Leica TS11 User Manual page 92

TS11/TS15, Check & Adjust
Step Description
5. a) If both circular levels are centred, no adjustments are necessary
b) If one or both circular levels are not centred, adjust as follows:
Instrument: If it extends beyond the circle, use the supplied allen key
to centre it with the adjustment screws. Turn the instrument by
200 gon (180°). Repeat the adjustment procedure if the circular level
does not stay centred.
Tribrach: If it extends beyond the circle, use the supplied allen key to
centre it with the adjustment screws.
After the adjustments, all adjusting screws must have the same tightening
tension and no adjusting screw should be loose.
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