HIKOKI CC 14ST - Operation and Maintenance Procedures; Cutting and Wheel Handling; Workpiece and Adjustment Guidance

English
9
9. When replacing the cut-off wheel, ensure that the
replacement cutting wheel has a designed circumferential
speed in excess of 4800 m/min.
10. Ensure that the bar spanner used for tightening or
removing the cut-off wheel is not attached to the machine.
11. Check that the work piece is properly supported.
Ensure that the material is securely fastened with the
vise. If it is not, a serious accident could be caused if the
material comes loose or the cut-off wheel breaks during
operation.
12. Ensure that the abrasive wheel is correctly fi tted and
tightened before use and run the machine at no-load for
30 seconds in safe position, stop immediately if there is
a considerable vibration or if other defects are detected.
If this condition occurs, check the machine to determine
the cause.
13. Rotate the cut-off wheel to inspect any facial defl ection. A
heavy defl ection will cause the cut-off wheel to shift.
14. Ensure that ventilation openings are kept clear when
working in dusty conditions. If it should become
necessary to clear dust, fi rst disconnect the machine
from the mains supply.
CUTTING PROCEDURES
CAUTION
It is dangerous to remove or install the workpiece while the
cut-off wheel turning.
1. Operating the switch
Power will be turned on when the switch is pulled, and
turned off when released. (Fig.2)
2. Cutting
(1) Rotate the cut-off wheel, gently press down the handle,
and bring the cut-off wheel close to the cutting material.
(2) When the cut-off wheel contacts the cutting material,
gently press down the handle further and start cutting.
(3) When cutting (or designated slotting) is completed, raise
the handle and restore it to its original position.
(4) At the termination of each cutting process, turn OFF the
switch to stop rotation and proceed with the subsequent
cutting job.
CAUTION
It does not necessarily cut rapidly when putting more
force on the handle.
Too much force on the handle will put excessive pressure
on the motor and reduce its capacity.
Do not fail to switch OFF the switch after operation is
completed and pull the plug out.
MOUNTING AND DISMOUNTING THE CUT-OFF
WHEEL
CAUTION
Use gloves when handling the cut-off wheels.
1. Dismounting the cut-off wheel (Fig. 3 and 4)
(1) Raise lower gurd (A) and lower gurd (B).
Press down on the stopper pin to bring it into contact with
the wheel washer.
Rotate the cut-off wheel, pass the stopper pin through the
hole on the wheel washer and then remove the M10 bolt
with the hexagonal bar wrench supplied.
(2) Remove the bolt, washer (A), and the wheel washer and
detach the cut-off wheel. (Fig. 4)
CAUTION
Do not remove the O-ring or sleeve from the cut-off wheel
spindle.
2. Mounting the cut-off wheel
Throughly remove dust from the wheel washers and
bolt then mount the wheel by following the dismounting
procedures in reverse order. Return lower gurd (A) and
lower gurd (B) to its original position.
CAUTION
Confi rm that the stopper which was used for installation
and removal of the cut-off wheel has returned to the
retract position.
HOW TO OPERATE
1. Procedure for fi xing the cutting material (Fig. 5 and
6)
Place the workpiece material between vise (A) and vise
(B), raise the clutch and push the screw handle to bring
vise (A) lightly into contact with the workpiece material,
as shown in Fig. 5.
Then, turn the clutch down, and securely fi x the workpiece
material in position by turning the screw handle. When
the cutting job is completed, turn the screw handle 2 or 3
times to loosen the vise (A), and remove the workpiece
material, as shown in Fig. 6.
CAUTION
Never remove or install a workpiece material while the
cut-off wheel is rotating, to avoid personal injury.
2. Cutting at angles (Fig. 7)
(1) The machine permits cutting at angles of 0° or 45°.
(2) Loosen the two M10 hexagon socket head bolts on the
vice (B), then set the working surface on the vice-jaw at
any angles of 0°, 30°, or 45°. Upon completion of setting,
securely tighten the two 10 mm bolts.
3. Moving the stationary vise-jaw (Fig. 8)
The vise opening is set at the maximum of 165 mm when
shipped from the factory. In case an opening of more
than 165 mm is required, move the vise to the position
shown by the chain line after unscrewing the two bolts.
The maximum opening can be set in two steps 200 mm
and 235 mm. When the cutting material is excessively
wide, the vise can be eff ectively used by repositioning
the stationary side of the vise-jaws.
4. Cutting long workpiece materials (Fig.9)
Make sure you place both ends of long workpiece
materials on blocks that are the same height as the base
to stabilize it prior to beginning work.
5. How to use square block (Fig. 10)
When the cut-off wheel has a reduced outer diameter,
insert between the vise (A) and (B) a square block slightly
smaller than the dimension of workpiece being cut to use
the cut-off wheel economically.
6. Adjusting the cutting depth (Fig. 11)
When the cut-off wheel has a reduced outer diameter,
change the height of the stopper bolt to adjust the cutting
depth. Adjustments are made by loosening the lock nut
and rotating the stopper bolt. When fi nished, retighten
the lock nut to fi x the stopper bolt in place.
It is possible to eradicate splinters depending on the
material.
CAUTION
○ Make sure the height of the stopper bolt is readjusted
when the cut-off wheel is replaced.
○ If the stopper bolt is too low, there is a chance that the
cut-off wheel will cut into the base.
7. Adjusting the spark sheet (Fig.12)
Loosen the screw holding the spark sheet in place with a
phillips screwdriver to adjust the angle.
Change the angle in accordance with the prevalent
environment and the work required to adjust the direction
in which the sparks fl y.
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