Bedienungsanleitung DeWalt DCH253 (Seite 16 von 60) (Englisch, Französisch, Spanisch)

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English

WARNING: To reduce the risk of serious personal injury, ALWAYS

hold securely in anticipation of a suddenreaction.

Proper hand position requires one hand on the side handle, with the

other hand on the mainhandle.

FIG. 10

Drilling (Fig. 4)

WARNING: To reduce the risk of personal injury, ALWAYS operate

the tool with the side handle properly installed. Failure to do so may

result in the side handle slipping during tool operation and subsequent

loss of control. Hold tool with both hands to maximizecontrol.

NOTICE: If drilling thin material, use a wood “back-up” block to

prevent damage to thematerial.

1. Turn the mode selector (D) to the drill symbol (J).

2. Use sharp drill bits only. For WOOD, use twist bits, spade bits,

power auger bits or hole saws. For METAL, use high-speed steel

twist drill bits or hole saws. Use a cutting lubricant when drilling

metals. The exceptions are cast iron and brass which should be

drilled dry. For MASONRY, such as brick, cement, cinder block,

etc., use carbide-tipped bits rated for percussiondrilling.

3. 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.

4. Hold tool firmly with both hands to control the twisting action of

the drill. If model is not equipped with side handle, grip drill with one

hand on the handle and one hand on the batterypack.

WARNING: Drill may stall if overloaded causing a sudden twist.

Always expect the stall. Grip the drill firmly to control the twisting

action and avoidinjury.

5. 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 DEPRESS TRIGGER ON AND OFF IN AN ATTEMPT

TO START A STALLED DRILL — THIS CAN DAMAGE

THEDRILL.

6. To minimize stalling or breaking through the material, reduce

pressure on drill and ease the bit through the last fractional part of

thehole.

. Keep the motor running when pulling the bit back out of a drilled

hole. This will help preventjamming.

. 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

An SDS Plus to round shank adaptor chuck is required. Ensure that

tool is in drill-only mode. 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.

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DeWalt DCH253 Seite 16

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