Makita 4100NH2 Manuel d'instruction - Page 4

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Use only diamond cut-off wheels for your

power tool. Just because an accessory can be

attached to your power tool, it does not assure

safe operation.

The rated speed of the accessory must be at

least equal to the maximum speed marked on

the power tool. Accessories running faster than

their rated speed can break and fly apart.

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 diameter for your selected wheel.

Proper wheel flanges support the wheel thus

reducing the possibility of wheel breakage.

The outside diameter and the thickness of your

accessory must be within the capacity rating of

your power tool. Incorrectly sized accessories

cannot be adequately guarded or controlled.

The arbour size of wheels and flanges must

properly fit the spindle of the power tool.

Wheels and flanges with arbour holes that do not

match the mounting hardware of the power tool

will run out of balance, vibrate excessively and

may cause loss of control.

Do not use damaged wheels. Before each use,

inspect the wheels for chips and cracks. If

power tool or wheel is dropped, inspect for

damage or install an undamaged wheel. After

inspecting and installing the wheel, position

yourself and bystanders away from the plane

of the rotating wheel and run the power tool at

maximum no load speed for one minute.

Damaged wheels will normally break apart during

this test time.

Wear

personal

Depending on application, use face shield,

safety

goggles

appropriate,

wear

protectors, gloves and shop apron capable of

stopping

small

fragments. The eye protection must be capable

of stopping flying debris generated by various

operations. The dust mask or respirator must be

capable of filtrating particles generated by your

operation. Prolonged exposure to high intensity

noise may cause hearing loss.

10. Keep bystanders a safe distance away from

work area. Anyone entering the work area

must wear personal protective equipment.

Fragments of workpiece or of a broken wheel

may fly away and cause injury beyond immediate

area of operation.

protective

equipment.

safety

glasses.

dust

mask,

hearing

abrasive

workpiece

11.

Hold the power tool by insulated gripping

surfaces only, when performing an operation

where the cutting accessory may contact

hidden wiring or its own cord. Cutting

accessory contacting a "live" wire may make

exposed metal parts of the power tool "live" and

could give the operator an electric shock.

12. Position the cord clear of the spinning

accessory. If you lose control, the cord may be

cut or snagged and your hand or arm may be

pulled into the spinning wheel.

13. Never lay the power tool down until the

accessory has come to a complete stop. The

spinning wheel may grab the surface and pull the

power tool out of your control.

14. Do not run the power tool while carrying it at

your side. Accidental contact with the spinning

accessory could snag your clothing, pulling the

accessory into your body.

15. Regularly clean the power tool's air vents. The

motor's fan will draw the dust inside the housing

and excessive accumulation of powdered metal

may cause electrical hazards.

16. Do not operate the power tool near flammable

materials. Sparks could ignite these materials.

17. Do not use accessories that require liquid

coolants. Using water or other liquid coolants

may result in electrocution or shock.

Kickback and related warnings

Kickback is a sudden reaction to a pinched or snagged

rotating wheel. Pinching or snagging causes rapid

stalling of the rotating wheel which in turn causes the

uncontrolled power tool 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 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.

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.