Hitachi C10FSH Handling Instructions Manual page 46

English
(1) Light up the laser marker and make a groove of about 5
mm deep on the workpiece that is about 20 mm in height
and 150 mm in width. Hold the grooved workpiece by
vise as it is and do not move it. For grooving work, refer
to "22. Groove cutting procedures".
(2) Then, turn the adjuster and shift the laser line. (If you
turn the adjuster clockwise, the laser line will shift to
the right and if you turn it counterclockwise, the laser
line will shift to the left.) When you work with the ink
line aligned with the left side of the saw blade, align
the laser line with the left end of the groove (Fig. 15).
When you align it with the right side of the saw blade,
align the laser line with the right side of the groove.
(3) After adjusting the position of the laser line, draw a
right-angle ink line on the workpiece and align the
ink line with the laser line. When aligning the ink line,
slide the workpiece little by little and secure it by vise
at a position where the laser line overlaps with the
ink line. Work on the grooving again and check the
position of the laser line. If you wish to change the
laser line's position, make adjustments again
following the steps from (1) to (3).
WARNING
Make sure before plugging the power plug into the
receptacle that the main body and the laser marker
are turned off.
Exercise utmost caution in handling a switch trigger
for the position adjustment of the laser line, as the
power plug is plugged into the receptacle during
operation.
If the switch trigger is pulled inadvertently, the saw
blade can rotate and result in unexpected accidents.
Do not remove the laser marker to be used for other
purposes.
CAUTION (Fig. 13)
Laser radiation - Do not stare into beam.
Laser radiation on work table. Do not stare into beam.
If your eye is exposed directly to the laser beam, it
can be hurt.
Do not dismantle it.
Do not give strong impact to the laser marker (main
body of tool); otherwise, the position of a laser line
can go out of order, resulting in the damage of the
laser marker as well as a shortened service life.
Keep the laser marker lit only during a cutting
operation. Prolonged lighting of the laser marker can
result in a shortened service life.
Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.
NOTE
In outdoor or near-the-window operations, it may
become dificult to observe the laser line due to the
sunlight. Under such circumstances, move to a place
that is not directly under the sunlight and engage in
the operation.
Do not tug on the cord behind the motor head or hook
your finger, wood and the like around it; otherwise,
the cord may come off and the laser marker may not
be lit up.
12. Cutting operation
(1) After turning on the switch and checking that the saw
blade is rotating at maximum speed, slowly push
down the handle while holding down the lever (A)
and bring the saw blade in the vicinity of the material
to be cut.
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(2) Once the saw blade contacts the workpiece, push the
handle down gradually to cut into the workpiece.
(3) After cutting the workpiece to the desired depth, turn
the power tool OFF and let the saw blade stop
completely before raising the handle from the
workpiece to return it to the full retract position.
CAUTION
For maximum dimensions for cutting, refer to
"SPECIFICATIONS" table.
Increased pressure on the handle will not increase the
cutting speed. On the contrary, too much pressure
may result in overload of the motor and/or decreased
cutting efficiency.
Confirm that the trigger switch is turned OFF and the
power plug has been removed from the receptacle
whenever the tool is not in use.
Always turn the power off and let the saw blade stop
completely before raising the handle from the
workpiece. If the handle is raised while the saw blade
is still rotating, the cut-off piece may become jammed
against the saw blade causing fragments to scatter
about dangerously.
Every time one cutting of deep-cutting operation is
finished, turn the switch off, and check that the saw
blade has stopped. Then raise the handle, and return
it to the full retract position.
Be absolutely sure to remove the cut material from
the top of the turntable, and then proceed to the next
step.
13. Cutting narrow workpieces (Press cutting)
Slide the hinge down to holder (A), then tighten the
slide securing knob (see Fig. 2). Lower the handle to
cut the workpiece. Using the power tool this way will
permit cutting of workpieces of up to 85 mm square.
14. Cutting wide workpieces (Slide cutting)
Loosen the slide securing knob (see Fig. 2), grip the
handle and slide the saw blade forward. Then press
down on the handle and slide the saw blade back to
cut the workpiece. This facilitates cutting of
workpieces of up to 312 mm in width.
WARNING
Never put your hand on the side handle during the
cutting operation because the saw blade comes close
to the side handle when the motor head is lowered.
15. Miter cutting procedures
(1) Loosen the side handle and pull up the lever for angle
stoppers. Then, adjust the turntable until the indicator
aligns with desired setting on the miter scale (Fig. 17).
(2) Re-tighten the side handle to secure the turntable in
the desired position.
(3) The miter scale indicates both the cutting angle on
the angle scale and the gradient on the grade scale.
(4) The gradient, which is the ratio of the height to the
base of the triangular section to be removed, may be
used for setting the miter scale instead of the cutting
angle, if desired.
(5) Therefore, to cut a workpiece at a grade of 2/10, set
the indicator to position.
NOTE
Positive stops are provided at the right and left of the
0° center setting, at 15°, 22.5°, 30° and 45° settings.
Check that the miter scale and the tip of the indicator
are properly aligned.
Operation of the saw with the miter scale and indicator
out of alignment, or with the side handle not properly
tightened, will result in poor cutting precision.