Manual DeWalt D25104K (page 28 of 112) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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ENGLISH

D25104K - Replacing the tool holder with

the chuck (fig. G)

• Turn the locking collar (8) into the unlocking

position and pull the tool holder (6) off.

• Push the chuck (13) onto the spindle and turn the

locking collar into the locking position.

• To replace the chuck with the tool holder,

first remove the chuck the same way as the tool

holder was removed. Then place the tool holder

the same way as the chuck was placed.

Never use standard chucks in the

hammer drilling mode.

Replacing the dust cover (fig. C)

The dust cover (7) prevents dust ingress into the

mechanism. Replace a worn dust cover immediately.

• Pull back the tool holder locking sleeve (12) and

pull the dust cover (7) off.

• Fit the new dust cover.

• Release the tool holder locking sleeve.

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

(approx. 5 kg). Excessive force does not speed

up drilling but decreases tool performance and

may shorten tool life.

• Do not drill or drive too deep to prevent damage

to the dust cover.

• Always hold the tool firmly with both hands

and ensure a secure stance (fig. H).

Always operate the tool with the side

handle properly mounted.

Switching on and off (fig. A)

D25102(K)/D25102C/D25103K/D25104K

• To run the tool, press the variable speed switch

(1). The pressure exerted on the variable speed

switch determines the tool speed.

• For continuous operation, press and hold down

the variable speed switch, press the lock-on

button (2) and release the switch.

• To stop the tool, release the switch.

• To stop the tool in continuous operation, press

the switch briefly and release it. Always switch off

the tool when work is finished and before

unplugging.

D25203K

• To run the tool, press the variable speed switch

(1). 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 (3) to the central position.

Hammer drilling (fig. A)

Drilling with a solid bit

• Set the mode selector switch (4) to the

“hammer drilling” position.

• Insert the appropriate drill bit. For best results

use high quality carbide-tipped bits.

• Adjust the side handle (9) as required.

• If necessary, set the drilling depth.

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

• Place the drill bit on the spot and switch on the

tool.

• Always switch off the tool when work is finished

and before unplugging.

Drilling with a core bit

• Set the mode selector (3) to the “hammer drilling”

position.

• Adjust the side handle (9) as required.

• Insert the appropriate core bit.

• Assemble the centerdrill into the core bit.

• Place the centerdrill on the spot and press the

variable speed switch (1). Drill until the core

penetrates into the concrete approx. 1 cm.

• Stop drilling and remove the centerdrill. Place the

core bit back into the hole and continue drilling.

• When drilling through a structure thicker than the

depth of the core bit, break away the round

cylinder of concrete or core inside the bit at

regular intervals. To avoid unwanted breaking

away of concrete around the hole, first drill a hole

the diameter of the centerdrill completely through

the structure. Then drill the cored hole halfway

from each side.

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DeWalt D25104K Manual

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