Makita DCS 9010 User manual

1
Important:
Read this instruction manual carefully before putting the chain saw into operation and strictly observe
the safety regulations!
Keep this Instruction Manual!
DCS9010
Instruction Manual
Original Instruction Manual

2
Thank you for purchasing a MAKITA product
We want you to be satisÞed with your MAKITA product.
You have decided to buy one of the most up-to-date chain
saws.
The MAKITA chain saw DCS9010 is a high-efÞciency, modern
chain saw for professional application, which can be used for
cutting strong wood. It is ideal for the use in forests and for
cutting long wood in sawmills.
Due to its high-power driving mechanism it is most useful for
cutting down strong trees. At the same time the chain saw is
of a slim, practical design which allows to carry out tension
releasing work without any difÞculties.
The MAKITA DCS9010 is a high-efÞciency universal chain saw
for hard work in forests.
Youhavepurchasedahigh-efÞciencydeviceofanewgeneration,
which has the following outstanding characteristics:
- Excellent power to weight ratio, i. e. high engine power
combined with low weight.
- A high torque at a low rate of revolutions as a result of a
favorable stroke-bore ratio, a computer calculated cylinder
design and an asymmetric combustion chamber.
- Consequently you can use a very wide speed range in which
the engine has a high output. In addition, the chain saw has
a low fuel consumption and as a result only a low emission
of polluting substances.
- The intelligent, programme controlled ignition system
works maintenance-free and allows easy starting, smooth
idling and good running at all speeds.
- The modern light-weight driving mechanism guarantees
fast speeding up, as well as a low rate of vibrations which
is advantageous not only to the device but also to the ope-
rator.
- A particularly easy to service as well as operate, with ergo-
nomicall handle.
The following industrial property rights apply: US 5411382,
EP 0440827, EP 0560201, GBM 8909508, GBM 8913638,
GBM 9203378.
In order to guarantee the optimal function and performance of
your power chain saw and to ensure your personal safety we
would request you to perform the following:
Read this instruction manual carefully before putting the
chain saw into operation for the Þrst time, and strictly
observe the safety regulations! Failure to observe these
precautions can lead to severe injury or death!
Table of contents Page
Packing .................................................................................2
Delivery inventory ...............................................................3
Symbols ................................................................................3
SAFETY PRECAUTIONS .....................................................4
General precautions .........................................................4
Protective equipment ........................................................4
Fuels / Refuelling ..............................................................5
Putting into operation........................................................5
Kickback ...........................................................................6
Working behavior/Method of working............................ 6-7
Transport and storage.......................................................8
Maintenance .....................................................................8
First aid .............................................................................8
Technical data ......................................................................9
Denomination of components ............................................9
PUTTING INTO OPERATION .............................................10
Mounting the guide bar and saw chain......................10-11
Tightening the saw chain................................................11
Chain brake ....................................................................11
Fuels / Refuelling ...................................................... 12-13
Adjusting the chain lubrication........................................13
Starting and stopping the engine....................................14
Checking the chain brake ..............................................14
Checking the chain lubrication........................................14
Adjusting the carburetor ............................................. 15-16
Working in winter ..............................................................16
MAINTENANCE ..................................................................17
Sharpening the saw chain ........................................ 17-18
Cleaning the guide bar....................................................18
Cleaning the chain brake band.......................................18
Checking and replacing the sprocket..............................19
Replacing/cleaning the spark arrester screen (only for Europe)....19
Checking the mufßer screws...........................................19
Replacing the starter cable.............................................20
Replacing the return spring.............................................20
Replacing the suction head ............................................20
Cleaning the air Þlter.......................................................21
Replacing the spark plug ................................................21
Replacing the vibration damper......................................22
Instructions for periodic maintenance.............................23
Service, spare parts and guarantee ........................... 23-24
Troubleshooting ................................................................24
Extract from spare parts list .............................................25
EU Conformity Declaration ...............................................26
Note .....................................................................................27
Packing
TheMAKITADCS9010willbedeliveredinaprotectivecardboard
box to prevent transport damage.
Cardboardisa basic raw materialandisconsequentlyreuseable
or suitable for recycling (waste paper recycling).
Intended use
Power chain saws
This power chain saw may be used only for sawing wood out
of doors. It is intended for the followung uses depending on
its class:
- Professionalandmid-class:Use on small, medium and lar-
ge trees: felling, limb removal, cutting to length, thinning.
- Hobbyklasse:Occasionaluseon small trees, fruit-tree care,
felling, limb removal, cutting to length.
Unauthorised users:
Persons who are not familiar with the Instruction Manual, chil-
dren, young people, and persons under the inßuence of drugs,
alcohol or medication must not use this saw.

3
3
4
5
2
1
Delivery inventory
1. MAKITA chain saw DCS9010
2. Guide bar
3. Saw chain
4. Chain protection cover
5. Assembly tool
6. Instruction manual (not shown)
In case that one of the parts listed should not be included in
the delivery inventory, please, consult your sales agent.
On/Off switch
Stop engine!
Carburetor adjustment
Choke lever
Wear protective
gloves!
Chain brake
Caution, Kickback!
Fuel and oil mixture
Chain oil Þll/oil pump
Working in winter
First aid
Recycling
CE-Marking
Symbols
You will notice the following symbols on the chain saw and in the instruction manual:
Read instruction manual
and follow the warnings-
and safety precautions!
Particular care and
caution!
Forbidden!
Wear protective helmet,
eye and ear protection!
No smoking!
No open Þre!
Engine-manual start

