712-502
35
Step 55
NOTICE
The cranking direction to close the disconnect
is indicated by an arrow plate located near
the hub of the manual operating handle, and
is set at the factory.
DO NOT attempt to
adjust the motor direction or cranking
direction without fi rst consulting S&C
Electric Company.
Verify that these directions of rotation are
correct as follows:
a. With the selector handle in the coupled
position, manually crank the disconnect to
the fully open position and then to the fully
closed position. Temporarily mark on the
top of the switch operator enclosure the
direction in which the output shaft rotates
to close the disconnect. See Figure 51.
b. If the cranking direction required to close
the Circuit-Switcher is opposite to that
indicated by the arrow plate, remove the
arrow-plate mounting screws and remount
the arrow plate, exposing the other side. See
Figure 52.
c. With the manual operating handle in its
storage position and the selector handle in
the decoupled position, reinsert the motor-
circuit fuseholder. Open the push button
protective cover
a
, and operate the switch
operator by means of the externally mounted
“OPEN-CLOSE” push buttons, if provided, or
in their absence, by momentarily jumpering
Terminals 1 and 8 to open, and 1 and 9 to
close. Note the direction in which the travel-
limit discs rotate when the switch operator
closes. The direction should agree with the
temporary direction mark on the top of the
enclosure and with the direction displayed in
the cutaway section on the outer ring of the
travel-limit discs. See Figure 53a and 53b.
The direction of rotation of the travel-limit
discs is always the same as the direction of
rotation of the output shaft.
a
For switch operator with optional remote-control
blocking switch (Catalog Number Suffi x “-Y”), opening the
push button protective cover prevents remote operation of
the switch operator.
WIRING AND ADJUSTING THE SWITCH OPERATOR
Figure 52. Verify that the direction of the output shaft rotation matches the
direction indicated by the arrow plate.
Output shaft
Arrow plate
Figure 53b. Make sure the cutaway section indicates the correct direction
of rotation. (Closing-stroke disc).
Arrow
(on cutaway section)
Cutaway section
(on outer ring)
Closing-stroke travel-limit disc
(in lowered position)
Figure 53a. Make sure the cutaway section indicates the correct direction
of rotation. (Opening-stroke disc).
Arrow
(on cutaway section)
Cutaway section
(on outer ring)
Opening-stroke travel-limit disc
(in raised position)
Positioning screws
