Jonsered CS 2172WH, CS 2172, CS 2166 Operator's Manual

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CS 2172WH CS 2172 CS 2166

Please read the oper ator’s manual carefully and make sure you understand the instructions before using the machine.

Operator ′′

′′

s manual

English

KEY T O SYMBOLS

Symbols on the mac hine:

ARNING! Chain saws can be dangerous! Careless or incorrect use can result in ser operator or others.

Please read the operator’s manual carefully and mak the instructions before using the machine.

Always wear:

• Approved protective helmet

• Approved hearing protection

• Protective goggles or a visor

This product is in accordance with applicab

Noise emission to the environment according to the European Comm Directive. The machine’s emission is speciﬁed in chapter Technical data and on label.

Chain brake, activated (right) Chain br (left)

Decompression v alve: The valve is to

reduce the pressure in the cylinder and

e starting easier. You should always

mak use the decompression valve when starting the machine.

Ignition;

in the chok automatically set the stop switch to the start position.

Adjustment of the oil pump

If your machine bears this symbol it is equipped with heated handles

Other symbols/decals on the mac hine refer to special cer

tiﬁcation requirements for certain markets.

ious or fatal injury to the

e sure you understand

le EC directives.

ake, not activated

choke:

e position. This should

Set the choke control

unity’s

Symbols in the operator’ s man

ual:

Switch off the engine b y moving the

witch to the STOP position

stop s before carrying out any checks or maintenance.

Always wear approved protective

ves.

glo

Regular cleaning is required.

Visual check.

Protective goggles or a visor must be

rn.

Refuelling.

Filling with oil and adjusting oil ﬂow.

The chain brake must be engaged when the chain sa

WARNING! Kickback ma y occur when the nose or tip of the guide bar touches an object, and cause a lightning f reverse reaction, kicking the guide bar up and towards the operator. Ma y cause serious personal injury.

w is started.

ast

–

English

Contents

KEY TO SYMBOLS

Symbols on the machine: ..................................... 2

Symbols in the operator’s manual: ....................... 2

CONTENTS

Contents

INTR

Dear Customer

WHA

What is what on the chain sa

GENERAL SAFETY PRECA

Bef

Important .............................................................. 6

Always use common sense .................................. 7

Personal protective equipment ............................. 7

Machine′s safety equipment ................................. 7

Cutting equipment ................................................ 10

ASSEMBL

Fitting the bar and chain

FUEL HANDLING

Fuel

Star

Bef

General working instructions ................................ 21

How to avoid kickback .......................................... 27

MAINTENANCE

Gener

Carburettor adjustment ......................................... 28

Carburettor with movement limiters ...................... 28

Checking, maintaining and servicing chain saw saf

Mufﬂer .................................................................. 31

Starter .................................................................. 32

Air ﬁlter ................................................................. 33

Spark plug ............................................................ 33

Lubricating the bar tip sprocket ............................ 33

Needle bearing lubrication ................................... 33

Adjustment of the oil pump ................................... 34

Cooling system ..................................................... 34

”Turbo Air Cleaning” centrifugal cleaning .............. 34

Winter use ............................................................ 35

Heated handles .................................................... 35

Maintenance schedule ......................................... 36

TECHNICAL D

Bar and chain combinations ................................. 38

Saw chain ﬁling and ﬁle gauges ........................... 38

EC-declaration of conformity ................................ 39

............................................................... 3

ODUCTION

, .................................................... 4

T IS WHAT?

w? ........................... 5

UTIONS

ore using a new chain saw .............................. 6

....................................... 16

...................................................................... 17

ARTING AND STOPPING

ting and stopping ........................................... 19

ORKING TECHNIQUES

ore use: ........................................................... 21

al ................................................................. 28

ety equipment .................................................. 29

ATA

echnical data ...................................................... 37

English

–

ODUCTION

INTR

Dear Customer ,

Cong ratulations on your choice to buy a Jonsered product! We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very

long time to come 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

ator

oper the second-hand v the operator

Good luck on using your Jonsered machine!

Jonsered has a policy of continuous product development and therefore reserves the right to modify the design and

ance of products without prior notice.

appear

. The purchase of one of our products gives you access to professional help with repairs and service

′

s manual as a valuable document. By following its

alue of the machine can be extended. If you will sell this machine, make sure that the buyer will get

′

s manual.

′

content (using, service, maintenance etc) the life span and

–

English

Jonsered XXXX

XXXX

XXXXXXX

Jonsered

Huskvarna, SWEDEN

WHA T IS WHA

JONSERED SERVICE

What is what on the c hain saw?

Cylinder cover 2 Front handle 3 Chain brake and front hand guard 4 Starter 5 Chain oil tank 6 Starter handle 7 Adjuster screws carburettor 8 Choke control/Start throttle lock 9 Rear handle 10 Stop switch (Ignition on/off switch.) 11 Fuel tank 12 Mufﬂer 13 Bar tip sprocket 14 Chain 15 Bar

16 Spike bumper 17 Chain catcher 18 Clutch cover 19 Rear handle with right hand guard 20 Throttle control 21 Throttle lockout 22 Decompression valve 23 Combination spanner 24 Chain tensioning screw 25 Operator′s manual 26 Transport guard 27 Switch for heated handle (CS 2172WH) 28 Information and warning decal 29 Product and serial number plate

English –

•

GENERAL SAFETY PRECA UTIONS

Bef ore using a new chain saw

Please read this manual carefully.

• Check that the cutting equipment is correctly ﬁtted and adjusted.

See instructions under the heading

Assembly.

• Refuel and start the chain saw. See the instructions under the headings Fuel Handling and Star Stopping.

