HAMAR LASER STEALTH Series, General Training Manual

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Setting the First Level Vial – Pitch Axis
6. Tilt the laser to the Set Point
Move the target back to the Near Point to
verify it still reads zero. If not, re-zero it.
Then move the target back to the Far Point
and tilt the laser by adjusting the
Pitch Axis
adjustment knob on the laser base until the
readout displays the calculated Set Point.
7. Adjust the level.
Locate the two recessed adjustment screws
for the Pitch Axis level you are adjusting).
Using the wrench provided, adjust the level
assembly until the bubble is centered in the
window for the Standard Level vials or the
two halves of the bubbles line up for the Split
Prism Level vial (see Figure 8 and
Figure 9).
For example, to move the bubble to
the left, loosen the left screw and
tighten the right screw. When the
bubble is centered, tighten the left
screw until the bubble is stationary.
Check your work by repeating these
steps and ensuring that the level is
calibrated to within the specified
tolerances.
Note: Tighten the set screws just
firmly enough to hold the window
assembly in place. Over- tightening
these screws may cause damage.
Checking the Levels for Accuracy
It’s best to make sure that your calculations were correct and redo the calibration procedure to verify the
Set Point is still the same within the tolerances outlined above. If it’s still out of spec, then calculate a
new Set Point and adjust as necessary. In some cases, if the level window requires a lot of adjustment
(i.e. the levels were way out of calibration), then it may require a second calibration procedure to get
“dialed in”.
Figure 13 – L-733 (top view) showing location of Precision Level Vials and corresponding
adjustment screws. Also see our YouTube video: How to Calibrate Level Vials.