Operator′s manual
Please read the operator’s manual carefully and
make sure you understand the instructions
before using the machine.
CS 2139T
Download from Www.Somanuals.com. All Manuals Search And Download.
KEY TO SYMBOLS
Symbols on the machine:
Symbols in the operator’s manual:
WARNING! Chain saws can be
dangerous! Careless or incorrect use can
result in serious or fatal injury to the
operator or others.
Switch off the engine by moving the stop
switch to the STOP position before carrying
out any checks or maintenance.
Please read the operator’s manual
carefully and make sure you understand
the instructions before using the machine.
Working position
Always wear:
Choke
•
•
•
Approved protective helmet
Approved hearing protection
Protective goggles or a visor
Always wear approved protective gloves.
Regular cleaning is required.
Visual check.
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 chapter Technical data and on
label.
Never let the guide bar tip come in contact
with any object.
Protective goggles or a visor must be worn.
Refuelling.
WARNING! Kickback may occur when the
nose or tip of the guide bar touches an object,
and cause a lightning fast reverse reaction,
kicking the guide bar up and towards the
operator. May cause serious personal injury.
Filling with oil and adjusting oil flow.
This saw should only be used by
persons who are specially trained in
tree maintenance work. See
operator’s manual!
The chain brake must be engaged when the
chain saw is started.
Other symbols/decals on the machine refer to special
certification requirements for certain markets.
WARNING! Kickback may occur when the
nose or tip of the guide bar touches an object,
and cause a lightning fast reverse reaction,
kicking the guide bar up and towards the
operator. May cause serious personal injury.
2 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
CONTENTS
Contents
KEY TO SYMBOLS
Symbols on the machine: ..............................................
Symbols in the operator’s manual: ................................
CONTENTS
Contents .......................................................................
INTRODUCTION
5
Dear Customer, .............................................................
WHAT IS WHAT?
What is what on the chain saw? ...................................
GENERAL SAFETY PRECAUTIONS
Before using a new chain saw ......................................
Important .......................................................................
Always use common sense ..........................................
Personal protective equipment ......................................
Machine′s safety equipment .........................................
Cutting equipment ......................................................... 10
ASSEMBLY
Fitting the bar and chain ............................................... 15
FUEL HANDLING
Fuel ............................................................................... 16
Fuelling ......................................................................... 17
Fuel safety .................................................................... 17
STARTING AND STOPPING
Starting and stopping .................................................... 18
WORKING TECHNIQUES
Before use: .................................................................... 20
General working instructions ........................................ 20
How to avoid kickback ................................................... 26
MAINTENANCE
General ......................................................................... 27
Carburettor adjustment ................................................. 27
Checking, maintaining and servicing chain saw safety
equipment ..................................................................... 28
Muffler ........................................................................... 29
Starter ........................................................................... 30
Air filter .......................................................................... 31
Spark plug ..................................................................... 31
Lubricating the bar tip sprocket ..................................... 31
Adjustment of the oil pump ........................................... 32
Cooling system ............................................................. 32
Maintenance schedule .................................................. 33
TECHNICAL DATA
Technical data ............................................................... 34
Bar and chain combinations ......................................... 35
Saw chain filing and file gauges .................................... 35
EC-declaration of conformity ......................................... 35
English – 3
Download from Www.Somanuals.com. All Manuals Search And Download.
INTRODUCTION
Dear Customer,
Congratulations on your choice to buy a Jonsered product!
We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very long time to
come. The purchase of one of our products gives you access to professional help with repairs and service whenever this may be
necessary. If the retailer who sells your machine is not one of our authorised dealers, ask for the address of your nearest service
workshop.
It is our wish that you will be satisfied with your product and that it will be your companion for a long time. Think of this operator′s
manual as a valuable document.By following its′ content (using, service, maintenance etc) the life span and the second-hand value
of the machine can be extended. If you will sell this machine, make sure that the buyer will get the operator′s manual.
Good luck on using your Jonsered machine!
Jonsered has a policy of continuous product development and therefore reserves the right to modify the design and appearance
of products without prior notice.
4 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
WHAT IS WHAT?
What is what on the chain saw?
1
2
3
4
5
6
7
8
Filter cover
15 Chain
Front handle
16 Bar
Front hand guard
Starter
17 Spike bumper
18 Chain catcher
Chain oil tank
Starter handle
Adjuster screws carburettor
19 Clutch cover with built-in chain brake.
20 Oil pump adjustment screw
21 Throttle control
Stop and choke control: Ignition on/off switch Choke
control/Start throttle lock Working position
22 Throttle lockout
23 Combination spanner
24 Chain tensioning screw
25 Operator′s manual
26 Bar guard
9
Rear handle
10 Spark plug cap
11 Fuel tank
12 Muffler
27 Fixing eye for safety line
28 Information and warning decal
29 Product and serial number plate
13 Bar tip sprocket
14 Air purge
English – 5
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
Before using a new chain saw
Important
•
Please read this manual carefully.
IMPORTANT!
•
Check that the cutting equipment is correctly fitted and
adjusted. See instructions under the heading Assembly.
The machine is only designed for cutting wood.
You should only use the saw with the bar and chain
combinations we recommend in the chapter Technical data.
•
•
Refuel and start the chain saw. See the instructions under
the headings Fuel Handling and Starting and Stopping.
Never use the machine if you are fatigued, while under the
influence of alcohol or drugs, medication or anything that
could affect your vision, alertness, coordination or
judgement.
Do not use the chain saw until sufficient chain oil has
reached the chain. See instructions under the heading
Lubricating cutting equipment.
Wear personal protective equipment. See instructions
under the heading Personal protective equipment.
•
Long-term exposure to noise can result in permanent
hearing impairment. So always use approved hearing
protection.
