Makita DTW1001 User manual

INSTRUCTION MANUAL
Cordless Impact Wrench
DTW1001
DTW1002
DTW800
ENGLISH: Original instructions
Read before use.

2ENGLISH
SPECIFICATIONS
Model: DTW1001 DTW1002 DTW800
Fastening
capacities
Standard bolt M12 - M30 M12 - M24
High tensile
bolt
M10 - M24 M10 - M22
Square drive 19 mm 12.7 mm –
Drive shank –11.1 mm Hex.
No load speed Impact mode
(Hard)
0 - 1,800 min-1
Impact mode
(Medium)
0 - 1,000 min-1
Impact mode
(Soft)
0 - 900 min-1
Impacts per
minute
Impact mode
(Hard)
0 - 2,200 min-1
Impact mode
(Medium)
0 - 2,000 min-1
Impact mode
(Soft)
0 - 1,800 min-1
Overall length 229 mm
Rated voltage D.C. 18 V
Battery cartridge BL1815N,
BL1820,
BL1820B
BL1830,
BL1840,
BL1850,
BL1840B,
BL1850B
BL1815N,
BL1820,
BL1820B
BL1830,
BL1840,
BL1850,
BL1840B,
BL1850B
BL1815N,
BL1820,
BL1820B
BL1830,
BL1840,
BL1850,
BL1840B,
BL1850B
Net weight 3.4 kg 3.7 kg 3.3 kg 3.6 kg 3.4 kg 3.7 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.
• Weight,withbatterycartridge,accordingtoEPTA-Procedure01/2003
Symbols
Thefollowingshowthesymbolsusedfortheequip-
ment. Be sure that you understand their meaning before
use.
Read instruction manual.
Cd
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.
ModelDTW800:Thetoolisalsointendedfordrilling
into wood.
Noise
ThetypicalA-weightednoiseleveldeterminedaccord-
ingtoEN60745:
Model DTW1001
Sound pressure level (LpA):98dB(A)
Sound power level (LWA):109dB(A)
Uncertainty(K):3dB(A)
Model DTW1002
Sound pressure level (LpA):97dB(A)
Sound power level (LWA):108dB(A)
Uncertainty(K):3dB(A)
Model DTW800
Sound pressure level (LpA):95dB(A)
Sound power level (LWA):106dB(A)
Uncertainty(K):3dB(A)
WARNING: Wear ear protection.
Vibration
Thevibrationtotalvalue(tri-axialvectorsum)deter-
minedaccordingtoEN60745:
Model DTW1001
Workmode:impacttighteningoffastenersofthemaxi-
mum capacity of the tool
Vibration emission (ah):15.5m/s2
Uncertainty(K):2.0m/s2

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Model DTW1002
Workmode:impacttighteningoffastenersofthemaxi-
mum capacity of the tool
Vibration emission (ah):18.0m/s2
Uncertainty(K):1.5m/s2
Model DTW800
Workmode:impacttighteningoffastenersofthemaxi-
mum capacity of the tool
Vibration emission (ah):24.0m/s2
Uncertainty(K):2.0m/s2
Workmode:drillingintowood
Vibration emission (ah):7.0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
MakitadeclaresthatthefollowingMachine(s):
DesignationofMachine:CordlessImpactWrench
ModelNo./Type:DTW1001,DTW1002,DTW800
ConformstothefollowingEuropeanDirectives:2006/42/EC
Theyaremanufacturedinaccordancewiththefollowing
standardorstandardizeddocuments:EN60745
Thetechnicalleinaccordancewith2006/42/ECis
availablefrom:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
13.5.2015
Yasushi Fukaya
Director
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
General power tool safety warnings
WARNING: Read all safety warnings and
all instructions. Failure to follow the warnings and
instructionsmayresultinelectricshock,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.
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 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, clothing, and
gloves away from moving parts. Loose clothes,

4ENGLISH
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.
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 the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such pre-
ventive 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. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tool’s operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
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.
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.
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. Follow instruction for lubricating and chang-
ing accessories.
3. Keep handles dry, clean and free from oil and
grease.
Cordless impact wrench safety
warnings
1. Hold power tool by insulated gripping sur-
faces, 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. Always be sure you have a rm footing.
Be sure no one is below when using the tool in
high locations.
6. The proper fastening torque may differ
depending upon the kind or size of the bolt.
Check the torque with a torque wrench.
7. Use auxiliary handle(s), if supplied with the
tool.Lossofcontrolcancausepersonalinjury.
8. 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.
9. Keep hands away from rotating parts.
10. Do not touch the drill bit or the workpiece
immediately after operation; they may be
extremely hot and could burn your skin.
11. Some material contains chemicals which may
be toxic. Take caution to prevent dust inhala-
tion and skin contact. Follow material supplier
safety data.
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

