Bedienungsanleitung Makita HR2320T (Seite 10 von 76) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Türkisch)

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Installing or removing the dust cup (optional

accessory)

Before installing the dust cup, remove the bit from the

tool if installed on the tool. Install the dust cup (optional

accessory) on the tool so that the symbol on the dust

cup is aligned with the grooves in the tool. (Fig. 23)

To remove the dust cup, pull the chuck cover in the

direction as shown in the figure and with the chuck cover

pulled take the bit out of the tool. (Fig. 24)

And then grab the attachment at the foot of dust cup and

take it out. (Fig. 25)

NOTE:

• When installing or removing the dust cup, the cap may

come off the dust cup. At that time, proceed as follows.

Remove the bellows from the attachment and fit the

cap from the side shown in the figure with its flat side

facing upward so that the groove in the cap fits in the

inside periphery of the attachment. Finally, mount the

bellows that has been removed. (Fig. 26, 27 & 28)

NOTE:

• If you connect a vacuum cleaner to your hammer,

cleaner operations can be performed. Dust cap needs

to be removed from the dust cup before the connection.

(Fig. 29)

OPERATION

CAUTION:

• Always use the side grip (auxiliary handle) and firmly

hold the tool by both side grip and switch handle during

operations.

Hammer drilling operation (Fig. 30)

CAUTION:

• There is tremendous and sudden twisting force exerted

on the tool/bit at the time of hole break-through, when

the hole becomes clogged with chips and particles, or

when striking reinforcing rods embedded in the

concrete. Always use the side grip (auxiliary handle)

and firmly hold the tool by both side grip and switch

handle during operations. Failure to do so may result in

the loss of control of the tool and potentially severe

injury.

Set the action mode changing knob to the symbol.

Position the bit at the desired location for the hole, then

pull the switch trigger. Do not force the tool. Light

pressure gives best results. Keep the tool in position and

prevent it from slipping away from the hole.

Do not apply more pressure when the hole becomes

clogged with chips or particles. Instead, run the tool at an

idle, then remove the bit partially from the hole. By

repeating this several times, the hole will be cleaned out

and normal drilling may be resumed.

NOTE:

• Eccentricity in the bit rotation may occur while

operating the tool with no load. The tool automatically

centers itself during operation. This does not affect the

drilling precision.

Blow-out bulb (optional accessory) (Fig. 31)

After drilling the hole, use the blow-out bulb to clean the

dust out of the hole.

Chipping/Scaling/Demolition (Fig. 32)

Set the action mode changing knob to the g symbol.

Hold the tool firmly with both hands. Turn the tool on and

apply slight pressure on the tool so that the tool will not

bounce around, uncontrolled. Pressing very hard on the

tool will not increase the efficiency.

Drilling in wood or metal

CAUTION:

• Never use “rotation with hammering” when the quick

change drill chuck is installed on the tool. The quick

change drill chuck may be damaged.

Also, the drill chuck will come off when reversing the

tool.

• Pressing excessively on the tool will not speed up the

drilling. In fact, this excessive pressure will only serve

to damage the tip of your bit, decrease the tool

performance and shorten the service life of the tool.

• There is a tremendous twisting force exerted on the

tool/bit at the time of hole breakthrough. Hold the tool

firmly and exert care when the bit begins to break

through the workpiece.

• A stuck bit can be removed simply by setting the

reversing switch to reverse rotation in order to back

out. However, the tool may back out abruptly if you do

not hold it firmly.

• Always secure small workpieces in a vise or similar

hold-down device.

Set the action mode changing knob to the

m symbol.

You can drill up to 13 mm diameter in metal and up to

32 mm diameter in wood.

For Model HR2631F, HR2641, HR2630

Use the drill chuck assembly (optional accessory). When

installing it, refer to “Installing or removing the bit”

described on the previous page. (Fig. 33)

To install the bit, place it in the chuck as far as it will go.

Tighten the chuck by hand. Place the chuck key in each

of the three holes and tighten clockwise. Be sure to

tighten all three chuck holes evenly.

To remove the bit, turn the chuck key counterclockwise in

just one hole, then loosen the chuck by hand. (Fig. 34)

For Model HR2631FT, HR2320T, HR2630T

Use the quick change drill chuck as standard equipment.

When installing it, refer to “changing the quick change

chuck for SDS-plus” described on the previous page.

(Fig. 35 & 36)

Hold the ring and turn the sleeve counterclockwise to

open the chuck jaws. Place the bit in the chuck as far as

it will go. Hold the ring firmly and turn the sleeve

clockwise to tighten the chuck.

To remove the bit, hold the ring and turn the sleeve

counterclockwise. (Fig. 37)

Diamond core drilling

CAUTION:

• If performing diamond core drilling operations using

“rotation with hammering” action, the diamond core bit

may be damaged.

When performing diamond core drilling operations,

always set the change lever to the m position to use

“rotation only” action.

Makita HR2320T Seite 10

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