Makita DTWA100 User manual

INSTRUCTION MANUAL
Cordless Impact Wrench
DTWA070
DTWA100
DTWA140
DTWA190
ENGLISH: Original instructions
IMPORTANT: Read Before Using.

2ENGLISH
SPECIFICATIONS
Model: DTWA070 DTWA100 DTWA140 DTWA190
Fastening capacities Standard bolt M5 - M12 M6 - M16 M8 - M16
High tensile bolt M5 - M10 M6 - M12 M8- M14
Maximum fastening torque 65 N•m 95 N•m 140 N•m 185 N•m
Torque range Approx.
5 - 40 N•m
Approx.
6 - 65 N•m
Approx.
18 - 80 N•m
Approx.
25 - 125 N•m
Square drive 9.5 mm 12.7 mm
No load speed (RPM) 0 - 2,500 min-1 0 - 2,700 min-1 0 - 2,600 min-1
Impacts per minute 0 - 3,700 min-1 0 - 3,300 min-1 0 - 3,000 min-1
Overall length 144 mm 151 mm 158 mm
Rated voltage D.C. 14.4 V
Net weight 1.1 - 1.4 kg 1.2 - 1.4 kg 1.2 - 1.5 kg 1.3 - 1.6 kg
• Duetoourcontinuingprogramofresearchanddevelopment,thespecicationshereinaresubjecttochange
without notice.
• Specications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 and charger
Batterycartridge BL1415N / BL1415NA / BL1430 / BL1430B / BL1440 / BL1450 /
BL1460A / BL1460B
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.
Symbols
Thefollowings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 fastening bolts and nuts.
Noise
ThetypicalA-weightednoiseleveldeterminedaccord-
ing to EN62841-2-2:
Model DTWA070
Sound pressure level (LpA) : 92 dB(A)
Sound power level (LWA) : 103 dB (A)
Uncertainty(K):3dB(A)
Model DTWA100
Sound pressure level (LpA) : 93 dB(A)
Sound power level (LWA) : 104 dB (A)
Uncertainty(K):3dB(A)
Model DTWA140
Sound pressure level (LpA) : 96 dB(A)
Sound power level (LWA) : 107 dB (A)
Uncertainty(K):3dB(A)
Model DTWA190
Sound pressure level (LpA) : 95 dB(A)
Sound power level (LWA) : 106 dB (A)
Uncertainty(K):3dB(A)
NOTE: The declared noise emission value(s) has
been measured in accordance with a standard test
methodandmaybeusedforcomparingonetoolwith
another.
NOTE: The declared noise emission value(s)
mayalsobeusedinapreliminaryassessmentof
exposure.

3ENGLISH
WARNING: Wear ear protection.
WARNING: The noise emission during actual
use of the power tool can differ from the declared
value(s) depending on the ways in which the
tool is used especially what kind of workpiece is
processed.
WARNING: Be sure to identify safety mea-
sures to protect the operator that are based on an
estimation 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).
Vibration
The vibration total value (tri-axial vector sum) deter-
mined according to EN62841-2-2:
Model DTWA070
Work mode: impact tightening of fasteners of the maxi-
mumcapacityofthetool
Vibration emission (ah) : 9.0 m/s2
Uncertainty(K):1.5m/s2
Model DTWA100
Work mode: impact tightening of fasteners of the maxi-
mumcapacityofthetool
Vibration emission (ah) : 8.5 m/s2
Uncertainty(K):1.5m/s2
Model DTWA140
Work mode: impact tightening of fasteners of the maxi-
mumcapacityofthetool
Vibration emission (ah) : 10.0 m/s2
Uncertainty(K):1.5m/s2
Model DTWA190
Work mode: impact tightening of fasteners of the maxi-
mumcapacityofthetool
Vibration emission (ah) : 10.5 m/s2
Uncertainty(K):1.5m/s2
NOTE: The declared vibration total value(s) has been
measured in accordance with a standard test method
andmaybeusedforcomparingonetoolwithanother.
NOTE:Thedeclaredvibrationtotalvalue(s)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 value(s) depending on the ways in which
the tool is used especially what kind of workpiece
is processed.
WARNING: Be sure to identify safety mea-
sures to protect the operator that are based on an
estimation 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.
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.

4ENGLISH
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.
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 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
affect 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 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 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.

