Nortel DualMode 800, Maintenance Manual

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2-8 Periodic maintenance
411-2051-500 Draft 00.01 November 1999
Housekeeping
Heating/air conditioning
Proper temperature is essential to the functioning of the enclosure. Check any
alarms due to the environment, such as high or low temperature, every time
you are at the site.
Dust control
Keep dust levels to a minimum by mopping the floor once a month, taking
care not to get the equipment wet. Whenever you remove a transceiver or
power amplifier, wipe off the dust on the unit and shelf slides. Dust
accumulation on circuit boards and heat sinks interferes with heat dissipation
and shortens the life of the equipment. Dust in the air clogs fans and air
conditioners, also raising the temperature.
Statutory requirements
Fire equipment, hazard signs and exit signs may be required by law. Make
sure required signs are present and safety equipment is maintained.
Site licenses
Radio and tower and business licenses are often required to operate a cell site.
It may be worth your while to check up on these once a year to ensure that
they are being maintained, whether they are located on the site or with your
company’s legal department.
Trash and loose articles
Keep the inside of your enclosure as clean and tidy as possible. Trash and
loose articles pose fire and tripping hazards and should be removed after
every visit.
Site grounds keeping
Tall grass can present a fire hazard; poorly kept trees can lean on or fall on the
enclosure. Snow and ice removal on and around the enclosure may be a
statutory or legal liability requirement in some jurisdictions. Grounds keeping
is often contracted out to a specialty firm.
Building service
If the enclosure uses AC mains service from overhead poles, take a look at the
drop and service entrance once a year. Look for obviously damaged insulation
and threats from overhanging trees.
Security
Check fences, gates, barbed wire and razor ribbon, both around the site and
around the tower guy anchors. Check door locks and gate locks before leaving
the site.