2031005680 Rev. C, 06/2016 9
6.1.4 Drift Elimination
Occasionally during regular use the arms may tend to drift slightly. Increasing the
drag on the arm will eliminate a slight drift. Drag is adjusted by turning the larger of
the two (2) set screws located at both ends of the arm. If drifting persists, use a level
and check that the stand pole is vertical. Just a small amount of vertical offset can
cause a significant amount of arm drift.
Figure 5: Counterbalance Adjustments for Refractor Arm