5ENGLISH
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 impact wrench safety
warnings
1. Hold the power tool by insulated gripping
surfaces, when performing an operation
where the fastener may contact hidden wiring.
Fastenerscontactinga"live"wiremaymake
exposed metal parts of the power tool "live" and
could give the operator an electric shock.
2. Wear ear protectors.
3. Check the impact socket carefully for wear,
cracks or damage before installation.
4. Hold the tool rmly.
5. Keep hands away from rotating parts.
6. Do not touch the impact socket, bolt, nut or the
workpiece immediately after operation.They
maybeextremelyhotandcouldburnyourskin.
7. Always be sure you have a rm footing.
Be sure no one is below when using the tool in
high locations.
8. The proper fastening torque may differ
depending upon the kind or size of the bolt.
Check the torque with a torque wrench.
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. 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).

6ENGLISH
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.
2
1
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.
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/batteryisoverheated,thetoolstops
automatically.Inthissituation,letthetool/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.
Checking the remaining battery
capacity (BL1460A)
1
2
50%-70%
70%-100%
35%-50%
20%-35%
0%-20%
►1. Indicator lamps 2. Check button
NOTE: Depending on the conditions of use and the
ambienttemperature,theindicationmaydifferslightly
fromtheactualcapacity.
When charging
Whenthechargingbegins,therst(farleft)indicatinglamp
begins to blink. Then, as charging proceeds, the other lamps
light,oneaftertheother,toindicatethebatterycapacity.
NOTE: If the indicator lamp does not turn on or blink
whencharging,thebatterymaybefaulty.Inthiscase,
askyourlocalservicecenter.
When using
When the tool is switched on, the lamps will light to
indicatetheremainingbatterycapacity.Whenthetoolis
switched off, the light goes out after approx. 5 seconds.
When pushing the check button with the tool switched
off, the indicator lamps turn on for approx. 5 seconds to
showbatterycapacity.
If the orange lamp blinks, the tool stops because of little
remainingbatterycapacity(Auto-stopmechanism).Chargethe
batterycartridgeoruseachargedbatterycartridgeatthistime.
Whenthetoolisusedwiththebatterythathasnotbeen
usedforalongtimeandisswitchedon,nolampsmay
light up. The tool stops because of little remaining bat-
terycapacityatthistime.Chargethebatteryproperly.

7ENGLISH
Switch action
1
►1. Switch trigger
CAUTION: 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.
Tostartthetool,simplypulltheswitchtrigger.Tool
speedisincreasedbyincreasingpressureontheswitch
trigger. Release the switch trigger to stop.
NOTE:Thetoolautomaticallystopsifyoukeeppull-
ing the switch trigger for about 3 minutes.
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.
Reversing switch action
1
B
A
►1. Reversing switch lever
CAUTION: Always check the direction of
rotation before operation.
CAUTION: Use the reversing switch only after
the tool comes to a complete stop. Changing the
directionofrotationbeforethetoolstopsmaydam-
age the tool.
CAUTION: When not operating the tool,
always set the reversing switch lever to the neu-
tral position.
This tool has a reversing switch to change the direction
of rotation. Depress the reversing switch lever from the
A side for clockwise rotation or from the B side for coun-
terclockwise rotation.
When the reversing switch lever is in the neutral posi-
tion, the switch trigger cannot be pulled.
Changing the parameter setting on
the computer
Youcanconguredetailedsettingofthetoolwiththe
applicationsoftware"MakitaIndustryToolSettings".
Install the application software on the computer and
connect the tool to the computer with a USB cable.
Refertotheinstructionmanualof"MakitaIndustryTool
Settings"fordetailsonconguration.
3
2
1
►1. USB port 2. USB cover 3. USB cable
NOTICE: Make sure that the USB cover closed
when fastening.

