Makita DHR400 User manual

INSTRUCTION MANUAL
MANUEL D'INSTRUCTION
MANUAL DE INSTRUCCIONES
Cordless Rotary Hammer
Perforateur Sans Fil
Martillo Rotativo Inalámbrico
DHR400
IMPORTANT: Read Before Using.
IMPORTANT : Lire avant usage.
IMPORTANTE: Lea antes de usar.

2ENGLISH
ENGLISH (Original instructions)
SPECIFICATIONS
Model: DHR400
Capacities Carbide-tipped bit 40 mm (1-9/16")
Core bit 105 mm (4-1/8")
No load speed (RPM) 250 - 500/min
Blows per minute 1,450 - 2,900/min
Overall length 473 mm (18-5/8")
Rated voltage D.C. 36 V
Net weight 7.3 - 8.1 kg (16.1 - 17.9 lbs)
• Due to our continuing program of research and development, the specications herein are subject to change without notice.
• Specications and battery cartridge may di󰀨er from country to country.
• The weight may di󰀨er depending on the attachment(s), including the battery cartridge. The lightest and heavi-
est combinations, according to EPTA-Procedure 01/2014, are shown in the table.
Applicable battery cartridge and charger
Battery cartridge BL1815N / BL1820B / BL1830 / BL1830B / BL1840B / BL1850B / BL1860B
Charger DC18RC / DC18RD / DC18RE / DC18SD / DC18SE / DC18SF / DC18SH
• Some of the battery cartridges and chargers listed above may not be available depending on your region of residence.
WARNING: Only use the battery cartridges and chargers listed above. Use of any other battery cartridges
and chargers may cause injury and/or re.
Recommended cord connected power source
Battery adapter BAP182
Portable power pack PDC01 / PDC1200
• The cord connected power source(s) listed above may not be available depending on your region of residence.
• Before using the cord connected power source, read instruction and cautionary markings on them.
SAFETY WARNINGS
General power tool safety warnings
WARNING: Read all safety warnings, instruc-
tions, illustrations and specications provided with this
power tool. Failure to follow all instructions listed below
may result in electric shock, re and/or serious injury.
Save all warnings and instruc-
tions for future reference.
The term "power tool" in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
Work area safety
1. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
2. Do not operate power tools in explosive atmo-
spheres, such as in the presence of ammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
3.
Keep children and bystanders away while operating a
power tool. Distractions can cause you to lose control.
Electrical Safety
1. 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. Unmodied plugs and matching outlets will
reduce risk of electric shock.
2. Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of elec-
tric shock if your body is earthed or grounded.
3. Do not expose power tools to rain or wet con-
ditions. Water entering a power tool will increase
the risk of electric shock.
4. 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.
5. 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.

3ENGLISH
6. If operating a power tool in a damp location is
unavoidable, use a ground fault circuit inter-
rupter (GFCI) protected supply. Use of a GFCI
reduces the risk of electric shock.
7.
Power tools can produce electromagnetic elds
(EMF) that are not harmful to the user. However,
users of pacemakers and other similar medical
devices should contact the maker of their device and/
or doctor for advice before operating this power tool.
Personal Safety
1. 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 inuence of drugs, alcohol or med-
ication. A moment of inattention while operating
power tools may result in serious personal injury.
2. 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.
3. Prevent unintentional starting. Ensure the
switch is in the o󰀨-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
your nger on the switch or energising power tools
that have the switch on invites accidents.
4. 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.
5. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
6. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewel-
lery or long hair can be caught in moving parts.
7. 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.
8. Do not let familiarity gained from frequent use
of tools allow you to become complacent and
ignore tool safety principles. A careless action
can cause severe injury within a fraction of a
second.
9. Always wear protective goggles to protect
your eyes from injury when using power tools.
The goggles must comply with ANSI Z87.1 in
the USA.
It is an employer's responsibility to enforce the
use of appropriate safety protective equipment
by the tool operators and by other persons in
the immediate working area.
Power tool use and care
1. 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.
2. Do not use the power tool if the switch does
not turn it on and o󰀨. Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
3. Disconnect the plug from the power source
and/or remove the battery pack, if detachable,
from the power tool before making any adjust-
ments, changing accessories, or storing power
tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
4.
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.
5. Maintain power tools and accessories. Check for
misalignment or binding of moving parts, break-
age of parts and any other condition that may
a󰀨ect the power tool’s operation. If damaged, have
the power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
6. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits
etc. in accordance with these instructions, tak-
ing into account the working conditions and
the work to be performed. Use of the power tool
for operations di󰀨erent from those intended could
result in a hazardous situation.
8.
Keep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles and
grasping surfaces do not allow for safe handling and
control of the tool in unexpected situations.
9. When using the tool, do not wear cloth work
gloves which may be entangled. The entangle-
ment of cloth work gloves in the moving parts may
result in personal injury.
Battery tool use and care
1. Recharge only with the charger specied by
the manufacturer. A charger that is suitable for
one type of battery pack may create a risk of re
when used with another battery pack.
2. Use power tools only with specically desig-
nated battery packs. Use of any other battery
packs may create a risk of injury and re.
3. 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 termi-
nals together may cause burns or a re.
4.
Under abusive conditions, liquid may be ejected
from the battery; avoid contact. If contact acci-
dentally occurs, ush with water. If liquid contacts
eyes, additionally seek medical help. Liquid ejected
from the battery may cause irritation or burns.
5. Do not use a battery pack or tool that is dam-
aged or modied. Damaged or modied batteries
may exhibit unpredictable behaviour resulting in
re, explosion or risk of injury.
6. Do not expose a battery pack or tool to re or
excessive temperature. Exposure to re or tem-
perature above 130 °C may cause explosion.
7. Follow all charging instructions and do not
charge the battery pack or tool outside the
temperature range specied in the instruc-
tions. Charging improperly or at temperatures
outside the specied range may damage the
battery and increase the risk of re.

