Operator´s manual
Please read the operator’s manual
carefully and make sure you understand
the instructions before using the machine.
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CONTENTS
Contents
Before using a new chain saw
KEY TO SYMBOLS
•
Please read the operator’s manual carefully and make
sure you understand the instructions before using the
machine.
Key to symbols .............................................................
CONTENTS
2
Contents ......................................................................
Before using a new chain saw .....................................
SAFETY INSTRUCTIONS
3
3
•
•
Check that the cutting equipment is correctly fitted and
adjusted. See instructions under the heading Assembly.
Refuel, start the chain saw and check the carburettor
settings. See the instructions under the headings Fuel
Handling, Starting and Stopping, and Carburettor.
Personal protective equipment .....................................
Machine′s safety equipment ........................................
4
4
Checking, maintaining and servicing the machine′s
•
Do not use the chain saw until sufficient chain oil has
reached the chain. See instructions under the heading
Lubricating cutting equipment.
safety equipment ..........................................................
7
9
Cutting equipment ........................................................
How to avoid kickback .................................................. 14
General safety precautions .......................................... 16
General working instructions ....................................... 17
WHAT IS WHAT?
IMPORTANT! If the carburettor mixture is too lean it greatly
increases the risk of engine failure. Poor maintenance of the
air filter will cause carbon build-up on the spark plug and lead
to starting difficulties. If the chain is improperly adjusted it will
cause increased wear or damage to the bar, drive sprocket
and chain.
What is what on the chain saw? .................................. 23
ASSEMBLY
Fitting the bar and chain .............................................. 24
FUEL HANDLING
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.
!
Fuel .............................................................................. 25
STARTING AND STOPPING
Starting and stopping ................................................... 27
MAINTENANCE
Carburettor adjustment ................................................ 29
Carburettor with movement limiters ............................. 29
Carburettor without movement limiters ........................ 30
Starter .......................................................................... 32
Air filter ......................................................................... 32
Spark plug .................................................................... 33
Muffler .......................................................................... 33
Needle bearing lubrication ........................................... 33
Adjustment of the oil pump .......................................... 33
Cooling system ............................................................ 34
Centrifugal cleaning “Turbo” ......................................... 34
Heated handles ............................................................ 34
Electrical carburettor heating ....................................... 34
Winter use .................................................................... 34
Daily maintenance ....................................................... 35
Weekly maintenance .................................................... 35
Monthly maintenance ................................................... 35
TECHNICAL DATA
WARNING! A chain saw is a dangerous tool
if used carelessly or incorrectly and can
cause serious, even fatal injuries. It is very
important that you read and understand the
contents of this operator’s manual.
!
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! Long term inhalation of the
engine’s exhaust fumes, chain oil mist and
dust from sawdust can represent a health
risk.
!
Jonsered has a policy of continuous product development
and therefore reserves the right to modify the design and
appearance of products without prior notice.
Technical data .............................................................. 36
Bar and chain combinations ........................................ 37
EC-declaration of conformity ........................................ 38
English – 3
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SAFETY INSTRUCTIONS
Personal protective equipment
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.
WARNING! Most chain saw accidents
happen when the chain touches the
operator.
!
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! Never use a machine that has
faulty safety equipment! Carry out the
inspection, maintenance and service
routines listed in this section.
!
•
•
•
Chain brake and front hand guard
WARNING! Long or continuous exposure to
high noise levels may cause permanent
hearing impairment. Always wear approved
hearing protection when operating a chain
saw.
!
Throttle lock
•
•
•
Protective helmet
Hearing protection
Protective goggles or a visor
Chain catcher
•
•
Gloves with saw protection
•
Right hand guard
Protective trousers with saw protection
•
•
Vibration damping system
Stop switch
•
Boots with saw protection, steel toe-cap and non-slip sole
•
•
Muffler
Generally clothes should be close-fitting without restricting
your freedom of movement.
•
Always have a first aid kit nearby.
Cutting equipment. See instructions under the heading
Cutting equipment.
4 – English
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SAFETY INSTRUCTIONS
•
You can also use the chain brake as a temporary brake
Chain brake and front hand guard
when you change position or if you put the chain saw
down for a short time! Apart from the fact that a chain saw
with a chain brake greatly reduces the risk of accidents
due to kickback, you should also apply the chain brake
manually if there is a risk of the chain accidentally hitting
anyone or anything close by.
Your chain saw is equipped with a chain brake that is
designed to stop the chain immediately if you get a kickback.
The chain brake reduces the risk of accidents, but only you
can prevent them.
Take care when using your saw and make sure the kickback
zone of the bar never touches any object.
•
The chain brake (A) can either be activated manually (by
your left hand) or automatically by the inertia release
mechanism (a pendulum that swings independently of the
chain saw. On most of our models the front hand guard
acts as a counterweight in case of kickback).
•
•
To release the chain brake pull the front hand guard
backwards, towards the front handle.
The brake is applied when the front hand guard (B) is
pushed forwards.
Kickback can be very sudden and violent. Most kickbacks
are minor and do not always activate the chain brake. If
this happens you should hold the chain saw firmly and not
let go.
This movement activates a spring-loaded mechanism that
tightens the brake band (C) around the engine drive
system (D) (clutch drum).
•
The way the chain brake is activated, either manually or
automatically by the inertia release mechanism, depends
on the force of the kickback and the position of the chain
saw in relation to the object that the kickback zone of the
bar strikes.
•
The front hand guard is not designed solely to activate the
chain brake. Another important feature is that it reduces
the risk of the chain hitting your left hand if you lose grip
of the front handle.
If you get a violent kickback while the kickback zone of the
bar is farthest away from you the chain brake will be
activated by the movement of the counterweight (inertia
activated) in the kickback direction.
•
The chain brake must be engaged when the chain saw is
started.
If the kickback is less violent or the kickback zone of the
bar is closer to you the chain brake will be activated
manually by the movement of your left hand.
English – 5
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SAFETY INSTRUCTIONS
•
During felling your left hand grasps the front handle in
Vibration damping system
such a way that it cannot activate the chain brake. In this
position, i.e. when your left hand is in such a position that
it cannot affect the movement of the front hand guard, the
chain brake can only be activated by the inertia of the
counterweight.
Your machine is equipped with a vibration damping system
that is designed to minimize vibration and make operation
easier.
When you use a chain saw, vibration is generated by the
uneven contact between the chain and the wood you are
cutting.
•
The inertia activated chain brake is a valuable feature but
there are certain factors to remember (see point above).
Cutting hardwoods (most broadleaf trees) creates more
vibration than cutting softwoods (most conifers). Cutting with
cutting equipment that is blunt or faulty (wrong type or badly
sharpened) will increase the vibration level. See instructions
under the heading Cutting equipment.
Throttle lock
The throttle lock 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 control and the
throttle lock 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.
The machine′s vibration damping system reduces the transfer
of vibration between the engine unit/cutting equipment and
the machine′s handle unit. The body of the chain saw,
including the cutting equipment, is insulated from the handles
by vibration damping units.
Chain catcher
WARNING! Overexposure to vibration can
lead to circulatory damage or nerve damage
in people who have impaired circulation.
The chain catcher is designed to catch the chain if it snaps or
jumps off. This should not happen if the chain is properly
tensioned (see instructions under the heading Assembly) and
if the bar and chain are properly serviced and maintained
(see instructions under the heading General working
instructions).
!
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.
Stop switch
Use the stop switch to switch off the engine.
Right hand guard
Apart from protecting your hand if the chain jumps or snaps,
the right hand guard stops branches and twigs from
interfering with your grip on the rear handle.
6 – English
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SAFETY INSTRUCTIONS
Checking the front hand guard
Muffler
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user.
Make sure the front hand guard is not damaged and that there
are no visible defects such as cracks.
WARNING! 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!
!
Move the front hand guard forwards and back to make sure it
moves freely and that it is securely anchored to the clutch
cover.
In areas with a hot, dry climate there is a high risk of fires.
These areas are sometimes controlled by legislation and
requirements that among other things the muffler must be
equipped with an approved type of spark arrestor mesh.
For mufflers it is very important that you follow the instructions
on checking, maintaining and servicing your machine. See
instructions under the heading Checking, maintaining and
servicing the machine’s safety equipment.
Checking the inertia brake release
WARNING! The muffler gets very hot in use
and remains so for a short time afterwards.