• Do not use the chain saw until sufﬁcient chain oil has reached the chain. Lubricating cutting equipment.

• Long-term exposure to noise can result in permanent

ing impairment. So always use approv ed hearing

hear protection.

See instructions under the heading

ARNING! Under no circumstances may the design of the machine be modiﬁed without the permission of the manufacturer. Always use genuine accessories. Non-authorized modiﬁcations and/or accessories can result in serious personal injury or the death of the operator or others.

ARNING! A 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.

ARNING! The inside of the mufﬂer contain chemicals that may be carcinogenic. Avoid contact with these elements in the event of a damaged mufﬂer.

ARNING! Long term inhalation of the engine’s exhaust fumes, chain oil mist and dust from sawdust can represent a health risk.

ARNING! This machine produces an electromagnetic ﬁeld during operation. This ﬁeld may under some circumstances interfere with active or passive medical implants. To reduce the risk of serious or fatal injury, we recommend persons with medical implants to consult their physician and the medical implant manufacturer before operating this machine.

ting and

ARNING! Never allow children to use or be in the vicinity of the mac machine is equipped with a springloaded stop switch and can be started by low speed and force on the starter handle, even small children under some circumstances can produce the force necessary to start the machine. This can mean a risk of serious personal injury. Therefore remove the spark plug cap when the machine is not under close supervision.

hine. As the

Impor tant

IMPOR TANT! This chain saw for forest service is designed for forest

ork such as felling, delimbing and cutting.

w You should only use the saw with the bar and chain

combinations we recommend in the chapter Technical data.

Never use the machine if you are fatigued, while under the inﬂuence of alcohol or dr that could affect your vision, alertness, coordination or judgement.

Wear personal protective equipment. See instructions under the heading ”P

Do not modify this product or use it if it appears to have been modiﬁed by 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 man the headings Cutting equipment and Technical data.

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.

ARNING! Running an engine in a conﬁned or badly ventilated area can result in death due to asphyxiation or carbon monoxide poisoning.

ARNING! 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.

ugs, medication or anything

ersonal protective equipment”.

ual. See instructions under

–

English

GENERAL SAFETY PRECA UTIONS

ways use common sense

It is not possib le to cover every conceivab le situation you

ace when using a chain saw. Always exercise care

can f 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 chain saw usage if possible. Your dealer, forestry school or your library can provide information about which training materials and courses are available.

Work is constantly in progress to improv e the design and technology - impro efﬁciency. Visit your dealer regularly to see whether you can beneﬁt from new features that have been introduced.

vements that increase your safety and

ersonal protective equipment

ARNING! Most chain saw accidents

happen when the c

operator. You must use approved personal protective equipment whenever you use the machine. Per sonal 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.

Alw ays wear:

• 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

Generally clothes should be close-ﬁtting without

icting your freedom of movement.

restr

hain touches the

Mac hine

In this section the machine’ s safety features and their function are e 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

ied out correctly and if service and/or repairs are not

carr carried out professionally. If you need further information please contact your nearest service workshop.

′′

s safety equipment

xplained. For inspection and maintenance

WARNING! Never use a machine with defective safety components. Safety equipment must be inspected and 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.

Chain brake and fr ont hand guard

our chain saw is equipped with a chain brake that is designed to stop the chain if y brake reduces the risk of accidents, but only you can prevent them.

Take care when using your saw and make sure the

kback zone of the bar never touches any object.

kic

• The chain brake (A) can either be activated manually

y your left hand) or automatically by the inertia

(b release mechanism.

• The brake is applied when the front hand guard (B) is

pushed f

orwards.

ou get a kickback. The chain

T ANT! Sparks can come from the mufﬂer, the bar

IMPOR and chain or other sources. Always have ﬁre extinguishing tools available if you should need them. Help prevent forest ﬁres.

English

–

GENERAL SAFETY PRECAUTIONS

• This movement activates a spring-loaded mechanism that tightens the brake band (C) around the engine drive system (D) (clutch drum).

• The way the chain brake is activ ated, either manually or automatically b 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 kickbac k zone of the bar is f designed to be activated by the inertia in the kickback direction.

y the inertia release mechanism,

arthest away from you the chain brake is

• The front hand guard is not designed solely to activate the chain br reduces the risk of your left hand hitting the chain if you lose grip of the front handle.

• The chain brake must be engaged when the chain sa

• Use the chain brake as a ”parking brake” when star 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 bac

ake. Another important feature is that it

w is started to prevent the saw chain from rotating.

ting and when moving over short distances, to

kwards, towards the front handle.

If the kickback is less violent or the kickback zone of the bar is closer to y activated manually by the movement of y our left hand.

• In the felling position the left hand is in a position that es manual activation of the chain brake

mak 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.

ou the chain brake will be

• Kickback can be very sudden and violent. Most kbacks are minor and do not always activate the

kic chain brake. If this happens you should hold the chain saw ﬁrmly and not let go.

8 – English

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 ma y 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.

GENERAL SAFETY PRECAUTIONS

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.

Will my inertia activated chain brake always activate during kickback in the event of a kickback?

No. First y our brak e m ust be in w orking order . Testing the brake is simple, see instructions under the heading Checking, maintaining and servicing chain saw safety equipment. We recommend you do bef ore you begin each work session. 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?

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 ma y be activated b ut 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

The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you g rasp 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.

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).

Right hand guard

Apart from protecting your hand if the chain jumps or snaps, the right hand guard stops branches and twigs from interfering with your grip on the rear handle.

Vibration damping system

Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier.

