32
S&C Instruction Sheet 1045M-510
Installing the Reciprocating Switch Operator
STEP 9.
Use the manual handle to close the switch by lifting the crank arm upward.
(a) Open the operating mechanism shroud, if installed (see Figure 21). Attach the
manual operating handle (see Figure 22 on page 33), and rotate the output crank
upward until the switch is firmly closed. This should require an output crank
movement of approximately 90 degrees, moving from 45 to 50 degrees below
horizontal to approximately 45 degrees above horizontal. The switch operating
lever at the top of the control rod should move in parallel with the output crank
on the switch operator.
(b) Carefully inspect the switch blades and mating contacts to ensure that all
blades are uniformly seated in their mating surfaces. If not, adjust the blades
individually according to the switch manufacturer’s procedure.
STEP 10.
Use the manual handle to reopen the switch. The output crank should now be
45 degrees below horizontal.
Figure 21. The side view of reciprocating switch operator showing the optional protective shroud
at the rear.
MOUNTING
CHANNEL
(BOLTED TO
POLE)
OPTIONAL
SHROUD
DOOR
DOOR
HANDLE
Figure 20. Position linkage as shown to center the operating rod on the pole.
