Replacing The Fan Tray For The Mxk 319 Chassis - Zhone MXK Hardware Installation Manual

MXK Hardware Maintenance

Replacing the fan tray for the MXK 319 chassis

72
MXK Hardware Installation Guide
There are six fans in the MXK 319 fan tray. The loss of any single fan should
not cause the system to overheat. However, the fan tray should be replaced
promptly to avoid overheating in the event of a second fan failure.
When a fan has failed the fan alarm LED will come on.
The MXK 319 does not need to be powered down to remove the fan tray,
though the fan tray should only be removed long enough to replace it with
another complete fan tray in order to avoid overheating the system. This
replacement should take less than a minute.
Removing the fan tray for the MXK 319 chassis
1
Using a screwdriver, turn the screw lock mechanism — near the top of the
fan tray unit — counterclockwise several turns until it stops.
Figure 33: Removing the MXK 319 fan tray
2
Slide out the fan tray by pulling on the handle.