Bedienungsanleitung DeWalt DWD112 (Seite 25 von 112) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Türkisch, Schwedisch, Norwegisch, Finnisch)

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adjustments or removing/installing

attachments or accessories.

Proper Hand Position (ﬁ g. 1, 3)

WARNING: To reduce the risk of

serious personal injury, ALWAYS

use proper hand position as shown

in figure 3.

WARNING: To reduce the risk of

serious personal injury, ALWAYS hold

securely in anticipation of a sudden

reaction.

Proper hand position requires one hand under the

the housing, with the other hand on the main handle

(e).

Switches (ﬁ g. 1, 2)

To start the drill, depress the trigger switch; to stop

the drill, release the trigger.

A variable speed trigger switch (a) permits speed

control—the farther the trigger is depressed, the

higher the speed of the drill.

For continuous operation, press and hold the

variable speed switch, move the lock-on button (b)

up, then release the switch.

NOTE: Use lower speeds for starting holes without

a center punch, drilling in metal or plastics, driving

screws or drilling ceramics. Higher speeds are better

for drilling wood and composition boards and using

abrasive and polishing accessories.

The forward/reverse lever (c) is used for withdrawing

bits from tight holes and removing screws. It is

located above the trigger switch. To reverse the

motor, release the trigger switch FIRST and then

push the lever to the right. After any reversing

operations, return lever to forward position.

To stop continuous operation, press the switch

briefly and release it. Always switch the tool off when

work is finished and before unplugging.

Drilling

WARNING: To reduce the risk of

personal injury, ALWAYS ensure

workpiece is anchored or clamped

firmly. If drilling thin material, use a wood

“back-up” block to prevent damage to

the material.

1. Use sharp drill bits only. For WOOD, use twist

drill bits, spade bits, power auger bits, or hole

saws. For METAL, use steel twist drill bits or

hole saws.

2. Always apply pressure in a straight line with the

bit. Use enough pressure to keep drill biting, but

do not push hard enough to stall the motor or

deflect the bit.

3. Hold tool firmly with both hands to control the

twisting action of the drill.

4. IF DRILL STALLS, it is usually because

it is being overloaded or improperly used.

RELEASE TRIGGER IMMEDIATELY, remove

drill bit from work, and determine cause of

stalling. DO NOT CLICK TRIGGER ON

AND OFF IN AN ATTEMPT TO START A

STALLED DRILL — THIS CAN DAMAGE

THE DRILL.

5. To minimize stalling or breaking through the

material, reduce pressure on drill and ease the

bit through the last fractional part of the hole.

6. Keep the motor running when pulling the bit

back out of a drilled hole. This will help prevent

jamming.

7. With variable speed drills there is no need to

center punch the point to be drilled. Use a

slow speed to start the hole and accelerate by

squeezing the trigger harder when the hole is

deep enough to drill without the bit skipping

out.

DRILLING IN METAL

Start drilling with slow speed and increase to full

power while applying firm pressure on the tool.

A smooth even flow of metal chips indicates the

proper drilling rate. Use a cutting lubricant when

drilling metals. The exceptions are cast iron and

brass which should be drilled dry.

NOTE:

Large [5/16" (8 mm) to 1/2" (13 mm)] holes

in steel can be made easier if a pilot hole [5/32"

(4 mm) to 3/16" (5 mm)] is drilled first.

DRILLING IN WOOD

Start drilling with slow speed and increase to full

power while applying firm pressure on the tool.

Holes in wood can be made with the same twist

drills used for metal. These bits may overheat unless

pulled out frequently to clear chips from the flutes.

Work that is apt to splinter should be backed up

with a block of wood.

Keyless Chuck – DWD112S,

DWD115S (ﬁ g. 4–6)

The DWD112S and the DWD115S feature a keyless

chuck (d) for greater convenience. To insert a drill bit

or other accessory, follow the steps listed below.

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