Makita EBH340R User manual

Backpack Brushcutter
INSTRUCTION MANUAL
Warning
Read this instruction manual carefully before putting the brushcutter into operation and strictly observe the
safety regulations!
Preserve instruction manual carefully!
EBH340R

2
Thank you very much for selecting the MAKITA brushcutter. We
are pleased to be able to you the MAKITA brushcutter which is
the result of a long development programme and many years of
knowledge and experience.
Please read, understand and follow this booklet which refers in
detail to the various points that will demonstrate its outstanding
performance. This will assist you to safely obtain the best possible
result from your MAKITA brushcutter.
Table of Contents Page
Symbols........................................................................................... 2
Safety instructions ........................................................................3-6
Technical data.................................................................................. 7
Designation of parts......................................................................... 8
Assembly of engine and drive shaft............................................9-10
Mounting of handle........................................................................ 11
Mounting of protector..................................................................... 11
Mounting of cutter blade................................................................ 11
Before start of operation...........................................................12-13
Points in operation and how to stop .........................................14-15
Resharpening the cutter blade ...................................................... 15
Servicing instructions ...............................................................16-18
Storage.....................................................................................19-20
Troubleshooting ............................................................................. 21
SYMBOLS
It is very important to undestand the following symbols when reading this instructions manual.
WARNING/DANGER/CAUTION
Read instruction Manual
Forbidden
No Smoking
No open ame
Protective gloves must be worn
Keep the area of operation clear of all
persons and pets
Wear protective helmet, eye and ear
protection
Engine-Manual start
Emergency stop
First Aid
ON/START
OFF/STOP
Flying object hazard
Fuel (Gasoline)
Keep distance
Kickback (for brushcutter only)
Top pemissible tool speed
Recycling
English

3
(3)
SAFETY INSTRUCTIONS
General Instructions
To ensure correct and safe operation, the user must read,–
understand and follow this instruction manual to assure familiarity
with the handling of the brushcutter. Users insufciently informed
will risk danger to themselves as well as others due to improper
handling.
It is recommended only to loan the brushcutter to people who–
have proven to be experienced with brushcutters.
Always hand over the instruction manual.
Use brushcutters with the utmost care and attention.–
First-time users should ask the dealer for basic instructions to–
familiarize oneself with the handling of an engine powered cutter.
Children and young persons aged under 18 years must not be–
allowed to operate the brushcutter. Persons over the age of 16
years may however use the tool for the purpose of being trained
only while under the direct supervision of a qualied trainer.
Use brushcutters with the utmost care and attention.–
Operate the brushcutter only if you are in good physical condition.–
Perform all work conscientiously and carefully. The user has to
accept responsibility for others.
Never use the brushcutter while under the inuence of alcohol or –
drugs.
Do not use the unit when you are tired.–
Save these instructions for future referral.–
Personal protective equipment
The clothing worn should be functional and appropriate, i.e.–
it should be tight-tting but not cause hindrance. Do not wear
jewelry, clothing or long hair which could become entangled with
bushes or shrubs.
In order to avoid head-, eye-, hand- or foot injuries as well–
as to protect your hearing the following protective equipment
and protective clothing must be used during operation of the
brushcutter.
Always wear a helmet when working in the forest. The protective–
helmet (1) is to be checked at regular intervals for damage and
is to be replaced at least every 5 years. Use only approved
protective helmets.
The visor (2) of the helmet (or approved goggles) protects the–
face from ying sticks, stones or other object. During operation
of the brushcutter always wear goggles, or a visor to prevent eye
injuries.
Wear adequate noise protection equipment to avoid hearing–
impairment (ear muffs (3), ear plugs etc.), especially during
extended work periods.
The work overalls (4) protect against ying stones and splinters.–
We strongly recommend that the user wear work overalls.
Special gloves (5) made of thick leather are part of the prescribed–
equipment and must always be worn during operation of the
brushcutter.
When using the brushcutter, always wear sturdy shoes (6) with–
a non-slip sole. This protects against injuries and ensures good
footing.
Starting up the brushcutter
Please make sure that there are no children or other people–
within a working range of 50 ft. or 15 meters, also pay attention to
any animals in the working vicinity.
Before operating, always check that the brushcutter is safe–
for operation:
Check the security of the cutter blade. Be sure the blade
mounting nut is rmly secured. The throttle lever should
be checked for smooth and easy action. Check for proper
functioning of the throttle lever lock. The cutter blade must not
rotate during idling.
Consult idle adjustment instructions on page 15. Check for clean
and dry handles and test the function of the STOP switch.
Keep handles free of oil and fuel.
Before operation, check and follow local; regulations concerning–
sound level and hours of operations.
Only start the brushcutter positioned on the ground.–
Do not start it on the back.–
15 m (50 FT)

