Whelen HWLRB11 - Manual (Page 2)

Page 2
BUMPER
1/2" Flat Washer
1/2" Flat
Washer
1/2-13 X 1-1/4"
Hex Head Bolt
1/2" Flat Washer (Qty 2)
MOUNTING
BRACKET
MOUNTING
BRACKET
MOUNTING
BRACKET
MOUNTING
STRAP
5/16 - 18 Elastic
Stop Nut
5/16 - 18 X 1 - 3/4
Hex Head Screw
SPACER
5/16 Flat Washer
5/16 -18 X 1-1/4
Hex Head Bolt
5/16 Flat
Washer
Speaker
Strap
5/16 - 18
Elastic
Stop Nut
1/2" Flat Washer
1/2" Elastic Stop Nut
Mounting
bracket
Slides
between
Mounting
Straps
1/2" Elastic Stop Nut
Speaker
Fig. 4
Installation:
1. This bracket will
mount to the
inside of the front
bumper on either
side using 2
existing holes
(The passenger
side is shown).
Locate the 2
fasteners (Fig. 1) near the front of the bumper and remove them.
2. Secure the top part of
the mounting straps to
the siren speaker
using the supplied
hardware (Fig. 2).
3. Loosely secure the
bottom part of the
mounting straps to the
mounting bracket
leaving some play, so
you will be able to maneuver the unit into the mounting area (Fig. 2).
4. Secure the mounting
bracket to the inner
bumper using the 2
holes located in step 1
(Figs. 3 & 4). Follow
the mounting order in
Figure 2. Washers are
used to compensate
for the uneven
bumper.
5. With the speaker in place, firmly tighten the hardware you installed in
step 3 which secures the speaker to the mounting bracket.
6. Extend the WHITE (positive) and BLACK (negative) speaker wires to
your siren amplifier and refer to the amplifiers instructions for
connections.
IMPORTANT! READ THESE WARNINGS BEFORE CONTINUING!
The Howler™ Supplemental Siren was designed for use in high-risk areas such as an intersection. It is not intended to be, nor should be
operated as a replacement or alternative to the vehicle’s primary siren.
The low-frequency tones of the Howler™ demonstrate significantly different audio characteristics as compared to those of a traditional higher-
frequency siren. While the low-frequency tones are better able to penetrate other vehicles, thus alerting drivers to the presence of the
responding emergency vehicle, these tones may also penetrate into the responding vehicle itself. This could potentially expose the operator to
increased noise levels.
To help eliminate overexposure, the Howler™ siren has been designed with a built-in timing circuit. The Occupational Safety & Health
Administration (OSHA) (www.osha.gov) provides information necessary to determine safe exposure times in Noise and Hearing Conservation,
Section 1910.95 (Occupational Noise Exposure). Until you have determined the safe exposure times for your specific application, this siren
should be configured for the minimum operating time and operators should be required to use an approved hearing protection device.
FAILURE TO FOLLOW THIS RECOMMENDATION COULD CAUSE HEARING LOSS!
IMPORTANT! It is the responsibility of the installation technician to make sure that the installation and operation of this product
will not interfere with or compromise the operation or efficiency of any vehicle equipment!
IMPORTANT! Before returning the vehicle to active service, visually confirm the proper operation of this product, as well as all
vehicle components/equipment.
Fig. 3
Fig. 1
Fig. 2