Watchman 7820-A User manual

WOLO WATCHMAN MODELS - PAGE 1
Your purchase of a Wolo warning light is the perfect choice to compliment your vehicle. Wolo’s warning lights are
manufactured with the nest materials. Before being packaged, each light is tested to meet our high standards
and ensure a perfect working light. Our quality workmanship and components are Wolo’s assurance that this
product will provide years of dependable service. If you need help or have any questions using your new Wolo
warning lights, our technicians are available to answer your questions, Monday thru Friday, from 9 AM to 4 PM
EST at 888-550-4676.
Before installation of the light bar is attempted, it is important to read these instructions completely. The lives of
people are dependent on a proper installation of the light bar to the vehicle. The person installing this light bar
must have advanced knowledge of the proper method for mounting and securing the light bar to a vehicle’s roof
or exterior, as well as knowledge of the vehicle’s electrical system. Again, read this manual completely and note
any messages marked “IMPORTANT” or “WARNING’’. A safe installation will prevent serious injury or damage
to the vehicle.
WATCHMAN comes completely wired and does not require any internal wiring by the installer. The power
cable has all the required wires with factory installed terminals and connectors for a successful installation.
Installation of the WATCHMAN Light Bar requires drilling into the vehicle. The installer must carefully inspect
both sides of the selected locations to ensure that there are no components, wires and/or any other vehicle part
that could be damaged by drilling. IMPORTANT: Always de-burr any drilled holes, ensuring that there are no
sharp edges. Install a rubber grommet into all metal holes that the wires are being routed through.
Always refer to the vehicle’s shop manual for deployment location of air bags. Never install the light bar’s switch
control panel, wires and or components in the deployment area of any air bag. Improper installation could reduce
the effectiveness of the vehicle’s air bag system and or project an object that could cause serious personal injury
or death to driver and passenger. The user/installer assumes all responsibility to properly access a safe mounting
location of the light bar’s control panel, to provide ultimate safety to the driver and passengers inside the vehicle.
The vehicle operator and or maintenance department should inspect the light bar frequently to ensure all
brackets are securely attached to the vehicle and that all mounting hardware is free of corrosion.
The light bar’s control panel should be mounted in a location where the switches can be easily reached. Never
attempt to turn light bar on/off when driving under hazardous conditions.
These installation instructions should always be kept and stored in a safe location so that they can be referred
to when information, maintenance or reinstallation is required.
Failure to follow all safety precautions and installation procedures outlined in these instructions could result in
property damage to the vehicle, serious injury or death to you or others.
MOUNTING LIGHT BAR
1. Position and secure the mounting brackets to the bottom of the light bar using the
hardware pre-installed to the aluminum base plate. Do not fully tightened the nuts
because the brackets need to be positioned in step number 7. See Fig. 1.
2. Place the light bar on the selected location of the vehicle’s roof. A preferred
mounting position on the roof is close to the B-pillar, which is the strongest part
of the roof. IMPORTANT: Make sure the light bar is facing the correct direction.
NOTE: there is a label on the light’s front lens indicating the take down lights.
3. Make sure the selected
location of the light bar
will allow the stainless-
steel straps to attach to
the vehicle window ledge
on both the driver’s and
passenger sides. See Fig. 2.
Fig. 1
Front View
Fig. 2
Models 7820-A, 7825-B, 7830-R & 7835-BR
LED LIGHT BAR INSTALLATION MANUAL
TM

WOLO WATCHMAN MODELS - PAGE 2
4. Drill an 11/16“ hole into the roof, which will be the access point to route the cables into the interior of
the vehicle (when at step number 13). Mark the desired hole location; remove the light bar from the roof
and drill the hole. The installer must lower the headliner to carefully inspect selected location to ensure
that there are no components, wires and or any other vehicle part that could be damaged before drilling.
WARNING: The roof has support members that span across from the driver’s and passenger side of the
vehicle. NEVER drill into a support member! It will be necessary to relocate cable’s access hole to not
come into contact with support member.
5. IMPORTANT: Protect the vehicle’s interior headliner from damage that could be caused when drilling the
access hole for the light bar’s power cable. Always allow a minimum distance of 6“ to 8” between the roof
and headliner by lowering the headliner before drilling the access hole.
