S&C ELECTRIC COMPANY
s
716-501
INSTRUCTION SHEET
Page 12 of 26
August 12, 2002
S&C Series 2000 Circuit-Switchers Model 2010 — With Horizontal Interrupters and
Outdoor Transmission (69 kV through 230 kV) Vertical-Break Power-Operated Disconnect
INSTALLATION — Continued
Figure 5. Raising operator upon base skid.
Step 7
Loosen the ¹⁄₂—131¹⁄₄ galvanized steel cap screws, flat
washers, and nuts which are used to attach the bottom
plates to the underside of the cross base. Remove the
plates and place them and their hardware aside on a clean
surface.
Also remove the ³⁄₄-inch stainless-steel pin and cotter
pin from the interphase drive lever enclosed in the cross
base. See Figure 10. Retain these pins for re-use in
Step 17.
Step 8
Wrap a lifting sling around the stored-energy housing of
the operator, as shown in Figure 5 (left). Now carefully
raise the operator to the upright position so that it rests
on its base skid, as shown in Figure 5 (right). Do not
remove the lifting sling around the stored-energy hous-
ing, as the operator is top-heavy and must be adequately
supported until it is attached to the Circuit-Switcher.
Remove the skid and bracing which runs the length of the
operator, stored-energy housing, and operator support
tube. Also remove the protective cover atop the operator
support tube, as well as the protective covers on the oper-
ator enclosure louvers.
Step 9
Reposition the lifting sling around the front of the stored-
energy housing and wrap another lifting sling around the
back of the stored-energy housing, as shown in Figure 6.
Make certain that the operator door faces the same way
as the switch-position indicator on the cross base. Then
carefully hoist the operator into place. Be careful not to
damage the uni-ball coupling on the operator connecting
link during hoisting and attachment of the operator.
Attach the operator support tube mounting plate to the
underside of the cross base using four ¹⁄₂—131¹⁄₄ hex-
head galvanized steel cap screws, flat washers, and self-
locking hex nuts. Tighten all four screws securely.
Stored-energy housing
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