The machine transfer of vibration between the engine unit/cutting equipment and the machine chain saw, including the cutting equipment, is insulated from the handles by vibration damping units.

Cutting hardwoods (most broadleaf trees) creates more vibr with cutting equipment that is blunt or faulty (wrong type or badly sharpened) will increase the vibration level.

′s vibration damping system reduces the

′s handle unit. The body of the

ation than cutting softwoods (most conifers). Cutting

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.

English – 9

GENERAL SAFETY PRECAUTIONS

Stop switch

Use the stop switch to switch off the engine.

Mufﬂer

The mufﬂer is designed to keep noise levels to a minim um 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!

In areas with a hot, dry climate there is a high risk of ﬁres. These areas are sometimes subject to go requiring among other things the mufﬂer must be equipped with an approved type of spark arrestor mesh.

vernment rules

• Obtain optimal cutting performance.

• Extend the life of cutting equipment.

• Avoid increasing vibration levels.

General rules

• Only use cutting equipment recommended by us! See instructions under the heading Technical data.

• Keep the chain’s cutting teeth properly

sharpened! Follow our instructions and use the recommended ﬁle gauge.

sharpened chain increases the risk of accidents.

• Maintain the correct depth gauge setting! Follow

our instructions and use the recommended depth gauge clearance.

the risk of kickback.

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.

A damaged or badly

Too large a clearance increases

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.

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

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

10 – English

Keep cutting equipment well lubricated and

•

properly maintained!

more likely to break and lead to increased wear on the bar, chain and drive sprocket.

A poorly lubricated chain is

Cutting equipment designed to reduce kickback

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 only way to avoid kickback is to make sure that the kickback zone of the bar never touches anything.

By using cutting equipment with ”built-in” kickback reduction and keeping the chain sharp and wellmaintained you can reduce the effects of kickback.

Bar

The smaller the tip radius the lower the chance of kickback.

GENERAL SAFETY PRECAUTIONS

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.

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.

Bar

• Length (inches/cm)

• 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.

Chain

• Chain pitch (inches)

• Drive link width (mm/inches)

• Number of drive links.

Sharpening your chain and adjusting depth gauge setting

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.

• A sharp chain eats its way through the wood and produces long, thic

• The cutting part of the chain is called the cutter and consists of a cutting tooth (A) and the depth gauge

The cutters cutting depth is determined by the

(B). difference in height between the two (depth gauge setting).

k chips or shavings.

• Number of drive links. The number of drive links is mined by the length of the bar, the chain pitch

deter and the number of teeth on the bar tip sprocket.

• Bar groove width (inches/mm). The groove in the bar

ust match the width of the chain drive links.

• Chain oil hole and hole for chain tensioner. The bar

must be matched to the chain saw design.

When you sharpen a cutting tooth there are four important

actors to remember.

f 1 Filing angle

2 Cutting angle

3 File position

English – 11

GENERAL SAFETY PRECAUTIONS

4 Round ﬁle diameter

It is very difﬁcult to sharpen a chain correctly without the

ight equipment. We recommend that you use our ﬁle

r gauge. This will help you obtain the maximum kickback reduction and cutting performance from your chain.

See instructions under the heading Technical data for

ormation about sharpening your chain.

inf

WARNING! Departure from the sharpening instructions considerably

increases the risk of kickback.

Sharpening cutting teeth

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 recommended for the chain ﬁtted to your chain saw.

• File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (5/32") the chain is w

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.

Adjustment of depth gauge setting

orn out and should be replaced.

min 4 mm

(5/32")

WARNING! The risk of kickback is increased if the depth gauge setting is too large!

• Check that the chain is correctly tensioned. A slack chain will mo sharpen correctly.

• Always ﬁle cutting teeth from the inside face. Reduce the pressure on the retur one side ﬁrst, then turn the chain saw over and ﬁle the teeth on the other side.

12 – English

ve sideways, making it more difﬁcult to

n stroke. File all the teeth on

• 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.

• You will need a ﬂat ﬁle and a depth gauge tool. We recommend that y acheive the correct depth gauge setting and bevel f or the depth gauge.

ou use our depth gauge tool to

GENERAL SAFETY PRECAUTIONS

• 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.

Tensioning the chain

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.

Check the chain tension every time you refuel. NOTE! A

w chain has a running-in period during which you

ne should check the tension more frequently.

Tension the chain as tightly as possible, but not so tight

ou cannot pull it round freely by hand.

that y

• Use the combination spanner to tighten the bar nuts while lifting the tip of the bar at the same time that you can pull the chain round freely by hand and that it does not sag from the underside of the bar.

The position of the chain tensioning screw on our chain

ws varies from model to model. See instructions under

sa the heading What is what? to ﬁnd out where it is on your model.

. Check

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.

As a chain saw manufacturer we have developed an optimal chain oil which, with its v 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.

Never use waste oil! Using waste oil can be dangerous to you and damage the machine and environment.

egetable oil base, is also

• Undo the bar nuts that hold the clutch cover/chain ake. Use the combination spanner. Then tighten the

br bar nuts by hand as tight as you can.

• Raise the tip of the bar and stretch the chain by

tightening the chain tensioning scre combination spanner. Tighten the chain until it does not sag from the underside of the bar.

w using the

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.

Filling with chain oil

• All our chain saws have an automatic chain lubrication system. On some models the oil ﬂow is also adjustable.

• The saw chain oil tank and the fuel tank are designed so that the fuel r

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).

uns out before the saw chain oil.

English – 13

GENERAL SAFETY PRECAUTIONS

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) a throttle you should see a distinct line of oil on the light surface.

