24
Maintenance
Modulator High Powered Omni Speaker (Model MOD Series)
Federal Signal www.fedsig.com
Pre-Operation Checkout
After the siren has been completely installed, perform the following checks before putting
the siren into service.
SOUND HAZARD: The output sound level of a siren is capable of causing severe
hearing discomfort or permanent hearing damage. Therefore, ALWAYS wear
appropriate hearing protection when performing tests or maintenance on the
siren, and post warnings to warn people before they are exposed to excessive
sound pressure levels.
1. Ensure all connections in the
Control and Battery Cabinets
are correct and proper-
ly tightened.
2. Activate wail on the control panel. Check for proper sound output and siren tone.
3. After the installation is complete and it has been established that the siren is oper-
ating properly, Federal Signal recommends that all control devices be padlocked to
discourage tampering and vandalism.
Maintenance
SOUND HAZARD: Service or maintenance should be performed by qualified
personnel familiar with the siren, associated controls, and power sources being
used.
The sound output of sirens is capable of causing permanent hearing damage at
short distances. Therefore, ALWAYS wear hearing protection when performing
tests or maintenance on the siren and avoid excessive exposure.
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.
Before servicing or maintaining, ensure that remote activation cannot occur and
disconnect power to the siren and its controls.
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
verifies that it remains ready for use in an emergency but also instills public confidence in
the reliability of the warning system.
In order to minimize the possibility of siren failure, annual inspection and maintenance are
desirable.
Perform a driver inspection as described in the next section.
