Whelen HWLRB7 User Manual

®

ENGINEERING COMPANY INC.

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

Howler™ Siren Speaker Bracket

Installation Guide:

2008 Chevrolet Impala

Model: HWLRB7

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.
Form No.14217B (010410)

Page 1

RAISED
AREA

Fig. 1

Fig. 4

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!

Installation: Front of Vehicle

Front of Vehicle

M

ounting

RAISED AREA

ROAD

Fig. 1

Fig. 1

View

of the

1. Remove the gravel shield from the vehicle and set it aside.

2. Locate the mounting area. The speaker will mount on the driver side to a hole
in the frame toward the front of the vehicle (Fig. 1).

3. Secure mounting
clamp to vehicle
using the front and
rear brackets. There

Fig. 2

Front of
Vehicle

is a raised area on

RAISED

the frame, near the
mounting hole. The

RAISED

AREA

AREA

front bracket goes on
this side. One of the
forks on the bracket
rests on the raised
area (Fig. 2).

4. Secure the mounting
bracket to the
assembled front and
rear brackets (Fig. 3).

5. Secure the two
mounting straps to the
mounting bracket.

5/16 - 18 X 1-1/4
HEX HEAD BOLT

Tighten the parts snugly, but do not tighten all the way (Fig. 3).

6. Slide the siren speaker into the mounting strap and insert the mounting bolt
and spacer into the
bottom strap hole to
hold the speaker in

Fig. 3

place while you add
the bottom mounting
hardware. Firmly
tighten all of the
hardware (Fig. 3).

IMPORTANT: The
slotted holes in the
speaker must face
the road after
mounting for
drainage.

7. Extend the BLACK (-) negative and
WHITE (+) positive speaker wires to
your siren amplifier and follow
amplifier instructions.

8. Reinstall the gravel shield
removed in step 1 to complete the
installation.

Location

vehicle

looking

5/16" ELASTIC
STOP NUT

5/16" ELASTIC
STOP NUT

FRAME

up

5/16 FLAT
WASHER

5/16 FLAT
WASHER

from

5/16 - 18 X 1 HEX HD BOLT
5/16 SPLIT LOCK WASHER

5/16" FLAT
WASHER

the

road.

5/16 - 18
ELASTIC
STOP NUT

5/16 - 18 X 1-1/4
HEX HD BOLT

5/16 - 18 X 1-3/4
HEX HD BOLT

Installation: Rear of Vehicle

Fig. 4

Fig. 4

Bottom

view

. Rear of vehicle looking up from

1. Place the mounting bracket in its exact mounting position and mark off the 6
mounting holes (Fig. 4).

IMPORTANT NOTE!
This installation uses
Rivnuts™ to secure the
bracket to the vehicle.
This type of hardware
requires the use of a
specialized installation
tool. Refer to the
owners manual
included with this
tool for proper
installation. Be
sure to follow
mounting hole
specifications

1-1/4 - 20 X 1
HEX HD
SCREW

precisely!

2. Drill the mounting
holes with a .391

5/16 INTERNAL
TOOTH LOCK
WASHER

5/16 FLAT
WASHER

BRACKET

Slides between
mounting strap

ends.

5/16-18 X 1-1/4
Hex Head
Screw SS

drill bit and secure
the bracket with
the 6 supplied riv
nuts.

3. Secure mounting
strap to speaker and
speaker to mounting
bracket. Tighten all
hardware securely

5/16-18 X
1-3/4 Hex Head
Screw SS

(Fig. 5).

IMPORTANT: The slotted holes in the speaker must face the road for drainage.

4. Extend the BLACK (-) negative and WHITE (+) positive
speaker wires to your siren amplifier. Follow the amplifier
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, confirm the proper operation of this product, as
well as all vehicle components/equipment.

M

on

ount to

riv

vehicle

the road.

nuts

SPACER

5/16-18
Elastic
Stop Nut

5/16 Flat
Washer

Fig. 5

SPACER

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