SkyTracker MiniTracker, Инструкция по эксплуатации

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5
Inspect the brushes for wear. If the distance from the top of
the insulator to the lower part of the brush spring is 0.093 inch
(2mm) or less, replace the brush. Before installing the new
brush, inspect the brush contact surface. Remove surface
dust, oxidation, pitting, or other contaminants with a wire
brush.
It is advisable to replace the brush springs at the same time
to insure proper spring tension. If brush springs fall below
two pounds of tension, continued use will be detrimental to
the slip ring, and the springs
must be replaced.
Inspect and test the springs to assure
uniform brush tension. Tension should be
measured at the top center of the brush,
and should exceed two pounds. Replace
the spring if the tension fall below two
pounds. CAUTION: do not lift the spring
more than 1/8 inch (3mm) when measuring
or spring tension may be affected.
All brushes must run at 90° (±3°) square on the rings. If a brush is not square, adjust to
vertical by moving the coil of the spring. Brushes need not run on the exact center of the
rings, but there should be no forceful friction against the insulators. The brush spring
crossbar must be seated in the brush slot, and spring hooks must seat securely on
brushposts.
Contact your Strong Entertainment Lighting distributor for information regarding replace-
ment brushes and springs.