INSTRUCTION SHEET
716-600
Page 5 of 24
February 11, 2002
S&C ELECTRIC COMPANY
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030
Step 1
After following the user’s standard procedures for clearing
and tagging equipment on which work is to be performed,
close the Circuit-Switcher by pressing the “CLOSE” push
button on the operator.
d
Then remove the trip-circuit and
control-circuit fuseholders or—on newer operators—open
the control-source disconnect switch and remove the
motor-and-closing circuit fuseholder from the operator.
Push the manual trip lever counterclockwise to trip the
interrupters. Do not replace the fuseholder(s) until so
directed.
Do not open the disconnect on Model 2020 Circuit-
Switchers by means of the manual charging handle. The
Series 2000 Circuit-Switcher Operator must remain dis-
charged during the interrupter replacement procedure.
Step 2
Install the spare interrupter container, furnished with the
replacement interrupter, around the interrupter to be
replaced, using the following procedure:
(a) Remove the two container-halves from the shipping
crate. Note that one of the container-halves is fur-
nished with a loosely attached
³⁄₈
—16
2
carriage bolt
at each end. Position this container-half so that the car-
riage-bolt threads protrude through the holes at the
ends of the other container-half as shown in Figure 1.
(b) Thread a
³⁄₈
—16 zinc-plated serrated hex nut on each
of the two
³⁄₈
—16
2
carriage bolts. Tighten each hex
nut just a few turns. See Figure 1.
(c) Attach suitable lifting slings to the lifting rings at one
end of the container-half assembly. See Figure 2. Raise
the container into position around the interrupter.
d
Trip-close push buttons are not included on operators specified with
catalog number suffix “-J.” In such instances, momentarily jumper termi-
nals 1 and 3 to close the Circuit-Switcher.
Figure 1. Assembling spare interrupter container.
Figure 2. Raising spare interrupter container into position
on interrupter being replaced. Model 2030 Circuit-Switcher
illustrated; Models 2020 and 2025 are similar.
Lifting rings
(4)
³⁄₈
—16
2
carriage bolts
(2)
³⁄₈
—16 zinc-plated serrated hex nuts
(2)
