12
Installation
Models 2-120 and 2-240
Federal Signal www.fedsig.com
Pole Installation
A Pole Mounting Stand (Model PMS) is required when mounting the Model 2 on a utility
pole. The PMS consists of a mounting plate, three angle iron legs, six 1/2-inch -13 by
2-inch hex head cap screws, six 1/2-inch-13 nuts, and six 1/2-inch lock washers.
To install the siren on a pole:
1.
Uncrate the siren and remove the siren from the shipping base.
2.
Attach the cast iron legs of the siren mechanism to the mounting plate using 3/8-inch
lock washers, nuts, and bolts through the three slots in the mounting plate. (See
Figure 2.)
3.
Set the siren housing over the siren mechanism on the mounting plate. Center the
housing over the mechanism. Attach the housing to the plate using aluminum clips,
1/4-inch lock washers, nuts, and bolts through the three 3/8-inch diameter holes. (See
Figures 2 and 10.)
Figure 2 Mounting Plate Drilling Detail
291190B
EQUALLY SPACED
3X Ø0.38 HOLE
3X 0.75 X 1.00 SLOT
EQUALLY SPACED
3X Ø0.75 HOLE
R7.13
Ø1.50 HOLE
18.00
120°
60.00°
109.2°
125.4°
125.4°
18.00
R7.88
R5.09
30.00°
4.
Lay the siren mechanism on its side and attach the three legs to the mounting plate
using three angle iron clips and six 1/2-inch-13 nuts and bolts. Attach the legs
through three 0.75-inch by 1-inch slotted holes indicated in Figure 2.
