Federal Signal Corporation SLR LED Manual

Installation and
Maintenance Manual
2562676A
REV A1 0520
Printed in U.S.A.
© Copyright 2012-2020 Federal Signal Corporation
SLR LED
Rotator Beacon

blank page
Limited Warranty
This product is subject to and covered by a limited warranty,
a copy of which can be found at www.fedsig.com/SSG-Warranty.
A copy of this limited warranty can also be obtained by written
request to Federal Signal Corporation, 2645 Federal Signal Drive,
University Park, IL 60484, email to [email protected] or
call [phone].
This limited warranty is in lieu of all other warranties, express or
implied, contractual or statutory, including, but not limited to the
warranty of merchantability, warranty of tness for a particular
purpose and any warranty against failure of its essential purpose.
2645 Federal Signal Drive
University Park, Illinois 60484
www.fedsig.com
Customer Support
Police/Fire-EMS: 800-264-3578 • [phone]
Work Truck: 800-824-0254 • [phone]
Technical Support 800-433-9132 • [phone]
All trademarks are property of their respective owners.

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Contents
Safety Messages..................................................................................... 4
Overview.................................................................................................. 8
Unpacking the Product .......................................................................... 8
Preparing for the Installation................................................................. 8
Permanently Mounting the Beacon ...................................................... 9
Wiring the Permanently Mounted Beacon ......................................... 11
Pipe-Mounting and Wiring the Beacon............................................... 12
Selecting a Rotation Speed ................................................................. 13
Maintaining the Beacon ....................................................................... 16
Getting Technical Support................................................................... 17
Getting Repair Service......................................................................... 17
Ordering Replacement Parts............................................................... 18
Tables
Table 1 Product Specications ............................................................ 9
Table 2 Replacement parts ................................................................. 18
Figures
Figure 1 Permanent-mounted beacon with wiring ........................... 10
Figure 2 Overhead view of mounting holes in the base .................. 11
Figure 3 Pipe-mounted beacon with wiring ...................................... 13
Figure 4 Location of RPM jumper and pins ...................................... 14
Figure 5 Template for permanent mounting (Not to scale).............. 19

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Safety Messages
Safety Messages
Safety Messages for Installers and Service Personnel of
Warning Light Equipment
People’s lives depend on your proper installation and servicing
of Federal Signal products. It is important to read and follow all
instructions shipped with this product. Listed below are some other
important safety instructions and precautions you should follow:
Before Installation or Service
Qualifications
• To properly install or service this equipment, you must
have a good understanding of automotive mechanical and
electrical procedures and systems, along with proficiency
in the installation and service of safety warning equipment.
Always refer to the vehicle’s service manuals when performing
equipment installations on a vehicle.
Light Hazards
• To be an eective warning device, this product produces bright
light that can be hazardous to your eyesight when viewed at a
close range. Do not stare directly into this lighting product at a
close range, or permanent damage to your eyesight may occur.
• Do not install the light system in an area that would block,
impair, or blind the driver’s vision. Ensure that the light system is
mounted in a position that is outside the driver’s field of vision,
so the driver can safely operate the vehicle.
• Federal Signal power supplies and light heads are designed
to work together as a system. Combining light heads and a
power supply from dierent manufacturers may reduce the
warning eectiveness of the lighting system and may damage
the components. Verify or test your combination to ensure that
the system works together and meets federal, state, and local
standards or guidelines.

