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Replacing the Fan Tray on the SRX3400 Services Gateway
The Services Gateway has one fan tray that installs vertically in
the right rear of the chassis. The fan tray contains four fans.
The fan tray is hot-removable and hot-insertable. It weighs about 4.2 lb (1.9 kg).
To prevent overheating, install the replacement fan tray
immediately after removing the existing fan tray.
To replace the fan tray:
Attach an electrostatic discharge (ESD) grounding
strap to your bare wrist and connect the strap to one of the ESD points
on the chassis. For more information about ESD, see
Preventing Electrostatic Discharge Damage to the SRX3400 Services Gateway.
Turn the screw to the left on the fan tray door.
Open it to the right and remove it.
Figure 42: Removing the Fan Tray Door
Grasp the fan tray and pull it out 1 in. (25 mm)
to disengage its power connection. A mechanical latch stops the fan
tray from coming out any further.
Wait for the fans to stop spinning.
To avoid injury, do not proceed until the fans have stopped spinning.
After the fans have stopped spinning, lift upward
on the latch at the bottom of the fan tray to release it. (See
Figure 43: Removing the Fan Tray
Grasp the fan tray and pull it out approximately 6 in.
Place one hand under the fan tray to support it
and pull the fan tray completely out of the chassis and set it aside.
Grasp the replacement fan tray and insert it straight
into the chassis until you hear a click, indicating the latch has
Be sure the fan tray is correctly oriented in the slot,
with the latch on the bottom of the vertically aligned fan tray.
Press the fan tray into the chassis about 1 in.
(25 mm) beyond where the latch closes to engage the power connection.
Figure 44: Inserting the Fan Tray
fan tray door, and close and tighten the captive screw to secure it
in the chassis.
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