DeWalt D25901 User Manual
D25901
English (original instructions) 4
Français (traduction de la notice d’instructions originale) 10
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Copyright DEWALT
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ENGLISH
DEMOLITION HAMMER
D25901
Congratulations!
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
D25901
Voltage V 220–240
120
Type 2
Frequency Hz 50/60
Power input W 1,550
Impact rate min-1 1,050–2,100
Impact energy (EPTA 05/2009) J 19
Tool holder SDS Max
Chisel positions 12
Weight kg 10.5
®
Defi nitions: 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
WARNING: Indicates a potentially
CAUTION: Indicates a potentially
NOTICE: Indicates a practice not
Denotes risk of electric shock.
Denotes risk of fire.
WARNING: To reduce the risk of injury,
hazardous situation which, if not avoided,
will result in death or serious injury.
hazardous situation which, if not
avoided, could result in death or
serious injury.
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
related to personal injury which, if
not avoided, may result in property
damage.
read the instruction manual.
General Power Tool Safety Warnings
WARNING! 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 batteryoperated (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.
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ENGLISH
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
Demolition Hammers
• 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 tools by insulated gripping
surfaces when performing an operation
where the cutting tool may contact hidden
wiring or its own cord. Cutting accessory
Contacting a “live” wire may make exposed
metal parts of the tool “live” and shock the
operator.
• Be certain that the material being drilled does
not conceal electric or gas service and that
their locations have been verified with the utility
companies.
• 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
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ENGLISH
through or encountering hard materials such as
re-bar may be hazardous as well. Tighten the
side handle securely before use.
• Ensure the chisel is secured in place before
operating the tool.
• In cold-weather conditions or when the tool
has not been used for a longer period of time,
let the tool run with no load for several minutes
before use.
• When working above ground level ensure the
area below is clear.
• Do not touch the chisel or the parts close to the
chisel immediately after operation, as they may
be extremely hot and cause burns to the skin.
• Always direct the power cable to the rear, away
from the chisel.
• 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.
Residual Risks
The following risks are inherent to the use of
demolition hammers:
– Injuries caused by touching the 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.
Markings on Tool
The following pictograms are shown on the tool:
Read instruction manual
before use.
Wear ear protection.
Wear eye protection.
DATE CODE POSITION (FIG. 1)
The date code (g), which also includes the year of
manufacture, is printed into the housing.
Example:
2013 XX XX
Year of Manufacture
Package Contents
The package contains:
1 Demolition hammer
1 Side handle
1 Pointed chisel
1 Plastic case
1 Instruction manual
1 Exploded drawing
• 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.
Description (fi g. 1)
WARNING: Never modify the power
tool or any part of it. Damage or
personal injury could result.
a. On/off switch
b. Main handle
c. Electronic impact energy control dial
d. Chisel position index collar
e. Tool holder/sleeve
f. Side handle
INTENDED USE
The D25901 heavy-duty demolition hammer is
designed for heavy-duty demolition, chipping and
chasing applications.
DO NOT use under wet conditions or in presence of
flammable liquids or gases.
These heavy-duty demolition hammers are
professional power tools. DO NOT let children come
into contact with the tool. Supervision is required
when inexperienced operators use this tool.
• 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.
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Soft Start Feature
The soft start feature allows the impact rate to build
up more slowly, thus preventing the chisel or point
from “bouncing” around on the masonry when
starting up.
Active Vibration Control
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.
Electronic Impact Energy Control
(fi g. 1)
The electronic impact energy control (c) offers the
following advantages:
• use of smaller accessories without risk of
breakage
• minimised break-out when chiselling soft or
brittle materials
• optimal tool control for precise chiselling
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 EN 60745; therefore no
earth wire is required.
WARNING: 120 V units have to
be operated via a fail-safe isolating
transformer with an earth screen
between the primary and secondary
winding.
If the supply cord is damaged, it must be replaced
by a specially prepared cord available through the
DEWALT service organisation.
Mains Plug Replacement
(Middle East and Africa)
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
If an extension cable is required, use an approved
extension cable suitable for the power input of this
tool (see Technical Data). The minimum conductor
size is 1 mm
When using a cable reel, always unwind the cable
completely.
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; the maximum length is 30 m.
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of
WARNING: Always wear gloves when
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing setups or when making repairs. Be sure
the trigger switch is in the OFF position.
An accidental start-up can cause injury.
changing accessories. The exposed
metal parts on the tool and accessory
may become extremly hot during
operation.
Inserting and Removing SDS Max®
Accessories (fi g. 3, 4)
This machine uses SDS Max® chisels (refer to the
inset in Figure 4 for a cross-section of a chisel
shank).
Only DEWALT recommended accessories should be
used with this product.
1. Clean the chisel shank.
WARNING: Do not apply lubricant to
2. Insert the chisel shank into the tool holder/
3. Pull on the chisel to check if it is properly
4. To remove a chisel, pull back the tool holder/
the machine.
sleeve (e). Press and turn the chisel slightly until
the sleeve snaps into position.
locked. The hammering function requires
the chisel to be able to move axially several
centimetres when locked in the tool holder.
sleeve (e) and pull the chisel out of the tool
holder.
Indexing the Chisel Position (fi g. 5)
The chisel can be indexed and locked into
12 different positions.
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