Makita DUC256 User manual

INSTRUCTION MANUAL
Cordless Chain Saw
DUC256
DUC306
DUC356
DUC406
DUC256C
ENGLISH: Original instructions
Read before use.

2ENGLISH
SPECIFICATIONS
Model: DUC256 DUC306 DUC356 DUC406 DUC256C
Overall length (without guide bar) 270 mm
Rated voltage D.C. 36 V
Net weight 4.6 - 4.8 kg 4.7 - 4.9 kg 4.8 - 5.0 kg 4.8 - 5.1 kg 4.6 - 4.7 kg
Standard guide bar length 250 mm 300 mm 350 mm 400 mm 250 mm
Recommended guide bar
length
with 90PX 250 - 400 mm -
with 91PX 250 - 400 mm -
with 25AP -250 mm
Applicable saw chain type
(refer to the table below)
90PX
91PX
25AP
Standard sprocket Number of teeth 6 9
Pitch 3/8″ 1/4″
Chain speed 0 - 20 m/s
(0 - 1,200 m/min)
Chain oil tank volume 200 cm3
• 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
BL1830 / BL1830B / BL1840 / BL1840B / BL1850 / BL1850B / BL1860B
• Someofthebatterycartridgeslistedabovemaynotbeavailabledependingonyourregionofresidence.
WARNING: Only use the battery cartridges listed above. Use of any other battery cartridges may cause
injuryand/orre.
Saw chain, guide bar, and sprocket combination
Saw chain type 90PX
Number of drive links 40 46 52 56
Guide bar Guide bar length 250 mm 300 mm 350 mm 400 mm
Cutting length 238 mm 294 mm 350 mm 387 mm
Pitch 3/8″
Gauge 1.1 mm
Type Sprocket nose bar
Sprocket Number of teeth 6
Pitch 3/8″
Saw chain type 91PX
Number of drive links 40 46 52 56
Guide bar Guide bar length 250 mm 300 mm 350 mm 400 mm
Cutting length 238 mm 294 mm 350 mm 387 mm
Pitch 3/8″
Gauge 1.3 mm
Type Sprocket nose bar
Sprocket Number of teeth 6
Pitch 3/8″

3ENGLISH
Saw chain type 25AP
Number of drive links 60
Guide bar Guide bar length 250 mm
Cutting length 253 mm
Pitch 1/4″
Gauge 1.3 mm
Type Carving bar
Sprocket Number of teeth 9
Pitch 1/4″
WARNING:Useappropriatecombinationoftheguidebarandsawchain.Otherwisepersonalinjurymay
result.
Symbols
Thefollowingsshowthesymbolsusedfortheequip-
ment. Be sure that you understand their meaning before
use.
Read instruction manual.
Wear safety glasses.
Wear ear protection.
Wear a helmet, goggles and ear protection.
Use appropriate protection for foot-leg and
hand-arm.
Thissawistobeusedbyproperlytrained
operators only.
Do not expose to moisture.
Maximum permissible cut length
Always use two hands when operating the
chain saw.
Beware of chain saw kickback and avoid
contact with bar tip.
Direction of chain travel
Sawchainoiladjustment
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cuttingbranchesandpruning
trees. It is also suitable for tree service.
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.

4ENGLISH
Electrical safety
1. Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodiedplugsandmatchingoutletswill
reduce risk of electric shock.
2. Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators.Thereisanincreasedriskofelec-
tric shock if your body is earthed or grounded.
3. Do not expose power tools to rain or wet con-
ditions. Water entering a power tool will increase
the risk of electric shock.
4. Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts. Damaged or entangled cords
increase the risk of electric shock.
5. When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of
a cord suitable for outdoor use reduces the risk of
electric shock.
6. If operating a power tool in a damp location
is unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD reduces
the risk of electric shock.
7.
Power tools can produce electromagnetic elds
(EMF) that are not harmful to the user. However,
users of pacemakers and other similar medical
devices should contact the maker of their device and/
or doctor for advice before operating this power tool.
Personal safety
1. Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired or
under the inuence of drugs, alcohol or med-
ication. A moment of inattention while operating
powertoolsmayresultinseriouspersonalinjury.
2. Use personal protective equipment. Always
wear eye protection.Protectiveequipmentsuch
as a dust mask, non-skid safety shoes, hard hat or
hearing protection used for appropriate conditions
willreducepersonalinjuries.
3. Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
yourngerontheswitchorenergisingpowertools
that have the switch on invites accidents.
4. Remove any adjusting key or wrench before
turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may
resultinpersonalinjury.
5. Do not overreach. Keep proper footing and
balance at all times.Thisenablesbettercontrol
of the power tool in unexpected situations.
6. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair and clothing away
from moving parts.Looseclothes,jewelleryor
long hair can be caught in moving parts.
7. If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
dust collection can reduce dust-related hazards.
8.
Do not let familiarity gained from frequent use
of tools allow you to become complacent and
ignore tool safety principles. A careless action can
causesevereinjurywithinafractionofasecond.
9. Always wear protective goggles to protect
your eyes from injury when using power tools.
The goggles must comply with ANSI Z87.1 in
the USA, EN 166 in Europe, or AS/NZS 1336
in Australia/New Zealand. In Australia/New
Zealand, it is legally required to wear a face
shield to protect your face, too.
It is an employer's responsibility to enforce
the use of appropriate safety protective equip-
ments by the tool operators and by other per-
sons in the immediate working area.
Power tool use and care
1. Do not force the power tool. Use the correct
power tool for your application.Thecorrect
powertoolwilldothejobbetterandsaferatthe
rate for which it was designed.
2. Do not use the power tool if the switch does
not turn it on and off. Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
3. Disconnect the plug from the power source
and/or remove the battery pack, if detachable,
from the power tool before making any adjust-
ments, changing accessories, or storing power
tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
4. Store idle power tools out of the reach of chil-
dren and do not allow persons unfamiliar with
the power tool or these instructions to operate
the power tool. Power tools are dangerous in the
hands of untrained users.
5. Maintain power tools and accessories. Check
for misalignment or binding of moving parts,
breakage of parts and any other condition that
may affect the power tool’s operation. If dam-
aged, have the power tool repaired before use.
Many accidents are caused by poorly maintained
power tools.
6. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits
etc. in accordance with these instructions, tak-
ing into account the working conditions and
the work to be performed. Use of the power tool
for operations different from those intended could
result in a hazardous situation.

