HAMAR LASER STEALTH Series, General Training Manual

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Setting the First Level Vial – Roll 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 Roll Axis adjustment knob on
the laser base until the readout displays the
calculated Set Point (see Step 5).
7. Adjust the level.
Locate the two recessed adjustment screws for
the Roll Axis level you are adjusting (see Figure
12). 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).
To move the bubble to the left, unscrew the left
set screw and tighten the right set screw. When
the bubble is centered, tighten the left screw until the bubble is stationary – don’t over-tighten the
set screw . 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
Ensure 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 12 –
L-733 (top view) showing location of Precision Level Vials and corresponding
adjustment screws. Also see our YouTube video: How to Calibrate Level Vials.