2031005555 Revision B, 04/14 10
If the resistance is inadequate, repeat the above procedure and turn the small Hex
screw another 1/4 turn.)
5.1.4 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
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