5ENGLISH
8.
Keep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles
and grasping surfaces do not allow for safe handling
and control of the tool in unexpected situations.
9. When using the tool, do not wear cloth work
gloves which may be entangled.Theentangle-
ment of cloth work gloves in the moving parts may
resultinpersonalinjury.
Battery tool use and care
1. Recharge only with the charger specied by
the manufacturer. A charger that is suitable for
onetypeofbatterypackmaycreateariskofre
when used with another battery pack.
2. Use power tools only with specically desig-
nated battery packs. Use of any other battery
packsmaycreateariskofinjuryandre.
3. When battery pack is not in use, keep it away
from other metal objects, like paper clips,
coins, keys, nails, screws or other small metal
objects, that can make a connection from one
terminal to another. Shorting the battery termi-
nalstogethermaycauseburnsorare.
4. Under abusive conditions, liquid may be
ejected from the battery; avoid contact. If con-
tact accidentally occurs, ush with water. If
liquid contacts eyes, additionally seek medical
help.Liquidejectedfromthebatterymaycause
irritation or burns.
5. Do not use a battery pack or tool that is dam-
aged or modied.Damagedormodiedbatteries
may exhibit unpredictable behaviour resulting in
re,explosionorriskofinjury.
6. Do not expose a battery pack or tool to re or
excessive temperature.Exposuretoreortem-
perature above 130 °C may cause explosion.
7. Follow all charging instructions and do not
charge the battery pack or tool outside the
temperature range specied in the instruc-
tions. Charging improperly or at temperatures
outsidethespeciedrangemaydamagethe
batteryandincreasetheriskofre.
Service
1. Have your power tool serviced by a qualied
repair person using only identical replacement
parts.Thiswillensurethatthesafetyofthepower
tool is maintained.
2. Never service damaged battery packs. Service
of battery packs should only be performed by the
manufacturer or authorized service providers.
3. Follow instruction for lubricating and chang-
ing accessories.
Cordless Chain saw safety warnings
1. Keep all parts of the body away from the saw
chain when the chain saw is operating. Before
you start the chain saw, make sure the saw chain
is not contacting anything. A moment of inatten-
tion while operating chain saws may cause entan-
glement of your clothing or body with the saw chain.
2. Always hold the chain saw with your right
hand on the top handle and your left hand on
the front handle. Holding the chain saw with a
reversedhandcongurationincreasestheriskof
personalinjuryandshouldneverbedone.
3. Hold the power tool by insulated gripping
surfaces only, because the saw chain may con-
tact hidden wiring.Sawchainscontactinga"live"
wire may make exposed metal parts of the power
tool"live"andcouldgivetheoperatoranelectric
shock.
4. Wear safety glasses and hearing protection.
Furtherprotectiveequipmentforhead,hands,
legsandfeetisrecommended.Adequateprotec-
tiveclothingwillreducepersonalinjurybyying
debris or accidental contact with the saw chain.
5. Always keep proper footing.
6. When cutting a limb that is under tension be
alert for spring back. When the tension in the
woodbresisreleasedthespringloadedlimbmay
strike the operator and/or throw the chain saw out
of control.
7. Use extreme caution when cutting brush and
saplings.Theslendermaterialmaycatchthesaw
chain and be whipped toward you or pull you off
balance.
8. Carry the chain saw by the front handle with
the chain saw switched off and away from your
body. When transporting or storing the chain
saw always t the guide bar cover. Proper
handling of the chain saw will reduce the likelihood
of accidental contact with the moving saw chain.
9. Follow instructions for lubricating, chain ten-
sioning and changing accessories. Improperly
tensioned or lubricated chain may either break or
increase the chance for kickback.
10. Keep handles dry, clean, and free from oil and
grease. Greasy, oily handles are slippery causing
loss of control.
11. Cut wood only. Do not use chain saw for pur-
poses not intended. For example: do not use
chain saw for cutting plastic, masonry or non-
wood building materials. Use of the chain saw for
operations different than intended could result in a
hazardous situation.
12. Causes and operator prevention of kickback:
Kickback may occur when the nose or tip of the
guidebartouchesanobject,orwhenthewood
closes in and pinches the saw chain in the cut.
Tipcontactinsomecasesmaycauseasudden
reverse reaction, kicking the guide bar up and
back towards the operator. Pinching the saw chain
along the top of the guide bar may push the guide
bar rapidly back towards the operator. Either of
these reactions may cause you to lose control of
the saw which could result in serious personal
injury.Donotrelyexclusivelyuponthesafety
devices built into your saw. As a chain saw user,
you should take several steps to keep your cutting
jobsfreefromaccidentorinjury.
Kickback is the result of tool misuse and/or incor-
rect operating procedures or conditions and can
be avoided by taking proper precautions as given
below:
• Maintainarmgrip,withthumbsandngers
encircling the chain saw handles, with both
hands on the saw and position your body
and arm to allow you to resist kickback
forces. Kickback forces can be controlled by
the operator, if proper precautions are taken.
Do not let go of the chain saw.

