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Installation
Modulator High-Powered Omni Speaker (MOD Series)
To mount the siren on the Class 2 utility pole using the three-foot-long angle iron legs:
1. Uncrate the siren and remove the nuts that hold the siren on the shipping base. Install
drivers if needed. Lift the siren approximately 3-1/2 feet with a crane or hoist.
NOTE: To protect the speaker arrays from damage during shipping, all models have
been shipped without drivers installed.
2. If you ordered optional top and side lights, see “Installing Lights on the Siren” on
page 21. You may want to install lights prior to placing onto pole.
3. Install the four legs on the siren mounting plate, as shown in “Figure 2 Siren Leg
Assembly” on page 14. Use two stainless steel 1/2-inch bolts, nuts and lock
washers (provided) for each leg. All mounting hardware needed is supplied in the
hardware kit shipped with this manual. Do not tighten the bolts completely.
The eyebolt does NOT have sufcient 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 eyebolt as a lifting point.
4. Erect the utility pole in accordance with accepted practices and FEMA guidelines
(refer to warning). Be sure the pole extends at least 40 feet above the ground.
5. Raise the siren to the necessary height and lower it over the pole. Maintain tension
on lifting chain until all bolts are tightened.
6. Adjust the legs and insert shims, if necessary, between the siren legs and pole. Bolt
the siren to the pole using two user supplied 5/8-inch lag bolts, at least 4 inches long
for each leg. Tighten all bolts, including those from step 2.
Steel Pole Mounting
In a typical steel pole-mounted siren installation the MOD1004BC, MOD2008BC and
MOD3012BC sirens are mounted on a Grade A Standard galvanized steel pole. The
MOD4016BC, MOD5020BC, MOD6024BC, MOD6032BC, and MOD8032BC are
mounted on a Grade A Heavy galvanized steel pole. (Ensure that soil loads will conform
to this size utility pole.)
NOTE: The siren leg assembly is not included with the steel/concrete pole models.
To mount the siren on a Grade A Standard galvanized steel pole:
1. Erect the steel utility pole in accordance with accepted practices and FEMA
guidelines.
2. Uncrate the siren. Remove and dispose of any hardware that holds the siren on the
shipping base. Install drivers (see NOTE on page 13). Lift the siren with a crane or
hoist to the necessary height and lower it over the pole. Maintain tension on lifting
chain until all bolts are tightened.
3. If you ordered optional top and side lights, see Installing Lights on the Siren. You
may want to install lights prior to placing onto poll.
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