4
Start the brushcutter only in accordance with the instructions.
Do not use any other methods for starting the engine!
Use the brushcutter and the tools supplied only for applications–
specied.
Start the brushcutter engine only after the entire tool has been–
assembled. Operation of the tool is permitted only after all the
appropriate accessories are attached!
Before starting, make sure that the cutter blade will not contact–
any objects such as branches, stones, etc.
The engine is to be stopped immediately if there are any engine–
problems.
Should the cutter blade hit stones or any other objects–
immediately stop the engine and inspect the cutter blade.
Inspect the cutter blade at frequent regular intervals for damage–
(detect hairline cracks by means of a tapping-noise test).
A familiar ringing sound should be heard.–
Operate the brushcutter only with the shoulder strap attached. It–
should be properly adjusted before putting the brushcutter into
operation. It is essential to adjust the shoulder strap to the user’s
size to prevent fatigue occurring during use or loss of control of
the tool. Never hold the tool with one hand during use.
During operation always hold the brushcutter with both hands.–
Always ensure a safe, well-balanced footing.
Operate the brushcutter in such a manner as to avoid inhalation–
of the exhaust gases. Never run the engine in enclosed rooms
(risk of suffocation and gas poisoning). Carbon monoxide is an
odorless gas. Always ensure there is adequate ventilation.
Stop the engine when resting and when leaving the brushcutter–
unattended. Place it in a sale location to prevent danger to
others, setting re to combustible materials, or damage to the
machine.
Never lay down the hot brushcutter onto dry grass or onto any–
combustible materials.
The cutter blade must be used with its appropriate guard. Never–
run the tool without this guard!
All protective parts and guards supplied with the machine must–
be used during operation.
Never operate the engine with a faulty exhaust mufer.–
Stop the engine during transport.–
During transport over long distances the tool protection included–
with the equipment must always be used.
Put the brushcutter in upright position and x it during care or –
truck transportation to avoid damage.
When transporting the brushcutter, ensure that the fuel tank is–
completely empty, to avoid fuel leakage.
Refuelling
To reduce the risk of re and burn injury, handle fuel with care it –
is highly ammable. Stop the engine during refuelling, keep well
away from open ame and do not smoke.
Avoid skin contact with petroleum products. Do not inhale fuel–
vapor. Always wear protective gloves during refuelling. Change
and clean protective clothing at regular intervals.
Take care not to spill either fuel or oil. Always wipe unit dry before–
starting engine. Allow wet cloths to dry before disposing in proper,
covered container to prevent spontaneous combustion.
Avoid any fuel contact with your clothing. Change your clothing–
immediately if fuel has spilled on it (danger hazard).
Inspect the fuel cap at regular intervals making sure that stays–
securely fastened.
Carefully tighten the locking screw of the fuel tank. Change–
locations to start the engine (at least 10 ft. or 3 meters away from
the place of refuelling).
Never refuel in closed rooms. Fuel vapors accumulate at ground–
level (risk of explosions).
Only transport and store fuel in approved containers. Make sure–
stored fuel is not accessible to children.
Do not attempt to refuel a hot or a running engine.–
When mixing gasoline with two-stroke engine oil, use only–
gasoline which contains no ethanol or methanol (types of
alcohol). This will help to prevent damage to fuel lines and other
engine parts.
Resting•
Transport•
Refuelling•
Maintenance•
Tool Replacement•
3 m (10 FT)

