5.4 Perpendicular of Vertical Hair of Reticle of Telescope
Inspection
Adjustment
1. Fix the instrument on the tripod and perform precise leveling up.
2. Set a target point A 50 m away from instrument.
3. Aim the telescope at target point A and adjust the vertical fine movement. If point A
moves along the vertical hair of the reticle, no adjustment is required; perform adjust-
ment if the target point A strays from the vertical hair.
Inspection and Adjustment
1. Remove the protective cover of the
reticle and slightly loosen the four
adjusting screws. Turn the assembly so
that point A coincides with the vertical
hair. Retighten the four adjusting
screws.
2. Repeat step 3. in "Inspection" and step
1. in "Adjustment" until there is no error.
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