Operator’s manual (EPA II)
Please read the operator’s manual carefully and
make sure you understand the instructions
before using the machine.
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CS 2135T
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
Fueling ......................................................................... 17
Fuel safety ................................................................... 17
STARTING AND STOPPING
Starting and stopping ................................................... 18
WORKING TECHNIQUES
Before use: ................................................................... 20
General working instructions ....................................... 20
How to avoid kickback .................................................. 25
MAINTENANCE
General ........................................................................ 26
Carburetor adjustment ................................................. 26
Checking, maintaining and servicing chain saw safety
equipment .................................................................... 27
Muffler .......................................................................... 28
Starter .......................................................................... 28
Air filter ......................................................................... 29
Spark plug .................................................................... 30
Lubricating the bar tip sprocket .................................... 30
Adjustment of the oil pump .......................................... 30
Cooling system ............................................................ 30
Maintenance schedule ................................................. 31
TECHNICAL DATA
Technical data .............................................................. 32
Bar and chain combinations ........................................ 33
Saw chain filing and file gauges ................................... 33
FEDERAL EMISSION CONTROL WARRANTY
STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 34
AMERICAN STANDARD SAFETY PRECAUTIONS
Safety precautions for chain saw users ....................... 35
English – 3
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INTRODUCTION
Dear customer!
Congratulations on your choice to buy a Jonsered product!
Your purchase 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 authorized dealers, ask for the address of your nearest servicing dealer.
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 ever lend or sell this machine, make sure that the borrower or buyer gets the operator′s
manual, so they will also know how to properly maintain and use it.
Good luck on using your Jonsered machine!
Jonsered has a policy of continuous product development and therefore reserves the right to modify the design and appearance
of products without prior notice.
4 – English
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WHAT IS WHAT?
What is what on the chain saw?
1
2
3
4
5
6
7
8
Filter cover
16 Bar
Front handle
17 Bumper spike
Front hand guard
Starter
18 Chain catcher
19 Clutch cover with built-in chain brake.
20 Oil pump adjustment screw
21 Throttle control
Chain oil tank
Starter handle
Adjuster screws carburetor
22 Throttle lockout
Stop and choke control: Ignition on/off switch Choke
control/Start throttle lock Working position
23 Combination spanner
24 Chain tensioning screw
25 Operator’s manual (EPA)
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
15 Chain
English – 5
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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.
•
•
Refuel and start the chain saw. See the instructions under
the headings Fuel Handling and Starting and Stopping.
You should only use the saw with the bar and chain
combinations we recommend in the chapter Technical data.
Do not use the chain saw until sufficient chain oil has
reached the chain. See instructions under the heading
Lubricating cutting equipment.
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.
•
Long-term exposure to noise can result in permanent
hearing impairment. So always use approved hearing
protection.
Wear personal protective equipment. See instructions
under the heading Personal protective equipment.
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
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.
!
use genuine accessories. Non-authorized
modifications and/or accessories can result
in serious personal injury or the death of the
operator or others.Your warranty may not
cover damage or liability caused by the use
of non-authorized accessories or
Never use any accessories other than those recommended
in this manual. See instructions under the headings Cutting
equipment and Technical data.
replacement parts.
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! 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! Running an engine in a confined
or badly ventilated area can result in death
due to asphyxiation or carbon monoxide
poisoning.
!
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! 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
!
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.
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
6 – English
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GENERAL SAFETY PRECAUTIONS
chain saw usage if possible.Your dealer, forestry school or
Generally clothes should be close-fitting without restricting
your library can provide information about which training
materials and courses are available.
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 servicing dealer.
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
Personal protective equipment
!
maintained. See instructions under the
heading Checking, maintaining and
servicing chain saw safety equipment. If
your machine does not pass all the checks,
take the saw to a servicing dealer for repair.
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.
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
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 chain brake (A) can either be activated manually (by
your left hand) or automatically by the inertia release
mechanism.
The brake is applied when the front hand guard (B) is
pushed forwards.
B
B
A
English – 7
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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 is designed to 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.
•
To release the chain brake pull the front hand guard
backwards, towards the front handle.
Will my hand always activate the chain
brake during a kickback?
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
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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 reduce 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
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GENERAL SAFETY PRECAUTIONS
•
Maintain the correct depth gauge setting! Follow our
Muffler
instructions and use the recommended depth gauge
clearance. Too large a clearance increases the risk of
kickback.
