Manual

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DEWALT Industrial Tool Co,, 701 East Joppa Road, Towson, MD 21286

(MAR14) Part No. N392152 D25712, D25721, D25723, D25761, D25763, D25871, D25891

The following are trademarks for one or more DEWAI] power tools: the yellow and black color scheme, the "D" shaped air

intake grill, the array of pyramids on the handgrip, the kit box configuration, and the array of lozenge-shaped humps on the

surface of the tool.

/I Definitions: Safety Guidelines

The definitions below describe the level of severity for each signal word. Please read the

manual and pay attention to these symbols.

_DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in

death or serious injury.

_ WARNING: Indicates a potentially hazardous situation which, if not avoided, could result

in death or serious injury.

_CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in

minor or moderate injury.

NOTICE: indicates a practice not related to personal injury which, if not avoided, may

result in property damage.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL, CALL

US TOLL FREE AT: 1-800-4-DEWALT (1-800-433-9258}.

WARNING: To reduce the risk of injury, read the instruction manual.

General Power Tool Safety Warnings

_ ARNING! Read all safety warnings and all instructions. Failure to follow the warnings

and instructions may result in electric shock, fire and/or serious injury,

SAVE ALL WARNINGS AND INSTRUCTIONS

FOR FUTURE REFERENCE

The term "power tool" in the warnings refers to your mains-operated (corded) power tool or

battery-operated (cordless) power tool.

1) WORK AREA SAFETY

a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.

b) Do not operate power tools in explosive atmospheres, such as in the presence of

flammable liquids, gases or dust. Power tools create sparks which may ignite the dust

or fumes.

c) Keep children and bystanders away while operating a power tool. Distractions can

cause you to lose control

2) ELECTRICAL SAFETY

a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not

use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and

matching outlets will reduce risk of electric shock.

b) Avoid body contact with earthed or grounded surfaces such as pipes, radiators,

ranges and refrigerators. There is an increased risk of electric shock if your body is

earthed or grounded.

c) Do not expose power tools to rain or wet conditions. Water entering a power tool will

increase the risk of electric shock.

d) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the

power tool Keep cord away from heat, oil, sharp edges or moving parts. Damaged

or entangled cords increase the risk of electric shock.

e) When operating a power tool outdoors, use an extension cord suitable for outdoor

use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

0 If operating a power tool in a damp location is unavoidable, use a ground fault circuit

interrupter (GFCI) protected supply, Use of a GFCI reduces the risk of electric shock.

3) PERSONAL SAFETY

a) Stay alert, watch what you are doing and use common sense when operating a

power tool. Do not use a power tool while you are tired or under the influence of

drugs, alcohol or medication. A moment of inattention while operating power tools may

result in serious personal injury,

b) Use personal protective equipment. Always wear eye protection. Protective

equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used

for appropriate conditions will reduce personal injuries.

c) Prevent unintentional starting. Ensure the switch is in the off position before

connecting to power source and/or battery pack, picking up or carrying the tool

Carrying power tools with your finger on the switch or energising power tools that have the

switch on invites accidents.

d) Remove any adjusting key or wrench before turning the power tool on. A wrench or

a key left attached to a rotating part of the power tool may result in personal injury,

e) Do not overreach. Keep proper footing and balance at all times. This enables better

control of the power tool in unexpected situations.

0 Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing

and gloves away from moving parts. Loose clothes, jeweller}! or long hair can be caught

in moving parts.

g) If devices are provided for the connection of dust extraction and collection

facilities, ensure these are connected and properly used. Use of dust collection can

reduce dust-related hazards.

