Nokia 7360 Intelligent Services Access Manager FX Series Hardware Installation Manual page 168

Installing a 7360 ISAM FX-12 shelf
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Procedure 32
The fan filter must be replaced each three to six months, depending on the amount of dust in the
CO. Use the following procedure to replace the fan unit.
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Install a fan filter in the fan unit of each shelf or replace the filter, if required (each 3 to 6
months, depending on the amount of dust in the CO). See Procedure 32,
filter" for the instructions to replace a fan filter.
STOP. This procedure is complete.
To replace a fan filter
Unpack and inspect the fan filter visually for physical damage.
If anything is missing or damaged, notify the transportation carrier and Nokia immediately.
Photograph all the damaged equipment. Keep all the inspection and packing documents as
a reference.
Warning — Possibility of equipment damage.
Do not install damaged equipment, as it can adversely affect other
equipment.
Put on the antistatic wrist strap and connect it to a grounding point.
Loosen the captive screw of the fan cover.
Gently remove the fan unit.
Carefully remove the fan filter and place it in the appropriate removal container.
Caution — To prevent possible damage to equipment, take care to not
allow dust into the cage card area, or onto card components, when
removing the fan filter.
Install the new fan filter.
Replace the fan unit cover and secure the cover by tightening the captive screws.
STOP. This procedure is complete.
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ANSI Hardware Installation Manual
DRAFT
"To replace a fan
Issue: 09