12
Installation and Maintenance Instructions
Spire
™
200 Beacon
Federal Signal www.fedsig.com
intersect the middle circle in Figure 3). The 4-inch pattern is
the preferred pattern for permanent mounting.
If one of the optional mounting flanges is to be used,
three #10 screws are on a 6.00-inch circle (where the lines
intersect the outer circle in Figure 3).
Drill three, 0.177-inch diameter holes for the #8 screws, or
three 0.201-inch diameter holes for the #10 screws.
Figure 3 Drilling (Not to scale)
4.00”
6.00”
120.0°
2.75”
120.0°
2. Scribe a hole for the wires or an installer-supplied bushing at
the center of the screw pattern.
