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Check & Adjust
4.6 Adjusting the Circular Level of the Prism Pole
Adjusting the
circular level
step-by-step
Step
Description
1.
Suspend a plumb line.
2.
Use a pole bipod, to align the prism pole parallel
to the plumb line.
3.
Check the position of the circular level on the
prism pole.
4.
a) If the circular level is centred, no adjustment
is necessary.
b) If the circular level is not centred, use an
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.
1
2
4b
4a
TS_080