If the chain lubrication is not working:

• Check that the oil channel in the bar is not obstructed. Clean if necessar

• Check that the groove in the edge of the bar is clean. Clean if necessar

way. After 1 minute running at 3/4

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)

A B

Regularly check the degree of wear on the drive sprocket. Replace if w whenever you replace the chain.

Needle bearing lubrication

Both versions of sprockets have a needle bearing on the drive shaft, which has to be greased regularly (once a week). NOTE! Use a high-quality bearing grease or engine oil.

ear is excessive. Replace the drive sprocket

• Check that the bar tip sprocket turns freely and that

If the chain lubrication system is still not working after carr you should contact your service agent.

14 – English

icating hole in the tip sprocket is not blocked.

the lubr Clean and lubricate if necessary.

ying out the above checks and associated measures

Checking wear on cutting equipment

Check the chain daily for:

• Visible cracks in rivets and links.

• Whether the chain is stiff.

• Whether rivets and links are badly worn. Replace the saw chain if it exhibits any of the points

abo

ve.

We recommend you compare the existing chain with a new chain to decide how badly the existing chain is worn.

File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (5/32") the chain is

orn out and should be replaced.

GENERAL SAFETY PRECAUTIONS

Bar

Check regularly:

• Whether there are burrs on the edges of the bar. Remo

ve these with a ﬁle if necessary.

• Whether the groove in the bar has become badly

orn. Replace the bar if necessary.

• Whether the tip of the bar is uneven or badly worn. If

w forms on the underside of the bar tip this is

a hollo due to running with a slack chain.

WARNING! Most chain saw accidents happen when the chain touches the operator.

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 instructions.

Avoid situations where there is a risk of kickback. See instructions under the heading Machine

Use the recommended protective equipment and check its condition. See instructions under the heading General working instructions.

Check that all the chain saw safety features are working. See instructions under the headings General working instructions and General safety precautions.

′′

s safety equipment.

• To prolong the life of the bar you should turn it over

daily

English – 15

ASSEMBLY

Fitting the bar and chain

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.

Remove the bar nuts and remove the clutch co ver (chain brake). Take off the transportation ring (A).

correctly located in the groove in the bar. Tighten the bar nuts ﬁnger tight.

Tension the chain by turning the chain tensioning screw

kwise using the combination spanner. The chain

cloc should be tensioned until it does not sag from the underside of the bar. See instructions under the heading Tensioning the chain.

Fit the bar over the bar bolts. Place the bar in its rearmost

Place the chain over the drive sprocket locate it

position. 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

orward on the top edge of the bar.

f 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

16 – English

The chain is correctly tensioned when it does not sag from the underside of the bar hand. Hold up the bar tip and tighten the bar nuts with the combination spanner.

When ﬁtting a new chain, the chain tension has to be

ked frequently until the chain is run-in. Check the

chec chain tension regularly. A correctly tensioned chain ensures good cutting performance and long life.

, but can still be turned easily by

Fitting a spike bumper

To ﬁt a spike bumper – contact your service agent.

FUEL HANDLING

Fuel

Note! The machine is equipped with a two-stroke engine and must always been 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.

WARNING! Always ensure there is adequate ventilation when handling fuel.

Petrol

• Use good quality unleaded or leaded petrol. Engines equipped with catalytic converters must be run on unleaded fuel mixtures.

• 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 giv es 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.

Environment fuel

JONSERED recommends the use of alkylate fuel, either Aspen two-stroke fuel or environment fuel for four-stroke engines blended with two-stroke oil as set out below . Note that carburettor adjustment may be necessary when changing the type of fuel (see the instructions under the heading Carburettor).

Running-in

Avoid running at a too high speed during the ﬁrst 10 hours.

Two-stroke oil

• For the best results and performance use JONSERED two-stroke oil, which is specially formulated for our two-stroke engines.

• JONSERED provides two stroke oils adapted for

erent application areas and climates. Please

diff contact your dealer for information about the best options for your product and area of application.

• Never use two-stroke oil intended for water-cooled outboard engines oil.

• Never use oil intended for four-stroke engines.

, sometimes referred to as outboard

Mixing ratio

1:50 (2%) with JONSERED two-stroke oil. 1:33 (3%) with oils class JASO FB or ISO EGB formulated

or air-cooled, two-stroke engines.

Petrol, litre Two-stroke oil, litre

2% (1:50) 3% (1:33)

5 10 0,20 0,30 15 0,30 0,45 20 0,40 0,60

0,10 0,15

Mixing

• 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.

• Mix (shake) the fuel mixture thoroughly before ﬁlling the machine’

• 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.

s fuel tank.

Chain oil

• The chain lubrication system is automatic and we recommend the use of special oil (chain oil) with good adhesion characteristics.

• Never use waste oil. This results in damage to the oil pump, the bar and the chain.

English – 17

FUEL HANDLING

• 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 ov erload the oil pump and result in damage to the oil pump components.

• Contact your service agent when choosing chain oil.

Fuelling

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 awa y from the refuelling area before starting.

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! 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.

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-strok

• Move the machine at least 3 m from the refuelling point before starting it.

• 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.

2 If you have spilt fuel on yourself or your clothes,

change your clothes. W ash an y part of your body that has come in contact with fuel. Use soap and water.

3 If the machine is leaking fuel. Check regularly for leaks

from the fuel cap and fuel lines

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.

e oil).

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

or 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.

• The bar guard must always be ﬁtted to the cutting attachment when the machine is being tr 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.

• Secure the machine during transport.

ansported or

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.

Ensure the machine is cleaned and that a complete service is carried out before long-term storage.

18 – English

STARTING AND STOPPING

Starting and stopping

WARNING! Note the following before starting:

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.