6ENGLISH
• Donotoverreachanddonotcutabove
shoulderheight.Thishelpspreventunin-
tended tip contact and enables better control
of the chain saw in unexpected situations.
•
Onlyusereplacementbarsandchainsspeciedby
the manufacturer. Incorrect replacement bars and
chains may cause chain breakage and/or kickback.
• Followthemanufacturer’ssharpeningand
maintenance instructions for the saw chain.
Decreasing the depth gauge height can lead
to increased kickback.
13. Before starting work, check that the chain
saw is in proper working order and that its
condition complies with the safety regulations.
Check in particular that:
• Thechainbrakeisworkingproperly;
• Therun-downbrakeisworkingproperly;
•
Thebarandthesprocketcoverarettedcorrectly;
• Thechainhasbeensharpenedandten-
sioned in accordance with the regulations.
14.
Do not start the chain saw with the chain cover
being installed on it. Starting the chain saw with the
chain cover being installed on it may cause the chain
cover to thrown out forward resulting in personal
injuryanddamagetoobjectsaroundtheoperator.
Additional Safety Warnings:
1.
When using the tool with battery adapter, be
careful not to trip over the cord during operation.
2. When using the tool with battery adapter, keep
the cord away from obstacles such as a work-
piece and branches during operation.Thecord
caughtbyobstaclesmaycauseseriousinjury.
Top handle chainsaw specic safety
warnings
1. This chain saw is designed especially for tree
care and surgery. The chain saw is intended
to be used by properly trained persons only.
Observe all instructions, procedures and recom-
mendations from the relevant professional orga-
nization. Otherwise fatal accidents may occur.
It is recommend that always using a rising
platform (cherry picker, lift) for sawing in trees.
Rappelling techniques are extremely dangerous
and require special training. The operators must
be trained to become familiar with safety equip-
ment usage and climbing techniques. Always
use the appropriate belts, ropes and carabiners
when working in trees. Always use restraining
equipment for both the operator and the saw.
2. Perform cleaning and maintenance before
storage in accordance with the instruction
manual.
3.
Ensure safe positioning of the chain saw during
car transportation to avoid fuel or chain oil
leakage, damage to the tool and personal injury.
4. Regularly check the functionality of chain brake.
5. Do not ll the chain oil near re. Never smoke
when you ll the chain oil.
6. National regulation may restrict the use of the
chain saw.
7. If the equipment gets heavy impact or fall,
check the condition before continuing work.
Check the controls and safety devices for mal-
function. If there is any damage or doubt, ask
our authorized service center for the inspec-
tion and repair.
8. Always activate the chain brake before starting
the chain saw.
9. Hold the saw rmly in place to avoid skating
(skid movement) or bouncing of the saw when
starting a cut.
10. At the end of the cut, be careful to keep your
balance due to the “drop”.
11. Take into account the direction and speed of
the wind. Avoid sawdust and chain oil mist.
Protective equipment
1. In order to avoid head, eye, hand or foot
injuries as well as to protect your hearing the
following protective equipment must be used
during operation of the chain saw:
— Thekindofclothingshouldbeappropriate,
i.e.itshouldbetight-ttingbutnotbea
hindrance.Donotwearjewelryorclothing
which could become entangled with bushes
or shrubs. If you have long hair, always wear
a hairnet!
— It is necessary to wear a protective helmet
wheneverworkingwiththechainsaw.The
protective helmet is to be checked in regu-
lar intervals for damage and is to be replaced
after 5 years at the latest. Use only approved
protective helmets.
— Theface shield of the protective helmet (or
the goggles) protects against sawdust and
wood chips. During operation of the chain
saw always wear a goggle or a face shield to
preventeyeinjuries.
— Wearadequatenoise protection equip-
ment (ear muffs, ear plugs, etc.)
— Theprotective jacket consists of 22 layers
of nylon and protects the operator against
cuts. It is always to be worn when working
from elevated platforms (cherry pickers,
lifts), from platforms mounted on ladders or
when climbing with ropes.
— Theprotective brace and bib overall is
made of a nylon fabric with 22 layers and
protects against cuts. We strongly recom-
mend its use.
— Protective gloves made of thick leather are
partoftheprescribedequipmentandmust
always be worn during operation of the chain
saw.

