Aution – EXFO FG-750 User Manual
Page 261
Maintenance
Fiber Guardian
247
Replacing the Air Filter
To replace the air filter:
1. If you are using a fiber management tray, fold down the protective
window. For more information, see Working with the Fiber (Patchcord)
Management Tray on page 36.
2. Turn off the unit and disconnect it completely from the power sources
(turn off both disconnect devices).
3. Put on an antistatic strap and connect it to the connector provided for
that purpose on the front panel of the unit.
4. Turn the fan compartment screws counterclockwise until the
compartment is loose. Since the screws are captive screws, you
cannot remove them completely.
C
AUTION
To avoid dropping the fan compartment and damaging the unit,
the fan, or the fan cord, hold the fan compartment firmly. Do not
allow the fan compartment to hang over the edge of a rack or a
table.
Fan compartment
Turn screws
counterclockwise
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