...
5. Move scale over to the test block by keeping constant pressure on the spindle tip levers (Fig. 19).
Test BlockWeight 
Figure 19
6. Set down gently and wiggle.
7. The scale should read the same as the Actual Flatness on the Operating screen (Fig. 12).
- Each small notch on the scale is 2 um and the numbers are 10 um each.
- If the scale reads the same, you know the Actual Flatness is set properly. Check this daily.
- If it is not the same, repeat the process.
- If it is still off after that, you will need to maintain flatness of the plate manually.