Whelen MJYAAAAP User Manual

®

ENGINEERING COMPANY INC.

51 Winthrop Road
Chester, Connecticut 06412-0684

Installation Guide:

Mini Justice® Lightbar

Phone: [phone]
Fax: [phone]
Internet: www.whelen.com
Sales e-mail: [e-mail]
Canadian Sales e-mail: [e-mail]
Customer Service e-mail: [e-mail]

Safety First

This document provides all the necessary information to allow your Whelen product to be properly and safely installed.
Before beginning the installation and/or operation of your new product, the installation technician and operator must
read this manual completely. Important information is contained herein that could prevent serious injury or damage.

• Proper installation of this product requires the installer to have a good understanding of automotive electronics,
systems and procedures.

• If mounting this product requires drilling holes, the installer MUST be sure that no vehicle components or other
vital parts could be damaged by the drilling process. Check both sides of the mounting surface before drilling
begins. Also de-burr any holes and remove any metal shards or remnants. Install grommets into all wire
passage holes.

• If this manual states that this product may be mounted with suction cups, magnets, tape or Velcro®, clean the
mounting surface with a 50/50 mix of isopropyl alcohol and water and dry thoroughly.

• Do not install this product or route any wires in the deployment area of your air bag. Equipment mounted or
located in the air bag deployment area will damage or reduce the effectiveness of the air bag, or become a
projectile that could cause serious personal injury or death. Refer to your vehicle owner’s manual for the air bag
deployment area. The User/Installer assumes full responsibility to determine proper mounting location, based
on providing ultimate safety to all passengers inside the vehicle.

• For this product to operate at optimum efficiency, a good electrical connection to chassis ground must be
made. The recommended procedure requires the product ground wire to be connected directly to the NEGATIVE
(-) battery post.

• If this product uses a remote device to activate or control this product, make sure that this control is located in
an area that allows both the vehicle and the control to be operated safely in any driving condition.

• Do not attempt to activate or control this device in a hazardous driving situation.

• This product contains either strobe light(s), halogen light(s), high-intensity LEDs or a combination of these
lights. Do not stare directly into these lights. Momentary blindness and/or eye damage could result.

• Use only soap and water to clean the outer lens. Use of other chemicals could result in premature lens cracking
(crazing) and discoloration. Lenses in this condition have significantly reduced effectiveness and should be
replaced immediately. Inspect and operate this product regularly to confirm its proper operation and mounting
condition. Do not use a pressure washer to clean this product.

• It is recommended that these instructions be stored in a safe place and referred to when performing
maintenance and/or reinstallation of this product.

• FAILURE TO FOLLOW THESE SAFETY PRECAUTIONS AND INSTRUCTIONS COULD RESULT IN DAMAGE TO
THE PRODUCT OR VEHICLE AND/OR SERIOUS INJURY TO YOU AND YOUR PASSENGERS!

Automotive: Lightbars

For warranty information regarding this product, visit www.whelen.com/warranty

©2008 Whelen Engineering Company Inc.
Form No.14202C (052010)

Page 1

IMPORTANT! The lightbar should be a minimum of 16” from any
radio antennas!

Permanent Mounting:

1. Locate the mounting foot and mounting plate included with your lightbar. If not
already present, install the plate onto the mounting foot. When properly
positioned, this plate is centered from side to side on the mounting foot.

2. Flip the lightbar upside-down to expose the bottom of the extrusion and place
the mounting foot onto the extrusion.

3. Rotate the mounting foot 90° counter-clockwise. Make sure that the edges of
the mounting foot swing into position under the extrusion mounting lip.

4. Repeat this procedure for the remaining mounting foot and return the lightbar
to its right side-up position.

5. Position the lightbar onto the vehicle roof in the desired mounting location.
One often selected location is directly above the B-pillars. This area is the
strongest part of the roof. Refer to your lightbar manual for your lightbars
cable exit location, to be sure that the lightbar is facing the proper direction.

6. Adjust the two mounting feet outwards so that they are as close to the edge of
the roof as possible. Make sure that both mounting feet are in full contact with
the roof. Be sure that there is no less than 1/2” clearance between the roof
and the lightbar at their closest point. When the mounting feet are in their
proper position, lightly tighten the mounting foot allen head set screws.

7. Turn the lightbar upside down and firmly tighten all of the set screws from step
6 (2 or 4 per side).

8. Note that on the adjustable foot, use the hole in the pad as a guide to drill the two holes into
the mounting foot at the locations shown.

9. Place the lightbar in its final mounting position on the vehicle, mark the mounting hole
locations off onto the mounting surface, remove the lightbar and drill the mounting holes.

10. Place the lightbar back onto the vehicle lined up with the mounting holes and secure the
mounting feet to the vehicle using the supplied hardware.

Standard
Mounting
Foot

Mounting
Plate

Nut

Washer

Mounting

BoltBolt

Pad

Tighten

with torque wrench

Mounting

screws

set at 35

to 40 in/lbs

Pad

Washer

Nut

Adjustable
Mounting
Foot

Mounting
Plate

ANCHOR
PLATE

Twist foot into
position

Insert foot into extrusion
with locking plate
attached.

Slide Bolt Mounting (Permanent):

1. Position the slide bolt mounting plates onto
the bottom of the lightbar extrusion. These
plates rotate into position the same way as
the mounting foot. Position the plates as far
outward as possible (if a 3rd mounting plate is
used, it should be positioned under the center
of the lightbar).

1. Secure the plates to the extrusion using the
set screws provided.

2. Position the lightbar onto the vehicle and
mark the mounting bolt locations. Drill the
necessary mounting holes using an
appropriately sized drill bit sized for a 1/2”
bolt.

loosely secure foot and locking plate.

NOTE: Model MKAJ is an adjustable mounting foot.
On this model you may loosen the screws on the rear
of the foot and adjust the angle of the lightbar. This
feature can be used if the angle of the roof is not level
with the road.

IMPORTANT: To tighten the leveling screws you must
use a torque wrench set at 35 to 40 ft. lbs.

Temporary Mount (Magnetic, Suction Cup):

WARNING: The use of any magnetically mounted
warning device on the outside of a vehicle in motion is
not recommended and is at the sole risk and responsi­bility of the user.

Magnetic/suction: Thoroughly clean the mounting sur-

face prior to mounting. For suction cup mounting, wipe the
suction cup clean, place the beacon onto the mounting
surface and apply gentle pressure to ensure a good seal
has been achieved. The Magnetic/Suction Cups mount the
same as standard suction cups but are best suited to a flat,
steel surface.
Magnetic: Place the lightbar onto the mounting surface
and plug it into the vehicle cigar lighter.

Cable Access Hole

FRONT

Drill the cable access hole in the
appropriate area for your lightbar.

Cable exit

Page 2