Hitachi C 8FSHE Handling Instructions Manual page 53

14. Cutting large workpieces
There may be case when a complete cutting cannot
be done depending on the height of workpiece. In this
case, mount an auxiliary board with the 6mm flat head
screws and the 6mm nuts using the 7mm holes on
the fence surface (two holes on each side). (Fig. 17)
Refer to "SPECIFICATIONS" for the thickness of the
auxiliary board.
15. Cutting wide workpieces (Slide cutting)
Loosen the slide securing knob (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.
16. 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. 18).
(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°, 31.6° 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.
17. Bevel cutting procedures (Fig. 19)
CAUTION
Ensure that the clamp lever is securely fixed when
beveling.
Please do this if the length of the material being cut
off is more than 25 mm long. Sometimes cutting
cannot be accomplished because the saw blade will
catch on the inside of the lower guard.
(1) Loosen the clamp lever and bevel the saw blade to
the left or to the right. When tilting the motor head to
the right pull the set pin towards the rear.
NOTE
Loosen the clamp lever, tilt the main unit to the left
and then pull the set pin to enable 48-degree cuts.
Loosen the clamp lever and slant to the left a little at a
time while pushing the set pin into the main unit. At
this time, the set pin will enter one step and fit into
the 30° left slant and 33.9° left slant setting slots.
With the set pin in the slot as described above, setting
to the 30° left slant position is possible by pushing to
the right side.
Also, with the set pin in the slot as described above,
setting to the 33.9° left slant position is possible by
pushing to the left side.
(2) Adjust the bevel angle to the desired setting while
watching the bevel angle scale and indicator, then
secure the clamp lever.
WARNING
When the workpiece is secured on the left or right side
of the blade, the short cut-off portion will come to rest
on the right or left side of the saw blade. 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.
When stopping the bevel cutting operation halfway,
start cutting after pulling back the motor head to the
initial position.
Starting from halfway, without pulling back, causes
the lower guard to be caught in the cutting groove of
the workpiece and to contact the saw blade.
18. Compound cutting procedures
Compound cutting can be performed by following the
instructions in 16 and 17 above. For maximum
dimensions for compound cutting, refer to
"SPECIFICATIONS" table.
CAUTION
Always secure the workpiece with the right or left hand
and cut it by sliding the round portion of the saw
backwards with the left hand.
It is very dangerous to rotate the turntable to the left
during compound cutting because the saw blade may
come into contact with the hand that is securing the
workpiece.
In case of compound cutting (angle + bevel) by left
bevel, turn the sub-fence (optional accessory)
counterclockwise, and engage in the cutting operation.
19. Cutting long materials
When cutting long materials, use an auxiliary platform
which is the same height as the holder (optional
accessory) and base of the special auxiliary
equipment.
Capacity: wooden material (W × H × L)
300 mm × 45 mm × 1050 mm, or
180 mm × 25 mm × 1600 mm
20. Installing the holders ... (Optional accessory)
The holders help keep longer workpieces stable and
in place during the cutting operation.
(1) As indicated in Fig. 20, use a steel square for aligning
the upper edge of the holders with the base surface.
Loosen the 6 mm wing nut. Turn a height adjustment
bolt 6 mm, and adjust the height of the holder.
(2) After adjustment, firmly tighten the wing nut and
fasten the holder with the 6 mm knob bolt (optional
accessory). If the length of Height Adjustment Bolt 6
mm is insufficient, spread a thin plate beneath. Make
sure the end of Height Adjustment Bolt 6 mm does
not protrude from the holder.
CAUTION
When transporting or carrying the tool, do not grasp
the holder.
There is the danger of the holder slipping out of the
base. Grasp the handle instead of the holder.
21. Stopper for precision cutting ... (Stopper and holder
are optional accessory)
The stopper facilitates continuous precision cutting
in lengths of 280 mm to 450 mm.
To install the stopper, attach it to the holder with the
6 mm knob bolt as shown in Fig. 21.
English
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