4ENGLISH
Service
1. Have your power tool serviced by a qualied
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
2. Never service damaged battery packs. Service
of battery packs should only be performed by the
manufacturer or authorized service providers.
3. Follow instruction for lubricating and chang-
ing accessories.
4. Do not modify or attempt to repair the appli-
ance or the battery pack except as indicated in
the instructions for use and care.
CORDLESS ROTARY HAMMER
SAFETY WARNINGS
1. Wear ear protectors. Exposure to noise can
cause hearing loss.
2. Use auxiliary handle(s), if supplied with the
tool. Loss of control can cause personal injury.
3. Hold power tool by insulated gripping sur-
faces, when performing an operation where
the cutting accessory may contact hidden
wiring. Cutting accessory contacting a "live"
wire may make exposed metal parts of the power
tool "live" and could give the operator an electric
shock.
4. Wear a hard hat (safety helmet), safety glasses
and/or face shield. Ordinary eye or sun glasses
are NOT safety glasses. It is also highly recom-
mended that you wear a dust mask and thickly
padded gloves.
5. Be sure the bit is secured in place before
operation.
6. Under normal operation, the tool is designed
to produce vibration. The screws can come
loose easily, causing a breakdown or accident.
Check tightness of screws carefully before
operation.
7. In cold weather or when the tool has not been
used for a long time, let the tool warm up for
a while by operating it under no load. This
will loosen up the lubrication. Without proper
warm-up, hammering operation is di󰀩cult.
8. Always be sure you have a rm footing. Be
sure no one is below when using the tool in
high locations.
9. Hold the tool rmly with both hands.
10. Keep hands away from moving parts.
11. Do not leave the tool running. Operate the tool
only when hand-held.
12. Do not point the tool at any one in the area
when operating. The bit could y out and
injure someone seriously.
13. Do not touch the bit, parts close to the bit, or
workpiece immediately after operation; they
may be extremely hot and could burn your
skin.
14. Some material contains chemicals which may
be toxic. Take caution to prevent dust inhala-
tion and skin contact. Follow material supplier
safety data.
15. Always be sure that the tool is switched
o󰀨 and the battery cartridge and the bit are
removed before handing the tool to other
person.
SAVE THESE INSTRUCTIONS.
WARNING: DO NOT let comfort or familiarity
with product (gained from repeated use) replace
strict adherence to safety rules for the subject
product. MISUSE or failure to follow the safety
rules stated in this instruction manual may cause
serious personal injury.
Symbols
The followings show the symbols used for tool.
volts
direct current
no load speed
revolutions or reciprocation per minute
number of blow
Important safety instructions for
battery cartridge
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using
battery.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively
shorter, stop operating immediately. It may
result in a risk of overheating, possible burns
and even an explosion.
4. If electrolyte gets into your eyes, rinse them
out with clear water and seek medical atten-
tion right away. It may result in loss of your
eyesight.
5. Do not short the battery cartridge:
(1) Do not touch the terminals with any con-
ductive material.
(2) Avoid storing battery cartridge in a con-
tainer with other metal objects such as
nails, coins, etc.
(3) Do not expose battery cartridge to water
or rain.
A battery short can cause a large current
ow, overheating, possible burns and even a
breakdown.
6. Do not store the tool and battery cartridge in
locations where the temperature may reach or
exceed 50 °C (122 °F).
7. Do not incinerate the battery cartridge even if
it is severely damaged or is completely worn
out. The battery cartridge can explode in a re.

