Federal Signal Corporation 300X Consignes Pour L'installation Et L'utilisation page 8

V. MAINTENANCE.
Failure to follow all safety precautions and instructions may result in property
damage, serious injury, or death to you or others.
• Read and understand all instructions before performing maintenance on
this unit.
• Do not perform maintenance on this unit when circuits are energized.
• Periodic checks should be made to ensure that effectiveness of this
device has not been reduced because speaker has become clogged with
a foreign substance or because objects have been placed in front of the
speaker.
• Any maintenance to this unit MUST be performed by a trained electri-
cian in accordance with the National Electrical Code and the local codes.
• Never alter this unit in any manner. Safety in hazardous locations may
be jeopardized if additional openings or alterations are made to this
device.
• The nameplates, which contain cautionary or other information of im-
portance to maintenance personnel, should not be obscured if exterior of
device is painted.
Explosion hazard—substitution of components may impair suitability for
Class I, Division 2 and Class I, Zone 2.
Property damage, serious injury or death could occur if this product's ma-
chined sealing surfaces are damaged. To maintain the effectiveness of the ex-
plosion-proof enclosure, use caution to avoid damaging the machined surfaces.
Unauthorized repair/servicing of the unit may result in degradation of perfor-
mance and/or property damage, serious injury, or death to you or others. If a
malfunctioning unit is encountered, do not attempt any field repair/retrofit of
parts.
SAFETY MESSAGE TO MAINTENANCE PERSONNEL
-7-