4
SAFETY PRECAUTIONS
General precautions
- To ensure correct operation the userhastoreadthisinstruc-
tion manual to make himself familiar with the characteristics
of the chain saw. Users insufÞciently informed will endanger
themselves as well as others due to improper handling.
- It is recommended to lend the chain saw only to people who
are experienced in working with chain saws. Always hand over
the instruction manual.
- Firstusersshould ask the dealerforbasicinstructionsto become
familiarized with the characteristics of engine powered sawing
or even attend a recognized course of instruction.
NOTE:
forinexperiencedandÞrst-timeuserswe
recommend the use of reduced-kickback saw chains for added
safety (see "Kickback", page 6). Ask your MAKITA dealer.
- Children and young persons aged under 18 years must not be
allowed to operate the chain saw. Persons over the age of 16
years may, however, use the chain saw for the purpose of being
trained as long as they are under the supervision of a qualiÞed
trainer.
- Use chain saws always with the utmost care and attention.
- Operate the chain saw only if you are in good physical condition.
If you are tired, your attention will be reduced. Be especially
careful at the end of a working day. Perform all work calm and
carefully. The user has to accept liability for others.
- Never use the chain saw after having consumed alcohol,
drugs or medication.
- A Þre extinguisher must be available in the near vicinity when
working in easily inßammable vegetation or when it has not
rained for a long time (danger of Þre).
Protective equipment
- 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-Þtting but not be a hindrance. Do not wear jewellery
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 (1) is to be checked
in regular intervals for damage and is to be replaced after 5
years at the latest. Use only approved protective helmets.
- The face shield (2) 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 equipment (ear muffs (3),
ear plugs, etc.). Octave brand analysis upon request.
- The safety jacket (4) is provided with special signal coloured
shoulder straps and is comfortable and easy to care for.
- The protective brace and bib overall (5) is made of a nylon
structure with 22 layers and protects against cuts. We strongly
recommend its use.
- Protective gloves (6) made of thick leather are part of the
prescribed equipment and must always be worn during
operation of the chain saw.
- During operation of the chain saw safety shoes or safety
boots (7) Þtted with anti skid sole, steel toe caps and protection
for the leg are always to be used. Safety shoes equipped with
a protective layer provide protection against cuts and ensure
a secure footing.
1
4
3
2

5
6
5
7
9
8
● Maintenance ● Stopping work
● Refuelling ● Transport
● Sharpening the chain ● Putting out of
function
3 meters
Fuels / Refuelling
- Stop the engine before refuelling the chain saw.
- Do not smoke or work near open Þres (5).
- Let the engine cool down before refuelling.
- Fuels can contain substances similar to solvents. Eyes and skin
should not come in contact with mineral oil products.Always wear
protective gloves when refuelling. Frequently clean and change
protective clothes. Do not breathe in fuel vapors. Inhalation of fuel
vapours can be hazardous to your health.
- Do not spill fuel or chain oil. When you have spilt fuel or oil imme-
diately clean the chain saw. Fuel should not come in contact with
clothes. If your clothes have come in contact with fuel, change
them ot once.
- Ensure that no fuel or chain oil oozes into the soil (environmental
protection). Use an appropriate base.
- Refuelling is not allowed in closed rooms. Fuel vapors will accu-
mulate near the ßoor (explosion hazard).
- Ensure to Þrmly tighten the screw caps of the fuel and oil tanks.
- Change the place before starting the engine (at least 3 m
from the place of refuelling) (6).
- Fuel cannot be stored for an unlimited period of time. Buy
only as much as will be consumed in the near future.
- Use only approved and marked containers for the transport and
storage of fuel and chain oil. Ensure children have no access to
fuel or chain oil.
Putting into operation
- Do not work on your own. Another person must be nearby
in case of emergencies (within shouting distance).
- Ensure that there are no children or other people within the
working area. Pay attention to any animals in the working
area, as well (7).
- Before starting work the chain saw must be checked for per-
fect function and operating safety according to the prescrip-
tions.
Check especially the function of the chain brake, the correct
mounting of the guide bar, the correct sharpening and tighten-
ing of the chain, the Þrm mounting of the sprocket guard,
the easy motion of the throttle lever and the function of the
throttle lever lock, the cleanliness and dryness of the handles, and
the function of the ON/OFF switch.
- Put the chain saw only into operation if it is completely
assembled. Never use the chain saw when it is not com-
pletely assembled.
- Before starting the chain saw ensure that you have a safe foo-
ting.
- Putthechainsawintooperation onlyasdescribedinthisinstruction
manual (8). Other starting methods are not allowed.
- When starting the chain saw it must be well supported and se-
curely held. The guide bar and chain must not be in contact with
any object.
- When working with the chain saw always hold it with both
hands. Take the back handle with the right hand and the tubular
handle with the left hand. Hold the handles tightly with your thumbs
facing your Þngers.
- CAUTION: When releasing the throttle lever the chain will
keep on running for a short period of time (free-wheeling).
- Continuously ensure that you have a safe footing.
- Hold the chain saw so that you will not breathe in the exhaust gas.
Do not work in closed rooms (danger of being contaminated).
- Switch off the chain saw immediately if you observe any
changes in its operating behavior.
- The engine must be switched off before checking the
chain tension, tightening the chain, replacing it or
clearing malfunctions (9).
- Whenthesawingdeviceishitbystones,nailsor other hard objects,
switch off the engine immediately and check the sawing device.
- When stopping work or leving the working place switch off the
chain saw (9) and put it down such that nobody is endangered.
- Do not put the overheated power chain saw in dry grass or on
any inßammable objects. The mufßer is very hot (danger of Þre).
- CAUTION: Oil dropping from the chain or guide bar after having
stopped the saw chain will pollute the soil. Always use an appro-
priate base.