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Safety Messages
Electrical Hazards
• Strobe systems present a shock hazard because they use high
voltage to operate. Do not handle strobe cables, the power
supply, or bulbs or remove the lens while the equipment is
connected. Strobe systems can also hold their charge even
after they have been turned o. After disconnecting power to
the unit, wait 5 minutes before handling any parts of the strobe
system.
• A light system is a high current system. For the system to
function properly, a separate negative (–) connection and
positive (+) connection must be made. All negative connections
should be connected to the negative battery terminal, and a
suitable fuse should be installed on the positive battery terminal
connection as close to the battery as possible. Ensure that all
wires and fuses are rated correctly to handle the device and
system amperage requirements.
• Never attempt to install aftermarket equipment that connects
to the vehicle wiring without reviewing a vehicle wiring
diagram available from the vehicle manufacturer. Ensure that
your installation will not aect vehicle operation or mandated
safety functions or circuits. Always check the vehicle for proper
operation after installation.
• The lighting system components, especially light bulbs, strobe
tubes, LEDs, and the outer housing, get hot during operation. Be
sure to disconnect power to the system and allow the system to
cool down before handling any components of the system.
• Do not mount a radio antenna within 18 inches (45.7 cm) of the
lighting system. Placing the antenna too close to the lighting
system could cause the lighting system to malfunction or be
damaged by strong radio fields. Mounting the antenna too close
to the lighting system may also cause the radio noise emitted
from the lighting system to interfere with the reception of the
radio transmitter and reduce radio reception.
• Do not attempt to wash any unsealed electrical device while it is
connected to its power source.

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Safety Messages
During Installation and Service
• DO NOT get metal shavings inside the product. Metal shavings
in the product can cause the system to fail. If drilling must be
done near the unit, place an ESD-approved cover over the unit.
Inspect the unit after mounting to be sure there are no shavings
present in or near the unit.
• DO NOT connect this system to the vehicle battery until ALL other
electrical connections are made, mounting of all components is
complete, and you have verified that no shorts exist. If the wiring
is shorted to the vehicle body or frame, high current conductors
can cause hazardous sparks resulting in electrical fires or flying
molten metal.
• DO NOT install equipment or route wiring (or the plug-in cord) in
the deployment path of an airbag.
• If a vehicle seat is temporarily removed, verify with the vehicle
manufacturer if the seat needs to be recalibrated for proper
airbag deployment.
• Before mounting any components, check the manual to ensure
that the component you are installing is suitable for use in that
area of the vehicle. Many components are not suitable for use
in the engine compartment or other extreme environmental
exposure areas.
• Before drilling into a vehicle structure, ensure that both sides
of the surface are clear of anything that could be damaged.
Remove all burrs from drilled holes. To prevent electrical shorts,
grommet all drilled holes through which wiring passes. Ensure
that the mounting screws do not cause electrical or mechanical
damage to the vehicle.
• Refer to the manual packed with the lighting system for proper
electrical connections, additional precautions, and information.
• Because vehicle roof construction and driving conditions vary,
do not drive a vehicle with a magnetically mounted warning
light installed. The light could fly o the vehicle, causing injury

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Safety Messages
or damage. Repair of damage incurred because of ignoring this
warning shall be the sole responsibility of the user.
• Locate the light system controls so the VEHICLE and
CONTROLS can be operated safely under all driving conditions.
After Installation or Service
• After installation, test the light system to ensure that it is
operating properly.
• Test all vehicle functions, including horn operation, vehicle
safety functions and vehicle light systems, to ensure proper
operation. Ensure that the installation has not aected the
vehicle operation or changed any vehicle safety function or
circuit.
• Scratched or dull reflectors, mirrors, or lenses will reduce the
eectiveness of the lighting system. Avoid heavy pressure and
the use of caustic or petroleum based products when cleaning
the lighting system. Replace any optical components that may
have been scratched or crazed during system installation.
• Do not attempt to activate or deactivate the light system
controls while driving in a hazardous situation.
• Frequently inspect the light system to ensure that it is operating
properly and that it is securely attached to the vehicle.
• After installation and testing are complete, provide a copy
of these instructions to instructional sta and all operating
personnel.
• File these instructions in a safe place and refer to them when
maintaining and/or re-installing the product.
Failure to follow all safety precautions and instructions may result
in property damage, serious injury, or death.
Retain and refer to these messages.

