User Manual – eSX
OptiPro Systems, LLC.
Page 100 of 111
Last Modified: 8/27/2014
10.1.1
Check Hydraulic Chuck Run Out
1.
Place the precision tram pin in the chuck and tighten down the chuck actuation screw to secure
the pin.
2.
Place an indicator on the pin, closer to the top of the chuck (see Figure 10-1).
Figure 10-1: Indicator Placement for Chuck Run Out
3.
Spin the C-axis and check the indicator. The run out of the chuck should be between 0-2µm. If
the run out is greater than 2 µm then the chuck needs to be adjusted.
If the chuck needs to be adjusted:
1.
Slightly loosen the four M8 bolts holding the chuck to the table.
2.
Spin the C-axis and stop on the greatest value on the indicator.
3.
Gently tap the hydraulic chuck, using a small rubber mallet or brass bar, to decrease the
reading on the indicator by about half.
4.
Slightly tighten the four mounting bolts without moving the chuck.
5.
Repeat steps 2, 3 and 4 until the indicator reads between 0-2 µm.
6.
Make sure all bolts are tightened completely and the chuck is still within the 2 µm.