7ENGLISH
— During operation of the chain saw safety
shoes or safety bootsttedwithantiskid
sole, steel toe caps and protection for the
leg must always to be worn. Safety shoes
equippedwithaprotectivelayerprovide
protection against cuts and ensure a secure
footing. For working in trees the safety boots
mustbesuitableforclimbingtechniques.
Vibration
1. Individuals with poor circulation who are exposed
toexcessivevibrationmayexperienceinjuryto
blood vessels or the nervous system. Vibration
may cause the following symptoms to occur in the
ngers,handsorwrists:“Fallingasleep”(numb-
ness), tingling, pain, stabbing sensation, alteration
of skin colour or of the skin. If any of these symp-
toms occur, see a physician!Toreducetherisk
of“whitengerdisease”,keepyourhandswarm
duringoperationandwellmaintaintheequipment
and accessories.
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).

8ENGLISH
PARTS DESCRIPTION
345
78
14
15
17
9
1011
12
1920
22
18
13
16
26
21
1
1Battery indicator 2Check button 3Switch trigger
4Tophandle 5Lock-off lever 6Front hand guard
7Guide bar 8Saw chain 9Chain catcher
10 Retaining nut 11 Chainadjustingscrew 12 Battery cartridge
13 Main power lamp 14 Mode indicator 15 Main power switch
16 Cap 17 Adjustingscrew(foroilpump) 18 Carabiner
19 Front handle 20 Oil tank cap 21 Spike bumper
22 Guide bar cover ----

9ENGLISH
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.
Indicating the remaining battery
capacity
21
►1. Battery indicator 2. Check button
Press the check button to indicate the remaining battery
capacities.Thebatteryindicatorscorrespondtoeachbattery.
Battery indicator status Remaining
battery
capacity
On Off Blinking
50% to 100%
20% to 50%
0% to 20%
Charge 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 a few seconds.

10 ENGLISH
Indicator lamps Remaining
capacity
Lighted Off Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
Thebattery
may have
malfunctioned.
NOTE: Depending on the conditions of use and the
ambient temperature, the indication may differ slightly
from the actual capacity.
Tool / battery protection system
Thetoolisequippedwithatool/batteryprotectionsys-
tem.Thissystemautomaticallycutsoffpowertothe
motortoextendtoolandbatterylife.Thetoolwillauto-
matically stop during operation if the tool or battery is
placed under one of the following conditions:
Overload protection
When the battery is operated in a manner that causes
it to draw an abnormally high current, the tool automati-
cally stops and the main power lamp blinks in green. In
this situation, turn the tool off and stop the application
thatcausedthetooltobecomeoverloaded.Thenturn
the tool on to restart.
Overheat protection
When the tool or battery is overheated, the tool stops
automatically and the main power lamp lights up in red.
In this case, let the tool and battery cool before turning
the tool on again.
NOTE: In high temperature environment, the over-
heat protection likely to work and the tool stops
automatically.
Overdischarge protection
When the battery capacity is not enough, the tool stops
automatically and the main power lamp blinks in red. In
this case, remove the battery from the tool and charge
the battery.
Main power switch
WARNING: Always turn off the main power
switch when not in use.
Toturnonthetool,pressthemainpowerswitchuntil
themainpowerlamplightsupingreen.Toturnoff,
press the main power switch again.
21
3
►1. Main power lamp 2. Mode indicator 3. Main
power switch
NOTE:Themainpowerlampblinksingreenifthe
switch trigger is pulled under unoperatable conditions.
Thelampblinksinoneofthefollowingconditions.
•
When you turn on the main power switch while hold-
ing down the lock-off lever and the switch trigger.
• Whenyoupulltheswitchtriggerwhilethechain
brake is applied.
•
When you release the chain brake while holding
down the lock-off lever and pulling the switch trigger.
NOTE:Thistoolemploystheautopower-offfunction.
Toavoidunintentionalstartup,themainpowerswitch
will automatically shut down when the switch trigger
is not pulled for a certain period after the main power
switch is turned on.
YoucanusethetoolintheTorqueBoostmodeforcuttingthick
branchesorhardbranches.TousethetoolintheTorqueBoost
mode, when the tool is turned off, press the main power switch
for a few seconds until the mode indicator lights up in green.
NOTE: YoucanusethetoolintheTorqueBoostmodeup
to 60 seconds. Depending on the usage conditions, this
mode shifts to the normal mode in less than 60 seconds.
NOTE: If the mode indicator blinks in green when you press
themainpowerswitchforafewseconds,theTorqueBoost
mode is not available. In this case, follow the steps below.
• TheTorqueBoostmodeisnotavailablerightafterthecut-
ting operation. Wait for more than 10 seconds, and then
press the main power switch for a few seconds again.
• IfyouusetheTorqueBoostmodeseveraltimes,theuse
oftheTorqueBoostmodeisrestrictedtoprotectthebat-
tery.IftheTorqueBoostmodeisnotavailableafterwaiting
for more than 10 seconds, replace the battery cartridge
with a fully charged one, or recharge the battery cartridge.
NOTE: If the main power lamp lights up in red or blinks in red or
green, refer to the instructions for tool/battery protection system.

