Hitachi Koki G 23SWU Handling Instructions Manual Download

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English

a) Maintain a firm grip on the power tool and position

your body and arm to allow you to resist kickback
forces. Always use auxiliary handle, if provided, for
maximum control over kickback or torque reaction
during start-up.

The operator can control torque reactions or kickback
forces, if proper precautions are taken.

b) Never place your hand near the rotating accessory.

Accessory may kickback over your hand.

c) Do not position your body in the area where power

tool will move if kickback occurs.

Kickback will propel the tool in direction opposite
to the wheel’s movement at the point of snagging.

d) Use special care when working corners, sharp edges

etc. Avoid bouncing and snagging the accessory.

Corners, sharp edges or bouncing have a tendency
to snag the rotating accessory and cause loss of
control or kickback.

e) Do not attach a saw chain woodcarving blade or

toothed saw blade.

Such blades create frequent kickback and loss of
control.

SAFETY WARNINGS SPECIFIC FOR
GRINDING AND ABRASIVE CUTTING-OFF
OPERATIONS

a) Use only wheel types that are recommended for

your power tool and the specific guard designed
for the selected wheel.

Wheels for which the power tool was not designed
cannot be adequately guarded and are unsafe.

b) The guard must be securely attached to the power

tool and positioned for maximum safety, so the
least amount of wheel is exposed towards the
operator.

The guard helps to protect operator from broken
wheel fragments and accidental contact with wheel.

c) Wheels must be used only for recommended

applications. For example: do not grind with the
side of cut-off wheel.

Abrasive cut-off wheels are intended for peripheral
grinding, side forces applied to these wheels may
cause them to shatter.

d) Always use undamaged wheel flanges that are of

correct size and shape for your selected wheel.

Proper wheel flanges support the wheel thus
reducing the possibility of wheel breakage. Flanges
for cut-off wheels may be different from grinding
wheel flanges.

e) Do not use worn down wheels from larger power

tools.

Wheel intended for larger power tool is not suitable
for the higher speed of a smaller tool and may
burst.

ADDITIONAL SAFETY WARNINGS SPECIFIC
FOR ABRASIVE CUTTING-OFF OPERATIONS

a) Do not “jam” the cut-off 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 blinding of the wheel
in the cut and the possibility of kickback or wheel
breakage.

b) Do not position your body in line with and behind

the rotating wheel.

When the wheel, at the point of operation, is moving
away from your body, the possible kickback may
propel the spinning wheel and the power tool directly
at you.

c) When wheel is binding or when interrupting a cut

for any reason, switch off the power tool and hold
the power tool motionless until the wheel comes
to a complete stop. Never attempt to remove the
cut-off 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.

d) Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed and
carefully reenter the cut.

The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.

e) Support panels or any oversized workpiece to

minimize the risk of wheel pinching and kickback.

Large workpieces tend to sag under their own
weight. Supports must be placed under the
workpiece near the line of cut and near the edge
of the workpiece on both sides of the wheel.

Use extra caution when making a “pocket cut” into
existing walls or other blind areas.

The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.

GENERAL SAFETY INSTRUCTIONS FOR
GRINDERS

–

Check that speed marked on the wheel is equal to
or greater than the rated speed of the grinder;

–

Ensure that the wheel dimensions are compatible
with the grinder;

–

Abrasive wheels shall be stored and handled with
care in accordance with manufacturer’s instructions;

–

Inspect the grinding wheel before use, do not use
chipped, cracked or otherwise defective products;

–

Ensure that mounted wheels and points are fitted
in accordance with the manufacturer’s instructions;

–

Ensure that blotters are used when they are provided
with the bonded abrasive product and when they
are required;

–

Ensure that the abrasive product is correctly mounted
and tightened before use and run the tool at no-
load for 30 s in a safe position, stop immediately
if there is considerable vibration or if other defects
are detected. If this condition occurs, check the
machine to determine the cause;

–

If a guard is equipped with the tool never use the
tool without such a guard;

–

Do not use separate reducing bushings or adapters
to adapt large hole abrasive wheels;

–

For tools intended to be fitted with threaded hole
wheel, ensure that the thread in the wheel is long
enough to accept the spindle length;

–

Check that the work piece is properly supported;

–

Do not use cutting off wheel for side grinding;

–

Ensure that sparks resulting from use do not create
a hazard e.g. do not hit persons, or ignite flammable
substances;