6
10
12
13
14
11
Kickback
- When working with the chain saw dangerous kickbacks may
occur.
- Kickbacks are produced when the upper part of the end of
the guide bar inadvertently touches wood or other hard ob-
jects (10).
- In this case the chain saw is thrown without any control and
with high energy potentials in the direction of the user (risk of
injuries).
In order to prevent kickbacks follow the instructions given
below:
- When timber must be pierced for cutting it is urgently re-
commendedtohave these works carriedoutbyspeciallytrained
people only.
- Never apply the end of the bar when starting to make a cut.
- Always observe the end of the guide bar. Be careful when
continuing an already done cut.
- When starting to cut the chain must be running.
- Ensurethat the chain is alwayssharpenedcorrectly. Pay special
attention to the hight of the depth limiter.
- Never cut several branches at the same time. When cutting a
branch ensure that no other branch is touched.
- When crosscutting a trunk be aware of the trunks next to it.
Working behavior/Method of working
- Only use the chain saw during good light and visibility periods.
Be aware of slippery or wet areas, and of ice and snow (risk of
slipping). The risk of slipping is extremely high when working
on recently peeled wood (bark).
- Never work on unstable surfaces. Make sure that there are no
obstacles in the working area, risk of stumbling. Always ensure
that you have a safe footing.
- Never saw above your shoulder height (11).
- Never saw while standing on a ladder.
- Never climb up into trees to perform sawing with the chain
saw.
- Never bend forward by far to perform sawing.
- Guide the chain saw in such a way that no part of your body is
within the elongated swivelling range of the saw (12).
- Use the chain saw for sawing wood only.
- Avoid to touch the ground with the chain saw while it is still
running.
- Never use the chain saw for lifting up or removing pieces of
wood or other objects.
- Remove foreign bodies such as sand, stones and nails found
withintheworking area. Foreign bodiesmaydamagethesawing
device and can cause dangerous kickbacks.
- When sawing precut timber use a safe support (sawing jack,
13). Do not ask anyone to hold the wood, and do not hold it
with your foot.
- Forcuttingdown trees or performingcrosscutsthetoothed
ledge (13,Z) must be applied to the wood to be cut.
- Before performing a crosscut Þrmly apply the toothed ledge
to the timber, only then can the timber be cut with the chain
running. For this the chain saw is lifted at the back handle and
guided with the tubular handle. The toothed ledge serves as a
centerofrotation. Continue by slightlypressingdownthetubular
handle and simultaneously pulling backwards the chain saw.
Apply the toothed ledge a little bit deeper and once again lift
the back handle.
- When the timber must be pierced for cutting or longitudinal
cuts are to be performed it is urgently recommended to
have these works carried out by specially trained persons
only (high risk of kickbacks).
-For performing longitudinal cuts (14) apply the sawing device
at an angle which is as small as possible. Be very careful when
carrying out this kind of work because the toothed ledge cannot
be used.
- The sawing device must be running whenever you remove
the chain saw from the timber.
- Whenperformingseveralcuts the throttle lever mustbereleased
in between.
Z



7
15
16
17
18
19
45°
2 1/2
= cutting down area
45°
- Be careful when cutting splintery wood. Cut pieces of wood
may be pulled along (risk of injuries).
- When cutting with the bottom edge of the guide bar, the chain
saw may be pushed in the direction of the user if the chain gets
clamped. For this reason use the top edge of the bar whenever
possible. The chain saw will then be pushed away from you
(15).
- If the timber is not free of tension (16), Þrst cut the pressure
side (A). Then the crosscut can be performed on the tension
side (B). Thus clamping of the guide bar can be avoided.
CAUTION:
People cutting down trees or performing tension releasing
works must be specially trained. High risk of injuries.
- When releasing the tension, the chain saw should be supported
on the trunk. Do not use the end of the bar for cutting (risk of
kickbacks).
- Be aware of branches under tension. Do not cut free branches
from below.
- Never perform tension releasing works while standing on the
trunk.
- Before cutting down a tree ensure that
a) only those people are within the working area which are
actually involved in cutting down the tree
b) every worker involved can withdraw without stumbling (the
people should withdraw backwards in a diagonal line, i. e.
at a degree of 45°).
c) the bottom part of the trunk is free from foreign bodies, un-
derbrush and branches. Make sure to have a safe footing
(risk of stumbling).
d) the next working place is at least 2 1/2 tree lengths away
(17). Before cutting down the tree check the direction of fall
and make sure that there are neither any people nor objects
within a distance of 2 1/2 tree lengths.
- Judging the tree:
Direction of hanging - loose or dry branches - height of the tree
- natural hang over - is the tree rotten?
- Take into account the direction and the velocity of the wind. If
strong gusts are occurring, do not perform any cutting down
works.
- Cutting the roots:
Start with the strongest root. First perform the vertical and then
the horizontal cut.
- Notching the trunk (A, 18):
The notch determines the direction of fall and guides the tree.
The trunk is notched perpendicular to the direction of fall and
penetrates 1/3 -1/5 of the trunk diameter. Perform the cut near
the ground.
- When correcting the cut, always do so over the whole width of
the notch.
- Cut down the tree (B, 19) above the bottom edge of the notch
(D). The cut must be exactly horizontal. The distance between
both cuts must be approx. 1/10 of the trunk diameter.
- The material between both cuts (C) serves as a hinge. Never
cut it through, otherwise the tree will fall without any control.
Insert felling wedges in time.
- Secure the cut only with wedges made of plastic or aluminium.
Do not use iron wedges.
- When cutting down a tree always stay sidewards of the falling
tree.
- When withdrawing after having performed the cut, be aware of
falling branches.
- When working on a sloping ground the user of the power chain
saw must stay above or sidewards of the trunk to be cut or the
already cut down tree.
- Be aware of trunks which may roll towards you.