11 ENGLISH
Switch action
WARNING: For your safety, this tool is
equipped with lock-off lever which prevents the
tool from unintended starting. NEVER use the tool
if it runs when you simply pull the switch trigger
without pressing the lock-off lever. Return the
tool to our authorized service center for proper
repairs BEFORE further usage.
WARNING: NEVER tape down or defeat pur-
pose and function of lock-off lever.
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.
NOTICE: Do not pull the switch trigger hard with-
out pressing the lock-off lever. This can cause
switch breakage.
Topreventtheswitchtriggerfrombeingaccidentally
pulled,alock-offleverisprovided.Tostartthetool,
depress the lock-off lever and pull the switch trigger.
Thetoolspeedincreasesbyincreasingpressureonthe
switch trigger. Release the switch trigger to stop.
1
2
►1. Switch trigger 2. Lock-off lever
Checking the chain brake
CAUTION: Hold the chain saw with both
hands when switching it on. Hold the top handle
with your right hand, the front handle with your
left. The bar and the chain must not be in contact
with any object.
CAUTION: Should the saw chain not stop
immediately when this test is performed, the
saw may not be used under any circumstances.
Consult our authorized service center.
1. Press the lock-off lever, then pull the switch trig-
ger.Thesawchainstartsimmediately.
2. Push the front hand guard forwards with the back
of your hand. Make sure that the chain saw comes to an
immediate standstill.
1
23
23
► 1. Front hand guard 2. Unlocked position 3. Locked position
Checking the run-down brake
CAUTION: If the saw chain does not stop within
two seconds in this test, stop using the chain saw
and consult our authorized service center.
Run the chain saw then release the switch trigger completely.
Thesawchainmustcometoastandstillwithintwoseconds.
Adjusting the chain lubrication
Youcanadjusttheoilpumpfeedratewiththeadjustingscrew
usingtheuniversalwrench.Theamountofoilcanbeadjusted
in3steps.Openthecaptoadjusttheadjustingscrew.
1
2
►1. Cap 2.Adjustingscrew

12 ENGLISH
Carabiner (rope attachment point)
You can hang the tool by attaching the rope to the cara-
biner. Pull up the carabiner, and then tie it with the rope.
1
►1. Carabiner
Electronic function
Thetoolisequippedwiththeelectronicfunctionsfor
easy operation.
• Constantspeedcontrol
Thespeedcontrolfunctionprovidestheconstant
rotation speed regardless of load conditions.
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.
CAUTION: Do not touch the saw chain with
bare hands. Always wear gloves when handling
the saw chain.
Removing or installing saw chain
CAUTION: The saw chain and the guide bar
are still hot just after the operation. Let them cool
down enough before carrying out any work on
the tool.
CAUTION: Carry out the procedure of install-
ing or removing saw chain in a clean place free
from sawdust and the like.
Toremovethesawchain,performthefollowingsteps:
1. Release the chain brake by pulling the front hand
guard.
2. Loosenthechainadjustingscrew,thentheretain-
ing nut.
12
►1.Chainadjustingscrew2. Retaining nut
3. Remove the sprocket cover then remove the saw
chain and guide bar from the chain saw body.
Toinstallthesawchain,performthefollowingsteps:
1. Check the direction of the saw chain. Match the
direction of the saw chain with that of the mark on the
chain saw body.
2. Fit one end of the saw chain on the top of the
guide bar.
3. Fit the other end of the saw chain around the
sprocket, then attach the guide bar to the chain saw
body, aligning the hole on the guide bar with the pin on
the chain saw body.
12
►1. Sprocket 2. Hole

