GC2236
Operator′s manual English
Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
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CONTENTS
Contents
Note the following before
starting:
KEY TO SYMBOLS
Symbols ................................................................
CONTENTS
Please read the operator’s manual carefully.
Contents ...............................................................
Note the following before starting: ........................
INTRODUCTION
WARNING! Long-term exposure to noise
can result in permanent hearing
impairment. So always use approved
hearing protection.
!
!
Dear Customer, ....................................................
WHAT IS WHAT?
5
WARNING! Under no circumstances may
the design of the machine be modified
without the permission of the
manufacturer. Always use genuine
accessories. Non-authorized
modifications and/or accessories can
result in serious personal injury or the
death of the operator or others.
What is what on the brushcutter? .........................
GENERAL SAFETY PRECAUTIONS
Important ..............................................................
Personal protective equipment .............................
Machine′s safety equipment .................................
Cutting equipment ................................................ 10
ASSEMBLY
Fitting the J-handle .............................................. 12
Assembling the cutting equipment ....................... 12
Fitting the guard extension ................................... 13
Fitting a blade guard, grass blade and grass cutter 13
Fitting other guards and cutting attachments ....... 14
FUEL HANDLING
WARNING! A clearing saw, brushcutter
or trimmer can be dangerous if used
incorrectly or carelessly, and can cause
serious or fatal injury to the operator or
others. It is extremely important that you
read and understand the contents of this
operator’s manual.
!
Fuel safety ............................................................ 15
Fuel ...................................................................... 15
Fuelling ................................................................. 16
STARTING AND STOPPING
Check before starting ........................................... 17
Starting and stopping ........................................... 17
WORKING TECHNIQUES
General working instructions ................................ 19
MAINTENANCE
Carburettor ........................................................... 22
Muffler .................................................................. 24
Cooling system ..................................................... 24
Bevel gear ............................................................ 24
Air filter ................................................................. 25
Spark plug ............................................................ 25
Maintenance schedule ......................................... 26
TECHNICAL DATA
Technical data ...................................................... 27
EC-declaration of conformity ................................ 28
English – 3
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INTRODUCTION
Dear Customer,
Congratulations on your choice to buy a Jonsered product!
We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very
long time to come. The purchase of one of our products gives you access to professional help with repairs and service
whenever this may be necessary. If the retailer who sells your machine is not one of our authorised dealers, ask for the
address of your nearest service workshop.
It is our wish that you will be satisfied with your product and that it will be your companion for a long time. Think of this
operator′s manual as a valuable document. By following its′ content (using, service, maintenance etc) the life span and
the second-hand value of the machine can be extended. If you will sell this machine, make sure that the buyer will get
the operator′s manual.
Good luck on using your Jonsered machine!
Jonsered has a policy of continuous product development and therefore reserves the right to modify the design and
appearance of products without prior notice.
4 – English
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WHAT IS WHAT?
32
29
23
23
25
30
26
28
24
31
27
What is what on the brushcutter?
1
2
3
4
5
6
7
8
9
Trimmer head
17 Choke control
Grease filler cap, bevel gear
Bevel gear
18 Air purge
19 Locking nut
Cutting attachment guard
Shaft
20 Support flange
21 Support cup
22 Blade
Handle adjustment
Loop handle
23 Drive disc
Suspension ring
Stop switch
24 Transport guard
25 Spark plug spanner
26 Locking pin
10 Throttle lockout
11 Throttle control
12 Spark plug cap and spark plug
13 Cylinder cover
14 Starter handle
27 Socket spanner
28 Allen key
29 Guard extension
30 Harness
15 Fuel tank
31 Operator′s manual
16 Air filter cover
English – 5
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GENERAL SAFETY PRECAUTIONS
Important
Personal protective equipment
IMPORTANT!
IMPORTANT!
The machine is only designed for trimming grass.
A clearing saw, brushcutter or trimmer can be
dangerous if used incorrectly or carelessly, and can
cause serious or fatal injury to the operator or others. It
is extremely important that you read and understand the
contents of this operator’s manual.
The only accessories you can operate with this engine
unit are the cutting attachments we recommend in the
chapter on Technical data.
Never use the machine if you are tired, if you have drunk
alcohol, or if you are taking medication that could affect
your vision, your judgement or your co-ordination.
You must use approved personal protective equipment
whenever you use the machine. Personal protective
equipment cannot eliminate the risk of injury but it will
reduce the degree of injury if an accident does happen.
Ask your dealer for help in choosing the right equipment.
Wear personal protective equipment. See instructions
under the heading Personal protective equipment.
Never use a machine that has been modified in any way
from its original specification.
WARNING! Listen out for warning signals
or shouts when you are wearing hearing
protection. Always remove your hearing
protection as soon as the engine stops.
Never use a machine that is faulty.Carry out the checks,
maintenance and service instructions described in this
manual. Some maintenance and service measures
must be carried out by trained and qualified specialists.
See instructions under the heading Maintenance.
!
HELMET
All covers, guards and handles must be fitted before
starting. Ensure that the spark plug cap and ignition
lead are undamaged to avoid the risk of electric shock.
A protective helmet where there is a risk of falling objects
The machine operator must ensure that no people or
animals come closer than 15 metres while working.
When several operators are working in the same area
the safety distance should be at least twice the tree
height and no less than 15 metres.
HEARING PROTECTION
Wear hearing protection that provides adequate noise
reduction.
WARNING! The ignition system of this
machine produces an electromagnetic
!
field during operation.This field may
under some circumstances interfere with
pacemakers.To reduce the risk of
serious or fatal injury, we recommend
persons with pacemakers to consult
their physician and the pacemaker
manufacturer before operating this
machine.
EYE PROTECTION
Always wear approved eye protection. If you use a visor
then you must also wear approved protective goggles.
Approved protective goggles must comply with standard
ANSI Z87.1 in the USA or EN 166 in EU countries.
WARNING! Running an engine in a
confined or badly ventilated area can
result in death due to asphyxiation or
carbon monoxide poisoning.
