HAMAR LASER STEALTH Series, General Training Manual

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Step 3 – Tilt Laser to be Parallel to Reference Points
a. There are two ways to use the Set Point:
• To Go – This is the amount the laser beam
needs to be tilted until the Far point value
is equal to the Near point value. Here you
will tilt the laser until the To Go value is
zero.
•
Set Point - This is the value you want the
main display value to be set to. The laser
is bucked-in when the display value
equals the Set Point.
b. Tilt the laser until either the To Go value is
zero or the display (yellow) value equals the
Set Point.
c. Move the target back to the Near Point and the
value should be equal to the Set Point.
d.
If not, then repeat Steps 2 and 3 until the
display values are zero at both the Near and
Far points. The laser is now bucked-in to the
two reference points for a line on a surface.
To measure the flatness (vertical straightness) in a
line
between the
Near
and
Far
points, move the target
to another point on the surface and the display value will be a measure of that point’s alignment relative
to the reference points.
To measure a surface plane , you will need to find a third reference point and repeat Steps 1, 2 and 3 until
the target reads zero on all three reference points (see Figure 25). When the laser is bucked-into three
points, the entire surface can be measured (rather than just one line on the surface).
Leveling Rolls
For checking level on applications with multiple rolls in
the same horizontal plane, the L-743 or L-733 must be
used since they have a horizontal laser plane in addition
to the two vertical planes of the L-742W or L-732W.
Level the laser, place a target on one end of the roll and
zero. Move the target to the other end of the roll and
measure the deviation from level. If both readings are
zero, then the roll is level. If not, it can be adjusted using
the target as an electronic indictor.