8 S&C Instruction Sheet 761-507
Installation
Mounting to Wood
NOTICE
When mounting to a wood structure, a spring-type
washer must be used between the square washer
and the nut to maintain fastener tightness in the
event of wood shrinkage. See Figure 2.
Preparing the Pole
STEP 1. Drill two -inch (21-mm) diameter holes
through the utility pole as shown, at the desired
height for mounting the switch. See Figure 3.
Refer to the erection drawing.
STEP 2. Insert a ¾-inch diameter through-bolt (not fur-
nished) into each hole as shown in Figure 4.
Loosely attach a square washer, spring washer
(when mounting to a wood utility pole), and nut
on each bolt.
Spring-type
washer
Figure 2. Applying the spring washer.
Figure 3. Drilling holes for the switch-mounting bracket.
Figure 4. Installing the through-bolts.
Square
washer
Nut
Spring washer
¾-inch
diameter
through-bolt
Approx. 3-inch
(76-mm)
projection
1316
diameter
typ.
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