Do not touch the muffler if it is hot!
!
Hold the chain saw over a stump or other firm object. Let go
of the front handle so that the bar drops towards the stump as
the chain saw rotates around the rear handle.
Checking,maintaining and servicing
the machine′s safety equipment
WARNING! 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.
When the bar hits the stump the brake should be applied.
Chain brake and front hand guard
Checking brake band wear
Checking the brake trigger
Place the chain saw on firm ground and start it.Make sure the
chain does not touch the ground or any other object. See the
instructions under the heading Start and stop.
Brush off any wood dust, resin and dirt from the chain brake
and clutch drum. Dirt and wear can impair operation of the
brake.
Regularly check that the brake band is at least 0.6 mm thick
at its thinnest point.
English – 7
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SAFETY INSTRUCTIONS
Grasp the chain saw firmly, wrapping your fingers and thumbs
around the handles.
Chain catcher
Check that the chain catcher is not damaged and is firmly
attached to the body of the chain saw.
Apply full throttle and activate the chain brake by tilting your
left wrist forward onto the front hand guard. Do not let go of
the front handle. The chain should stop immediately.
Right hand guard
Throttle lock
Check that the right hand guard is not damaged and that
there are no visible defects, such as cracks.
•
•
•
•
Make sure the throttle control is locked at the idle setting
when the throttle lock is released.
Vibration damping system
Press the throttle lock and make sure it returns to its
original position when you release it.
Regularly check the vibration damping units for cracks or
deformation.
Check that the throttle control and throttle lock move freely
and that the return springs work properly.
Make sure the vibration damping units are securely attached
to the engine unit and handle unit.
Start the chain saw and apply full throttle. Release the
throttle control and check that the chain stops and
remains stationary. If the chain rotates when the throttle
control is in the idle position you should check the
carburettor idle adjustment.
Stop switch
Start the engine and make sure the engine stops when you
move the stop switch to the stop setting.
8 – English
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SAFETY INSTRUCTIONS
•
Keep the chain’s cutting teeth properly sharpened!
Muffler
Follow our instructions and use the recommended file
gauge. A damaged or badly sharpened chain increases
the risk of accidents.
Never use a machine that has a faulty muffler.
•
•
Maintain the correct raker clearance! Follow our
instructions and use the recommended raker gauge.
Too large a clearance increases the risk of kickback.
Regularly check that the muffler is securely attached to the
machine.
Keep the chain properly tensioned! If the chain is slack
it is more likely to jump off and lead to increased wear on
the bar, chain and drive sprocket.
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.
•
Keep cutting equipment well lubricated and properly
maintained! A poorly lubricated chain is more likely to
break and lead to increased wear on the bar, chain and
drive sprocket.
Never use a muffler if the spark arrestor mesh is missing
or defective.
WARNING! Never use a machine with faulty
safety equipment.The machine’s safety
equipment must be checked and maintained
Cutting equipment designed to minimise
kickback
!
as described in this section. If your machine
fails any of these checks contact your
service agent to get it repaired.
WARNING! Faulty cutting equipment or the
wrong combination of bar and chain
increases the risk of kickback! Use only the
bar and chain combinations that we
!
Cutting equipment
recommend. See the Technical data section.
This section describes how to choose and maintain your
cutting equipment in order to:
The only way to avoid kickback is to make sure that the
kickback zone of the bar never touches anything.
•
•
•
•
Reduce the risk of kickback.
By using cutting equipment with ”built-in” kickback reduction
and keeping the chain sharp and well-maintained you can
reduce the effects of kickback.
Reduce the risk of the chain breaking or jumping.
Obtain maximum cutting performance.
Extend the life of cutting equipment.
Bar
The smaller the tip radius the smaller the kickback zone and
the lower the chance of kickback.
General rules
•
Only use cutting equipment recommended by us!
See the Technical data section.
English – 9
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SAFETY INSTRUCTIONS
•
Bar groove width (inches/mm).The groove in the bar must
match the width of the chain drive links.
Chain
A chain is made up of a number of links, which are available
in standard and low-kickback versions.
None
Standard
Low-kickback
Cutting link
Drive link
Side link
•
Chain oil hole and hole for chain tensioner. The bar must
be matched to the chain saw design.
Chain
•
Chain pitch (inches)
Combining these links in different ways gives different
degrees of kickback reduction. In terms of kickback reduction
alone, four different types of link are available.
Level of kickback
reduction
Cutting link
Drive link
Side link
•
Drive link width (mm/inches)
Number of drive links.
Low
Standard
High
•
•
Extra high
Some terms that describe the bar and chain
Level of kickback reduction. The level of kickback
reduction offered by a chain is only indicated by its model
number. See the Technical data section to find the model
numbers of chains that are recommended for use with
your model of chain saw.
When the cutting equipment supplied with your saw becomes
worn or damaged you must replace it with one of the bars and
chains recommended by us. See the Technical data section.
Bar
•
Length (inches/cm)
•
Number of teeth on bar tip sprocket (T). Small number =
small tip radius = low risk of kickback.
Sharpening your chain and adjusting raker
clearance
WARNING! The risk of kickback is increased
with a badly sharpened chain!
•
•
Chain pitch (inches).The spacing between the drive links
of the chain must match the spacing of the teeth on the
bar tip sprocket and drive sprocket.
!
General information on sharpening cutting teeth
•
Never use a blunt chain.When the chain is blunt you have
to exert more pressure to force the bar through the wood
and the cuttings will be very small.If the chain is very blunt
it will not produce any cuttings at all. Wood powder would
be the only result.
Number of drive links. The number of drive links is
determined by the length of the bar, the chain pitch and
the number of teeth on the bar tip sprocket.
10 – English
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SAFETY INSTRUCTIONS
•
A sharp chain eats its way through the wood and
produces long, thick cuttings.
WARNING! The following faults will increase
the risk of kickback considerably:
!
File angle too large
Cutting angle too small
File diameter too small
•
The cutting part of the chain is called the cutting link and
this consists of a cutting tooth (A) and the raker lip (B).The
cutting depth is determined by the difference in height
between the two.
Sharpening cutting teeth
When you sharpen a cutting tooth there are five important
factors to remember.
1
Filing angle
To sharpen cutting teeth you will need a round file and a file
gauge. See the Technical data section for information on the
size of file and gauge that are recommended for the chain
fitted to your chain saw.
2
3
Cutting angle
File position
•
•
Check that the chain is correctly tensioned. A slack chain
will move sideways, making it more difficult to sharpen
correctly.
Always file cutting teeth from the inside face. Reduce the
pressure on the return stroke.File all the teeth on one side
first, then turn the chain saw over and file the teeth on the
other side.
4
5
Round file diameter
File depth
•
File all the teeth to the same length. When the length of
the cutting teeth is reduced to 4 mm (0.16") the chain is
worn out and should be replaced.
It is very difficult to sharpen a chain correctly without the right
equipment. We recommend that you use our file gauge. This
will help you obtain the maximum kickback reduction and
cutting performance from your chain.
See the Technical data section for information about
sharpening your chain.
English – 11
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SAFETY INSTRUCTIONS
General advice on setting raker clearance
Tensioning the chain
•
When you sharpen the cutting teeth you reduce the raker
clearance (=cutting depth). To maintain optimal cutting
performance you must file back the raker lip to the
recommended height.
WARNING! A slack chain may jump off and
cause serious or even fatal injury.
See the Technical data section to find the raker clearance
for your particular chain.
!
The more you use a chain the longer it becomes. It is
therefore important to adjust the chain regularly to take up the
slack.
Check the chain tension every time you refuel. NOTE! A new
chain has a running-in period during which you should check
the tension more frequently.
•
On a low-kickback cutting link the front edge of the raker
lip is rounded. It is very important that you maintain this
radius or bevel when you adjust the raker clearance.
The position of the chain tensioning screw on our chain saws
varies from model to model. See the What is what? section to
find out where it is on your model.
Tension the chain as tightly as possible, but not so tight that
you cannot pull it round freely by hand.
•
We recommend that you use our raker gauge to achieve
the correct clearance and bevel on the raker lip.
WARNING! The risk of kickback is increased
if the raker clearance is too large!
!
•
Undo the bar nuts that hold the clutch cover/chain brake.
