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English
9
WARNING
Fuel is highly
fl
ammable and its fumes should not be
inhaled. Be particularly careful when handling the
machine as the sparks produced when cutting metal can
easily ignite any fuel spillage.
Cutting safety
○
Keep bystanders at a safe distance, away from the
work area. Anyone entering the work area must wear
personal protective equipment. Flying fragments from
the workpiece or the cut-o
ff
wheel may cause injury.
Children, other unauthorized persons and animals must
remain well away from the work area.
○
Hold the machine
fi
rmly with the right hand on the rear
handle and the left hand on the front handle.
○
Keep
fi
rm footing and balance. Do not over-reach.
○
Keep all parts of your body away from the mu
ffl
er and
cutting attachment when the engine is running.
○
Make sure to check the work area for any hidden
hazards such as water or gas pipes, electrical cables
and
fl
ammable substances.
○
Never place the machine on the ground when running.
○
Always ensure that the engine is shut o
ff
and any cutting
attachments have completely stopped before clearing
debris from the cutting attachment.
○
Always carry a
fi
rst-aid kit when operating any power
equipment.
○
The mu
ffl
er gets very hot during and after use. This also
applies during idling.
Be aware of the
fi
re hazard, especially when working
near
fl
ammable substances and/or vapours.
WARNING
○
Exhaust gases from the engine are hot and may contain
sparks which can cause a
fi
re.
Also, sparks are generated when cutting metal with this
machine.
Never use the machine where
fl
ammable substances
and gases are present.
○
Sparks generated from cutting operations can cause
fi
res. Always have adequate
fi
re extinguishing equipment
available.
○
When relocating to a new work area, be sure to shut o
ff
the machine and ensure that all cutting attachments are
stopped.
○
Always ensure that the engine is shut o
ff
and any cutting
attachments have completely stopped before moving.
Gyroscopic forces occur when moving while the engine
is operating and the cut-o
ff
wheel is rotating. This may
cause you to lose control of the machine.
○
Never cut materials that consist of asbestos.
○
Never leave the engine running while unattended
(e.g. on the ground).
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged
rotating wheel. Pinching or snagging causes sudden stalling
of the rotating wheel which in turn causes the machine to
be forced in the direction opposite of the wheel's rotation at
the point of the binding. For example, if an abrasive wheel is
snagged or pinched by the workpiece, the edge of the wheel
that is entering into the pinch point can dig into the surface of
the material causing the wheel to climb out or kick out. The
wheel may either jump toward or away from the operator,
depending on the direction of the wheel's movement at the
point of pinching. Abrasive wheels may also break under
these conditions.
Either of these reactions may cause you to lose control of the
machine which could result in serious personal injury.
Kickback is the result of cut-o
ff
machine misuse and/or
incorrect operating procedures or conditions that can be
avoided by taking proper precautions as given below.
○
Kickback occurs when the upper angle of the cut-o
ff
wheel is used or touches an object when the cut-o
ff
wheel is running. Pay special attention not to touch the
upper angle of the cut-o
ff
wheel to any object. (
Fig. 2,
Fig. 3
)
○
Use special care when working corners, sharp edges
etc. Avoid bouncing and snagging the cut-o
ff
wheel.
Corners, sharp edges or bouncing have a tendency to
snag the rotating wheel and cause loss of control or
kickback. (
Fig. 4
)
○
Do not use cut-o
ff
wheels other than those approved or
recommended by the manufacturer. Never use blades
designed for cutting wood. Failure to comply could result
in personal accidents or injury.
○
Do not jam the wheel or apply excessive pressure. Do
not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the cut
and the possibility of kickback or wheel breakage.
○
If the wheel binds or a cut is interrupted for any reason,
stop the engine and hold the machine motionless until
the wheel comes to a complete stop. Never attempt
to remove the wheel from the cut while the wheel is in
motion otherwise kickback may occur. Investigate and
take corrective action to eliminate the cause of wheel
binding.
○
Do not restart the cutting operation with the wheel in the
workpiece. After allowing the wheel to reach full speed,
carefully re-enter the cut. The wheel may bind, walk up or
kickback if the power tool is restarted in the workpiece.
○
Provide supports for panels or any oversized workpiece
to minimize risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece so that
the cutting surface to open. (
Fig. 5
)
Maintenance safety
○
Maintain the machine according to recommended
procedures.
○
Disconnect the spark plug before performing
maintenance except for carburetor adjustments.
○
Keep others away when making carburetor adjustments.
○
Use only genuine HITACHI replacement parts as
recommended by the manufacturer.
CAUTION
Do not disassemble the recoil starter. There is a
possibility of personal injury with recoil spring.
WARNING
Improper maintenance could result in serious engine
damage or in serious personal injury.
Transport and storage
○
Carry the machine by hand with the engine stopped and
the mu
ffl
er away from your body.
○
Allow the engine to cool, empty the fuel tank and
carburetor, and secure the machine before storing or
transporting.
○
Store machine out of the reach of children.
○
Clean and maintain the machine carefully and store it in
a dry place.
○
Make sure stop switch is o
ff
when transporting or storing.
○
Do not store the cut-o
ff
wheels in a wet or frost condition.
Pay special attention about the abrasive wheel.
There is a risk of bursting to using the abrasive wheel
wetted.
If situations occur which are not covered in this manual, take
care and use common sense. Contact Hitachi Authorized
Service Centers if you need assistance.
0000Book̲CM75EAP.indb 9
0000Book̲CM75EAP.indb 9
2014/07/22 12:31:47
2014/07/22 12:31:47