Whelen HWLRB18 - Manual (Page 2)

Page 2
Installation:
These two brackets will mount to the frame toward the front (just
behind the tow hook) using the existing hardware that secures the
tow hook. In figures 2 and 3 the front of the vehicle is shown with the
nose assembly removed. You do not have to remove the nose
assembly for this installation.
1. Secure both of the
speakers to the
brackets using the
suppled 5/16 X 1”
HEX HEAD SHEET
METAL SCREWS
(Fig. 1).
2. Remove the two
existing tow hook
bolts from the frame
on both the driver
and passenger side,
and secure the two
brackets to the
frame using these
bolts (Figs 2 & 3).
3. Extend the WHITE
(positive) wire and
the BLACK
(negative) wire to
your siren amplifier
and connect as
described in the
amplifiers
instructions.
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, 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!
5/16 X 1"
HEX HD
S H E E T
M E T A L
S C R E W
(QTY 4)
Fig. 1
Vent Hole Orientation
Mountin to Bracket g
VENT HOLES
MUST FACE
BOTTOM
         



Strap Retainer Brackets
If strap retainer brackets are present on your Howler
speaker, they must be removed for this installation.
Remove 4 screws and remove brackets.
Howler Front View