DeWalt DCH143, DCH243, DCH254, DCH253 User Manual

DCH143
DCH243
DCH253
DCH254

English (original instructions) 4

II

Copyright DEWALT

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DCH143
DCH253
DCH254

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DCH254

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ENGLISH

HEAVY-DUTY CORDLESS ROTARY HAMMERDRILL
DCH143, DCH243, DCH253, DCH254

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

DCH143 DCH243 DCH253 DCH254

Voltage VDC 14.4 18 18 18
Type 1 1 1 1
No-load speed min-1 1100 1150 1200 1200
Impact rate min-1 4350 4400 4500 4500
Impact energy (EPTA 05/2009) J 2 2.1 2.1 2.1
Maximum drilling range

in steel/wood/concrete mm 10/20/20 13/26/20 13/26/24 13/26/24
Chuck SDS Plus® SDS Plus® SDS Plus® SDS Plus
Collar diameter mm 54 54 54 54
Battery Type Li-Ion Li-Ion Li-Ion Li-Ion
Weight (without battery pack) kg 2.5 2.4 2.5 2.6

®

LPA (sound pressure) dB(A)
KPA (sound pressure uncertainty) dB(A)
LWA (sound power) dB(A)
KWA (sound power uncertainty) dB(A)

Vibration total values (triax vector sum) determined according to EN 60745:

h

m/s²

h

m/s²

h

m/s²

h

m/s²

5.4 6.0 5.4 5.4

≤ 2.5 ≤ 2.5 ≤ 2.5 ≤ 2.5

≤ 2.5 ≤ 2.5 ≤ 2.5 ≤ 2.5

Vibration emission value a
Drilling into concrete
a

Vibration emission value a
Chiselling
a

Vibration emission value a
Drilling into metal
a

Vibration emission value a
Screwdriving
ah =

=

h,HD

Uncertainty K = m/s²

=

h,Cheq

Uncertainty K = m/s²

=

h,D

Uncertainty K = m/s²

Uncertainty K = m/s²

86 86 86 86

3 3 3 3

97 97 97 97

3 3 3 3

6.6 7.4 6.6 6.6

1.5 1.5 1.5 1.5

1.5 1.5 1.5 1.5

1.5 1.5 1.5 1.5

1.5 1.5 1.5 1.5

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ENGLISH

The vibration emission level given in this information sheet has been measured in accordance with a
standardised test given in EN 60745 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

An estimation of the level of exposure to vibration should also take into account the times when

Identify additional safety measures to protect the operator from the effects of vibration such as:

Battery pack DCB140 DCB141 DCB142 DCB180 DCB181 DCB182 DCB183

Battery type Li-Ion Li-Ion Li-Ion Li-Ion Li-Ion Li-Ion Li-Ion
Voltage V
Capacity Ah 3.0 1.5 4.0 3.0 1.5 4.0 2.0
Weight kg 0.53 0.30 0.54 0.64 0.35 0.61 0.40

Charger DCB105

Mains voltage VAC 230 V
Battery type Li-Ion
Approx. charging time min 30 45 55 70

(1.5 Ah (2.0 Ah (3.0 Ah (4.0 Ah
battery packs) battery packs) battery packs) battery packs)

Weight kg 0.49

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.

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.

maintain the tool and the accessories, keep the hands warm, organisation of work patterns.

14.4 14.4 14.4 18 18 18 18

DC

Fuses:

Europe 230 V tools 10 Amperes, mains
U.K. & Ireland 230 V tools 3 Amperes, in plugs

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

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 fire.

Denotes risk of electric shock.

EC-Declaration of Conformity

MACHINERY DIRECTIVE

DCH143, DCH243, DCH253, DCH254

DEWALT declares that these products described
under Technical Data are in compliance with:
2006/42/EC, EN 60745-1, EN60745-2-6.

These products also comply with Directive
2004/108/EC 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.

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ENGLISH

Horst Grossmann
Vice President Engineering and Product
Development
D

EWALT, Richard-Klinger-Straße 11,

D-65510, Idstein, Germany

01.01.2013

WARNING: To reduce the risk of injury,

read the instruction manual.

General Power Tool Safety Warnings

WARNING! Read all safety warnings

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.

b) Do not operate power tools in explosive

c) Keep children and bystanders away while

2) ELECTRICAL SAFETY

a) Power tool plugs must match the outlet.

b) Avoid body contact with earthed or

c) Do not expose power tools to rain or wet

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

Cluttered or dark areas invite accidents.

atmospheres, such as in the presence of
flammable liquids, gases or dust. Power

tools create sparks which may ignite the dust
or fumes.

operating a power tool. Distractions can
cause you to lose control.

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.

grounded surfaces such as pipes,
radiators, ranges and refrigerators. There

is an increased risk of electric shock if your
body is earthed or grounded.

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.

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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) BATTERY TOOL USE AND CARE

a) Recharge only with the charger specified

by the manufacturer. A charger that is

suitable for one type of battery pack may
create a risk of fire when used with another
battery pack.

b) Use power tools only with specifically

designated battery packs. Use of any
other battery packs may create a risk of
injury and fire.

c) When battery pack is not in use, keep it

away from other metal objects like paper
clips, coins, keys, nails, screws or other
small metal objects that can make a
connection from one terminal to another.