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!
!
•
•
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.
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 screen.
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.
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.
Cutting equipment designed to reduce
kickback
WARNING! Never use a saw without a
muffler, or with a damaged muffler. A
damaged muffler may substantially increase
!
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.
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.
!
The only way to avoid kickback is to make sure that the
kickback zone of the bar never touches anything.
Cutting equipment
This section describes how to choose and maintain your
cutting equipment in order to:
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 kickback.
Reduce the risk of the saw chain breaking or jumping off
the bar.
Bar
•
•
•
Obtain optimal cutting performance.
Extend the life of cutting equipment.
Avoid increasing vibration levels.
The smaller the tip radius the lower the chance of kickback.
Chain
A chain is made up of a number of links, which are available
in standard and low-kickback versions.
General rules
•
Only use cutting equipment recommended by us!
See instructions under the heading Technical data.
IMPORTANT! No saw chain design eliminates the danger
of kickback.
WARNING! Any contact with a rotating saw
chain can cause extremely serious injuries.
!
•
Keep the chain’s cutting teeth properly sharpened!
Follow our instructions and use the recommended file
gauge. A damaged or badly sharpened chain increases
the risk of accidents.
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.
10 – English
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GENERAL SAFETY PRECAUTIONS
Bar
Sharpening your chain and adjusting
depth gauge setting
•
Length (inches/cm)
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 chips will be very small. If the chain is very blunt
it will produce wood powder and no chips or shavings.
•
Number of teeth on bar tip sprocket (T).
•
A sharp chain eats its way through the wood and
produces long, thick chips or shavings.
•
•
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.
•
•
Bar groove width (inches/mm).The groove in the bar must
match the width of the chain drive links.
When you sharpen a cutting tooth there are four important
factors to remember.
1
Filing angle
Chain oil hole and hole for chain tensioner. The bar must
be matched to the chain saw design.
2
Cutting angle
Chain
3
4
File position
•
Chain pitch (inches)
Round file diameter
•
Drive link width (mm/inches)
Number of drive links.
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 instructions under the heading Technical data for
information about sharpening your chain.
English – 11
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GENERAL SAFETY PRECAUTIONS
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 recom-
mend 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 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 0.16 inch (4 mm) the chain
is worn out and should be replaced.
WARNING! A slack chain may jump off the
bar 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.
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.
General advice on adjusting depth gauge setting
•
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
achieve the recommended depth gauge setting. See
instructions under the heading Technical data to find the
correct depth gauge setting for your particular chain.
Tension the chain as tightly as possible, but not so tight that
you cannot pull it round freely by hand.
•
Loosen 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.
WARNING! The risk of kickback is increased
if the depth gauge setting is too large!
!
12 – English
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GENERAL SAFETY PRECAUTIONS
•
Raise the tip of the bar and stretch the chain by tightening
•
The saw chain oil tank and the fuel tank are designed so
the chain tensioning screw using the combination
spanner. Tighten the chain until it does not sag from the
underside of the bar.
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).
Checking chain lubrication
•
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.
•
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.
!
If the chain lubrication is not working:
•
Check that the oil channel in the bar is not obstructed.
Clean if necessary.
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.
As a chain saw manufacturer we have developed an optimal
chain oil which has a vegetable oil base. 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.
•
Check that the groove in the edge of the bar is clean.
Clean if necessary.
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.
•
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.
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 servicing dealer.
English – 13
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GENERAL SAFETY PRECAUTIONS
•
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.
Chain drive sprocket
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)
•
To prolong the life of the bar you should turn it over daily.
Regularly check the degree of wear on the drive sprocket.
Replace if wear is excessive. Replace the drive sprocket
whenever you replace the chain.
WARNING! Most chain saw accidents
happen when the chain touches the
operator.
Checking wear on cutting equipment
!
Wear personal protective equipment. See
instructions under the heading Personal
protective equipment.
Check the chain daily for:
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
instructions.
•
•
•
Visible cracks in rivets and links.
Whether the chain is stiff.
Avoid situations where there is a risk of
kickback. See instructions under the
heading Machine′s safety equipment.
Whether rivets and links are badly worn.
Use the recommended protective equipment
and check its condition. See instructions
under the headings Technical data and
General safety precautions.
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.
Check that all the chain saw safety features
are working. See instructions under the
headings General working instructions and
General safety precautions.
