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S&C Instruction Sheet 1045M-510
Installing the Reciprocating Switch Operator
Figure 15. The side view of reciprocating switch operator showing mounting bolts through pole.
(b) The correct length for each
⅝
-inch bolt will be the diameter of the pole at the
point of insertion plus 3
¼
inches (83 mm). Check the pole diameter at the
location of each hole and select a bolt of the correct length before beginning the
installation.
(c) Insert the top bolt from the operator side of the pole with a round washer that
fits through the key hole in the operator mounting channel. Start the nut and
washer on the top bolt. Insert the bottom bolt from the back side of the pole, but
leave the nut off for the time being.
(d) Hoist the reciprocating switch operator into position with a suitable hoisting rig
or hydraulic boom. The hole at the top of the mounting channel can be used as a
lifting eye. If the optional protective shroud is installed, temporarily lift the
shroud doors off their hinge pins and set the doors aside to get better access to
the back of the switch operator. Lift and position the switch operator so the head
and washer of the top bolt come through the top keyhole in the mounting channel
at the rear of the switch operator. Insert the bottom bolt through the mounting
channel and start a nut with washer.
(e) When the switch operator is in position, seat the switch operator firmly against
the pole by firmly tightening the mounting bolts. DO NOT release hoisting
tension, and DO NOT disconnect and remove the hoisting rig or boom, until sure
there is a tight, solid installation and both mounting bolts are fully tightened.
NOTICE
After tightening both bolts, check to make sure the end of the bottom bolt does not
extend more than 2 inches (51 mm) from the mounting channel. If the bolt sticks out
too far, it could interfere with the movement of the output crank arm. If the bolt sticks
out farther than 2 inches (51 mm), replace it with a shorter bolt or cut off the excess
length. Do not cut off the bolts completely flush with the nuts because this would
make it difficult to reinstall the unit if it had to be taken off the pole for any reason.
