Manual DeWalt dw 912 k2 (page 29 of 116) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Spanish, Norwegian)

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ENGLISH

24 en - 7

Removing and fitting the chuck (fig. F & G)

• Open the chuck jaws as far as possible.

• Insert a screwdriver into the chuck and remove

the chuck retaining screw by turning clockwise

as shown in figure F.

• Tighten an Allen key into the chuck and strike it

with a hammer as shown in figure G. This will

loosen the chuck so that it can be unscrewed

by hand.

• To refit the chuck, proceed in reverse order.

Instructions for use

• Always observe the safety instructions

and applicable regulations.

• Be aware of the location of pipework and

wiring.

• Apply only a gentle pressure to the tool.

Excessive force does not speed up

drilling but decreases tool performance

and may shorten tool life.

• To minimise stalling on break-through,

progressively reduce the drill point

pressure towards the end of the

operation.

• Keep the motor running when pulling the

bit back out of a drilled hole. This will

help prevent jamming.

Prior to operation:

• Make sure your battery pack is (fully) charged.

• Insert the appropriate bit.

• Mark the spot where the hole is to be drilled.

• Select forward or reverse rotation.

Switching ON and OFF (fig. A & D)

• To run the tool, press the variable speed switch.

The pressure exerted on the variable speed

switch determines the tool speed.

• To stop the tool, release the switch.

• To lock the tool in OFF-position, move the

forward/reverse slider (2) to the central position.

The drill is equipped with a brake to stop

the tool as soon as the variable speed

switch is fully released.

Screwdriving (fig. A)

• Select forward or reverse rotation using the

slider (2).

• Set the collar (4) to position 1 and begin

screwdriving (low torque).

• If the clutch ratchets too soon, adjust the collar

to increase the torque as required.

Drilling (fig. A)

• Select the drilling mode using the collar (4).

Drilling in metal

• Use a cutting lubricant when drilling metals.

The exceptions are cast iron and brass which

should be drilled dry.

Drilling in wood

• 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.

• For larger holes use Auger bits.

• Use a block of wood to back up workpieces that

may splinter.

DW909/DW912/DW914/DW997 -

Percussion drilling

Drilling in masonry

• Use carbide-tipped masonry bits up to 10 mm ø

at high speed. Select low speed for larger ø bits.

Keep even force on the drill. A smooth, even flow

of dust indicates the proper drilling rate.

Consult your dealer for further information on the

appropriate accessories.

Maintenance

Your DEWALT Power Tool has been designed to

operate over a long period of time with a minimum

of maintenance. Continuous satisfactory operation

depends upon proper tool care and regular cleaning.

Lubrication

Your Power Tool requires no additional lubrication.

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DeWalt dw 912 k2 Manual

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