Hitachi Koki C 12RSH2, Инструкция по эксплуатации

Страница: 21 / 84

English
21
WARNING
○ For slide cutting, follow the procedures.
Forward slide cutting (toward the operator) is very
dangerous because the saw blade could kick upward
from the workpiece. Therefore, always slide the handle
away from the operator.
○ Always return the carriage to the full rear position after
each crosscut operation in order to reduce the risk of
injury.
○ 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.
12. 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. 23 ).
(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.
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.
13. Bevel cutting procedures (Fig. 24)
(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 (A) towards the rear.
The clamp lever adopts a latchet system. When
contacting the work bench and the main body, pull
the clamp lever in the direction of the arrow mark as
illustrated in Fig. 24 , and change the direction of the
clamp lever.
(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-o ff portion will come to rest
on the right or left side of the saw blade. Always turn the
power o ff 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-o ff 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.
CAUTION
When cutting a workpiece of 75 mm height in the left 45°
bevel cutting position or a workpiece of 50 mm height in
the right 45° bevel cutting position, adjust the lower limit
position of the motor head so that the gap between the
lower edge of the motor head and the workpiece will be 2
to 3 mm at the lower limit position (refer to “11. Checking
the saw blade lower limit position” on page 18).
14. Compound cutting procedures
Compound cutting can be performed by following the
instructions in 12 and 13 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, slide the sub-fence (B) outward, and engage in
the cutting operation.
In case of compound cutting (angle + bevel) by right
bevel, remove the sub-fence (A), and engage in the
cutting operation.
15. 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 × 1300 mm, or
180 mm × 25 mm × 2000 mm
16. Installing the holders … (Optional accessory)
The holders help keep longer workpieces stable and in
place during the cutting operation.
(1) As indicated in Fig. 25 , 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, fi rmly tighten the 6 mm wing nut and
fasten the holder with the 6 mm knob bolt (optional
accessory). If the length of Height Adjustment Bolt 6 mm
is insu ffi cient, 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.
17. Stopper for precision cutting … (Stopper and
holder are optional accessory)
The stopper facilitates continuous precision cutting in
lengths of 285 mm to 450 mm.
To install the stopper, attach it to the holder with the
6 mm knob bolt as shown in Fig. 26 .
18. Con fi rmation for use Crown molding vise, Crown
molding Stopper (L) and (R) (Optional accessory)
(1) Crown molding Stopper (L) and (R) (optional
accessories) allow easier cuts of crown molding without
tilting the saw blade. lnstall them in the base both-sides
side to be shown in Fig. 27 . After inserting tighten the
6 mm knob bolts to secure the Crown molding Stoppers.
(2) The crown molding vise (B) (Optional accessory) can be
mounted on either the left fence (Fence (B)) or the right
fence (Fence (A)). lt can unite with the slope of the crown
molding and vice can be pressed down.
Then turn the upper knob, as necessary, to securely
attach the crown molding in position. To raise or lower the
vise assembly, fi rst loosen the hex. socket set screw.
After adjusting the height, fi rmly tighten the 6 mm wing
bolt; then turn the upper knob, as necessary, to securely
attach the the crown molding in position ( Fig. 28 ).
Position crown molding with its WALL CONTACT EDGE
against the guide fence and its CEILING CONTACT
EDGE against the Crown molding Stoppers as shown in
Fig. 28 . Adjust the Crown molding Stoppers according
to the size of the crown molding.
Tighten the 6 mm wing bolt to secure the Crown molding
Stoppers. Refer to the lower table for the miter angle.
Use the sub fence (A) to secure the crown molding more
fi rmly ( Fig. 11 ).
000Book̲C12RSH2̲ASIA.indb 21 000Book̲C12RSH2̲ASIA.indb 21 2015/11/13 16:09:46 2015/11/13 16:09:46