Do not modify this product or use it if it appears to have
been modified by others.
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.
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! 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.
CAUTION! Always wear protective glasses or a face visor to
reduce the risk of injury from thrown objects. A chain saw is
capable of throwing objects, such as wood chips, small
pieces of wood, etc, at great force.This can result in serious
injury, especially to the eyes.
!
WARNING! Running an engine in a confined
or badly ventilated area can result in death
due to asphyxiation or carbon monoxide
WARNING! The inside of the muffler contain
chemicals that may be carcinogenic. Avoid
contact with these elements in the event of a
damaged muffler.
!
!
poisoning.
WARNING! Faulty cutting equipment or the
wrong combination of bar and saw chain
increases the risk of kickback! Only use the
bar/saw chain combinations we recommend,
and follow the filing instructions. See
instructions under the heading Technical
data.
WARNING! Long term inhalation of the
engine’s exhaust fumes, chain oil mist and
dust from sawdust can represent a health
risk.
!
!
WARNING! The ignition system of this
machine produces an electromagnetic field
during operation.This field may under some
Always use common sense
!
It is not possible to cover every conceivable situation you can
face when using a chain saw. Always exercise care and use
your common sense. Avoid all situations which you consider
to be beyond your capability. If you still feel uncertain about
operating procedures after reading these instructions, you
should consult an expert before continuing. Do not hesitate to
contact your dealer or us if you have any questions about the
use of the chain saw. We will willingly be of service and
provide you with advice as well as help you to use your chain
saw both efficiently and safely. Attend a training course in
circumstances interfere with pacemakers.To
reduce the risk of serious or fatal injury, we
recommend persons with pacemakers to
consult their physician and the pacemaker
manufacturer before operating this machine.
6 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
chain saw usage if possible.Your dealer, forestry school or
your library can provide information about which training
materials and courses are available.
Generally clothes should be close-fitting without restricting
your freedom of movement.
IMPORTANT! Sparks can come from the muffler, the bar
and chain or other sources. Always have fire extinguishing
tools available if you should need them. Help prevent forest
fires.
′
Machine s safety equipment
In this section the machine’s safety features and their function
are explained. For inspection and maintenance see
instructions under the heading Checking, maintaining and
servicing chain saw safety equipment. See instructions under
the heading, What is what?, to find where these parts are
located 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.
Work is constantly in progress to improve the design and
technology - improvements that increase your safety and
efficiency. Visit your dealer regularly to see whether you can
benefit from new features that have been introduced.
WARNING! Never use a machine with
defective safety components. Safety
equipment must be inspected and
maintained. See instructions under the
heading Checking, maintaining and
Personal protective equipment
!
WARNING! Most chain saw accidents
servicing chain saw safety equipment. If
your machine does not pass all the checks,
take the saw to a servicing dealer for repair.
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.
Chain brake and front hand guard
Your chain saw is equipped with a chain brake that is
designed to stop the chain 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.
•
•
•
•
•
•
•
•
Approved protective helmet
Hearing protection
Protective goggles or a visor
Gloves with saw protection
•
•
The chain brake (A) can either be activated manually (by
your left hand) or automatically by the inertia release
mechanism.
Trousers with saw protection
Boots with saw protection, steel toe-cap and non-slip sole
Always have a first aid kit nearby.
Fire Extinguisher and Shovel
The brake is applied when the front hand guard (B) is
pushed forwards.
B
B
A
English – 7
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
•
This movement activates a spring-loaded mechanism that
•
The way the chain brake is activated, either manually or
tightens the brake band (C) around the engine drive
system (D) (clutch drum).
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.
If you get a violent kickback while the kickback zone of the
bar is farthest away from you the chain brake is designed
to be activated by the inertia in the kickback direction.
•
The front hand guard is not designed solely to activate the
chain brake. Another important feature is that it reduces
the risk of your left hand hitting the chain if you lose grip of
the front handle.
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.
•
The chain brake must be engaged when the chain saw is
started to prevent the saw chain from rotating.
•
In the felling position the left hand is in a position that
makes manual activation of the chain brake impossible.
With this type of grip, that is when the left hand is placed
so that it cannot affect the movement of the front hand
guard, the chain brake can only be activated by the inertia
action.
•
Use the chain brake as a ”parking brake” when starting
and when moving over short distances, to reduce the risk
of moving chain accidentally hitting your leg or anyone or
anything close by.
Will my hand always activate the chain
brake during a kickback?
•
To release the chain brake pull the front hand guard
backwards, towards the front handle.
No. It takes a certain force to move the hand guard forward. If
your hand only lightly touches the front guard or slips over it,
the force may not be enough to trigger the chain brake.You
should also maintain a firm grip of the chain saw handles
while working.If you do and experience a kickback, your hand
may never leave the front handle and will not activate the
chain brake, or the chain brake will only activate after the saw
has swung around a considerable distance. In such
instances, the chain brake might not have enough time to stop
the saw chain before it touches you.
•
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.
There are also certain positions in which your hand cannot
reach the front hand guard to activate the chain brake; for
example, when the saw chain is held in felling position.
8 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
Will my inetria activated chain brake
Vibration damping system
always activate during kickback in the
event of a kickback?
Your machine is equipped with a vibration damping system
that is designed to minimize vibration and make operation
easier.
No. First your brake must be in working order. Second the
kickback must be strong enough to activate the chain brake.
If the chain brake is too sensitive it would activate all the time
which would be a nuisance.
Will my chain brake always protect me
from injury in the event of a kickback?
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.
No. First, the chain brake must be in working order to provide
the intended protection. Second, it must be activated during
the kickback as described above to stop the saw chain.Third,
the chain brake may be activated but if the bar is too close to
you the brake might not have enough time to slow down and
stop the chain before the chain saw hits you.
