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256843D

REV.  D  1296

Printed in U.S.A.

WIRING AND MAINTENANCE INSTRUCTIONS

FOR

MODEL AD SERIES AND ADL SERIES INDEPENDENT ROTATOR LIGHT ASSEMBLIES

SAFETY MESSAGE TO INSTALLERS

OF

FEDERAL SIGNAL LIGHT SYSTEMS

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:

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 equip-

ment.

When drilling into a vehicle structure, be
sure that both sides of the surface are
clear of anything that could be damaged.

A light system is a high current device. In
order for it to function properly, separate
ground (-) and positive (+) connections
must be made. If practical, they should be
connected to the battery terminals. A
suitable fuse should be installed as close
to the battery as practical. At a minimum,
the ground connection 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.

Locate light system controls so the
VEHICLE and CONTROLS can be
operated safely under all driving condi-
tions.

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
reinstalling the product.

Failure to follow all safety precautions and

instructions may result in property damage, serious
injury, or death to you or others.

A. UNPACKING.

After unpacking the 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 remov-
ing or destroying them.

B. INSTALLATION.

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.

The basic light functions of the unit must be

controlled by a user-supplied control head.

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

Ensure that light system controls have been
located so that VEHICLE and CONTROLS
can be operated safely under all driving
conditions.

1.

Route the control cable into the vehicle and

under the dash, near the eventual location of the
user-supplied control head.

2.

For proper operation, the control cable must

be properly terminated inside the user-supplied
control head. Use figure 1 as a guide and make the
appropriate electrical connections shown in table 1 or
2, as applicable. 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. To perform a function check, the heavy
black lead (-) must be connected to vehicle
ground.

3.

Connect the black lead (-) to chassis ground.

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