Installation
S&C Instruction Sheet 716-500 17
STEP 12. Attach the upper terminal pad as follows:
(a) Remove the interrupter lifting bracket and
associated ½-inch stainless steel hardware from on
top of the interrupter. See Figure 17. Discard the
lifting bracket but retain the hardware.
Interrupter lifting
bracket
Figure 17. Remove the interrupter lifting bracket.
(b) Thoroughly wire-brush the indicator end-casting
where the upper terminal pad is to be attached as
well as the mating surface on the upper terminal
pad, and immediately apply a liberal coating of
Penetrox A or other suitable aluminum-connector
compound. See Figure 18.
Prepare surface of end casting
Figure 18. Wire-brush the surface of the end casting and pre-
pare with aluminum connector compound.
(c) Attach the upper terminal pad using three ½-13 × 1¼
hex-head stainless steel cap screws and Belleville
washers. See Figure 19.
NOTICE
The terminal pad may be positioned in either of two
ways, 180 degrees apart. See the catalog drawing for
details.
Repeat Steps 9 through 12 for the other two interrupters.
½-13 × 1¼ hex-head stainless steel cap screws
Figure 19. Attach the terminal pad
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