6. IMPORTANT: Always de-burr the access hole by using a round le to ensure there
are no sharp edges. NOTE: The light bar’s power cable has a rubber grommet in
place that will be inserted the access hole after the cable is routed into the vehicle
(when at step number 15). See Fig. 3.
7. Position the light bar back onto the roof of the vehicle. There are two adjustable
brackets located on the bottom of the light bar. The installer will need to adjust
the location of the two brackets, each having two- (2) rubber pads, to be close
to the edge of the roof. IMPORTANT: Always make sure that each of the
protective rubber pads are in full contact with the roof. To adjust each bracket,
loosen the four 5/16” bolts, slide the bracket into position, and tighten the bolts
securely. Repeat the same procedure for the bracket on the other end of the
light bar. See Fig. 4.
8. Open the vehicle’s door and determine the location that the stainless-steel strap
will clamp to the windows ledge. You may need to move the rubber weather-
strip away from the vehicle. Only remove enough weather-strip so that the
area where the stainless-steel strap will be secured to the vehicle is exposed.
Repeat the procedure for other side of vehicle.
9. Remove the protective lm covering the stainless-steel straps. Place one of the stainless-steel straps
into position on the window ledge so the installer can determine which holes in the stainless-steel strap
is best positioned to attach the “L” bracket using the bolts, washers and nuts provided. Insert the tension
adjustment bolt through the strap’s “L” bracket and thread bolt into the light bar’s bracket, hand tighten.
IMPORTANT: The “L” bracket can be repositioned for proper installation by simply removing the bolt
securing it to the stainless-steel strap. Reposition and secure the “L” bracket in preferred location using
the bolt, lock washer and nut. Repeat the procedure for other side of vehicle. WARNING: The two- (2)
stainless-steel straps included with the light bar are universal
and should securely install to the window ledge of most
vehicles. Some vehicles may require a custom designed
strap to properly secure the light bar to the vehicle’s window
ledge. Always make sure that both straps have a full hold on
the vehicles window ledge.
10. Tighten the two- (2) tension adjustment bolts evenly. While
tightening the bolts make sure the light bar remains in the
desired mounting position on the roof. Torque bolts to 10-
12 ft.-lbs. Failure to properly tighten the tension adjustment
bolts and straps could result in damage to the vehicle and
injury or death to the driver or others. IMPORTANT: Always inspect to make sure that
both straps have a full hold on the vehicles window ledge and the tension bolts are
torqued correctly. See Fig. 5.
11. The hooked end of the stainless-steel strap that is engaged to the vehicle’s window
ledge has two holes, which will secure the bracket to the vehicle with the sheet metal
screws provided. Use each of the holes in the bracket as a template mark and drill the required holes into
the window ledge, drill to size 5/32”. Secure the stainless-steel strap to the window ledge with the sheet
metal screws. IMPORTANT: The installer may have to lower headliner and inspect the selected location
to ensure that there are no components, wires and or any other vehicle part that could be damaged by
drilling. See Fig. 5.
Fig. 4
RUBBER
GROMMET
Fig. 5
Fig. 3

WOLO WATCHMAN MODELS - PAGE 3
12. Place the weather-stripping back into position.
13. Insert the cables and the red and black wires into the access hole
that was drilled into the roof earlier. Route the cables into the B-pillar.
14. The power cable will make an approximate 90° bend into the B-pillar.
Depending on the vehicle, this can sometimes be difcult, but it is
the recommended procedure for proper installation. Installation will
vary for each make and model vehicle and it is up to the installation
technician’s discretion whether to route the power cable as
recommend through the B-pillar or use an alternative routing method.
Route cables down to the bottom of the B-pillar and the pull the full
length of both cables into the interior of the vehicle. See Fig. 6.
15. The rubber grommet that is attached to the power cable, is inserted
into the access hole. See Fig. 2 and Fig. 3.
16. Make sure that the light’s cable has been completely pulled into the vehicle, use silicon or similar
waterproof material around the grommet and cables to ensure a waterproof installation.
MOUNTING SWITCH CONTROL PANEL See Fig. 7
The light bar’s switch control panel needs to be mounted in a
location that can easily be reached.