Use the combination spanner. Then tighten the bar nuts
by hand as tight as you can.
Setting the raker clearance
•
•
Before setting the raker clearance the cutting teeth should
be newly sharpened. We recommend that you adjust the
raker clearance every third time you sharpen the chain.
NOTE! This recommendation assumes that the length of
the cutting teeth is not reduced excessively.
•
Raise the tip of the bar and stretch the chain by tightening
the chain tensioning screw using the combination
spanner. Tighten the chain until it does not sag from the
underside of the bar.
To adjust the raker clearance you will need a flat file and a
raker gauge.
•
Use the combination spanner to tighten the bar nuts while
lifting the tip of the bar at the same time. Check that you
can pull the chain round freely by hand and that it does not
sag from the underside of the bar.
•
•
Place the gauge over the raker lip.
Place the file over the part of the lip that protrudes through
the gauge and file off the excess.The clearance is correct
when you no longer feel any resistance as you draw the
file over the gauge.
12 – English
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SAFETY INSTRUCTIONS
If the chain lubrication is not working:
Lubricating cutting equipment
•
Check that the oil channel in the bar is not obstructed.
Clean if necessary.
WARNING! Poor lubrication of cutting
equipment may cause the chain to snap,
which could lead to serious, even fatal
injuries.
!
Chain oil
Chain oil must demonstrate good adhesion to the chain and
also maintain its flow characteristics regardless of whether it
is warm summer or cold winter weather.
•
Check that the groove in the edge of the bar is clean.
Clean if necessary.
As a chain saw manufacturer we have developed an optimal
chain oil which, with its vegetable oil base, is also
biodegradable.We recommend the use of our own oil for both
maximum chain life and to minimise environmental damage.
If our own chain oil is not available, standard chain oil is
recommended.
In areas where oil specifically for lubrication of saw chains is
unavailable, ordinary EP 90 transmission oil may be used.
•
Check that the bar tip sprocket turns freely and that the
lubricating hole in the tip sprocket is not blocked. Clean
and lubricate if necessary.
Never use waste oil! This is dangerous for yourself, the
machine and the environment.
Filling with chain oil
•
All our chain saws have an automatic chain lubrication
system. On some models the oil flow is also adjustable.
If the chain lubrication system is still not working after carrying
out the above checks and associated measures you should
contact your service agent.
Lubricating the bar tip sprocket
•
The sizes of the chain oil tank and fuel tank have been
chosen so that the engine will run out of fuel before
running out of oil. This means that you should never run
with a dry chain.
Lubricate the bar tip sprocket each time you refuel. Use the
special grease gun and a good quality bearing grease.
However, this safety feature requires that you use the right
sort of chain oil (if the oil is too thin it will run out before the
fuel), and that you adjust the carburettor as recommended
(a weak mixture may mean that the fuel lasts longer than
the oil) and that you also use the recommended cutting
equipment (a bar that is too long will use more chain oil).
The above conditions also apply to chain saw models with
an adjustable oil pump.
Needle bearing lubrication
Checking chain lubrication
•
Check the chain lubrication each time you refuel.
Aim the tip of the bar at a light coloured surface about 20
cm (8 inches) away. After 1 minute running at 3/4 throttle
you should see a distinct line of oil on the light surface.
The clutch drum is fitted with one of the following drive
sprockets:
A Spur sprocket (the chain sprocket is welded on the drum)
B Rim sprocket (replaceable)
Both versions have a needle bearing on the drive shaft, which
has to be greased regularly (once a week). CAUTION! Use a
high-quality bearing grease or engine oil.
English – 13
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SAFETY INSTRUCTIONS
•
Whether the tip of the bar is uneven or badly worn. If a
hollow forms on the underside of the bar tip this is due to
running with a slack chain.
Checking wear on cutting equipment
Check the chain daily for:
•
To prolong the life of the bar you should turn it over daily.
•
•
•
Visible cracks in rivets and links.
Whether the chain is stiff.
Whether rivets and links are badly worn.
WARNING! Most chain saw accidents
happen when the chain touches the
operator.
We recommend you compare the existing chain with a new
chain to decide how badly the existing chain is worn.
!
Wear personal protective equipment. See
instructions under the heading Personal
protective equipment.
Do not tackle any job that you feel you are
not adequately trained for. See instructions
under the headings Personal protective
equipment, How to avoid kickback, Cutting
equipment and General working
When the length of the cutting teeth has worn down to only 4
mm the chain must be replaced.
Chain drive sprocket
instructions.
Avoid situations where there is a risk of
kickback. See instructions under the
heading Machine′s safety equipment.
The clutch drum is fitted with one of the following drive
sprockets:
Use the recommended protective equipment
and check its condition. See instructions
under the heading General working
instructions.
A Spur sprocket (the chain sprocket is welded on the drum)
B Rim sprocket (replaceable)
Check that all the chain saw safety features
are working. See instructions under the
headings General working instructions and
General safety precautions.
Regularly check the degree of wear on the drive sprocket.
Replace if wear is excessive. Replace the drive sprocket
whenever you replace the chain.
How to avoid kickback
WARNING! Kickback can happen very
suddenly and violently; kicking the chain
saw, bar and chain back at the user. If this
happens when the chain is moving it can
cause very serious, even fatal injuries. It is
vital you understand what causes kickback
and that you can avoid it by taking care and
using the right working technique.
Bar
!
Check regularly:
•
Whether there are burrs on the edges of the bar. Remove
these with a file if necessary.
What is kickback?
The word kickback is used to describe the sudden reaction
that causes the chain saw and bar to jump off an object when
the upper quadrant of the tip of the bar, known as the kickback
zone, touches an object.
•
Whether the groove in the bar has become badly worn.
Replace the bar if necessary.
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SAFETY INSTRUCTIONS
Kickback always occurs in the cutting plane of the bar.
4
Never use the chain saw above shoulder height and try
Normally the chain saw and bar are thrown backwards and
upwards towards the user. However, the chain saw may move
in a different direction depending on the way it was being used
when the kickback zone of the bar touched the object.
not to cut with the tip of the bar. Never use the chain saw
one-handed!
5
You must have a steady stance in order to have full control
over the chain saw. Never work standing on a ladder, in a
tree or where you do not have firm ground to stand on.
Kickback only occurs if the kickback zone of the bar touches
an object.
General rules
1
If you understand what kickback is and how it happens
then you can reduce or eliminate the element of surprise.
By being prepared you reduce the risk.Kickback is usually
quite mild, but it can sometimes be very sudden and
violent.
6
7
Always use a fast cutting speed, i.e. full throttle.
Take great care when you cut with the top edge of the bar,
i.e. when cutting from the underside of the object. This is
known as cutting on the push stroke. The chain tries to
push the chain saw back towards the user.
2
Always hold the chain saw firmly with your right hand on
the rear handle and your left hand on the front handle.
Wrap your fingers and thumbs around the handles.You
should use this grip whether you are right-handed or left-
handed.This grip minimises the effect of kickback and lets
you keep the chain saw under control.
Do not let go of the handles!
Unless the user resists this pushing force there is a risk
that the chain saw will move so far backwards that only the
kickback zone of the bar is in contact with the tree, which
will lead to a kickback.
3
Most kickback accidents happen during limbing. Make
sure you are standing firmly and that there is nothing in
the way that might make you trip or lose your balance.
Lack of concentration can lead to kickback if the kickback
zone of the bar accidentally touches a branch, nearby tree
or some other object.
Cutting with the bottom edge of the bar, i.e. from the top
of the object downwards, is known as cutting on the pull
stroke. In this case the chain saw pulls itself towards the
tree and the front edge of the chain saw body rests
naturally on the trunk when cutting. Cutting on the pull
stroke gives the operator better control over the chain saw
and the position of the kickback zone.
English – 15
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SAFETY INSTRUCTIONS
8
Follow the instructions on sharpening and maintaining
Before use:
your bar and chain. When you replace the bar and chain
use only combinations that are recommended by us. See
instructions under the headings Cutting equipment and
Technical data.
WARNING! The risk of kickback is increased
if you use the wrong cutting equipment or a
,
!
chain that is not sharpened correctly.The
wrong combination of bar and chain can
increase the risk of kickback!
1
Check that the chain brake works correctly and is not
damaged. See the instructions under the heading
Checking the chain brake.
General safety precautions
2
3
Check that the rear right hand guard is not damaged.