Only you and proper working technique can eliminate
kickback and its danger.
Throttle lockout
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.
The throttle lockout is designed to prevent accidental
operation of the throttle control. When you press the lock (A)
(i.e.when you grasp the handle) it releases the throttle control
(B). When you release the handle the throttle control and the
throttle lockout both move back to their original positions.This
arrangement means that the throttle control is automatically
locked at the idle setting.
A
WARNING! Overexposure to vibration can
lead to circulatory damage or nerve damage
in people who have impaired circulation.
!
Contact your doctor if you experience
symptoms of overexposure to vibration.
Such symptoms include numbness, loss of
feeling, tingling, pricking, pain, loss of
strength, changes in skin colour or
condition.These symptoms normally appear
in the fingers, hands or wrists.These
symptoms may be increased in cold
temperatures.
B
Chain catcher
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).
Stop switch
Use the stop switch to switch off the engine.
English – 9
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
•
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.
The muffler is designed to keep noise levels to a minimum and
to direct exhaust fumes away from the user.
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!
!
•
Maintain the correct depth gauge setting! Follow our
instructions and use the recommended depth gauge
clearance. Too large a clearance increases the risk of
kickback.
In areas with a hot, dry climate there is a high risk of fires.
These areas are sometimes subject to government rules
requiring among other things the muffler must be equipped
with an approved type of spark arrestor mesh.
•
•
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.
CAUTION! The muffler gets very hot during and after use.
This also applies during idling. Be aware of the fire hazard,
especially when working near flammable substances and/
or vapours.
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.
WARNING! Never use a saw without a
muffler, or with a damaged muffler. A
damaged muffler may substantially increase
!
the noise level and the fire hazard. Keep fire
fighting equipment handy. If a spark arrestor
screen is required in your area, never use
the saw without or with a broken spark
arrestor screen.
Cutting equipment designed to reduce
kickback
Cutting equipment
WARNING! Faulty cutting equipment or the
wrong combination of bar and saw chain
increases the risk of kickback! Only use the
bar/saw chain combinations we recommend,
and follow the filing instructions. See
instructions under the heading Technical
data.
!
This section describes how to choose and maintain your
cutting equipment in order to:
•
•
Reduce the risk of kickback.
Reduce the risk of the saw chain breaking or jumping off
the bar.
The only way to avoid kickback is to make sure that the
kickback zone of the bar never touches anything.
•
•
•
Obtain optimal cutting performance.
Extend the life of cutting equipment.
Avoid increasing vibration levels.
By using cutting equipment with ”built-in” kickback reduction
and keeping the chain sharp and well-maintained you can
reduce the effects of kickback.
General rules
Bar
•
Only use cutting equipment recommended by us!
The smaller the tip radius the lower the chance of kickback.
See instructions under the heading Technical data.
Chain
A chain is made up of a number of links, which are available
in standard and low-kickback versions.
IMPORTANT! No saw chain design eliminates the danger of
kickback.
10 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
•
Number of drive links.
WARNING! Any contact with a rotating saw
chain can cause extremely serious injuries.
!
Some terms that describe the bar and chain
To maintain the safety features of the cutting equipment, you
should replace a worn or damaged bar or chain with a bar and
chain combinations recommended by Jonsered. See
instructions under the heading Technical Data for a list of
replacement bar and chain combinations we recommend.
Sharpening your chain and adjusting
depth gauge setting
General information on sharpening cutting teeth
Bar
•
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 chips will be very small. If the chain is very blunt it
will produce wood powder and no chips or shavings.
•
Length (inches/cm)
•
A sharp chain eats its way through the wood and produces
long, thick chips or shavings.
•
Number of teeth on bar tip sprocket (T).
•
•
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.
•
The cutting part of the chain is called the cutter and
consists of a cutting tooth (A) and the depth gauge (B).
The cutters cutting depth is determined by the difference
in height between the two (depth gauge setting).
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.
When you sharpen a cutting tooth there are four important
factors to remember.
•
•
Bar groove width (inches/mm).The groove in the bar must
match the width of the chain drive links.
1
Filing angle
2
Cutting angle
Chain oil hole and hole for chain tensioner. The bar must
be matched to the chain saw design.
3
4
File position
Chain
•
Chain pitch (inches)
Round file diameter
•
Drive link width (mm/inches)
English – 11
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
It is very difficult to sharpen a chain correctly without the right
achieve the recommended depth gauge setting. See
instructions under the heading Technical data to find the
correct depth gauge setting for your particular chain.
equipment. We recommend that you use our file gauge. This
will help you obtain the maximum kickback reduction and
cutting performance from your chain.
WARNING! The risk of kickback is increased
if the depth gauge setting is too large!
See instructions under the heading Technical data for
information about sharpening your chain.
!
Adjustment of depth gauge setting
WARNING! Departure from the sharpening
instructions considerably increases the risk
of kickback.
!
Sharpening cutting teeth
•
•
The cutting teeth should be newly sharpened before
adjusting the depth gauge setting. We recommend that
you adjust the depth gauge setting every third time you
sharpen the cutting teeth. NOTE! This recommendation
assumes that the length of the cutting teeth is not reduced
excessively.
To sharpen cutting teeth you will need a round file and a file
gauge. See instructions under the heading Technical data for
information on the size of file and gauge that are
You will need a flat file and a depth gauge tool. We
recommend that you use our depth gauge tool to acheive
the correct depth gauge setting and bevel for the depth
gauge.
recommended for the chain fitted to your chain saw.
•
•
Check that the chain is correctly tensioned. A slack chain
will move sideways, making it more difficult to sharpen
correctly.