8SLR LED Rotator Beacon
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Overview
Overview
The SLR LED Rotator Beacon provides a reliable signal with three
selectable RPM speeds. Models are available with flush or pipe
mounting. The available colors are red and amber. The light can
operate on a 12- or 24-volt power source.
Unpacking the Product
After unpacking the product, inspect it for damage that may have
occurred in transit. If it has been damaged, file a claim immediately
with the carrier, stating the extent of damage. Carefully check all
envelopes, shipping labels, and tags before removing or destroying
them.
Preparing for the Installation
To prepare for the beacon installation, assemble these installer-
supplied materials:
• 18 AWG (1 mm2) red and black wire for lengths up to 15 feet (5 m)
or minimum 16 AWG (1.5 mm2) wire for lengths greater than 15feet
(5 m). For extending wires from the installer-supplied switch,
20 AWG can be used if required.
• Fuseholder with 5 A fuse
• Two to three insulated butt connectors for the pipe mounting
option and a switch with a current capacity of at least 5 A.
• For the option of permanently mounting the beacon, three #10
pan head thread-forming screws and a #18 drill. For extreme
vibration conditions, use three #10-32 machine screws with #10
hex nuts and lockwashers for clearance holes.
• For the option of pipe mounting the beacon, a 1-inch, threaded
NPT pipe.
• An installer-supplied bushing for the wiring is optional.
Selecting a rotation speed is optional and should be done during
the installation. For more information, see “Selecting a Rotation
Speed” on page 13.

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Permanently Mounting the Beacon
Table 1 Product Specications
Input Voltage 11 Vdc to 28 Vdc
Nominal 12.8 Vdc or 25.6 Vdc
Input Current, Amber
(nominal)
2 A at 12.8 Vdc pulsed, 0.8 avg.
1 A at 25.6 Vdc pulsed, 0.4 avg.
Flash Rate 90 RPM is the default pattern.
75 RPM and 120 RPM patterns are available.
Dimensions (H x D) 5.73 x 7.1 in (14.55 x 18 cm)
Weight
(permanent mount/
pipe mount)
3.35 lb (1.52 kg)
Approvals SAE J1318, J845 Class 1, J845 Class 2
Permanently Mounting the Beacon
LIGHT HAZARD: To be an effective warning device, this product
produces bright light that can be hazardous to your eyesight when
viewed at a close range. Do not stare directly into this lighting
product at a close range, or permanent damage to your eyesight
may occur.
To permanently mount the beacon:
1. Place the supplied template (Figure 5 on page 19) on the
mounting surface and scribe the locations of the three
mounting holes in the base.
2. Scribe a hole for the wires at the center of the mounting
location and three holes for the installer-supplied fasteners.
3. Remove the template.
DRILLING PRECAUTIONS: When drilling holes, check the area
you are drilling into to ensure that you do not damage vehicle
components while drilling. All drilled holes should be de-burred,
and all sharp edges should be smoothed. All wire routings going
through drilled holes should be protected by a grommet or
convolute/split loom tubing.

10 SLR LED Rotator Beacon
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Permanently Mounting the Beacon
4. Drill a 0.375 in (9.53 mm) hole at the scribed position of the
wire-routing hole. Seal the hole with RTV. See Figure 1.
Figure 1 Permanent-mounted beacon with wiring
290A6874
Beacon
5 A
Fuse
(+) To Power
Source
(−) To Ground
Black
Red Switch
Mounting
Surface
0.375 in Dia. Hole (1)
Drill 0.170 in Dia.
for Tapped Hole (3)
Secured to Mounting
Surface with Installer-
Supplied #10 Hardware
Drill 0.2 in Dia.
Clearance Hole (3)
for Extreme
Vibration Conditions
See the mounting
template on page 19.
5. For the three mounting holes, select one of these options:
• For tapped holes use a #18 drill bit to drill a 0.17-inch
(4.32 mm) hole at the scribed mounting hole positions.
Use installer-supplied #10 pan-head thread-forming
screws.
• For extreme vibration conditions, drill a 0.2-inch clearance
hole. Use installer-supplied #10-32 machine screws with
#10 hex nuts and lockwashers.
6. Align the gasket over the drilled holes. Route the wires through
the gasket and wire routing hole in the base and gasket.