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.

If the machine is ﬁtted with a decompression valve (A): Press the v make starting easier. You should always use the decompression valve when starting the machine. Once the machine has started the valve will automatically return to its original setting.

alve to reduce the pressure in the cylinder and

Warm engine

Use the same procedure as for starting a cold engine but without setting the choke control in the choke position. The correct choke/start throttle setting is obtained by moving the choke control to the choke position and then pushing it in again.

Starting

Ignition: Slide the ignition switch to the left. Choke: Set the choke control in the choke position. Start throttle: The correct choke/start throttle setting is

obtained by moving the control to the choke position.

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.

hand.

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.

Never twist the starter cord around your

English – 19

STARTING AND STOPPING

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.

As the chain brake is still engaged the speed of the engine

ust be set to idling as soon as possible, this is achieved

m by quickly disengaging the throttle lock. This prevents unnecessary wear to the clutch, clutch drum and brake band.

Note! Reactivate the chain brake by pushing the front hand guard bac is now ready for use.

• Never start the machine indoors. Exhaust fumes can be dangerous if inhaled.

• Observe your surroundings and make sure that there is no r the cutting equipment.

k towards the front handle. The chain saw

isk of people or animals coming into contact with

Stopping

The engine is stopped by pushing the stop switch to the stop position.

• Always hold the saw with both hands. The right hand should be on the rear handle 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.

20 – English

, and the left hand on the

WORKING TECHNIQUES

Before use:

1 Check that the chain brake works correctly and is not

damaged. 2 Check that the rear right hand guard is not damaged. 3 Check that the throttle lockout works correctly and is

not damaged. 4 Check that the stop switch works correctly and is not

damaged. 5 Check that all handles are free from oil. 6 Check that the anti vibration system works and is not

damaged. 7 Check that the mufﬂer is securely attached and not

damaged. 8 Check that all parts of the chain saw are tightened

correctly and that the 9 Check that the chain catcher is in place and not

damaged. 10 Check the chain tension.

General working instructions

IMPORTANT! This section describes basic safety rules for using a

w. This information is never a substitute for

chain sa professional skills and experience. If you get into a situation where you feel unsafe, stop and seek expert advice. Contact your chain sa w dealer, service agent or an experienced chain saw user. Do not attempt an y task that you feel unsure of!

Before using a chain saw you must understand the

ects of kickback and how to avoid them. See

eff instructions under the heading How to avoid kickback.

Before using a chain saw you must understand the

erence between cutting with the top and bottom

diff edges of the bar. See instructions under the headings How to avoid kickbac k and Machine’ s saf ety equipment.

Wear personal protective equipment. See instructions under the heading ”Personal protective equipment”.

Basic safety rules

1 Look around you:

• T o ensure that people , animals or other things cannot

ect your control of the machine.

aff

• To make sure that none of the above might come

within reach of y

y are not damaged or missing.

our saw or be injured by falling trees.

CAUTION! Follow the instructions abov e, but do not use a

w in a situation where you cannot call for help in

chain sa case of an accident.

2 Do not use the machine in bad weather, such as

3 Take great care when removing small branches and

4 Make sure you can move and stand saf ely. Check the

5 Take great care when cutting a tree that is in tension.

6 Before moving your chain saw switch off the engine

7 When you put the chain saw on the ground, lock the

og, heavy rain, strong wind, intense cold, etc.

dense f Working in bad weather is tiring and often brings added risks, such as icy ground, unpredictable felling direction, etc.

void cutting bushes (i.e. cutting many small branches

a at the same time). Small branches can be grab bed by the chain and thrown back at you, causing serious injury.

area around y branches, ditches, etc.) in case you have to move suddenly. Take great care when working on sloping ground.

A tree that is in tension ma 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.

and loc 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.

w chain using the chain brake and ensure you have

sa a constant view of the machine. Switch the engine off before leaving your chain saw for any length of time.

ou for possible obstacles (roots, rocks,

y spring back to its normal

k the chain using the chain brake. Carry the

WARNING! Sometimes chips get stuck in the clutch cover causing the chain to jam. Always stop the engine before cleaning.

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 y 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

our left hand on the front

English – 21

WORKING TECHNIQUES

effect of kickback and lets you keep the chain saw under control.

3 Most kickback accidents happen during limbing. Mak e

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

kback zone of the bar accidentally touches a

kic branch, nearby tree or some other object.

Do not let go of the handles!

5 You must have a steady stance in order to have full

control over the chain saw. Never work standing on a ladder, in a tree or where you do not hav e ﬁrm ground to stand on.

6 Always use a fast cutting speed, i.e. full throttle. 7 T ak e great care when y ou cut with the top edge of the

, i.e. when cutting from the underside of the object.

bar 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.

Have control over the workpiece. If the pieces you intend to cut are small and light, 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. Ne ver saw stac ked logs or branches without ﬁrst separating them. Only sa w one log or one piece at a time. Remove the cut pieces to keep your working area safe.

Never use the chain saw above shoulder height

and try not to cut with the tip of the bar. Ne ver use the chain saw one-handed!

22 – English

y can jam in the

8 Unless the user resists this pushing force there is a

isk that the chain saw will move so far bac kwards that

r only the kickback zone of the bar is in contact with the tree, which will lead to a kickback.

Cutting with the bottom edge of the bar, i.e. from the top of the object do 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.

9 Follow the instructions on sharpening and maintaining

our bar and chain. When you replace the bar and

wnwards, is known as cutting on

WORKING TECHNIQUES

chain use only combinations that are recommended

by us. See instructions under the headings Cutting

equipment and Technical data.