•
Place the depth gauge tool over the chain. Detailed
information regarding the use of the depth gauge tool, will
be found on the package for the depth gauge tool. Use the
flat file to file off the tip of the depth gauge that protrudes
through the depth gauge tool. The depth gauge setting is
correct when you no longer feel resistance as you draw
the file along the depth gauge tool.
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.
Tensioning the chain
•
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.
WARNING! A slack chain may jump off and
cause serious or even fatal injury.
!
The more you use a chain the longer it becomes. It is
therefore important to adjust the chain regularly to take up the
slack.
General advice on adjusting depth gauge setting
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.
•
When you sharpen the cutting tooth (A) the depth gauge
setting (C) will decrease. To maintain optimal cutting
performance the depth gauge (B) has to be filed down to
12 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
Tension the chain as tightly as possible, but not so tight that
you cannot pull it round freely by hand.
Never use waste oil! Using waste oil can be dangerous to
you and damage the machine and environment.
IMPORTANT! When using vegetable based saw chain oil,
dismantle and clean the groove in the bar and saw chain
before long-term storage. Otherwise there is a risk of the
saw chain oil oxidizing, which will result in the saw chain
becoming stiff and the bar tip sprocket jamming.
•
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.
Filling with chain oil
•
All our chain saws have an automatic chain lubrication
system. On some models the oil flow is also adjustable.
•
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.
•
The saw chain oil tank and the fuel tank are designed so
that the fuel runs out before the saw chain oil.
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 carburetor as recommended
(a lean 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).
•
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.
Checking chain lubrication
•
Check the chain lubrication each time you refuel. See
instructions under the heading Lubricating the bar tip
sprocket.
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 position of the chain tensioning screw on our chain saws
varies from model to model. See instructions under the
heading What is what? to find out where it is on your model.
Lubricating cutting equipment
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.
If the chain lubrication is not working:
•
Check that the oil channel in the bar is not obstructed.
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.
English – 13
Download from Www.Somanuals.com. All Manuals Search And Download.
GENERAL SAFETY PRECAUTIONS
•
Check that the groove in the edge of the bar is clean.
Clean if necessary.
Bar
Check regularly:
•
Whether there are burrs on the edges of the bar. Remove
these with a file if necessary.
•
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.
•
•
Whether the groove in the bar has become badly worn.
Replace the bar if necessary.
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.
If the chain lubrication system is still not working after carrying
out the above checks and associated measures you should
contact your service agent.
Chain drive sprocket
The clutch drum is fitted with one of the following drive
sprockets:
•
To prolong the life of the bar you should turn it over daily.
A Spur sprocket (the chain sprocket is welded on the drum)
B Rim sprocket (replaceable)
WARNING! Most chain saw accidents
happen when the chain touches the
operator.
!
Regularly check the degree of wear on the drive sprocket.
Replace if wear is excessive. Replace the drive sprocket
whenever you replace the chain.
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
Checking wear on cutting equipment
Check the chain daily for:
instructions.
Avoid situations where there is a risk of
kickback. See instructions under the
′
heading Machine s safety equipment.
Use the recommended protective equipment
and check its condition. See instructions
under the headings Technical data and
General safety precautions.
•
•
•
Visible cracks in rivets and links.
Whether the chain is stiff.
Check that all the chain saw safety features
are working. See instructions under the
headings General working instructions and
General safety precautions.
Whether rivets and links are badly worn.
Replace the saw chain if it exhibits any of the points above.
We recommend you compare the existing chain with a new
chain to decide how badly the existing chain is worn.
When the length of the cutting teeth has worn down to only 4
mm the chain must be replaced.
14 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
ASSEMBLY
The chain is correctly tensioned when it does not sag from the
Fitting the bar and chain
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.
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.
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.
Remove the bar nuts and remove the clutch cover (chain
brake). Take off the transportation ring (A).
Fitting a spike bumper
To fit a spike bumper – contact your service agent.
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.
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.
Tension the chain by turning the chain tensioning screw
clockwise using the combination spanner. The chain should
be tensioned until it does not sag from the underside of the
bar. See instructions under the heading Tensioning the chain.
English – 15
Download from Www.Somanuals.com. All Manuals Search And Download.
FUEL HANDLING
Mixing ratio
Fuel
1:50 (2%) with JONSERED two-stroke oil.
Note! The machine is equipped with a two-stroke engine and
must always be run using a mixture of petrol and two-stroke
oil. It is important to accurately measure the amount of oil to
be mixed to ensure that the correct mixture is obtained.When
mixing small amounts of fuel, even small inaccuracies can
drastically affect the ratio of the mixture.
1:33 (3%) with oils class JASO FB or ISO EGB formulated for
air-cooled, two-stroke engines.
Petrol, litre
Two-stroke oil, litre
2% (1:50)
3% (1:33)
0,15
5
0,10
0,20
0,30
0,40
WARNING! Always ensure there is adequate
10
15
20
0,30
ventilation when handling fuel.
!
0,45
0,60
Petrol
Mixing
•
•
Use good quality unleaded or leaded petrol.
CAUTION! Engines equipped with catalytic
converters must be run on unleaded fuel mixtures.
Leaded gasoline will destroy the catalytic converter and it
will no longer serve its purpose. The green fuel cap on
saws fitted with catalytic converters means that only
unleaded gasoline can be used.
•
•
The lowest recommended octane grade is 90 (RON). If
you run the engine on a lower octane grade than 90 so-
called knocking can occur.This gives rise to a high engine
temperature and increased bearing load, which can result
in serious engine damage.
•
•
Always mix the petrol and oil in a clean container intended
for fuel.
Always start by filling half the amount of the petrol to be
used. Then add the entire amount of oil. Mix (shake) the
fuel mixture. Add the remaining amount of petrol.
