Southern States EV-2H, Руководство по установке

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Page 9 of 21
Installation & Adjustment Procedures
2.1.3. The blade tip must come down into the jaw in its center, without dragging on
either side as shown in Figure 6 . Use the jack screws that support the jaw
insulator to tilt the insulator sideways, if necessary to ensure this condition.
Figure 6. Blade Tip Travel
2.1.4. The blade tip must come down firmly on the stop in the jaw. If necessary, use the
jack screws that support the jaw insulator to elevate it as required. Note: By
adjusting all jackscrews equally (count the flats) and previous adjustment will not
be disturbed.
Never attempt to force the blade tip into the jaw. Any attempt to
adjust the contact / blade tip alignment by bending the blade will result in damage
to the switch which will prevent further operation.
2.1.5. These switches will have adequate contact pressure if the blade has rotated to
within plus or minus 5
o
of perpendicular in the contacts as shown in Figure 7 .
Adjustment of the bearing stop may be required.
Figure 7. Blade Tip Must Be As Flat in the Jaw as Possible
Refer To Unit Assembly Drawing For Closed Position Stop Location