5ENGLISH
8. Be careful not to drop or strike battery.
9. Do not use a damaged battery.
10. The contained lithium-ion batteries are subject
to the Dangerous Goods Legislation require-
ments.
For commercial transports e.g. by third parties,
forwarding agents, special requirement on pack-
aging and labeling must be observed.
For preparation of the item being shipped, consult-
ing an expert for hazardous material is required.
Please also observe possibly more detailed
national regulations.
Tape or mask o󰀨 open contacts and pack up the
battery in such a manner that it cannot move
around in the packaging.
11. When disposing the battery cartridge, remove
it from the tool and dispose of it in a safe
place. Follow your local regulations relating to
disposal of battery.
12. Use the batteries only with the products
specied by Makita. Installing the batteries to
non-compliant products may result in a re, exces-
sive heat, explosion, or leak of electrolyte.
13. If the tool is not used for a long period of time,
the battery must be removed from the tool.
SAVE THESE INSTRUCTIONS.
CAUTION: Only use genuine Makita batteries.
Use of non-genuine Makita batteries, or batteries that
have been altered, may result in the battery bursting
causing res, personal injury and damage. It will
also void the Makita warranty for the Makita tool and
charger.
Tips for maintaining maximum
battery life
1. Charge the battery cartridge before completely
discharged. Always stop tool operation and
charge the battery cartridge when you notice
less tool power.
2. Never recharge a fully charged battery car-
tridge. Overcharging shortens the battery
service life.
3. Charge the battery cartridge with room tem-
perature at 10 °C - 40 °C (50 °F - 104 °F). Let
a hot battery cartridge cool down before
charging it.
4. Charge the battery cartridge if you do not use
it for a long period (more than six months).
Important safety instructions for
wireless unit
1. Do not disassemble or tamper with the wire-
less unit.
2. Keep the wireless unit away from young chil-
dren. If accidentally swallowed, seek medical
attention immediately.
3. Use the wireless unit only with Makita tools.
4. Do not expose the wireless unit to rain or wet
conditions.
5. Do not use the wireless unit in places where
the temperature exceeds 50°C (122°F).
6. Do not operate the wireless unit in places
where medical instruments, such as heart
pace makers are nearby.
7.
Do not operate the wireless unit in places where
automated devices are nearby. If operated, auto-
mated devices may develop malfunction or error.
8. Do not operate the wireless unit in places
under high temperature or places where
static electricity or electrical noise could be
generated.
9. The wireless unit can produce electromagnetic
elds (EMF) but they are not harmful to the
user.
10. The wireless unit is an accurate instrument. Be
careful not to drop or strike the wireless unit.
11. Avoid touching the terminal of the wireless
unit with bare hands or metallic materials.
12. Always remove the battery on the product
when installing the wireless unit into it.
13. When opening the lid of the slot, avoid the
place where dust and water may come into the
slot. Always keep the inlet of the slot clean.
14. Always insert the wireless unit in the correct
direction.
15. Do not press the wireless activation button
on the wireless unit too hard and/or press the
button with an object with a sharp edge.
16. Always close the lid of the slot when
operating.
17. Do not remove the wireless unit from the slot
while the power is being supplied to the tool.
Doing so may cause a malfunction of the wireless
unit.
18. Do not remove the sticker on the wireless unit.
19. Do not put any sticker on the wireless unit.
20. Do not leave the wireless unit in a place where
static electricity or electrical noise could be
generated.
21. Do not leave the wireless unit in a place sub-
ject to high heat, such as a car sitting in the
sun.
22. Do not leave the wireless unit in a dusty or
powdery place or in a place corrosive gas
could be generated.
23. Sudden change of the temperature may bedew
the wireless unit. Do not use the wireless unit
until the dew is completely dried.
24. When cleaning the wireless unit, gently wipe
with a dry soft cloth. Do not use benzine, thin-
ner, conductive grease or the like.
25. When storing the wireless unit, keep it in the
supplied case or a static-free container.
26. Do not insert any devices other than Makita
wireless unit into the slot on the tool.
27. Do not use the tool with the lid of the slot dam-
aged. Water, dust, and dirt come into the slot may
cause malfunction.
28. Do not pull and/or twist the lid of the slot more
than necessary. Restore the lid if it comes o󰀨
from the tool.
29. Replace the lid of the slot if it is lost or
damaged.
SAVE THESE INSTRUCTIONS.

6ENGLISH
FUNCTIONAL
DESCRIPTION
CAUTION: Always be sure that the tool is
switched o󰀨 and the battery cartridge is removed
before adjusting or checking function on the tool.
Installing or removing battery
cartridge
CAUTION: Always switch o󰀨 the tool before
installing or removing of the battery cartridge.
CAUTION: Hold the tool and the battery car-
tridge rmly when installing or removing battery
cartridge. Failure to hold the tool and the battery
cartridge rmly may cause them to slip o󰀨 your hands
and result in damage to the tool and battery cartridge
and a personal injury.
1
2
3
► 1. Red indicator 2. Button 3. Battery cartridge
To remove the battery cartridge, slide it from the tool
while sliding the button on the front of the cartridge.
To install the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Insert it all the way until it locks in place
with a little click. If you can see the red indicator on the
upper side of the button, it is not locked completely.
CAUTION: Always install the battery cartridge
fully until the red indicator cannot be seen. If not,
it may accidentally fall out of the tool, causing injury to
you or someone around you.
CAUTION: Do not install the battery cartridge
forcibly. If the cartridge does not slide in easily, it is
not being inserted correctly.
Indicating the remaining battery
capacity
Only for battery cartridges with the indicator
1
2
► 1. Indicator lamps 2. Check button
Press the check button on the battery cartridge to indi-
cate the remaining battery capacity. The indicator lamps
light up for a few seconds.
Indicator lamps Remaining
capacity
Lighted O󰀨 Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have
malfunctioned.
NOTE: Depending on the conditions of use and the
ambient temperature, the indication may di󰀨er slightly
from the actual capacity.
Tool / battery protection system
The tool is equipped with a tool/battery protection sys-
tem. This system automatically cuts o󰀨 power to the
motor to extend tool and battery life. The tool will auto-
matically stop during operation if the tool or battery is
placed under one of the following conditions:
Overload protection
When the battery is operated in a manner that causes
it to draw an abnormally high current, the tool automat-
ically stops without any indication. In this situation, turn
the tool o󰀨 and stop the application that caused the tool
to become overloaded. Then turn the tool on to restart.