4) POWER TOOL USE AND CARE

@ Do not force the power tool Use the correct power tool for your application. The

correct power too/will do the job better and safer at the rate for which it was designed.

b) Do not use the power tool if the switch does not turn ff on and off. Any power too/

that cannot be controlled with the switch is dangerous and must be repaired.

c) Disconnect the plug from the power source andlor the battery pack from the

power tool before making any adjustments, changing accessories, or storing

power tools. Such preventive safety measures reduce the risk of starting the power too/

accidentally,

d) Store idle power tools out of the reach of children and do not allow persons

unfamiliar with the power tool or these instructions to operate the power tool

Power tools are dangerous in the hands of untrained users.

e) Maintain power tools. Check for misalignment or binding of moving parts, breakage

of parts and any other condition that may affect the power tool's operation. If

damaged, have the power tool repaired before use. Many accidents are caused by

poorly maintained power tools.

0 Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting

edges are less likely to bind and are easier to control.

g) Use the power tool, accessories and tool bits etc., in accordance with these

instructions taking into account the working conditions and the work to be

performed. Use of the power tool for operations different from those intended could result

in a hazardous situation.

5) SERVICE

@ Have your power tool serviced by a qualified repair person using only identical

replacement parts. This will ensure that the safety of the power tool is maintained.

Additional Safety Instructions for Rotary Hammers

• Wear ear protectors. Exposure to noise can cause hearing loss.

• Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury,

• Hold power tool by insulated gripping surfaces when performing an operation where

the cutting accessory may contact hidden wiring or its own cord. Cutting accessory

contacting a "live" wire may make exposed metal parts of the power tool "live" and could give

the operator an electric shock.

• Use clamps or other practical way to secure and support the workpiece to a stable

platform. Holding the work by hand or against your body is unstable and may lead to loss of

control

• Wear safety goggles or other eye protection. Hammering operations cause chips to

fly, Flying particles can cause permanent eye damage. Wear a dust mask or respirator for

applications that generate dust. Ear protection may be required for most applications.

• Keep a firm grip on the tool at all times. Do not attempt to operate this tool without holding

it with both hands. Operating this tool with one hand will result in loss of control Breaking

through or encountering hard materials such as re-bar may be hazardous as well. Tighten the

side handle securely before use.

• Do not operate this tool for long periods of time. Vibration caused by hammer action may

be harmful to your hands and arms. Use gloves to provide extra cushion and limit exposure by

taking frequent rest periods.

• Do not recondition bits yourself. Chisel reconditioning should be done by an authorized

specialist. Improperly reconditioned chisels could cause injury,

• Wear gloves when operating tool or 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.

• Never lay the tool down until the bit has come to a complete stop. Moving bits could

cause injury,

• Do not strike jammed bits with a hammer to dislodge them. Fragments of metal or

material chips could dislodge and cause injury,

• Keep the power cord away from the rotating bit. Do not wrap the cord around any part of

your body, An electric cord wrapped around a spinning bit may cause personal injury and loss

of control.

• Air vents often cover moving parts and should be avoided. Loose clothes, jeweller}! or

long hair can be caught in moving parts.

• An extension cord must have adequate wire size (AWG or American Wire Gauge) for

safety. The smaller the gauge number of the wire, the greater the capacity of the cable, that is

16gauge has more capacity than 18gauge. An undersized cord will cause a drop in line voltage

resulting in loss of power and overheating. When using more than one extension to make up

the total length, be sure each individual extension contains at least the minimum wire size. The

following table shows the correct size to use depending on cord length and nameplate ampere

rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the

cord.

Ampere Rating

Than

Not More

Than

Minimum Gauge for Cord Sets

Volts Total Length of Cord in Feet (meters)

120V 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.7)

240V 50 (15.2) 100(30.5) 200 (61.0) 300(91.4)

AWG

16 14

14 12

Not Recommended

_, WARNING: ALWAYS use safety glasses. Everyday eyeglasses are NOT safety glasses. Also use

face or dust mask if cutting operation is dusty, ALWAYS WEAR CERTIFIED SAFETY EQUIPMENX

• ANSI Z87.1 eye protection (CAN/CSA Z94.3),

• ANSI $12.6 ($3.19) hearing protection,

• NIOSH/OSHA/MSHA respiratory protection.

