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Screw off the screw connection slightly and shift the
instrument horizontally (mention that do not turn around the
instrument about the vertical axis at all)according to the laser
plumb the instrument aims at the station precisely.
Each hand held one of two other unstamped feet of the
tripod and adjust their position according to the plummet.
As soon as the plummet aims at the stationcoarsely, stamp
all three feet on the ground. Make the plummet aims at the
station precisely by adjusting the three leveling screws of the
instrument.
4.3 Unloading and charging batteries and information of
battery conditions
Notes:
①
The working duration of batteries depends on the
many factors. e.g. temperature, rate of charging and times