When the length of the cutting teeth has worn down to only
0.16 inch (4 mm) the chain must be replaced.
Bar
Check regularly:
•
Whether there are burrs on the edges of the bar. Remove
these with a file if necessary.
•
Whether the groove in the bar has become badly worn.
Replace the bar if necessary.
14 – English
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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, in order to protect
your hands from injury.
!
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.
Note: If clutch cover is difficult to remove, replace bar nuts,
engage brake and rerelease (an audible click will be heard if
released properly).
Remove the bar nuts and remove the clutch cover (chain
brake). Take off the transportation ring (A).
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. See instructions
under the heading Tensioning the chain.
English – 15
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FUEL HANDLING
Mixing ratio
Fuel
1:50 (2%) for all engines.
Note! The machine is equipped with a two-stroke engine and
must always be run using a mixture of gasoline 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.
Two-stroke oil, litre
2% (1:50)
0,10
Gasoline, litre
5
10
0,43/0,20
0,30
15
WARNING! Always ensure there is adequate
ventilation when handling fuel.
20
0,40
!
US gallon
US fl. oz.
2 1/2
1
2 1/2
5
6 1/2
Gasoline
12 7/8
Mixing
•
•
Use good quality unleaded gasoline.
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 87
((RON+MON)/2). If you run the engine on a lower octane
grade than 87 so-called knocking can occur. This gives
rise to a high engine temperature and increased bearing
load, which can result in serious engine damage.
When working with continuous high revs (e.g. limbing) a
higher octane is recommended.
•
•
Always mix the gasoline and oil in a clean container
intended for fuel.
Environment fuel
Always start by filling half the amount of the gasoline to be
used. Then add the entire amount of oil. Mix (shake) the
fuel mixture. Add the remaining amount of gasoline.
JONSERED recommends the use of alkylate fuel or
environment fuel for four-stroke engines blended with two-
stroke oil as set out below. Note that carburetor adjustment
may be necessary when changing the type of fuel (see
instructions under the heading Carburetor).
•
Mix (shake) the fuel mixture thoroughly before filling the
machine’s fuel tank.
•
•
Do not mix more than one month’s supply of fuel at a time.
Running-in
If the machine is not used for some time the fuel tank
should be emptied and cleaned.
Avoid running at a too high speed for extended periods during
the first 10 hours.
Chain oil
Two-stroke oil
•
We recommend the use of special oil (chain oil) with good
adhesion characteristics.
•
•
•
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.
It is important to use oil of the right grade (suitable
viscosity range) to suit the air temperature.
16 – English
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FUEL HANDLING
•
•
In temperatures below 32°F (0°C) some oils become too
viscous. This can overload the oil pump and result in
damage to the oil pump components.
Fuel safety
•
Never refuel the machine while the engine is running.
Contact your service agent when choosing chain oil.
•
Make sure there is plenty of ventilation when refuelling or
mixing fuel (gasoline and 2-stroke oil).
Fueling
•
Move the machine at least 10 ft (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.
•
Never start the machine:
When refuelling, open the fuel cap slowly so
that any excess pressure is released gently.
1
If you have spilled fuel or chain oil on the machine. Wipe
off the spillage and allow remaining fuel to evaporate.
Tighten the fuel cap carefully after refuelling.
2
3
If you have spilled 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.
Always move the machine away from the
refuelling area before starting.
If the machine is leaking fuel. Check regularly for leaks
from the fuel cap and fuel lines.
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.
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.
•
•
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 gas station.
WARNING! Fuel and fuel vapor are highly
flammable.Take care when handling fuel and
chain oil. Be aware of the risks of fire,
explosion and those associated with
inhalation.
!
•
•
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
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STARTING AND STOPPING
Use the same starting procedure as for a cold engine, with the
following exceptions:
Starting and stopping
•
•
Slide the control to its rear position.
WARNING! Note the following before
starting:
Slide the control back to its middle position (working
position).
!
The chain brake must be engaged when the
chain saw is started to reduce the chance of
contact with the moving chain during
starting.
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.
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 wrap
the starter cord around your hand
Place the machine on firm ground. Make
sure you have a secure footing and that the
chain cannot touch anything.
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.
Keep people and animals well away from the
working area.
Cold engine
Starting: The chain brake should be activated when starting
the chain saw. Activate the chain brake by pushing the front
hand guard forwards.
