Sony LH51 Bedienungsanleitung Seite 46

1. Cautions
38
• Before use, be sure to turn the steel ball with the fingers about the axis of the shaft 2 or 3 times
both clockwise and counterclockwise so that the steel ball rests properly on the end of the shaft.
If this not done, the rust-preventive grease between the steel ball and shaft might cause a
detection error.
Note
• Do not turn the steel ball more than 180° in either direction since a spring is connected to it.
• Do not pull the steel ball and let it spring back sharply against the end of the shaft.
• Fix the shank to the main spindle in such a way that the shank is not inclined against the axis of
the spindle, since inclination of the shank will cause errors in the measurement.
• For more precise positioning at the center of the workpiece: Touch the workpiece with the feeler
ball 1. Then, move the touch sensor to the other side of the workpiece, rotate the shank holder
of the machine through 180° and then touch the workpiece 2. Half the measured value is the
center of the workpiece.
Axis of spindle
Center
1 Workpiece
Give a 180° turn 2 to 3 times
(No more than 180°)
Shaft
Spring
Steel ball
Dust cover
Axis of spindle
Rotate the shank holder of the machine
2 through 180° and then touch the workpiece.