•
Chain saws are designed solely for cutting wood.The only
accessories you may use with this engine unit are the
combinations of bars and chains we recommend in the
Technical data section.
Check that the throttle lock works correctly and is not
damaged.
4
Check that the start and stop switch works correctly and
is not damaged.
•
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.
5
6
Check that all handles are free from oil.
Check that the anti vibration system works and is not
damaged.
7
8
9
Check that the muffler is securely attached and not
damaged.
Check that all parts of the chain saw are tightened
correctly and that they are not damaged or missing.
Check that the chain catcher is in place and not damaged.
WARNING! Running an engine in a confined
or badly ventilated area can result in death
Starting
!
due to asphyxiation or carbon monoxide
poisoning.
WARNING! Long term inhalation of the
engine’s exhaust fumes, chain oil mist and
dust from sawdust can represent a health
risk.
!
•
•
•
Wear personal protective equipment. See instructions
under the heading Personal protective equipment.
•
•
Never start a chain saw unless the bar, chain and all
covers are fitted correctly.
Never use a machine that has been modified in any way
from its original specification.
The chain brake must be engaged when the chain saw is
started. See the instructions under the heading Start.
Never air drop start the chain saw. This method is
extremely dangerous, as it is easy to lose control of the
chain saw. See the instructions under the heading Start.
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.
•
Never use any accessories other than those
recommended in this manual. See instructions under the
headings Cutting equipment and Technical data.
WARNING! The risk of accident is increased
if you use the wrong cutting equipment or a
chain that is not sharpened correctly. Using
the wrong combination of bar and chain can
increase the risk of accidents.
•
•
Never start a chain saw unless the bar, chain and clutch
cover are fitted correctly. See instructions under the
heading Assembly.
!
Never start the machine indoors. Exhaust fumes can be
dangerous if inhaled.
16 – English
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SAFETY INSTRUCTIONS
•
Observe your surroundings and make sure that there is no
risk of people or animals coming into contact with the
cutting equipment.
Transport and storage
•
Always store the chain saw and fuel so that there is no risk
of leakages or fumes coming into contact with sparks or
naked flames from electrical equipment, electric motors,
relays/switches, boilers and the like.
•
•
Always store fuel in an approved container designed for
that purpose.
For longer periods of storage or for transport of the chain
saw, the fuel and chain oil tanks should be emptied. Ask
where you can dispose of waste fuel and chain oil at your
local petrol station.
•
•
Ensure the machine is cleaned and that a complete
service is carried out before long-term storage.
•
Place the chain saw on the ground and hold the rear
handle down with your right foot. Grasp the front handle
firmly using your left hand. Make sure the chain saw is
steady and the chain is not touching the ground or other
objects.Then grasp the starter handle with your right hand
and pull the starter cord. Never twist the starter cord
around your hand.
The transport guard must always be fitted to the cutting
attachment when the machine is being transported or in
storage.
General working instructions
WARNING! This section describes basic
safety rules for using a chain saw.This
information is never a substitute for
!
professional skills and experience. If you get
into a situation where you feel unsafe, stop
and seek expert advice. Contact your chain
saw dealer, service agent or an experienced
chain saw user. Do not attempt any task that
you feel unsure of!
Fuel safety
Before using a chain saw you must understand the effects of
kickback and how to avoid them. See instructions under the
heading How to avoid kickback.
WARNING! Fuel and fuel vapour are highly
Before using a chain saw you must understand the difference
between cutting with the top and bottom edges of the bar.See
instructions under the heading How to avoid kickback.
flammable.Take care when handling fuel and
chain oil. Be aware of the risks of fire,
explosion and those associated with
inhalation.
!
Basic safety rules
•
•
Never refuel the machine while the engine is running.
•
Look around you:
Make sure there is plenty of ventilation when refuelling or
mixing fuel (petrol and 2-stroke oil).
-
To ensure that people, animals or other things cannot
affect your control of the machine.
•
Move the machine at least 3 m from the refuelling point
before starting it.
-
To make sure that none of the above might come
within reach of your saw or be injured by falling trees.
•
Never start the machine:
Follow the instructions above, but do not use a chain saw in a
situation where you cannot call for help in case of an accident.
1
If you have spilt fuel or chain oil on the machine.Wipe
off the spillage and allow remaining fuel to evaporate.
•
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.
2
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.
English – 17
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SAFETY INSTRUCTIONS
•
Take great care when removing small branches and avoid
Basic cutting technique
cutting bushes (i.e. cutting many small branches at the
same time). Small branches can be grabbed by the chain
and thrown back at you, causing serious injury.
WARNING! Never use a chain saw by holding
it with one hand. A chain saw is not safely
controlled with one hand; you can cut
yourself. Always have a secure, firm grip
around the handles with both hands.
!
General
•
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.
•
•
Always use full throttle when cutting!
Reduce the speed to idle after every cut (running the
engine for too long at full throttle without any load, i.e.
without any resistance from the chain during cutting, can
lead to serious engine damage).
•
•
Cutting from above = Cutting on the pull stroke.
Cutting from below = Cutting on the push stroke.
Cutting on the push stroke increases the risk of kickback. See
instructions under the heading How to avoid kickback.
Terms
•
Take the utmost care when cutting through branches or
logs that are in tension. A log or branch that is in tension
can suddenly spring back into its natural position before or
after you cut it. If you stand on the wrong side or start
cutting in the wrong place it may strike you or your chain
saw, so that you lose control. Both situations could cause
serious injury.
Cutting = General term for cutting through wood.
Limbing = Cutting branches off a felled tree.
Splitting = When the object you are cutting breaks off before
the cut is complete.
There are five important factors you should
consider before making a cut:
1
Make sure the cutting equipment will not jam in the cut.
2
Make sure the object you are cutting will not split.
•
Before moving your chain saw switch off the engine and
lock the chain using the chain brake. Carry the chain saw
with the bar and chain pointing backwards. Fit a guard to
the bar before transporting the chain saw or carrying it for
any distance.
3
Make sure the chain will not strike the ground or any other
object during or after cutting.
4
5
Is there a risk of kickback?
•
Never put a chain saw down while the engine is running
unless you have it in clear view and the chain brake is on.
Switch the engine off before leaving your chain saw for
any length of time.
Do the conditions and surrounding terrain affect how
safely you can stand and move about?
18 – English
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SAFETY INSTRUCTIONS
Two factors decide whether the chain will jam or the object
Start by cutting from below (about 1/3 of the way through).
that you are cutting will split: the first is how the object is
supported before and after cutting, and the second is whether
it is in tension.
In most cases you can avoid these problems by cutting in two
stages;from the top and from the bottom.You need to support
the object so that it will not trap the chain or split during
cutting.
Finish by cutting from above so that the two cuts meet.
WARNING! If the chain jams in the cut: stop
the engine! Don’t try to pull the chain saw
free. If you do you may be injured by the
chain when the chain saw suddenly breaks
free. Use a lever to open up the cut and free
the chain saw.
!
The log is supported at both ends. There is a high risk that
the chain will jam.
The following instructions describe how to handle the
commonest situations you are likely to encounter when using
a chain saw.
Cutting
The log is lying on the ground. There is little risk of the
chain jamming or the object splitting. However there is a risk
that the chain will touch the ground when you finish the cut.
Start by cutting from above (about 1/3 of the way through).
Cut all the way through the log from above. Avoid letting the
chain touch the ground as you finish the cut. Maintain full
throttle but be prepared for what might happen.
Finish by cutting from below so that the two cuts meet.
Limbing
When limbing thick branches you should use the same
approach as for cutting.
Cut difficult branches piece by piece.
If it is possible (can you turn the log?) stop cutting about 2/3
of the way through the log.
2
1
3
Turn the log and finish the cut from the opposite side.
The log is supported at one end. There is a high risk that it
will split.
English – 19
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SAFETY INSTRUCTIONS
Tree felling technique
WARNING! During critical felling operations,
hearing protectors should be lifted
immediately when sawing is completed so
that sounds and warning signals can be
heard.
!
WARNING! It takes a lot of experience to fell
a tree. Inexperienced users of chain saws
should not fell trees. Do not attempt any task
that you feel unsure of!
!
Clearing the trunk and preparing your retreat
Safe distance
Remove any branches that are in the way.To do this it is best
to work from the top down and keep the trunk between you
and the chain saw. Never limb above shoulder height.
