Whelen M4FC400 User Manual

®

ENGINEERING COMPANY INC.

51 Winthrop Road,

Chester, Connecticut 06412-0684

Phone: [phone]

Fax: [phone]

Installation:

1. Remove the existing 400 series lighthead and gasket from the mounting surface.

2. Mark the M4 flange mounting hole locations onto the
mounting surface either by using the flange as a
template or the measurements shown.

3. Drill four 1/4 inch mounting holes and insert the
four supplied #8 round hole grommets.

4. Insert the two #8 square grommets

into the flange and secure the
lighthead to the flange with
two #8 X 1” sheet metal
screws.

Round Hole
Grommets

M4
Flange

Installation Guide:

400 Series to M4 Series Flange Adapter

Model M4FC400

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

NOTE: Due to the mounting hole locations
for the M Series and the variety of lighthead
styles which may be replaced, cutting or
drilling may be required for the screws

Mounting
Gasket

going into the square grommets.

5. Secure the Flange and lighthead to the vehicle
with the 4 supplied #8 X 1” sheet metal screws
and round grommets you installed in step 3.

6. Extend the wires to your power source and
connect as shown in the lighthead manual

4.874"

M4 Mounting Configuration

2.686"

#8 X 1 PPHSMS

Automotive: Lightheads

©2009 Whelen Engineering Company Inc.
Form No.14339 (080409)

ENGINEERING COMPANY INC.

51 Winthrop Road,

Chester, Connecticut 06412-0684

Phone: [phone]

Fax: [phone]

Installation:

1. Remove the existing 400 series lighthead and gasket from the mounting surface.

2. Mark the M4 flange mounting hole locations onto the
mounting surface either by using the flange as a
template or the measurements shown.

3. Drill four 1/4 inch mounting holes and insert the
four supplied #8 round hole grommets.

4. Insert the two #8 square grommets

into the flange and secure the
lighthead to the flange with
two #8 X 1” sheet metal
screws.

#8

M4
Gasket

Grommet

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

®

8 X 1 PPHSMS

Installation Guide:

400 Series to M4 Series Flange Adapter

Model M4FC400

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

NOTE: Due to the mounting hole locations
for the M Series and the variety of lighthead

Round Hole
Grommets

M4
Flange

Mounting
Gasket

styles which may be replaced, cutting or
drilling may be required for the screws

going into the square grommets.

5. Secure the Flange and lighthead to the vehicle
with the 4 supplied #8 X 1” sheet metal screws
and round grommets you installed in step 3.

6. Extend the wires to your power source and
connect as shown in the lighthead manual

4.874"

M4 Mounting Configuration

2.686"

#8 X 1 PPHSMS

Automotive: Lightheads

©2009 Whelen Engineering Company Inc.
Form No.14339 (080409)

#8

M4
Gasket

Grommet

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

8 X 1 PPHSMS

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