5
12 2
Method of operation
Use the brushcutter only in good light and visibility. During cold–
seasons beware of slippery or wet areas, ice and snow (risk of
slipping). Always ensure a safe footing.
Do not overreach. Keep proper footing, balance and hand control–
of the unit at all times.
Never cut above waist level.–
Never stand on a ladder while running the brushcutter.–
Never climb up into trees to perform any cutting operation with–
the brushcutter.
Never work on unstable surfaces or steep terrain.–
Remove all objects such as stones, nails, broken glass, wire, etc.–
found within the working areas.
Foreign articles may damage the cutting tool, can cause
dangerous kickbacks, or could be thrown about dangerously.
Before commencing cutting the cutting tool must have reached–
full working speed.
Never operate this tool while it is turned upside-down or when it–
is at an extreme angle.
WARNING! — The cutter area is still dangerous while the–
machine is coasting to a stop.
Kickback
When operating the brushcutter, uncontrolled kickback can occur.–
This particularly is the case when attempting to cut within a blade–
segment between 12 and 2 o’clock as viewed from the operator’s
position.
Never touch this segment of the brushcutter to solid objects, such–
as bushes, stumps, trees, etc., with a diameter greater than 3 cm.
The brushcutter will then be deected at great force and speed –
with the potential risk of serious injuries.
Never operate the brushcutter using the blade segment–
between the 12 and 2 o’clock position.
Kickback prevention
To avoid kickbacks, observe the following:
Operation within the blade segment between 12 and 2 o’clock–
can cause serious potential hazards, especially when using metal
cutting blades.
Use of this brushcutter utilizing blade segment positions from 11
to 12 o’clock and 2 to 5 o’clock can still cause a likely potential for
some kickback.
Cutting operations attempted within the blade segments between–
11 and 12 o’clock, and between 2 and 5 o’clock, should only be
performed by trained and experienced operators, and only at
their own risk. Smooth and easy cutting with almost no kickback
is possible using the blade segment between 8 and 11 o’clock.
Cutting Tools
Use only the correct cutting tool for the specic job in hand.
Cutter blade (Star Blade (4 teeth), Eddy Blade (8 teeth)):
For cutting thick materials, such as weeds, high grass, bushes,
shrubs, underwood, thicket, etc. (max. 2 cm dia. thickness). Perform
this cutting work by swinging the brushcutter evenly in half-circles
from right to left (similar to using a scythe).
Maintenance instructions
The condition of the cutter, in particular of the cutter blade, guard–
and of the shoulder strap must be checked before commencing
work. Particular attention is to be paid to the cutting blades which
must be correctly sharpened.
Turn off the engine and remove spark plug connectors when–
replacing or sharpening cutting blade, and also when cleaning
the cutter or cutting tool.
Caution: Kickback
Diagrammatic gure
Diagrammatic gure

6
Never straighten or weld damaged cutting blades.
Be kind to the environment. Operate the brushcutter with as little–
noise and pollution as possible. In particular check the correct
adjustment of the carburetor.
Clean the brushcutter at regular intervals and check that all–
screws and nuts are securely tightened.
Never service or store the brushcutter in the vicinity of open–
ames, sparks, etc.
Always store the brushcutter in a well-ventilated locked room and–
with an emptied fuel tank.
Observe and follow all relevant accident prevention instructions
issued by the trade associations and by insurance companies.
Do not perform any modications to the brushcutter as this will risk
your safety.
The performance of maintenance or repair work by the user is
limited to those activities s described in this instruction manual. All
other work is to be done by Authorized Service Agents.
Use only genuine spare parts and accessories supplied by MAKITA.
Use of non-approved accessories and tools means increased
risk of accidents and injuries. MAKITA will not accept any liability
for accidents or damage caused by the use of any non-approved
cutting tools attachments or accessories.
First Aid
In case of accident make sure that a well-stocked rst-aid kit is
available in the vicinity of the cutting operations. Immediately
replace any item taken from the rst aid box.
When asking for help, please give the following
information:
Place of accident–
What happened–
Number of injured persons–
Extent of injuries–
Your name–
Packaging
The MAKITA brushcutter is delivered in two protective cardboard
boxes to prevent shipping damage.
Cardboard is a basic raw material and is therefore consequently
reusable or suitable for recycling (waste paper recycling).

7
TECHNICAL DATA
1) This data takes equally into account idling and full speed or wide open throttle operating modes.
Model
EBH340R
Loop handle
Dimensions : length x width x height (without pipe case length) mm 400 x 325 x 395
Mass (without guard and cutting blade) kg 9.8
Volume (fuel tank) L 0.65
Cutting attachments (cutter blade dia.) mm 255
Engine displacement cm333.5
Maximum engine performance kw 1.07 at 7,000 min-1
Engine speed at recommended max. spindle speed min-1 10,000
Maximum spindle speed (corresponding) min-1 7,500
Idling speed min-1 3,000
Clutch engagement speed min-1 4,100
Carburetor (Diaphragm - carburetor) type WALBRO WYL
Ignition system type Solid state ignition
Spark plug type NGK CMR6A
Electrode gap mm 0.7 – 0.8
Fuel Automobile gasoline
Engine oil SAE 10W-30 oil API Classication,
Class SF or higher (4-stroke engine for automobile)
Gear ratio 15/20

