D25481 | DeWalt D25481 ROTARY HAMMER instruction manual

Final Page size: A5 (148mm x 210mm)
English (original instructions)3
Copyright DeWALT
Fig. A
Fig. B
Fig. C
Fig. D
Fig. E
You have chosen a DeWALT tool. Years of experience, thorough product development and innovation make DeWALT one of the
most reliable partners for professional power tool users.
Technical Data
(U.K & Ireland only)
Power Input
No-load speed
No-load beats per minute
Single impact energy (EPTA 05/2009)
Optimum drilling range into concrete
Maximum core drilling range in concrete
Maximum drilling range in concrete
Tool Holder
Collar diameter
Noise and vibration total values (triax vector sum) according to EN60745-2-6:
L PA (emission sound pressure level)
L WA (sound power level)
K (uncertainty for the given sound level)
Drilling into concrete
Vibration emission value ah, HD =
Uncertainty K =
Vibration emission value ah,Cheq =
Uncertainty K =
Drilling into metal
Vibration emission value ah,D =
Uncertainty K =
The vibration emission level given in this information sheet has
been measured in accordance with a standardised test given in
EN60745 and may be used to compare one tool with another. It
may be used for a preliminary assessment of exposure.
WARNING: The declared vibration emission level
represents the main applications of the tool. However if
the tool is used for different applications, with different
accessories or poorly maintained, the vibration emission
may differ. This may significantly increase the exposure
level over the total working period.
An estimation of the level of exposure to vibration should
also take into account the times when the tool is switched
off or when it is running but not actually doing the job.
This may significantly reduce the exposure level over the
total working period.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool
and the accessories, keep the hands warm, organisation
of work patterns.
EC-Declaration of Conformity
Machinery Directive
Heavy-Duty Rotary Hammer
DeWALT declares that these products described under
Technical Data are in compliance with:
2006/42/EC, EN60745-1:2009+A11:2010, EN60745-2-6:2010.
These products also comply with Directive 2014/30/EU and
2011/65/EU. For more information, please contact DeWALT at
the following address or refer to the back of the manual.
The undersigned is responsible for compilation of the technical
file and makes this declaration on behalf of DeWALT.
Markus Rompel
Director Engineering
DeWALT, Richard-Klinger-Straße 11,
D-65510, Idstein, Germany
WARNING: To reduce the risk of injury, read the
instruction manual.
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.
Denotes risk of electric shock.
Denotes risk of fire.
General Power Tool Safety Warnings
WARNING: Read all safety warnings, instructions,
illustrations and specifications provided with this
power tool. Failure to follow all instructions listed below
may result in electric shock, fire and/or serious injury.
The term “power tool” in the warnings refers to your mainsoperated (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.
f ) If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply. Use of an RCD 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.
f ) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves away
from moving parts. Loose clothes, jewellery 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
a ) Do not force the power tool. Use the correct power
tool for your application. The correct power tool
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
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
c ) Disconnect the plug from the power source and/or
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 tool 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.
f ) 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
a ) 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
Wear ear protectors. Exposure to noise can cause
hearing loss.
Use auxiliary handles 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. It
is recommended that the side handle be used at all times.
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.
Slightly worn chisels can be resharpened by grinding.
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.
WARNING: We recommend the use of a residual current
device with a residual current rating of 30mA or less.
Residual Risks
The following risks are inherent to the use of rotary hammers:
• Injuries caused by touching the rotating parts or hot parts of
the tool.
In spite of the application of the relevant safety regulations
and the implementation of safety devices, certain residual risks
cannot be avoided. These are:
• Impairment of hearing.
• Risk of squeezing fingers when changing the accessory.
• Health hazards caused by breathing dust developed when
working in concrete and/or masonry.
• Risk of personal injury due to flying particles.
• Risk of burns due to accessories becoming hot
during operation.
• Risk of personal injury due to prolonged use.
Electrical Safety
The electric motor has been designed for one voltage only.
Always check that the power supply corresponds to the voltage
on the rating plate.
Your DeWALT tool is double insulated in accordance
with EN60745; therefore no earth wire is required.
If the supply cord is damaged, it must be replaced by a
specially prepared cord available through the DeWALT
service organisation.
Mains Plug Replacement
(U.K. & Ireland Only)
If a new mains plug needs to be fitted:
• Safely dispose of the old plug.
• Connect the brown lead to the live terminal in the plug.
• Connect the blue lead to the neutral terminal.
WARNING: No connection is to be made to the
earth terminal.