5ENGLISH
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. Follow your local regulations relating to dis-
posal of battery.
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).
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.
Battery protection system
Lithium-ion battery with star marking
1
►1. Star marking

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Lithium-ion batteries with a star marking are equipped
withaprotectionsystem.Thissystemautomatically
cuts off power to the tool to extend battery life.
Thetoolwillautomaticallystopduringoperationifthe
tooland/orbatteryareplacedunderoneofthefollowing
conditions:
Overloaded:
Thetoolisoperatedinamannerthatcausesittodraw
an abnormally high current.
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.
If the tool does not start, the battery is overheated. In
this situation, let the battery cool before turning the tool
on again.
Low battery voltage:
Theremainingbatterycapacityistoolowandthetool
will not operate. In this situation, remove and recharge
the battery.
Indicating the remaining battery
capacity
Only for battery cartridges with "B" at the end of the
model number
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 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.
Switch action
1
►1. Switch trigger
CAUTION: Before inserting 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 6 minutes.
Lighting up the front lamp
CAUTION: Do not look in the light or see the
source of light directly.
1
►1. Lamp

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1
►1. Button
Toturnonthelampstatus,pressthebutton for
onesecond.Toturnoffthelampstatus,pressthebut-
ton for one second again.
WiththelampstatusON,pulltheswitchtriggertoturn
onthelamp.Toturnoff,releaseit.Thelampgoesout
approximately 10 seconds after releasing the switch
trigger.
WiththelampstatusOFF,thelampdoesnotturnon
even if pulling the trigger.
NOTE:Toconrmthelampstatus,pullthetrigger.
Whenthelamplightsupbypullingtheswitchtrigger,
thelampstatusisON.Whenthelampdoesnotcome
on, the lamp status is OFF.
NOTE:Whenthetoolisoverheated,thelightashes
foroneminute,andthentheLEDdisplaygoesoff.In
this case, cool down the tool before operating again.
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.
NOTE:Whilepullingtheswitchtrigger,thelamp
status cannot be changed.
NOTE: For approximately 10 seconds after releasing
the switch trigger, the lamp status can be changed.
Reversing switch action
AB
1
►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 impact force
1
2
3
4
5
►1. Changed in three steps 2. Hard 3. Medium 4. Soft
5. Button

8ENGLISH
Youcanchangetheimpactinthreesteps:hard,mediumandsoftmode.
Thisallowsatighteningsuitabletothework.
Everytimethebutton is pressed, the number of blows changes in three steps.
For approximately one minute after releasing the switch trigger, the impact force can be changed.
Specications of each impact force grade
Impact force grade displayed on
panel
Maximum blows Application
DTW1001 DTW1002 DTW800
Hard 2,200 min-1(/min) Tighteningwhenforceandspeedaredesired.
Medium 2,000 min-1(/min) Tighteningwhenyouneedgoodcontrolledpower.
Soft 1,800 min-1(/min) Tighteningwhenyouneedneadjustmentwith
small diameter bolt.
Impact force/bolt size corresponding chart (reference)
Impact force grade displayed on
panel
DTW1001 DTW1002 DTW800
Standard bolt High tensile
bolt
Standard bolt High tensile
bolt
Standard bolt High tensile
bolt
Hard M20 - M30
(3/4″-1-1/4″)
M16 - M24
(5/8″-1″)
M20 - M30
(3/4″-1-1/4″)
M16 - M24
(5/8″-1″)
M20 - M24
(3/4″-1″)
M16 - M22
(5/8″-7/8″)
Medium M16 - M24
(5/8″-1″)
M12 - M20
(1/2″-3/4″)
M16 - M24
(5/8″-1″)
M12 - M20
(1/2″-3/4″)
M14 - M20
(9/16″-3/4″)
M10 - M16
(3/8″-5/8″)
Soft M12 - M20
(1/2″-3/4″)
M10 - M16
(3/8″-5/8″)
M12 - M20
(1/2″-3/4″)
M10 - M16
(3/8″-5/8″)
M12 - M16
(1/2″-5/8″)
M10 - M12
(3/8″-1/2″)
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
Only for Model DTW1001,DTW1002 (optional
accessory)
CAUTION: Make sure that the impact socket
and the mounting portion are not damaged before
installing the impact socket.

