S&C ELECTRIC COMPANY
s
INSTRUCTION SHEET
716-501
Page 19 of 26
August 12, 2002
INSTALLATION — Continued
Step 19
Make certain that the insulating support column drive
lever at each pole-unit is turned completely in the blade-
closing direction.
Connect the factory-adjusted inter-
phase pipe assembly to the center pole-unit insulating
support column drive lever using a
¹⁄₂
-inch stainless-steel
pin, two galvanized steel spacers, and two stainless-steel
“X” washers furnished. See Figure 11. Then attach the
interphase pipe assembly to the two outboard pole-unit
insulating support column drive levers.
In the event that the interphase pipe assembly cannot
be connected to an outboard pole-unit insulating support
column drive lever, loosen the appropriate locknut at the
adjustable coupling and rotate the affected interphase
pipe section so that the connection can be made; then
tighten the locknut. See Figure 11.
Verify, at each outboard pole-unit insulating support
column, that the clearance between the rotating-spindle
closed-stop bolt and the bumper is
¹⁄₁₆
inch or less. See
Figure 12 (left). (At the center pole-unit insulating support
column, the closed-stop bolt must touch the bumper.) In
the event that the clearance between the closed-stop bolt
and the bumper exceeds
¹⁄₁₆
inch at either outboard pole-
unit insulating support column, remove the pin at the
appropriate insulating support column drive lever, loosen
the appropriate locknut at the adjustable coupling, and
rotate the affected interphase pipe section so that the
aforementioned clearance is attained. Then replaced the
pin and tighten the locknut. See Figure 11.
Do not adjust
the closed-stop bolts.
Step 20
Attach the clevis end of the interphase drive link to the
longer of the bell-crank arms on the cross base, using a
¹⁄₂
-
inch stainless-steel pin and cotter pin furnished. See
Figure 11.
Step 21
Attach the “C”-shaped clevis at the lower end of the verti-
cal operating-pipe assembly to the take-off shaft on the
rear of the operator, using a
⁵⁄₈
-inch stainless-steel pin and
stainless-steel “X” washer furnished. See Figure 11 (inset).
Then attach the straight clevis at the upper end of the ver-
tical operating-pipe assembly to the shorter of the bell-
crank arms on the cross base, using a
⁵⁄₈
-inch stainless-
steel pin and cotter pin furnished. See Figure 11. If neces-
sary, loosen the locknuts at the top and bottom of the ver-
tical operating pipe and rotate the pipe so that the
connection can be made; then tighten the locknuts.
Figure 12. Clearances at closed and open stops.
0
at center pole-unit
¹⁄₁₆
max. at outboard
pole-units
Disconnect in closed position
Disconnect in open position
Bumper
Open-stop
bolt
Closed-stop
bolt
Rotating
spindle
Insulating support
column
Must not touch
Do not adjust
closed-stop bolt
Do not adjust
open-stop bolt
