[Setting up the instrument and the tripod]
① Adjust the tripod legs so that a height suitable for observation is obtained when the
instrument is set on the tripod.
② Hang the plumb bob on the hook of the tripod, and coarse centre over the station on the
ground. At this time, set the tripod and fix the metal shoes firmly into the ground so that the tripod head is as levelled as possible.
③ If the tripod head is mis-levelled by the action of fixing the metal shoes into the ground,
correct the level by extending or retracting each leg of the tripod.