8
DESIGNATION OF PARTS
GB DESIGNATION OF PARTS
1 Fuel Tank
2 Rewind Starter
3 Air Cleaner
4 I-O Switch (on/off)
5 Spark Plug
6Exhaust Mufer
7 Handle
8 Control Lever
9 Control Cable
10 Shaft
11 Protector
12 Gear Case/Head Case
13 Cutter Blade
14 Shoulder Strap
15 Fuel Filter Cap
16 Starter Knob
17 Primer Pump
18 Choke Lever
19 Exhaust Pipe
20 Oil Gauge
21 Flexible Pipe
22 Grip

9
(1)
(2)
(3)
(4)
(5) (6)
CAUTION: Before performing any work on the brushcutter,
always switch off the motor and pull the spark plug
connectors off the spark plug. Beware of hot engine
parts and sharp blade edges.
Always wear protective gloves!
CAUTION: Start the brushcutter only after having assembled it
completely.
1. Joiningexiblepipewithengineandpipecaseholder
Insert on end of a exible pipe (1) into a clutch housing (2) on an
engine until it locks with a slight “click” noise.
Insert the other end of the exible pipe into a pipe case (3)
holder of a brushcutter until it locks.
Each end of the exible pipe is interchangeable.
Make sure that a square end of a exible shaft ts into the joint
of a drive shaft.
CAUTION: Ifyouhavedifcultytoinserttheexiblepipe
properly,thesquareendoftheexibleshaftmay
nottthedriveshaftjoint.Donotforcetopushto
avoiddamageontheexibleshaftend.Repeatthe
sameprocedureagainuntilexibleshaftandpipe
tproperly.
2. Mounting of control cable
Remove the air cleaner cover.–
Place the control cable (4) in the adjusting bolt (5), and shift the–
swivel (6) so that the cable will be put in the swivel groove. At this
time, the round-hole side of the swivel will be oriented toward the
inner wire end-metal tting.
Release the swivel, and conrm that the inner wire-end metal –
tting will be placed in the hole.
Mount the air cleaner cover.–
ASSEMBLY OF ENGINE AND DRIVE SHAFT
Round-hole
End tting
Control cable
Swivel
Insert

10
CONNECTION OF SWITCH CORD
Connect the switch cords to the two cords from the engine by–
inserting one into the other.
Fix the cord connector by clamp (7).–
ADJUSTMENT OF CONTROL CABLE
Adjust the control cable by adjusting bolt so that it will have 1 to–
2 mm play when the throttle lever is set to the low-speed position
by carburetor adjusting bolt. (Be careful that the cutter blade will
not turn in idling.)
Make the throttle wire and I-O switch cords go along the exible
pipe and x three point them on clip wire (8) tightly. If you do not x
the throttle wire and I-O switch cords surely, there is fear that they
catch on the branch and so on it is dangerous. (8)
1-2 mm
(7)

11
MOUNTING OF HANDLE
Fix the loop handle to the drive shaft by 2 bolts rmly.–
Do not adjust position of the loop handle too close to the control–
grip. Keep not less than 25 cm distance between the handle and
the grip.
MOUNTING OF PROTECTOR
To meet the applicable safety provisions, only the tool/protector
combinations as indicated in the table must be used. Failure to do
so may result in serious injury or death to user or bystanders.
Be sure to use genuine MAKITA cutter blade.
The cutter blade must be well clean, sharp and free of cracks or–
breakage.
If the cutter blade contacts any hard objects or stones during
operation, stop the engine and check the blade immediately.
Clean and sharpen or replace the cutter blade at least every–
three hours of operation.
The outside diameter of the cutter blade must not exceed–
255 mm (10-1/32”). Never use any blades surpassing 255 mm
(10-1/32”) in outside diameter.
CAUTION: The appropriate guard must always be installed,
for your own safety and in order to comply with
accident-prevention regulations.
Operation of the equipment without the protector
being properly in place must never be attempted.
Fix protector to the drive shaft by 2 bolts rmly.–
Never use a brushcutter without a protector or with a broken
protector.
MOUNTING OF CUTTER BLADE
Turn the machine upside down, and you can replace the cutter
blade easily.
Fit a cutting blade and other parts in the order as in the–
illustration. Thrust a bar or alien wrench into a hole of the gear
case until the cutting blade is locked and will not turn. Tighten a
nut by turning to counter-clockwise with a combination wrench.
(Note that the nut is tightened or loosened in the opposit direction
of a usual nut.)
The nut must be re-tightened every time before use.–
For this brushcutter, we recommend the cutting attachments on–
the right.
Never attempt to cut a tree, a log, wood or other hard materials.–
[Tightening torque: 28 - 48 N•m]
Note: Always wear gloves when handling the cutter blade.
Cutter blade Protector for cutter
blade
to engine
Nut
Nut cover
Blade cap
Blade
Grass cover
Blade holder
Gear case