8
Transport and storage
- When changing your position during work switch off the chain
saw and actuate the chain brake in order to prevent an inad-
vertent start of the chain.
- Never carry or transport the chain saw with the chain run-
ning.
- When transporting the chain saw over long distances the guide
bar protection cover (delivered with the chain saw) must be
applied.
- Carry the chain saw with the tubular handle. The guide bar
indicates backwards (20). Avoid to come in contact with the
mufßer (danger of burning).
- Ensure safe positioning of the chain saw during car trans-
portation to avoid fuel or chain oil leakage.
- Store the chain saw safely in a dry place. It must not be stored
outdoors. Keep the chain saw away from children.
- For storing the chain saw over a long period of time or shipping
it the fuel and oil tanks must be completely emptied.
Maintenance
- Beforeperformingmaintenanceworks switch off the chain
saw (21) and pull out the plug cap.
- Before starting work always check the operating safety of
the chain saw, in particular the function of the chain brake.
Make sure that the chain is always sharpened and tightened
correctly (22).
- Operate the chain saw only at a low noise and emission level.
For this ensure the carburetor is adjusted correctly.
- Regularly clean the chain saw.
- Regularly check the tank cap for tightness.
Observe the accident prevention instructions issued by
the trade federations and insurance companies. Do not
perform any modiÞcations on the chain saw. You will risk
your safety.
Perform only the maintenance and repair works described in
the instruction manual. All other works must be carried out by
the MAKITA service.
Use only original MAKITA spare parts and accessories.
Applying spare parts which are not original MAKITA parts or
accesoriesandguide bar/chain combinations orlengthsresults
in a high risk of accidents. For accidents and damage resulting
from using sawing devices or accesories which have not been
approved we cannot accept any responsibility.
First aid
For the event of a possible accident, please, make sure that a
Þrst aid box is always immediately available in the near vicinity.
Immediately replace any items used from the Þrst aid box.
Should you ask for help, please, give the following infor-
mation:
- place of accident
- what happened
- number of injured people
- kind of injuries
- your name!
NOTE
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 Þn-
gers, hands or wrists: ”Falling asleep” (numbness), tingling, pain,
stabbing sensation, alteration of skin colour or of the skin. If any
of these symptoms occur, see a physician!
20
21
22
23
24
SERVICE

9
13
14 15
17 18
24
19
22
18
7
6
5
4
2
11 10 9
3
16
20
23
21
12
Technical data DCS9010
IdentiÞcation plate (12)
Indicate when ordering spare parts
Serial number
Year of manufacture
Stroke volume cm3 90
Bore mm 52
Stroke mm 42
Max. power at speed kW / RPM 4.9 / 9,500
Max. torque at speed Nm / RPM 5.8 / 6,500
Limit speed RPM 13,500
Idling speed RPM 2,200
Coupling speed RPM 3,600
Sound pressure level LpA, eq per ISO 22868 1) 3) 4) dB(A) 103 / KpA = 2,5
Sound power level LWA, eq per ISO 22868 1) 4) dB(A) 110 / KWA = 2,5
Vibration acceleration ahv, eq per ISO 22867 1) 4)
- Tubular handle m/s27.0 / K=2
- Rear handle m/s26.2 / K=2
Carburetor (diaphragm carburetor) Type TILLOTSON HS-295A
Ignition system Type electronic
Spark plug Type NGK BPMR 7A
Electrode gap mm 0.5 - 0.8
or spark plug Type BOSCH WSR 6F
Fuel consumption at max. load per ISO 7293 kg/h 2.3
SpeciÞc consumption at max. load per ISO 7293 g/kWh 480
Fuel tank capacity l 1.0
Chain oil tank capacity I 0.4
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA oil 50:1
- when using Aspen Alkylat (two-stroke fuel) 50:1 (2%)
- when using other oils 50:1 (quality grade: JASO FC or ISO EGD)
Chain brake engages manually or in case of kickback
Chain speed 2) m/s 21.2
Sprocket pitch inch 3/8
Number of teeth Z 7
Chain type (see the Extract from the spare-parts list)
Pitch / Driving element strength inch 3/8 / .058
Guide bar, length of a cut cm 50 / 60 / 74
Guide-bar type (see the Extract from the spare-parts list)
Weight (fuel tank empty, without chain and guide bar) kg 8.2
1) Figures derived in equal part from idle and full-load operation.
2) At max. power.
3) At the workplace.
4) Uncertainty (K=).
Denomination of components
1Handle
2 Choke
3 Cover for air Þlter/spark plug
4 Switch for use in winter
5 Tubular handle
6Mufßer
7 Fastening nuts
8 Spike bar
9 Chain catcher
10 Adjusting screw for oil pump (bottom side)
11 Sprocket guard
12 IdentiÞcation plate
13 Hand guard
14 Guide bar
15 Chain
16 Hand guard
17 Starter grip
18 Adjusting screws "H-S-L" for carburetor
19 ON/OFF switch
20 Safety locking button
21 Throttle lever
22 Fuel tank cap
23 Fan housing with starting assembly
24 Oil tank cap

10
CAUTION: Before doing any work on the guide bar or
chain,always switch off theengineandpullthe
plug cap off the spark plug (see "Replacing the
spark plug"). Always wear protective gloves!
CAUTION: Startthechainsawonlyafterhavingassembled
it completely and inspected.
PUTTING INTO OPERATION
- Put the chain (D/6) onto the sprocket (D/7) and insert it into
the guide groove of the guide bar. The cutting edges of the
top side of the bar must be oriented in the direction of the
arrow.
- Position the guide bar. Ensure the pivot (B/5, C/5) of the
chain tightener is inserted into the bore (see circle) of the
guide bar.
- Loosen the two fastening nuts (A/1).
- Pull off the sprocket guard (A/2).
Mounting the guide bar and chain
Use the universal wrench delivered with the chain saw for the
following works.
Put the chain saw on a stable surface and carry out the following
steps for mounting the guide bar and chain:
- Lead the chain (E/6) around the sprocket nose (E/8) of the
guide bar.
- Turn the chain tightener (B/4) to the right (clockwise)
until the chain is in gear with the guide groove of the bottom
side of the bar (see circle). Press the guide bar with your
left hand against the casing.
- Turn the chain adjusting screw (B/4) anti-clockwise until
the pivot (B/5) is positioned approx. 2 cm in front of the
left stop.
AB
C D
5
7
5
EF
8
2
14
6
6