,_,WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other

construction activities contains chemicals known to the State of California to cause cancer, birth

defects or other reproductive harm. Some examples of these chemicals are:

• lead from lead-based paints,

• crystalline silica from bricks and cement and other masonry products, and

• arsenic and chromium from chemically-treated lumber.

Your risk from these exposures varies, depending on how often you do this type of work. To reduce

your exposure to these chemicals: work in a well ventilated area, and work with approved safety

equipment, such as those dust masks that are specially designed to filter out microscopic particles.

• Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and

other construction activities. Wear protective clothing and wash exposed areas with

soap and water. Allowing dust to get into your mouth, eyes, or lay on the skin may promote

absorption of harmful chemicals.

_ WARNING: Use of this tool can generate and/or disperse dust, which may cause serious and

permanent respiratory or other injury, Always use NIOSH/OSHA approved respiratory protection

appropriate for the dust exposure. Direct particles away from face and body,

_WARNING: Always wear proper personal hearing protection that conforms to ANSI

$12.6 ($3.19) during use. Under some conditions and duration of use, noise from this product

may contribute to hearing loss.

• The label on your tool may include the following symbols. The symbols and their definitions

are as follows:

V..................... volts

Hz ................... hertz

min ................. minutes

- -- or DC ..... direct current

(_) ................... Class I Construction

(grounded)

[] ................... Class II Construction

(double insulated)

.../min ............ per minute

IPM ................. impacts per minute

SPM ............... strokes per minute

A ......................... amperes

W........................ watts

or AC ............. alternating current

or AC/DC ...... alternating or direct current

no....................... no load speed

n ......................... rated speed

@ ....................... earthing terminal

_, ........................ safety alert symbol

BPM ................... beats per minute

RPM ................... revolutions per minute

sfpm ................... surface feet per minute

Motor

Your DF:WALTtool is powered by a DEWALT-built motor. Be sure your power supply agrees with the

nameplate markings. Voltage decrease of more than 10% will cause loss of power and overheating.

All DEWALT tools are factory tested.

COMPONENTS (Fig. 1)

•_ WARNING: Never modify the power tool or any part of it. Damage or personal injury could result.

A. Trigger switch (D25712, D25721, D25723,

D25761, D25763)

On/off rocker switch (D25871, D25891)

B. Lock-on slider (D25712, D25721, D25723,

D25761, D25763)

C. Side handle

INTENDED USE

These heavy-duty rotary hammers have been

D. Main handle

E. SHOCKS Active Vibration Control °

F. Mode selector

G. Electronic speed and impact control dial

H. Clamp wheel

I. Rear side handle position

designed for professional hammerdrilling and

chipping at various work sites (i.e., construction sites). DO NOT use under wet conditions or in

presence of flammable liquids or gases.

These heavy-duty rotary hammers are professional power tools. DO NOT let children come into

contact with the tool. Supervision is required when inexperienced operators use this tool.

ASSEMBLY AND ADJUSTMENTS

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,

Side Handle (Fig. 2-4)

D25712, D25721, D25723, D25761, D25763

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

The side handle clamps to the front barrel (collar) and may be rotated 360 ° to permit right- or left-

hand use. For operating convenience, the side handle can be installed in front or rear positions.

TO MOUNT IN FRONT POSITION (FIG. 2)

1. Unscrew the side handle (C) and disassemble the side handle clamp (J).

2. Snap the steel ring (K) over the collar (L) behind the tool holder (M). Squeeze both ends of the

steel ring together. Mount the bushing (N) and insert the pin (O).

3. Slide the side handle clamp (J) onto the bushing (N) while keeping the pin (O) centered. Lightly

screw the clamp wheel (H) onto the busing (N)--do not tighten.

