Makita DTD138 User manual

INSTRUCTION MANUAL
Cordless Impact Driver
DTD138
DTD149
ENGLISH: Original instructions
Read before use.

2ENGLISH
SPECIFICATIONS
Model: DTD138 DTD149
Fastening capacities Machine screw 4 mm - 8 mm
Standard bolt 5 mm - 14 mm
High tensile bolt 5 mm - 12 mm
No load speed 0 - 2,600 min-1 0 - 2,500 min-1
Impacts per minute 0 - 3,200 min-1
Overall length 135 mm
Rated voltage D.C. 14.4 V D.C. 18 V
Battery cartridge BL1415, BL1415N BL1430, BL1430B,
BL1440, BL1450,
BL1460B
BL1815, BL1815N,
BL1820, BL1820B
BL1830, BL1830B,
BL1840, BL1840B,
BL1850, BL1850B,
BL1860B
Net weight 1.2 kg 1.4 kg 1.3 kg 1.5 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screwdrivinginwood,metal
and plastic.
SAFETY WARNINGS
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 exten-
sion cord suitable for outdoor use.Useofacordsuit-
able 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.

3ENGLISH
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,jewel-
lery or long hair can be caught in moving parts.
7. If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used.Useof
dust collection can reduce dust-related hazards.
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 driver 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. Always be sure you have a rm footing.
Be sure no one is below when using the tool in
high locations.
3. Hold the tool rmly.
4. Wear ear protectors.
5. Do not touch the bit or the workpiece immedi-
ately after operation. They may be extremely
hot and could burn your skin.
6. Keep hands away from rotating parts.
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.

4ENGLISH
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 attention 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 requirements.
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.
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.

5ENGLISH
Battery protection system
Lithium-ion battery with star marking
1
►1. Star marking
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 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 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 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.

6ENGLISH
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10-15secondsafterreleasingthe
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
AB
►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.
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.
Installing or removing driver bit/
socket bit
Useonlydriverbit/socketbitthathasinsertingportion
showninthegure.Donotuseanyotherdriverbit/
socket bit.
For tool with shallow driver bit hole
A=12mm
B=9mm
Useonlythesetypeofdriver
bit. Follow the procedure
1. (Note) Bit-piece is not
necessary.
For tool with deep driver bit hole
A=17mm
B=14mm
Toinstallthesetypesofdriver
bits, follow the procedure 1.
A=12mm
B=9mm
Toinstallthesetypesofdriver
bits, follow the procedure 2.
(Note) Bit-piece is necessary
for installing the bit.
Procedure 1
For tool without one-touch type sleeve
12
►1. Driver bit 2. Sleeve
Toinstallthedriverbit,pullthesleeveinthedirectionof
the arrow and insert the driver bit into the sleeve as far
as it will go.
Thenreleasethesleevetosecurethedriverbit.

7ENGLISH
For tool with one-touch type sleeve
Toinstallthedriverbit,insertthedriverbitintothe
sleeve as far as it will go.
Procedure 2
In addition to Procedure 1, insert the bit-piece into the
sleeve with its pointed end facing in.
13
2
►1. Driver bit 2. Bit-piece 3. Sleeve
Toremovethedriverbit,pullthesleeveinthedirection
of the arrow and pull the driver bit out.
NOTE: If the driver bit is not inserted deep enough
into the sleeve, the sleeve will not return to its original
position and the driver bit will not be secured. In this
case, try re-inserting the bit according to the instruc-
tions above.
NOTE:Whenitisdifculttoinsertthedriverbit,pull
the sleeve and insert it into the sleeve as far as it will
go.
NOTE:Afterinsertingthedriverbit,makesurethatit
isrmlysecured.Ifitcomesout,donotuseit.
Installing hook
3
2
1
►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ascrew.Toremove,
loosen the screw and then take it out.
OPERATION
Theproperfasteningtorquemaydifferdependingupon
thekindorsizeofthescrew/bolt,thematerialofthe
workpiecetobefastened,etc.Therelationbetweenfas-
teningtorqueandfasteningtimeisshowninthegures.

