Jonsered BC 2128 User Manual
Operator’s manual
Manual d’utilisation
Manual de instrucciones
Please read these instructions and make sure you understand them before using the machine.
Lire attentivement et bien assimiler le manuel d’utilisation avant d’utiliser la machine.
Lea detenidamente el manual de instrucciones y asegúrese de entender su contenido antes de utilizar la máquina.
GB (2-27)
FR (28-53)
ES (54-79)
SYMBOL EXPLANATION
Symbols
WARNING: Clearing saws, brush-
cutters and trimmers can be dangerous! Careless or incorrect use
can result in serious or fatal
injury to the operator or others.
Please read the operator’s manual
carefully and makesureyou
understand the instructions
before using the machine.
Always wear:
S A protective helmet where there
is a risk of falling objects
S Hearing protection
S Approved eye protection
Max. speed of output shaft, rpm
Beware of thrown objects and
ricochets.
The operator of the machine
shall ensure, while working,
that no persons or animals
come closer than 15 metres.
Machines fitted with grass blades
can be thrown violently to the side
when the blade comes into contact
with a fixed object. 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 mounting.
This product is in accordance
with applicable EC directives.
Noise emission to the
environment according to the
European Community’s
Directive. The machine’s
emission is specified in the
T echnical data section and
on label.
Sound pressure level at
7,5 metres.
Use unleaded or quality leaded
petrol and two--stroke oil
mixed at a ratio of 2% (1:50).
Other symbols/decals on the machine
refer to special certification requirements
for certain markets.
Stop the engine by pushing
and holding the stop switch
in the STOP position. 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.
Regular cleaning is required.
Always wear approved protective
gloves.
Use anti--slip and stable boots.
Only use non--metallic, flexible
cutting attachments, i.e. trimmer
heads with trimmer line.
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Visual check.
Approved eye protection must
always be used.
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CONTENTS
Contents
KEY TO SYMBOLS
Symbols 2.........................
CONTENTS
Contents 3........................
Note the following before starting 3....
WHAT IS WHAT?
What is what? 4...................
GENERAL SAFETY PRECAUTIONS
Important 5........................
Personal protective equipment 5......
Machine’s safety equipment 6........
Cutting equipment 8.................
ASSEMBLY
Fitting the handlebar 10...............
Fitting the harness and harness clamp 10
Fitting blades and trimmer heads 11....
Fitting a blade guard, grass blade and
grass cutter 11......................
Fitting the trimmer guard and
trimmer head 12.....................
FUEL HANDLING
Fuel safety 13.......................
Fuel 13............................
Fueling 14..........................
STARTING AND STOPPING
Check before starting 15..............
Starting and stopping 15..............
WORKING TECHNIQUES
General working instructions 17........
MAINTENANCE
Carburetor 20.......................
Muffler 21..........................
Spark plug 21.......................
Air filter 22..........................
Bevel gear 22.......................
Sharpening grass cutters and grass
blades 22..........................
Maintenance schedule 23.............
TECHNICAL DATA
Technical data 24....................
EC--declaration of conformity
(Applies to Europe only) 25............
Note the following before
starting:
Please read the operator’s manual carefully.
WARNING: Under no circum-
stances may the design of the
machine be modified without the
permissionof 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.
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.
WARNING: Long--term exposure
to noise can result in permanent
hearing impairment. So always use
approved hearing protection.
Jonsered has a policy of continuous product
development and therefore reserves the right
to modify the design and appearance of
products without prior notice.
115304126 Rev. 2 7/15/10
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WHAT IS WHAT?
8
1
2
3
4
18
19
5
7
20
1
28
9
29
17
10
6
16
14
22
15
11
12
13
21
4
24
23
21
4
What is what?
1. Blade 16. Air filter cover
2. Grease filler cap 17. Handle adjustment
3. Bevel gear 18. Locking nut
4. Cutting attachment guard 19. Support flange
5. Shaft 20. Support cup
6. Handlebar 21. Drive disc
7. Throttle control 22. Trimmer head
8. Stop switch 23. Socket spanner
9. Throttle lock--out 24. Transport guard
10. Harness clamp 25. Hex wrench
11. Cylinder cover 26. Locking pin
12. Starter handle 27. Harness
13. Fuel tank 28. Start throttle button
14. Choke control 29. Adjusting the throttle wire
15. Primer bulb 30. Operator’s manual
25
27
26
30
115304126 Rev. 2 7/15/10
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GENERAL SAFETY PRECAUTIONS
Important
IMPORTANT! The machine is only designed
for trimming grass, grass clearing and/or
forestry clearing.
The only accessories you can operate with
this engine unit are the cutting attachments we
recommend in the section on T echnical 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.
Never use the machine in extreme weather
conditions such as severe cold, very hot and/
or humid climates.
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 and guards must be fitted before
starting. Make sure the spark plug cap and
lead are not damaged. Otherwise you could
get an 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 15 metres.
WARNING: This machine pro-
duces an electromagnetic field
during operation. Under some circumstances, this field may 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.
WARNING: Using an incorrect
cutting attachment or an incorrectly
filed blade can increase the risk of
accidents.
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
meanariskofseriouspersonalinjury. Therefore remove the spark plug
cap when the machine is not under
close supervision.
Personal protective equipment
IMPORTANT!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.
WARNING: Listen out for warn-
ing signals or shouts when you are
wearing hearing protection. Always
remove your hearing protection as
soon as the engine stops.