13 ENGLISH
4. Insert the protrusion and the pin on the sprocket
cover to the chain saw body, and then close the cover
so that the bolt and pin on the chain saw body meet
their counterparts on the cover.
2
3
4
1
4
►1. Protrusion 2. Sprocket cover 3. Bolt 4. Pin
5. Tightentheretainingnuttosecurethesprocket
cover,thenloosenitabitfortensionadjustment.
1
►1. Retaining nut
Adjusting saw chain tension
CAUTION: Do not tighten the saw chain too
much. Excessively high tension of saw chain may
cause breakage of saw chain and wear of the guide
bar.
CAUTION: A chain which is too loose can
jump off the bar and it may cause an injury
accident.
Thesawchainmaybecomelooseaftermanyhours
of use. From time to time check the saw chain tension
before use.
1. Release the chain brake by pulling the front hand
guard.
2. Loosen the retaining nut a bit to loosen the
sprocket cover lightly.
1
►1. Retaining nut
3. Liftuptheguidebartipslightlyandadjustthe
chaintension.Turnthechainadjustingscrewclockwise
to tighten, turn it counterclockwise to loosen.
For chain blade 90PX and 91PX:
Tightenthesawchainuntilthelowersideofthesaw
chaintsintheguidebarrailasillustrated.
1
2
3
►1. Guide bar 2. Saw chain 3.Chainadjustingscrew
For chain blade 25AP:
Tightenthesawchainsothatthegapbetweenthecen-
ter of the lower side of the guide bar and the saw chain
becomes approximately 1 mm to 2 mm.
4. Keep holding the guide bar lightly and tighten the
sprocket cover.
For chain blade 90PX and 91PX:
Make sure that the saw chain does not loose at the
lower side.
For chain blade 25AP:
Make sure that the gap between the center of the lower
side of the guide bar and the saw chain is approximately
1 mm to 2 mm.

14 ENGLISH
5.
Tightentheretainingnuttosecurethesprocketcover.
1
►1. Retaining nut
OPERATION
Lubrication
Saw chain is automatically lubricated when the tool is in
operation. Check the amount of remaining oil in the oil
tank periodically through the oil inspection window.
Torellthetank,laythechainsawonitsside,thenpush
theoiltankcap,andthenremovetheoiltankcap.The
properamountofoilis200ml.Afterrellingthetank,
make sure that the oil tank cap is tightened securely.
1
2
►1. Oil tank cap 2. Oil inspection window
Afterrelling,holdthechainsawawayfromthe
tree. Start it and wait until lubrication on saw chain is
adequate.
NOTICE: When lling the chain oil for the rst
time, or relling the tank after it has been com-
pletely emptied, add oil up to the bottom edge of
the ller neck. The oil delivery may otherwise be
impaired.
NOTICE: Use the saw chain oil exclusively for
Makita chain saws or equivalent oil available in
the market.
NOTICE: Never use oil including dust and parti-
cles or volatile oil.
NOTICE: When pruning trees, use botanical oil.
Mineral oil may harm trees.
NOTICE: Before the cutting operation, make sure
that the provided oil tank cap is screwed in place.
WORKING WITH THE CHAIN SAW
CAUTION: The rst time user should, as a
minimum practice, do cutting logs on a saw-horse
or cradle.
CAUTION: When sawing precut timber, use a
safe support (saw horse or cradle). Do not steady
the workpiece with your foot, and do not allow
anyone else to hold or steady it.
CAUTION: Secure round pieces against
rotation.
CAUTION: Keep all parts of the body away
from the saw chain when the motor is operating.
CAUTION: Hold the chain saw rmly with
both hands when the motor is running.
CAUTION: Do not overreach. Keep proper
footing and balance at all times.
NOTICE: Never toss or drop the tool.
NOTICE: Do not cover the vents of the tool.
Pruning trees
Bring the chain saw body into contact with the branch to
be cut before switching on. Otherwise it may cause the
guidebartowobble,resultingininjurytooperator.Saw
thewoodtobecutbyjustmovingitdownbyusingthe
weight of the chain saw.

15 ENGLISH
If you cannot cut the timber right through with a single
stroke:
Apply light pressure to the handle and continue sawing
and draw the chain saw back a little.
Whencuttingthickbranches,rstmakeashallow
undercutandthenmakethenishcutfromthetop.
1
2
If you try to cut off thick branches from the bottom, the
branch may close in and pinch the saw chain in the cut.
If you try to cut off thick branches from the top without a
shallow undercut, the branch may splinter.
Bucking
1. Rest the chain saw body on the wood to be cut.
2. With the saw chain running, saw into the wood
while using the top handle to raise the saw and the front
one to guide it.
3. Continue the cut by applying slight pressure to the
top handle, easing the saw back slightly.
NOTICE: When making several cuts, switch the
chain saw off between cuts.
CAUTION: If the upper edge of the bar is used
for cutting, the chain saw may be deected in
your direction if the chain becomes trapped. For
this reason, cut with the lower edge, so that the
saw will be deected away from your body.
When you cut a wood under tension, cut the pressured
side(A)rst.Thenmakethenalcutfromthetensioned
side(B).Thispreventsthebarfrombecomingtrapped.
A
B
A
B

