Jonsered GT2123 User Manual
Oper ator ′ s manual
Please read the oper ator’s manual carefully and
make sure you understand the instructions
before using the machine.
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KEY T O SYMBOLS
Symbols
ARNING! 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.
Please read the operator’s manual
carefully and make sure you understand
the instructions before using the machine.
Always wear:
• A protective helmet where there is a risk
of falling objects
• Approved hearing protection
• Approved eye protection
Max. speed of output shaft, rpm
This product is in accordance with
applicable EC directives.
Only use non-metallic , flexible cutting
attachments, i.e. trimmer heads with
trimmer cord.
Noise emission to the en vironment
according to the European Community’s
Directive. The machine’s emission is
specified in chapter Technical data and on
label.
Other symbols/decals on the mac hine refer to
special certification requirements for certain
markets.
Switch off the engine b y moving the stop
switch to the STOP position before carrying
out any checks or maintenance.
Alw ays wear approved protective gloves.
Regular cleaning is required.
atch out for thrown objects and
ricochets.
The oper ator of the machine must ensure,
while working, that no persons or animals
come closer than 15 metres.
Machines fitted with saw blades or grass
blades can be thrown violently to the side
when the blade comes into contact with a
fixed object. This is called blade thrust. The
blade is capable of amputating an arm or
leg. Always keep people and animals at
least 15 metres from the machine.
Arrows which show limits for handle
positioning.
Alw ays wear approved protective gloves.
15 m
50FT
50FT
Visual chec k.
15 m
ear sturdy, non-slip boots.
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CONTENTS
Contents
KEY TO SYMBOLS
Symbols ....................................................................... 2
CONTENTS
Contents ...................................................................... 3
Note the following before starting: ................................ 3
INTR ODUCTION
Dear Customer , ............................................................ 4
WHA T IS WHAT?
What is what on the br ush cutter? ............................... 5
GENERAL SAFETY PRECA UTIONS
Impor tant ...................................................................... 6
Personal protective equipment ..................................... 6
Machine ′ s safety equipment ........................................ 7
Cutting equipment ........................................................ 8
ASSEMBL Y
Fitting the main body ................................................... 9
Connecting throttle cable and stop switch wires .......... 9
Fitting the handle ......................................................... 9
Assembling the cutting equipment ............................... 10
FUEL HANDLING
Fuel saf ety ................................................................... 11
Fuel .............................................................................. 11
Fuelling ........................................................................ 12
ARTING AND STOPPING
Chec k before starting ................................................... 13
Starting and stopping ................................................... 13
ORKING TECHNIQUES
Gener al working instructions ....................................... 14
MAINTENANCE
Carb urettor ................................................................... 16
Muffler .......................................................................... 16
Cooling system ............................................................ 17
Spark plug .................................................................... 17
Air filter ......................................................................... 17
Maintenance schedule ................................................. 18
TECHNICAL D ATA
echnical data .............................................................. 19
EC-declaration of conformity ........................................ 20
Note the f ollowing before starting:
Please read the oper ator’s manual carefully.
ARNING! Long-term exposure to noise can
result in permanent hearing impairment. So
!
always use approved hearing protection.
ARNING! 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.
ARNING! 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.
English
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INTR ODUCTION
Dear Customer ,
Cong ratulations 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
of the machine can be extended. If you will sell this machine, make sure that the buyer will get the operator
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.
content (using, service, maintenance etc) the life span and the second-hand value
s manual.
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English
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WHA T IS WHA T?
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What is what on the grass trimmer?
Trimmer head
2 Cord cutter
3 Cutting attachment guard
4 Shaft
5 Loop handle
6 Throttle control
7 Stop switch
8 Starter handle
9 Fuel tank
10 Choke control
11 Air purge
12 Air filter cover
13 Clutch cover
14 Cylinder cover
15 Spark plug cap and spark plug
16 Combination spanner
17 Locking pin
18 Spanner
19 Operator ′ s manual
English
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GENERAL SAFETY PRECA UTIONS
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Impor tant
IMPORTANT!
The machine is only designed for trimming grass.
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.
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.
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.
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.
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.
ARNING! Listen out for warning signals or
shouts when you are wearing hearing
!
protection. Always remove your hearing
protection as soon as the engine stops.
HEARING PR OTECTION
Wear hearing protection that provides adequate noise
reduction.
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.
GLOVES
Gloves should be worn when necessary, e.g., when fitting
cutting attachments.
ARNING! This machine produces an
electromagnetic field during operation. This
!
field may under some circumstances
interfere with active or passive medical
implants. To reduce the risk of serious or
fatal injury, we recommend persons with
medical implants to consult their physician
and the medical implant manufacturer
before operating this machine.
ARNING! Running an engine in a confined
or badly ventilated area can result in death
!
due to asphyxiation or carbon monoxide
poisoning.
Personal protective equipment
IMPOR TANT!
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.
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.
BOOTS
Wear sturdy, non-slip boots.
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.
FIRST AID KIT
Always have a first aid kit nearby.
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GENERAL SAFETY PRECA UTIONS
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Mac hine ′ s safety equipment
This section descr ibes 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.
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
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.
ARNING! 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.
Stop s witch
s
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.
For mufflers it is very important that you follow the instructions
on checking, maintaining and servicing your machine.
Never use a machine that has a faulty muffler.
Regularly check that the muffler is securely attached to the
machine.
Use the stop s witch to switch off the engine.
Start the engine and make sure the engine stops when you
move the stop switch to the stop setting.
Muffl er
The m uffler 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.
ARNING! 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!
ARNING! The inside of the muffler contain
chemicals that may be carcinogenic. Avoid
!
contact with these elements in the event of a
damaged muffler.
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!
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GENERAL SAFETY PRECAUTIONS
Cutting equipment
This section describes how to choose and maintain your
cutting equipment in order to:
• Reduce the risk of blade thrust.
• 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.
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! A faulty cutting attachment may
increase the risk of accidents.
!
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 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.
• 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.
• 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.
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