When working with continuous high revs (e.g. limbing) a
higher octane is recommended.
Environment fuel
•
Mix (shake) the fuel mixture thoroughly before filling the
machine’s fuel tank.
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).
•
•
Do not mix more than one month’s supply of fuel at a time.
If the machine is not used for some time the fuel tank
should be emptied and cleaned.
Chain oil
•
We recommend the use of special oil (chain oil) with good
adhesion characteristics.
Running-in
Avoid running at a too high speed during the first 10 hours.
Two-stroke oil
•
For best results and performance use JONSERED two-
stroke engine oil, which is specially formulated for our air-
cooled two-stroke engines.
•
Never use two-stroke oil intended for water-cooled
engines, sometimes referred to as outboard oil (rated
TCW).
•
•
Never use oil intended for four-stroke engines.
•
•
•
Never use waste oil. This results in damage to the oil
pump, the bar and the chain.
A poor oil quality and/or too high oil/fuel ratio may
jeopardise function and decrease the life time of catalytic
converters.
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.
16 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
FUEL HANDLING
Fuelling
Fuel safety
•
Never refuel the machine while the engine is running.
•
Make sure there is plenty of ventilation when refuelling or
mixing fuel (petrol and 2-stroke oil).
•
Move the machine at least 3 m from the refuelling point
before starting it.
WARNING!Taking the following precautions,
will lessen the risk of fire:
!
Do not smoke and do not place any hot
objects in the vicinity of fuel.
Always stop the engine and let it cool for a
few minutes before refuelling.
When refuelling, open the fuel cap slowly so
that any excess pressure is released gently.
Tighten the fuel cap carefully after refuelling.
Always move the machine away from the
refuelling area before starting.
•
Never start the machine:
1
If you have spilt fuel or chain oil on the machine. Wipe off
the spillage and allow remaining fuel to evaporate.
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.
2
3
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.
If the machine is leaking fuel. Check regularly for leaks
from the fuel cap and fuel lines.
WARNING! Never use a machine with visible
damage to the spark plug guard and ignition
cable. A risk of sparking arises, which can
cause a fire.
!
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.
WARNING! Fuel and fuel vapour are highly
flammable.Take care when handling fuel and
chain oil. Be aware of the risks of fire,
explosion and those associated with
inhalation.
•
•
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.
The bar guard must always be fitted to the cutting
attachment when the machine is being transported or in
storage, in order to prevent accident contact with the
sharp chain. Even a non-moving chain can cause serious
cuts to yourself or persons you bump into with an exposed
chain.
Long-term storage
Empty the fuel/oil tanks in a well ventilated area.Store the fuel
in approved cans in a safe place. Fit the bar guard. Clean the
machine. See instructions under the heading Maintenance
schedule.
English – 17
Download from Www.Somanuals.com. All Manuals Search And Download.
STARTING AND STOPPING
Starting
Starting and stopping
WARNING! Note the following before
starting:
!
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.
The chain brake must be engaged when the
chain saw is started to reduce the chance of
contact with the moving chain during
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.
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.
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.
Cold engine
Starting: The chain brake must be engaged when the chain
saw is started. Activate the brake by moving the front hand
guard forwards.
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.
IMPORTANT! 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.
Ignition; choke: Slide the control to its rear position.
Primer bulb: Press the air purge repeatedly until fuel begins
to fill the bulb. The bulb need not be completely filled.
Note! Reactivate the chain brake by pushing the front hand
guard back towards the front handle. The chain saw is now
ready for use.
Warm engine
WARNING! Long term inhalation of the
engine’s exhaust fumes, chain oil mist and
dust from sawdust can represent a health
risk.
!
Use the same starting procedure as for a cold engine, with the
following exceptions:
•
•
Slide the control to its rear position.
Slide the control back to its middle position (working
position).
18 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
STARTING AND STOPPING
•
Never start a chain saw unless the bar, chain and all
Stopping
covers are fitted correctly. See instructions under the
heading Assembly. Without a bar and chain attached to
the chain saw the clutch can come loose and cause
serious injury.
•
The chain brake should be activated when starting. Se
instructions under the heading Start and stop.Do not drop
start. This method is very dangerous because you may
lose control of the saw.
The engine is stopped by pushing the stop switch to the stop
position.
•
•
Never start the machine indoors. Exhaust fumes can be
dangerous if inhaled.
Observe your surroundings and make sure that there is no
risk of people or animals coming into contact with the
cutting equipment.
•
Always hold the saw with both hands. The right hand
should be on the rear handle, and the left hand on the front
handle. All people, whether right or left handed, should
use this grip. Use a firm grip with thumbs and fingers
encircling the chain saw handles.
English – 19
Download from Www.Somanuals.com. All Manuals Search And Download.
WORKING TECHNIQUES
Basic safety rules
Before use:
1
•
Look around you:
1
3
2
To ensure that people, animals or other things cannot
affect your control of the machine.
4
6
•
To make sure that none of the above might come within
reach of your saw or be injured by falling trees.
8
1
2
3
Check that the chain brake works correctly and is not
damaged.
Check that the throttle lockout works correctly and is not
damaged.
Check that the stop switch works correctly and is not
damaged.
CAUTION! 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.
4
5
Check that all handles are free from oil.
Check that the anti vibration system works and is not
damaged.
2
All tree maintenance work above ground level must be
carried out by two or more persons with the right training
(see instructions under the heading Important). At least
one person should be on the ground to carry out safe
rescue procedures and/or get help should an emergency
arise.
6
7
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.
8
9
Check that the chain catcher is in place and not damaged.
Check the chain tension.
