Makita DHR400 User manual

INSTRUCTION MANUAL
Cordless Rotary Hammer
DHR400
ENGLISH: Original instructions
Read before use.

2ENGLISH
SPECIFICATIONS
Model: DHR400
Capacities Carbide-tipped bit 40 mm
Core bit 105 mm
No load speed (RPM) 250 - 500 min-1
Blows per minute 1,450 - 2,900 min-1
Overall length 473 mm
Rated voltage D.C. 36 V
Net weight 7.3 - 8.1 kg
• 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differfromcountrytocountry.
• Theweightmaydifferdependingontheattachment(s),includingthebatterycartridge.Thelightestandheavi-
estcombination,accordingtoEPTA-Procedure01/2014,areshowninthetable.
Applicable battery cartridge
BL1815N/BL1820/BL1820B/BL1830/BL1830B/BL1840/BL1840B/BL1850/BL1850B/BL1860B
• Someofthebatterycartridgeslistedabovemaynotbeavailabledependingonyourregionofresidence.
WARNING: Only use the battery cartridges listed above.Useofanyotherbatterycartridgesmaycause
injuryand/orre.
Symbols
Thefollowingshowthesymbolsusedfortheequip-
ment.Besurethatyouunderstandtheirmeaningbefore
use.
Read instruction manual.
Ni-MH
Li-ion
OnlyforEUcountries
Donotdisposeofelectricequipmentor
batterypacktogetherwithhouseholdwaste
material!
In observance of the European Directives,
on Waste Electric and Electronic
EquipmentandBatteriesandAccumulators
andWasteBatteriesandAccumulators
and their implementation in accordance
withnationallaws,electricequipmentand
batteriesandbatterypack(s)thathave
reached the end of their life must be col-
lectedseparatelyandreturnedtoanenvi-
ronmentallycompatiblerecyclingfacility.
Intended use
Thetoolisintendedforhammerdrillinganddrillingin
brick, concrete and stone as well as for chiselling work.
Noise
ThetypicalA-weightednoiseleveldeterminedaccord-
ing to EN60745:
Soundpressurelevel(LpA):91dB(A)
Soundpowerlevel(LWA):102dB(A)
Uncertainty(K):3dB(A)
WARNING: Wear ear protection.
Vibration
Thevibrationtotalvalue(tri-axialvectorsum)deter-
mined according to EN60745:
Work mode: hammer drilling into concrete
Vibration emission (ah, HD):5.0m/s2
Uncertainty(K):1.5m/s2
Work mode: chiselling function with side grip
Vibration emission (ah,Cheq):4.5m/s2
Uncertainty(K):1.5m/s2
Work mode: chiselling function with side handle
Vibration emission (ah,Cheq):4.5m/s2
Uncertainty(K):1.5m/s2
NOTE:Thedeclaredvibrationemissionvaluehas
been measured in accordance with the standard test
methodandmaybeusedforcomparingonetoolwith
another.
NOTE:Thedeclaredvibrationemissionvalue
mayalsobeusedinapreliminaryassessmentof
exposure.
WARNING:Thevibrationemissionduringactual
use of the power tool can differ from the declared
emissionvaluedependingonthewaysinwhichthe
tool is used.
WARNING:Besuretoidentifysafetymeasures
to protect the operator that are based on an estima-
tionofexposureintheactualconditionsofuse(taking
accountofallpartsoftheoperatingcyclesuchas
the times when the tool is switched off and when it is
running idle in addition to the trigger time).
EC Declaration of Conformity
For European countries only
TheECdeclarationofconformityisincludedasAnnexA
to this instruction manual.

3ENGLISH
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.
6. 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.
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a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 off-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 and clothing away
from moving parts.Looseclothes,jewellery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, EN 166 in Europe, or AS/NZS 1336
in Australia/New Zealand. In Australia/New
Zealand, it is legally required to wear a face
shield to protect your face, too.
It is an employer's responsibility to enforce
the use of appropriate safety protective equip-
ments by the tool operators and by other per-
sons in the immediate working area.