7ENGLISH
Overheat protection
When the tool or battery is overheated, the tool stops
automatically and the lamp blinks. In this case, let the
tool and battery cool before turning the tool on again.
Overdischarge protection
When the battery capacity is not enough, the tool stops automatically.
In this case, remove the battery from the tool and charge the battery.
Switch action
WARNING: Before installing the battery car-
tridge into the tool, always check to see that the
switch trigger actuates properly and returns to
the "OFF" position when released.
CAUTION: When not operating the tool,
depress the trigger-lock button from side to
lock the switch trigger in the OFF position.
BA
2
1
► 1. Switch trigger 2. Trigger-lock button
To prevent the switch trigger from accidentally pulled, the trig-
ger-lock button is provided. To start the tool, depress the trigger-lock
button from A side and pull the switch trigger. Release the switch
trigger to stop. After use, press in the trigger-lock button from B side.
Speed change
The revolutions and blows per minute can be adjusted by turning the
adjusting dial. The dial is marked 1 (lowest speed) to 5 (full speed).
1
► 1. Adjusting dial
Refer to the table below for the relationship between the
number on the adjusting dial and the revolutions and
blows per minute.
Number Revolutions per
minute
Blows per minute
5500 2,900
4470 2,700
3380 2,150
2290 1,650
1250 1,450
CAUTION: Do not turn the adjusting dial when
the tool is running. Failure to do so may result in
the loss of control of the tool and cause an injury.
NOTICE: If the tool is operated continuously at
low speed for a long time, the motor will get over-
loaded, resulting in tool malfunction.
NOTICE: The speed adjusting dial can be turned
only as far as 5 and back to 1. Do not force it past
5 or 1, or the speed adjusting function may no
longer work.
NOTE: Soft no-load rotation function
When the speed adjusting dial is set to "3" or higher,
the tool automatically reduces the speed at no-load to
reduce the vibration under no-load. Once operation
starts with a bit against concrete, blows per minute
increase and reach the numbers as shown in the
table. When temperature is low and there is less
uidity in grease, the tool may not have this function
even with the motor rotating.
Lighting up the front lamp
1
► 1. Lamp
CAUTION: Do not look in the light or see the
source of light directly.
Pull the switch trigger to light up the lamp. The lamp
keeps on lighting while the switch trigger is being pulled.
The lamp goes out approximately 10 seconds after
releasing the switch trigger.

8ENGLISH
CAUTION: If the lamp goes o󰀨 after blinking
for a few seconds, the active feedback sensing
technology or the soft no-load rotation function
is not working properly. Ask your local Makita
Service Center for repair.
NOTE: Use a dry cloth to wipe the dirt o󰀨 the lens of
the lamp. Be careful not to scratch the lens of lamp, or
it may lower the illumination.
Selecting the action mode
NOTICE: Do not rotate the action mode chang-
ing knob when the tool is running. The tool will be
damaged.
NOTICE: To avoid rapid wear on the mode
change mechanism, be sure that the action mode
changing knob is always positively located in one
of the three action mode positions.
Rotation with hammering
For drilling in concrete, masonry, etc., rotate the action
mode changing knob to the symbol. Use a car-
bide-tipped drill bit.
1
2
► 1. Action mode changing knob 2. Pointer
Hammering only
For chipping, scaling or demolition operations, rotate
the action mode changing knob to the symbol. Use a
bull point, cold chisel, scaling chisel, etc.
1
2
► 1. Pointer 2. Action mode changing knob
Torque limiter
NOTICE: As soon as the torque limiter actuates,
switch o󰀨 the tool immediately. This will help pre-
vent premature wear of the tool.
NOTICE: Drill bits such as hole saw, which tend
to pinch or catch easily in the hole, are not appro-
priate for this tool. This is because they will cause
the torque limiter to actuate too frequently.
The torque limiter will actuate when a certain torque level
is reached. The motor will disengage from the output
shaft. When this happens, the drill bit will stop turning.
Electronic function
The tool is equipped with the electronic functions for
easy operation.
• Constant speed control
The speed control function provides the constant
rotation speed regardless of load conditions.
• Active Feedback sensing Technology
If the tool is swung at the predetermined accelera-
tion during operation, the motor is forcibly stopped
to reduce the burden on the wrist.
NOTE:
This function does not work if the acceleration does
not reach the predetermined one when the tool is swung.
NOTE: If the bit is swung at the predetermined
acceleration during chipping, scaling, or demolishing,
the motor is forcibly stopped. In this case, release
the switch trigger, and then pull the switch trigger to
restart the tool.
Electric brake
This tool is equipped with an electric brake. If the tool
consistently fails to quickly stop after the switch trigger is
released, have the tool serviced at a Makita service center.
ASSEMBLY
CAUTION: Always be sure that the tool is
switched o󰀨 and the battery cartridge is removed
before carrying out any work on the tool.
Side handle