Push in the choke control as soon as the engine fires and
make repeated starting attempts. Immediately press and
release the throttle when the engine starts. That will
disengage the throttle latch.
Ignition; choke: Slide the control to its rear position.
IMPORTANT! As the chain brake is still activated the engine
must return to idling speed as soon as possible by
disengaging the throttle latch in order to avoid unnecessery
wear on the clutch assembly.
Primer bulb: Press the air purge repeatedly until fuel begins
to fill the bulb. The bulb need not be completely filled.
Warm engine
Note! Pull the front hand guard towards the front handle.The
chain brake is now disengaged.Your saw is ready for use.
WARNING! Long term inhalation of the
engine’s exhaust fumes, chain oil mist and
dust from sawdust can represent a health
risk.
!
18 – English
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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
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WORKING TECHNIQUES
Basic safety rules
Before use:
1
•
Look around you:
1
3
To ensure that people, animals or other things cannot
affect your control of the machine.
2
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.
4
5
Check that all handles are free from oil.
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.
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
IMPORTANT!
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.
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 are not sure you
can handle!
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.
7
Take great care when cutting a tree that is under tension.
A tree that is under tension may spring back to its normal
position before or after being cut. If you position yourself
Wear personal protective equipment. See instructions under
the heading Personal protective equipment.
20 – English
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WORKING TECHNIQUES
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.
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.
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.
5
Never use the chain saw above shoulder height and
avoid cutting 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.
6
7
Always use a fast cutting speed, i.e. full throttle.
If you have to cut branches or the like that are above
shoulder height, a working platform or scaffold tower is
recommended.
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.
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 minimizes the effect of kickback and lets
you keep the chain saw under control.
8
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 with a pushing chain. 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.
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.
Lack of concentration can lead to kickback if the kickback
zone of the bar accidentally touches a branch, nearby tree
or some other object.
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
can lead to a kickback.
English – 21
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WORKING TECHNIQUES
Cutting with the bottom edge of the bar, i.e. from the top
4
Is there a risk of kickback?
of the object downwards, is known as cutting with a pulling
chain. 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 with a pulling
chain gives the operator better control over the chain saw
and the position of the kickback zone.
5
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.
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.
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.
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.
!
Basic cutting technique
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
common situations you are likely to encounter when using a
chain saw.
•
•
Cutting from above = Cutting with a pulling chain.
Cutting from below = Cutting with pushing chain.
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.
Cutting with a pushing chain increases the risk of kickback.
See instructions under the heading How to avoid kickback.
Terms
Cutting = General term for cutting through wood.
Limbing = Cutting branches off a felled tree.
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.
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
2
Make sure the cutting equipment will not jam in the cut.
Make sure the object you are cutting will not split.
- If it is possible (can you turn the log?) stop cutting about 2/
3 of the way through the log.
3
Make sure the chain will not strike the ground or any other
object during or after cutting.
- Turn the log and finish the cut from the opposite side.
22 – English
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WORKING TECHNIQUES
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.
Once you have decided which way you want the top of the
tree to fall you must assess which way the top of the tree
would fall naturally.
- Start by cutting from above (about 1/3 of the way through).
Several factors affect this:
•
•
•
•
•
Lean of the tree
Bend
Wind direction
Arrangement of branches
Weight of snow
- 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.
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 technique for tree tops
WARNING! It takes a lot of experience to fell
WARNING! During critical felling operations,
a tree. Inexperienced users of chain saws
should not fell trees. Do not attempt any task
beyond your experience level!
hearing protectors should be lifted
immediately when sawing is completed so
that sounds and warning signals can be
heard.
!
!
English – 23
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WORKING TECHNIQUES
Use full throttle and bring the bar and chain slowly into the
Felling
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.
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.
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.
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.
Next make the bottom cut so that it finishes exactly at the end
of the top cut.
The felling hinge controls the direction that the tree falls in.
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°.
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.
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.
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.
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.
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.
Make the felling cut about 1.5-2 inches (3-5 cm) 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.
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WORKING TECHNIQUES
How to avoid kickback
WARNING! Unless you have special training
we advise you not to fell trees with a
diameter larger than the bar length of your
saw!
!
Limbing
!
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.
!
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!
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.
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.
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.
Kickback only occurs if the kickback zone of the bar touches
an object.
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
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).
