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S&C Instruction Sheet 1045M-510
Installing the Reciprocating Switch Operator
CAUTION
Proper operation of the switch requires that all of the blades move in unison and
that all blades contact their mating surfaces simultaneously during operation.
Failure to make proper contact can result in switch failure.
Figure 24. Release tension on output crank yoke to remove the decoupling pin.
STEP 12.
The switch operator may contain communications equipment (radio, modem,
etc.). Toggle the faceplate REMOTE/LOCAL switch to
Local
state to ensure the
switch operator does not carry out remote switching commands. Remote
switching must be disabled until after the software is set up for this switch
operator installation.
STEP 13.
Remove the ac line fuse and make sure the dc breaker is off. Inside the switch
operator enclosure, remove the 10-A ac line fuse and make sure the 24-volt dc
breaker is off.
CAUTION
Leave the 10-A ac line fuse out and the dc breaker off until instructed otherwise in
the installation process.
STEP 14.
If necessary, adjust the tap position on the spiral wound load resistor. See the
“Adjusting the Tap Position on the Load Resistor” section on page 24 for details.
STEP 15.
Bring ac power to the switch operator.
(a) Locate the conduit hole that accepts a 1-inch (25-mm) conduit adapter on the
bottom of the floor of the switch operator enclosure (see Figure 18 on page 31).
(b) Using conduit, bring an appropriate, de-energized 120-volt power line to the
switch operator enclosure.
STEP 16.
Connect the ac power line to the switch operator. Verify neutral and connect it
to the neutral lug. Then connect the line to the source side (bottom) of the 10-A
ac line fuse holder.
