S&C 2000 Series Instruction Sheet page 10

Interrupter Replacement on Models 2020 and 2030
Complete the following steps to replace the interrupters
in Models 2020 and 2030 Series 2000 Circuit-Switchers:
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
pushbut ton on the operator.
trip-circuit and control-circuit fuse holders or–
on newer oper ators— open the control-source
disconnect switch and remove the motor-and-
closing circuit fuse holder from the operator.
Push the MANUAL TRIP lever counter-
clockwise to trip the interrupters. Do not
replace the fuse holder(s) until so directed.
To avoid serious injury or death, 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
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-inch carriage bolt at each end.
Position this container-half so 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-inch zinc-plated serrated
hex nut on each of the two 3/8–16×2-inch
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.
● TRIP/CLOSE pushbuttons 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�
10 S&C Instruction Sheet 716-600
by pressing the CLOSE
Then, remove the
●
DANGER
spare interrupter container,
3/8–16-inch zinc-plated serrated hex nuts (2)
3/8–16×2-inch carriage bolts (2)
Lifting rings (4)
Figure 1� Assembling a spare interrupter container�
Figure 2� Raising a spare interrupter container into
position on an interrupter being replaced� Model 2030
circuit-switcher illustrated; Model 2020 is similar