Basic cutting technique

WARNING! Never use a chain saw by holding it with one hand. A chain saw is

not safely controlled with one hand. Always have a secure, ﬁrm grip around the handles with both hands.

General

• Always use full throttle when cutting!

• Reduce the speed to idle after every cut (running the

engine f

or too long at full throttle without any load, i.e. without any resistance from the chain during cutting, can lead to serious engine damage).

• Cutting from above = Cutting on the pull stroke.

• Cutting from below = Cutting on the push stroke. Cutting on the push stroke increases the risk of kickback.

uctions under the heading How to avoid

See instr kickback.

Terms

Cutting = General term for cutting through wood. Limbing = Cutting branches off a felled tree. Splitting = When the object you are cutting breaks off

bef

ore 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.

4 Is there a risk of kickback?

5 Do the conditions and surrounding terrain affect how

ely you can stand and move about?

saf

T wo 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 b y cutting in

o stages; from the top and from the bottom. You need to

tw support the object so that it will not trap the chain or split during cutting.

IMPORTANT! If the chain jams in the cut: stop the engine! Don’t try to pull the chain saw free. If you do y ou may be injured by the chain when the chain saw suddenly breaks free. Use a le ver to open up the cut and free the chain saw.

The following instructions describe how to handle the commonest situations y using a chain saw.

Limbing

When limbing thick branches you should use the same approach as for cutting.

Cut difﬁcult branches piece by piece.

ou are likely to encounter when

2 Make sure the object you are cutting will not split.

3 Make sure the chain will not strike the ground or any

other object dur

ing or after cutting.

Cutting

WARNING! Never attempt to cut logs while they are in a pile or when a couple of logs are lying together. Such procedures drastically increase the risk of kickback which can result in a serious or fatal injury.

If you have a pile of logs, each log you attempt to cut should be removed from the pile, placed on a saw horse or runners and cut individually.

Remove the cut pieces from the cutting area. By leaving them in the cutting area, you increase the risk for

English – 23

WORKING TECHNIQUES

inadvertently getting a kickback, as well as increasing the risk of losing your balance while working.

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.

Cut all the way through the log from above. Avoid letting the chain touch the g full throttle but be prepared for what might happen.

round as you ﬁnish the cut. Maintain

Start by cutting from above (about 1/3 of the way through). Finish by cutting from below so that the two cuts meet.

Tree felling technique

IMPORTANT! 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!

Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1/2 tree lengths. Make sure that no-one else is in this ”risk zone” before or during felling.

If it is possible (can you turn the log?) stop cutting about 2/3 of the w

Turn the log and ﬁnish the cut from the opposite side.

The log is supported at one end. There is a high risk that it will split.

Start by cutting from below (about 1/3 of the way through). Finish by cutting from above so that the two cuts meet.

The log is supported at both ends. There is a high risk that the chain will jam.

24 – English

ay through the log.

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.

Once you have decided which wa y you want the tree to fall

ou must judge which way the tree would fall naturally.

y Several factors affect this:

• Lean of the tree

• Bend

• Wind direction

• Arrangement of branches

• Weight of snow

• Obstacles within the reach of the tree: for example, other trees

• Look for signs of damage and rot in the stem, this makes it more probably that the tree will break and start to fall before you expect it to.

Y ou ma y ﬁnd you are f orced to let the tree f all in its natural direction because it is impossib make it fall in the direction you ﬁrst intended.

Another very important factor, which does not affect the

elling direction but does affect your saf ety , is to make sure

f the tree has no damaged or dead branches that might break off and hit you during felling.

The main point to avoid is letting the tree fall onto another

. It is very dangerous to remove a trapped tree and

tree

, power lines, roads and buildings.

le or dangerous to try to

WORKING TECHNIQUES

there is high accident risk. See instructions under the heading Freeing a tree that has fallen badly.

IMPORTANT! During critical felling operations, hearing protectors should be lifted immediately when sawing is completed so that sounds and warning signals can be heard.

further forward in the terrain, where you would like the tree to fall (2). Stand on the right-hand side of the tree, behind the saw, and cut with a pull stroke.

Next make the bottom cut so that it ﬁnishes exactly at the end of the top cut.

Clearing the trunk and preparing your retreat

Delimb the stem up to shoulder height. It is safer to work from the top down and to have the tree between you and the saw.

Remove any undergrowth from the base of the tree and

k the area for obstacles (stones, branches, holes,

chec etc.) so that you have a clear path of retreat when the tree starts to fall. Your path of retreat should be roughly 135 degrees away from the intended felling direction.

1 Danger zone 2 Retreat path 3 Felling direction

Felling

WARNING! Unless you have special training we advise you not to fell trees

with a diameter larger than the bar length of your saw!

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 cut you begin with the top cut. Aim using to the saw’s f elling direction mark (1) tow ard a goal

The directional cuts should run 1/4 of the diameter through the tr bottom cut should be 45

The line where the two cuts meet is called the directional cut line right angles (90

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 3-5 cm (1.5-2 inches) above the bottom directional cut.

Set the spike bumper (if one is ﬁtted) just behind the felling hinge 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.

unk and the angle between the top cut and

°.

. This line should be perfectly horizontal and at

°) to the chosen felling direction.

. Use full throttle and advance the chain/bar slowly

English – 25

WORKING TECHNIQUES

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.

The felling hinge controls the direction that the tree falls in.

Freeing a tree that has fallen badly

Freeing a ”trapped tree”

It is very dangerous to remove a trapped tree and there is high accident risk.

Never try to fell the tree that is trapped. Never work in the risk zone of the hanging trapped tree.

