Alcatel-Lucent 7750 SR-a4 Installation Manual page 188

Removing and Replacing a Fan Tray
188
• #2 Phillips or flat blade torque driver
To replace the fan tray:
Step 1. Align the fan tray with the guides in fan tray slot (Key 1 in
Step 2. Grip the replacement fan tray from the top and bottom of the faceplate and slide the
connector end halfway into the slot.
Step 3. Push on the faceplate of the fan tray until the connectors are fully seated.
Step 4. With a screwdriver, secure the fan tray into place by tightening the captive screws.
Torque to 4 to 5 lbf-in (0.45 to 0.56 N
Step 5. Verify the LED on the fan tray. The LED is lit green if functioning correctly or
amber if there is a fault. If there is no power to the fan tray, the LED is unlit.
.
m). Do not over torque.
7750 SR-a4 and SR-a8 Installation Guide
Figure 67).