8ENGLISH
NOTE: When the reversing switch lever is depressed
in the clockwise rotation, the indicator shows the
setting of clockwise rotation.
When the reversing switch lever is depressed in the
counterclockwise rotation, the indicator shows the
setting of counterclockwise rotation.
NOTE: Use preset number as a guideline. To keep
the fastening torque, number of impacts changes
automaticallyaccordingtoremainingbatterycapacity.
NOTE: For the application software, please contact
Makita sales representative.
Changing the parameter setting on the tool (Field Setting mode)
NOTICE:Thisfunctionisavailablebydefault.IfyouhavedisabledtheFieldSettingmodeonthecomputer,
enablethisfunctionbeforehand.Refertotheinstructionmanualof"MakitaIndustryToolSettings"forhowto
congure.
NOTICE:IftheFieldSettingmodeisdisabled,makingsettingsonthetoolisnotavailable.Whenyoupressthe
settingbutton,thevaluessetonthetoolaredisplayedinorder.
Thecurrentsettingnumberisdisplayedontheindicator.
Everytimeyoupressthesettingbutton,theindicatorshowstorquelevel,rundownlevel,workabletimerange,and
“Ad”.
2
1
►1. Setting button 2. Indicator
Youcanchangethefollowingparametersettingsonyourtool:
• Auto-stop setting / Free mode
Setting item Display on the indicator Description
Torque level 01 - 40
FF
OP
The torque level at which the Tightening
Auto Stop mode works
Rundown level L1 - L7
OP
Thesensitivityofthefastenerseating
Workable time range Lo: 0.1 - 9.9
HI: 0.1 - 9.9
-.-
The shortest/longest duration of the rota-
tionwhenyoucontinuetopulltheswitch
trigger.
NOTICE:If"OP"(LooseningAutoStopmode)isdisplayedontheindicator,torquelevelsettingandrundown
level setting is not available. In this case, change the mode to Tightening Auto Stop mode, and then set the torque
levelandrundownlevelonthecomputerusing"MakitaIndustryToolSettings".

9ENGLISH
Changing the torque level
When changing the torque level from 23 to 34
1. Press the setting button several times until the
indicator shows 2-digit number which stands for
the current setting of the torque level.
2. Press and hold the setting button until the number
in the tens place starts blinking.
3. Setthenumberinthetensplacebypressingthe
settingbuttonbriey.Everytimeyoupressthe
setting button, the indicator shows the number
from"0"to"4"and"F"inacycle.
4. Press and hold the setting button until the number
in the ones place starts blinking.
5.
Setthenumberintheonesplacebypressingthesetting
buttonbriey.Everytimeyoupressthesettingbutton,the
indicatorshowsthenumberfrom"0"to"9"and"F"inacycle.
6. Press and hold the setting button for a few seconds.
NOTE: Ifyouarenotsurewhichtorquelevelissuitablefor
yourwork,set"FF"sothatthetooloperatesintheFreemode.
NOTE: Ifyouinput"00","FF"isdisplayedinsteadof"00".
Changing the rundown level
When changing the rundown level from L1 to L2
1. Press the setting button several times until the indicator
shows2charactersbeginningwith"L"followedbyanumber.
This stands for the current setting of the rundown level.
2. Press and hold the setting button until the indica-
tor starts blinking.
3. Settherundownlevel.Everytimeyoupressthe
setting button, the indicator shows from "L1" to
"L7"inacycle.Thelowestrundownlevelis"L1"
and "L7" is the highest.
4.
Press and hold the setting button for a few seconds.
Changing the shortest workable time range
When changing the shortest workable time range
from 2.5 to 3.6
1. Press the setting button several times until the
indicatorshows"Lo"andnumberalternatively.
This stands for the current setting of the shortest
workable time range.
2. Press and hold the setting button until the number
in the ones place starts blinking.
3. Setthenumberintheonesplacebypressingthe
settingbuttonbriey.Everytimeyoupressthe
setting button, the indicator shows the number
from"0"to"9"inacycle.
4. Press and hold the setting button until the number
in the decimal place starts blinking.
5. Setthenumberinthedecimalplacebypressing
thesettingbuttonbriey.Everytimeyoupressthe
setting button, the indicator shows the number
from"0"to"9"inacycle.
6.
Press and hold the setting button for a few seconds.
NOTE: Whenyousetthevaluesmallerthan"0.1"forthe
shortest workable time range, the indicator shows "-.-" and
the shortest workable time range becomes disabled. To
input "-.-", set the value to "0.9", and then press the setting
button when the number in the ones place is blinking.
Changing the longest workable time range
When changing the longest workable time range
from 2.5 to 3.6
1. Press the setting button several times until the
indicatorshows"HI"andnumberalternatively.
This stands for the current setting of the longest
workable time range.

