Federal Signal Corporation GL2 User manual

2562054A
REV. A 905
Printed in U.S.A.
INSTRUCTION SHEET
FOR
GRILLE LIGHT MODEL GL2
SAFETY MESSAGE TO INSTALLERS AND USERS
WARNING
People’s lives depend on your safe installa-
tion of our products. It is important to read,
understand and follow all instructions
shipped with the products. In addition, listed
below are some other important safety
instructions and precautions you should
follow:
• To properly install this light: you must
have a good understanding of automotive
electrical procedures and systems, along
with proficiency in the installation and
use of safety warning e uipment.
• This product contains high intensity LED
devices. To prevent permanent eye
damage, DO NOT stare into the light
beam at close range.
• DO NOT install e uipment or route
wiring in the deployment path of an air
bag.
• When drilling into a vehicle structure, be
sure that both sides of the surface are
clear of anything that could be damaged.
• In order for the light to function prop-
erly, a separate ground connection must
be made. If practical, it should be con-
nected to the negative battery terminal.
At a minimum, it may be attached to a
solid metal body or chassis part that will
provide an effective ground path as long
as the light system is to be used.
• Locate light control so the VEHICLE and
CONTROL can be operated safely under
all driving conditions.
• Do not attempt to activate or deactivate
light control while driving in a hazardous
situation.
• You should fre uently inspect the light to
ensure that it is operating properly and
that it is securely attached to the vehicle.
• File these instructions in a safe place and
refer to them when maintaining and/or
reinstalling the product.
Failure to follow all safety precautions and
instructions may result in property damage, serious
injury, or death to you or others.
A. GENERAL.
The Model GL2 is a grille mount LED light designed to
be used in a flashing mode. Lens colors (amber, red, or blue)
are specified when ordering. The lenses are interchange
able, and can be ordered separately.
B. KIT CONTENTS LIST.
Qty. Description
1 Nut, Hex, 8mm, SS
1 Washer, Flat, 8mm, SS
1 Washer, Split, 8mm, SS
1 Screw, Hex Hd., 8 x 25mm
1 Block, Pin
1 Nut, Plastic
1 Washer, Rubber
2 Bracket, Plastic
1 Screw, Allen Hd., 8 x 45mm
1 Nut, Stop, Hex, 8mm
C. INSTALLATION.
NOTE
For maximum coverage and effectiveness, the light
assembly should be mounted in a horizontal
orientation.
1. Metal Bracket Mounting.
To install the unit using the installed metal
bracket, proceed as follows:
a. Determine the desired mounting location.
Scribe drill position marks on the mounting surface for the
8mm mounting bolt and for a cable routing hole (if desired).
CAUTION
Before drilling holes in ANY part of a vehicle, be
sure that both sides of the mounting surface are
clear of parts that could be damaged; such as brake
lines, fuel lines, electrical wiring or other vital
parts.
b. Drill a mounting hole and cable routing hole
(if desired) at the previously scribed drill position marks.
c. Secure the light assembly to the mounting
surface using the bolt, washer, lockwasher, and nut as
shown in figure 1.
2. Plastic Bracket (Motorcycle) Mounting.
a. Remove the metal bracket from the light
assembly.

b. See figure 2. Attach the plastic brackets to the
light assembly using the 8mm allen head bolt and the 8mm
hex stop nut.
c. Determine the desired mounting location.
Scribe a drill position mark on the mounting surface.
CAUTION
Before drilling holes in ANY part of a vehicle, be
sure that both sides of the mounting surface are
clear of parts that could be damaged; such as brake
lines, fuel lines, electrical wiring or other vital
parts.
d. Drill a 1 1/32" mounting hole at the previously
scribed drill position mark.
e. See figure 2. To prevent the light assembly
from rotating, the pin block can be installed. If desired,
position the light assembly on the mounting surface and
mark the center of the notch where the pin block is located.
File a 3/16" radius notch at the marked location.
f. See figure 2. Secure the light assembly to the
mounting surface using the rubber washer, pin block (if
desired), and plastic nut.
Figure 1. Figure 2.
D. ELECTRICAL CONNECTIONS.
NOTE
The light is completely wired at the factory and
does not require additional internal wiring. All the
conductors necessary for control of all functions are
contained in the two conductor cable.
The basic light function of the unit must be controlled
by a user supplied flasher and switches. Before proceeding,
ensure that the light assembly has been installed on the
vehicle in accordance with the instructions.
WARNING
Light system controls must be located so that
the VEHICLE and CONTROLS can be oper-
ated safely under all driving conditions.
1. Route the user supplied control cable into the
vehicle near the eventual location of the user supplied
control head.
WARNING
To prevent personal injury and/or damage to
vehicle components, in the event of a short
circuit in the power cable, install a fuse in
each incoming cable conductor.
-2-
GRILLE LIGHT ASSE BLY
WITH OUNTING
BRACKET
POWER
SUPPLY
290A5106
OUNTING
SURFACE
LOCKWASHER,
8mm
FLAT WASHER,
8mm
HEX NUT,
8mm
CABLE HOLE
(IF DESIRED)
GRILLE LIGHT ASSE BLY
WITH OUNTING
BRACKET
POWER
SUPPLY
SCREW, ALLEN HEAD
8mm x 45mm
PLASTIC
BRACKETS
290A5107
OUNTING
SURFACE
RUBBER WASHER
PIN BLOCK
HEX STOP
NUT, 8mm
PLASTIC NUT
NOTCH, 3/16" RADIUS