!
GLOVES
Gloves should be worn when necessary, e.g., when fitting
cutting attachments.
WARNING! Never allow children to use or
be in the vicinity of the machine. As the
!
machine is equipped with a spring-
loaded stop switch and can be started by
low speed and force on the starter
handle, even small children under some
circumstances can produce the force
necessary to start the machine.This can
mean a risk of serious personal injury.
Therefore remove the spark plug cap
when the machine is not under close
supervision.
6 – English
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GENERAL SAFETY PRECAUTIONS
BOOTS
control and the throttle lockout both move back to their
original positions. This movement is controlled by two
independent return springs.This arrangement means that
the throttle control is automatically locked at the idle
setting.
Wear boots with steel toe-caps and non-slip sole.
A
CLOTHING
Wear clothes made of a strong fabric and avoid loose
clothing that can catch on twigs and branches. Always
wear heavy, long pants. Do not wear jewellery, shorts
sandals or go barefoot.Secure hair so it is above shoulder
level.
B
FIRST AID KIT
Make sure the throttle control is locked at the idle setting
when the throttle lockout is released.
Always have a first aid kit nearby.
Machine′s safety equipment
This section describes the machine′s safety equipment,
its purpose, and how checks and maintenance should be
carried out to ensure that it operates correctly. See the
”What is what?” section to locate where this equipment is
positioned on your machine.
Press the throttle lockout and make sure it returns to its
original position when you release it.
The life span of the machine can be reduced and the risk
of accidents can increase if machine maintenance is not
carried out correctly and if service and/or repairs are not
carried out professionally. If you need further information
please contact your nearest service workshop.
IMPORTANT! All servicing and repair work on the
machine requires special training.This is especially true
of the machine′s safety equipment. If your machine fails
any of the checks described below you must contact
your service agent. When you buy any of our products
we guarantee the availability of professional repairs and
service. If the retailer who sells your machine is not a
servicing dealer, ask him for the address of your nearest
service agent.
Check that the throttle control and throttle lockout move
freely and that the return springs work properly.
WARNING! Never use a machine with
faulty safety equipment.The machine’s
!
safety equipment must be checked and
maintained as described in this section.
If your machine fails any of these checks
contact your service agent to get it
repaired.
See instructions under the heading Start. Start the
machine and apply full throttle. Release the throttle and
check that the cutting attachment stops and remains at a
standstill.If the cutting attachment rotates with the throttle
in the idle position then the carburettor idle setting must
Throttle lockout
The throttle lockout is designed to prevent accidental
operation of the throttle control. When you press the lock
(A) (i.e.when you grasp the handle) it releases the throttle
control (B). When you release the handle the throttle
English – 7
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GENERAL SAFETY PRECAUTIONS
be checked. See instructions under the heading
Always use the recommended guard for the cutting
Maintenance.
attachment you are using. See chapter on Technical data.
WARNING! Never use a cutting
attachment without an approved guard.
!
See the chapter on Technical data. If an
incorrect or faulty guard is fitted this can
cause serious personal injury.
Vibration damping system
Your machine is equipped with a vibration damping
system that is designed to minimize vibration and make
operation easier.
Stop switch
Use the stop switch to switch off the engine.
Using incorrectly wound cord or a blunt or incorrect
cutting attachment (wrong type or incorrectly filed, see
instructions under the heading Filing the blade) increases
the level of vibration.
Start the engine and make sure the engine stops when
you move the stop switch to the stop setting.
The machine′s vibration damping system reduces the
transfer of vibration between the engine unit/cutting
equipment and the machine′s handle unit.
Cutting attachment guard
Regularly check the vibration damping units for cracks or
deformation.
This guard is intended to prevent loose objects from being
thrown towards the operator. The guard also protects the
operator from accidental contact with the cutting
attachment.
Check that the vibration damping element is undamaged
and securely attached.
WARNING! Overexposure to vibration
can lead to circulatory damage or nerve
!
damage in people who have impaired
circulation. Contact your doctor if you
experience symptoms of overexposure
to vibration. Such symptoms include
numbness, loss of feeling, tingling,
pricking, pain, loss of strength, changes
in skin colour or condition.These
symptoms normally appear in the
fingers, hands or wrists.The risk
increases at low temperatures.
Check that the guard is undamaged and not cracked.
Replace the guard if it has been exposed to impact or is
cracked.
8 – English
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GENERAL SAFETY PRECAUTIONS
Regularly check that the muffler is securely attached to
the machine.
Muffler
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user. A muffler
fitted with a catalytic converter is also designed to reduce
harmful exhaust gases.
If the muffler on your machine is fitted with a spark
arrestor mesh this must be cleaned regularly. A blocked
mesh will cause the engine to overheat and may lead to
serious damage.
In countries that have a warm and dry climate there is a
significant risk of fire.We therefore fit certain mufflers with
a spark arrestor mesh. Check whether the muffler on your
machine is fitted with this kind of mesh.
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
!
remain so for some time after stopping.
This also applies at idle speed. Contact
can result in burns to the skin.
Remember the risk of fire!
WARNING! The inside of the muffler
contain chemicals that may be
!
carcinogenic. Avoid contact with these
elements in the event of a damaged
muffler.
For mufflers it is very important that you follow the
instructions on checking, maintaining and servicing your
machine.
WARNING! Bear in mind that:The
exhaust fumes from the engine are hot
and may contain sparks which can start
a fire. Never start the machine indoors or
near combustible material!
Never use a machine that has a faulty muffler.
!
English – 9
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GENERAL SAFETY PRECAUTIONS
Cutting equipment
Locking nut
This section describes how to choose and maintain your
cutting equipment in order to:
•
•
•
Reduce the risk of blade thrust.
A locking nut is used to secure some types of cutting
attachment.
Obtain maximum cutting performance.
Extend the life of cutting equipment.
IMPORTANT!
Only use cutting attachments with the guards we
recommend! See the chapter on Technical data.
