Ryobi EHT150V Manuel d'utilisateur télécharger pdf (Page 7)

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Kickback and related warnings

Kickback is a sudden reaction to a pinched or snagged

rotating wheel, backing pad, brush or any other accessory.

Pinching or snagging causes rapid stalling of the rotating

accessory which in turn causes the uncontrolled 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 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 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 precautions as given below.

 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.

 Never place your hand near the rotating accessory.

Accessory may kickback over your hand.

 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.

 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.

 Do not attach a saw chain woodcarving blade or

toothed saw blade. Such blades create frequent

kickback and loss of control.

Safety warnings speciﬁ c for grinding operations:

 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 unsafe.

 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 and sparks that could ignite clothing.

 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.

 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.

 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.

SYMBOL

Safety Alert

V Volts

Hertz

Alternating Current

Watts

J Joules

No-load speed

min

Revolutions or reciprocations per minute

CE Conformity

Double insulation

Wear ear protection

Wear eye protection

Please read the instructions carefully before

starting the machine.

Waste electrical products should not be

disposed of with household waste. Please

recycle where facilities exist. Check with your

Local Authority or retailer for recycling advice.

ELECTRICAL

DOUBLE INSULATION

Double insulation is a concept in safety in electric power

tools, which eliminates the need for the usual three-wire

grounded power cord. All exposed metal parts are isolated

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Ryobi EHT150V Manuel d'utilisateur Page 7

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