3
Unpacking & Pre-Installation
A. UNPACKING
After unpacking the kit, carefully check all enve-
lopes, shipping labels, and tags before removing or de-
stroying them. Ensure that the parts listed in the KIT
CONTENTS LIST are contained in the packing carton.
B. INSTALLATION
To avoid reduction of sound output and dam-
age to speaker, ensure that speaker is mount-
ed with wires protruding from the bottom of
the speaker when viewing it from the front.
CAUTION
Before drilling holes in ANY part of a vehicle, be
sure that both sides of the mounting surface are
clear of parts that could be damaged; such as
brake lines, fuel lines, electrical wiring or other
vital parts. Note that the two rear bracket hole
locations MUST be protected during the drilling
operation.
a. Select an appropriate mounting location which
provides both adequate support and sufficient clearance for
the speaker assembly. In addition, the mounting location
should provide maximum signaling effectiveness while min-
imizing the sound reaching the vehicle’s occupants.
To avoid reduction of sound output, ensure
that the speaker is mounted with the sound opening
facing directly in the direction intended to warn.
NOTE
Because of the variety of vehicles and possible
mounting arrangements, installation details and
mounting bracket fabrication must be deter-
mined by the installer.
b. See figure 1. After speaker mounting is com
-
pleted, connect the two leads from the speaker to the elec-
tronic siren’s speaker cable. Refer to the instruction sheet
packed with the electronic siren for additional details.
All effective sirens produce loud sounds which may
cause, in certain situations, permanent hearing loss.
You should take appropriate precautions such as wear-
ing hearing protection.
c. Test the system for proper operation.
C. BAIL BRACKET MOUNTING
1. General
The supplied bracket is designed for mounting directly
on a surface which has been determined to be suitable for speaker
installation. In addition, it may be used to install the speaker on an
adapter bracket fabricated by the installer.
The bracket has two sets of speaker mounting holes.
Use the outer pair of holes when mounting on a horizontal surface.
Use the inner pair of holes when mounting on a vertical surface.
When using the inner pair of holes (vertical surface mounting),
space restrictions may require removal of the excess bracket mate-
rial that protrudes in front of the speaker.
NOTE
Because of the variety of vehicles and possible mounting
arrangements, installation details and mounting bracket
fabrication must be determined by the installer.
a. Select an appropriate mounting location which pro-
vides both adequate support and sufficient clearance for the speak
-
er assembly. In addition, the mounting location should provide max-
imum signaling effectiveness while minimizing the sound reaching
the vehicle’s occupants.
b. Attach the supplied bracket to the speaker using the
1/4-20 x 5/8” bolts, washers, and split lockwashers as shown in
figure 1 (vertical) or figure 2 (horizontal). Do not tighten the bolts
at this time.
To avoid reduction of sound output and damage to
the speaker, ensure that the speaker is mounted with
the wires exiting from the right side of the speaker
when looking at it from the front.
c. If necessary, remove the bracket from the speaker. Us-
ing the bracket as a template, scribe four drill positioning marks at
the selected mounting location.
CAUTION
Before drilling holes in ANY part of a vehicle, be sure
that both sides of the mounting surface are clear of parts
that could be damaged; such as brake lines, fuel lines,
electrical wiring or other vital parts.
Summary of Contents for C3500
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