S&C 2020 - Drive Linkage and Control Connections

S&C Instruction Sheet 716-504 21
Installation
Connecting the Operator and
Pole-Units to the
High-Speed Power Train
Step 18
Attach the uni-ball coupling on the operator
connecting link to the interphase drive lever in
the high-speed base using the ¾-inch stainless
steel pin and cotter pin retained from Step8.
See Figure 21. An adjustable locking rod
(marked with a black/yellow striped label) is
furnished factory-connected to the interphase
drive lever; turn the associated ¼–20 locknuts
as required to raise or lower the interphase
drive lever and thus facilitate insertion of the
stainless steel pin.
Step 19
Remove the lower ¼–20 locknut that retains
the adjustable locking rod, then remove and
discard the adjustable locking rod and locknuts.
See Figure21.
Figure 19. Wire brush the surface of the end casting and preparing with
aluminum-connector compound.
Figure 20. Attach the terminal pad. Shown with Option “-N” Enhanced-
Visibility low-pressure indicator.
Figure 21. Attach the Uni-ball coupling to the interphase drive lever.
Interphase drive lever
Adjustable locking rod
(marked with a black/
yellow striped label)
¾-inch
stainless steel pin
and cotter pin
Uni-ball coupling
End casting
¼-inch–20 locknut
Terminal pad