9ENGLISH
For impact socket without O-ring
and pin
1
2
►1. Impact socket 2. Square drive
Alignthesquareoftheimpactsocketwith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.
For impact socket with O-ring
and pin
Only for Model DTW1001
2
3
1
►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.
Installing or removing drill bit/
socket adapter
Only for Model DTW800 (optional accessory)
A
A=11.2mm
Useonlythedrillbit/socketadaptershowninthegure.
Donotuseanyotherdrillbit/socketadapter.
1
2
►1. Drill bit 2. Sleeve
Toinstallthedrillbit,pullthesleeveinthedirectionof
the arrow and insert the drill bit into the sleeve as far as
it will go.
Thenreleasethesleevetosecurethedrillbit.
Toremovethedrillbit,pullthesleeveinthedirectionof
the arrow and pull the drill bit out.
NOTE: If the drill bit is not inserted deep enough into
the sleeve, the sleeve will not return to its original
position and the drill bit will not be secured. In this
case, try re-inserting the drill bit according to the
instructions above.
NOTE:Afterinsertingthedrillbit,makesurethatitis
rmlysecured.Ifitcomesout,donotuseit.

10 ENGLISH
Ring
Only for Model DTW800
2
1
3
►1. Bracket 2. Ring 3. Screws
Theringisconvenientforhangingthetoolwithhoist.
First,placetheropethroughthering.Thenhangthe
tool up to the air with hoist.
CAUTION: Before using the ring, always
make sure that the bracket and ring are secured
and not damaged.
Installing hook
1
2
3
►1. Groove 2. Hook 3. Screw
Thehookisconvenientfortemporarilyhangingthetool.
Thiscanbeinstalledoneithersideofthetool.Toinstall
the hook, insert it into a groove in the tool housing
oneithersideandthensecureitwithtwoscrews.To
remove, loosen the screws and then take it out.
OPERATION
CAUTION: Always insert the battery cartridge
all the way until it locks in place. If you can see
the red part on the upper side of the button, it is not
locked completely. Insert it fully until the red part can-
not be seen. If not, it may accidentally fall out of the
tool,causinginjurytoyouorsomeonearoundyou.
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.
Theproperfasteningtorquemaydifferdependingupon
the kind or size of the bolt, the material of the workpiece
tobefastened,etc.Therelationbetweenfastening
torqueandfasteningtimeisshowninthegures.

11 ENGLISH
Model DTW1001
Proper fastening torque for standard bolt
1
2
N•m
(kgf•cm)
800
600
400
200
(2040)
(4080)
(6120)
(8160)
1023
0
M24(1″)
M24(1″)
M30(1-1/4″)
M30(1-1/4″)
1. Fastening time (second) 2. Fastening torque
Proper fastening torque for high tensile bolt
1023456
0
800
600
400
200
(2040)
(4080)
(6120)
(8160)
N•m
(kgf•cm)
2
1
M24(1″)
M24(1″)
M22(7/8″)
M22(7/8″)
M20(3/4″)
M20(3/4″)
1. Fastening time (second) 2. Fastening torque
Model DTW1002
Proper fastening torque for standard bolt
1
2
N•m
(kgf•cm)
800
600
400
200
(2040)
(4080)
(6120)
(8160)
1023
0
M24(1″)
M24(1″)
M30(1-1/4″)
M30(1-1/4″)
1. Fastening time (second) 2. Fastening torque
Proper fastening torque for high tensile bolt
1023456
0
800
600
400
200
(2040)
(4080)
(6120)
(8160)
N•m
(kgf•cm)
2
1
M24(1″)
M24(1″)
M22(7/8″)
M22(7/8″)
M20(3/4″)
M20(3/4″)
1. Fastening time (second) 2. Fastening torque

12 ENGLISH
Model DTW800
Proper fastening torque for standard bolt
N•m
(kgf•cm)
1
1
02
3
0
400
200
(2040)
(4080)
M20(3/4″)
M20(3/4″)
M24(1″)
M24(1″)
2
1. Fastening time (second) 2. Fastening torque
Proper fastening torque for high tensile bolt
1023456
0
800
600
400
200
(2040)
(4080)
(6120)
(8160)
N•m
(kgf•cm)
1
2
M22(7/8″)
M20(3/4″)
M20(3/4″)
M16(5/8″)
M16(5/8″)
M22(7/8″)
1. Fastening time (second) 2. Fastening torque
NOTE: Hold the tool pointed straight at the bolt or nut.
NOTE: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.
NOTE: 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.
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.
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.
• Impactsocket
• Drillbits(onlyforModelDTW800)
• Extensionbar
• Universaljoint
• Makitagenuinebatteryandcharger
NOTE: Some items in the list may be included in the
toolpackageasstandardaccessories.Theymay
differ from country to country.
13 ENGLISH

14

15

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Makita
Jan-Baptist Vinkstraat 2, 3070, Belgium
Makita Corporation Anjo, Aichi, Japan
885444-229
EN
20150811