Hitachi C 10FSB Technical Data And Service Manual page 65

Next, insert a 2.5-mm hex. bar wrench into the inlet and
3
adjust the two Seal Lock Hex. Socket Set Screws M5 x 6
[95] so that laser beam is applied to the entire cutting
surface. (Before adjustment of the Laser Marker [99]
using a 2.5-mm hex. bar wrench, remove the Caution
Label (J) [103], Base Rubber [85] and the tape adhered
to the inlet.)
If the laser line gets out of the cutting surface during the
laser line adjustment using the two Seal Lock Hex.
Socket Set Screws M5 x 6 [95], turn the Adjuster [81] to
shift the laser line onto the cutting surface, top edge or
rear edge of the cutting surface then adjust the accuracy
of the laser line. (Repeat this operation 3 or 4 times
depending on the adjusting conditions of the laser
marker.) Refer to the above "(1) Construction of laser
marker and functions of each component" for the relation
between the two Seal Lock Hex. Socket Set Screws
M5 x 6 [95] and the laser line.
To check the accuracy of the Laser Marker [99], move the
4
Laser Marker [99] horizontally using the Adjuster [81]
again and check that the laser beam is applied to the
entire cutting surface. If the laser beam is applied to the
cutting surface in parallel, the fine fuzz reflects the laser
beam and the entire cutting surface becomes bright.
5 Make a right-angle ink line on the workpieces of 20 mm
in height and 150 mm in width and 60 mm in height and
150 mm in width respectively. Adjust the laser marker
and perform cutting. If the ink line matches the cutting
position, the accuracy adjustment is completed. (Visually
check that the laser marker accuracy is 0.35/100 or less
for both the squareness with the base surface and the
squareness with the fence surface.)
Laser line
Top edge of the
cutting surface
Turn the adjuster to shift the laser line onto
the cutting surface, top edge or rear edge of
the cutting surface.
Adjust the two Seal Lock Hex. Socket Set
Screws M5 x 6 [95] or the adjuster to apply
laser beam to the entire cutting surface.
--- 61 ---
Rear edge of
the cutting
surface
Cutting surface
Fig. 79-2
Laser line
Cutting surface
Fig. 79-3
Laser line