1
INSTALLATION
-
Continued
I
For
69-kv
Circuit-Stitchers
only: These devices are
shipped with disconnect blades in a partially open
position.
Attach the flexible or universal coupling to the output
shaft of the switch operator.
Check to be sure that the cutting tips of the piercing
set screws do not protrude through the body of the
flexible or universal coupling. Then install the vertical
shaft as indicated on the erection drawing. Tighten the
clamp bolts equally so that the clamp pulls down evenly,
but do
not
tighten the piercing set screws at this time.
Then, using the switch operator’s manual operating
handle, crank the Circuit-Switcher to the fully closed
position. Next, loosen the clamp bolts on the flexible
or universal coupling on the switch operator’s output
shaft and crank the switch operator to the closed
position as indicated by its closed position indicator.
Retighten the clamp bolts. Then tighten the piercing
set screws, piercing the shaft, and continue turning until
a firm resistance is felt.
Refer to S&C Instruction Sheet 719-500 and adjust
the switch operator for electrical operation as described
in the ‘ADJUSTMENTS” section. Note in particular that,
when the switch operator travel-limit adjustments have
been completed, all auxiliary contacts being used must
be checked for proper operation.
A
\
60”
minimum angle
I
igure 4. Method of hoisting, using nylon slings.
INSTRUCTION SHEET
7
llm5m
q
S&C ELECTRIC COMPANY
l
Chicago
Page g of 12
S&C ELECTRIC CANADA LTD.
l
Toronto
December
16,lggl
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