9ENGLISH
CAUTION: Use the side handle only when
chipping, scaling or demolishing. Do not use it
when drilling in concrete, masonry, etc. The tool
cannot be held properly with this side handle when
drilling.
1
2
► 1. Side handle 2. Clamp nut
The side handle can be swung 360° on the vertical
and secured at any desired position. It also secures
at eight di󰀨erent positions back and forth on the hori-
zontal. Loosen the clamp nut to swing the side handle
to a desired position, and then tighten the clamp nut
securely.
Side grip (auxiliary handle)
CAUTION: Always use the side grip to ensure
safe operation.
CAUTION: After installing or adjusting the
side grip, make sure that the side grip is rmly
secured.
The side grip swings around to either side, allowing
easy handling of the tool in any position. Loosen the
side grip by turning it counterclockwise, swing it to the
desired position and then tighten it by turning clockwise.
1
► 1. Side grip
Grease
Coat the shank end of the drill bit beforehand with a
small amount of grease (about 0.5 - 1 g).
This chuck lubrication assures smooth action and lon-
ger service life.
Installing or removing drill bit
Clean the shank end of the drill bit and apply grease
before installing the drill bit.
1
2
► 1. Shank end 2. Grease
Insert the drill bit into the tool. Turn the drill bit and push
it in until it engages.
After installing the drill bit, always make sure that the
drill bit is securely held in place by trying to pull it out.
1
► 1. Drill bit
To remove the drill bit, pull the chuck cover down all the
way and pull the drill bit out.
1
2
► 1. Drill bit 2. Chuck cover

10 ENGLISH
Chisel angle (when chipping,
scaling or demolishing)
The chisel can be secured at the desired angle. To
change the chisel angle, rotate the action mode chang-
ing knob to the O symbol. Turn the chisel to the desired
angle.
1 2
► 1. Action mode changing knob 2. Pointer
Rotate the action mode changing knob to the sym-
bol. Then make sure that the chisel is securely held in
place by turning it slightly.
Depth gauge
The depth gauge is convenient for drilling holes of
uniform depth.
Press and hold the lock button, and then insert the
depth gauge into the hex hole.
1 2
► 1. Depth gauge 2. Lock button
Make sure that the toothed side of the depth gauge
faces the marking.
12
► 1. Marking 2. Toothed side
Adjust the depth gauge by moving it back and forth
while pressing the lock button. After the adjustment,
release the lock button to lock the depth gauge.
NOTE: Make sure that the depth gauge does not
touch the main body of the tool when attaching it.
Dust extractor attachment
Optional accessory
Installing the dust extractor
attachment
1. Loosen the side grip on the tool.
2. Install the dust cover so that the claws of the dust
cover t in the grooves between the tool and the side
grip.
1
2
3
► 1. Dust cover 2. Claw 3. Groove
3. Tighten the side grip securely.

11 ENGLISH
4. Set the suitable bellows or dust cover extension
for your work. When you use bellows, attach the joint to
its top. When you stack two bellows, connect them with
the joint.
1
2
34
► 1. Dust cover extension 2. Dust cover 3. Joint
4. Bellows
Connecting the tool to the vacuum
cleaner
1. Attach the holder joint to the tool, and then attach
the hose holder to the holder joint.
1
2
► 1. Holder joint 2. Hose holder
2. Fix the hose to the hose holder.
1
► 1. Hose holder
NOTE: Use joint 25 to connect the hose and the dust
cover if necessary.
Using depth gauge for drilling
operation
When you stack two bellows, attach the depth gauge
extension to the depth gauge.
1
► 1. Depth gauge extension

12 ENGLISH
Dust extractor attachment (for
hammering only)
Optional accessory
1. Install the hose holder.
When the side handle is installed to tool, loosen the
clamp nut, and then remove the hex bolt. Install the
hose holder with the hex bolt and the clamp nut by
tightening the clamp nut rmly.
1
2
3
► 1. Bolt 2. Hose holder 3. Clamp nut
When the side grip is installed to the tool, loosen the
side grip, mount the hose holder to the shaft, and then
tighten the side grip rmly.
1
2
3
► 1. Hose holder 2. Shaft 3. Side grip
2. Attach the holder joint to the tool, and then attach
the hose holder to the holder joint.
1
2
► 1. Holder joint 2. Hose holder
3. Attach the dust cover and the hose to the tool, and
then x the hose to the hose holders.
12 3
3
► 1. Dust cover 2. Hose 3. Hose holder
4. Connect the hose to the hose of the vacuum
cleaner with the hose joint.
NOTE: If the hose is not included, attach the dust
cover to the cleaner's joint or attach it to Makita's
hose ø28.