11
- Position the sprocket guard (G/2).
Manually tighten the two fastening nuts (G/1).
Tightening the chain
- Slightly lift the end of the guide bar and turn the chain
adjusting screw (H/4) to the right (clockwise) until the
chain rests against the bottom side of the guide bar.
- Continue to lift the guide bar end and Þrmly tighten the
two fastening nuts (G/1) by means of the universal
wrench.
Chain brake
I
Engaging the chain brake (braking)
If the kickback is strong enough the sudden acceleration of the
guide bar combined with the inertia of the hand guard (K/3) will
automatically actuate the chain brake.
When actuating the chain brake manually, press the hand
guard (K/3) with your left hand in the direction of the guide
bar end (arrow 1).
Releasing the chain brake
Pull the hand guard (K/3) in the direction of the tubular handle
(arrow 2) until it will engage noticeably. Now the chain break
is released.
Checking the chain tension
- The tension of the chain is correct if the chain rests against
the bottom side of the guide bar and can still be easily turned
by hand.
- While doing so the chain brake must be released.
- Check the chain tension in short intervalls because new
chains tend to elongate.
- When checking the chain tension the engine must be switch-
ed off.
NOTE:
It is recommended to use 2-3 chains alternatively.
In order to guarantee a uniform wear of the guide bar the bar
should be turned over whenever replacing the chain.
The DCS9010 comes with an inertia chain brake as standard
equipment. If kickback occurs due to contact of the guide-bar
tip with wood (see SAFETY PRECAUTIONS, page 6), the
chain brake will stop the chain through inertia if the kickback
is sufÞciently strong.
The chain will stop within a fraction of a second.
The chain brake is installed to block the saw chain before
starting it and to stop it immediately in case of an emer-
gency.
IMPORTANT: NEVER run the saw with the chain brake acti-
vated (except for testing, see “Testing chain brake”)! Doing so
can very quickly cause extensive engine damage!
ALWAYS release the chain brake
before starting the work!
JK
21
3
H
4
G2
1

12
Fuels / Refuelling
Chain oil
Use an oil with adhesive additive for lubricating the chain and
guide bar. The adhesive additive prevents the oil from being
ßung off the chain too quickly.
We recommend the use of chain oil which is bio-degradable in
order to protect the environment. The use of bio-degradable oil
may even be required by local regulations.
The chain oil BIOTOP sold by MAKITA is made of special
vegetable oils and is 100% bio-degradable. BIOTOP has been
granted the "blue angel" (Blauer Umweltschutz-Engel) for being
particularly environment-friendly (RAL UZ 48).
BIOTOP chain oil is available in the following sizes:
1 lorder number 980 008 610
5 lorder number 980 008 611
Bio-degradable oil is stable only for a limited period of time. It
should be used within 2 years from the date of manufacture
(printed on the container).
Important note on bio-degradable chain oils:
If you are not planning to use the saw again for an extended
period of time, empty the oil tank and put in a small amount of
regular engine oil (SAE 30), and then run the saw for a time.
This is necessary to ßush out all remaining bio-degradable oil
from the oil tank, oil-feed system, chain and guide bar, as many
suchoilstend to leave sticky residuesovertime,whichcancause
damage to the oil pump or other parts. The next time you use
the saw, Þll the tank with BIOTOP chain oil again.
NEVER USE WASTE OIL
Waste oil is very dangerous for the environment.
Waste oil contains high amounts of carcinogenic substances.
Residues in waste oil result in a high degree of wear and tear
at the oil pump and the sawing device.
In case of damage caused by using waste oil or unappropriate
chain oil the product guarantee will be null and void.
Your salesman will inform you about the use of chain oil.
Fuel
CAUTION: This saw is powered by mineral-oil products
(gasolineandoil).Beespeciallycarefulwhenhandlinggasoline.
Avoid all ßame or Þre. Do not smoke (explosion hazard).
Fuel mixture
Thistoolispowered by a high-performance air-cooled two-stroke
engine. It runs on a mixture of gasoline and two-stroke engine
oil.
The engine is designed for unleaded regular gasoline with a
min. octane value of 91 ROZ. In case no such fuel is available,
you can use fuel with a higher octane value. This will not affect
the engine.
In order to obtain an optimum engine output and to protect
your health and the environment use unleaded fuel only.
To lubricate the engine, use a synthetic oil for two-stroke air-
cooled engines (quality grade JASO FC or ISO EGD), which
has to be added to the fuel. The engine has been designed for
use of MAKITA high-performance two-stroke engine oil and a
mixture ratio of only 50:1 to protect the environment. In addi-
tion, a long service life and reliable operation with a minimum
emission of exhaust gases are ensured.
MAKITA high-performance two-stroke engine oil is available in
the following sizes to suit your individual requirements:
1 l order number 980 008 607
100 ml order number 980 008 606
In case MAKITA high-performance two-stroke engine oil is not
available, it is urgently recommended to use a mixture ratio of
50:1 with other two-stroke engine oils, as otherwise optimum
operation of the engine cannot be guaranteed.
Caution: Do not use ready-mixed fuel from petrol
stations.
The correct mixture ratio:
50:1 whenusingMAKITA high-performancetwo-strokeengine
oil, i. e. mix 50 parts gasoline with 1 part oil.
50:1 when using other synthetic two-stroke engine oils
(quality grade JASO FC or ISO EGD), i. e. mix 50 parts
gasoline with 1 part oil.
NOTE:
For preparing the fuel-oil mixture Þrst mix the entire oil quan-
tity with half of the fuel required, then add the remaining fuel.
Thoroughly shake the mixture before Þlling it into the chain
saw tank.
It is not wise to add more engine oil than speciÞed to ensure
safe operation. This will only result in a higher production
of combus-tion residues which will pollute the environ-
ment and clog the exhaust channel in the cylinder as well
as the mufßer. In addition, fuel consumption will rise and
performance will decrease.
C
waste oil
B
The Storage of Fuel
Fuels have a limited storage life. Fuel and fuel mixtures age
throughevaporation, especially athightemperatures.Aged fuel
and fuel mixtures can cause starting problems and damage the
engine.Purchase only that amount of fuel, which will be consu-
med over the next few months. At high temperatures, once fuel
has been mixed it should be used up in 6-8 weeks.
Store fuel only in proper containers, in dry, cool, secure
locations!
+
A
50:1
OIL
50:1
OIL
1000 cm3 (1 litre) 20 cm320 cm3
5000 cm3 (5 litre) 100 cm3 100 cm3
10000 cm3 (10 litre) 200 cm3 200 cm3
50:1

