Whelen 9M144000 - Manual (Page 5)

Page 5
A B AUX
Power Distribution Board
HALOGEN
FLASHER
A
HALOGEN
FLASHER
B
POS.4 POS.4
PS:A
PS:B
PS:C
Changing Flash Patterns Without a Scan-Lock™ Cable:
The 9M lightbar is capable of displaying a variety of flash patterns. These patterns can be changed using one of two methods. The first is through the optional Scan-Lock™
pattern cable. This allows you to change patterns from within the vehicle and is preferred by customers who want to be able to easily change their flash patterns if need arises.
For users who rarely or infrequently change patterns and do not require a Scan-Lock cable, you must partially disassemble the lightbar and change patterns manually.
WARNING: The strobe light power supply is a high voltage device. Do not remove strobe tubes or dismantle strobe light head assemblies in the system while it is in
operation. Wait 10 minutes after turning off power before starting work or any trouble shooting.
WARNING! THIS PROCEDURE REQUIRES THE LIGHTBAR TO BE ACTIVE WHILE IN A PARTIALLY DISASSEMBLED STATE. DO NOT TOUCH ANY LIGHTBAR
COMPONENTS EXCEPT FOR THOSE REFERENCED IN THIS PROCEDURE.
1. Notice where the cable enters the bottom of the extrusion. If it enters on the driver side, the Power Distribution Board will facethe rear of the vehicle. If it enters on the
passenger side, it will be facing the front of the vehicle.
2. Remove the endcap nearest to the cable entry. On the appropriate side (front or rear) of the lightbar, remove lenses and move lightheads away from the extrusion until
clear access to the Power Distribution Board has been gained. Be sure to record the exact position of each component to ensure proper re-assembly.
3. Changing Strobe Lighthead Patterns - Locate the 3-position connector. Each of the 3 sockets control pattern selection for each of the lightbar’s 3 strobe power supplies
(PS:A, PS:B and PS:C). In the default configuration, the corner strobes use PS: A, the inboard strobes use PS: B and the end strobes use PS: C. Activate the strobe lights
that are to receive the new flash pattern. Momentarily applying +12VDC to the appropriate socket will cycle that power supply’s current flash pattern to the next flash
pattern. Repeat this procedure until the desired pattern is displayed. Allowing this pattern to flash for a minimum of 5 seconds will make this pattern the default pattern.
4. Changing Halogen Lighthead Patterns - Locate the 4-position connector on the appropriate halogen flasher (A or B). The socket located in position 4 controls pattern
selection for the halogen lightheads
connected to that flasher. Momentarily
applying +12VDC to this socket will
cycle that halogen flasher’s current
flash pattern to the next one. Repeat
this procedure until the desired pattern
is displayed. Allowing this pattern to
flash for a minimum of 5 seconds will
make this pattern the default pattern.
Restoring the Factory Default
Pattern - To restore the factory default
flash pattern, make sure that the
lightheads to be restored are off. For strobe lightheads, apply +12VDC to the appropriate socket (see strobe lighthead procedure above) while powering up the
corresponding lightheads. Allow pattern to be displayed for a minimum of 5 seconds to make this the default pattern.
For halogen lightheads, use the same procedure as outlined for strobe lightheads, substituting the halogen selection socket(s) where the strobe socket is referenced.
Before working on your strobe lights, disconnect the lightbar from power and remove the endcap. WARNING: The strobe
light power supply is a high voltage device. Do not remove the strobe tubes or dismantle the strobe lightheads in
the system while the unit is in operation. Wait 10 minutes after turning off power before working on the system. To
remove the lighthead, unsnap it from the mounting bracket, unplug it, and slide it out of the side of the lightbar base. If you
are replacing the lighthead, snap off the bottom bead on the new lighthead as shown. Plug the new lighthead int the lightbar,
.
Installing a Corner Strobe
REAR OF LIGHTBAR
(Drivers Side - Top View)
CENTER OF LIGHTBAR
CORNER
STROBE
TAB
POWER SUPPLY Ears on lighthead bracket
slide inton channels in
extrusion (base).
Mounting Lightheads to Extrusion
BASE
EXTRUSION
LIG
HTH
EAD
Halogen Lighthead
snaps into extrusion
BARB
BOSS Align the lighthead reflector with the
4 bosses in the endcap. Press the
reflector into place.
Remove the screws (A) that hold the endcap on and pull the endcap
and gasket (C) off.
4 (B)
Slide lenses (D) out of the lightbar, to gain access to
the extrusion. When reinstalling the lenses and spacers, install the cord
seal (NFPA ). When reinstalling the endcap, place the endcap gasket into
it's position on the endcap and line up all the tabs and holes. Spacers
( n o t s h o w n ) m o u n t t h e s a m e a s l e n s e s .
Lighthead mounting holes
snap into the raised bosses
on the lighthead bracket.
Snap lighthead
into bracket.
Endcap, Gasket , Lens & Spacer Installation
D
D
C
Insert
cord
seal
into
track
in
lens
A
B
Seal Cord Installation / NFPA Only:
Cut the seal cord approx. 1-1/2" longer than the extrusion on each side.
Rub silicone over the cord seal leaving 3 to 4 inches on one end dry.
Begining with 1 corner lens, start the lens into the bottom
lens track. Place the cord seal onto the groove in the
top of the lens eav 1 to 2 inches
Hold onto the left end of the seal hanging
out and slide the corner lens into
position.
1 -
2 -
3 -
4 -
3 -
3 -
4 -
4 -
. L e free.
Inspect seal cord for any areas that have wrinkled.
Especially in the areas around the dividers.
Push the lenses together tight and trim excess seal
cord at each end.
6 -
7 -
6 -
7 -
From the opposite end of the
lightbar, pull the seal
cord tight and install
the remaining lenses
and divider.
5 -
5 -
5 -
5 -
5 -
NOTE: Lens dividers must
be installed as each lens is
put into position
Snap off bottom
bead of reflector
Tabs slide
into base
END
VIEW
OF
BASE
Slide Spacer in here
Snap lighthead
into bracket
slide it into the base and snap it into the mounting bracket.