All control over the felling direction is lost if the felling hinge is too narro cuts and felling cut are badly placed.

When the felling cut and directional cut are complete the tree should star wedge or breaking bar.

We recommend that you use a bar that is longer than the diameter of the tree and directional cuts with single cutting strokes. See instructions under the heading Technical data section to ﬁnd out which lengths of bar are recommended for your saw.

w or non-existent, or if the directional

t to fall by itself or with the aid of a felling

, so that you can make the felling cut

The safest method is to use a winch.

• Tractor-mounted

• Portable

Cutting trees and branches that are in tension

Preparations: Work out which side is in tension and where the point of maximum tension is (i.e. where it would break if it was bent even more).

Decide which is the safest way to release the tension and whether y situations the only safe method is to put aside your chain saw and use a winch.

General advice:

Position yourself so that you will be clear of the tree or branch when the tension is released.

Make one or more cuts at or near the point of maximum tension. necessary to reduce the tension and make the tree or branch break at the point of maximum tension.

ou are able to do it safely. In complicated

Make as many cuts of sufﬁcient depth as

There are methods for felling trees with a diameter larger than the bar length. much greater risk that the kickback zone of the bar will come into contact with the tree.

26 – English

However these methods involve a

Never cut straight through a tree or branch that is in tension!

If you must cut across tree/limb, make two to three cuts, one inch apart, one to two inches deep.

WORKING TECHNIQUES

Continue to cut deeper until tree/limb bends and tension is released.

Cut tree/limb from outside the bend, after tension has been released.

How to avoid kickback

WARNING! Kickback can happen very suddenly and violently; kic king 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.

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 only occurs if the kickback zone of the bar touches an object.

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.

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.

Keep the trunk between you and the chain saw as you

ve along the trunk.

Cutting the trunk into logs

See instructions under the heading Basic cutting technique.

Kickback always occurs in the cutting plane of the bar.

mally the chain saw and bar are thrown backwards

Nor and upwards towards the user. However, the chain saw may move in a diff erent direction depending on the wa y it was being used when the kickback zone of the bar touched the object.

English – 27

MAINTENANCE

General

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).

Carburettor adjustment

The carburettor can be designed in different ways, depending on existing environmental and emissions legislation. Some chain saws are equipped with movement limiters on the carburettor’s adjuster screws. These limit the adjustment possibilities to a maximum of a 1/2 turn.

When your chain saw is equipped with a carburettor that

eatures movement limiters, the carburettor should be

f adjusted according to the instructions under the heading Carburettor with movement limiters.

Carburettor with movement limiters

Your Jonsered product has been designed and manufactured to speciﬁcations that reduce harmful exhaust fumes.

Function

• The carburettor governs the engine’s speed via the throttle control. Air and fuel are mixed in the carburettor. The air/fuel mixture is adjustable. Correct adjustment is essential to get the best performance from the machine.

• Adjusting the carburettor means that the engine is adapted to local oper altitude, petrol and the type of 2-stroke oil.

• The carburettor has three adjustment controls:

ating conditions, e.g. climate,

- L = Low speed jet

- H = High speed jet

- T = Idle adjustment screw

• The L and H-jets are used to adjust the supply of fuel to match the r 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. higher idle speed; turning it anti-clockwise gives a lower idle speed.

ate that air is admitted, which is

If the T-screw is turned clockwise this gives a

Basic settings and running in

The basic carburettor settings are adjusted during testing at the factory . A void 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: 2700 rpm

Fine adjustment

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.

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.

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.

• 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

uctions and let it warm up for 10 minutes.

instr

• Place the machine on a ﬂat surface so that the bar

way from you and so that the bar and chain do

points a not come into contact with the surface or other objects.

28 – English

MAINTENANCE

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.

Fine adjustment of the idle speed T

Adjust the idle speed with the T-screw. If it is necessary to re-adjust, turn the T-screw clockwise while the engine is running, until the chain starts to rotate. Then turn anticlockwise 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.

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.

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! 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.

CAUTION! There is an integrated speed governor in the ignition system that limits the maxim rpm. The maximum speed will not exceed 13600 rpm when the high speed jet is adjusted (screwed in). When the speed governor is activated, you will get the same sound experience as when the chain saw 4-cycles.

To adjust the carburettor correctly you should contact a mechanic with access to a re

CAUTION! As the spark is cut off, the rev counter does not show speeds higher than 13600 rpm.

Correctly adjusted carburettor

When the carburettor is correctly adjusted the machine accelerates without hesitation and 4-cycles a little at full throttle. It is also important that the chain does not rotate at idle. If the L-jet is set too lean it may cause starting difﬁculties and poor acceleration. If the H-jet is set too lean the machine will have less power, poor acceleration and could suffer damage to the engine.

If the high speed jet is screwed in too far,

um speed to 13600

v counter.

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 y our machine fails any of the checks described below we recommend that you take it to your service workshop.

Chain brake and front hand guard

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.

Regularly check that the brake band is at least 0.6 mm

k at its thinnest point.

thic

Checking the front hand guard

Make sure the front hand guard is not damaged and that there are no visible defects such as cracks.

Move the front hand guard forwards and back to make

ves freely and that it is securely anchored to the

sure it mo clutch cover.

English – 29

MAINTENANCE

Checking the inertia brake release

Place the chain saw, with the engine switched off, on a stump or other stable surface. Release the front handle and let the saw fall by its own weight, rotating around the rear handle towards the stump.

When the bar hits the stump the brake should be applied.

Checking the brake trigger

Place the chain saw on ﬁrm ground and start it. Make sure the chain does not touch the ground or any other object. See the instructions under the heading Start and stop.