Refer to the instructions for the cutting attachment to
check the correct way to load the cord and the correct
cord diameter.
Keep the teeth of the blade correctly sharpened! Follow
our recommendations. Also refer to the instructions on
the blade packaging.
When fitting, tighten the nut in the opposite direction to the
direction of rotation of the cutting attachment. To remove
it, undo the nut in the same direction as the cutting
attachment rotates. (CAUTION! The nut has a left-hand
thread.) Tighten the nut using the socket spanner.
WARNING! Always stop the engine
before doing any work on the cutting
!
attachment.This continues to rotate even
after the throttle has been released.
Ensure that the cutting attachment has
stopped completely and disconnect the
HT lead from the spark plug before you
start to work on it.
WARNING! Using an incorrect cutting
attachment or an incorrectly sharpened
blade increases the risk of blade thrust.
!
The nylon lining inside the locking nut must not be so worn
that you can turn it by hand. The lining should offer a
resistance of at least 1.5 Nm.The nut should be replaced
after it has been put on approx. 10 times.
Cutting equipment
Grass blades and grass cutters are intended for cutting
coarse grass.
A trimmer head is intended for trimming grass.
10 – English
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GENERAL SAFETY PRECAUTIONS
General rules
Trimmer head
IMPORTANT!
Always ensure the trimmer cord is wound tightly and
evenly around the drum, otherwise the machine will
generate harmful vibration.
Only use cutting attachments with the guards we
recommend! See the chapter on Technical data.
•
Only use the recommended trimmer heads and
trimmer cords. These have been tested by the
manufacturer to suit a particular engine size. This is
especially important when a fully automatic trimmer
head is used. Only use the recommended cutting
attachment. See the chapter on Technical data.
Keep the teeth of the blade correctly sharpened! Follow
our instructions and use the recommended file gauge. An
incorrectly sharpened or damaged blade increases the
risk of accidents.
•
•
Smaller machines generally require small trimmer
heads and vice versa. This is because when clearing
using a cord the engine must throw out the cord
radially from the trimmer head and overcome the
resistance of the grass being cleared.
Check the cutting attachment for damage or cracks. A
damaged cutting attachment should always be replaced.
The length of the cord is also important. A longer cord
requires greater engine power than a shorter cord of
the same diameter.
•
•
Make sure that the cutter on the trimmer guard is
intact.This is used to cut the cord to the correct length.
To increase the life of the cord it can be soaked in
water for a couple of days. This will make the line
tougher so that it lasts longer.
Sharpening grass cutters and grass
blades
•
•
See the cutting attachment packaging for correct
sharpening instructions. Sharpen blades and cutters
using a single-cut flat file.
Sharpen all edges equally to maintain the balance of
the blade.
WARNING! Always discard a blade that is
bent, twisted, cracked, broken or
!
damaged in any other way. Never attempt
to straighten a twisted blade so that it
can be reused. Only use original blades
of the specified type.
English – 11
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ASSEMBLY
Fitting the J-handle
Assembling the cutting
equipment
•
Clip the loop handle onto the shaft. Note that the loop
handle must be fitted between the arrows on the shaft.
WARNING! When fitting the cutting
attachment it is extremely important that
the raised section on the drive disc/
support flange engages correctly in the
centre hole of the cutting attachment. If
the cutting attachment is fitted
!
incorrectly it can result in serious and/or
fatal personal injury.
WARNING! Never use a cutting
attachment without an approved guard.
See the chapter on Technical data. If an
incorrect or faulty guard is fitted this can
cause serious personal injury.
!
•
•
•
Slide the spacer into the slot in the loop handle.
Fit the nut, knob and screw. Do not overtighten.
Attach the J-handle to the loop handle using the three
screws, as shown.
IMPORTANT! If a saw blade or grass blade are to be
used the machine must be equipped with the correct
handlebar, blade guard and harness.
•
Now adjust the trimmer to give a comfortable working
position. Tighten the bolt/knob.
WARNING! Only grass blades/grass
cutters or trimmer heads/plastic blades
!
may be used when the J-handle is fitted.
Saw blades must never be used with the
J-handle.
12 – English
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ASSEMBLY
Fitting the guard extension
Fitting a blade guard, grass blade
and grass cutter
CAUTION! The guard extension shall always be fitted
when using the trimmer head/plastic blades and
combination guard. The guard extension shall always be
removed when using the grass blade and combination
guard.
G
Enter the guard extension guide in the slot of the
combination guard. Then click the guard extension into
position on the guard with the four quick-fasteners.
F
E
D
B
C
A
A
•
Hook the blade guard/combination guard (A) onto the
fitting on the shaft and secure with the bolt.
CAUTION! Ensure that the guard extension is
removed.
Use the recommended blade guard. See the
Technical data section.
The guard extension is removed easily using the spark
plug spanner, see illustration.
•
•
Fit the drive disc (B) on the output shaft.
Turn the blade shaft until one of the holes in the drive
disc aligns with the corresponding hole in the gear
housing.
•
•
Insert the locking pin (C) in the hole to lock the shaft.
Place the blade (D), support cup (E) and support
flange (F) on the output shaft.
•
Fit the nut (G). The nut must be tightened to a torque
of 35-50 Nm (3.5-5 kpm). Use the socket spanner in
the tool kit. Hold the shaft of the spanner as close to
the blade guard as possible. To tighten the nut, turn
the spanner in the opposite direction to the direction
of rotation (Caution! left-hand thread).
English – 13
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ASSEMBLY
Fitting other guards and cutting
attachments
•
Fit the trimmer guard/combination guard (A) intended
for use with the trimmer head/plastic blades.
CAUTION! Ensure that the guard extension is fitted.
Hang the trimmer guard/combination guard (A) on the
two hooks on the plate holder (M). Bend the guard
around the shaft and tighten it with the bolt (L) on the
opposite side of the shaft. Use the locking pin (C).
Place the locking pin in the groove on the screw head
and tighten. See diagram.