13
The engine must be switched off.
The oil pump can be regulated with the adjusting screw (F/1).
The adjusting screw is mounted on the bottom side of the casing.
The oil pump has been adjusted to a medium feed quantity by
MAKITA.
For changing the feed quantity use the universal wrench and
adjust the adjusting screw (F/1) in the following way:
- turn to the right to reduce the quantity
- turn to the left to increase the quantity.
To guarantee a troublefree operation of the oil pump the oil
guide groove at the crank case (G/2) and the oil inlet bore in
the guide bar (G/3) must be cleaned regularly.
Note:
After the saw has been turned off it is normal for residual chain
oil to drip from the oil feed system, the guide bar and the chain
for a time. This does not constitute a defect!
Place the saw on a suitable surface.
Adjusting the chain lubrication
AVOID SKIN AND EYE CONTACT
D
Mineral oil products as well as oils degrease your skin. If your
skin comes in contact with these substances repeatedly and for
a longer period of time, it will desiccate. Various skin deseases
may result. In addition, allergic reactions are known.
Eyes can be irritated by contact with oil. If oil comes into your
eyes, immediately wash them with clear water.
If your eyes are still irritated, go to see a doctor.
Refuelling
FOLLOW THE SAFETY PRECAUTIONS
Be careful and cautious when handling fuels.
The engine must be switched off.
- Thoroughlycleanthe tanks around thescrewcapstoprevent
dirt from entering the fuel or oil tank.
- Unscrew the cap and Þll in fuel or chain oil until it reaches
the bottom edge of the Þller socket. Be careful when reÞlling.
Do not spill fuel or oil.
- Tightly screw on the cap.
Clean screw cap and tank after refuelling.
Lubricating the chain
In order to ensure sufÞcient lubrication of the chain there must
always be enough oil in the tank. Its contents is sufÞcient for
approx. 1/2 hour of continuous operation.
During this procedure check whether there is enough the chain
oil in the tank and reÞll if necessary. Do this only with the
engine turned off!
chain oil fuel and oil mixture
E
FG3
1
2

14

Starting the engine
D
Checking the chain lubrication
C
Checking the chain brake
Do not work with the chain saw without Þrst checking the
chain brake!
- Start the engine as described (make sure you have a good
footing, and place the chain saw on the ground in such a
way that the guide bar is free of contact).
- Grasp the tubular handle Þrmly with one hand and hold the
grip with the other.
- With the engine running at moderate speed, press the hand
guard (C/6) in the direction of the arrow with the back of your
hand until the chain brake engages. The chain should stop
immediately.
- Immediately release the throttle and release the chain
brake.
IMPORTANT: If the chain does not stop immediately when
you test the chain brake, do NOT use the chain saw. Take
the chain saw to a MAKITA service center.
Never work with the chain saw when a sufÞcient chain lubrica-
tion is not guaranteed. Otherwise the service life of the sawing
device will be reduced. Before starting work check the oil level
in the tank and the oil feeding.
Check the oil feed quantity as described below:
- Start the chain saw.
- Hold the running chain saw approx. 15 cm above a trunk or
the ground (use an appropriate base).
If the lubrication is sufÞcient, you will see a light oil trace becau-
se oil will be centrifuged from the sawing device. Pay attention
to the direction the wind is blowing and avoid unnecessary
exposure to the oil spray!
6
AB
5
4
2
6
1
3
- Move at least 3m away from the place where you fuelled
the saw.
- Ensure to have a safe footing and put the chain saw on the
ßoor such that the sawing device is con in contact with any
object.
- Actuating the chain brake (blocking).
- Hold the tubular handle tightly with one hand and press the
chain saw to the ground.
- Put your tip-toe in the back hand guard.
Cold-starting:
Pullthechoke (B/1) out untilitaudiblyclicks.Thissimultaneously
actuates the half-throttle lock.
Put the short-circuiting switch (B/2) in position "I" (START).
Slowly pull out the starter cable (B/3) until you notice resistance
(the piston is positioned before the top dead centre).
Push the starting valve (B/4) (option).
Nowpull the starter cablewitha fast and forcefulmovement
until you hear the Þrst ignition.
CAUTION: Do not pull out the starter cable more than approx.
50 cm, and lead it back by hand.
Push the starting valve (B/4) (option).
Depress the choke (B/1) and pull the starter cable again.
As soon as the engine is running, grasp the rear handle (this
actuates the grip safety (B/5)) and tap the throttle (B/6). This will
release the half-throttle lock and the engine will run in idle.
CAUTION: As soon as the engine is started it must be put
in idle to prevent the chain brake from being damaged.
Now release the chain brake.
Warm starting:
As described for cold starting, except before starting pull the
choke (B/1) all the way out and back in one time, in order to
activate the half-throttle lock. If the engine doesn’t start after
2 or 3 pulls, repeat the entire starting procedure as described
for cold starting.
Stopping the engine
Put the short-circuiting switch (B/2) in position "O" (STOP).