4ENGLISH
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 off.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 chil-
dren 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,
breakage of parts and any other condition that
may affect the power tool’s operation. If dam-
aged, 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 different 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 con-
tact accidentally 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.
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.
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 dif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.

5ENGLISH
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
off 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.
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.
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offopencontactsandpackupthe
batteryinsuchamannerthatitcannotmove
around in the packaging.
11. Follow your local regulations relating to dis-
posal 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.
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 near by.
7. Do not operate the wireless unit in places
where automated devices are near by. If oper-
ated,automateddevicesmaydevelopmalfunction
or error.

6ENGLISH
8. The wireless unit can produce electromagnetic
elds (EMF) but they are not harmful to the
user.
9. The wireless unit is an accurate instrument. Be
careful not to drop or strike the wireless unit.
10. Avoid touching the terminal of the wireless
unit with bare hands or metallic materials.
11. Always remove the battery on the tool when
installing the wireless unit.
12. 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.
13. Always insert the wireless unit in the correct
direction.
14. 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.
15. Always close the lid of the slot when
operating.
16. 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.
17. Do not remove the sticker on the wireless unit.
18. Do not put any sticker on the wireless unit.
19. Do not leave the wireless unit in a place where
static electricity or electrical noise could be
generated.
20. Do not leave the wireless unit in a place sub-
ject to high heat, such as a car sitting in the
sun.
21. Do not leave the wireless unit in a dusty or
powdery place or in a place corrosive gas
could be generated.
22. Sudden change of the temperature may bedew
the wireless unit. Do not use the wireless unit
until the dew is completely dried.
23. When cleaning the wireless unit, gently wipe
with a dry soft cloth. Do not use benzine, thin-
ner, conductive grease or the like.
24. When storing the wireless unit, keep it in the
supplied case or a static-free container.
25. Do not insert any devices other than Makita
wireless unit into the slot on the tool.
26. Do not use the tool with the lid of the slot dam-
aged.Water,dust,anddirtcomeintotheslotmay
cause malfunction.
27. Do not pull and/or twist the lid of the slot more
than necessary. Restore the lid if it comes off
from the tool.
28. Replace the lid of the slot if it is lost or
damaged.
SAVE THESE INSTRUCTIONS.
FUNCTIONAL
DESCRIPTION
CAUTION: Always be sure that the tool is
switched off and the battery cartridge is removed
before adjusting or checking function on the tool.
Installing or removing battery
cartridge
CAUTION: Always switch off 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off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.

7ENGLISH
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 Off 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differslightly
fromtheactualcapacity.
Tool / battery protection system
Thetoolisequippedwithatool/batteryprotectionsys-
tem.Thissystemautomaticallycutsoff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 off and stop the application that caused the tool
tobecomeoverloaded.Thenturnthetoolontorestart.
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trigger-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.

8ENGLISH
Speed change
Therevolutionsandblowsperminutecanbeadjusted
byturningtheadjustingdial.Thedialismarked1(low-
est 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: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.
NOTE:Useadryclothtowipethedirtoff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

9ENGLISH
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 off 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.
Constant speed control
Electronic speed control for obtaining constant speed.
Possibletogetnenish,becausetherotatingspeedis
kept constant even under load condition.
ASSEMBLY
CAUTION: Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
Side handle
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 different 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.

10 ENGLISH
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
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.

11 ENGLISH
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.
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
234
►1.Dustcoverextension2. Dust cover 3. Joint
4. Bellows

12 ENGLISH
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
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.

13 ENGLISH
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.
1 2 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.
5. Adjustthedistancebetweenthedustcoverand
thetipofthechiselorbullpoint.Therecommended
distance is 30 mm to 100 mm.
(1)
►(1) 30 mm to 100 mm

14 ENGLISH
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
affect 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
efciency.
Blow-out bulb
Optional accessory
Afterdrillingthehole,usetheblow-outbulbtocleanthe
dust out of the hole.

15 ENGLISH
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
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.

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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.

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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
an other user is using the wireless activation function.

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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off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.
Off - - Thewirelessactivationofthevacuumcleanerisstopped.

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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.

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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off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off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is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has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.