L
M
C
A
•
Fit the drive disc (B) on the output shaft.
H
A
B
M
L
•
Turn the blade shaft until one of the holes in the drive
disc aligns with the corresponding hole in the gear
housing.
•
•
Insert the locking pin (C) in the hole to lock the shaft.
Screw on the trimmer head/plastic blades (H) in the
opposite direction to the direction of rotation.
•
To dismantle, follow the instructions in the reverse
order.
14 – English
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FUEL HANDLING
Petrol
Fuel safety
Never start the machine:
1
2
If you have spilt fuel on it. Wipe off the spillage and
allow remaining fuel to evaporate.
CAUTION! Always use a quality petrol/oil mixture at least
90 octane (RON). If your machine is equipped with a
catalytic converter (see chapter onTechnical data) always
use a good quality unleaded petrol/oil mixture. Leaded
petrol will destroy the catalytic converter.
If you have spilt fuel on yourself or your clothes,
change your clothes.Wash any part of your body that
has come in contact with fuel. Use soap and water.
3
If the machine is leaking fuel. Check regularly for
leaks from the fuel cap and fuel lines.
Use low-emission petrol, also known as alkylate petrol, if
it is available.
Transport and storage
•
Store and transport the machine and fuel so that there
is no risk of any leakage or fumes coming into contact
with sparks or naked flames, for example, from
electrical machinery, electric motors, electrical relays/
switches or boilers.
•
•
When storing and transporting fuel always use
approved containers intended for this purpose.
•
•
The lowest octane recommended is 90 (RON). If you
run the engine on a lower octane grade than 90 so-
called knocking can occur. This gives rise to a high
engine temperature, which can result in serious
engine damage.
When storing the machine for long periods the fuel
tank must be emptied. Contact your local petrol
station to find out where to dispose of excess fuel.
•
•
Ensure the machine is cleaned and that a complete
service is carried out before long-term storage.
When working at continuous high revs a higher octane
rating is recommended.
The transport guard must always be fitted to the
cutting attachment when the machine is being
transported or in storage.
Two-stroke oil
•
In order to prevent unintentional starting of the engine,
the spark plug cap must always be removed during
long-term storage, if the machine is not under close
supervision and when performing all service
measures.
•
For best results and performance use JONSERED
two-stroke engine oil, which is specially formulated for
our air-cooled two-stroke engines.
•
Never use two-stroke oil intended for water-cooled
engines, sometimes referred to as outboard oil (rated
TCW).
WARNING!Take care when handling fuel.
Bear in mind the risk of fire, explosion
and inhaling fumes.
•
•
Never use oil intended for four-stroke engines.
!
A poor oil quality and/or too high oil/fuel ratio may
jeopardise function and decrease the life time of
catalytic converters.
Fuel
•
Mixing ratio
CAUTION! The machine is equipped with a two-stroke
engine and must always been run using a mixture of
petrol and two-stroke engine oil. It is important to
accurately measure the amount of oil to be mixed to
ensure that the correct mixture is obtained. When mixing
small amounts of fuel, even small inaccuracies can
drastically affect the ratio of the mixture.
1:50 (2%) with JONSERED two-stroke oil.
1:33 (3%) with oils class JASO FB or ISO EGB
formulated for air-cooled, two-stroke engines.
Two-stroke oil, litre
Petrol, litre
2% (1:50)
0,10
3% (1:33)
0,15
WARNING! Fuel and fuel fumes are
5
highly inflammable and can cause
!
10
15
20
0,20
0,30
serious injury when inhaled or allowed to
come in contact with the skin. For this
reason observe caution when handling
fuel and make sure there is adequate
ventilation.
0,30
0,45
0,40
0,60
English – 15
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FUEL HANDLING
Fuelling
Mixing
•
Always mix the petrol and oil in a clean container
intended for fuel.
•
Always start by filling half the amount of the petrol to
be used. Then add the entire amount of oil. Mix
(shake) the fuel mixture. Add the remaining amount of
petrol.
WARNING! Taking the following
precautions, will lessen the risk of fire:
!
•
Mix (shake) the fuel mixture thoroughly before filling
the machine’s fuel tank.
Do not smoke or place hot objects near
fuel.
Always shut off the engine before
refuelling.
Always stop the engine and let it cool for
a few minutes before refuelling.
When refuelling, open the fuel cap slowly
so that any excess pressure is released
gently.
Tighten the fuel cap carefully after
refuelling.
Always move the machine away from the
refuelling area before starting.
•
•
Do not mix more than one month’s supply of fuel at a
time.
•
•
Always use a fuel container with an anti-spill valve.
If the machine is not used for some time the fuel tank
should be emptied and cleaned.
Clean the area around the fuel cap. Contamination in
the tank can cause operating problems.
•
Ensure that the fuel is well mixed by shaking the
container before filling the tank.
WARNING! The catalytic converter
muffler gets very hot during and after
!
use.This also applies during idling. Be
aware of the fire hazard, especially when
working near flammable substances and/
or vapours.
16 – English
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STARTING AND STOPPING
trimmer guard if they have been exposed to impact or
are cracked.
Check before starting
•
Check the blade to ensure that no cracks have formed
at the bottom of the teeth or by the centre hole. The
most common reason why cracks are formed is that
sharp corners have been formed at the bottom of the
teeth while sharpening or that the blade has been
used with dull teeth. Discard a blade if cracks are
found.
•
•
Never use the machine without a guard nor with a
defective guard.
All covers must be correctly fitted and undamaged
before you start the machine.
Starting and stopping
•
Check that the support flange is not cracked due to
fatigue or due to being tightened too much. Discard
the support flange if it is cracked.
WARNING! The complete clutch cover
and shaft must be fitted before the
machine is started, otherwise the clutch
can come loose and cause personal
injury.
!
•
•
Ensure the locking nut has not lost its captive force.
The nut lock should have a locking force of at least 1.5
Nm.The tightening torque of the locking nut should be
35-50 Nm.