10 ENGLISH
2. Press and hold the setting button until the number
in the ones place starts blinking.
3. Setthenumberintheonesplacebypressingthe
settingbuttonbriey.Everytimeyoupressthe
setting button, the indicator shows the number
from"0"to"9"inacycle.
4. Press and hold the setting button until the number
in the decimal place starts blinking.
5. Setthenumberinthedecimalplacebypressing
thesettingbuttonbriey.Everytimeyoupressthe
setting button, the indicator shows the number
from"0"to"9"inacycle.
6.
Press and hold the setting button for a few seconds.
NOTE:Whenyousetthevaluelargerthan"9.9"for
the longest workable time range, the indicator shows
"-.-" and the longest workable time range becomes
disabled. To input "-.-", set the value to "9.9", and then
press the setting button when the number in the ones
place is blinking.
Measuring an actual operation (Self-diagnosis)
NOTICE:Thisfunctionisavailablebydefault.IfyouhavedisabledtheFieldSettingmodeonthecomputer,
enablethisfunctionbeforehand.Refertotheinstructionmanualof"MakitaIndustryToolSettings"forhowto
congure.
Youcanmeasurethetorquelevelandoperatingtimeofanactualoperationbyoperatingthetool.Measuredtorque
level and time can be used for such as;
• Reproducing a torque control technic of a well-skilled worker and;
• A time reference for the setting of the shortest/longest workable time range.
Measuring the torque level and operating time
1. Pressthesettingbuttonseveraltimesuntil"Ad."isdisplayedontheindicator.
2. Press and hold the setting button until the indicator shows "Ch".
3. Performtheoperationthatyouwanttomeasuretheoperatingtime.
• Ifyouhaveconguredthetorquelevel,operatethetooluntilitstopsintheTighteningAutoStopmode.
• Ifyouhavenotconguredthetorquelevel(Freemode),operatethetoolasnecessary.
4. Checkthemeasuredresult.Pressthesettingbuttononcetodisplaytheactualtorquelevel,andpressitone
moretimetodisplaytheactualoperatingtime.
Everytimeyoupressthesettingbutton,theindicatorshows"Ch",thenumberofactualtorquelevel,andthe
numberofactualoperatingtimeinacycle.
5. Press and hold the setting button to exit the Self-diagnosis.
NOTE:TheTighteningAutoStopmodeworksevenintheSelf-diagnosis.Ifyouwanttomeasurethetorquelevel
without limitation, set the torque level "FF" (Free mode) and perform the procedures above.
NOTE:If"--"isdisplayedontheindicator,theimpactdidnotworkorthetorquelevelishigherthan40.If"-.-"is
displayedintheindicator,theoperatingtimeexceeded9.9seconds.
• In case the impact did not work: Remeasure the torque level with longer workable time.
• In case the torque level is higher than 40: The tool cannot measure the torque level. Use the tool with higher
torque range if available.
• In case the operating time exceeded 9.9 seconds, the workable time range is not available.
Measuring example:
Ifyoucongurethefollowingsetting,youcanreadthetoolstatus.
Case 1
Setting item Tool setting Measured result Diagnosis
Torque level 23 20 Thetoolhasstoppedbythe
setting of the longest workable
time range (3.5 sec.) before
it reaches the setting of the
Tightening Auto Stop mode
(torque level 23).
Workable time range shortest: 2.5 sec.
longest: 3.5 sec.
3.5
Case 2
Setting item Tool setting Measured result Diagnosis
Torque level 23 23 Thetoolhasstoppedbythe
Tightening Auto Stop mode
(torque level 23) before it
reaches the setting of longest
workable time range (3.5 sec.).
Workable time range shortest: 2.5 sec.
longest: 3.5 sec.
3