The safe distance between a tree that is to be felled and
anyone else working nearby is at least 2 1/2 tree lengths.
Make sure that no-one else is in this ”risk zone” before or
during felling.
Remove any undergrowth from the base of the tree and check
the area for obstacles (stones, branches, holes, etc.) so that
you have a clear path of retreat when the tree starts to fall.
Your path of retreat should be roughly 135 degrees away from
the intended felling direction.
Felling direction
The aim is to fell the tree in a position where you can limb and
cross-cut the log as easily as possible.You want it to fall in a
location where you can stand and move about safely. The
main point to avoid is letting the tree fall onto another tree.
See instructions under the heading Freeing a tree that has
fallen badly.
Felling
Felling is done using three cuts.First you make the directional
cuts, which consist of the top cut and the bottom cut, then you
finish with the felling cut. By placing these cuts correctly you
can control the felling direction very accurately.
Once you have decided which way you want the tree to fall
you must judge which way the tree would fall naturally.
Several factors affect this:
Directional cuts
•
•
•
•
•
Lean of the tree
Bend
To make the directional cuts you begin with the top cut. Stand
to the right of the tree and cut on the pull stroke.
Wind direction
Arrangement of branches
Weight of snow
Next make the bottom cut so that it finishes exactly at the end
of the top cut.
You may find you are forced to let the tree fall in its natural
direction because it is impossible or dangerous to try to make
it fall in the direction you first intended.
The directional cuts should run 1/4 of the diameter through
the trunk and the angle between the top cut and bottom cut
should be 45°.
Another very important factor, which does not affect the felling
direction but does affect your safety, is to make sure the tree
has no damaged or dead branches that might break off and
hit you during felling.
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SAFETY INSTRUCTIONS
The line where the two cuts meet is called the directional cut
line. This line should be perfectly horizontal and at right
angles (90°) to the chosen felling direction.
When the felling cut and directional cut are complete the tree
should start to fall by itself or with the aid of a felling wedge or
breaking bar.
Felling cut
The felling cut is made from the opposite side of the tree and
it must be perfectly horizontal. Stand on the left side of the
tree and cut on the pull stroke.
We recommend that you use a bar that is longer than the
diameter of the tree, so that you can make the felling cut and
directional cuts with single cutting strokes. See the Technical
data section to find out which lengths of bar are
recommended for your saw.
Make the felling cut about 3-5 cm (1.5-2 inches) above the
bottom directional cut.
There are methods for felling trees with a diameter larger than
the bar length. However these methods involve a much
greater risk that the kickback zone of the bar will come into
contact with the tree.
Set the spike bumper (if one is fitted) just behind the felling
hinge. Use full throttle and advance the chain/bar slowly into
the tree. Make sure the tree does not start to move in the
opposite direction to your intended felling direction. Drive a
wedge or breaking bar into the cut as soon as it is deep
enough.
WARNING! Unless you have special training
we advise you not to fell trees with a
diameter larger than the bar length of your
saw!
!
Finish the felling cut parallel with the directional cut line so
that the distance between them is at least 1/10 of the trunk
diameter. The uncut section of the trunk is called the felling
hinge.
Limbing
WARNING! Most kickback accidents happen
during limbing! Pay close attention to the
position of the kickback zone of the bar
when you are limbing branches that are in
tension!
!
Make sure that you can stand and move about safely.Work on
the left side of the trunk. Work as close as possible to the
chain saw for maximum control. If possible, let the weight of
the chain saw rest on the trunk.
The felling hinge controls the direction that the tree falls in.
All control over the felling direction is lost if the felling hinge is
too narrow or non-existent, or if the directional cuts and felling
cut are badly placed.
Keep the trunk between you and the chain saw as you move
along the trunk.
Cutting the trunk into logs
See instructions under the heading Basic cutting technique.
English – 21
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SAFETY INSTRUCTIONS
Freeing a tree that has fallen badly
Freeing a ”trapped tree”
It is very dangerous to remove a trapped tree and there is high
accident risk.
The safest method is to use a winch.
•
•
Tractor-mounted
Portable
Cutting trees and branches that are in tension
Preparations:
Work out which side is in tension and where the point of
maximum tension is (i.e. where it would break if it was bent
even more).
Decide which is the safest way to release the tension and
whether you are able to do it safely. In complicated situations
the only safe method is to put aside your chain saw and use
a winch.
General advice:
Position yourself so that you will be clear of the tree or branch
when the tension is released.
Make one or more cuts at or near the point of maximum
tension. Make as many cuts of sufficient depth as necessary
to reduce the tension and make the tree or branch break at
the point of maximum tension.
Never cut straight through a tree or branch that is in
tension!
22 – English
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WHAT IS WHAT?
Jonsered XXX
XXXX
XXXXXXX
Jonsered
Huskvarna, SWEDEN
J
O
N
S
E
R
E
D
S
E
R
V
I
C
E
What is what on the chain saw?
1
2
3
4
5
6
7
8
9
Cylinder cover
16 Spike bumper
Front handle
17 Chain catcher (Catches chain if it jumps or breaks.)
18 Clutch cover
Front hand guard
Starter
19 Right hand guard (Protects right hand if chain breaks or
jumps.)
Chain oil tank
20 Throttle control
Starter handle
21 Throttle lock (Prevents accidental operation of throttle
control.)
Adjuster screws, carburettor
Choke control/Start throttle lock
Rear handle
22 Decompression valve
23 Combination spanner
24 Chain tensioning screw
25 Operator′s manual
10 Stop switch (Ignition on/off switch.)
11 Fuel tank
12 Muffler
26 Bar guard
13 Bar tip sprocket
14 Chain
27 Switch for heated handle (CS 2171W)
28 Warning decal
15 Bar
English – 23
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ASSEMBLY
Tension the chain by turning the chain tensioning screw
Fitting the bar and chain
clockwise using the combination spanner. The chain should
be tensioned until it does not sag from the underside of the
bar.
WARNING! Always wear gloves, when
working with the chain.
!
Check that the chain brake is in disengaged position by
moving the front hand guard towards the front handle.
The chain is correctly tensioned when it does not sag from the
underside of the bar, but can still be turned easily by hand.
Hold up the bar tip and tighten the bar nuts with the
combination spanner.
Remove the bar nuts and remove the clutch cover (chain
brake). Take off the transportation ring (A).
When fitting a new chain, the chain tension has to be checked
frequently until the chain is run-in. Check the chain tension
regularly. A correctly tensioned chain ensures good cutting
performance and long life.
Fit the bar over the bar bolts. Place the bar in its rearmost
position. Place the chain over the drive sprocket locate it in
the groove on the bar. Begin on the top edge of the bar.
Fitting a spike bumper
To fit a spike bumper – contact your service agent.
Make sure that the edges of the cutting links are facing
forward on the top edge of the bar.
Fit the clutch cover and locate the chain adjuster pin in the
hole in the bar. Check that the drive links of the chain fit
correctly over the drive sprocket and that the chain is correctly
located in the groove in the bar. Tighten the bar nuts finger
tight.
24 – English
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FUEL HANDLING
Mixing ratio
Fuel
For engines up to 80 cc: 01:50 (2%)
For engines over 80 cc: 01:33 (3%)
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.
Two-stroke oil, litre
Petrol, litre
2% (1:50)
0,10
3% (1:33)
5
0,15
0,30
0,45
0,60
10
15
20
0,20
WARNING! Always ensure there is adequate
0,30
ventilation when handling fuel.
!
0,40
Mixing
Petrol
•
Always mix the petrol and oil in a clean container intended
for fuel.
•
Use good quality unleaded or leaded petrol. Engines
equipped with catalytic converters must be run on
unleaded fuel mixtures.
•
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.
•
The lowest recommended octane grade is RON 90. If you
run the engine on a lower octane grade than RON 90 so-
called knocking can occur.This gives rise to a high engine
temperature and increased bearing load, which can result
in serious engine damage.
•
Mix (shake) the fuel mixture thoroughly before filling the
machine’s fuel tank.
•
When working with continuous high revs (e.g. limbing) a
higher octane is recommended.