Always move the machine away from the
refuelling area before starting. Place the
machine on a flat surface. Ensure the
cutting attachment cannot come into
contact with any object.
Make sure no unauthorised persons are
in the working area, otherwise there is a
risk of serious personal injury.The safety
distance is 15 metres.
Check that the blade guard is not damaged or
cracked. Replace the blade guard if it is exposed to
impact or is cracked.
Starting
Primer bulb: Press the air purge repeatedly until fuel
begins to fill the bulb. The bulb need not be completely
filled.
•
Check that the trimmer head and trimmer guard are
not damaged or cracked.Replace the trimmer head or
English – 17
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STARTING AND STOPPING
Choke: Set the choke control in the choke position.
Stopping
Stop the engine by switching off the ignition.
WARNING! When the engine is started
with the choke in either the choke or
start throttle positions the cutting
attachment will start to rotate
immediately.
!
CAUTION! The stop switch automatically returns to the
start position. In order to prevent unintentional starting,
the spark plug cap must be removed from the spark plug
when assembling, checking and/or performing
maintenance.
Hold the body of the machine on the ground using your
left hand (CAUTION! Not with your foot!). Grip the starter
handle, slowly pull out the cord with your right hand until
you feel some resistance (the starter pawls grip), now
quickly and powerfully pull the cord. Never twist the
starter cord around your hand.
Repeat pulling the cord until the engine starts. When the
engine starts. return choke control to run position and
apply full throttle; the throttle will automatically disengage
from the start setting.
CAUTION! Do not pull the starter cord all the way out and
do not let go of the starter handle when the cord is fully
extended. This can damage the machine.
CAUTION! Do not put any part of your body in marked
area. Contact can result in burns to the skin, or electrical
shock if the spark plug cap has been damaged. Always
use gloves. Do not use a machine with damaged spark
plug cap.
18 – English
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WORKING TECHNIQUES
6
Always hold the machine with both hands. Hold the
machine on the right side of your body.
General working instructions
IMPORTANT!
This section describes the basic safety precautions for
working with clearing saws and trimmers.
If you encounter a situation where you are uncertain
how to proceed you should ask an expert. Contact your
dealer or your service workshop.
Avoid all usage which you consider to be beyond your
capability.
You must understand the difference between forestry
clearing, grass clearing and grass trimming before use.
Basic safety rules
7
8
Keep the cutting attachment below waist level.
1
•
Look around you:
Switch off the engine before moving to another area.
Fit the transport guard before carrying or transporting
the equipment any distance.
To ensure that people, animals or other things cannot
affect your control of the machine.
•
To ensure that people, animals, etc., do not come into
contact with the cutting attachment or loose objects
that are thrown out by the cutting attachment.
9
Never put the machine down with the engine running
unless you have it in clear sight.
•
CAUTION! Do not use the machine unless you are
able to call for help in the event of an accident.
WARNING! Neither the operator of the
machine nor anyone else may attempt to
remove the cut material while the engine
is running or the cutting equipment is
rotating, as this can result in serious
injury.
!
2
Inspect the working area. Remove all loose objects,
such as stones, broken glass, nails, steel wire, string,
etc. that could be thrown out or become wrapped
around the cutting attachment.
Stop the engine and cutting equipment
before you remove material that has
wound around the blade shaft as
otherwise there is a risk of injury.The
bevel gear can get hot during use and
may remain so for a while afterwards.You
could get burnt if you touch it.
3
4
Do not use the machine in bad weather, such as
dense fog, heavy rain, strong wind, intense cold, etc.
Working in bad weather is tiring and often brings
added risks, such as icy ground, unpredictable felling
direction, etc.
Make sure you can move and stand safely. Check the
area around you for possible obstacles (roots, rocks,
branches, ditches, etc.) in case you have to move
suddenly. Take great care when working on sloping
ground.
WARNING! Watch out for thrown objects.
Always wear approved eye protection.
Never lean over the cutting attachment
guard. Stones, rubbish, etc. can be
thrown up into the eyes causing
blindness or serious injury.
!
Keep unauthorised persons at a
distance. Children, animals, onlookers
and helpers should be kept outside the
safety zone of 15 m. Stop the machine
immediately if anyone approaches. Never
swing the machine around without first
checking behind you to make sure no-
one is within the safety zone.
5
Keep a good balance and a firm foothold.
English – 19
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WORKING TECHNIQUES
•
Let the support cup rest lightly against the ground. It
is used to protect the blade from hitting the ground.
Basic working techniques
Always slow the engine to idle speed after each working
operation. Long periods at full throttle without any load on
the engine can lead to serious engine damage.
•
Reduce the risk of material wrapping around the blade
by following these instructions:
1 Always work at full throttle.
WARNING! Sometimes branches or
grass get caught between the guard and
cutting attachment. Always stop the
engine before cleaning.
2 Avoid the previously cut material during the return
stroke.
!
•
Stop the engine, unclip the harness and place the
machine on the ground before you start to collect the
cut material.
WARNING! Machines fitted with saw
blades or grass blades can be thrown
Grass trimming with a trimmer head
!
violently to the side when the blade
comes into contact with a fixed object.
This is called blade thrust. A blade thrust
can be violent enough to cause the
machine and/or operator to be propelled
in any direction, and possibly lose
Trimming
•
Hold the trimmer head just above the ground at an
angle. It is the end of the cord that does the work. Let
the cord work at its own pace. Never press the cord
into the area to be cut.
control of the machine. Blade thrust can
occur without warning if the machine
snags, stalls or binds. Blade thrust is
more likely to occur in areas where it is
difficult to see the material being cut.
Avoid cutting with the area of the blade
between the 12 o'clock and 3 o'clock
positions. Because of the speed of
rotation of the blade, blade thrust can
occur if you attempt to cut thick stems
with this area of the blade.
•
•
The cord can easily remove grass and weeds up
against walls, fences, trees and borders, however it
can also damage sensitive bark on trees and bushes,
and damage fence posts.