16 ENGLISH
Limbing
CAUTION: Limbing may only be performed by
trained persons. A hazard is presented by the risk
of kickback.
When limbing, support the chain saw on the trunk if
possible. Do not cut with the tip of the bar, as this pres-
ents a risk of kickback.
Pay particular attention to branches under tension. Do
not cut unsupported branches from below.
Do not stand on the felled trunk when limbing.
Carrying tool
Before carrying the tool, always apply the chain brake
andremovethebatterycartridgesfromthetool.Then
attach the guide bar cover. Also cover the battery car-
tridge with the battery cover.
1
2
►1. Guide bar cover 2. Battery cover
MAINTENANCE
CAUTION: Always be sure that the tool is
switched off and the battery cartridge is removed before
attempting to perform inspection or maintenance.
CAUTION: Always wear gloves when perform-
ing any 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.
Sharpening the saw chain
Sharpen the saw chain when:
•
Mealysawdustisproducedwhendampwoodiscut;
• Thechainpenetratesthewoodwithdifculty,even
whenheavypressureisapplied;
• Thecuttingedgeisobviouslydamaged;
• Thesawpullstotheleftorrightinthewood.
(caused by uneven sharpening of the saw chain or
damage to one side only)
Sharpenthesawchainfrequentlybutalittleeachtime.Two
orthreestrokeswithaleareusuallysufcientforroutine
resharpening. When the saw chain has been resharpened sev-
eral times, have it sharpened in our authorized service center.
Sharpening criteria:
WARNING: An excessive distance between
the cutting edge and depth gauge increases the
risk of kickback.
22
11
31
►1. Cutter length 2. Distance between cutting edge
and depth gauge 3. Minimum cutter length (3 mm)
— Allcutterlengthmustbeequal.Differentcutter
lengths prevent the saw chain from running
smoothly and may cause the saw chain to break.
— Do not sharpen the chain when the cutter length
hasreached3mmorshorter.Thechainmustbe
replaced with new one.
— Thechipthicknessisdeterminedbythedistance
between the depth gauge (round nose) and the
cutting edge.
— Thebestcuttingresultsareobtainedwithfollowing
distance between cutting edge and depth gauge.
• Chainblade90PX:0.65mm
• Chainblade91PX:0.65mm
• Chainblade25AP:0.65mm
30
30
55 55
— Thesharpeningangleof30°mustbethesameon
all cutters. Different cutter angles cause the chain
to run roughly and unevenly, accelerate wear, and
lead to chain breaks.
— Useasuitableroundlesothatthepropersharp-
ening angle is kept against the teeth.
• Chainblade90PX:55°
• Chainblade91PX:55°
• Chainblade25AP:55°

17 ENGLISH
File and le guiding
— Useaspecialroundle(optionalaccessory)for
saw chains to sharpen the chain. Normal round
lesarenotsuitable.
— Diameteroftheroundleforeachsawchainisas
follows:
• Chainblade90PX:4.5mm
• Chainblade91PX:4.0mm
• Chainblade25AP:4.0mm
— Theleshouldonlyengagethecutteronthefor-
wardstroke.Lifttheleoffthecutteronthereturn
stroke.
— Sharpentheshortestcutterrst.Thenthelength
of this shortest cutter becomes the standard for all
other cutters on the saw chain.
— Guidetheleasshowninthegure.
1
2
►1. File 2. Saw chain
— Thelecanbeguidedmoreeasilyifaleholder
(optionalaccessory)isemployed.Theleholder
has markings for the correct sharpening angle of
30° (align the markings parallel to the saw chain)
and limits the depth of penetration (to 4/5 of the
lediameter).
30
1/5
1
►1. File holder
— After sharpening the chain, check the height of the
depth gauge using the chain gauge tool (optional
accessory).
— Removeanyprojectingmaterial,howeversmall,
withaspecialatle(optionalaccessory).
— Round off the front of the depth gauge again.
Cleaning the guide bar
Chips and sawdust will build up in the guide bar groove.
Theymayclogthebargrooveandimpairtheoilow.
Clean out the chips and sawdust every time when you
sharpen or replace the saw chain.
Cleaning the sprocket cover
Chips and saw dust will accumulate inside of the
sprocket cover. Remove the sprocket cover and saw
chain from the tool then clean the chips and saw dust.

