Federal Signal Corporation QL64MHL User manual

2562293A
REV. A 906
Printed in U.S.A.
INSTRUCTION SHEET
FOR MODEL QL64MHL
ADAPTOR PLATE FOR 6 X 4 QUADRAFLARE™ FLUSH MOUNT LIGHTS
SAFETY MESSAGE TO INSTALLERS
OF
FEDERAL SIGNAL LIGHT SYSTEMS
People’s lives depend on your safe instal-
lation of our products. It is important to
read, understand and follow all instruc-
tions shipped with the products. In addi-
tion, 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 .
• When drilling into a vehicle structure,
be sure that both sides of the surface
are clear of anything that could be
damaged.
• You should frequently inspect the light
system to ensure that it is operating
properly and that it is securely at-
tached to the vehicle.
• A light system is a high current device.
In order for it to function properly, a
separate ground connection must be
made. If practical, it should be connect-
ed to the negative battery terminal.
At a minimum, it 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 op-
erated safely under all driving condi-
tions.
• This product contains high intensity
LED devices. To prevent eye damage,
DO NOT stare into the light beam at
close range.
• 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 in jury, or death to you or others.
A. GENERAL.
Federal’s Model QL64MHL adaptor plate is
designed to install Model QL64 flush mount light
assembly in K-D lamp Company and/or Advance
Technology headlight bezels. The Model QL64MHL is
supplied with a stainless steel mounting plate and all
necessary mounting hardware.
Before installation, ensure that the parts shown in
the KIT CONTENTS LIST are included.
KIT CONTENTS LIST
Qty. Description Part Number
1 Adaptor Plate 8575433
2 Spacer, 1/2” Round, Alum. 230317
2 Spacer, 1/2” Round, Alum. 230317-01
4 Spacer, 3/8” Round, Nylon 230318
2 1/4-20 Screw, S.S. Phil. Pan Hd. 7000537-20
4 Screw, Phil. Pan Hd., #6 7011205-16
8 Grommet, Nut, Nylon 7065075
1 Grommet, Rubber 8108A014
B. INSTALLATION.
1. Select the headlamp bezel cavity where the
QL64 light assembly will be installed. See figure 1.
Remove and retain the six screws that secure the
headlight bezel in position and remove the headlight
bezel.
290A5629
HEADLIGHT
BEZEL
HEADLIGHT
BEZEL SCREWS (6)
Figure 1.

2. Remove the two screws and the spring which
secure the selected headlamp and bracket to the rear
housing.
3. Remove the headlamp and bracket from the
rear housing and disconnect the wiring. Note that the
original headlamp wiring will not be used.
Avoid damage to brake lines, electrical wiring,
and other vital parts. When drilling or cutting
on ANY part of the vehicle, ensure that both
sides of the surface are clear of parts that could
be damaged .
4. Drill a 25/64” hole in the rear housing for the
rubber grommet. Install the rubber grommet and route
the 18GA (minimum) user-supplied wiring through the
opening.
5. See figure 2. Install the QL64MHL plate on the
light bezel using the two 1/4-20 x 1-1/4” screws and 4
aluminum spacers as shown.
290A5630
SCREW #6,
PHIL 1.0"
TRIM RING
(CUSTOMER SUPPLIED)
PLASTIC
SPACER 3/8"
SCREW #6 PHIL 1.5"
QL64
QUADRAFLARE
1/4-20 SCREW
PHIL, 1.25"
PLASTIC SCREW
GROMMET
ADAPTOR PLATE
ALUM.
SPACER 7/16"
ALUM.
SPACER 1/8"
Figure 2.
6. Terminate the QL64 light wires using
appropriate user-supplied connectors.
7. See figure 2. Install the QL64 light on the
QL64MHL adaptor plate using the four 1-1/2” s.s.
screws (supplied with the QL64) and four nylon nut
grommets.
8. Secure the headlight trim ring to the QL64MHL
adaptor plate using four 1” s.s. screws, four nylon
spacers, and four nylon nut grommets as shown in
figure 2.
9. See figure 1. Secure the headlight bezel and
rear housing using the four remaining screws.
If wires are shorted to the vehicle frame
or each other, high current conductors can
cause hazardous sparks resulting in elec-
trical fires and molten metal.
Verify that no short circuits exist before
connecting to the Positive (+) battery ter-
minal.
DO NOT connect this system to the vehicle
battery until ALL other electrical connec-
tions are made and mounting of all compo-
nents is complete.
Failure to observe this WARNING will re-
sult in fire, burns and blindness.
Copyright 2006 Federal Signal Corporation
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