5
1/2-13 HEX NUTS (8)
SPLIT LOCKWASHERS (8)
1/2-13 HEX HD. BOLTS (8)
LEGS (4)
SIREN
BASE PLATE
LEGS (4)
SEE DETAIL
BELOW
291307A
Figure 3-2. Siren Leg Assembly.
Using the 3 ft. long angle iron legs, the
siren is mounted on the Class 2 utility pole as
follows:
1. Uncrate the siren and remove the
nuts that hold the siren on the shipping base.
Lift the siren approximately 3-1/2 ft. with a
crane or hoist.
2. Install the four legs on the siren
mounting plate, as shown in figure 3-2. Use
two 1/2" bolts, nuts and lockwashers
(provided) for each leg. Do not tighten the
bolts completely.
WARNING
The lifting bracket does NOT have
sufficient strength to support the
combined weight of the siren and a
utility pole. Therefore, do NOT
attempt to erect the pole and siren
together using the bracket as a
lifting point.
3. Erect the utility pole in accordance
with accepted practices. Be sure the pole
extends about 48 ft. above the ground (refer
to WARNING above).
4. Raise the siren to the necessary
height, and lower it over the pole.
5. Adjust the legs and insert shims, if
necessary, between the siren legs and pole.
Bolt the siren to the pole using two 5/8" lag
bolts, at least four inches long for each leg.
Tighten all bolts.
C. Flat Surface Mount.
This installation configuration is practical
when the installation site is on a flat roofed
building. The siren can be anchored directly
to the roof, on a platform as shown in figure
3-3, or on a weight distribution mat like the
one shown in figure 3-4.
This mat is required when the siren
mounting surface is unable to support over
176 pounds per square foot (859kg per
square meter). The mat shown in figure 3-3
distributes the siren weight to approximately
25 pounds per square foot (122kg per square
meter). When installing the siren on a flat
roof, be sure that it clears the parapets or
other obstructions by at least ten feet.
To install a 2001SRNB on a flat roof or other
flat surface, proceed as follows:
1. If desired, construct a platform for
mounting the siren, which must be capable of
supporting at least 395 lbs. (179kg.) as well
as withstanding a siren wind load of 100
mph. The platform must also be capable of
distributing its own weight plus the siren to a
value that is safe for the mounting surface.
Platform design and construction details are
left to the installer. Locate the platform at the
siren installation site. Using suitable
hardware (not supplied), anchor the platform
to the mounting surface.
Summary of Contents for 2001SRNB
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