Removing The Fan Tray - Cisco NCS 4000 Series Hardware Installation

Removing and Replacing Chassis Components
d) Swing the door closed and turn the knob to lock.
Step 7
To install the optional key lock:
a) Open the door.
b) Disassemble the keyless block.
On the rear of the door, loosen the screw and remove the retention feature (latch), lock washer and M22
nut and then, on the front of the door, pull out the keyless block.
Figure 134: Disassembling the keyless block
c) Assemble the key block.
On the front of the door, insert the key block and the front washer and then, on the rear side of the door,
lock the retention M22 nut, insert the lock washer and retention feature (latch), and tighten the screw.

Removing the Fan Tray

When servicing the system you must remove the fan tray and replace it in under a minute.
Warning
1- Keyless block
3- M22 nut
5- Retention feature
2- Washer
4- Lock washer
6- Screw
Hardware Installation Guide for Cisco NCS 4000 Series
Removing the Fan Tray
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