Shorting the battery terminals together may
cause burns or a fire.

d) Under abusive conditions, liquid may be

ejected from the battery, avoid contact.
If contact accidentally occurs, flush with
water. If liquid contacts eyes, additionally
seek medical help. Liquid ejected from the

battery may cause irritation or burns.

6) 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 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. Contact with a “live” wire will make

exposed metal parts of the tool “live” and could
give the operator an electrical 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.

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ENGLISH

• 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.

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.

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

The date code, which also includes the year of
manufacture, is printed into the housing surface that
forms the mounting joint between tool and battery.

Example:

2013 XX XX

Year of Manufacture

Important Safety Instructions for All
Battery Chargers

SAVE THESE INSTRUCTIONS: This manual
contains important safety and operating instruc tions
for the DCB105 battery charger.

• Before using the charger, read all instructions
and cautionary markings on charger, battery
pack and product using the battery pack.

CAUTION: Children should be

NOTICE: Under certain conditions, with

• DO NOT attempt to charge the battery pack

• These chargers are not intended for

• Do not expose charger to rain or snow.

• Pull by plug rather than cord when

WARNING: Shock hazard. Do not allow

any liquid to get inside charger. Electric
shock may result.

CAUTION: Burn hazard. To reduce

the risk of injury, charge only DEWALT
rechargeable battery packs. Other types
of batteries may overheat and burst
resulting in personal injury and property
damage.

supervised to ensure that they do not
play with the appliance.

the charger plugged in to the power
supply, the exposed charging contacts
inside the charger can be shorted by
foreign material. Foreign materials of
a conductive nature such as, but not
limited to, steel wool, aluminum foil or
any buildup of metallic particles should
be kept away from charger cavities.
Always unplug the charger from the
power supply when there is no battery
pack in the cavity. Unplug charger
before attempting to clean.

with any chargers other than the ones in
this manual. The charger and battery pack are

specifically designed to work together.

any uses other than charging DEWALT
rechargeable batteries. Any other uses

may result in risk of fire, electric shock or
electrocution.

disconnecting charger. This will reduce risk
of damage to electric plug and cord.

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• Make sure that cord is located so that it will
not be stepped on, tripped over or otherwise
subjected to damage or stress.

• Do not use an extension cord unless it
is absolutely necessary. Use of improper

extension cord could result in risk of fire,
electric shock or electrocution.

• When operating a charger outdoors, always
provide a dry location and use an extension
cord suitable for outdoor use. Use of a cord

suitable for outdoor use reduces the risk of
electric shock.

• Do not block the ventilation slots on the
charger. The ventilation slots are located
on the top and sides of the charger. Place

the charger in a position away from any heat
source.

• Do not operate charger with damaged cord
or plug — have them replaced immediately.

• Do not operate charger if it has received
a sharp blow, been dropped or otherwise
damaged in any way. Take it to an authorised

service centre.

• Do not disassemble the charger; take it to
an authorised service centre when service or
repair is required. Incorrect reassembly may

result in a risk of electric shock, electrocution or
fire.

• In case of damaged power supply cord the
supply cord must be replaced immediately by
the manufacturer, its service agent or similar
qualified person to prevent any hazard.

• Disconnect the charger from the outlet
before attempting any cleaning. This will
reduce the risk of electric shock. Removing

the battery pack will not reduce this risk.

• NEVER attempt to connect 2 chargers together.

• The charger is designed to operate on
standard 230 V household electrical power.
Do not attempt to use it on any other
voltage. This does not apply to the vehicular

charger.

SAVE THESE INSTRUCTIONS

Chargers

The DCB105 charger accepts 10.8 V, 14.4 V and
18 V Li-Ion (DCB121, DCB123, DCB140, DCB141,
DCB142, DCB180, DCB181, DCB182 and
DCB183) battery packs.

This charger requires no adjustment and is designed
to be as easy as possible to operate.

Charging Procedure (fi g. 4)

1. Plug the charger into an appropriate 230 V
outlet before inserting the battery pack.

2. Insert the battery pack (f) into the charger,
making sure the pack is fully seated in the
charger. The red (charging) light will blink
continuously indicating that the charging
process has started.

3. The completion of charge will be indicated by
the red light remaining ON continuously. The
pack is fully charged and may be used at this
time or left in the charger.

NOTE: To ensure maximum performance and life of
Li-Ion batteries, charge the battery pack fully before
first use.

Charging Process

Refer to the table below for the state of charge of
the battery pack.

State of charge

charging –– –– –– ––

fully charged –––––––––––––––––

hot/cold pack delay –– • –– • –– • –– •

x problem pack or charger • • • • • • • • • • • •

problem powerline •• •• •• •• •• ••

This charger will not charge a faulty battery pack.
The charger will indicate faulty battery by refusing to
light or by displaying problem pack or charger blink
pattern.

NOTE: This could also mean a problem with a
charger.

If the charger indicates a problem, take the charger
and battery pack to be tested at an authorised
service centre.

Hot/Cold Pack Delay

When the charger detects a battery that is too hot
or too cold, it automatically starts a hot/cold pack
delay, suspending charging until the battery has
reached an appropriate temperature. The charger
then automatically switches to the pack charging
mode. This feature ensures maximum battery life.

XR Li-Ion tools are designed with an Electronic
Protection System that will protect the battery
against overloading, overheating or deep discharge.

The tool will automatically turn off if the Electronic
Protection System engages. If this occurs, place the
Li-Ion battery on the charger until it is fully charged.

9