Bedienungsanleitung Makita GA7050R (Seite 10 von 88) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch)

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Operation with wire cup brush (optional

accessory)

CAUTION:

• Check operation of brush by running tool with no load,

insuring that no one is in front of or in line with brush.

• Do not use brush that is damaged, or which is out of

balance. Use of damaged brush could increase

potential for injury from contact with broken brush

wires. (Fig. 17)

Unplug tool and place it upside down allowing easy

access to spindle. Remove any accessories on spindle.

Mount wire cup brush onto spindle and tighten with

supplied wrench. When using brush, avoid applying too

much pressure which causes over bending of wires,

leading to premature breakage.

Operation with wire wheel brush (optional

accessory)

CAUTION:

• Check operation of wire wheel brush by running tool

with no load, insuring that no one is in front of or in line

with the wire wheel brush.

• Do not use wire wheel brush that is damaged, or which

is out of balance. Use of damaged wire wheel brush

could increase potential for injury from contact with

broken wires.

• ALWAYS use guard with wire wheel brushes, assuring

diameter of wheel fits inside guard. Wheel can shatter

during use and guard helps to reduce chances of

personal injury. (Fig. 18)

Unplug tool and place it upside down allowing easy

access to spindle. Remove any accessories on spindle.

Thread wire wheel brush onto spindle and tighten with the

wrenches.

When using wire wheel brush, avoid applying too much

pressure which causes over bending of wires, leading to

premature breakage.

Operation with abrasive cut-off/diamond

wheel (optional accessory)

WARNING:

• When using an abrasive cut-off/diamond wheel, be

sure to use only the special wheel guard designed for

use with cut-off wheels. (In European countries, when

using a diamond wheel, the ordinary guard can be

used.)

• NEVER use cut-off wheel for side grinding.

• 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, wheel breakage and

overheating of the motor may occur.

• Do not start the cutting operation in the workpiece. Let

the wheel reach full speed and carefully enter into the

cut moving the tool forward over the workpiece surface.

The wheel may bind, walk up or kickback if the power

tool is started in the workpiece.

• During cutting operations, never change the angle of

the wheel. Placing side pressure on the cut-off wheel

(as in grinding) will cause the wheel to crack and break,

causing serious personal injury.

• A diamond wheel shall be operated perpendicular to

the material being cut.

Mount the inner flange onto the spindle. Fit the wheel/disc

on the inner flange and screw the lock nut onto the

spindle. (Fig. 19)

When installing a diamond wheel or a abrasive cut-off

wheel with its 7mm or more thick wheel body, mount the

lock nut with its pilot circular part (protrusion) for wheel

bore facing the wheel.

For Australia and New Zealand

Installing or removing abrasive cut-off

wheel/diamond wheel (optional

accessory) (Fig. 20)

MAINTENANCE

CAUTION:

• Always be sure that the tool is switched off and

unplugged before attempting to perform inspection or

maintenance.

• Never use gasoline, benzine, thinner, alcohol or the

like. Discoloration, deformation or cracks may result.

The tool and its air vents have to be kept clean. Regularly

clean the tool’s air vents or whenever the vents start to

become obstructed. (Fig. 21)

Replacing carbon brushes (Fig. 22)

When the resin insulating tip inside the carbon brush is

exposed to contact the commutator, it will automatically

shut off the motor. When this occurs, both carbon brushes

should be replaced. Keep the carbon brushes clean and

free to slip in the holders. Both carbon brushes should be

replaced at the same time. Use only identical carbon

brushes.

Use a screwdriver to remove the brush holder caps. Take

out the worn carbon brushes, insert the new ones and

secure the brush holder caps. (Fig. 23)

To maintain product SAFETY and RELIABILITY, repairs,

any other maintenance or adjustment should be

performed by Makita Authorized Service Centers, always

using Makita replacement parts.

OPTIONAL ACCESSORIES

CAUTION:

• These accessories or attachments are recommended

for use with your Makita tool specified in this manual.

The use of any other accessories or attachments might

present a risk of injury to persons. Only use accessory

or attachment for its stated purpose.

If you need any assistance for more details regarding

these accessories, ask your local Makita Service Center.

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