Cisco Nexus 7706 Hardware Installation Manual page 91

Installing or Replacing Modules, Fan Trays, and Power Supplies
The switch can operate for three minutes without the fan tray that you are replacing, but if the switch
Note
air-inlet temperature is less than 86° Fahrenheit (30° C), you have up to 72 hours to replace the fan tray.
Because temperatures can change over time, we recommend that you replace the fan tray within three
minutes.
If you need to remove the fan tray to replace a fabric module, see
on page
Note The fan tray displays the fabric module LEDs so that you can see the status of the two fabric modules
installed behind that fan tray.
Before You Begin
• You must follow ESD protocols, including the following:
• Verify that the chassis is grounded (see
• Verify that you have the following tools and equipment:
Step 1
Remove the fan tray as follows:
a) Use a Phillips torque screwdriver to loosen the four captive screws on the fan tray until they are no longer connected
to the chassis.
b) Grab both fan tray handles with both of your hands.
OL-31330-01
83.
◦ You must wear a grounded ESD wristband (or other personal grounding device) whenever you
handle the electronic modules outside the grounded chassis.
◦ You must carry electronic modules by only their covered edges or handles. Do not touch their
electronic components.
◦ Whenever a module is outside a grounded chassis, place it flat on an antistatic surface or in an
antistatic bag. Never lean the module on anything nor place anything else on top of the module
nor lean anything on the module.
◦ ESD wrist strap (or other personal grounding device)
◦ Number 1 Phillips torque screwdriver
Manual torque screwdrivers are recommended. Be sure to never exceed the recommended torque
setting for the screw that you are working with.
◦ Replacement fan tray
◦ N77-C7706-FAN=
Installing or Replacing a Fabric Module,
Grounding a Switch Chassis, on page
Cisco Nexus 7706 Hardware Installation Guide
Replacing a Fan Tray
29).
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