HAMAR LASER L-705, Manual

Page: 7 / 49

4
The Laser Bore Alignment System Components
Model L-705 Laser
The L-705 Bore Laser is a battery-operated,
visible light laser that mounts magnetically in a
bore fixture or mounting. It is suitable for
almost all bore applications. The laser has two
mounting surfaces: 0.7498 in. (19.04 mm) and
2.2498 in. (57.14 mm). The laser beam is
centered to both mounting ODs to within .0003
in. (0.08 mm). The L-705 laser beam is
designed to shoot up to 110 ft. (33 m) but has
an angular adjustment resolution of .001 in.
(0.025 mm) in 50 ft. (15 m) and is best used
under 50 ft.
Model L-706 Long Distance Laser
For long-distance applications that exceed the
range of the L-705, the L-706 Laser is equipped
with the finer angular adjustments necessary to
set the laser beam to the center of the far
reference target. It is used for applications up to
110 ft. (33 m). The finer angular adjustments
mean there is less adjustment range, which
make the L-706 difficult to use in shorter distances.
The following describes the operational features of the laser. These features include bubble level vial
orientation, micrometer values and settings, ON/OFF switches and the external battery pack.
• The ON/OFF slide switch has a lighted LED to indicate that power is ON.
•
The Pulse/Continuous switch selects the laser mode compatible with the readout/interface being
used (see Page 6 for more information about Pulse/Continuous modes and the readouts used for each
mode).
• Battery Pack connector accepts a slip-fit probe with a flexible cord.
•
Bubble level vials on the laser mounting flange are used for rotational accuracy. When the bubbles
in the level vial are centered horizontally, all micrometer adjustments (controlling laser beam angle)
will shift the laser beam vertically or horizontally with reference to the bore/target axis. If the
bubbles are not centered, any micrometer adjustment to one laser axis will change the laser beam
position in both axes. The levels also provide fixture mounting repeatability (assuming the laser is
hard-mounted to fixture).
• Micrometer controls are provided for the adjustment of the angle at which the laser beam emerges
from the precision ground, mutually concentric steel laser housing. Each laser has a NOMINAL
setting for both the V-Vertical and the H-Horizontal micrometer controls. The nominal settings are
determined at the factory and correlate to values for the laser beam when it is perpendicular to both
the 2 in. and 4 in. mounting faces. When the bubble in one of the level vials is centered, a nominal
setting of each micrometer squares the laser beam to that specific axis. For example, if the nominal
vertical setting is .120, then setting the micrometer to .120 sets the laser beam square to the vertical
axis. When a laser is mounted in the gearbox or bore adapter, vertical and horizontal micrometers
should be
set in the nominal positions
to facilitate the alignment and measurement process.
Figure 1 –
The L-706 Laser