Hitachi Koki C 12YB Instrucciones De Manejo página 4

2.2 HANDLING
This mitre-saw is small and light and, therefore, can be easily
handled by one person alone by locking the transportation
block by means of the pin 19 and by lifting the machine by
means of the control handgrip 1.
2.3 TRANSPORTATION
To transport the machine, place it in the box it was in when
purchased. Ensure it is placed in the correct position indicated
by the arrows on the packaging.
Pay careful attention to the ideograms printed on the box as
they provide all necessary information for palletization and
stacking of boxes.
Tying the load down with ropes or safety belts is recommended
during transportation to stop the load from sliding or falling.
2.4 POSITION/WORK STATION (Fig. 2-3)
Place the machine on a work bench or on a suffi ciently fl at
base/pedestal to ensure the best possible stability.
Should you wish to fi x the machine in place, use the special
holes located on the base. These are available as an
optional.
Bearing in mind ergonomic criteria, the ideal height of the
bench or of the base should be such that the base surface
or the upper work surface is between 90 and 95 cm. from
the ground (see fi g. 2).
Always ensure that there is at least 80 cm. of manoeuvring
space in all directions around the machine in order to
perform all necessary cleaning, maintenance and adjustment
operations safely with a suffi cient amount of space available
(see fi g. 3).
CAUTION: Ensure the machine is placed in a
suitable position both in terms of environmental
conditions and lighting.
Always bear in mind that general environmental
conditions are of fundamental importance to
prevent accidents.
2.5 ELECTRICAL CONNECTIONS
Check that the electrical system to which the machine is
connected is earthed in compliance with current safety
regulations and that the current socket is in perfect
condition.
The electrical system must be fi tted with a magnetothermal
protective device to safeguard all conductors from short
circuits and overload.
The selection of this device should be in line with the
following electrical specifi cations of the machine stated on
the motor.
NOTE: Your mitre-saw's electrical system is
equipped with an undervoltage relay which
automatically opens the circuit when the voltage
falls below a minimum pre-established limit and
which prevents the self-reset of machine functions
when voltage returns to normal levels.
If the machine stops involutarily, do not be
allarmed. Make sure that there has not been a
voltage failure in the electrical system.
3 ADJUSTING (Fig. 4-5-6-7-8)
WARINING: All the adjustment procedures
illustrated below must be performed when the
machine's engine is off.
3.1 ADJUSTMENT OF CUTTING ANGLE-HEAD
ROTATION (Fig. 4)
This mitre-saw can cut both to the left and to the right.
The pre-set positions are: 15° - 22°30' - 30° and 45°.
To position the machine as above, loosen knob 20, release
the machine head by pushing the lever 21 downwards and
rotate the rotary support by using the handgrip 1.
The head stops automatically each time the pointer 22
is aligned with the corresponding position etched on the
graduated scale of the rotating plate.
For all intermediate positions, once the index is in alignment
with the position on the plate, block the rotating bearing by
means of the knob 20.
CAUTION:Do not remove the Movable upper safety
guard in use.
Also, do not use with the state opened and leave
it opened.
3.2 ADJUSTMENT OF CUTTING ANGLE - HEAD
ANGLE (Fig. 5)
The machine head can be tilted to a maximum of 45° to the
left. Release the knob 24 (on the rear part of the machine)
and tilt the head until it comes to rest on the stopper at an
angle of 45° (already calibrated during testing). Retighten
the knob 24 to securely block the head in place. For all other
intermediate positions, align index 25 on the rear of the head
with the corresponding position marked on the graduated
scale 23 of the swivel joint (Fig. 16).
WARNING: During double angle cutting (rotation
plus head tilting) hold the work piece securely to
the machine using the right hand and guide the
lowering of the head with the left hand (Fig. 16).
3.3 ADJUSTMENT/INSTALLATION OF STOPPER
(STANDARD ACCESSORY) (Fig. 6)
To cut work pieces of the same length, use the stopper in
order to avoid repeating the same measuring procedure
more than once.
Screw the bar 26 into the hole in the base and block it with
the dowel 27: loosen the handwheel 28 and position the
clamp 29 at the appropriate distance from the blade; then
tighten the handwheel 28.
3.4 ADJUSTMENT HEIGHT OF UPPER WORK
SURFACE (Fig. 7)
JUST FOR CIRCULAR SAW
WARNING: When working on the upper surface, it
is absolutely necessary to install the lower safety
guard supplied 117 (Fig. 15).
To install the safety guard with the head uplifted, place it
on the angular bearings 30 of the base. Then lower the
head and block the body in this position by means of the
block pin 19.
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