6. To protect the wires from shorts, smooth the
edges of the 5/8" wire routing hole. If desired, a user-
supplied grommet can be installed in the 5/8" wire routing
hole.
7. Align the holes in the mounting gasket with
the appropriate holes in the base and apply the mounting
gasket to the base of the light . Route the light’s wires
through the gasket’s wire routing hole and through the
mounting surface.
8. Apply a silicone sealing compound around the
wires and grommet (if installed) where they pass through
the mounting surface to prevent leakage.
9. See figure 3. Secure the base to the mounting
surface with the three #10 thread-forming screws and flat
washers.
10. Replace the dome.
11. Route the light’s gray eight-conductor cable to
the control unit. Insert the gray cable’s connector into the
receptacle on the bottom of the control unit.
12. Connect the light’s black wire to a known good
vehicle ground.
13. Connect the light’s red wire to one side of a
user-supplied fuseholder. Connect the other side of the
fuseholder to the positive (+) terminal of the vehicle’s
battery. Install a six (6) ampere fuse in the fuseholder.
B. Pipe Mount Models.
1. Route the light’s wires through the pipe that
will be used for mounting the light.
2. Screw the flange mount light onto the pipe.
Position the light with the dome release button toward the
rear.
3. Route the light’s gray eight-conductor cable to
the control unit. Insert the gray cable’s connector into the
receptacle on the bottom of the control unit.
4. Connect the light’s black wire to a known good
vehicle ground.
5. Connect the light’s red wire to one side of a
user-supplied fuseholder. Connect the other side of the
fuseholder to the positive (+) terminal of the vehicle’s
battery. Install a six (6) ampere fuse in the fuseholder.
C. Magnetic Mount Models.
Magnetic mounting provides a secure, temporary
mounting method for most installations. However, it is not
intended for use on the exterior of a moving vehicle.
WARNING
Because vehicle roof construction and driving condi-
tions vary, Federal does not recommend driving a
vehicle with a magnetically mounted warning light
installed. The light could fly off the vehicle causing
injury or damage. Repair of damage incurred because
of ignoring this warning shall be the sole responsi-
bility of the user.
Holding power of magnetic mounting systems is
dependent upon surface finish, surface flatness, and
thickness of the steel mounting surface. Therefore,
to promote proper magnetic mounting:
• Mounting surface and magnets must be kept
clean, dry, and free of foreign particles that
prevent good surface contact.
• Ensure that mounting surface is flat.
• Magnet mounting system should not be used
on vehicles with vinyl tops.
• To prevent sliding of light assembly on mount-
ing surface, quick acceleration and hard stops
should be avoided.
• If the light is to be held directly to the roof by
the magnet, ensure that the power cable is not
under the magnet.
1. Place the light assembly on a level steel
surface. Ensure that the light is placed to promote maxi-
mum coverage and range of the light’s warning signal.
2. Insert the plug on the end of the power cord
into the cigar lighter socket.
NOTE
When using the vehicle’s cigar lighter socket as the
light’s power source, Federal recommends replacing
the original lighter circuit fuse with an eight-ampere
fuse. After the original fuse has been replaced, de-
vices requiring more than eight amperes will cause
failure of the lighter circuit fuse and therefore should
not be plugged into the cigar lighter socket.
If direct connection to the power source (not utilizing
the cigar lighter plug) is desired, a user-supplied in-
line fuseholder and eight-ampere fuse must be
installed in the power cord’s ribbed (positive) lead.
3. Route the light’s gray eight-conductor cable to
the control unit. Insert the gray cable’s connector into the
receptacle on the bottom of the control unit.
Figure 3.
-3-
DOME
BASE MOUNTING
SURFACE
MOUNTING
GASKET
RED TO FUSE AND POS.(+)
#10 FLAT WASHERS (3) #10-32 x 3/4" SCREWS (3)
290A2669-05B
BLK TO GND (-)GRA, 8 CONDUCTOR TO CONTROL
