Johnson Theodolites 40-6936 Manual De Instrucciones página 11

8863H-All_Manuals 3/19/15 3:25 PM Page 11
• Now check the ground point centering. If you are not directly on the
point, carefully loosen the tripod fastener and move the instrument on
the tripod head in an x - y direction. Do not rotate the instrument.
Recheck leveling and repeat until instrument is level and over the
ground point at the same time. With practice, this becomes easier.
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