IMPORTANT: Do not connect the power plug to the switch
controller until all mounting and wiring has been completed and
a safety check has been completed. WARNING: If the vehicle is
equipped with air bags, the installer MUST consult the vehicle’s
shop or build manual to ensure that light’s switch controller and
wires that will be connected to the switch controller, will not affect
deployment of air bags. This switch controller must be installed only
in a location recommended by vehicle manufacturer. If necessary,
consult manufacturer for their recommendation. Failure to adhere to
this warning could result in damage to the air bag and or reduce the
effectiveness of the air bag, which could result in bodily injury, or
death to you or others.
CAUTION
• Before drilling any surface for mounting of the switch controller or for routing wires, carefully inspect the
desired location to ensure that there are no components, wires and or any other vehicle part that could be
damaged by drilling.
• The switch controller should not be mounted close to the vehicle’s heater duct.
17. Remove the controller from the mounting bracket by removing the thumb screws on each side. Use the
bracket as a template to mark the location of the mounting holes.
18. Drill four-(4) holes on the marked locations using a 5/32” drill bit.
19. Secure the swing-mounting bracket to the desired location using the sheet metal screws provided.
See Fig. 7.
20. Reposition the switch controller back into the swing bracket, you can tilt and position the controller so that
it is easily reachable by user. Tighten the two thumb screws that secure the switch controller to the swing
bracket. See Fig. 7.
WIRING POWER CABLE See Fig. 8
Cable that has two wires (red and black)
21. WARNING: Failure to wire the light bar correctly could result in permanent damage to the light bar, the
vehicle’s electrical system and/or cause a re. If any switch, fuse or wire is replaced, they must meet or
exceed specications rating specied in this manual. Any deviation to the electrical specications are at
the installer’s/user’s risk. IMPORTANT: Disconnect the vehicles battery before beginning any wiring.
Fig. 7
Mounting Bracket
Thumb
Screw
Thumb
Screw
Fig. 6
B-PILLAR
POWER CABLE
and RED / BLACK
WIRES EXIT

WOLO WATCHMAN MODELS - PAGE 4
IMPORTANT: The RED wire must be
connected to the 15amp inline fuse
(included with light bar) at the point
of the 12-volt connection such as
the fuse block, the vehicle’s battery
or any 12-volt power source which
is rated by vehicle’s manufacturer
capable of handling 15-amps. The
fuse should never be more than ten
(10) inches from the power source.
If either the red or black wires need
to be lengthened use 16 gauge or
heaver wire. The light bar is a low
current device, to operate this product
at peak performance make sure all connections are clean of paint, rust and corrosion and rmly secured.
22. RED & BLACK WIRES: ROUTE the wires to the vehicles fuse block, accessory source or battery. If the
power wires pass through any drilled holes or rewall, always use a rubber grommet to protect the wire
cables.
23. BLACK WIRE: Connect to ground by securing wire under any metal body bolt or the negative (-) battery
post. Make sure that the METAL surface around the bolt that secures the wire is clean of rust, oxidation
and paint to make a good electrical connection. See Fig. 7.
24. RED WIRE: Connect to positive (+) 12-volts such as the fuse block, accessory power source in the
dashboard area or the positive (+) battery post. Always use the fuse holder provided with the 15-amp fuse.
Make sure the connection is at a location free from corrosion or oxidation. See Fig. 8.
25. To prevent shorts, make sure all wire connections are properly insulated.
26. Make sure all wires are securely fastened to vehicle using plastic wire ties
or electrical tape (not provided). WARNING: Carefully inspect the interior
driver’s area to make sure the light bar wires or the vehicle’s electrical
system wires are not interfering with the operation of vehicle’s controls;
accelerator, brake, clutch pedals and etc.
27. The cable’s white plug is connected to its mate located on the back of the
switch controller. The plug is designed to connect only in one position.
NOTE: The plugs locking tab is inserted facing downward. See Fig. 9.
OPERATING LIGHT BAR
POWER SWITCH: Turns power on/off. There is a power indicator light above the switch that will illuminate
when power to the light bar is turned on.