8ENGLISH
Model DTD138
Standard bolt
2
1
M14
M12
M10
M8
120
100
80
60
40
20
0123
3
(1224)
(1020)
(816)
(612)
(408)
(204)
N•m
(kgf•cm)
M14
M12
M10
M8
1. Fastening time (second) 2.Fasteningtorque
3.Properfasteningtorquecorrespondingtoeachbolt
diameter
High tensile bolt
2
1
M12
M10
M8
120
100
80
60
40
20
0123
3
(1224)
(1020)
(816)
(612)
(408)
(204)
N•m
(kgf•cm)
M12
M10
M8
1. Fastening time (second) 2.Fasteningtorque
3.Properfasteningtorquecorrespondingtoeachbolt
diameter
Model DTD149
Standard bolt
2
1
M14
M12
M10
M8
140
120
100
80
60
40
20
01
23
3
M14
M12
M10
M8
(1428)
(1224)
(1020)
(816)
(612)
(408)
(204)
N•m
(kgf•cm)
1. Fastening time (second) 2.Fasteningtorque
3.Properfasteningtorquecorrespondingtoeachbolt
diameter
High tensile bolt
2
1
M12
M10
M8
200
180
160
140
120
100
80
60
40
20
01
23
3
(2040)
(1836)
(1632)
(1428)
(1224)
(1020)
(816)
(612)
(408)
(204)
N•m
(kgf•cm)
M12
M10
M8
1. Fastening time (second) 2.Fasteningtorque
3.Properfasteningtorquecorrespondingtoeachbolt
diameter
Holdthetoolrmlyandplacethepointofthedriverbit
inthescrewhead.Applyforwardpressuretothetoolto
the extent that the bit will not slip off the screw and turn
the tool on to start operation.
NOTICE: If you use a spare battery to continue
the operation, rest the tool at least 15 min.

9ENGLISH
NOTE:Usetheproperbitfortheheadofthescrew/
bolt that you wish to use.
NOTE:WhenfasteningM8orsmallerscrew,carefully
adjustpressureontheswitchtriggersothatthescrew
is not damaged.
NOTE: Hold the tool pointed straight at the screw.
NOTE: If the impact force is too strong or you tighten
thescrewforatimelongerthanshowninthegures,
the screw or the point of the driver bit may be over-
stressed, stripped, damaged, etc. Before starting your
job,alwaysperformatestoperationtodeterminethe
proper fastening time for your screw.
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. Driver bit or socket bit
Failure to use the correct size driver bit or socket
bit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mannerofholdingthetoolorthematerial
of driving position to be fastened will affect the
torque.
5. 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.
Replacing carbon brushes
1
►1. Limit mark
Check the carbon brushes regularly.
Replace them when they wear down to the limit mark.
Keep the carbon brushes clean and free to slip in the
holders. Both carbon brushes should be replaced at the
sametime.Useonlyidenticalcarbonbrushes.
1. Useascrewdrivertoremovetwoscrewsthen
remove the rear cover.
1
2
►1. Rear cover 2. Screw
2. Raise the arm part of the spring and then place
it in the recessed part of the housing with a slotted bit
screwdriver of slender shaft or the like.
3
2
1
►1. Recessed part 2. Spring 3.Arm
3. Useplierstoremovethecarbonbrushcapsof
thecarbonbrushes.Takeouttheworncarbonbrushes,
insert the new ones and replace the carbon brush caps
in reverse.

10 ENGLISH
1
►1. Carbon brush cap
4. Make sure to place the lead wire in opposite side
of the arm.
1
2
►1. Lead wire 2. Carbon brush cap
5. Makesurethatthecarbonbrushcapshavetinto
the holes in brush holders securely.
1
2
►1. Hole 2. Carbon brush cap
6. Reinstall the rear cover and tighten two screws
securely.
7.
Insert the battery cartridge into the tool and break in
brushes by running tool with no load for about 1 minute.
8. Check the tool while running and electric brake
operation when releasing the switch trigger. If electric
brakeisnotworkingwell,askMakitaAuthorizedor
Factory Service Centers for repair.
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.
• Driverbits
• Hook
• Bitpiece
• Plasticcarryingcase
• Toolhanger
• Batteryprotector
• 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.

11

Makita Corporation
www.makita.com
885532-6
EN
20160606