a Phillips screwdriver
if necessary.
Grasp the sides of the fan tray and pull firmly to slide it halfway out of the
chassis.
Place one hand under the fan tray to support it and slide the tray completely
out of the chassis after the fans stop spinning.
Replacing Hardware Components
Replacing Cooling System Components
149
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Troubleshooting