13 ENGLISH
5. Adjust the distance between the dust cover and
the tip of the chisel or bull point. The recommended
distance is 30 mm (1-3/16") to 100 mm (3-15/16").
(1)
► (1) 30 mm (1-3/16") to 100 mm (3-15/16")
OPERATION
CAUTION: Always use the side grip (auxiliary
handle) and rmly hold the tool by both side grip
and switch handle during operations.
CAUTION: Always make sure that the work-
piece is secured before operation.
CAUTION: Do not pull the tool out forcibly
even the bit gets stuck. Loss of control may
cause injury.
NOTE: If the battery cartridge is in low temperature,
the tool’s capability may not be fully obtained. In this
case, warm up the battery cartridge by using the
tool with no load for a while to fully obtain the tool’s
capability.
Hammer drilling operation
CAUTION: There is tremendous and sudden
twisting force exerted on the tool/drill bit at the time of
hole break-through, when the hole becomes clogged
with chips and particles, or when striking reinforcing
rods embedded in the concrete. Always use the side
grip (auxiliary handle) and rmly hold the tool by
both side grip and switch handle during opera-
tions. Failure to do so may result in the loss of control
of the tool and potentially severe injury.
Set the action mode changing knob to the symbol.
Position the drill bit at the desired location for the hole,
then pull the switch trigger. Do not force the tool. Light
pressure gives best results. Keep the tool in position
and prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at
an idle, then remove the drill bit partially from the hole.
By repeating this several times, the hole will be cleaned
out and normal drilling may be resumed.
NOTE: Eccentricity in the drill bit rotation may occur
while operating the tool with no load. The tool auto-
matically centers itself during operation. This does not
a󰀨ect the drilling precision.
Chipping/Scaling/Demolition
Set the action mode changing knob to the symbol.
Hold the tool rmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool will
not bounce around, uncontrolled.
Pressing very hard on the tool will not increase the
e󰀩ciency.

14 ENGLISH
Blow-out bulb
Optional accessory
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
WIRELESS ACTIVATION
FUNCTION
Optional accessory
What you can do with the wireless
activation function
The wireless activation function enables clean and com-
fortable operation. By connecting a supported vacuum
cleaner to the tool, you can run the vacuum cleaner
automatically along with the switch operation of the tool.
To use the wireless activation function, prepare follow-
ing items:
• A wireless unit (optional accessory)
• A vacuum cleaner which supports the wireless
activation function
The overview of the wireless activation function
setting is as follows. Refer to each section for detail
procedures.
1. Installing the wireless unit
2. Tool registration for the vacuum cleaner
3. Starting the wireless activation function
Installing the wireless unit
Optional accessory
CAUTION: Place the tool on a at and stable
surface when installing the wireless unit.
NOTICE: Clean the dust and dirt on the tool
before installing the wireless unit. Dust or dirt
may cause malfunction if it comes into the slot of the
wireless unit.
NOTICE: To prevent the malfunction caused by
static, touch a static discharging material, such
as a metal part of the tool, before picking up the
wireless unit.
NOTICE: When installing the wireless unit,
always be sure that the wireless unit is inserted
in the correct direction and the lid is completely
closed.
1. Open the lid on the tool as shown in the gure.
1
► 1. Lid
2. Insert the wireless unit to the slot and then close
the lid.
When inserting the wireless unit, align the projections
with the recessed portions on the slot.
1
2
3
4
► 1. Wireless unit 2. Projection 3. Lid 4. Recessed
portion

15 ENGLISH
When removing the wireless unit, open the lid slowly.
The hooks on the back of the lid will lift the wireless unit
as you pull up the lid.
1
2
3
► 1. Wireless unit 2. Hook 3. Lid
After removing the wireless unit, keep it in the supplied
case or a static-free container.
NOTICE: Always use the hooks on the back of
the lid when removing the wireless unit. If the
hooks do not catch the wireless unit, close the lid
completely and open it slowly again.
Tool registration for the vacuum
cleaner
NOTE: A Makita vacuum cleaner supporting the
wireless activation function is required for the tool
registration.
NOTE: Finish installing the wireless unit to the tool
before starting the tool registration.
NOTE: During the tool registration, do not pull the
switch trigger or turn on the power switch on the
vacuum cleaner.
NOTE: Refer to the instruction manual of the vacuum
cleaner, too.
If you wish to activate the vacuum cleaner along with
the switch operation of the tool, nish the tool registra-
tion beforehand.
1. Install the batteries to the vacuum cleaner and the
tool.
2. Set the stand-by switch on the vacuum cleaner to
"AUTO".
1
► 1. Stand-by switch
3. Press the wireless activation button on the vac-
uum cleaner for 3 seconds until the wireless activation
lamp blinks in green. And then press the wireless acti-
vation button on the tool in the same way.
1 2
1
2
► 1. Wireless activation button 2. Wireless activation
lamp
If the vacuum cleaner and the tool are linked success-
fully, the wireless activation lamps will light up in green
for 2 seconds and start blinking in blue.