12
InspectionandRellofEngineOil
Perform the following procedure, with the engine cooled down.–
While keeping the engine level, remove the oil gauge, and conrm that the oil is lled within the upper and lower limit marks.–
When the oil is in short in such a way that the oil gauge touches the oil only by its tip, in particular with the oil gauge remaining inserted in the–
crankcase without screwing-in (Fig. 1), rell new oil near the port (Fig. 2).
For reference, the oil rell time is about 15 h (rell frequency: 15 times).–
If the oil changes in color or mixes with dirt, replace it with new one. (For the interval and method of replacement, refer to P 16)–
Recommended oil: SAE 10W-30 oil of API Classication, Class SF or higher (4-stroke engine for automobile)
Oil volume: Approx. 0.1 L
Note: If the engine is not kept upright, oil may go into around the engine, and may be relled excessively.
If the oil is lled above the limit, the oil may be contaminated or may catch re with white.
Point 1 in Replacement of Oil “Oil Gauge”
Remove dust or dirt near the oil rell port, and detach the oil gauge.–
Keep the detached oil gauge free of sand or dust. Otherwise, any sand or dust adhering to the oil gauge may cause irregular oil circulation–
or wear on the engine parts, which will result in troubles.
As an example to keep the oil gauge clean, it is recommended to insert the oil gauge on its knob side into the engine cover, as shown in–
Fig. 3.
(1) Keep the engine level, and detach the oil gauge.
(2) Fill oil up to the edge of the oil rell port. (Refer to Fig.2 of the preceding page).
Feed oil with the lubricant rell container.
(3) Securely tighten the oil gauge. Insufcient tightening may cause oil leakage.
Point 2 in Replacement of Oil: “If oil spills out”
If oil spills out between the fuel tank and engine main unit, the oil is sucked into through the cooling air intake port, which will contaminate–
the engine. Be sure to wipe out spilt oil before start of operation.
BEFORE START OF OPERATION
Upper limit of oil level
(Lower part of oil rell port
threaded part)
If oil adheres around
this tip rell new oil.
Oil gauge
Fig. 1 Fig. 2 Fig. 3

13
Handling of Fuel
It is necessary to handle fuel with utmost care. Fuel may contain substances similar to solvents. Refuelling must be performed in a sufciently
ventilated room or in the open air. Never inhale fuel vapor, and keep fuel away from you. If you touch fuel repeatedly or for a long time, the
skin becomes dry, which may cause skin disease or allergy. If fuel enters into the eye, clean the eye with fresh water. If your eye remains still
irritated, consult your doctor.
Storage Period of Fuel
Fuel should be used up within a period of 4 weeks, even if it is kept in a special container in a well-ventilated shade.
If a special container is not used or if the container is not covered, fuel may deteriorate in one day.
STORAGE OF MACHINE AND REFILL TANK
Keep the machine and tank at a cool place free from direct sunshine.–
Never keep the fuel in the cabin or trunk.–
Fuel
The engine is a four-stroke engine. Be sure to use an automobile gasoline (regular gasoline or premium gasoline).
Points for Fuel
Never use a gasoline mixture which contains engine oil. Otherwise, it will cause excessive carbon accumulation or mechanical troubles.–
Use of deteriorated oil will cause irregular startup.–
Refuelling
WARNING: INFLAMMABLES STRICTLY PROHIBITED
Gasoline Used: Automobile gasoline (unleaded gasoline)
Loosen the tank cap a little so that there will be no difference in atmospheric–
pressure.
Detach the tank cap, and refuel, discharging air by tilting the fuel tank so that–
the refuel port will be oriented upward. (Never rell fuel full to the oil rell port.)
Wipe well the periphery of the tank cap to prevent foreign matter from entering–
into the fuel tank.
After refuelling, securely tighten the tank cap.–
• If there is any aw or damage on the tank cap, replace it.
• The tank cap is consumable, and therefore should be renewed every two to
three years.
REFUELLING
Fuel tank cap
Fuel upper
limit
Fuel tank