18 ENGLISH
Cleaning the oil discharge hole
Small dust or particles may be built up in the oil dis-
chargeholeduringoperation.Thesedustorparticles
mayimpairtheoiltoowandcauseaninsufcient
lubrication on the whole saw chain. When a poor chain
oil delivery occurs at the top of guide bar, clean the oil
discharge hole as follows.
1. Remove the sprocket cover and saw chain from
the tool.
2. Remove the small dust or particles using a slotted
screwdriver or the like.
1
2
►1. Slotted screwdriver 2. Oil discharge hole
3. Insert the battery cartridge into the tool. Pull the
switchtriggertoowbuilt-updustorparticlesofftheoil
discharge hole by discharging chain oil.
4. Remove the battery cartridge from the tool.
Reinstall the sprocket cover and saw chain on the tool.
Replacing the sprocket
CAUTION: A worn sprocket will damage a
new saw chain. Have the sprocket replaced in this
case.
Beforettinganewsawchain,checktheconditionof
the sprocket.
1
2
►1. Sprocket 2. Areas to be worn out
Alwaystanewlockingringwhenreplacingthe
sprocket.
1
2
►1. Locking ring 2. Sprocket
NOTICE: Make sure that the sprocket is installed
as shown in the gure.
Storing the tool
1. Clean the tool before storing. Remove any chips
and sawdust from the tool after removing the sprocket
cover.
2. After cleaning the tool, run it under no load to lubri-
cate the saw chain and guide bar.
3. Cover the guide bar with the guide bar cover.
4. Empty the oil tank.

19 ENGLISH
Instructions for periodic maintenance
Toensurelonglife,preventdamageandensurethefullfunctioningofthesafetyfeatures,thefollowingmaintenance
must be performed regularly. Warranty claims can be recognized only if this work is performed regularly and prop-
erly.Failuretoperformtheprescribedmaintenanceworkcanleadtoaccidents!Theuserofthechainsawmustnot
perform maintenance work which is not described in the instruction manual. All such work must be carried out by our
authorized service center.
Check item / Operating time Before
operation
Everyday Every week Every 3
month
Annually Before
storage
Chain saw Inspection. -----
Cleaning. -----
Check at
authorized
service center.
----
Saw chain Inspection. -----
Sharpening if
necessary.
-----
Guide bar Inspection. ----
Remove from
the chain saw.
-----
Chain brake Check the
function.
-----
Have it
inspected
regularly at
authorized
service center.
--- - -
Chain
lubrication
Check the oil
feed rate.
-----
Switch trigger Inspection. -----
Lock-off lever Inspection. -----
Oil tank cap Check
tightness.
-----
Chain catcher Inspection. - - ---
Screws and
nuts
Inspection. - - ---

20 ENGLISH
TROUBLESHOOTING
Beforeaskingforrepairs,conductyourowninspectionrst.Ifyoundaproblemthatisnotexplainedinthemanual,
do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Centers, always using Makita replace-
ment parts for repairs.
Malfunction status Cause Action
Thechainsawdoesnotstart. Battery cartridge is not installed. Install a charged battery cartridge.
Battery problem (low voltage). Recharge the battery cartridges. If recharg-
ing is not effective, replace the battery
cartridge.
Main power switch is off. Thechainsawisautomaticallyturnedoffif
itisun-operatedforacertainperiod.Turn
on the main power switch again.
Thesawchaindoesnotrun. Chain brake activated. Release chain brake.
Themotorstopsrunningafteralittleuse. Battery's charge level is low. Recharge the battery cartridges. If recharg-
ing is not effective, replace the battery
cartridge.
No oil on the chain. Oil tank is empty. Fill the oil tank.
Oil guide groove is dirty. Clean the groove.
Poor oil delivery. Adjusttheamountofoildeliverywiththe
adjustingscrew.
Thechainsawdoesnotreachmaximum
RPM.
Battery cartridge is installed improperly. Install the battery cartridges as described
in this manual.
Battery power is dropping. Recharge the battery cartridge. If recharg-
ing is not effective, replace the battery
cartridge.
Thedrivesystemdoesnotworkcorrectly. Ask the authorized service center in your
region for repair.
Themainpowerlampisblinkingingreen. Switch trigger is pulled under an unoperat-
able condition.
Pull the switch trigger after the main power
switch is turned on and the chain brake is
released.
Chain does not stop even the chain brake
is activated:
Stop the machine immediately!
Thebrakebandisworndown. Ask the authorized service center in your
region for repair.
Abnormal vibration:
Stop the machine immediately!
Loose guide bar or saw chain. Adjusttheguidebarandsawchain
tension.
Toolmalfunction. Ask the authorized service center in your
region for repair.
TheTorqueBoostmodeisnotavailable
after replacing the battery cartridge with a
fully charged one.
Depending on the usage conditions, the
TorqueBoostmodeisnotavailableafter
replacing the battery cartridge.
Use the tool in the normal mode until the
installed battery cartridge becomes empty,
and then replace the battery cartridge with
a fully charged one, or recharge the battery
cartridge.
Thesawchaincannotbeinstalled. Thecombinationofsawchainand
sprocket is not correct.
Use the correct combination of saw chain
and sprocket by referring to the section for
specications.