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16. Mid centring device (NOT QuickSpan)
a) In order to change the clamping means, switch off the machine. At the centre and inside of the
threaded shaft there is a large securing bolt, which requires an Allen key, which comes with the
standard scope of delivery (photo below) to loosen. Then take a rubber hammer and holding the
shaft in one hand, slightly tap on the inside of the clamping means until it loosens from its
mounting cone on the main shaft of the balance machine.
The left photo shows the Allen key used to loosen the clamping means on the right. The photo
below shows the process of removing the clamping means.
b) Before replacing the clamping means, clean the main shaft cone with a clean cloth. Before
tightening the centre bolt, make sure that the position of threaded hole for the calibration weight
aligns up in line with the red point on the main shaft.
c) Technical data
Diameter of the shaft is 40mm with a cone centre hole of SK40
Diameter of the trapezoidal screw thread TR40x3 is 40mm
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