Whelen HWLRB2 User Manual

®

ENGINEERING COMPANY INC.

51 Winthrop Road
Chester, Connecticut 06412-0684
Phone: [phone]
Fax: [phone]

Howler™ Siren Speaker Bracket

Installation Guide:

2008 Expedition

Model: HWLRB2

Internet: www.whelen.com
Sales e-mail: [e-mail]
Canadian Sales e-mail: [e-mail]
Customer Service e-mail: [e-mail]

DANGER! Sirens produce extremely loud emergency warning tones! Exposure to these

tones without proper and adequate hearing protection, could cause ear damage and/or hearing
loss! The Occupational Safety & Health Administration (www.osha.gov) provides information
necessary to determine safe exposure times in Occupational Noise Exposure Section 1910.95.
Until you have determined the safe exposure times for your specific application, operators and
anyone else in the immediate vicinity should be required to wear an approved hearing protection
device. FAILURE TO FOLLOW THIS RECOMMENDATION COULD CAUSE HEARING LOSS!

Safety First

This document provides all the necessary information to allow your Whelen product to be properly and safely installed.
Before beginning the installation and/or operation of your new product, the installation technician and operator must
read this manual completely. Important information is contained herein that could prevent serious injury or damage.

• Proper installation of this product requires the installer to have a good understanding of automotive electronics,
systems and procedures.

• If mounting this product requires drilling holes, the installer MUST be sure that no vehicle components or other
vital parts could be damaged by the drilling process. Check both sides of the mounting surface before drilling
begins. Also de-burr any holes and remove any metal shards or remnants. Install grommets into all wire
passage holes.

• If this manual states that this product may be mounted with suction cups, magnets, tape or Velcro®, clean the
mounting surface with a 50/50 mix of isopropyl alcohol and water and dry thoroughly.

• Do not install this product or route any wires in the deployment area of your air bag. Equipment mounted or
located in the air bag deployment area will damage or reduce the effectiveness of the air bag, or become a
projectile that could cause serious personal injury or death. Refer to your vehicle owner’s manual for the air bag
deployment area. The User/Installer assumes full responsibility to determine proper mounting location, based
on providing ultimate safety to all passengers inside the vehicle.

• For this product to operate at optimum efficiency, a good electrical connection to chassis ground must be
made. The recommended procedure requires the product ground wire to be connected directly to the NEGATIVE
(-) battery post.

• If this product uses a remote device to activate or control this product, make sure this control is located in an
area that allows both the vehicle and the control to be operated safely in any driving condition. DO NOT
ATTEMPT TO ACTIVATE OR CONTROL THIS DEVICE IN A HAZARDOUS DRIVING SITUATION.

• It is recommended that these instructions be stored in a safe place and
referred to when performing maintenance and/or reinstallation of this
product.

• FAILURE TO FOLLOW THESE SAFETY PRECAUTIONS AND
INSTRUCTIONS COULD RESULT IN DAMAGE TO THE PRODUCT OR
VEHICLE AND/OR SERIOUS INJURY TO YOU AND YOUR PASSENGERS!

ACTIVATION OF THIS
SIREN MAY DAMAGE
UNPROTECTED EARS!

CAUTION

Loud siren noise can cause
hearing damage and/or loss.

Wear

Refer to OSHA Section 1910.95 prior

Protection!

to putting ANY siren into service!

Automotive: Sirens/Switches

For warranty information regarding this product, visit www.whelen.com/warranty

©2008 Whelen Engineering Company Inc.
Fo r m No . 142 1 0B ( 11111 0 )

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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 - 18
Elastic
Stop Nut

5/16 Flat
Washer

HOWLER™ Siren Speaker

SPEAKER
BRACKET

5/16 -18 X 1-1/4
Hex Head Bolt

MOUNTING STRAP
(QTY 2)

BRACKET

TOW HOOK

FENDER

5/16-18 Elastic Stop Nut

5/16 Flat Washer

Spacer

5/16-18 x 1 3/4"
Hex Head Bolt

FIG. 1

FIG. 2

Mounting Strap

Installation:

The passenger and driver side siren speaker brackets
both mount in the same manner. The passenger side is
shown here.

1. Secure the mounting straps (with spacer) to the siren
speaker tightening only the single bolt side.

IMPORTANT! The slotted holes in the siren speaker
must face down toward the road after mounting so that
water will not be trapped inside.

2. Secure the speaker bracket to the passenger (or
driver) side mounting bracket.

3. Secure the siren speaker to the speaker bracket you mounted in step 2 (Fig. 2).
Tighten all mounting hardware firmly.

4. Remove the 2 bolts that hold the tow hook onto the vehicle (Fig. 1).

5. Slide the mounting bracket between the tow hook bracket and the vehicle and
secure both to the vehicle using the tow hook mounting hardware.

6. Extend the BLACK (-) negative and WHITE (+) positive wires to your siren
amplifier and connect as described in the amplifiers instructions.

5/16
Flat
Washer

5/16-18
Elastic Stop Nut

1/4-20 x 1"
Hex Head Cap Screw

Speaker Bracket

5/16-18 x 1 1/4"
Hex Head Bolt

USE TOW HOOK

MOUNTING

HARDWARE HERE

Mounting Bracket

1/4 Flat Washer

1/4-20
Elastic Stop Nut

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

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