Calix ODC-120, Руководство по установке

Страница: 42 / 44

36
Calix ODC-120 Installation Guide
Proprietary Information: Not for use or disclosure except by written agreement with Calix.
© 2005 Calix. All Rights Reserved.
10.2.3 Internal Fan Replacement
Step 1: If not already done, open the rear cabinet doors and reset the intrusion alarm as
described in Section 3., Opening And Closing The Cabinet Doors, and Section 3.1,
Resetting The MESA® Intrusion Alarm
Step 1: Disconnect power to both the fans within the Hx assembly. Verify that power is off
before proceeding.
Step 2: Disconnect the power plugs from the fans.
Step 3: Using 216-type tool, remove the four bolts from the corners of the fan access cover
and slide the Hx assembly out as shown in Fig. 38.
Step 4: Using the 216-type tool, remove the four bolts holding the two fan mounting plates
to the fan access cover. See Fig. 39.
Step 5: Set the hardware and fan access cover safely aside.
Step 6: Using the 216-type tool, remove the fan from it’s mounting plate, as shown in
Fig. 40.
Step 7: Handle the old fan according to local practices.
Step 8: Install the replacement fan using the hardware removed previously.
Step 9: Reinstall the two fan mounting plates to the fan access cover. See Fig. 39.
Fig. 38 : Removing Internal Fan Assembly
Fig. 39 : Removing Internal Fan Access
Cover
Fig. 40 : Removing Internal Fan From
Mounting Plate