15
Adjusting the carburetor (only for EU-countries)
S
S
A
CAUTION:
Do not adjust the carburetor until the machine has been
completely assembled and checked! Do not adjust the
carburetor without a tachometer!
Carburetor adjustment is necessary for optimum engine
performance, for safer and more economical operation.
Adjust the carburetor only with the engine warm, a clean
air Þlter, and properly installed cutting tool.
Carburetor adjustment may be done only by a MAKITA
service centre. Improper adjustment can cause damage
to the engine.
In order to comply with new emissions legislation, limits have
been placed on the carburetor adjusting screws (H) and (L).
This limitation (to about 180 degrees) prevents an exces-
sively rich mixture. This in turn ensures compliance with
emissions rules as well as optimum engine performance and
economical fuel consumption.
You will need a tachometer (part No. 950 233 210) for op-
timum adjustment. Exceeding the maximum permissible
speed can lead to overheating and under-lubricating, and
damage to the engine!
Factory setting of adjusting screws (H) and (L): Turned out
almost all the way (counterclockwise).
Use a screwdriver (blade width 4 mm, part No. 944 340 001)
to adjust the screws.
For proper adjustment, proceed as follows:
Checking adjusting screw (H)
Before starting the engine make sure that adjusting screw (H) is
turned out counterclockwise until it reaches a noticeable stop.
The limitations do not prevent excessively lean running!
1. Start engine and let it warm up (3-5 minutes)
2. Set idle
3. Check acceleration
4. Set maximum permissible speed
5. Check idle speed
2. Set idle
Set the idle speed per the technical speciÞcations.
Turning the adjusting screw (S) in (clockwise) increases the
idle speed. Turning it out (counter-clockwise) lowers the idle
speed. The cutting tool must not rotate!
3. Check acceleration
When the throttle is pressed, the engine should go smoothly
from idle to high speed.
Turn adjusting screw (L) out (counterclockwise) in small
increments until acceleration is good.
4. Set maximum permissible speed
Set the maximum speed by minimal adjustments of the
adjusting screw (H) in accordance with the technical speci-
Þcations.Turning the adjusting screw (H)clockwiseincreases
the speed. Never exceed the maximum permissible
speed!
For units with electronic engine speed limitation: No
tachometer is necessary to determine the maximum
permissible speed, since exceeding this speed will
result in clearly audible ignition misses!
5. Check idle speed
Check the idle speed after setting the top speed (the cutting
tool must not rotate!).
Repeat the adjustment procedure starting at Step 2, until the
engine runs with the correct idle speed, good acceleration,
and maximum permissible speed.
B
H
L
S

16
Working in winter
In order to prevent carburetor icing in winter, warm air can be
led from the cylinder to the carburetor.
- Use the universal wrench to turn the button (G/1) completely
to the right.
- Now the carburetor heating is actuated.
If the temperature is above 0oC, the carburetor heating must
be switched off.
Not following this instruction may result in damage at the
cylinder and piston.
A
Carburetor adjustment is necessary for optimum engine
performance,forsafer and more economicaloperation.The
engine should be warm, the air Þlter clean, and the chain
properly tensioned. Have carburetor adjustment done by
an authorised MAKITA service centre.
The carburetor is factory-adjusted for the air pressure at sea
level. At other elevations or under other conditions of weather,
temperature,orhumidity,orwhenbreakinginanewengine,itmay
be necessary to make slight adjustments to the carburetor.
You will need a tachometer (part No. 950 233 210) for opti-
mum adjustment.
Do not go below the speciÞed setting of the main nozzle
(H). Doing so may cause engine damage due to overheating
and insufÞcient lubrication!
Use the supplied carburetor screwdriver for carburetor adjust-
ment. It has a moulded-on projection that aids in adjusting.
Before undertaking the adjustment, run the engine for 3-5 mi-
nutes to warm it up, but not at high speed!
For proper adjustment, proceed as follows:
1. Basic setting (engine off)
Start engine and warm up.
2. Set idle
3. Check acceleration
4. Check top speed
5. Check idle speed
Repeat steps 2-5 until you get the right idle speed, good
acceleration and maximum permissible
1. Basic setting
Carefully turn the adjusting screws for the main nozzle (H)
and idle nozzle (L) clockwise until you feel a stop.
Turn adjusting screws (H) and (L) 1 turn counter-clockwi-
se.
2. Set idle
Set the idle speed per the technical speciÞcations.
Turning the adjusting screw (S) in (clockwise) increases the
idle speed. Turning it out (counter-clockwise) lowers the idle
speed. In no case should the chain move.
3. Check acceleration
When the throttle is pressed, the engine should go smoothly
from idle to high speed. If this is too slow, turn the adjusting
screw (L) in small (max. 1/8turns) increments counter-clo-
ckwise.
Adjusting the carburetor (only for not EU-countries)
G1
4. Check top speed
The basic setting H=1and L=1gives a maximum speed of
about 13,000 rpm. For higher speed (electronically limited
to 13,500 rpm), turn the adjusting screw (H) a maximum
1/8 turn clockwise.The top speed in the governor can be
clearly heard from the ignition misses. Note: Since there is
anelectronic speed governor (limiter) at13,500rpmthat cuts
off the ignition current, the top speed cannot be read from
the tachometer. Important: To prevent engine damage,
never go below setting (H) 7/8 turns.
5. Check idle speed
Check the idle speed after setting the top speed (the chain
must not move).
Repeat the adjustment procedure starting at Step 2, until the
engine runs with the correct idle speed, good acceleration,
and top speed.
B
H
L
S