14
(1)
Observe all applicable accident prevention regulations!
STARTING
Move at least 3 m away from the place of refuelling. Place the brushcutter on a clean piece of ground taking care that the cutting tool does not
come into contact with the ground or any other objects.
A: Cold start
1) Set this machine on a at space.
2) Move the throttle lever (1) to the start position (Low speed).
3) Choke lever
Close the choke lever.–
Choke opening:–
Full closing in cold or when the engine is cold.–
Full or half opening in restart just after stop of operation.–
4) Primer pump
Continue to push the primer pump until fuel enters into the primer pump.–
(In general, fuel enters into the primer pump by 7 to 10 pushes.)
If the primer pump is pushed excessively, an excess of gasoline returns to–
the fuel tank.
5) Recoil starter
Pull the start knob gently until it is hard to pull (compression point). Then,–
return the start knob, and pull it strongly.
Never pull the rope to the full. Once the start knob is pulled, never release–
your hand immediately. Hold the start knob until it returns to its original
point.
6) Choke lever
When the engine starts, open the choke lever.–
Open the choke lever progressively while checking the engine operation.–
Be sure to open the choke lever to the full in the end.
In cold or when the engine is cooled down, never open the choke lever–
suddenly. Otherwise, the engine may stop.
7) Warm-up operation
Continue warm-up operation for 2 to 3 minutes.–
POINTS IN OPERATION AND HOW TO STOP
High speed
Low speed
(start position)
Carburetor
Primer Pump
CLOSE
OPEN

15
(1)
(2)
Note: – If the starter handle is pulled repeatedly when the choke lever remains at “CLOSE” position, the engine will not start easily due to
excessive fuel intake.
– In case of excessive fuel intake, remove the spark plug and pull the starter handle slowly to remove excess fuel. Also, dry the electrode
section of the spark plug.
Caution during operation:
If the throttle lever is opened fully in a no-load operation, the engine rotation is increased to 10,000 rpm or more. Never operate the engine at a
higher speed than required and at an approximate speed of 6,000 - 8,500 rpm.
B: Startup after warm-up operation
1) Push the primer pump repeatedly.
2) Keep the throttle lever at the idling position.
3) Pull the recoil starter strongly.
4) If it is difcult to start the engine, open the throttle by about 1/3.
Pay attention to the cutter blade which may rotate.
Attention in Operation
When the engine is operated upside down, white smoke may come out from the mufer.–
STOPPING
1) Reset the throttle lever (1) to the low speed position and slow down the
engine rpm. Then, continue to depress the STOP switch (2) until the engine
stops completely.
2) Be sure to conrm that the cutter blade is completely at a stop, as it may
sometimes turn after the engine stops.
Low speed
When it is necessary to adjust the low-speed rotation (idling), perform it by the carburetor adjusting screw.
ADJUSTMENT OF LOW-SPEED ROTATION (IDLING)
CHECKUP OF LOW-SPEED ROTATION
Set the low-speed rotation to 3,000 min– -1.
If it is necessary to change the rotation speed, regulate the adjusting screw–
(illustrated on the left), with Phillips screwdriver.
Turn the adjusting screw to the right, and the engine rotation will increase.–
Turn the adjusting screw to the left, and the engine rotation will drop.
The carburetor is generally adjusted before shipment. If it is necessary to–
readjust it, please contact Authorized Service Agent.
RESHARPENING THE CUTTER BLADE
CAUTION: The cutter blade mentioned below must only be
resharpened by an authorized facility. Manual
resharpening will result in imbalances of the cutting tool
causing potentially dangerous vibrations and damage to
the equipment.
Cutter blade (Star blade (4 teeth), Eddy blade (8 teeth))–
An expert resharpening and balancing service is provided by
Authorized Service Agents.
Note: To increase the service life of the cutter blade (star blade,
eddy blade) it may be turned over once, until both cutting
edges have become dull. Never continue to use a dull blade
or kickback and serious injury may result.
Adjusting screw
Carburetor

16
SERVICING INSTRUCTIONS
CAUTION: Before doing any work on the brushcutter, always stop the engine and pull the plug cap off the spark plug (see “checking the spark
plug”).
Always wear protective gloves!
To ensure a long service life and to avoid any damage to the equipment, the following servicing operations should be performed at regular
intervals.
Daily checkup and maintenance
Before operation, check the machine for loose screws or missing parts. Pay particular attention to the tightness of the cutter blade or nylon–
cutting head.
Before operation, always check for clogging of the cooling air passage and the cylinder ns.–
Clean them if necessary.
Perform the following work daily after use:–
• Clean the brushcutter externally and inspect for damage.
• Clean the air lter. When working under extremely dusty conditions, clean the lter the severall times a day.
• Check the blade or the nylon cutting head for damage and make sure it is rmly mounted.
• Check that there is sufcient difference between idling and engagement speed to ensure that the cutting tool is at a standstill while the
engine is idling (if necessary reduce idling speed).
If under idling conditions the tool should still continue to run, consult your nearest Authorized Service Agent.
Check the functioning of the I-O switch, the lock-off lever, the control lever, and the lock button.–
REPLACEMENT OF ENGINE OIL
Deteriorated engine oil will shorten the life of the sliding and rotating parts to a great extent. Be sure to check the period and quantity of replacement.
ATTENTION: In general, the engine main unit and engine oil still remain hot just after the engine is stopped. In replacement of oil, conrm
that the engine main unit and engine oil are sufciently cooled down. Otherwise, there may remain a risk of scald.
Note:Iftheoillledabovethelimit,itmaybecontaminatedormaycatchrewithwhitesmoke.
Interval of replacement: Initially, every 20 operating hours, and subsequently every 50 operating hours
Recommended oil: SAE10W-30 oil of API Classication SF Class or higher (4-stroke engine oil for automobile)
In replacement, perform the following procedure.
1) Conrm that the tank cap is tightened securely.
2) Detach the oil gauge.
Keep the oil gauge free from dust or dirt.
3) Place waste or paper near the oil rell port.
4) Detach the oil gauge, and drain oil, tilting the main unit toward the oil rell
port.
Drain oil in a container.
Waste or paper
Fuel tank cap
Oil gauge