Limbing
WARNING! A majority of kickback accidents
occur during limbing. Do not use the
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.
!
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.
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.
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.
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.
Never cut straight through a tree or branch that is in
tension!
English – 25
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MAINTENANCE
Basic settings and running in
The basic carburetor settings are adjusted during testing at
the factory. Avoid running at a too high speed for extended
periods during the first 10 hours.
General
The user must only carry out the maintenance and service
work described in this manual.
CAUTION! If the chain rotates while idling the T-screw
must be turned anti-clockwise until the chain stops.
IMPORTANT! Any maintenance other than that described
in this manual must be carried out by your servicing dealer
(retailer).
Rec. idle speed: 2800 rpm
Fine adjustment
When the machine has been ”run-in”the carburetor 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.
Carburetor adjustment
Due to existing environmental and emissions legislation your
chain saw is equipped with movement limiters on the
carburetor 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
carburetor 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.
Your Jonsered product has been designed and manufactured
to specifications that reduce harmful exhaust fumes.
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.
Function
Low speed jet L
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.
•
The carburetor governs the engine’s speed via the throttle
control. Air and fuel are mixed in the carburetor. The air/
fuel mixture is adjustable. Correct adjustment is essential
to get the best performance from the machine.
•
•
The setting of the carburetor means that the engine is
adapted to local conditions, for example, the climate,
altitude, fuel and the type of 2-stroke oil.
Fine adjustment of the idling 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 counter-clockwise
until the chain stops. A correctly adjusted idle speed setting
occurs when the engine runs smoothly in every position. It
should also be good margin to the rpm when the chain starts
to rotate.
The carburetor has three adjustment controls:
- L = Low speed jet
- H = High speed jet
- T = Idle adjustment screw
L
T
H
WARNING! Contact your servicing dealer, if
the idle speed setting cannot be adjusted so
that the chain stops at idle. Do not use the
chain saw until it has been properly adjusted
or repaired.
!
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.
•
•
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.
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
carburetor’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.
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.
26 – English
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MAINTENANCE
Checking the brake trigger
Correctly adjusted carburetor
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.
When the carburetor is correctly adjusted the machine
accelerates without hesitation and the machine 4-cycles a
little at max. speed. 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.
Checking,maintaining and servicing
chain saw safety equipment
Grasp the chain saw firmly, wrapping your fingers and thumbs
around the handles.
Note! 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 we recommend you to contact our
servicing dealer.
Chain brake and front hand guard
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.
Checking brake band wear
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
•
Make sure the throttle control is locked at the idle setting
when the throttle lockout is released.
Regularly check that the brake band is at least 0.024 inch (0.6
mm) thick at its thinnest point.
Checking the front hand guard
•
Press the throttle lockout and make sure it returns to its
original position when you release it.
Make sure the front hand guard is not damaged and that there
are no visible defects such as cracks.
•
Check that the throttle control and throttle lockout move
freely and that the return springs work properly.
Move the front hand guard forwards and back to make sure it
moves freely and that it is securely anchored to the clutch
cover.
•
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
carburetor idle adjustment.
English – 27
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MAINTENANCE
Regularly check that the muffler is securely attached to the
machine.
Chain catcher
Check that the chain catcher is not damaged and is firmly
attached to the body of the chain saw.
Some mufflers are equipped with a special spark arrestor
screen. If your machine has this type of muffler, you should
clean the screen at least once a week. This is best done with
a wire brush. A blocked screen will cause the engine to
overheat and may lead to serious damage. Note! The screen
must be replaced if it is damaged. If the screen 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
screen is missing or defective.
Vibration damping system
Regularly check the vibration damping units for cracks or
deformation.
Make sure the vibration damping units are securely attached
to the engine unit and handle unit.
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 odorless, 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.
Stop switch
Start the engine and make sure the engine stops when you
move the stop switch to the stop setting.
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.
!
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
Muffler
•
Loosen the screws that hold the starter against the
crankcase and remove the starter.
Never use a machine that has a faulty muffler.
28 – English
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MAINTENANCE
•
Pull out the cord approx. 30 cm (12 inches) and hook it
•
Lubricate the recoil spring with light oil. Fit the cassette
into the notch in the rim of the pulley. Release the recoil
spring by letting the pulley rotate slowly backwards.
with recoil spring in the starter. Fit the starter pulley and
tension the recoil spring.