16 ENGLISH
NOTE: The wireless activation lamps nish blinking
in green after 20 seconds elapsed. Press the wireless
activation button on the tool while the wireless acti-
vation lamp on the cleaner is blinking. If the wireless
activation lamp does not blink in green, push the wire-
less activation button briey and hold it down again.
NOTE: When performing two or more tool registra-
tions for one vacuum cleaner, nish the tool registra-
tion one by one.
Starting the wireless activation
function
NOTE: Finish the tool registration for the vacuum
cleaner prior to the wireless activation.
NOTE: Refer to the instruction manual of the vacuum
cleaner, too.
After registering a tool to the vacuum cleaner, the
vacuum cleaner will automatically runs along with the
switch operation of the tool.
1. Install the wireless unit to the tool.
2. Connect the hose of the vacuum cleaner with the
tool.
3. Set the stand-by switch on the vacuum cleaner to
"AUTO".
1
► 1. Stand-by switch
4. Push the wireless activation button on the tool
briey. The wireless activation lamp will blink in blue.
12
► 1. Wireless activation button 2. Wireless activation
lamp
5. Pull the switch trigger of the tool. Check if the
vacuum cleaner runs while the switch trigger is being
pulled.
To stop the wireless activation of the vacuum cleaner,
push the wireless activation button on the tool.
NOTE: The wireless activation lamp on the tool will
stop blinking in blue when there is no operation for
2 hours. In this case, set the stand-by switch on the
vacuum cleaner to "AUTO" and push the wireless
activation button on the tool again.
NOTE: The vacuum cleaner starts/stops with a delay.
There is a time lag when the vacuum cleaner detects
a switch operation of the tool.
NOTE: The transmission distance of the wireless unit
may vary depending on the location and surrounding
circumstances.
NOTE: When two or more tools are registered to one
vacuum cleaner, the vacuum cleaner may start run-
ning even if you don't pull the switch trigger because
another user is using the wireless activation function.

17 ENGLISH
Description of the wireless activation lamp status
1
► 1. Wireless activation lamp
The wireless activation lamp shows the status of the wireless activation function. Refer to the table below for the
meaning of the lamp status.
Status Wireless activation lamp Description
Color
On Blinking
Duration
Standby Blue 2 hours The wireless activation of the vacuum cleaner is available. The
lamp will automatically turn o󰀨 when no operation is performed
for 2 hours.
When
the tool is
running.
The wireless activation of the vacuum cleaner is available and the
tool is running.
Tool
registration
Green 20 seconds Ready for the tool registration. Waiting for the registration by the
vacuum cleaner.
2 seconds The tool registration has been nished. The wireless activation
lamp will start blinking in blue.
Cancelling
tool
registration
Red 20 seconds Ready for the cancellation of the tool registration. Waiting for the
cancellation by the vacuum cleaner.
2 seconds The cancellation of the tool registration has been nished. The
wireless activation lamp will start blinking in blue.
Others Red 3 seconds The power is supplied to the wireless unit and the wireless activa-
tion function is starting up.
O󰀨 - - The wireless activation of the vacuum cleaner is stopped.

18 ENGLISH
Cancelling tool registration for the
vacuum cleaner
Perform the following procedure when cancelling the
tool registration for the vacuum cleaner.
1. Install the batteries to the vacuum cleaner and the
tool.
2. Set the stand-by switch on the vacuum cleaner to
"AUTO".
1
► 1. Stand-by switch
3. Press the wireless activation button on the vac-
uum cleaner for 6 seconds. The wireless activation
lamp blinks in green and then become red. After that,
press the wireless activation button on the tool in the
same way.
1 2
1
2
► 1. Wireless activation button 2. Wireless activation
lamp
If the cancellation is performed successfully, the wire-
less activation lamps will light up in red for 2 seconds
and start blinking in blue.
NOTE: The wireless activation lamps nish blinking in
red after 20 seconds elapsed. Press the wireless acti-
vation button on the tool while the wireless activation
lamp on the cleaner is blinking. If the wireless acti-
vation lamp does not blink in red, push the wireless
activation button briey and hold it down again.