3
During tree maintenance work above ground level, the
working area should always be secured and marked out
with signs, tape or the like. The person(s) on the ground
should always inform the person(s) working above before
they enter the secure working area.
General working instructions
4
5
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.
IMPORTANT!
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!
Take great care when removing small branches and avoid
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.
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.
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 headings How to avoid
kickback and Machine’s safety equipment.
6
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.
Tree maintenance work with a chain saw above ground level,
which may involve using a single-handed grip, should only be
carried out by persons with experience and training in:
•
•
•
•
tree maintenance
climbing techniques
safety precautions when climbing
additional safety equipment, such as harnesses, eyes,
straps, ropes, safety hooks and other fall-prevention
measures for personnel and chain saws.
During tree maintenance work above ground level the chain
saw must be secured. Secure the chain saw by attaching a
safety line to the fixing eye on the chain saw.
Wear personal protective equipment. See instructions under
the heading Personal protective equipment.
20 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
WORKING TECHNIQUES
7
Take great care when cutting a tree that is in tension. A
Lack of concentration can lead to kickback if the kickback
zone of the bar accidentally touches a branch, nearby tree
or some other object.
tree that is in tension may spring back to its normal
position before or after being cut. If you position yourself
incorrectly or make the cut in the wrong place the tree may
hit you or the machine and cause you to lose control. Both
situations can cause serious personal injury.
8
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.
Have control over the workpiece. If the pieces you intend
to cut are small and light, they can jam in the saw chain
and be thrown towards you. Even if this does not need to
be a danger, you may be surprised and lose control of the
saw. Never saw stacked logs or branches without first
separating them. Only saw one log or one piece at a time.
Remove the cut pieces to keep your working area safe.
5
Never use the chain saw above shoulder height and
try not to cut with the tip of the bar. Never use the
chain saw one-handed!
9
When you put the chain saw on the ground, lock the saw
chain using the chain brake and ensure you have a
constant view of the machine.Switch the engine off before
leaving your chain saw for any length of time.
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.
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.
If you have to cut branches or the like that are above
shoulder height, a working platform or scaffold tower is
recommended.
3
4
A single-handed grip may be used, but only by persons
who are trained and have knowledge of tree maintenance
work using a chain saw, both above and on the ground.Do
not let go of the handles!
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.
English – 21
Download from Www.Somanuals.com. All Manuals Search And Download.
WORKING TECHNIQUES
8
Take great care when you cut with the top edge of the bar,
Terms
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.If the saw chain
is jamming, the saw may be pushed back at you.
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.
9
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.
2
Make sure the object you are cutting will not split.
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.
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?
10 Follow the instructions on sharpening and maintaining
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.
Do the conditions and surrounding terrain affect how
safely you can stand and move about?
Two factors decide whether the chain will jam or the object
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.
Basic cutting technique
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.
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.
!
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.
General
!
•
•
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).
The following instructions describe how to handle the
commonest situations you are likely to encounter when using
a chain saw.
•
•
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.
22 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
WORKING TECHNIQUES
- Start by cutting from above (about 1/3 of the way through).
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.
- Finish by cutting from below so that the two cuts meet.
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.
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.
- Turn the log and finish the cut from the opposite side.
Felling technique for tree tops
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!
!
The log is supported at one end. There is a high risk that it
will split.
Safe distance
During tree maintenance work above ground level, the
working area must always be secured and marked out with
signs, tape or the like. The safe distance between the top of
the tree that is to be felled and the nearest workplace must be
at least 2 1/2 times the height of the tree. Make sure that no-
one else is in this risk zone before or during felling.
Start by cutting from below (about 1/3 of the way through).
- Finish by cutting from above so that the two cuts meet.
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 thing to avoid is that the falling tree top should get
jammed in another tree. Taking down a ”jammed” tree top is
very dangerous (see point 4 in this section).
The log is supported at both ends. There is a high risk that
the chain will jam.
English – 23
Download from Www.Somanuals.com. All Manuals Search And Download.
WORKING TECHNIQUES
Once you have decided which way you want the top of the tree
Next make the bottom cut so that it finishes exactly at the end
to fall you must assess which way the top of the tree would fall
naturally.
of the top cut.
Several factors affect this:
•
•
•
•
•
Lean of the tree
Bend
Wind direction
Arrangement of branches
Weight of snow
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°.
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.
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.
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.
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.
WARNING! During critical felling operations,
hearing protectors should be lifted
immediately when sawing is completed so
that sounds and warning signals can be
heard.
Make the felling cut about 3-5 cm (1.5-2 inches) above the
bottom directional cut.
!
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.
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.
Directional cuts
To make the directional cuts you begin with the top cut. Stand
to the right of the tree and cut on the pull stroke.
24 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
WORKING TECHNIQUES
Finish the felling cut parallel with the directional cut line so that
Limbing
the distance between them is at least 1/10 of the trunk
diameter. The uncut section of the trunk is called the felling
hinge.
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.
Freeing a tree that has fallen badly
Cutting trees and branches that are in tension
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.
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.
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.
General advice:
Position yourself so that you will be clear of the tree or branch
when the tension is released.
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.
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!
WARNING! Unless you have special training
we advise you not to fell trees with a
diameter larger than the bar length of your
saw!
!
English – 25
Download from Www.Somanuals.com. All Manuals Search And Download.
WORKING TECHNIQUES
Limbing
How to avoid kickback
WARNING! A majority of kickback accidents
occur during limbing. Do not use the
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.
!
!
kickback zone of the guide bar. Be extremely
cautious and avoid contacting the log, other
limbs or objects with the nose of the guide
bar. Be extremely cautious of limbs under
tension.They can spring back toward you
and cause loss of control resulting in injury.
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.
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.
Kickback always occurs in the cutting plane of the bar.