•
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
center 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.
Air filter
Tensioning the recoil spring
•
Hook the starter cord in the notch in the pulley and turn
the starter pulley about 2 turns clockwise.
The air filter must be regularly cleaned to remove dust and dirt
in order to avoid:
Note! Check that the pulley can be turned an additional 1/
2 turn when the starter cord is pulled all the way out.
•
•
•
•
•
•
Carburettor malfunctions
Starting problems
Loss of engine power
Unnecessary wear to engine parts
Excessive fuel consumption.
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.
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.
The filter can be cleaned more thoroughly by washing it in
water and detergent.
English – 29
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MAINTENANCE
An air filter that has been in use for a long time cannot be
Adjustment of the oil pump
cleaned completely.The filter must therefore be replaced with
a new one at regular intervals. A damaged air filter must
always be replaced.
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.
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.
+
-
Spark plug
The spark plug condition is influenced by:
•
•
Incorrect carburetor adjustment.
Recommended settings:
Bar 13"-15": Position 1
Bar 15"-18": Position 2
Bar 18"-20": Position 3
An incorrect fuel mixture (too much or incorrect type of
oil).
•
A dirty air filter.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting
difficulties.
WARNING! The engine must be stopped
when making adjustments.
!
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 0.020 inch (0.5 mm).The spark plug
should be replaced after about a month in operation or earlier
if necessary.
Cooling system
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).
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.
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.
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.
30 – English
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MAINTENANCE
Maintenance schedule
The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the
Maintenance section.
Daily maintenance
Weekly maintenance
Monthly maintenance
Check the brake band on the chain brake
for wear. Replace when less than 0.024
inch (0.6 mm) 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 0.020 inch (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 carburetor.
Check that the bar and chain are getting Clean or replace the spark arrestor
Check fuel hose for cracks or other
damage. Change if necessary.
sufficient oil.
screen on the muffler.
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 carburetor 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 – 31
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TECHNICAL DATA
Technical data
CS 2135T
Engine
3
Cylinder displacement, cu.in/cm
Cylinder bore, inch/mm
Stroke, inch/mm
2,38/39
1,57/40
1,22/31
2800
Idle speed, rpm
Power, kW/ rpm
1,7/9600
Ignition system
Manufacturer of ignition system
Type of ignition system
Spark plug
SEM
CD
NGK BPMR 7A/ Champion RCJ 7Y
Electrode gap, inch/mm
Fuel and lubrication system
Manufacturer of carburetor
Carburetor type
0,02/0,5
Zama
C1Q EL33A
0,72/0,34
3-7
Fuel tank capacity, US pint/litre
Oil pump capacity at 8,500 rpm, ml/min
Oil tank capacity, US pint/litre
Type of oil pump
0,15
Automatic
Weight
Chain saw without bar or chain, empty tanks, lb/kg
Chain/bar
7,7/3,5
Standard bar length, inch/cm
Recommended bar lengths, inch/cm
Usable cutting length, inches/cm
Pitch, inch/mm
14"/34
12-16”/30-40
11-15"/28-38
3/8 / 9,52
0,050/1,3
Spur/6
Thickness of drive links, inch/mm
Drive sprocket type/teeth
Chain speed at max. power, m/sec
18,3
32 – English
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TECHNICAL DATA
Recommended original and replacement bar and chain combinations
Following is a list of recommended cutting equipment for the Jonsered chain saw model CS 2135T. The combinations of power
head, bar and chain have been tested and found to be in accordance with the kickback and vibration requirements of ANSI B
175.1–2000.
The guide bar nose radius is determined by either the maximum number of teeth in the nose sprocket or the corresponding
maximum nose radius of a hard nose.
The following list is the chain saw manufacturers recommendations. There may be other combinations available, which will also
achieve kickback reduction.
As we are listing the maximum guide bar nose radius, you may use a guide bar with smaller nose radius than in our list. For guide
bars of the same length, all sprocket-nose guide bars of the same pitch and having the same number of sprocket teeth may be
considered to have equivalent kickback energy. A hard nose bar having the same length and nose radius as a sprocket-nose bar
may be considered to have equivalent or less kickback energy than the sprocket-nose bar.