Environment fuel
JONSERED recommends the use of alkylate fuel, either
Aspen two-stroke fuel or environment fuel for four-stroke
engines blended with two-stroke oil as set out below. Note
that carburettor adjustment may be necessary when
changing the type of fuel (see the instructions under the
heading Carburettor).
Running-in
Avoid running at a too high speed during the first 10 hours.
•
•
Do not mix more than one month’s supply of fuel at a time.
Two-stroke oil
If the machine is not used for some time the fuel tank
should be emptied and cleaned.
•
Always use JONSERED two-stroke oil, which is specially
adapted for our two-stroke engines.
•
JONSERED provides two stroke oils adapted for different
application areas and climates. Please contact your
dealer for information about the best options for your
product and area of application.
•
•
Never use two-stroke oil intended for water-cooled
outboard engines, sometimes referred to as outboard oil.
Never use oil intended for four-stroke engines.
English – 25
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FUEL HANDLING
Chain oil
Fuelling
•
The chain lubrication system is automatic and we
recommend the use of special oil (chain oil) with good
WARNING!Taking the following precautions,
will lessen the risk of fire:
adhesion characteristics.
!
Do not smoke or place hot objects near fuel.
Always shut off the engine 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.
•
•
•
•
In countries where no special chain oil is available, EP90
transmission oil can be used.
Clean the area around the fuel cap. Clean the fuel and chain
oil tanks regularly. The fuel filter must be replaced at least
once a year. Contamination in the tanks causes malfunction.
Make sure the fuel is well mixed by shaking the container
before refuelling.The capacities of the chain oil tank and fuel
tank are carefully matched.You should therefore always fill
the chain oil tank and fuel tank at the same time.
Never use waste oil. This results in damage to the oil
pump, the bar and the chain.
It is important to use oil of the right grade (suitable
viscosity range) to suit the air temperature.
In temperatures below 0°C (32°F) some oils become too
viscous. This can overload the oil pump and result in
damage to the oil pump components.
•
Contact your service agent when choosing chain oil.
Min 3 m
(10ft)
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STARTING AND STOPPING
Warm engine
Starting and stopping
WARNING! Note the following before
starting:
!
Never start a chain saw unless the bar, chain
and all covers are fitted correctly. Otherwise
the clutch can come loose and cause
personal injuries.
Use the same procedure as for starting a cold engine but
without setting the choke control in the choke position. The
correct choke/start throttle setting is obtained by moving the
choke control to the choke position and then pushing it in
again.
Always move the machine away from the
refuelling area before starting.
Place the machine on firm ground. Make
sure you have a secure footing and that the
chain cannot touch anything.
Keep people and animals well away from the
working area.
Starting
Cold engine
Grip the front handle with your left hand. Hold the chain saw
on the ground by placing your right foot through the rear
handle. Pull the starter handle with your right hand and pull
out the starter cord slowly until you feel a resistance (as the
starter pawls engage) then pull firmly and rapidly.Never twist
the starter cord around your hand.
Starting: The chain brake must be engaged when the chain
saw is started. Activate the brake by moving the front hand
guard forwards.
Ignition: Slide the ignition switch to the left.
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.
Choke: Set the choke control in the choke position.
Start throttle: The correct choke/start throttle setting is
obtained by moving the control to the choke position.
Push in the choke control as soon as the engine fires and
keep pulling until the engine starts. When the engine starts,
quickly apply full throttle; the throttle start lock will
automatically disengage.
If the machine is fitted with a decompression valve (A): Press
the valve to reduce the pressure in the cylinder and make
starting easier.You should always use the decompression
valve when starting the machine. Once the machine has
started the valve will automatically return to its original
setting.
As the chain brake is still engaged the speed of the engine
must be set to idling as soon as possible, this is achieved by
quickly disengaging the throttle lock. This prevents
unnecessary wear to the clutch, clutch drum and brake band.
English – 27
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STARTING AND STOPPING
Reactivate the chain brake by pushing the front hand guard
back towards the front handle.The chain saw is now ready for
use.
Stopping
Stop the engine by switching off the ignition.
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MAINTENANCE
•
The carburettor has three adjustment controls:
Carburettor adjustment
-
-
-
L = Low speed jet
The carburettor can be designed in different ways, depending
on existing environmental and emissions legislation. Some
chain saws are equipped with movement limiters on the
carburettor’s adjuster screws. These limit the adjustment
possibilities to a maximum of a 1/2 turn.
H = High speed jet
T = Idle adjustment screw
H
T
H
L
1/2
1/2
L
•
•
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.
When your chain saw is equipped with a carburettor that
features movement limiters, the carburettor should be
adjusted according to the instructions under the heading
Carburettor with movement limiters.
When your chain saw is equipped with a carburettor that does
not feature movement limiters, the carburettor should be
adjusted according to the instructions under the heading
Carburettor without movement limiters.
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.
H
L
Basic settings and running in
The basic carburettor settings are adjusted during testing at
the factory. Avoid running at a too high speed during the first
10 hours.
CAUTION! If the chain rotates while idling the T-screw
must be turned anti-clockwise until the chain stops.
Contact your servicing dealer (retailer) if you are
uncertain of which type of carburettor your chain saw is
equipped with.
Rec. idle speed: 2700 rpm
WARNING! Contact your servicing dealer, if
the idle speed setting cannot be adjusted so
that the chain stops. Do not use the chain
saw until it has been properly adjusted or
repaired.
!
Carburettor with movement limiters
H
L
Fine adjustment
1/2
1/2
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.
Your Jonsered product has been designed and manufactured
to specifications that reduce harmful exhaust fumes.
Changing the type of fuel
Fine tuning may be required if the chain saw, after changing
the type of fuel, performs differently with regard to starting,
acceleration, maximum speed, etc.
Function, Basic settings, Fine adjustment
WARNING! Do not start the chain saw unless
the bar, chain and clutch cover (chain brake)
are fitted, otherwise the clutch may come
loose and cause personal injury.
Conditions
!
•
Before any adjustments are made the air filter should be
clean and the cylinder cover fitted. Adjusting the
carburettor while a dirty air filter is in use will result in a
leaner mixture next time the filter is cleaned.This can give
rise to serious engine damage.
Function
•
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.
•
•
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. CAUTION!
If the chain rotates while idling the T-screw must be
turned anti-clockwise until the chain stops.
•
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.
•
Place the machine on a flat surface so that the bar points
away from you and so that the bar and chain do not come
into contact with the surface or other objects.
English – 29
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MAINTENANCE
Low speed jet L
Carburettor without movement
limiters
Turn the low speed jet L clockwise until it stops. If the engine
accelerates poorly or idles unevenly, turn the low speed jet L
anticlockwise until good acceleration and idling are achieved.
CAUTION! If the chain rotates while idling the T-screw
must be turned anti-clockwise until the chain stops.
H
L
Fine adjustment of the idle speed T
Adjust the idle speed with the T-screw. If it is necessary to re-
adjust, turn theT-screw clockwise while the engine is running,
until the chain starts to rotate. Then turn anti-clockwise until
the chain stops.When the idle speed is correctly adjusted the
engine should run smoothly in every position and the engine
speed should be safely below the speed at which the chain
starts to rotate.
Function, Basic settings, Fine adjustment
WARNING! Do not start the chain saw unless
the bar, chain and clutch cover (chain brake)
are fitted, otherwise the clutch may come
loose and cause personal injury.
!
WARNING! Contact your servicing dealer, if
the idle speed setting cannot be adjusted so
that the chain stops. Do not use the chain
saw until it has been properly adjusted or
repaired.
!
Function
•
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.
High speed jet H
At the factory the engine is adjusted at sea level. When
working at a high altitude or in different weather
conditions, temperatures and atmospheric humidity, it
may be necessary to make minor adjustments to the high
speed 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.
The carburettor has three adjustment controls:
CAUTION! If the high speed jet is screwed in too far, it
may damage the piston/cylinder.
-
-
-
L = Low speed jet
H = High speed jet
When test run at the factory, the high speed jet is set so that
the engine satisfies the applicable legal requirements at the
same time as achieving maximum performance. The
carburettor’s high speed jet is then locked using a limiter cap
in the fully screwed out position. The limiter cap limits the
potential to adjust the high speed jet to at most half a turn.
T = Idle adjustment screw
H
T
CAUTION! There is an integrated speed governor in the
ignition system that limits the maximum speed to 13600 rpm.
