S&C Instruction Sheet 761-507 11
Installation
Lifting Vertical Mounting
Configuration Switch
STEP 9. To minimize time-consuming nal adjust ments,
make sure the switch is fully closed. Tie the
switch blades to their station ary main contact
assemblies. See Figure 11.
STEP 10.
WARNING
DO NOT lift the switch by rigging to the live
parts. Avoid allowing the switch poles to
swing while lifting.
Lifting the switch by the live parts will dam-
age the switch. Rough handling may cause
damage to the blades and contacts.
Failure to lift the switch properly can result
in switch damage, causing improper opera-
tion, arcing, or electrical shock.
The switch will role somewhat more than
90 degrees as it clears the shipping skid.
Hoist the switch using the two lifting eyes
attached to the outboard switch pole-unit bases.
See Figure 12.
Unbolt the 4-inch (102-cm) x 4-inch (102-cm)
wood blocks attached to the switch base after the
switch is hoisted to the vertical position. These
blocks prevent damage to the lower live parts of
the switch, as the switch is being hoisted.
Figure 11. Tieing the switch blade to the main contacts.
Figure 12. Hoisting the switch into position.
4-inch (102-mm) 4-inch (102-mm) wood blocks
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