Grass clearing using a grass blade
Reduce the risk of damaging plants by shortening the
cord to 10-12 cm and reducing the engine speed.
Clearing
•
•
•
Grass blades and grass cutters must not be used on
woody stems.
•
The clearing technique removes all unwanted
vegetation. Keep the trimmer head just above the
ground and tilt it. Let the end of the cord strike the
ground around trees, posts, statues and the like.
CAUTION! This technique increases the wear on the
cord.
A grass blade is used for all types of tall or coarse
grass.
The grass is cut down with a sideways, swinging
movement, where the movement from right-to-left is
the clearing stroke and the movement from left-to-
right is the return stroke. Let the left-hand side of the
blade (between 8 and 12 o’clock) do the cutting.
•
•
The cord wears quicker and must be fed forward more
often when working against stones, brick, concrete,
metal fences, etc., than when coming into contact with
trees and wooden fences.
•
•
If the blade is angled to the left when clearing grass,
the grass will collect in a line, which makes it easier to
collect, e.g. by raking.
When trimming and clearing you should use less than
full throttle so that the cord lasts longer and to reduce
the wear on the trimmer head.
Try to work rhythmically. Stand firmly with your feet
apart. Move forward after the return stroke and stand
firmly again.
20 – English
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WORKING TECHNIQUES
Cutting
•
The trimmer is ideal for cutting grass that is difficult to
reach using a normal lawn mower. Keep the cord
parallel to the ground when cutting.Avoid pressing the
trimmer head against the ground as this can ruin the
lawn and damage the tool.
•
Do not allow the trimmer head to constantly come into
contact with the ground during normal cutting.
Constant contact of this type can cause damage and
wear to the trimmer head.
Sweeping
• The fan effect of the rotating cord can be used for
quick and easy clearing up. Hold the cord parallel to
and above the area to be swept and move the tool to
and fro.
•
When cutting and sweeping you should use full
throttle to obtain the best results.
English – 21
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MAINTENANCE
Basic setting
Carburettor
•
The basic carburettor settings are adjusted during
testing at the factory. The basic setting is richer than
the optimal setting and should be maintained for the
first few hours the machine is in use. The carburettor
should then be finely adjusted. Fine adjustment
should be carried out by a skilled technician.
Your Jonsered product has been designed and
manufactured to specifications that reduce harmful
exhaust fumes.The engine will be run in after it has used
8-10 tanks of fuel.To ensure that the engine runs at peak
performance and produces as little harmful exhaust
fumes as possible after the running-in period, ask your
dealer/service workshop (which has a rev counter for this
purpose) to adjust your carburettor.
CAUTION! If the cutting attachment rotates when the
engine is idling the idle adjustment screw T should be
turned anti-clockwise until the cutting attachment stops.
WARNING! The complete clutch cover
and shaft must be fitted before the
machine is started, otherwise the clutch
can come loose and cause personal
injury.
Rec. idle speed: See the Technical data section.
!
Recommended max. speed: See the Technical data
section.
WARNING! If the idle speed cannot be
adjusted so that the cutting attachment
!
Function
stops, contact your dealer/service
workshop. Do not use the machine until
it has been correctly adjusted or
repaired.
•
The carburettor governs the engine’s speed via the
throttle control. Air and fuel are mixed in the
carburettor.The air/fuel mixture is adjustable. Correct
adjustment is essential to get the best performance
from the machine.
Fine adjustment
•
When the machine has been ”run-in” the carburettor
should be finely adjusted.The fine adjustment should
be carried out by a qualified person. First adjust the L-
jet, then the idling screw T and then the H-jet.
•
•
Adjusting the carburettor means that the engine is
adapted to local operating conditions, e.g. climate,
altitude, petrol and the type of 2-stroke oil.
Conditions
The carburettor has three adjustment controls:
L = Low speed jet
•
Before any adjustments are made, make sure that the
air filter is clean and the air filter cover is fitted. If you
adjust the carburettor when the air filter is dirty it will
result in a leaner mixture when the filter is finally
cleaned. This can lead to serious engine damage.
H = High speed jet
T = Idle adjustment screw
•
Carefully turn both jets, L and H, so that they are
midway between fully screwed in and fully screwed
out.
L
H
•
•
Do not attempt to adjust the L and H jets beyond either
stop as this could cause damage.
Now start the machine according to the starting
instructions and let it warm up for 10 minutes.
T
CAUTION! If the cutting attachment rotates when the
engine is idling the idle adjustment screw T should be
turned anti-clockwise until the cutting attachment
stops.
•
•
The L and H-jets are used to adjust the supply of fuel
to match the rate that air is admitted, which is
controlled with the throttle. If they are screwed
clockwise the air/fuel ratio becomes leaner (less fuel)
and if they are turned anti-clockwise the ratio
becomes richer (more fuel). A lean mixture gives a
higher engine speed and a rich mixture gives a lower
engine speed.
The T-screw regulates the throttle setting at idle
speed. If the T-screw is turned clockwise this gives a
higher idle speed; turning it anti-clockwise gives a
lower idle speed.
22 – English
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MAINTENANCE
Low speed jet L
High speed jet H
Try to find the highest idle speed by turning the low speed
jet L clockwise then anti-clockwise. When the highest
speed has been found, turn the low speed jet L 1/4 turn
anti-clockwise.
The high speed jet H affects the engine power, speed,
temperature and fuel consumption. If the high speed jet H
is set too lean (screwed in too far) the engine speed will
be too high and cause engine damage. Do not let the
engine run at full speed for more than 10 seconds.
L
H
H
L
H
L
T
Note that the engine should be loaded when you adjust
the high speed jet H.You should therefore fit the trimmer
head T35 (2.7 mm cord) before adjusting the high speed
jet.The cord length should be standard, i.e. to the knife on
the trimmer guard.
CAUTION! If the cutting attachment rotates when the
engine is idling the idle adjustment screw T should be
turned anti-clockwise until the cutting attachment stops.
