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Page 11 of 17
Installation & Adjustment Procedures
Arcing Horn Adjustment
If arcing horns are supplied and adjustment is required proceed as follows:
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Operate Switch.
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Blade should make light to firm sliding contact along the straight portion of the horn
until the switch is fully closed.
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Readjustment of the arcing horn can be done by grasping it firming and bending until
the action described above is achieved. The arcing horns should have light pressure,
not forcing the blade into place when closing. See Figure 7.
Figure 7: Adjusting Arcing Horn
Check Single-Pole Adjustments
Be sure each single pole is properly adjusted before connecting the controls and operators.
Operate Switch.
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With the switch bolted solidly to the structure, check to make sure that the single-
pole opening is as specified in the single-pole assembly drawing. If readjustment is
required, refer to page 8 - Adjustment.
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Check blade to be sure it meets the contact squarely. If it does not, refer to page 8 -
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Recheck other adjustments as required