Manual DeWalt D25263 (page 28 of 116) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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ENGLISH



CAUTION: When reversing to clear jammed bits, be ready

for strong reactivetorque.

To reverse the hammer, turn it off and align the forward/reverse

lever

3

with the yellow arrow pointingbackward.

To position the lever for forward operation, turn the hammer

off and align the forward/reverse lever

3

with the yellow arrow

pointingforward.

Fitting the Chuck Adapter and Chuck

Optional Accessory

D25032, D25033, D25133, D25143,

D25263

1. Screw the chuck onto the threaded end of the

chuckadapter.

2. Insert the connected chuck and adapter in the tool as

though it were a standard SDS Plusbit.

3. To remove the chuck, proceed as for removing a standard

SDS Plusbit.



WARNING: Never use standard chucks in the

hammerdrillingmode.

Replacing the SDS Plus Tool Holder with the

Keyless Chuck (Fig. H)

D25134, D25144

1. Turn the locking collar

13

into the unlocking position and

pull the SDS Plus Tool Holder

6

off.

2. Push the keyless chuck

14

onto the spindle and turn the

locking collar

13

to the lockingposition.

To replace the keyless chuck with the SDS Plus tool holder, ﬁrst

remove the keyless chuck the same way the tool holder was

removed. Then place the tool holder the same way the keyless

chuck was placed, making sure to turn the locking collar to the

lockingposition.



WARNING: Never use standard chucks in the

hammerdrillingmode.

Replacing the Dust Cover (Fig. A)

The dust cover

11

prevents dust ingress into the mechanism.

Replace a worn dust coverimmediately.

1. Pull back the tool holder locking sleeve

10

and pull the

dust cover

11

off.

2. Fit the new dustcover.

3. Release the tool holder lockingsleeve.

OPERATION

Instructions for Use



WARNING: Always observe the safety instructions and

applicableregulations.



WARNING: To reduce the risk of serious personal

injury, turn tool off and disconnect tool from power

source before making any adjustments or removing/

installing attachments or accessories. Be sure the

trigger switch is in the OFF position. An accidental start-up

can cause injury.



WARNING:

• 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.I). Always operate the tool

with the side handle properlymounted.

Proper Hand Position (Fig. I)



WARNING: To reduce the risk of serious personal injury,

ALWAYS use proper hand position asshown.



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

8

with the other hand on the main handle

2

Switching On and Off (Fig. A)

1. To run the tool, press the variable speed switch

1

. The

pressure exerted on the variable speed switch determines

the toolspeed.

2. For continuous operation, press and hold down the variable

speedswitch.

3. To stop the tool, release theswitch.

Hammerdrilling (Fig. A)

Drilling with a Solid Bit

1. Hold down the mode selector button

5

then set the mode

selector switch

4

to the hammerdrillingposition.

2. Insert the appropriate drillbit.

NOTE: For best results use high quality carbide-tippedbits.

3. Adjust the side handle

8

asrequired.

4. If necessary, set the drillingdepth.

5. Mark the spot where the hole is to bedrilled.

6. Place the drill bit on the spot and switch on thetool.

7. Always switch off the tool when work is ﬁnished and

beforeunplugging.

Drilling with a Core Bit

1. Hold down the mode selector button

5

then set the mode

selector switch

4

to the hammerdrillingposition.

2. Adjust the side handle

8

asrequired.

3. Insert the appropriate corebit.

4. Assemble the centerdrill into the corebit.

5. Place the centerdrill on the spot and press the on/off

switch

1

. Drill until the core penetrates into the concrete

approx. 1cm.

6. Stop drilling and remove the centerdrill. Place the core bit

back into the hole and continuedrilling.

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DeWalt D25263 Manual

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