Fine adjustment of the idle speedT
Apply full throttle and turn the high speed jet H very slowly
clockwise until the engine slows down.Then turn the high
speed jet H very slowly anticlockwise until the engine
starts to run unevenly. Now turn the high speed jet H
slowly clockwise a little way until the engine runs
smoothly.
Adjust the idle speed using the idle adjustment screw T, if
it is necessary to readjust. First turn the idle adjustment
screw T clockwise until the cutting attachment starts to
rotate.Then turn the screw anticlockwise until the cutting
attachment stops. The idle speed is correctly adjusted
when the engine will run smoothly in every position. The
idle speed should also be well below the speed at which
the cutting attachment starts to rotate.
T
H
L
T
H
CAUTION! For optimum adjustment of the carburettor,
contact a qualified dealer/service workshop that has a
revolution counter at their disposal.
Correctly adjusted carburettor
WARNING! If the idle speed cannot be
When the carburettor is correctly adjusted the machine
will accelerate without hesitation and burble a little at
maximum speed. It is also important that the cutting
attachment does not rotate at idle. If the low speed jet L is
set too lean it may cause starting difficulties and poor
acceleration.
adjusted so that the cutting attachment
!
stops, contact your dealer/service
workshop. Do not use the machine until
it has been correctly adjusted or
repaired.
If the high speed jet H is set too lean it will result in less
power, less performance, poor acceleration and/or
damage to the engine.
If both the L and H jets are set too rich it will results in
acceleration problems or too low a working speed.
English – 23
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MAINTENANCE
Muffler
Cooling system
CAUTION! Some mufflers are fitted with a catalytic
converter. See chapter on Technical data to see whether
your machine is fitted with a catalytic converter.
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The muffler is designed to reduce the noise level and to
direct the exhaust gases away from the operator. The
exhaust gases are hot and can contain sparks, which may
cause fire if directed against dry and combustible
material.
3
2
H
L
T
1
The cooling system consists of:
1
2
3
Air intake on the starter.
Some mufflers are equipped with a special spark arrestor
mesh. If your machine has this type of muffler, you should
clean the mesh at least once a week. This is best done
with a wire brush. On mufflers without a catalytic
converter the mesh should be cleaned weekly, or
replaced if necessary. On mufflers fitted with a catalytic
converter the mesh should be checked, and if necessary
cleaned, monthly. If the mesh is damaged it should be
replaced. If the mesh is frequently blocked, this can be a
sign that the performance of the catalytic converter is
impaired. Contact your dealer to inspect the muffler. A
blocked mesh will cause the machine to overheat and
result in damage to the cylinder and piston.
Cooling fins on the cylinder.
Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
Bevel gear
The bevel gear is filled with the right amount of grease at
the factory. However, before using the machine you
should check that the bevel gear is filled 3/4 full with
grease. Use JONSERED special grease.
CAUTION! Never use a machine with a defective muffler.
The grease in the bevel gear does not normally need to
be changed except if repairs are carried out.
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
!
remain so for some time after stopping.
This also applies at idle speed. Contact
can result in burns to the skin.
Remember the risk of fire!
24 – English
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MAINTENANCE
Air filter
Spark plug
The air filter must be regularly cleaned to remove dust
and dirt in order to avoid:
The spark plug condition is influenced by:
•
•
Incorrect carburettor adjustment.
•
•
•
•
•
Carburettor malfunctions
Starting problems
An incorrect fuel mixture (too much or incorrect type
of oil).
Loss of engine power
•
A dirty air filter.
Unnecessary wear to engine parts.
Excessive fuel consumption.
These factors cause deposits on the spark plug
electrodes, which may result in operating problems and
starting difficulties.
If the machine is low on power, difficult to start or runs
poorly at idle speed: always check the spark plug first
before taking any further action. If the spark plug is dirty,
clean it and check that the electrode gap is 0.5 mm. The
spark plug should be replaced after about a month in
operation or earlier if necessary.
Clean the filter every 25 hours, or more regularly if
conditions are exceptionally dusty.
Cleaning the air filter
Remove the air filter cover and take out the filter. Wash it
clean in warm, soapy water. Ensure that the filter is dry
before refitting it.
CAUTION! Always use the recommended spark plug
type! Use of the wrong spark plug can damage the piston/
cylinder. Check that the spark plug is fitted with a
suppressor.
An air filter that has been in use for a long time cannot be
cleaned completely.The filter must therefore be replaced
with a new one at regular intervals. A damaged air filter
must always be replaced.
If the machine is used in dusty conditions the air filter
should be soaked in oil. See instructions under the
heading Oiling the air filter.
Oiling the air filter
Always use special filter oil. Filter oil contains a solvent to
make it spread evenly through the filter.You should
therefore avoid skin contact.
Put the filter in a plastic bag and pour the filter oil over it.
Knead the plastic bag to distribute the oil. Squeeze the
excess oil out of the filter inside the plastic bag and pour
off the excess before fitting the filter to the machine.Never
use common engine oil.This would drain through the filter
quite quickly and collect in the bottom.
English – 25
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MAINTENANCE
Maintenance schedule
The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the
Maintenance section. The user must only carry out the maintenance and service work described in this Operator’s
Manual. More extensive work must be carried out by an authorised service workshop.
Daily
maintenance
Weekly
maintenance
Monthly
maintenance
Maintenance
Clean the outside of the machine.
X
X
X
Check that the harness is not damaged.
Check that the suspension ring is not damaged.
Make sure the throttle trigger lock and the throttle function
correctly from a safety point of view.
X
Check that the stop switch works correctly.
Check that the cutting attachment does not rotate at idle.
Clean the air filter. Replace if necessary.
X
X
X
Check that the guard is undamaged and not cracked. Replace
the guard if it has been exposed to impact or is cracked.
X
X
X
Check that the blade is correctly centred, is sharp, and is not
cracked. An off-centre blade will cause vibration that could result
in damage to the machine.