Bar and chain combinations
Bar
Chain
Drive link count
Length, inch
Pitch, inch
Gauge, inch
0,050
Max. nose radius
Type
12
14
16
3/8
3/8
3/8
9 T
9 T
9 T
45
52
56
0,050
Jonsered H36
0,050
Note: For the saw chains above (if available) you are free to choose between 0,050" or 0,058" gauge drive links for the
corresponding bar, see the table below.
Saw chain filing and file gauges
English – 33
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FEDERAL EMISSION CONTROL WARRANTY STATEMENT
WARRANTY PERIOD Any warranted part which is not
scheduled for replacement as required maintenance, or
which is scheduled only for regular inspection to the effect of
YOUR WARRANTY RIGHTS AND
OBLIGATIONS
“repair or replace as necessary” shall be warranted for 2
The EPA (The US Environmental Protection Agency),
years.Any warranted part which is scheduled for replacement
Environment Canada and Jonsered are pleased to explain
as required maintenance shall be warranted for the period of
the emissions control system warranty on your 2001 and later
time up to the first scheduled replacement point for that part.
small nonroad engine. In U.S. and Canada, new small
DIAGNOSIS The owner shall not be charged for diagnostic
labor which leads to the determination that a warranted part
is defective, if the diagnostic work is performed at an
approved Jonsered servicing dealer.
nonroad engines must be designed, built and equipped to
meet the federal stringent anti-smog standards. Jonsered
must warrant the emission control system on your small
nonroad engine for the period of time listed below provided
there has been no abuse, neglect or improper maintenance of
your unit.Your emmission control system includes Parts such
as the carburetor and the ignition system. Where a
CONSEQUENTIAL DAMAGES Jonsered may be liable for
damages to other engine components caused by the failure
of a warranted part still under warranty.
warrantable condition exists, Jonsered will repair your small
nonroad engine at no cost to you. Expenses covered under
warranty include diagnosis, parts and labor.
WHAT IS NOT COVERED
All failures caused by abuse, neglect or improper
maintenance are not covered.
MANUFACTURER′S WARRANTY
COVERAGE
ADD -ON OR MODIFIED PARTS
The 2001 and later small nonroad engines are warranted for
two years. If any emission related part on you engine (as
listed above) is defective, the part will be repaired or replaced
by Jonsered.
The use of add-on or modified parts can be grounds for
disallowing a warranty claim. Jonsered is not liable to cover
failures of warranted parts caused by the use of add-on or
modified parts.
OWNER′SWARRANTY RESPONSIBILITIES
HOW TO FILE A CLAIM
As the small nonroad engine owner, you are responsible for
the performance of the required maintenance listed in your
Operator′s Manual. Jonsered recommends that you retain all
receipts covering maintenance on your small nonroad engine,
but Jonsered cannot deny warranty solely for the lack of
receipts or for your failure to ensure the performance of all
scheduled maintenance. As the small nonroad engine owner,
you should, however, be aware that Jonsered may deny you
warranty coverage if your small nonroad engine or a part of it
has failed due to abuse, neglect, improper maintenance,
unapproved modifications or the use of parts not made or
approved by the original equipment manufacturer.You are
responsible for presenting your small nonroad engine to a
Jonsered authorized servicing dealer as soon as a problem
exists. The warranty repairs should be completed in a
reasonable amount of time, not to exceed 30 days.If you have
any questions regarding your warranty rights and
If you have any questions regarding your warranty rights and
responsibilities, you should contact your nearest authorized
servicing dealer or call Jonsered, at Sweden +46-36-146500.
WHERE TO GET WARRANTY SERVICE
Warranty services or repairs shall be provided at all Jonsered
authorized servicing dealers.
MAINTENANCE, REPLACEMENT AND
REPAIR OF EMISSION-RELATED PARTS
Any Jonsered approved replacement part used in the
performance of any warranty maintenance or repairs on
emission-related parts, will be provided without charge to the
owner if the part is under warranty.
responsibilities, you should contact your nearest authorized
servicing dealer or call Jonsered, at Sweden +46-36-146500.
EMISSION CONTROL WARRANTY PARTS
LIST
WARRANTY COMMENCEMENT DATE
The warranty period begins on the date small nonroad engine
is delivered.
1
2
3
4
Carburetor and internal parts
Intake pipe, airfilter holder and carburetor bolts.
Airfilter and fuelfilter covered up to maintenance schedule.