Follow the fitting instructions supplied with good quality plugs.
Recommended fuse: 13 A.
Using an Extension Cable
An extension cord should not be used unless absolutely
necessary. Use an approved extension cable suitable for
the power input of your charger (see Technical Data). The
minimum conductor size is 1.5 mm2; the maximum length
is 30 m.
When using a cable reel, always unwind the cable completely.
Package Contents
The package contains:
1 Rotary Hammer
1 Side handle
1 Instruction manual
• Check for damage to the tool, parts or accessories which may
have occurred during transport.
• Take the time to thoroughly read and understand this manual
prior to operation.
Read instruction manual before use.
Wear ear protection.
The following pictograms are shown on the tool:
Wear eye protection.
Date Code Position (Fig. A)
The date code 10 , which also includes the year of manufacture,
is printed into the housing.
2017 XX XX
Year of Manufacture
Description (Fig. A)
WARNING: Never modify the power tool or any part of it.
Damage or personal injury could result.
Trigger switch
Side handle
Front Barrel (Collar)
Mode selector dial
Mode selector release button
Main handle
Bit holder
Intended Use
Your rotary hammer has been designed for professional rotary
drilling, chiseling and chipping applications.
DO NOT use under wet conditions or in the presence of
flammable liquids or gases.
Your rotary hammer is a professional power tool.
Active Vibration Control
For best vibration control, hold the tool as described in Proper
Hand Position.
The active vibration control neutralises rebound vibration from
the hammer mechanism. Lowering hand and arm vibration,
it allows more comfortable use for longer periods of time and
extends the life of the unit.
The hammer only needs enough pressure to engage the active
vibraton control. Applying too much pressure will not make
the tool drill or chip faster and active vibration control will
not engage.
Markings on Tool
DO NOT let children come into contact with the tool.
Supervision is required when inexperienced operators use
this tool.
• Young children and the infirm. This appliance is not
intended for use by young children or infirm persons
without supervision.
• This product is not intended for use by persons (including
children) suffering from diminished physical, sensory or
mental abilities; lack of experience, knowledge or skills
unless they are supervised by a person responsible for their
safety. Children should never be left alone with this product.
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.
Side Handle (Fig. A–B)
WARNING: To reduce the risk of personal injury, ALWAYS
operate the tool with the side handle properly installed.
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 2 clamps to the front of the gear case and may
be rotated 360˚ to permit right- or left-hand use.
Mounting the Straight Side Handle (Fig. B)
1. Widen the ring opening of the side handle 2 by rotating it
2. Place the assembly onto the tool by the putting the nose of
the tool through the steel ring 9 and onto the collar 3 past
the bit holder and sleeve.
3. Rotate the side handle 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.
4. Lock the side handle mounting assembly in place by
securely tightening the handle 2 rotating it clockwise so
that the assembly will not rotate.
Bit and Bit Holder
Operation Modes (Fig. E)
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.
The rotary hammer can be fitted with various chisel bits
depending on the desired application. Use sharp drill
bits only.
WARNING: Do not select the operating mode when the
tool is running.
CAUTION: Never use in Rotary Drilling or Rotary
Hammering mode with a chisel bit in the bit holder.
Personal injury and damage to the the tool may result.
Your tool is equipped with a mode selector dial 4 to select the
mode appropriate to desired operation.
Rotary Drilling
Dry diamond coring
Drilling into concrete and masonry
Hammering only
Light chipping
Inserting and Removing SDS Bits (Fig. C)
1. Pull back the locking sleeve 8 and insert the bit shank. The
bit shank must be clean.
2. Turn the bit slightly until the sleeve snaps back into position.
3. Ensure the bit is properly engaged.
NOTE: The bit needs to move several centimeters in and out
of the bit holder 7 when properly engaged.
To remove the bit, pull back the locking sleeve and pull the
bit out.
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.
Proper Hand Position (Fig. D)
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 mounted side
handle, with the other hand on the main handle.
Overload Clutch
In case of jamming of a drill bit, the drive to the drill spindle
is interrupted by the overload clutch. Due to the resulting
forces, always hold the tool with both hands and take a
firm stance. After the overload, release and depress the trigger
to re-engage drive.
Mechanical Clutch
These tools are fitted with a mechanical clutch. The indication
that the clutch has activated will be an audible ratcheting
together with increased vibration.
WARNING: Drill may stall if overloaded causing a sudden
twist. Always expect the stall. Grip the drill firmly to control
the twisting action and avoid injury.