Check that the trimmer head is undamaged and not cracked.
Replace the trimmer head if necessary.
Check that the locking nut of the cutting equipment is tighten
correctly.
X
X
X
Check that nuts and screws are tight.
Check that there are no fuel leaks from the engine, tank or fuel
lines.
Check that the transport guard for the blade is intact and that it
can be secured correctly.
X
Check the starter and starter cord.
X
X
Check that the vibration damping elements are not damaged.
Clean the outside of the spark plug. Remove it and check the
electrode gap. Adjust the gap to 0.5 mm or replace the spark
plug. Check that the spark plug is fitted with a suppressor.
X
Clean the machine’s cooling system.
X
X
X
X
Clean or replace the spark arrestor mesh on the muffler (only
applies to mufflers without a catalytic converter).
Clean the outside of the carburettor and the space around it.
Check that the bevel gear is filled three-quarters full with
lubricant. Fill if necessary using special grease.
Check the fuel filter from contamination and the fuel hose from
cracks or other defects. Replace if necessary.
X
X
X
Check all cables and connections.
Check the clutch, clutch springs and the clutch drum for wear.
Replace if necessary by an autorized service workshop.
Replace the spark plug. Check that the spark plug is fitted with a
suppressor.
X
X
Check and clean the spark arrestor mesh on the muffler (only
applies to mufflers fitted with a catalytic converter).
26 – English
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TECHNICAL DATA
Technical data
Technical data
GC 2236
Engine
Cylinder displacement, cm3
34,6
Cylinder bore, mm
38,0
Stroke, mm
30,5
Idle speed, rpm
2900
11500
8920
Recommended max. fast idle speed, rpm
Speed of output shaft, rpm
Max. engine output, acc. to ISO 8893, kW/ rpm
Catalytic converter muffler
Speed-regulated ignition system
Ignition system
1,6/8400
No
Yes
Manufacturer/type of ignition system
Spark plug
Walbro MB
Champion RCJ 6Y
0,5
Electrode gap, mm
Fuel and lubrication system
Manufacturer/type of carburettor
Fuel tank capacity, litre
Zama C1Q
0,6
Weight
Weight without fuel, cutting attachment and guard, kg
Noise emissions
5,9
(see note 1)
Sound power level, measured dB(A)
Sound power level, guaranteed LWA dB(A)
Noise levels
113
116
(see note 2)
Equivalent sound pressure level at the operator's ear,
measured according to EN ISO 22868, dB(A), min./max.:
97/98
Vibration levels
Vibration levels at handles, measured according to
EN ISO 22867, m/s2
At idle, left/right handles, min.:
1,3/1,0
1,8/1,4
3,5/5,2
4,8/6,2
At idle, left/right handles, max.:
At max. speed, left/right handles, min.:
At max. speed, left/right handles, max.:
Note 1: Noise emissions in the environment measured as sound power (LWA) in conformity with EC directive 2000/14/
EC.
Note 2: Equivalent sound pressure level is calculated as the time-weighted energy total for sound pressure levels under
various working conditions with the following time distribution: 1/2 idling and 1/2 max speed.
NOTE! The noise pressure level at operator’s ear and vibrations on the handles are measured with all the approved
cutting attachments for the machine. The table indicates the lowest and highest values.
English – 27
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TECHNICAL DATA
Approved accessories
Type
Cutting attachment guard, Art. no.
Centre hole in blades/cutters,
Ø 25,4 mm
Output shaft thread M12
Multi 255-3 (Ø 255 3 teeth)
Grass 255-4 (Ø 255 4 teeth)
Multi 275-4 (Ø 275 4 teeth)
Multi 300-3 (Ø 300 3 teeth)
Polytrim Ø 300
537 33 16-04
537 33 16-04
537 33 16-04
537 33 16-04
537 33 16-04
537 33 16-04
537 33 16-04
537 33 16-04
-
Grass blade/grass cutter
Plastic blades
Trimmer head
Support cup
Tap-N-Go 35 Spin
S35
Tap-N-Go 45 Spin
503 89 01-02
EC-declaration of conformity
(Applies to Europe only)
We, Jonsered, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declare that the clearing saws Jonsered GC 2236
with serial numbers dating from 2006 onwards (the year is clearly stated on the rating plate, followed by the serial
number), comply with the requirements of the COUNCIL’S DIRECTIVE:
- of June 22, 1998 ”relating to machinery” 98/37/EC, annex IIA.
- of May 3, 1989 ”relating to electromagnetic compatibility” 89/336/EEC, and applicable supplements.
- of May 8, 2000 ”relating to the noise emissions in the environment” 2000/14/EC. Conformity assessment according
to Annex V.
For information relating to noise emissions, see the chapter Technical data.The following standards have been applied:
EN ISO 12100-2, CISPR 12:2005, EN ISO 11806
SMP Svensk Maskinprovning AB, Fyrisborgsgatan 3, SE-754 50 Uppsala, Sweden, has performed voluntary type
examination on behalf of Husqvarna AB. The certificates are numbered:
SEC/06/1136, 01/164/056
Huskvarna 27 September 2006
Michael Kullberg, Business manager
28 – English
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Poly Trim
1
2
<20mm
B
A
3
4
5
>20mm
7
6 Nm
6
!
8
X 10
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S35
1
2
3
8,5 m
28'
10 cm
4"
4,2 m
14'
4
5
7
6
8
"Clic"
10
11
15 cm
6"
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S35
1
2
4,25 m
14'
4,25 m
14'
4
3
5
15 cm
6"
B
A
15 cm
6"
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Tap n’ Go 35 Spin
1
2
3
8,5 m
28'
10 cm
4"
4,3 m
14'
4
5
7
6
8
"Clic"
15 cm
6"
9
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Tap n’Go 45 Spin
1
2
3
10 m
32'
10 cm
4"
4,3 m
14'
4
5
7
6
8
15 cm
6"
"Clic"
9
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1151216-26
´®z+S5^¶64¨
2008-05-30
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