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Installation & Adjustment Procedures
Adjustment
Adjustment of switch in closed position
If the blade does not align properly with the contact, improper operation and possible damage
will result. Check to make sure all bolts are tight. Variances in insulators may cause some
misalignment, which will require shimming of the insulator to obtain proper alignment. Note: A
simpler method would be to center and tighten the rotating stack/blade end and leave the
contact end slightly loose. Manually close the blade and allow the contact to center itself. If the
contact is entering the blade too low or too high, use the jacking bolts to align and tighten the
contact in place once properly aligned and fully closed.
Adjustment of switch in open position
Rotate the hinge end Insulator stack to the open position. Refer to the assembly drawing for the
min. open gap dimension (Figure 4). Check stops on rotating bearing at base of the rotating
insulator; be sure these stops have been set to allow the proper angle of rotation (Figure 5).
Figure 4: Blade Shown Fully Open
Figure 5: Rotating Insulator Bearing
Closed Bearing Stop
Switch arm stop
Open Bearing Stop