GEI-88767
ADJUSTMENTS SE-lOOM
Mechanism
Refer to Page 6.
Primary Wipe
When the switch is in the closed position, there should be no clearance
between the primary blades and the primary finger support. The length
of the operating rod should be adjusted so that there is noticeable
force involved when the operating rod goes over center near the end of
the closing stroke. When the switch is fully closed it should require
between 30 and 40 pounds force to break the toggle. This force is ap-
plied at the bolt in the mechanism end of the operating rod and is ap-
plied downward perpendicular to the long axis of the operating rod. This
force may be increased by lengthening the rod and decreased by shortening
the rod.
Primary
Refer to Page 7.
Contact
Close the primary blades {12) Fig. 8
nance handle and note the engagement
guide block (10) . The blades should
out bearing heavily on either side.
the primary contact fingers.
slowly by the use of the mainte-
of the primary contacts {4) , and
center around the guide block with
They should also be centered in
If the blades press hard against the sides of the guide block, loosen
the {2) bolts {11) Fig. 8 holding the block. Again check the contact
alignment. If the contacts are properly aligned, reposition the guide
block and bolt securely.
If the contacts are not in alignment, loosen the bolts holding the
top insulator and position the insulator to center the contacts.
After securing the insulators, reposition the guide blocks and tighten
the bolts.
Be certain the insulator is moved only in a horizontal direction.
Vertical displacement may cause misalignment of the auxiliary blade
contacts.
Arc Chute
Refer to Page 7.
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