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Wiring the Permanently Mounted Beacon
7. Twist o the beacon dome from the base.
8. Secure the base to the mounting surface with the #10 Phillips
pan-head thread-forming screws.
Figure 2 Overhead view of mounting holes in the base
290A6875
REFLECTOR
9. Position the dome onto the base and twist it until it locks.
Wiring the Permanently Mounted Beacon
ENSURE CORRECT INPUT VOLTAGE: To avoid damage to the light,
ensure that the input voltage is the same as the voltage rating of the
light. Ensure that correct polarity is observed. Also ensure that unit
is properly fused.
To wire the beacon:
1. Connect one terminal of a installer-supplied switch, with
a current capacity of at least 5 A, to the red (+) wire of the
beacon. Additional 20 AWG (0.8 mm2) or larger wire may be
added, if required. See Figure 1 on the previous page.
2. Use 18 AWG (0.8 mm2) or larger wire to connect the remaining
switch terminal to one end of the installer-supplied fuseholder
and 5 A fuse.

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Pipe-Mounting and Wiring the Beacon
3. Connect the other end of the fuseholder to the positive (+)
terminal of the voltage source.
4. Connect the black (–) wire from the beacon to a known good
vehicle ground as close to the beacon as practical.
Pipe-Mounting and Wiring the Beacon
LIGHT HAZARD: This product contains a high-intensity LED device.
To prevent permanent eye damage, DO NOT stare into the light
beam at close range.
The base was designed for the optional installation onto the end of
a threaded 1-inch (25.4 mm) NPT pipe (Figure 3 on page 13).
To pipe mount and wire the beacon:
1. Determine the length of wires needed for the installation. For
lengths up to 15 feet (5 m), use minimum 18 AWG (1mm2) wire.
For lengths over 15 feet, use minimum 16 AWG (1.5 mm2) wire.
2. Strip 1/4 inch (5 mm) of insulation from the ends of the red and
black installer-supplied wires.
3. Use insulated butt connectors to connect the red and black
wires to the red and black wires from the beacon. Ensure that
the connectors are securely crimped and properly insulated.
4. Route the red and black wires through the pipe to the location
of the installer-supplied switch with a current capacity of at least
5A.
5. Screw the beacon onto the pipe. Ensure that the wires are not
pinched inside the pipe.
6. Connect one terminal of the installer-supplied switch to the red
(+) wire of the beacon.
7. Use minimum 18 AWG (1mm2) wire to connect the remaining
switch terminal to one end of the supplied fuseholder and 5 A
fuse.

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Selecting a Rotation Speed
8. Connect the other end of the installer-supplied fuseholder to
the positive (+) terminal of the voltage source.
9. Connect the black (–) wire from the beacon to a known good
vehicle ground as close to the beacon as practical.
Figure 3 Pipe-mounted beacon with wiring
Red
Black
Red
Black
Beacon
Insulated Butt
Connectors
(Installer Supplied) Threaded 1 in NPT Pipe
290A6877
5 A Fuse
(+) To Power
Source
(−) To Ground
Black
Red
Switch
Selecting a Rotation Speed
Selecting a rotation speed is optional and should be done during
installation. The jumper pins for selecting a speed are accessible
by removing the dome and reflector.
To change the RPM:
1. Disconnect power to the beacon.

14 SLR LED Rotator Beacon
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Selecting a Rotation Speed
2. Twist o the beacon dome from the base.
3. Locate the two screw-access holes on top of the reflector.
Remove both reflector screws with a T-20 Torx®screwdriver.
See Figure 4.
Figure 4 Location of RPM jumper and pins
Torx Screw (2)
Reflector
Assembly
Optics
Ring
Motor
RPM Jumper
120 RPM
75 RPM
90 RPM
290A6878
RPM Jumper Positions
4. Lift the reflector from the beacon assembly and set it aside. The
jumper pins are located between the optics ring and the motor
on the connection side of the wire harness.

