Manual DeWalt D25263K Rotary Hammer

Manual

Mechanical Clutch

All rotary hammer drills are equipped with a torque limiting clutch that reduces the maximum torque

reaction transmitted to the operator in case of jamming of a drill bit. This feature also prevents the

gearing and electric motor from stalling. The torque limiting clutch has been factory-set and cannot

be adjusted.

Side Handle (Fig. 2)

WARNING: To reduce the risk of personal injury, ALWAYS operate the tool with the side handle

properly installed and securely tightened. 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.

A side handle comes assembled with this rotary hammer. The side handle (H) can be fitted to suit

both right-hand and left-hand users.

TO ADJUST THE SIDE HANDLE

1. Loosen the side handle (H) by turning it counterclockwise.

2. Rotate the side handle to the desired position.

3. Tighten the side handle by turning it clockwise.

Trigger Switch (Fig. 1)

To start the rotary hammer, depress the variable speed trigger switch (A). To stop rotary hammer,

release the switch.

NOTE: Use lower speeds for starting holes without a centerpunch, drilling in metal, plastics or

ceramics, or driving screws. Higher speeds are better for drilling in masonry for maximum effi ciency.

VARIABLE SPEED

The variable speed trigger switch (A) permits speed control. The farther the trigger switch is

depressed, the higher the speed of the drill.

Forward/Reverse Lever (Fig. 1)

The forward/reverse lever (C) is used to reverse the rotary hammer for backing out fasteners or

jammed bits in drill-only mode.

CAUTION: When reversing to clear jammed bits, be ready for strong reactive torque.

To reverse the rotary hammer, turn it off and align the forward/reverse lever (C) with the yellow arrow

pointing backward (viewed when holding drill in operating position).

To position the lever for forward operation, turn the rotary hammer off and align the forward/reverse

lever (C) with the yellow arrow pointing forward (viewed when holding drill in operating position).

Mode Selector (Fig. 3)

D25133, D25260, D25262, D25263

WARNING: Do not operate in drill or hammerdrill mode with a chisel bit in the chuck. Personal

injury and damage to tool may result.

NOTICE: Tool must come to a complete stop before activating the mode selector button or damage

to the tool may result.

DRILL-ONLY MODE

To use drill-only mode, press mode selector button (E) and turn the mode selector (D) so the yellow

arrow points to the corresponding symbol as shown. Use drill-only mode for wood, metal, and

plastics.

HAMMERDRILL MODE

To use hammerdrill mode, press the mode selector button (E) and turn the mode selector (D) so the

yellow arrow points to the corresponding symbol as shown. Use this mode for masonry drilling.

HAMMER-ONLY MODE

For light chiseling, press the mode selector button (E) and turn the mode selector (D) so the yellow

arrow points to the corresponding symbol as shown.

NOTE: The yellow arrow on the mode selector MUST be aligned with the one of the symbols at all

times. There are no operable positions between the positions.

SDS Plus Chuck (Fig. 1)

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.

WARNING: Burn Hazard. ALWAYS wear gloves when changing bits. Accessible metal parts on

the tool and bits may get extremely hot during operation. Small bits of broken material may damage

bare hands.

WARNING: Do not attempt to tighten or loosen drill bits (or any other accessory) by gripping the

front part of the chuck and turning the tool on. Damage to the chuck and personal injury may occur.

To insert bit, insert shank of bit about 3/4" (19 mm), no further than 7/8" (24 mm) into chuck (F).

Push and rotate bit until it locks in place. The bit will be securely held.

To release bit, pull the chuck sleeve (F) back and remove the bit.

OPERATION

WARNING: To reduce the risk of injury, turn unit off and disconnect it from power source

before installing and removing accessories, before adjusting or when making repairs. An

accidental start-up can cause injury.

WARNING: To reduce the risk of personal injury, ALWAYS ensure workpiece is anchored

or clamped fi rmly. If drilling thin material, use a wood “back-up” block to prevent damage to the

material.

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

handle properly installed and securely tightened. 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.

Proper Hand Position (Fig. 1, 4)

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 (H), with the other hand on the main

handle (B).

Drilling Tools

The machine is intended for hammerdrilling in concrete, brick and stone. It is also suitable for drilling

without impact in wood, metal, ceramic and plastic.

Chipping Tools

The machine is intended for chipping in concrete, brick and stone.

Drilling

Press mode selector button (E) and turn the mode selector (D) to the drill bit symbol for drilling, to the

hammer symbol for hammering or to the hammerdrill symbol for hammerdrilling.

DRILLING OPERATION

1. 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, use carbide-tipped bits or

masonry bits. A smooth, even fl ow of dust indicates the proper drilling rate.

2. Always apply pressure in a straight line with the bit. Use enough pressure to keep the drill bit

biting, but do not push hard enough to stall the motor or defl ect the bit.

3. Hold tool fi rmly with both hands to control the twisting action of the drill.

WARNING: Drill may stall if overloaded causing a sudden twist. Always expect the stall. Grip

the drill fi rmly with both hands to control the twisting action and avoid injury.