11 ENGLISH
LED indicator / beeper
1
►1. LED indicator
LED indicator / beeper on the tool shows the following functions.
Alarm No. Function Status of the tool Status of the LED indicator/beeper Action to be taken
LED indicator Beeper
E0 Batteryinstallation
error
Ifthebatterycar-
tridge is installed
with the switch
trigger pulled, the
tool stops to avoid
unintentional start.
Blinks in red and
greenalternatively.
A series of long
beeps
Installthebattery
cartridge with
the switch trigger
released.
E1 Auto-stop Thebatterypower
became low and it is
time to replace the
batterycartridge.
Blinks in red and
greenalternatively.
A series of long
beeps
Replacethebattery
withfullycharged
one.
E2 Anti-reset of
controller
Thebatteryvoltage
droppedabnormally
for some reason, and
the tool stopped.
Blinks in red and
greenalternatively.
A series of long
beeps
Replacethebattery
withfullycharged
one.
E3 Auto-stop with low
remainingbattery
capacity
Thebatterypoweris
almost used up and
the tool stopped.
Lights up in red. A long beep Replacethebattery
withfullycharged
one.
E4 Overload protection The tool was over-
loaded and stopped.
Blinks in red and
greenalternatively.
A series of long
beeps
Remove the cause
of overload, and
then restart the tool.
Askyourlocal
Makita Service
Center for repair.
E5 Overheat protection Tool's controller
heated up abnor-
mallyandthetool
stopped.
Blinksinredquickly. A series of long
beeps
Removethebattery
cartridge immedi-
atelyandcoolthe
tool down.
E6 Motor lock The motor has been
locked. At this time,
the tool does not
work.
Blinks in red and
greenalternatively.
A series of long
beeps
Release the switch
trigger and pull it
again.
E7 Motor failure The tool detected a
motor failure. At this
time, tool does not
work.
Blinks in red and
greenalternatively.
A series of long
beeps
Askyourlocal
Makita Service
Center for repair.
E8 Switch failure The tool detected a
switch failure.
Blinks in red and
greenalternatively.
A series of long
beeps
Askyourlocal
Makita Service
Center for repair.
E9 Alarm for a long
period of use
The tool has been
turned on for a long
time (Approx. 3
minutes).
Blinks in red and
greenalternatively.
A long beep Release the switch
trigger and pull it
again.
-Auto-stop with fas-
tening completion
The preset fasten-
ing torque has been
achieved and the
tool has stopped.
Lights up in green
forapproximately
one second.
– –

12 ENGLISH
Alarm No. Function Status of the tool Status of the LED indicator/beeper Action to be taken
LED indicator Beeper
-Alarmforinsufcient
fastening
The preset fas-
tening torque has
not been achieved
because the switch
trigger was released
before completing
the fastening.
Lights up in red for
approximatelyone
second.
A long beep Retighten the
fastener.
-Alarm for limit of the
fasteningcapacity
–Blinksinredquickly. A series of long
beeps
Replacethebattery
withfullycharged
one.
-Maintenance alarm The number of drive
has been reached to
yourpresetnumber
for the maintenance.
Blinksinyellow. –Reset the alarm
with the application
software.
-Alarm for no com-
munication with
the PC
No data commu-
nication while the
tool is connected to
the PC.
Blinksinyellow. –Restart the appli-
cation software and
re-connect the USB
cable.
-Indication that the
tool can communi-
cate with the PC
The tool is con-
nected to the PC
and able to commu-
nicate with.
Blinks in green. – –
-Check for the lamp
and beeper (when
thebatterycartridge
is installed)
The tool performs
the operation test
for the LED indicator
(green/red), light,
and beeper.
The LED indicator
lights up in green
and then red. After
that, the light turns
on for a while.
Aseriesofvery
short beeps
–
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.
Selecting correct impact socket
Alwaysusethecorrectsizeimpactsocketforboltsand
nuts. An incorrect size impact socket will result in inac-
curate and inconsistent fastening torque and/or damage
to the bolt or nut.
Installing or removing impact socket
Optional accessory
CAUTION: Make sure that the impact socket
and the mounting portion are not damaged before
installing the impact socket.
CAUTION: After inserting the impact socket,
make sure that it is rmly secured. If it comes out,
do not use it.
NOTE:Thewayofimpactsocketinstallationvaries
dependingonthetypeofthesquaredriveonthetool.
Tool with the ring spring
For impact socket without O-ring and pin
1
23
►1. Impact socket 2. Square drive 3. Ring spring
Push the impact socket onto the square drive until it
locks into place.
Toremovetheimpactsocket,simplypullitoff.

