Juniper Networks EX4200 - Manual (Page 200)

Related Topics ■ Installing a Power Supply in an EX3200 or EX4200 Switch on page 130
■ Installing and Removing EX3200 and EX4200 Switch Hardware Components on
page 129
■ Power Supply in EX3200 and EX4200 Switches on page 26
■ Field-Replaceable Units in EX3200 and EX4200 Switches on page 16
■ AC Power Cord Specifications for EX3200 and EX4200 Switches on page 98
■ Rear Panel of an EX3200 Switch on page 9
■ Rear Panel of an EX4200 Switch on page 11
Removing a Fan Tray from an EX3200 or EX4200 Switch
EX3200 and EX4200 switches have a single field-replaceable unit (FRU) fan tray on
the rear panel. The fan tray is a hot-removable and hot-insertable FRU: You can
remove and replace it without powering off the switch or disrupting switch functions.
Before you begin removing a fan tray from an EX3200 or EX4200 switch, ensure
that you have taken the necessary precautions to prevent ESD damage (see
“Prevention of Electrostatic Discharge Damage on EX Series Switches” on page 236).
Ensure that you have the following parts and tools available to remove a fan tray
from an EX3200 or EX4200 switch chassis:
■ Electrostatic discharge (ESD) grounding strap
■ Phillips (+) screwdriver, number 2
■ An antistatic bag or an antistatic mat
To remove a fan tray from an EX3200 or EX4200 switch (see Figure 68 on page 175
and Figure 69 on page 175):
1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
2. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and
connect the strap to the ESD point on the chassis.
3. Loosen the screw or screws securing the fan tray by using the
Phillips (+) screwdriver, number 2.
WARNING: To avoid injury, do not touch the fan with your hands or any tools as
you slide the fan tray out of the chassis—the fan may still be running.
4. Grasp the handle on the fan tray and pull firmly to slide the fan tray halfway out
of the chassis.
5. When the fan stops spinning, slide the fan tray completely out of the chassis.
6. Place the fan tray in the antistatic bag or on the antistatic mat placed on a flat,
stable surface.
174 ■ Removing a Fan Tray from an EX3200 or EX4200 Switch
Complete Hardware Guide for EX3200 and EX4200 Ethernet Switches