-4-
3.
Repeat the above steps for the other
side facing reflector/flash tube assembly.
C.
Function Activation.
1.
Standard (Quadruple Flashing) Mode.
The standard mode in four head and
six head models is activated by applying 12VDC to
the control cable’s heavy red wire. Activate the
standard mode in ten head models by applying
12VDC to the control cable’s heavy red wire and to
the red/white wire.
2.
No-Dark Time Action Mode.
NOTE
Available ONLY in ten head models (SJ3P
and SJL3P).
Activate the standard mode (described
above), and apply 12VDC to the control cable’s blue
wire.
3.
Front Cutoff.
Front cutoff in four and six head
models is activated by applying 12VDC to the control
cable’s red/white wire.
Front cutoff in ten head models is
accomplished by disconnecting the 12VDC to the
control cable’s red/white wire. Standard or action
front cutoff modes are obtained depending on the
voltage applied to the control cable’s blue wire.
4.
Low Intensity Double Flash Mode.
Activate the standard, action, or front
cutoff mode (described above), and apply 12VDC to
the control cable’s yellow wire.
5.
Front Only Mode.
Front only mode (available only in ten
head models) is activated by simultaneously applying
12VDC to the power cable red/white wire and discon-
necting 12VDC from the red wire. Standard, action,
or low intensity modes are obtained depending on the
voltage applied to the blue and yellow wires.
IV.
BASIC MAINTENANCE.
WARNING
High voltages are present inside the lightbar.
Wait at least ten (10) minutes, after shutting
off power, before servicing this unit. Failure
to do so may result in property damage, seri-
ous injury, or death to you or others.
Disconnect ALL power to the lightbar before
any maintenance is performed.
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 non-abrasive,
high quality automotive paste wax.
WARNING
Crazing (cracking) of domes will cause reduced
effectiveness of light system. Do not use clean-
ing agents (which will cause crazing) such as
strong detergents, solvents, or petroleum prod-
ucts. If crazing of domes does occur, reliability
of light for emergency warning purposes may
be reduced until domes are replaced.
B.
Halogen 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.
CAUTION
Service life of lamp will be shortened if glass
portion is touched. If glass has been handled,
clean carefully with a grease solvent.
Replace 50-watt halogen lamps with
Federal Part Number 8107A119 and 35-watt with
8548A028.
Figure 5. JSFEI Installation.
SIDE FACING REFLECTOR ASSEMBLY
NOTCHED
CORNERS
INSERT
CLIP(2)
MODEL JSFEI-A
(AMBER) STROBE
INSERT(ORDER
SEPERATELY, AND
SPECIFY COLOR REQUIRED.)
290A2749
NOTE: NOTCHED CORNERS FACE TOWARD FRONT OF LIGHTBAR
#4-40 THD.
FRM. SCREW
(2)