The maximum speed will not exceed 13600 rpm when the
high speed jet is adjusted (screwed in). When the speed
governor is activated, you will get the same sound experience
as when the chain saw 4-cycles.
L
•
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.
To adjust the carburettor correctly you should contact a
mechanic with access to a rev counter.
CAUTION! As the spark is cut off, the rev counter does not
show speeds higher than 13600 rpm.
Basic settings and running in
The basic carburettor settings are adjusted during testing at
the factory.The basic settings are H = 1 turn and L = 1 turn.
To provide the engine’s components with good initial
lubrication (during running in) the carburettor should be set for
a richer fuel mixture for the first 3-4 hours that the chain saw
is in use.To do this, adjust the fast idle speed to 600-700 rpm
below the recommended maximum fast idle speed.
Correctly adjusted carburettor
When the carburettor is correctly adjusted the machine
accelerates without hesitation and 4-cycles a little at full
throttle. It is also important that the chain does not rotate at
idle. If the L-jet is set too lean it may cause starting difficulties
and poor acceleration. If the H-jet is set too lean the machine
will have less power, poor acceleration and could suffer
damage to the engine.
If you are unable to check the fast idle speed using a
tachometer the H-jet should not be set for a leaner mixture
than given in the basic settings.The recommended maximum
fast idle speed must not be exceeded. CAUTION! If the
chain rotates while idling theT-screw must be turned anti-
clockwise until the chain stops.
30 – English
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MAINTENANCE
Fine adjustment
High speed jet H
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.
•
The high speed jet H influences the power and engine
speed of the machine. If the high speed jet is set too rich
(H-jet screwed in too far) the machine will over-rev and
this will damage the engine. Run the machine at full
throttle for about 10 seconds.Then turn the H-jet 1/4 turn
anti-clockwise. Run the machine at full throttle for another
10 seconds or so and listen to the difference in the fast idle
speed. Repeat this procedure with the H-jet turned a
further 1/4 turn anti-clockwise.
The recommended engine speeds are as follows:
Max. fast idle speed, rpm Idle speed, rpm
CS 2165
CS 2171
12500
13500
2700
2700
Conditions
•
Before any adjustments are made the air filter should be
clean and the cylinder cover fitted. Adjusting the
carburettor while a dirty air filter is in use will result in a
leaner mixture next time the filter is cleaned.This can give
rise to serious engine damage.
H
•
You have now run the machine at settings of H = 0, H=+1/
4, H=+1/2 relative to the basic settings. At full throttle the
engine has sounded different for each setting.The H-jet is
correctly adjusted when the machine burbles a little. If the
machine ”screams” then the machine is set too lean. If the
muffler emits a lot of smoke and the machine burbles a lot
then the setting is too rich. Turn the H-jet clockwise until
the setting sounds right
•
•
Carefully turn the L and H-jets clockwise as far as they will
go. Now turn the jets one turn anti-clockwise. The
carburettor is now set to H = 1 and L = 1.
Now start the machine according to the starting
instructions and let it warm up for 10 minutes. CAUTION!
If the chain rotates while idling the T-screw must be
turned anti-clockwise until the chain stops.
•
Place the machine on a flat surface so that the bar points
away from you and so that the bar and chain do not come
into contact with the surface or other objects.
CAUTION! To ensure correct adjustment you should enlist a
qualified mechanic who has access to a tachometer. The
recommended maximum fast idle speed must not be
exceeded.
Low speed jet L
Correctly adjusted carburettor
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.
When the carburettor is correctly adjusted the machine
accelerates without hesitation and 4-cycles a little at full
throttle. It is also important that the chain does not rotate at
idle. If the L-jet is set too lean it may cause starting difficulties
and poor acceleration. If the H-jet is set too lean the machine
will have less power, poor acceleration and could suffer
damage to the engine.
+ 1/4
If both the L and H jets are set too rich it will results in
acceleration problems or too low a working speed.
L
CAUTION! If the chain rotates while idling the T-screw
must be turned anti-clockwise until the chain stops.
Fine adjustment of the idle speed T
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.
WARNING! Contact your servicing dealer, if
the idle speed setting cannot be adjusted so
that the chain stops. Do not use the chain
saw until it has been properly adjusted or
repaired.
!
English – 31
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MAINTENANCE
Changing a broken recoil spring
Starter
WARNING! When the recoil spring is wound
up in the starter housing it is under tension
and can, if handled carelessly, pop out and
cause personal injury. Always be careful
when changing the recoil spring or the
starter cord. Always wear protective
goggles.
!
•
•
Lift off the pulley. See instructions under heading
Changing a broken or worn starter cord.
Remove the recoil spring from inside the pulley by tapping
the pulley lightly with its inside face downwards against a
work bench or the like. If the spring pops out during fitting,
wind it up again, working from the outside in towards
centre.
Changing a broken or worn starter cord
•
Lubricate the recoil spring with light oil. Fit the pulley and
tension the recoil spring.
•
Loosen the screws that hold the starter against the
crankcase and remove the starter.
Fitting the starter
•
Pull out the cord approx. 30 cm and hook it into the notch
in the rim of the pulley. Release the recoil spring by letting
the pulley rotate slowly backwards.
•
To fit the starter, first pull out the starter cord and place the
starter in position against the crankcase. Then slowly
release the starter cord so that the pulley engages with
the pawls.
•
Fit and tighten the screws that hold the starter.
•
Undo the screw in the centre of the pulley and remove the
pulley. Insert and fasten a new starter cord to the pulley.
Wind approx. 3 turns of the starter cord onto the pulley.
Connect the pulley to the recoil spring so that the end of
the spring engages in the pulley. Fit the screw in the
centre of the pulley. Insert the starter cord through the
hole in the starter housing and the starter handle. Make a
secure knot in the end of the starter cord.
Air filter
The air filter must be regularly cleaned to remove dust and dirt
in order to avoid:
•
•
•
•
•
Carburettor malfunctions
Starting problems
Loss of engine power
Unnecessary wear to engine parts.
Excessive fuel consumption.
Clean the air filter daily, or more often in demanding
conditions.
Tensioning the recoil spring
•
Hook the starter cord in the notch in the pulley and turn
the starter pulley about 2 turns clockwise.
•
Remove the air filter after taking off the air filter cover.
When refitting make sure that the air filter seals tightly
against the filter holder. Clean the filter by brushing or
shaking it.
CAUTION! Check that the pulley can be turned at least a
further 1/2 turn when the starter cord is pulled all the way
out.
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MAINTENANCE
•
The filter can be cleaned more thoroughly by washing it in
water and detergent.
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.
CAUTION! The mesh must be replaced if it is damaged. If the
mesh is blocked the machine will overheat and this will cause
damage to the cylinder and piston. Never use a machine with
a muffler that is in poor condition.
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.
Needle bearing lubrication
A JONSERED chain saw can be equipped with different types
of air filter according to working conditions, weather, season,
etc. Contact your dealer for advice.
The clutch drum is fitted with one of the following drive
sprockets:
•
A Spur sprocket (the chain sprocket is welded on the
drum)
Spark plug
•
B Rim sprocket (replaceable)
The spark plug condition is influenced by:
•
•
•
Incorrect carburettor adjustment.
Wrong fuel mixture (too much oil).
A dirty air filter.
Both versions have a needle bearing on the drive shaft, which
has to be greased regularly (once a week).
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting
difficulties.
CAUTION! Use a high-quality bearing grease or engine oil.
•
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.
Adjustment of the oil pump
The oil pump is adjustable. Adjustments are made by turning
the screw using a screwdriver or combination spanner. The
machine is supplied from the factory set to 1 turn open.
Turning the screw clockwise will reduce the oil flow and
turning the screw anti-clockwise will increase the oil flow.
CAUTION! Always use the recommended spark plug type!
Use of the wrong spark plug can damage the piston/cylinder.
Muffler
WARNING! The engine must not be running
when making adjustments.
!
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.
Recommended settings:
Bar -15":
1 turn from the closed position.
2 turns from the closed position.
3 turns from the closed position.
4 turns from the closed position.
Bar 15" -18":
Bar 18" -24":
Bar 24" -:
These recommendations apply to JONSERED chain oil, for
other chain oils increase the oil flow by one step.
English – 33
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MAINTENANCE
Cooling system
Heated handles
(CS 2171W)
On models with the model code W, both the front handle bar
and the rear handle are equipped with electrical heating coils.