4. IF DRILL STALLS, it is usually because it is being overloaded. RELEASE TRIGGER

IMMEDIATELY, remove drill bit from work, and determine cause of stalling. DO NOT CLICK

TRIGGER OFF AND ON 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

An SDS Plus round shank adaptor chuck is required for metal drilling. Ensure that tool is in drill-only

mode. Start drilling with slow speed and increase to full power while applying fi rm pressure on the

tool. A smooth even fl ow 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" to 1/2" [7.9 mm to 12.7 mm]) holes in steel can be made easier if a pilot hole

(5/32" to 3/16" [4 mm to 4.8 mm]) is drilled fi rst.

DRILLING IN WOOD

An SDS Plus round shank adaptor chuck is required for drilling in wood. Ensure that tool is in drill-only

mode. Start drilling with slow speed and increase to full power while applying fi rm 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 fl utes. For larger holes, use spade bits, power

auger bits, or hole saws. Work that is apt to splinter should be backed up with a block of wood.

HAMMERDRILL OPERATION

1. When drilling, use just enough force on the hammer to keep it from bouncing excessively or

“rising” off the bit. Too much force will cause slower drilling speeds, overheating, and a lower

drilling rate.

2. Drill straight, keeping the bit at a right angle to the work. Do not exert side pressure on the bit

when drilling as this will cause clogging of the bit fl utes and a slower drilling speed.

3. When drilling deep holes, if the hammer speed starts to drop off, pull the bit partially out of the

hole with the tool still running to help clear debris from the hole.

4. For masonry, use carbide-tipped bits or masonry bits. A smooth even fl ow of dust indicates the

proper drilling rate.

FIG. 5

I

G

H

FIG. 1

H

FIG. 2

Chipping and Chiseling (Fig. 1)

WARNING: Do not operate in drill or hammerdrill mode with a chisel bit in the chuck. Personal

injury and damage to tool may result.

1. Insert chisel while in hammerdrill mode and rotate to desired position.

2. Set the mode selector (D) to the hammer-only position.

3. Adjust the side handle (H) as required.

4. Switch on the tool and start working.

5. Always switch off the tool when work is finished and before unplugging.

Depth Rod (Fig. 5)

TO ADJUST THE DEPTH ROD

1. Push in and hold the depth rod release button (I) on the side handle.

2. Move the depth rod (G) so the distance between the end of the rod and the end of the bit equals

the desired drilling depth.

3. Release the button to lock rod into position. When drilling with the depth rod, stop when end of

rod reaches surface of material.

MAINTENANCE

WARNING: To reduce the risk of injury, turn unit off and disconnect it from power source

before installing and removing accessories, before adjusting or when making repairs. An

accidental start-up can cause injury.

Cleaning

WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week. To

minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection when performing

this.

WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts of the

tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth dampened

only with water and mild soap. Never let any liquid get inside the tool; never immerse any part of the

tool into a liquid.

Lubrication

Your tool was properly lubricated before leaving the factory. In from two to six months, depending

upon use, take or send your tool to an authorized service center for a complete cleaning, inspection

and lubrication. Tools used constantly on production jobs will need relubrication more often. Also,

tools “out of service” for long periods should be relubricated before being put back to work.

Accessories

WARNING: Since accessories, other than those offered by DEWALT, have not been tested with

this product, use of such accessories with this tool could be hazardous. To reduce the risk of injury,

only D

EWALT recommended accessories should be used with this product.

Recommended accessories for use with your tool are available at extra cost from your local dealer or

authorized service center. If you need assistance in locating any accessory, please contact D

EWALT

Industrial Tool Co., 701 East Joppa Road, Towson, MD 21286, call 1-800-4-D

EWALT (1-800-433-

9258) or visit our website: www.dewalt.com.

MAXIMUM RECOMMENDED CAPACITIES

D25260 D25133, D25262 D25263

Masonry 7/8" (24 mm) 1" (26 mm) 1-1/8" (28 mm)

Masonry

Optimum Capacity

3/16"–1/2"

(5 mm–13 mm)

1/4"–5/8"

(6 mm–16 mm)

1/4"–3/4"

(6 mm–19 mm)

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush

inspection and replacement) should be performed by a DEWALT factory service center, a DEWALT

authorized service center or other qualifi ed service personnel. Always use identical replacement

parts.

G

F

D25133

FIG. 3

DRILL-ONLY MODE

MODE PERÇAGE SEULEMENT

MODO SÓLO TALADRO

HAMMERDRILL MODE

MODE PERFORATION-PERÇAGE

MODO TALADRO/PERCUTOR

CHISEL ROTATION

ROTATION DU BURIN

ROTACIÓN DE CINCELES

HAMMER-ONLY MODE

MODE PERFORATION SEULEMENT

MODO SÓLO MARTILLO

(D25133, D25260, D25262, D25263)

I

B

D

E

C

H

J

C

B

D

E

I

H

F

J

G

D25263

E

D

A

A

FIG. 4

K

Rating

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