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.
Keep the trunk between you and the chain saw as you move
along the trunk.
Cutting the trunk into logs
Kickback only occurs if the kickback zone of the bar touches
an object.
See instructions under the heading Basic cutting technique.
26 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTENANCE
Fine adjustment
General
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 user must only carry out the maintenance and service
work described in this manual.
IMPORTANT! Any maintenance other than that described in
this manual must be carried out by your servicing dealer
(retailer).
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.
Carburettor adjustment
Due to existing environmental and emissions legislation your
chain saw is equipped with movement limiters on the
carburettor adjuster screws. These limit the adjustment
possibilities to a maximum of a 1/2 turn.
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
L
1/2
1/2
•
•
•
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.
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.
Your Jonsered product has been designed and manufactured
to specifications that reduce harmful exhaust fumes.
Function
Low speed jet L
•
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.
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.
•
•
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:
- L = Low speed jet
Fine adjustment of the idle speedT
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.
- H = High speed jet
- T = Idle adjustment screw
L
H
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.
!
T
•
•
The L and H-jets are used to adjust the supply of fuel to
match the rate that air is admitted, which is controlled with
the throttle. If they are screwed clockwise the air/fuel ratio
becomes leaner (less fuel) and if they are turned anti-
clockwise the ratio becomes richer (more fuel). A lean
mixture gives a higher engine speed and a rich mixture
gives a lower engine speed.
The T-screw regulates the throttle setting at idle speed. If
the T-screw is turned clockwise this gives a higher idle
speed; turning it anti-clockwise gives a lower idle speed.
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.
CAUTION! If the high speed jet is screwed in too far, it
may damage the piston/cylinder.
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.
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.
Rec. idle speed: 2800 rpm
English – 27
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTENANCE
Checking the brake trigger
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.
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.
Checking,maintaining and servicing
chain saw safety equipment
Note! All service and repair work on the machine demands
special training. This is especially true of the machine’s
safety equipment. If your machine fails any of the checks
described below we recommend that you take it to your
service workshop.
Grasp the chain saw firmly, wrapping your fingers and thumbs
around the handles.
Chain brake and front hand guard
Checking brake band wear
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.
Brush off any wood dust, resin and dirt from the chain brake
and clutch drum. Dirt and wear can impair operation of the
brake.
Throttle lockout
Regularly check that the brake band is at least 0.6 mm thick
at its thinnest point.
•
Make sure the throttle control is locked at the idle setting
when the throttle lockout is released.
Checking the front hand guard
Make sure the front hand guard is not damaged and that there
are no visible defects such as cracks.
•
Press the throttle lockout and make sure it returns to its
original position when you release it.
Move the front hand guard forwards and back to make sure it
moves freely and that it is securely anchored to the clutch
cover.
•
Check that the throttle control and throttle lockout move
freely and that the return springs work properly.
28 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTENANCE
•
Start the chain saw and apply full throttle. Release the
Muffler
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.
Never use a machine that has a faulty muffler.
Chain catcher
Check that the chain catcher is not damaged and is firmly
attached to the body of the chain saw.
Regularly check that the muffler is securely attached to the
machine.
Vibration damping system
Regularly check the vibration damping units for cracks or
deformation.
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. A blocked mesh will cause the engine to overheat
and may lead to serious damage.
Note!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. Never use a muffler if the
spark arrestor mesh is missing or defective.
Make sure the vibration damping units are securely attached
to the engine unit and handle unit.
Stop switch
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.
A muffler equipped with a catalytic converter significantly
reduces the amount of hydrocarbons (HC), nitrogen oxides
(NO) and aldehydes in the exhaust fumes. Carbon monoxide
(CO), which is poisonous and odourless, is not however
reduced! Consequently, never work in an enclosed or badly
ventilated area. Good air circulation should always prevail
when working in snowy hollows, ravines or in confined
conditions.
Start the engine and make sure the engine stops when you
move the stop switch to the stop setting.
English – 29
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTENANCE
Tensioning the recoil spring
Starter
•
Hook the starter cord in the notch in the pulley and turn the
starter pulley about 2 turns clockwise.
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.
Note! Check that the pulley can be turned at least a further
1/2 turn when the starter cord is pulled all the way out.
!
Care must be exercised when replacing the
return spring or the starter cord. Wear
protective glasses and protective gloves.
Changing a broken or worn starter cord
•
Loosen the screws that hold the starter against the
crankcase and remove the starter.
Changing a broken recoil spring
•
Lift up the starter pulley. See instructions under the
heading Changing a broken or worn starter cord.
Remember that the recoil spring is coiled under tension in
the starter housing.
•
•
Remove the cassette with the recoil spring from the
starter.
Lubricate the recoil spring with light oil. Fit the cassette
with recoil spring in the starter. Fit the starter pulley and
tension the recoil spring.
•
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.
•
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.
Fitting the starter
•
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.
30 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTENANCE
Air filter
Spark plug
The air filter must be regularly cleaned to remove dust and dirt
in order to avoid:
The spark plug condition is influenced by:
•
•
Incorrect carburettor adjustment.
An incorrect fuel mixture (too much or incorrect type of
oil).
•
•
•
•
•
•
Carburettor malfunctions
Starting problems
•
A dirty air filter.
Loss of engine power
Unnecessary wear to engine parts.
Excessive fuel consumption.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting
difficulties.
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.
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.
The filter can be cleaned more thoroughly by washing it in
water and detergent.
Note! Always use the recommended spark plug type! Use of
the wrong spark plug can damage the piston/cylinder. Check
that the spark plug is fitted with a suppressor.
An air filter that has been in use for a long time cannot be
cleaned completely.The filter must therefore be replaced with
a new one at regular intervals. A damaged air filter must
always be replaced.
