Nokia 7360 Intelligent Services Access Manager FX Series Hardware Installation Manual page 342

Installing a 7360 ISAM FX-4 shelf
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Procedure 74
The fan filter must be replaced each 3 to 6 months, depending on the amount of dust in the CO).
Use the following procedure to replace the fan filter.
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Install the new fan unit:
i Gently insert the fan unit into the fan area until the backplane connectors are fully
mated.
ii If a fan filter was installed, re-insert the fan filter.
iii Replace the fan unit cover and secure the cover and the fan unit by tightening the
captive screw.
In the same way, install the fan units of other shelf units, if any.
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 the 7360 ISAM FX Product Information Guide for information on orderable part
numbers.
STOP. This procedure is complete.
To replace a fan filter
Loosen the captive screw of the fan cover; see Figure 192.
Gently remove the fan unit.
Carefully remove the fan filter and place it in the appropriate removal container.
Caution — Be careful when removing the fan filter to ensure that dust
will not get into the card cage area and onto the card components to
prevent possible damage to the other equipment.
Install the new fan filter.
Replace the fan unit cover and secure the cover by tightening the captive screw.
STOP. This procedure is complete.
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ANSI Hardware Installation Manual
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Issue: 09