Ignition System
LENGTH OF COVERAGE
1
2
Spark Plug, covered up to maintenance schedule
Ignition Module
Jonsered warrants to the initial owner and each subsequent
purchaser that the engine is free from defects in materials and
workmanship which cause the failure of a warranted part for
a period of two years.
5
Muffler with catalytic converter
MAINTENANCE STATEMENT
The owner is responsible for the performance of all required
WHAT IS COVERED
REPAIR OR REPLACEMENT OF PARTS Repair or
replacement of any warranted part will be performed at no
charge to the owner at an approved Jonsered servicing
dealer. If you have any questions regarding your warranty
rights and responsibilities, you should contact your nearest
authorized servicing dealer or call Jonsered, at Sweden +46-
36-146500.
maintenance, as defined in the operator’s manual.
´®z+R@Q¶5x¨
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AMERICAN STANDARD SAFETY PRECAUTIONS
Other safety precautions
Safety precautions for chain saw
users
WARNING! Do not operate a chain saw with
(ANSI B 175.1-2000 Annex C)
one hand! Serious injury to the operator,
helpers, bystanders or any combination of
these persons may result from one-handed
operation. A chain saw is intended for two-
handed use.
!
Kickback safety precautions
WARNING! Kickback may occur when the
nose or tip of the guide bar touches an
object, or when the wood closes in and
pinches the saw chain in the cut.
Do not operate a chain saw when you are fatigued.
!
Use safety footwear; snug-fitting clothing, protective gloves,
and eye, hearing and head protection devices.
Tip contact in some cases may cause a
lightning fast reverse reaction, kicking the
guide bar up and back towards the operator.
Use caution when handling fuel. Move the chain saw at least
10 feet (3 m) from the fueling point before starting the engine.
Do not allow other persons to be near the chain saw when
starting or cutting with the chain saw. Keep bystanders and
animals out of the work area.
Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back towards the operator.
Do not start cutting until you have a clear work area, secure
footing and a planned retreat path from the falling tree.
Either of these reactions may cause you to
lose control of the saw which could result in
serious personal injury.
Keep all parts of your body away from the saw chain when the
engine is running.
Do not rely exclusively upon the safety
devices built into your saw. As a chain saw
user, you should take several steps to keep
your cutting jobs free from accident or
injury.
Before you start the engine, make sure that the saw chain is
not contacting anything.
Carry the chain saw with the engine stopped, the guide bar
and saw chain to the rear, and the muffler away from your
body.
With a basic understanding of kickback, you can reduce or
eliminate the element of surprise. Sudden surprise
contributes to accidents.
Do not operate a chain saw that is damaged, improperly
adjusted, or not completely and securely assembled. Be sure
that the saw chain stops moving when the throttle control
trigger is released.
Keep a good firm grip on the saw with both hands, the right
hand on the rear handle, and the left hand on the front handle,
when the engine is running. Use a firm grip with thumbs and
fingers encircling the chain saw handles. A firm grip will help
you reduce kickback and maintain control of the saw. Don’t let
go.
Shut off the engine before setting the chain saw down.
Use extreme caution when cutting small size brush and
saplings because slender material may catch the saw chain
and be whipped toward you or pull you off balance.
Make sure that the area in which you are cutting is free from
obstacles. Do not let the nose of the guide bar contact a log,
branch, or any other obstacle which could be hit while you are
operating the saw.
When cutting a limb that is under tension be alert for
springback so that you will not be struck when the tension in
the wood fibers is released.
Keep handles dry, clean and free of oil or fuel mixture.
Operate the chain saw only in well-ventilated areas.
Cut at high engine speeds.
Do not overreach or cut above shoulder height.
Do not operate a chain saw in a tree unless you have been
specifically trained to do so.
Follow manufacturer’s sharpening and maintenance
instructions for the saw chain.
Do not operate a chain saw above shoulder height.
Only use replacement bars and chains specified by the
manufacturer or the equivalent.
All chain saw service, other than the items listed in the
operator’s/owner’s safety and maintenance instructions,
should be performed by competent chain saw service
personnel.(For example, if improper tools are used to remove
the flywheel or if an improper tool is used to hold the flywheel
in order to remove the clutch, structural damage to the
flywheel could occur and subsequently cause the flywheel to
burst.)
When transporting your chain saw, use the appropriate guide
bar guard.
Note: This Annex is intended primarily for the consumer or
occasional user.
English – 35
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1150324-95
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2006-11-19
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