17
Pick this part and remove the element (felt).
5) Keep the engine level, and feed new oil up to the edge of the oil rell port.
In rell, use a lubricant rell container.
6) After rell, securely tighten the oil gauge. Insufcient tightening of the oil
gauge will lead to oil leakage.
POINTS ON OIL
Never discard replaced engine oil in garbage, earth or sewage ditch. Disposal of oil is regulated by law. In disposal, always follow the–
relevant laws and regulations. For any points remaining unknown, contact Authorized Service Agent.
Oil will deteriorate even when it is kept unused. Perform inspection and replacement at regular intervals (replace with new oil every–
6 months).
CLEANING OF AIR CLEANER
DANGER: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Daily (every 10 operating hours)
Turn the choke lever to the full close side, and keep the carburetor off from dust–
or dirt.
Remove the air cleaner cover-xing bolts.–
Pull the cover lower side and detach the air cleaner cover.–
If oil adheres to the element (sponge), squeeze it rmly.–
For heavy contamination:–
1) Remove the element (sponge), immerse it in warm water or in water-
diluted neutral detergent, and dry it completely.
2) Clean the element (felt) with gasoline, and dry it completely.
Before attaching the element, be sure to dry it completely. Insufcient drying of –
the element may lead to difcult startup.
Wipe out with waste cloth, oil adhering around the air cleaner cover and plate–
breather.
Immediately after cleaning is nished, attach the cleaner cover and tighten it –
with xing bolts. (In remounting, rst place the upper claw, and then the lower
claw.)
Points in Handling Air Cleaner Element
Clean the element several times a day, if excessive dust adheres to it.–
If operation continues with the element remaining not cleared of oil, oil in the–
air cleaner may fall outside, resulting in oil contamination.
CHECKING THE SPARK PLUG
Only use the supplied universal wrench to remove or to install the spark plug.–
The gap between the two electrodes of the spark plug should be 0.7 - 0.8 mm–
(0.028” - 0.032”). If the gap is too wide or too narrow, adjust it. If the spark plug
is clogged with carton or fouled, clean it thoroubhly or replace it.
CAUTION: Never touch the spark plug connector while the engine is running
(danger of high voltage electric shock).
Plate
Fixing bolt
Air cleaner cover
Element (sponge)
Breather Part
Element (felt)
0.7 mm - 0.8 mm
(0.028” - 0.032”)

18
SUPPLY OF GREASE TO GEAR CASE
Supply grease (Shell Alvania 2 or equivalent) to the gear case through the–
grease hole every 30 hours. (Genuine MAKITA grease may be purchased from
your MAKITA dealer.)
CLEANING OF FUEL FILTER
WARNING: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Monthly (every 50 operating hours)
Suction head in the fuel tank
The fuel lter (1) of the suction head is used to ller the fuel required by the –
carburetor.
A periodical visual inspection of the fuel lter is to be conducted. For that –
purpose open the tank cap, use a wire hook and pull out the suction head
through the tank opening. Filters found to have hardened, been polluted or
clogged up are to be replaced.
Insufcient fuel supply can result in the admissible maximum speed being –
exceeded. It is therefore important to replace the fuel lter at least quarterly to
ensure satisfactory fuel supply to the carburetor.
REPLACEMENT OF FUEL PIPE
CAUTION: INFLAMMABLES STRICTLY PROHIBITED
Interval of Cleaning and Inspection: Daily (every 10 operating hours)
Replacement: Annually (every 200 operating hours)
Replace the fuel pipe every year, regardless of operating frequency. Fuel leakage
may lead to re.
If any leakage is detected during inspection, replace the fuel pipe immediately.
INSPECTION OF BOLTS, NUTS AND SCREWS
Retighten loose bolts, nuts, etc.–
Check for fuel and oil leakage.–
Replace damaged parts with new ones for safety operation.–
CLEANING OF PARTS
Keep the engine always clean.–
Keep the cylinder ns free of dust or dirt. Dust or dirt adhering to the ns will cause seizure.–
REPLACEMENT OF GASKETS AND PACKINGS
In reassembling after the engine is dismounted, be sure to replace the gaskets and packings with new ones.
SUPPLY OF GREASE TO THE FLEXIBLE SHAFT
Pull out the exible shaft from the exible lining for every 20 hours, and –
apply grease on the exible shaft.
The xible shaft may be broken if no grease is applied.–
Grease hole
Fuel lter (1)
Hose clamp
Fuel pipe
Fuel pipe
Any maintenance of adjustment work that is not been included and described in this manual is only to be performed by Authorized Service
Agents.
Flexible shaft
Flexible liner
Apply grease
Gear case

