JetSonic Models JS and JSL Lightbar

JetSonic Models JS and JSL Lightbar
256A709
REV. C 297
Printed in U.S.A.
INSTALLATION AND MAINTENANCE INSTRUCTIONS
FOR
JETSONIC® MODELS JS AND JSL
LIGHT BAR
SAFETY MESSAGE TO INSTALLERS
OF
FEDERAL SIGNAL LIGHT SYSTEMS
I.
UNPACKING.
After unpacking the JetSonic light bar, inspect it
for damage that may have occurred in transit. If the
unit 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.
People’s lives depend on your safe installation 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:
II. INSTALLATION.
•
To properly install a light assembly: you
must have a good understanding of automotive electrical procedures and systems,
along with proficiency in the installation
and use of safety warning equipment.
The light bar is completely wired at the factory
and does not require any additional internal wiring.
All the conductors necessary for control of any and all
basic and optional functions are contained in the
cable.
•
When drilling into a vehicle structure,
be sure that both sides of the surface are
clear of anything that could be damaged.
The basic light functions of the unit must be
controlled by a user supplied control head.
•
A light system is a high current device.
In order for it to function properly, a
separate ground connection must be
made. If practical, it should be connected
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.
•
Before proceeding, ensure that the light bar has
been installed on the vehicle roof in accordance with
the instructions packed with the mounting kit. Route
the light bar cable as described below.
WARNING
Light system controls must be located so that
VEHICLE and CONTROLS can be operated
safely under all driving conditions.
A. Route the control cable into the vehicle and
under the dash, near the eventual location of the
user-supplied control head.
Locate light system controls so the
VEHICLE and CONTROLS can be
operated safely under all driving
conditions.
•
You should frequently inspect the light
system 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 re-installing the product.
B. For proper light operation, the control cable
must be properly terminated inside the user supplied
control head. Using figure 1 as a guide, make the
appropriate electrical connections shown in Table 1.
Ensure that the lines are adequately fused as shown
in figure 1.
NOTE
Any of the light bar functions can be activated
by applying 12VDC to the appropriate control
line. The heavy black lead (-) must be connected to vehicle ground, to perform a function
check.
Failure to follow all safety precautions and
instructions may result in property damage, serious
injury, or death to you or others.
-1-
Figure 1. Wiring Diagram.
-2-
Table 1. Electrical Connections.
Wire Color
RED/WHT
BRN/WHT
BRN
BLU
ORN
YEL
GRN
GRY
RED
BLK
BLK/WHT
A. Cleaning the Plastic Domes.
Ordinary cleaning of the plastic domes can be
accomplished by using mild soap and a soft rag.
Should fine scratches or a haze appear on the domes,
they can ordinarily be removed with a mild, high
quality, automotive rubbing compound.
Functions
Rear Rotating Lights
Speaker
Speaker
Rear Amber (Flashing)
Left Alley
Front (Flashing), Takedown,
Strobe, Traffic Clearing Light
Right Alley
Takedown, Front (Flashing),
Strobe, Traffic Clearing Light
Front Rotating Lights
Power (-)
Takedown, Front (Flashing), Strobe
CAUTION
The use of other materials such as strong detergents, solvents, petroleum products, etc. can
cause crazing (cracking) of the plastic domes.
B. Lamp Replacement.
WARNING
A serious injury may result if lamp is touched
when hot. Always allow lamp to cool before
removing. Halogen lamps are pressurized and
if broken can result in flying glass. Always
wear gloves and eye protection when handling
the lamps.
NOTE
If front cut-off feature is
used, use DPDT (Center
Off) switch and wire as
shown. If front cut-off
feature is not used, use
SPST switch and connect
RED and RED/WHT cable
wires to same switch terminal as shown in figure 2.
CAUTION
Service life of lamp will be shortened if glass
portion is touched. If glass has been handled,
clean carefully with a grease solvent.
See figure 3. To replace the lamp, Twist to
unlock and then pull the defective lamp out of the
socket. Install a new lamp of the same type in the
socket.
WARNING
An indicator lamp must be
used with the front cut-off
feature to indicate that
front cut-off is being used.
Failure to do so may result
in property damage, serious injury, or death to you
or others.
C. Cleaning Reflectors and Mirrors.
Use a soft tissue to clean the reflector and
mirrors. Avoid heavy pressure and the use of caustic
or petroleum base solvents which will scratch or dull
the surface.
Figure 2. Switch Wiring.
C. Connect the black lead to chassis ground.
D. Connect the light bar's red power lead to a
fuse or circuit breaker rated at 50 amperes. Connect
the other side of the fuse /circuit breaker to the
+12VDC supply.
DO NOT TOUCH
THE GLASS PORTION
OF LAMP
III. BASIC MAINTENANCE.
LAMP
WARNING
High voltages are present inside the light bar,
when the strobe light option is installed. Wait
at least ten (10) minutes, after shutting off
power, before servicing this unit. Failure to do
so may result in property damage, serious
injury, or death to you or others.
SOCKET
290A2423
Figure 3. Lamp Replacement Diagram.
-3-
D. Strobe Power Supply Replacement.
5. Remove the driver, being careful not to
lose the two (2) washers.
WARNING
6. Remove the leads from the old driver and
connect to the new driver. 58-watt driver must be
unsoldered and then re-soldered.
High voltages are present inside the light bar,
when the strobe light option is installed. Wait
at least ten (10) minutes, after shutting off
power, before servicing this unit. Failure to do
so may result in property damage, serious
injury, or death to you or others.
7. Reinstall the driver. Ensure that washers
are installed correctly (see figure 4). Reconnect the
driver lead wires to the light assembly feed wires.
Secure connections with wirenuts.
The strobe light power supply does not
contain any user serviceable parts. Should a breakdown in the power supply occur, it should be returned to Federal for repair and replaced. To remove
the power supply, proceed as follows:
8. Reinstall cone. Ensure that washers are
installed correctly (see figure 4).
9. Replace grille and rear cover (removed in
step 1).
1. Unplug the connector from the power
supply.
IV. ALLEY LIGHT ADJUSTMENT.
2. Remove the two #10 screws which secure
the power supply.
The alley lights may be adjusted up to 7° toward
the front or rear. To adjust, loosen the center screw
and rotate the reflector and socket assembly to the
required angle. Tighten screw after completing
adjustment.
3. Install the new power supply by performing the previous steps in reverse order.
E. Speaker Driver and Cone Replacement.
To replace the speaker driver and cone, proceed as follows (see figure 4):
1. Remove the grille and rear cover from the
speaker housing.
2. Unscrew the cone, being careful not to
lose the five (5) washers.
3. Unscrew the wirenuts which connect the
driver lead wires to the light assembly feed wires.
4. Remove the two (each) 1/4-20 screws,
washers and lockwashers which secure the driver to
the housing.
Figure 4. Speaker Driver and Cone Replacement.
-4-
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