SECTION IV
SERVICE AND MAINTENANCE
4-1. GENERAL.
WARNING
Service or maintenance should be performed by qualified personnel familiar
with the siren, associated controls, and power sources being used.
The sound output of the siren is capable of causing permanent hearing
damage. Use adequate hearing protection and avoid excessive exposure.
Before servicing or maintaining, ensure that remote activation can not occur
and disconnect power to the siren and its controls.
The Modulator Series Siren is designed to require a minimum of maintenance. In
addition, experience has shown that all Federal sirens are highly reliable devices. However,
if a siren failure does occur, Federal will provide technical assistance with problems that
cannot be handled satisfactorily and promptly locally. If assistance is desired, contact:
FWS Service Department
Federal Signal Corporation
2645 Federal Signal Drive
University Park, Illinois 60466
1 (800) 548-7229
WARNING
The output level of a Modulator Series Siren is capable of causing permanent
hearing damage. Therefore, ALWAYS wear hearing protection when
performing tests or maintenance on the siren.
To prevent the siren from sounding always turn off the power to the siren at
the disconnect switch and remove any DC power being supplied by the
Battery Box before inspecting or maintaining the siren.
4-2. PREVENTIVE MAINTENANCE.
Test the Siren for proper operation at least once a month. A daily test at noon, curfew,
or other selected time is preferred. This not only enhances the usefulness of the siren and
varifies that it remains ready for use in an emergency, but instills public confidence in the
reliability of the warning system.
In order to minimize the possibility of siren failure, annual inspection and maintenance
is desirable.
Perform a driver inspection as described in Section 4-3.
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