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Selecting a Rotation Speed
5. The default jumper setting of 90 RPM is a single-pin position,
either the right or left pin. The settings for 75 RPM and 120 RPM
are both two-pin positions.
• To change the rotation speed to 75 RPM, pull the jumper
straight up from the pin and place it on the right two pins.
• To change the rotation speed to 120 RPM, pull the jumper
straight up from the pin and place it on the left two pins.
6. After selecting the rotation speed, position the reflector onto
the beacon assembly.
7. Secure the reflector with the two Torx®screws through the
screw access holes on the top of the reflector.
8. Position the dome onto the base and twist it until it locks.

16 SLR LED Rotator Beacon
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Maintaining the Beacon
Maintaining the Beacon
CLEANING POLYCARBONATE DOMES AND LENSES: Crazing (ne
cracks) of lenses causes reduced effectiveness of the light. Do
not use cleaning agents (which causes crazing) such as strong
detergents, solvents, or petroleum products. If crazing of lenses
does occur, reliability of light for emergency signaling purposes
may be reduced until lenses are replaced.
CLEANING POLYCARBONATE DOMES AND LENSES: To extend
the life of this device, periodic cleaning is necessary. Clean the
lens/dome with a mild, non-abrasive, neutral-pH cleaning agent
and a soft, clean cloth. Rinse the device thoroughly to ensure that
no cleaning agent residue remains. To avoid water spots, dry the
device with a soft clean cloth.
Failure to follow this precaution can cause crazing or cracking of
the lens/dome and voids the warranty claims for the light.
Frequently inspect the beacon to ensure that it is securing attached
to the vehicle and operates properly. Clean the beacon with a mild
soap and a soft rag.

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Getting Technical Support
Getting Technical Support
For technical support, please contact:
Federal Signal Corporation
Phone: [phone]
Fax: [phone]
Email: [email protected]
Getting Repair Service
The Federal Signal factory provides technical assistance with any
problems that cannot be handled locally.
Any units returned to returned to Federal Signal for service,
inspection, or repair must be accompanied by a Return Material
Authorization (RMA). Obtain an RMA from a Local Distributor or
Manufacturer’s Representative. Provided a brief explanation of the
service requested or the nature of the malfunction.
Address all communications to the following address.
Federal Signal Corporation
Service Department
2645 Federal Signal Drive
University Park IL 60484-3167

18 SLR LED Rotator Beacon
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Ordering Replacement Parts
Ordering Replacement Parts
To order replacement parts, call Customer Support at 1-800-264-
3578, 7 a.m. to 5 p.m., Monday through Friday (CT) or contact your
nearest distributor.
Table 2 Replacement parts
Description Part Number
Dome, Red 8627205-04
Dome, Amber 8627205-02
Gasket, Mounting 8627319

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Installallation and Maintenance Manual
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Ordering Replacement Parts
Figure 5 Template for permanent mounting (Not to scale)
IMPORTANT: Verify dimensions of mounting template.
90°
125°
Ø 5.56 IN
Ø 0.17 IN
Ø 0.17 IN
Ø0.17
IN
Ø 0.375 IN
FOR TAPPED HOLES
Ø0.2 IN
FOR CLEARANCE HOLES
FOR TAPPED HOLES
Ø 0.2 IN
FOR CLEARANCE HOLES
FOR TAPPED HOLES
Ø 0.2 IN
FOR CLEARANCE HOLES
FOR CLEARANCE
WIRE HARNESS HOLE
290A6885

2645 Federal Signal Drive
University Park, Illinois 60484
www.fedsig.com
Customer Support
Police/Fire-EMS: 800-264-3578 • [phone]
Work Truck: 800-824-0254 • [phone]
Technical Support 800-433-9132 • [phone]