13 ENGLISH
For impact socket with O-ring and pin
1
2
3
►1. Impact socket 2. O-ring 3. Pin
Move the O-ring out of the groove in the impact socket
and remove the pin from the impact socket. Fit the
impact socket onto the square drive so that the hole in
the impact socket is aligned with the hole in the square
drive.
Insert the pin through the hole in the impact socket and
square drive. Then return the O-ring to the original posi-
tion in the impact socket groove to retain the pin.
To remove the impact socket, follow the installation
procedures in reverse.
Tool with the detent pin
1
2
4
3
►1. Impact socket 2. Hole 3. Square drive 4. Detent
pin
Align the hole in the side of the impact socket with the
detent pin on the square drive and push the impact
socket onto the square drive until it locks into place. Tap
itlightlyifrequired.
Toremovetheimpactsocket,simplypullitoff.Ifitis
hard to remove, depress the detent pin while pulling the
impact socket.
Installing hook
Optional accessory
The hook is useful to hang the tool. Install the hook to
theholesonthetoolbody.
2
2
1
►1. Hook 2. Hole
OPERATION
CAUTION: Always insert the battery cartridge
all the way until it locks in place.Ifyoucanseethe
red indicator on the upper side of the button, it is not
lockedcompletely.Insertit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:Holdthetoolrmlyandplacethe
impact socket over the bolt or nut. Turn the tool on
and fasten for the proper fastening time.
CAUTION:Ifthetoolisoperatedcontinuously
untilthebatterycartridgehasdischarged,allowthe
tool to rest for 15 minutes before proceeding with a
freshbatterycartridge.
CAUTION: Pressing excessively on the tool will
not speed up the drilling. In fact, this excessive pressure
willonlyservetodamagethetipofyourdrillbit,decrease
the tool performance and shorten the service life of the tool.
CAUTION: Always secure workpieces in a
vise or similar hold-down device.
Theproperfasteningtorquemaydifferdependingupon
the kind or size of the bolt, the material of the workpiece
to be fastened, etc.

14 ENGLISH
NOTICE:Whenfasteningsmallbolts,carefully
adjustpressureontheswitchtriggersothatthebolt
is not damaged.
NOTICE: Hold the tool pointed straight at the bolt
or nut.
NOTICE:Excessivefasteningtorquemaydamage
thebolt/nutorimpactsocket.Beforestartingyour
job,alwaysperformatestoperationtodeterminethe
properfasteningtimeforyourboltornut.
Thefasteningtorqueisaffectedbyawidevarietyof
factorsincludingthefollowing.Afterfastening,always
check the torque with a torque wrench.
1. Whenthebatterycartridgeisdischargedalmost
completely,voltagewilldropandthefastening
torque will be reduced.
2. Impact socket
• Failure to use the correct size impact socket
will cause a reduction in the fastening torque.
• A worn impact socket (wear on the hex end
or square end) will cause a reduction in the
fastening torque.
3. Bolt
• Eventhoughthetorquecoefcientandthe
class of bolt are the same, the proper fasten-
ing torque will differ according to the diame-
ter of bolt.
• Even though the diameters of bolts are the
same, the proper fastening torque will differ
accordingtothetorquecoefcient,theclass
of bolt and the bolt length.
4. Theuseoftheuniversaljointortheextension
bar somewhat reduces the fastening force of the
impactwrench.Compensatebyfasteningfora
longer period of time.
5. The manner of holding the tool or the material
of driving position to be fastened will affect the
torque.
6. Operating the tool at low speed will cause a reduc-
tion in the fastening torque.

15 ENGLISH
Fastening torque and torque level
NOTE:ThisreferencevalueismeasuredbythemeasurementconditionsspeciedbyMakita.
NOTE:Theactualvaluemaydifferaccordingtocircumstancesofthefasteners,materials,andfasteningmethod.
Perform a test drive before actual work.
(1224)
(816)
(408)
(1428)
140
(1020)
100
(612)
60
(204)
(M6)
(M6)
DTWA070
DTWA100
(M10)
DTWA190
(M8)DTWA100
(M8)
DTWA070
(M10)DTWA070
(M10)DTWA100
(M10)DTWA140
(M12)
DTWA190
(M12)
DTWA140
(M12)
DTWA100
(M14)
DTWA190
(M8)
DTWA140
510152025303
54
0
1
2
20
120
80
40
N m
(kgf cm)
1
0
1. Torque level 2. Fastening torque

MAINTENANCE
CAUTION: Always be sure that the tool is
switched off 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.
• Hook
• Protector (Blue, Red, Yellow, Green, Clear)
• BatteryProtectorforBL1460A
• BatteryProtectorforBL1415NA
• Makitagenuinebatteryandcharger
• USB cable
NOTE:Someitemsinthelistmaybeincludedinthe
toolpackageasstandardaccessories.Theymay
differfromcountrytocountry.
www.makita.com
Makita Europe N.V.
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japa
n
Jan-Baptist Vinkstraat 2,
3070 Kortenberg, Belgium
885713-228
EN
20190625