Whelen HWLRB12 - Manual (Page 2)

Page 2
Existing
Hardware
Mounting
Bracket
Support
Bracket
1/4 - 20
ELASTIC
STOP NUT
vehicle
5/16 X 1 HEX
HEAD SHEET
METAL SCREW
1/4" FLAT
WASHER
SPEAKER
5/16 Flat
Washer
5/16 -18 X 1-3/4
Hex Head Bolt
Spacer
Mounting
Bracket
Mounting
Strap
Mounting
bracket
slides
betw
een
mounting
straps
5/16 -18 X
1-1/4 Hex
Head Bolt 5/16 Flat
Washer 5/16 - 18
Elastic
Stop Nut
Passenger side shown
1/4 - 20 X 1
HEX HD
CAP SCREW
Securing speaker
to mounting
bracket
Bottom of
mounting strap
5/16 - 18
Elastic
Stop Nut
Installation:
1. This bracket will mount to the
frame using existing mounting
hardware. Remove the 2 bolts
from the vehicle, shown in figure
1.
2. Secure the support bracket to the
siren speaker using the supplied
mounting hardware and tighten
firmly (See illustration).
3. Next, secure the mounting
bracket to the siren speaker and
also to the support bracket using
the supplied hardware and tighten
firmly.
4. Holding the siren speaker in
place, line up the 2 holes in the
mounting bracket with the 2 holes
in the vehicle frame where you
removed the bolts in step 1 and
re-insert the 2 bolts.
5. Tighten the 2 bolts firmly and the installation
is complete (Fig. 2).
6. Extend the WHITE (positive) and BLACK (negative) speaker wires to your
siren amplifier and refer to the amplifiers instructions for connections.
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.
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!