19
STORAGE
WARNING: Whendrainingthefuel,besuretostoptheengineandconrmthattheenginecools
down.
Justafterstoppingtheengine,itmaystillhotwithpossibilityofburns,inammability
andre.
ATTENTION: When the machine is kept out of operation for a long time, drain up all fuel from the fuel
tank and carburetor, and keep it at a dry and clean place.
Fault location
Drain up fuel from the fuel tank and carburetor according to the following procedure:–
1) Remove the fuel tank cap, and drain fuel completely.
If there is any foreign matter remaining in the fuel tank, remove it
completely.
2) Pull out the fuel lter from the rell port using a wire.
3) Push the primer pump until fuel is drained from there, and drain fuel
coming into the fuel tank.
4) Reset the lter to the fuel tank, and securely tighten the fuel tank cap.
5) Then, continue to operate the engine until it stops.
Remove the spark plug, and drip several drops of engine oil through the spark plug–
hole.
Gently pull the starter handle so that engine oil will spread over the engine, and attach–
the spark plug.
Attach the cover to the cutter blade.–
Keep the drained fuel in a special container in a well-ventilated shade.–
Attention after long-time storage
Before startup after long-time shutdown, be sure to replace oil (refer to P 16). Oil will deteriorate while the machine is kept out of–
operation.
Fault System Observation Cause
Engine not starting or with
difculty
Ignition system Ignition spark O.K. Fault in fuel supply or compression system, mechanical
defect
No ignition spark STOP-switch operated, wiring fault or short circuit, spark
plug or connector defective, ignition module faulty
Fuel supply Fuel tank lled Incorrect choke position, carburetor defective, fuel supply
line bent or blocked, fuel dirty
Compression No compression when
pulled over
Cylinder bottom gasket defective, crankshaft seals
damaged, cylinder or piston rings defective or improper
sealing of spark plug
Mechanical fault Starter not engaging Broken starter spring, broken parts inside of the engine
Warm start problems Tank lled ignition spark
existing
Carburetor contaminated, have it cleaned
Engine starts but dies Fuel supply Tank lled Incorrect idling adjustment, carburetor contaminated
Fuel tank vent defective, fuel supply line interrupted,
cable or STOP-switch faulty
Insufcient performance Several systems may
simultaneously be
affected
Engine idling poor Air lter contaminated, carburetor contaminated, mufer
clogged, exhaust duct in the cylinder clogged

20
*1 Perform initial replacement after 20h operation.
*2 For the 200 operating hour inspection, request Authorized Service Agent or a machine shop.
*3 After emptying the fuel tank, continue to run the engine and drain fuel in the carburetor.
Operating time
Item
Before
operation
After
lubrication
Daily
(10h) 30h 50h 200h
Shutdown/
rest
Corres-
ponding P
Engine oil
Inspect/clean 12
Replace *116
Tightening parts
(bolt, nut) Inspect 18
Fuel tank
Clean/inspect —
Drain fuel *319
Throttle lever
Check function 15
Stop switch
Check function 15
Cutting blade Inspect 11
Low-speed rotation Inspect/adjust 15
Air cleaner Clean 17
Ignition plug Inspect 17
Cooling air duct Clean/inspect 19
Fuel pipe
Inspect 18
Replace *2—
Gear-case grease Rell 18
Fuel lter Clean/replace 18
Oil tube Inspect *2—
Clearance between air intake
valve and air discharge valve Adjust *2—
Engine overhaul *2—
Carburetor Drain fuel *319