• Review how to prevent ESD damage. See
"Prevention of Electrostatic Discharge Damage" on page
• Ensure that you have the following parts and tools available to remove a fan tray from an MX10004:
• Electrostatic discharge (ESD) grounding strap
• Replacement fan tray
• A Phillips (+) screwdriver (optional), number 1 or 2, for the captive screws
NOTE: When replacing the fan trays or SFBs at 40° C chassis ambient temperature, ensure that
the fans run at 100% fan speed for at least 10 minutes before replacing the fans or SFBs.
Use the
test chassis fan tray 0 speed
full-speed
and
test chassis fan tray 1 speed
full-speed
commands to set the chassis fans to 100% speed.
After replacing the fans or SFBs, set the fans to normal speed using the
test chassis fan tray 0
speed normal
and
test chassis fan tray 1 speed normal
command.
You install fan trays vertically on the rear of the chassis.
CAUTION: You can replace one fan tray while the router is operating. However, if you
remove both fan trays at the same time, you’ll trigger a thermal alarm and the system
will shut down. See
To remove an MX10004 fan tray:
1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other
end of the strap to one of the ESD points on the chassis (see
).
2. Loosen the four captive screws either by hand or with a Phillips screwdriver.
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