17
C
D
Files and how to work with them
- Sharpen using a special Þle holder with a saw chain round
Þle. Normal round Þles are not appropriate for this work. For
the order number see accessories.
- File the Þrst cutter half with a 5.5 mm dia. special round
Þle, then switch to a 4.8 mm dia. Þle.
- The Þle should cut only when pushed forwards (arrow). Lift
the Þle when leading it backwards.
- First sharpen the shortest cutter. The length of this cutter is
then the nominal value for all other cutters of the chain.
- Replaced cutters must be exactly adopted to the shape of
the other cutters. This is also true for the depth gauges.
- Always guide the Þle horizontally (10oto the guide bar).
- The sharpening angle of 25omust be equal for all cutters.
Different angles result in a roughly, irregularly running chain,
increase wear and tear and cause chain ruptures.
- The front rake of 60odepends on the cut depth of the round
Þle. If the Þle to be used is guided correctly, the correct front
rake results automatically.
MAINTENANCE
Sharpening the chain
CAUTION: Before doing any work on the guide bar or chain,
always switch off the engine and pull the plug cap off the
spark plug (see "Replacing the spark plug"). Always wear
protective gloves!
Sharpen the chain if
- The sawdust produced when sawing humid wood looks like
wood ßour.
- The chain penetrates the wood only under great pressure.
- The cutting edge is visibly damaged.
- The sawing device is pulled to the left or right when sawing.
This is caused by an unequal sharpening of the chain.
Important: Sharpen regularly, but only slightly.
Generally 2-3 touches are enough.
Have the chain resharpened in a service centre when you
have already sharpened it yourself several times.
Characteristics of a correctly sharpened chain (type
099):
- All cutters must be of the same length (=). Cutters with
different lengths result in a rough running of the chain and
produce cracks in the chain.
- The best cutting results are achieved with a depth limiter
distance of 0.64 mm (.025"). The distance between the
depth limiter and the cutting edge determines the depth of
the cut.
CAUTION:
If the distance is too wide, the risk of kickbacks in-
creases.
=
25°
25°
=0,64 mm
(.025")
A
60°
60°
E
B

18
- After having sharpened the chain, the height of the depth
limiter must be checked by means of a chain gauge. For
the order number see accessories.
- Correct even the smallest projections with a special ßat
Þle (G).
- Round off the front of the depth limiter (H).
- Clean the inside, in particular the brake band area (K/7),
with a brush.
NOTE: Do not clean the brake mechanism, in particular the
spring (K/8), because it could jump out of its guide.
NOTE: Do not remove the foam material (K/9).
- Remount the protective plate and the guide plate.
- After mounting carry out a functional check of the chain
brake (see Checking the chain brake).
NOTE:
The chain brake is a very important safety device and like
any other component subject to normal wear and tear.
It is recommended to have it checked and maintained regu-
larly for your own safety by a MAKITA service centre.
25°
1/5
H
25°
FG
Clean the chain brake band
CAUTION: In any case actuate the chain brake
(blocking) and put on protective gloves. Do not
actuate the chain brake when cleaning.
- The Þle holder makes it easier to guide the Þle, carries mar-
kings for a correct sharpening angle of 25oand limits the cut
depth (4/5 of the Þle diameter). For the order number see
accessories.
- When Þling the markings must be parallel to the chain.
Cleaning the guide bar
CAUTION:
Protective gloves must be put on.
The bearing surfaces of the guide bar must be regularly cleaned
and checked for damage.
- Loosen the fastening nuts (J/1).
- Pull off the sprocket guard (J/2).
- Loosen the screw (J/3) and remove the guide plate (J/4).
- Loosen the four screws (J/5) and carefully remove the
protective plate (J/6).
NOTE: Ensure the pressure spring (K/8) cannot jump
out. Secure the pressure spring in position before
cleaning.
SERVICE
IJ
2
4
653
1
K
7
9
8

19
Replacing the sprocket
CAUTION:
Protective gloves must be put on.
Check the sprocket before mounting a new chain (A).
Worn out sprockets (more than 0,2 mm) (B) may damage the
new chain and must therefore be replaced.
- Loosen the fastening nuts (C/1).
- Pull off the sprocket guard (C/2).
- Take off the sprocket (F/5) from the clutch drum.
- Position the new, slightly oiled sprocket and remount all
parts in the reverse order.
Checking the sprocket
- Use the universal wrench to remove the locking washer
(D/3).
CAUTION:
The locking washer might jump out on removing.
- Remove the thrust washer (D/4) underneath it.
The spark arrester screen should be checked and cleaned
regulary.
- Remove the screw (F/6), deßector plate (F/7) and arrester
screen (F/8).
Caution:Donotusesharpor pointed objects for screen cleaning.
Damaged or misformed screen wires may result.
Replacing/cleaning the
spark arrester screen Checking the mufßer screws
- Regularly check the three fastening screws (G/9) for
tightness.
AB
DE
45
3
F
8
67
C
2
1
G
9

20
Replacing the return spring Replacing the suction head
- Demount the fan housing (J/1).
- Loosen the screw with the star-shaped recess (J/2) on the
pivot.
- Pull off the pivot (J/3).
- Remove the cable drum (J/4).
- Demount the spring cover (J/5) (3 screws).
- Slightly knock the hollow side of the fan housing on wood
while holding it tightly. Thus the old spring will jump out and
release.
- The new spring is delivered in a box, under full tension.
For mounting the whole box is pressed into the fan housing
and the wire ring is stripped off (a spring which has jumped
out is remounted by turning it clockwise into the housing).
- Pull the suction head by means of a bent wire through the
tank opening.
- The felt Þlter (K/1) of the suction head can be clogged.
- It is recommended to replace the suction head once every
three months in order to guarantee an unimpeded fuel
ßow to the carburetor.
- Demount the fan housing (H/1) (4 screws).
- The cable drum must not be demounted.
- Remove the old cable.
- Mount the new cable (ø 4x1000 mm) and tie it up in a simple
knot in the drum, and in a knot with a loop in the starter
grip. The end of the cable must not project the drum.
- Wind the cable around the drum as far as possible. Then
pull the cable with the starter grip approx. 50 cm out of the
drum, hold the drum tightly and wind the cable once again
around the drum.
- Release the drum and let the cable wind up by means of
the spring tension. The starter grip must now stand upright
at the outside of the starter casing.
NOTE:
When the starter cable has been completely pulled out, it
must be possible to turn the cable drum against the spring
tension through 1/4 rotation.
I
Replacing the starter cable
JK
3
1
2
4
5
1
H
1