These are supplied with electricity from a generator built into
the chain saw.
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
1
2
3
4
5
Air intake on the starter.
Air guide plate.
Fins on the flywheel.
Cooling fins on the cylinder.
Cylinder cover (directs cold air over the cylinder).
5
When the red mark on the switch is visible, the heating is on.
4
3
Electrical carburettor heating
(CS 2171WH)
This machine is equipped with an electronically controlled
carburettor heater.
2
Applications
1
The carburettor heater is used in the following temperature
range: 0ºC or colder. During high humidity, icing of the
carburettor can occur earlier than specified.
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.
The carburettor heater only heats the carburettor when the 3-
way switch is set to position ”II”.
Centrifugal cleaning “Turbo”
Centrifugal cleaning means the following: All air to the
carburettor passes through the starter. Dirt and dust is
centrifuged out by the cooling fan.
The switch is off in position ”0”, supplies current to the handle
heater in position ”I”, supplies current to the carburettor in
position ”II”.
CAUTION! The carburettor heater reaches maximum
temperature after about 3 minutes. It is therefore important
that the machine is not run for longer with the heater switched
on. If the switch is left on for too long the carburettor will
overheat and lead to running problems or starting problems.
IMPORTANT! In order to maintain operation of the centrifugal
cleaning system it must be regularly maintained.
Winter use
During cold weather and under powder snow conditions,
operating problems can arise due to:
•
Clean the air intake to the starter, the fins on the flywheel,
the space around the flywheel, inlet pipe and carburettor
compartment.
•
•
Too low engine temperature.
Icing of the air filter and carburettor.
Special measures are therefore often required:
•
Partly mask the air inlet on the starter to increase the
working temperature of the engine.
IMPORTANT!
Any maintenance other than that described in this manual
must be carried out by your servicing dealer (retailer).
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MAINTENANCE
Below you will find some general maintenance
instructions.
Weekly maintenance
0,5 mm
1
3
2
4
Daily maintenance
1
2
3
8
5
6
7
6
5
4
1
Check that the vibration damping elements are not
damaged.
2
3
4
Lubricate the clutch drum bearing.
7
8
9
File off any burrs from the edges of the bar.
Clean the spark plug. Check that the electrode gap is 0.5
mm.
1
2
Check that the components of the throttle control work
safely. (Throttle lock and throttle control.)
5
Clean the fins on the flywheel. Check the starter and the
recoil spring.
Clean the chain brake and check that it operates safely.
Make sure that the chain catcher is undamaged, and
replace it if necessary.
6
7
8
Clean the cooling fins on the cylinder.
Clean or replace the spark arrestor mesh in the muffler.
Clean the carburettor compartment.
3
4
Clean the air filter. Replace if necessary.
The bar should be turned daily for more even wear. Check
the lubrication hole in the bar, to be sure it is not clogged.
Clean the bar groove. If the bar has a sprocket tip, this
should be lubricated.
Monthly maintenance
1
3
2
5
6
Check that the bar and chain are getting sufficient oil.
Sharpen the chain and check its tension and condition.
Check the drive sprocket for excessive wear and replace
if necessary.
4
7
Clean the air intake on the starter. Check the starter and
starter cord.
5
7
6
8
9
Check that nuts and screws are tight.
Test the stop switch to ensure that it works.
1
2
Check the brake band on the chain brake for wear.
Check the clutch centre, clutch drum and clutch spring for
wear.
3
4
Clean the outside of the carburettor.
Check the fuel filter and the fuel hose. Replace if
necessary.
5
6
7
Clean the inside of the fuel tank.
Clean the inside of the oil tank.
Check all cables and connections.
English – 35
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TECHNICAL DATA
Technical data
CS 2165
CS 2171/WH
Engine
3
Cylinder displacement, cm
Cylinder bore, mm
Stroke, mm
65,1
70,7
48
50
36
36
Idle speed, rpm
2700
3,4/9000
3,4/9000
2700
3,9/9600
3,9/9600
Power, kW/ rpm (Europe)
Power, kW/ rpm (Australia)
Ignition system
Manufacturer of ignition system
Type of ignition system
Spark plug
SEM
CD
SEM
CD
NGK BPMR 7A/
NGK BPMR 7A/
Champion RCJ 7Y
Champion RCJ 7Y
Electrode gap, mm
0,5
0,5
Fuel and lubrication system
Manufacturer/type of carburettor
Walbro HD12B/
Zama C3M-EL2C
Walbro HD6B/
HD12B
Fuel tank capacity, litre
Oil pump capacity at 8,500 rpm, ml/min
Oil tank capacity, litre
Type of oil pump
0,77
0,77
4–20
4–20
0,42
0,42
Automatic
Automatic
Weight
Chain saw without bar or chain, empty tanks, kg
6,0
6,1
W: 6,3
Noise emissions (see note 1)
Sound power level, measured dB(A)
113
114
112
114
Sound power level, guaranteed L
dB(A)
WA
Sound levels (see note 2)
Equivalent sound pressure level at operator’s ear, measured
according to relevant international standards, dB(A)
Europe:
102
104
102
104
Australia:
Vibration levels (see note 3)
2
Front handle, m/s
3,6
5,7
4,6
5,2
2
Rear handle, m/s
Chain/bar
Standard bar length, inch/cm
Recommended bar lengths, inch/cm
Usable cutting length, inch/cm
Chain speed at max. power, m/sec
Pitch, inch/mm
15”/38
15”/38
15-28”/38-70
14-27"/35-69
20,1
15-28”/38-70
14-27"/35-69
21,4
3/8" /9,52
0,058/1,5
7
3/8" /9,52
0,058/1,5
7
Thickness of drive links, inch/mm
Number of teeth on drive sprocket
Note 1: Noise emissions in the environment measured as sound power (L ) in conformity with EC directive 2000/14/EC.
WA
Note 2: Equivalent sound pressure level, according to ISO 7182, is calculated as the time-weighted energy total for noise pressure
levels under various working conditions with the following time distribution: 1/3 idling, 1/3 max. load, 1/3 max. speed.
Note 3: Equivalent vibration level, according to ISO 7505, is calculated as the time-weighted energy total for vibration levels under
various working conditions with the following time distribution: 1/3 idling, 1/3 max. load, 1/3 max. speed.
36 – English
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TECHNICAL DATA
Bar and chain combinations
The following combinations are CE approved.
Bar
Chain
Max. number of teeth on
tip sprocket
Length, inches
Pitch, inch
15
16
18
20
24
28
3/8
3/8
3/8
3/8
3/8
3/8
11T
11T
11T
11T
11T
11T
Jonsered S42
Jonsered S42
Jonsered S42
Jonsered S42
Jonsered S42
Jonsered S42
L
D
D
_
PITCH =
2
English – 37
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TECHNICAL DATA
EC-declaration of conformity
(Applies to Europe only)
Jonsered, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain saws
Jonsered CS 2165, CS 2171 and CS 2171WH from 2002’s serial numbers and onwards (the year is clearly stated in plain text
on the type plate with subsequent serial number), are in conformity with the requirements of the COUNCIL’S DIRECTIVES:
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.
For information relating to noise emissions, see the chapter Technical data. The following standards have been applied:
EN292-2, CISPR 12:1997, EN608.
Notified body: 0404, SMP Svensk Maskinprovning AB, Fyrisborgsgatan 3, SE-754 50 Uppsala, Sweden, has carried out EC
type examination in accordance with the machinery directive’s (98/37/EC) article 8, point 2c. The certificates for EC type
examination in accordance with annex VI, have the numbers: 404/00/734 – CS 2165, 404/00/733 – CS 2171, CS 2171WH.
In addition, SMP, Svensk Maskinprovning AB, Fyrisborgsgatan 3, SE-754 50 Uppsala, Sweden, has certified conformity with
annex V of the Council’s Directive of May 8, 2000 ”relating to the noise emissions in the environment” 2000/14/EC. The
certificates have the numbers: 01/161/030 – CS 2165, 01/161/029 – CS 2171, CS 2171WH.
The supplied chain saw conforms to the example that underwent EC type examination.
Huskvarna 12 September 2002
Bo Andréasson, Development manager
´®z*x}T¶6U¨
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1088935-26
´®z*x}T¶6U¨
2004-06-30
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