2. For proper light operation, the light assembly
control cables must be properly terminated. Using figure 3
as a guide, make the appropriate electrical connections.
Ensure that the lines are adequately fused as shown in
figure 3.
3. Connect the black lead to chassis ground.
4. Connect the red wire to the +12VDC supply or
user supplied flasher (see figure 3).
NOTE
Any of the light assembly functions can be acti
vated by applying +12VDC to the appropriate
control line. The heavy black lead ( ) must be
connected to vehicle ground to perform a function
check.
E. MAINTENANCE.
1. General.
WARNING
Crazing (cracking) of lenses will cause
reduced effectiveness of the light. Do not use
cleaning agents (which will cause crazing)
such as strong detergents, solvents, or
petroleum products. If crazing of lenses does
occur, reliability of light for emergency
signalling purposes may be reduced until
lenses are replaced.
Ordinary cleaning of the plastic lenses can be
accomplished by using mild soap and a soft rag. Should fine
Figure 3.
scratches or a haze appear on a lens, they can ordinarily be
removed with a non abrasive, high quality, one step,
automotive paste cleaner/wax and a soft cloth.
2. LED Mechanism Replacement.
a. See figure 4. Remove and retain the four
screws which secure the lens. Carefully pull the lens
straight away from the grille light assembly.
b. Remove and retain the three phillips screws
which secure the mechanism assembly to the housing.
c. Disconnect the red and black leads at the
quick connect terminals.
d. Connect the red and black wires to the new
mechanism assembly. Be sure to observe the correct
polarity.
-3-
+12VDC
FUSE
290A5108
FEDERAL SIGNAL CORPORATION Emergency Products
PROGRA
POWER
+PATTERN
SELECT
GND
-
1
OUT 2
OUT
-
GND -
GND
VOLTS
12/24 SERIES
A1
ODEL
650205
GL2 LIGHT
HEAD 1
GL2 LIGHT
HEAD 2
RED
BLACK
RED
BLACK
650205 FLASHER
GND

e. Install the new mechanism in the housing and
secure with the previously removed phillips screws.
f. Replace the lens and trim ring and secure
with the previously removed screws.
F. REPLACEMENT PARTS.
Description Part No.
Lens, Blue, Fluted 8575068
Lens, Red, Fluted 8575068 01
Lens, Amber, Fluted 8575068 02
LED Mechanism Assy., Amber 8654189A
LED Mechanism Assy., Blue 8654189B
LED Mechanism Assy., Red 8654189R
SAFETY MESSAGE TO OPERATORS
WARNING
Peoples’ lives depend on your safe use of our
products.
Listed below are some important safety
instructions and precautions you should
follow:
• Although your warning system is operat-
ing properly, it may not be completely
effective. People may not see or heed
your warning signal. You must recognize
this fact and continue driving cautiously.
• Also, situations may occur which ob-
struct your warning signal when natural
or man-made objects are between your
vehicle and others, such as: raising your
hood or trunk lid. If these situations
occur, be especially careful.
• At the start of your shift, you should
ensure that the light is securely attached
and operating properly.
Failure to follow these safety precautions may
result in property damage, serious injury, or death to
you, to passengers, or to others.
RETAIN AND REFER TO THIS MESSAGE
-4-
Figure 4.
290A5109
HALOGEN REFLECTOR HEX NUTS (2)
GRO ET
LENS
FLUTED
SCREWS (2) GASKET
SCREWS (3)
SCREWS (4)
SCREWS (4)
BRACKET
PLASTIC
HOUSING OUNTING
BRACKET