To select an operating mode:
1. Depress the mode selector release button 5 .
2. Rotate the mode selector dial so that the arrow points to the
symbol corresponding for the desired mode.
NOTE: The arrow on the mode selector dial 4 must be pointing
at a mode symbol at all times. There are no operable positions
in between. It may be necessary to briefly run the motor after
having changed from 'hammering only' to 'rotary' modes in
order to align the gears.
Performing an Application (Fig. A, E)
WARNING: Always wait until the motor has come to
a complete standstill before changing the direction
of rotation.
1. Choose and install the appropriate chuck, adapter, and/or
bit onto to the tool. Refer to Bit and Bit Holder.
2. Using the mode selector dial 4 , select the mode
appropriate to desired application. Refer to
Operation Modes.
3. Adjust the side handle 2 as necessary.
4. Place the bit/chisel on the desired location.
5. Depress the trigger switch 1 .
6. To stop the hammer, release the switch.
Recommendations for Tool Operation
• When drilling, always apply pressure in a straight line with
the bit, but do not push hard enough to stall the motor or
deflect the bit. A smooth even flow of material indicates the
proper drilling rate.
• Your hammer can be used for dry diamond drilling into
masonry up to 100 mm. For diamond drilling above this
diameter in masonry and regular large diameter diamond
drilling in masonry and concrete, we advise the use of
a dedicated diamond core drill. Follow the core bit or
manufacturer’s recommendations for using the accessory.
NOTE: Always use core bits with integral centredrill systems
and ensure the RPM (speed) of the hammer does not
exceed the maximum rated RPM of the diamond core.
-- Insert the centredrill into its holder in the centre of the
core bit.
-- Remove and unplug the machine.
-- Remove the centredrill from its holder.
-- Plug the machine in and insert the core bit into
the workpiece.
• Do not use this tool to mix or pump easily combustible
or explosive fluids (benzine, alcohol, etc.).
• Do not mix or stir inflammable liquids
labelled accordingly.
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.
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.
Your power tool requires no additional lubrication.
WARNING: Blow dirt and dust out of the main housing
with dry air as often as dirt is seen collecting in and around
the air vents. Wear approved eye protection and approved
dust mask when performing this procedure.
WARNING: Never use solvents or other harsh chemicals
for cleaning the non-metallic parts of the tool. These
chemicals may weaken the 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.
Optional 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 DeWALT recommended
accessories should be used with this product.
Various types of SDS-Max bits and chisels are available as
an option. Accessories and attachments used must be regularly
lubricated around the SDS-Max fitment.
Consult your dealer for further information on the
appropriate accessories.
Protecting the Environment
Separate collection. Products and batteries marked
with this symbol must not be disposed of with normal
household waste.
Products and batteries contain materials that can
be recovered or recycled reducing the demand for raw
materials. Please recycle electrical products and batteries
according to local provisions. Further information is available at
Belgique et
Luxembourg België
en Luxemburg
DeWALT - Belgium BVBA
Egide Walschaertsstraat 16
2800 Mechelen
Tel: NL 32 15 47 37 63
Tel: FR 32 15 47 37 64
32 15 47 37 99
Roskildevej 22
2620 Albertslund
Richard Klinger Str. 11
65510 Idstein
DeWALT (Ελλάς) Α.Ε.
EΔΡΑ-ΓΡΑΦΕΙΑ : Στράβωνος 7
& Λ. Βουλιαγμένης, Γλυφάδα 166 74, Αθήνα
SERVICE : Ημερος Τόπος 2 (Χάνι Αδάμ) – 193 00 Ασπρόπυργος
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Parc de Negocios “Mas Blau”
Edificio Muntadas, c/Bergadá, 1, Of. A6
08820 El Prat de Llobregat (Barcelona)
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In der Luberzen 42
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Black Rock, Co. Dublin
via Energypark
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Tel: Fax: 800-014353
39 039 9590200
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Holtum Noordweg 35
6121 RE BORN, Postbus 83, 6120 AB BORN
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Postboks 4613, Nydalen
0405 Oslo
Tel: Fax: 45 25 13 00
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Tel: Fax: 01 - 66116 - 0
01 - 66116 - 614
DeWALT Limited, SARL
Centro de Escritórios de Sintra Avenida
Almirante Gago Coutinho, 132/134, Edifício 14
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Tel: Fax: 214 66 75 00
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00521 Helsinki
Puh: Faksi:
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Box 94
431 22 Mölndal
Fax: 031 68 61 60
031 68 60 08
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Tel: Faks:
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Tel: Fax: 01753-567055
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VIC 3103 Australia
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