4. Screw the side handle (C) into the clamp wheel (H) and tighten.

5. Rotate the side handle mounting assembly to the desired position. For hammerdrilling

horizontally with a heavy drill bit, place the side handle assembly at an angle of approximately

20° to the tool for optimum control.

6. Lock the side handle mounting assembly in place by securely tightening the clamp wheel (H)

so that the assembly will not rotate.

TO MOUNT IN REAR POSITION (FIG. 3}

1. Unscrew the side handle (C)and remove it from the side handle mounting assembly. Leave the

side handle mounting assembly in the front position.

2. Screw the side handle directly into one of the rear side handle positions (I)on either side of the

tool.

D25871, D25891 (FIG. 4}

1. Unscrew the D-shaped handle knob (Q).

Summary of content (7 pages)

PAGE 1
LULU 0 Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control. g) Use the power tool, accessories and tool bits etc., in accordance with these instructions taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
PAGE 2
TWO-STAGE CLUTCH FIG. 1 CHISEL BIT ADJUSTMENT MODE MODE DE R_!_GI..AGEDU TR[!_PAN ORDINAIRE MODO DE AJUSTE DE LA BROCA DE CINCEL HAMMERDRILLING MODE MODE DE MARTEAU PERFORAfEUR MODO TAI..
PAGE 3
completely through thestructure. Thendrillthecoredholehalfway fromeachsideof the structure. 9.Tostopthetool,release thetrigger switch. Always turnthetooloffwhenworkisfinished and before unplugging. Chipping and Chiseling D25871, D25891 1. Set the mode selector to chipping mode. 2. Set the impact control dial to desired setting (refer to Electronic Speed and Impact Control) 3. Insert the appropriate chisel and rotate it by hand to lock it into the desired position.
PAGE 4
• Protection oculaire ANSI Z87.1 (CAN/CSA Z94.3) ; • Protection auditive ANSI S 12.6 ($3.19) ; • Protection des voies respiratoires NIOSH/OSHA/MSHA. i_AVERTISSEMENT : les scies, meules, ponceuses, perceuses ou autres outils de construction peuvent produire des poussieres contenant des produits chimiques reconnus par I'Etat califomien pour causer cancers, malformations congenitales ou _tre nocifs au systeme reproducteur.
PAGE 5
9.Pourarr_ter I'outil,rel_.chez lagb.chette. Mettez systematiquement I'interrupteur enpositionAdvertencias d'arr_t unefoisletravail termine etavantdedebrancher I'outil. generales de seguridad para herramientas eldctricas Burinage et ciselage A D25871, D25891 1. Reglez le selecteur de mode sur le mode burinage. 2. Reglez le regulateur electronique d'impact sur le parametre desire (se reporter a. la section R_gulateur _lectronique de vitesse et d'impact). 3.
PAGE 6
Calibre minimo para cables de alimentacibn Voltios Largo total del cordbn en metros (pies) Amperaje 120 V 7,6 (25) 15,2 (50) 30,5 (100) 45,7 (150) 240 V 15,2 (50) 30,5 (100) 61,0 (200) 91,4 (300) Mas de No mas de AWG 0 6 18 16 16 14 6 10 18 16 14 12 I0 12 16 16 14 12 12 16 14 12 No recomendado AADVERTENCIA: Use SIEMPRE /entes de seguridad. Los anteojos de diario NO SON/entes de seguridad. Utilice ademas una cubrebocas o mascarilla antipolvo si la operacidn de corte genera demasiado polvo.
PAGE 7
TALADRADO CON BARRENAS HUECAS (FIG. 1, 6) D25712, D25721, D25723, D25761, D25763 _ATENCI(_N: No utilice una barrena hueca para taladrado de percusidn en madera. Podrfan presentarse lesiones corporales y dahos a la herramienta. NOTA: Los D25871 y D25891 solamente tienen modos de burilado, sin capacidad para taladrado de percusion. 1. Coloque el selector de modalidad (F) en el modo de taladrado de percusiOn. 2.