HELMET
A helmet should be worn if the brush being
cleared is taller than 2 metres.
HEARING PROTECTION
Wear hearing protection that provides
adequate noise reduction.
115304126 Rev. 2 7/15/10
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 EN
166 in EU countries.
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GENERAL SAFETY PRECAUTIONS
GLOVES
Gloves should be worn when necessary,
e.g., when fitting cutting attachments.
BOOTS
Wear anti--slip and stable boots.
CLOTHING
Wear clothes made of a strong fabric and
avoid loose clothing that can catch on
shrubs and branches. Always wear heavy,
long pants. Do not wear jewelry, shorts
sandals or go barefoot. Secure hair so it is
above shoulder level.
FIRST AID KIT
A first aid kit should be carried by operators of clearing saws, brushcutters or trimmers.
WARNING: Never use a machine
that has faulty safety equipment!
Follow the control, maintenance
and service instructions described
in this section. If your machine fails
any of these checks contact your
service agent to get it repaired.
Throttle lock--out
The throttle lock--out is designed to prevent
accidental operation of the throttle control.
When you press the lock--out (A) (i.e. when
you grasp the handle) it releases the
throttle control (B). When you release the
handle, the throttle control and the throttle
lock--out 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.
Make sure the throttle control is locked at
the idle setting when the throttle lock--out is
released.
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.
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.
115304126 Rev. 2 7/15/10
Press the throttle lock--out and make sure it
returns to its original position when you release it.
Check that the throttle control and throttle
lock--out move freely and that the return
springs work properly.
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GENERAL SAFETY PRECAUTIONS
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 be checked.
See instructions under the heading
Maintenance.
Stop switch
Make sure the engine stops when you push
and hold the stop switch.
Cutting attachment guard
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.
Use of incorrectly wound trimmer line or an
incorrect cutting attachment increases the
level of vibration.
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 color or condition.
These symptoms normally appear
in the fingers, hands or wrists. The
risk increases at low temperatures.
Harness quick release
There is an easily accessible, harness
quick release fitted at the front in case of an
emergency that requires you to free yourself from the machine and harness.
See instructions under the heading Adjusting the harness.
Check that the harness straps are correctly
positioned. Once the harness and machine
have been adjusted, check that the harness
quick release works correctly.
Muffler
Check that the guard is undamaged and not
cracked. Replace the guard if it has been
exposed to impact or is cracked.
Always use the recommended guard for the
cutting attachment you are using. See the
“Technical data” section.
WARNING: Never use a cutting
attachment without an approved
guard. See the section on “Technical
data”. If an incorrect or faulty guard
is fitted this can cause serious
personal injury.
115304126 Rev. 2 7/15/10
The muffler is designed to reduce the noise
level and to direct the exhaust gases away
from the operator.
CAUTION! Muffler is fitted with a catalytic
convertic designed to reduce harmful exhaust gases.
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GENERAL SAFETY PRECAUTIONS
v
In countries that ha
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.
e a warm and dry
Muffler bolts
Spark arrestor mesh
Locking nut
A locking nut is used to secure some types
of cutting attachment.
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.
Regularly check that the muffler is securely
attached to the machine.
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.
WARNING: Bear in mind that:
Engine exhaust fumes contain carbon monoxide, which can cause
carbon monoxide poisoning. For
this reason you should not start or
run the machine indoors, or anywhere that is poorly ventilated.
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!
115304126 Rev. 2 7/15/10
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
This section describes how to choose and
maintain your cutting equipment in order to:
S Reduce the risk of blade thrust.
S Obtain maximum cutting performance.
S Extend the life of cutting equipment.
IMPORTANT!
Only use cutting attachments with the guards
we recommend! See the section on
“T echnical data”.
Refer to the instructions for the cutting attachment to check the correct way to load the
trimmer line and the correct line diameter.
Keep the teeth of the blade correctly sharpened! Follow our recommendations. Also refer to the instructions on the blade packaging.
Maintain the correct blade setting! Follow our
instructions and use the recommended file
gauge.
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GENERAL SAFETY PRECAUTIONS
WARNING: Always stop the en-
gine 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
lead from the spark plug before
you start to work on it.
WARNING: Usinganincorrect
cutting attachment or an incorrectly sharpened blade increases the
risk of kickback.
Cutting equipment
Grass blades and grass cutters are intended for cutting coarse grass.
A trimmer head is intended for trimming
grass.
General rules
Only use cutting attachments with the
guards we recommend! See the section on
Technical data.
Sharpening grass cutters and
grass blades
S See the cutting attachment packaging for
correct sharpening instructions. Sharpen
blades and cutters using a single--cut flat file.
S 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.
Trimmerhead
IMPORTANT!
Always ensure the trimmer line is wound
tightly and evenly around the drum, otherwise the machine will generate harmful
vibration.
S Only use the recommended cutting at-
tachments. See the section 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.
Check the cutting attachment for damage
or cracks. A damaged cutting attachment
should always be replaced.
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S Smaller machines generally require small
trimmer heads and vice versa. This is because when clearing using trimmer line
the engine must throw out the trimmer
line radially from the trimmer head and
overcome the resistance of the grass
being cleared.
S The length of the trimmer line is also im-
portant. A longer trimmer line requires
greater engine power than a shorter
trimmer line of the same diameter.
S Make sure that the cutter on the trimmer
guard is intact. This is used to cut the
trimmer line to the correct length.
S To increase the life of the trimmer line 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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