Инструкция углошлифовальная машина (УШМ) Bort BWS-20Li-SR

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Бренд: Bort

Страница 14 документа Углошлифовальная машина (УШМ) Bort BWS-20Li-SR. Раздел: Углошлифовальные машины (УШМ). Бренд: Bort.

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cessory may kickback over your hand.

• Switch off the power tool immediately when the tool
insert jams. Be prepared for high reaction torque
that can cause kickback. The tool insert jams when:

the
power
tool
is
subject
to
overload
– it becomes wedged in the workpiece.

• 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.

• Hold the machine with a firm grip. High reaction torque
can briefly occur while driving in and loosening screws.

• 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.

• When working with the machine, always hold it firmly
with both hands and provide for a secure stance. The
power tool is guided more secure with both hands.

• Do not attach a saw chain woodcarving blade or
toothed saw blade. Such blades create frequent kick-
back and loss of control.

• Secure the workpiece. A workpiece clamped with
clamping devices or in a vice is held more secure than
by hand.

• Do not open the battery. Danger of short-circuiting.

Safety
warnings
specific
for
Grinding
and Abrasive Cutting-Off operations

• Protect the battery against heat, e. g. , against continu-
ous intense sunlight, fire, water, and moisture. Danger
of explosion.

• Use only wheel types that are recommended for your
power tool and the specific guard designed for the se-
lected wheel. Wheels for which the power tool was not
designed cannot be adequately guarded and are unsafe.

• In case of damage and improper use of the battery, va-
pours may be emitted. Ventilate the area and seek med-
ical help in case of complaints. The vapours can irritate
the respiratory system.

• Use the battery only in conjunction with your power
tool. This measure alone protects the battery against
dangerous overload.

• The grinding surface of the centre depressed wheels
must be mounted below the plane of the guard lip. An
improperly mounted wheel that projects through the
plane of the guard lip cannot be adequately protected.

• The battery can be damaged by pointed objects such as
nails or screwdrivers or by force applied externally. An
internal short circuit can occur and the battery can burn,
smoke, explode or overheat.

• 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,
accidental contact with wheel and sparks that could ig-
nite clothing.

Kickback and related warnings

• Wheels must be used only for recommended applica-
tions. For example: do not grind with the side of the
cut-off wheel. Abrasive cut-off wheels are intended for
peripheral grinding; side forces applied to these wheels
may cause them to shatter.

• Always use undamaged wheel flanges that are of cor-
rect 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.

• Do not use worn down reinforced wheels from larger
power tools. Wheels intended for larger power tools are
not suitable for the higher speed of a smaller tool and
may burst.

• Kickback is a sudden reaction to a pinched or snagged
rotating wheel, backing pad, brush or any other acces-
sory. Pinching or snagging causes rapid stalling of the
rotating accessory which in turn causes the uncon-
trolled power tool to be forced in the direction opposite
of the accessory’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 enter-
ing 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 opera-
tor, depending on direction of the wheel’s movement at
the point of pinching. Abrasive wheels may also break
under these conditions. Kickback is the result of power
tool misuse and/or incorrect operating procedures or
conditions and can be avoided by taking proper precau-
tions as given below.

Additional safety warnings specific for abrasive
cutting off operations

• 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.

• Do not “jam” the cut-off wheel or apply excessive pres-
sure. Do not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and sus-
ceptibility to twisting or binding of the wheel in the cut
and the possibility of kickback or wheel breakage.

• Never place your hand near the rotating accessory. Ac-

• Do not position your body in line with and behind the

14

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