FRONT LIGHT: Turns on/off the LEDs facing outward from the front of the light bar. Press and release front
light switch and the light pattern will change: STEADY ➜ ALTERNATING ➜ SYNCHRONOUS ➜ OFF
REAR LIGHT: Turns on/off the LEDs facing outward from the rear of the light bar. Press and release rear light
switch and the light pattern will change: STEADY ➜ ALTERNATING ➜ SYNCHRONOUS ➜ OFF
ALLEY LIGHT: Turns on/off the clear LED alley lights left & right sides of the light bar. Press and release the
alley light switch and the light pattern will change: STEADY ➜ ALTERNATING ➜ SYNCHRONOUS ➜ OFF
TAKE DOWN LIGHT: Turns on/off the clear LEDs in the front of the light bar. Press and release the alley light
switch and the light pattern will change: STEADY ➜ ALTERNATING ➜ SYNCHRONOUS ➜ OFF
FLASH PATTERN: Changes the ash pattern of the light bar.
TRAFFIC ADVISOR: Turns on/off LEDs facing outward from the rear of the light bar. Press and release the
trafc advisor switch to select from three (3) different light patterns: Left to right ➜ middle to sides ➜ right to
left ➜ off. When the trafc advisory is turned off the rear facing LEDs will ash in sequence with the main ash
pattern in use.
Fig. 8
Fig. 9
➜

WOLO WATCHMAN MODELS - PAGE 5
SPECIFICATIONS
Dimensions: L 47 in. x W 4-5/8 in. x H 3-3/4 in.
Voltage: 10.8 ~ 13.8-VDC
Peak Current: all LEDs powered on 4.04 -amps / warning light only powered on 2.80-amps
LED Type: Linear with magnifying lens, each module contains 6 x 1.5-watt LEDs
102 / 1.5-watt 153 total watts
All models have clear lens throughout; color is produced by LEDs
Light Patterns: 19 selectable
Alley Lights: 3 white 1.5 -watt LEDs on left & right sides
Take Down Lights: 2 white LED modules 12 / 1.5-watt LEDs
Trafc Advisory: 3 selectable amber patterns, back of light
Cable Length: 20 ft.
Mounting: Adjustable universal mounting system including stainless steel straps for window ledge mounting.
Switch Controller: Has LED ash pattern indicator, 7 push button switches and a adjustable mounting bracket.
CLEANING LENS
A scratched, dull or dirty lens can cause a reduction in brightness of a warning light. Never use a caustic or
petroleum based cleaner on any surface of the warning light. For best cleaning results, always use household
glass cleaner or mild soap with a soft lint free rag. If the lens has scratches, or is dull, it is recommended those
components be replaced to ensure maximum brightness of the warning light.
WARRANTY
Wolo Manufacturing Corporation (“Wolo”) warranties to the original purchaser, for twelve months from the date of
purchase, that this product is free from defects in workmanship and materials. If there is such a proven defect, Wolo,
at its option, will either repair or replace the item free of charge, if it is returned to Wolo within twelve months from the
date of purchase together with proof of purchase as described below. Wolo reserves the right to inspect any defect prior
to settling any warranty claim by repair or replacement. This warranty is limited as above provided and Wolo will not be
responsible for re or other casualty or accident, due to neglect, abuse, abnormal use, modications, faulty installation
of this product, or natural causes.
ANY EXPRESSED WARRANTY NOT PROVIDED HEREIN IS EXCLUDED AND DISCLAIMED. THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY LIMITED
TO A TERM OF TWELVE (12) MONTHS. UNDER NO CIRCUMSTANCES SHALL WOLO BE LIABLE TO PURCHASER OR
ANY OTHER PERSON FOR ANY SPECIAL OR CONSEQUENTIAL DAMAGES, WHETHER ARISING OUT OF BREACH
OF WARRANTY OR OTHERWISE.
To obtain warranty service, return the product prepaid, and include the original bill of sale showing the date of purchase.
Provide with the return a brief description of the problem. Also, include with the return a check or money order in the
amount of $25.00 to cover return shipping.
Ship to:
Wolo Manufacturing Corp.
One Saxwood Street, Deer Park, NY 11729
Attn: Warranty Service
E-mail: [email protected]
© 2017 Wolo Mfg. Corp.
All Rights Reserved