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3. Tilt the eccentrically pivoted lever so that it forms roughly the extension
of the hub axle. Hold the lever in this position.
4. Now turn the screw nut until the eccentrically pivoted lever
when turned through 90° about its pivot can only move against
a resista nce (it then forms more or less the straight extension
of the hub axle).
5. Now press the lever by a further 90° up to its e nd position.
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