19 ENGLISH
Troubleshooting for wireless activation function
Before asking for repairs, conduct your own inspection rst. If you nd a problem that is not explained in the manual,
do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Centers, always using Makita replace-
ment parts for repairs.
State of abnormality Probable cause (malfunction) Remedy
The wireless activation lamp does
not light/blink.
The wireless unit is not installed into the tool.
The wireless unit is improperly installed
into the tool.
Install the wireless unit correctly.
The terminal of the wireless unit and/or
the slot is dirty.
Gently wipe o󰀨 dust and dirt on the terminal of the
wireless unit and clean the slot.
The wireless activation button on the
tool has not been pushed.
Push the wireless activation button on the tool
briey.
The stand-by switch on the vacuum
cleaner is not set to "AUTO".
Set the stand-by switch on the vacuum cleaner to
"AUTO".
No power supply
Supply the power to the tool and the vacuum cleaner.
Cannot nish tool registration / can-
celling tool registration successfully.
The wireless unit is not installed into the tool.
The wireless unit is improperly installed
into the tool.
Install the wireless unit correctly.
The terminal of the wireless unit and/or
the slot is dirty.
Gently wipe o󰀨 dust and dirt on the terminal of the
wireless unit and clean the slot.
The stand-by switch on the vacuum
cleaner is not set to "AUTO".
Set the stand-by switch on the vacuum cleaner to
"AUTO".
No power supply
Supply the power to the tool and the vacuum cleaner.
Incorrect operation Push the wireless activation button briey and perform
the tool registration/cancellation procedures again.
The tool and vacuum cleaner are away
from each other (out of the transmission
range).
Get the tool and vacuum cleaner closer to each
other. The maximum transmission distance is
approximately 10 m however it may vary according
to the circumstances.
Before nishing the tool registration/
cancellation;
- the switch trigger on the tool is pulled or;
- the power button on the vacuum
cleaner is turned on.
Push the wireless activation button briey and
perform the tool registration/cancellation procedures
again.
The tool registration procedures for the
tool or vacuum cleaner have not nished.
Perform the tool registration procedures for both the
tool and the vacuum cleaner at the same timing.
Radio disturbance by other appliances
which generate high-intensity radio
waves.
Keep the tool and vacuum cleaner away from the
appliances such as Wi-Fi devices and microwave
ovens.
The vacuum cleaner does not run
along with the switch operation of
the tool.
The wireless unit is not installed into the tool.
The wireless unit is improperly installed
into the tool.
Install the wireless unit correctly.
The terminal of the wireless unit and/or
the slot is dirty.
Gently wipe o󰀨 dust and dirt on the terminal of the
wireless unit and clean the slot.
The wireless activation button on the
tool has not been pushed.
Push the wireless activation button briey and make
sure that the wireless activation lamp is blinking in blue.
The stand-by switch on the vacuum
cleaner is not set to "AUTO".
Set the stand-by switch on the vacuum cleaner to
"AUTO".
More than 10 tools are registered to the
vacuum cleaner.
Perform the tool registration again.
If more than 10 tools are registered to the vacuum cleaner,
the tool registered earliest will be cancelled automatically.
The vacuum cleaner erased all tool
registrations.
Perform the tool registration again.
No power supply
Supply the power to the tool and the vacuum cleaner.
The tool and vacuum cleaner are away
from each other (out of the transmission
range).
Get the tool and vacuum cleaner closer each other. The
maximum transmission distance is approximately 10 m
however it may vary according to the circumstances.
Radio disturbance by other appliances
which generate high-intensity radio waves.
Keep the tool and vacuum cleaner away from the appli-
ances such as Wi-Fi devices and microwave ovens.
The vacuum cleaner runs while the
tool's switch trigger is not pulled.
Other users are using the wireless
activation of the vacuum cleaner with
their tools.
Turn o󰀨 the wireless activation button of the other
tools or cancel the tool registration of the other
tools.

20 ENGLISH
MAINTENANCE
CAUTION: Always be sure that the tool is
switched o󰀨 and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
NOTICE: Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
OPTIONAL
ACCESSORIES
CAUTION: These accessories or attachments
are recommended for use with your Makita tool
specied in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or attachment
for its stated purpose.
If you need any assistance for more details regard-
ing these accessories, ask your local Makita Service
Center.
• SDS-MAX Carbide-tipped drill bits
• SDS-MAX bull point
• SDS-MAX cold chisel
• SDS-MAX scaling chisel
• SDS-MAX clay spade
• Hammer grease
• Bit grease
• Side handle
• Side grip
• Depth gauge
• Blow-out bulb
• Dust extractor attachment
• Safety goggles
• Wireless unit
• Makita genuine battery and charger
• Plastic carrying case
NOTE: Some items in the list may be included in the
tool package as standard accessories. They may
di󰀨er from country to country.
MAKITA LIMITED WARRANTY
Please refer to the annexed warranty sheet for the
most current warranty terms applicable to this product.
If annexed warranty sheet is not available, refer to the
warranty details set forth at below website for your
respective country.
United States of America: www.makitatools.com
Canada: www.makita.ca
Other countries: www.makita.com