Lubricating the bar tip sprocket
Lubricate the bar tip sprocket each time you refuel. Use the
special grease gun and a good quality bearing grease.
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.
English – 31
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTENANCE
Adjustment of the oil pump
Cooling system
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 with the screw set to
position 2.Turning the screw clockwise will reduce the oil flow
and turning the screw anti-clockwise will increase the oil flow.
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).
+
-
Recommended settings:
Bar 13"-15": Position 1
Bar 15"-18": Position 2
Bar 18"-20": Position 3
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.
Note! The cooling system on a chain saw with catalytic
converter must be cleaned daily.This is particularly important
on chain saws with catalytic converters, because the higher
exhaust temperature requires efficient cooling of the engine
and the catalytic converter unit.
WARNING! The engine must not be running
when making adjustments.
!
32 – English
Download from Www.Somanuals.com. All Manuals Search And Download.
MAINTENANCE
Maintenance schedule
The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the
Maintenance section.
Daily maintenance
Weekly maintenance
Monthly maintenance
Check the brake band on the chain brake
for wear. Replace when less than 0.6 mm
(0,024 inch) remains at the most worn
point.
On chain saws without a catalytic
converter, check the cooling system
weekly.
Clean the outside of the machine.
Check that the components of the throttle
control work safely. (Throttle lockout and
throttle control.)
Check the starter, starter cord and return Check the clutch centre, clutch drum and
spring.
clutch spring for wear.
Clean the chain brake and check that it
operates safely. Make sure that the chain Check that the vibration damping
Clean the spark plug. Check that the
electrode gap is 0.5 mm.
catcher is undamaged, and replace it if
necessary.
elements are not damaged.
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.
File off any burrs from the edges of the
bar.
Clean the outside of the carburettor.
Check that the bar and chain are getting Clean or replace the spark arrestor mesh Check the fuel filter and the fuel hose.
sufficient oil.
on the muffler.
Replace if necessary.
Check the saw chain with regard to visible
cracks in the rivets and links, whether the
saw chain is stiff or whether the rivets and Clean the carburettor compartment.
Empty the fuel tank and clean the inside.
links are abnormally worn. Replace if
necessary.
Sharpen the chain and check its tension
and condition. Check the drive sprocket
for excessive wear and replace if
necessary.
Clean the air filter. Replace if necessary. Empty the oil tank and clean the inside.
Check all cables and connections.
Clean the starter units air intake.
Check that nuts and screws are tight.
Check that the stop switch works
correctly.
Check that there are no fuel leaks from
the engine, tank or fuel lines.
On chain saws with a catalytic converter,
check the cooling system daily.
English – 33
Download from Www.Somanuals.com. All Manuals Search And Download.
TECHNICAL DATA
Technical data
CS 2139T
Engine
3
Cylinder displacement, cm
Cylinder bore, mm
39
40
Stroke, mm
31
Idle speed, rpm
2800
13800
1,7/9600
1,7/9600
Recommended max. fast idle speed, rpm
Power, kW/ rpm (Europe)
Power, kW/ rpm (Australia)
Ignition system
Manufacturer of ignition system
Type of ignition system
Spark plug
SEM
CD
NGK BPMR 7A/ Champion RCJ 7Y
Electrode gap, mm
0,5
Fuel and lubrication system
Manufacturer of carburettor
Carburettor type
Zama
C1Q EL33A
0,34
Fuel tank capacity, litre
Oil pump capacity at 8,500 rpm, ml/min
Oil tank capacity, litre
3-7
0,15
Type of oil pump
Automatic
Weight
Chain saw without bar or chain, empty tanks, kg
Noise emissions (see note 1)
Sound power level, measured dB(A)
3,5
110
112
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
102
Equivalent sound pressure level at operator’s ear, measured
according to relevant international standards, dB(A) (Australia)
Vibration levels (see note 3)
2
Front handle, m/s
2,8
3,1
2
Rear handle, m/s
Chain/bar
Standard bar length, inch/cm
Recommended bar lengths, inch/cm
Usable cutting length, inch/cm
Pitch, inch/mm
14"/34
12-14”/30-35
11-13”/28-33
3/8" /9,52
0,050/1,3
Spur/6
Thickness of drive links, inch/mm
Type of drive sprocket/number of teeth
Chain speed at max. power, m/sec
18,3
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.
´®z+Rvh¶6|¨
34 – English
´®z+Rvh¶6|¨
Download from Www.Somanuals.com. All Manuals Search And Download.
TECHNICAL DATA
Bar and chain combinations
The following recommended combinations of bar and saw chain are type approved for your chain saw. The saw chain Jonsered
H36 is designed to minimize kickback (classified saw chain of low kickback type according to ANSI B175.1).
Bar
Chain
Length, inch
Pitch, inch
Gauge, mm
Max. nose radius Type
Length, drive links (no.)
12
14
3/8
3/8
1,3
1,3
7 T
45
50
Jonsered H36
7 T
Saw chain filing and file gauges
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 saw Jonsered
CS 2139T from 2005’s serial numbers and onwards (the year is clearly stated in plain text on the type plate with subsequent serial
number), is 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:EN ISO
12100-2:2003, CISPR 12:1997, EN ISO 11681-2.
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: 404/05/1061
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: 01/161/056.
The supplied chain saw conforms to the example that underwent EC type examination.
Huskvarna 4 may 2005
Bo Andréasson, Managing Director
English – 35
Download from Www.Somanuals.com. All Manuals Search And Download.
1150867-26
´®z+Rvh¶6|¨
´®z+Rvh¶6|¨
2007-05-11
Download from Www.Somanuals.com. All Manuals Search And Download.
|