Apply full throttle and activate the chain brake by tilting

our left wrist forward onto the front hand guard. Do not let

y go of the front handle.

immediately.

The chain should stop

Throttle lockout

• Make sure the throttle control is locked at the idle setting when the throttle lockout is released.

• Press the throttle lockout and make sure it returns to

iginal position when you release it.

its or

• Check that the throttle control and throttle lockout

ve freely and that the return springs work properly.

Grasp the chain saw ﬁrmly, wrapping your ﬁngers and thumbs around the handles

30 – English

• Start the chain saw and apply full throttle. Release the throttle control and chec remains stationary. If the chain rotates when the throttle control is in the idle position you should check the carburettor idle adjustment.

k that the chain stops and

Chain catcher

MAINTENANCE

Mufﬂer

Check that the chain catcher is not damaged and is ﬁrmly attached to the body of the chain saw.

Right hand guard

Check that the right hand guard is not damaged and that there are no visible defects, such as cracks.

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.

Never use a machine that has a faulty mufﬂer.

Regularly check that the mufﬂer is securely attached to the machine

Some mufﬂers are equipped with a special spark arrestor mesh. If your machine has this type of mufﬂer , y ou 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 b cause damage to the cylinder and piston. Never use a machine with a mufﬂer that is in poor condition.

use a mufﬂer if the spark arrestor mesh is missing or defective.

locked the machine will overheat and this will

Never

Stop switch

Start the engine and make sure the engine stops when you move the stop switch to the stop setting.

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 h 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

ydrocarbons (HC), nitrogen

English – 31

MAINTENANCE

enclosed or badly ventilated area. Good air circulation should always prevail when working in snowy hollows, ravines or in conﬁned conditions.

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

• Loosen the screws that hold the starter against the crankcase and remove the starter.

handle. Make a secure knot in the end of the starter cord.

Tensioning the recoil spring

• Hook the starter cord in the notch in the pulley and turn the starter pulley about 2 turns clockwise.

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.

• Pull out the cord approx. 30 cm and hook it into the notch in the r by letting the pulley rotate slowly backwards.

• Undo the screw in the centre of the pulley and remove the pulle 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

32 – English

im of the pulley . Release the recoil spring

y. Insert and fasten a new starter cord to the

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

ter.

star

• 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.

MAINTENANCE

Fitting the starter

• T o 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

The air ﬁlter must be regularly cleaned to remove dust and dirt in order to avoid:

• Carburettor malfunctions

• Starting problems

• Loss of engine power

• Unnecessary wear to engine parts.

• Excessive fuel consumption.

• Remove the air ﬁlter after taking off the air ﬁlter cover. When reﬁtting mak against the ﬁlter holder. Clean the ﬁlter by brushing or shaking it.

e sure that the air ﬁlter seals tightly

Spark plug

The spark plug condition is inﬂuenced by:

• Incorrect carburettor adjustment.

• An incorrect fuel mixture (too much or incorrect type of oil).

• A dirty air ﬁlter.

These factors cause deposits on the spark plug electrodes starting difﬁculties.

If the machine is low on power, difﬁcult to start or runs poor 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.

Note! Always use the recommended spark plug type! Use of the wrong spar Check that the spark plug is ﬁtted with a suppressor.

, which may result in operating problems and

ly at idle speed: always check the spark plug ﬁrst

k plug can damage the piston/cylinder.

Lubricating the bar tip sprocket

The ﬁlter can be cleaned more thoroughly by washing it in

ater and detergent.

w 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.

must always be replaced.

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.

A damaged air ﬁlter

Lubricate the bar tip sprocket each time you refuel. Use the special grease gun and a good quality bearing grease.

Needle bearing lubrication

The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly (once a week). CAUTION! Use a high-quality bearing grease or engine oil. See instructions under the heading Cutting equipment.

English – 33

MAINTENANCE

Adjustment of the oil pump

The oil pump is adjustable. Adjustments are made by turning the screw using a screwdriver or combination spanner. The machine is supplied from the factory set to 1 turn open. Turning the screw clockwise will reduce the oil ﬂow and turning the screw anti-clockwise will increase the oil ﬂow.

Recommended settings: Bar 16"-18” 2 turns from the closed position.

Bar 20"-24": 3 turns from the closed position. Bar 28" - :

These recommendations apply to JONSERED chain oil,

or other chain oils increase the oil ﬂow by one step.

4 turns from the closed position.

WARNING! The engine must not be running when making adjustments.

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 Air intake on the starter. 2 Air guide plate. 3 Fins on the ﬂywheel. 4 Cooling ﬁns on the cylinder. 5 Cylinder cover (directs cold air over the cylinder).

Clean the cooling system with a brush once a week, more often in demanding conditions system results in the machine overheating which causes damage to the piston and cylinder.

. A dirty or blocked cooling

”Turbo Air Cleaning” centrifugal cleaning

Centrifugal cleaning means the following: All air to the carburettor passes through the starter. Dirt and dust is centrifuged out by the cooling fan.

34 – English

IMPORTANT! In order to maintain operation of the

ifugal cleaning system it must be regularly

centr maintained. Clean the air intake to the starter, the ﬁns on the ﬂywheel, the space around the ﬂywheel, inlet pipe and carburettor compartment.

MAINTENANCE

Winter use

Running problems can occur when using the machine in the cold and snowy conditions caused by:

• Too low engine temperature.

• Icing of the air ﬁlter and carburettor. Special measures are therefore often required:

• Partly mask the air inlet on the starter to increase the w

orking temperature of the engine.

Temperature -5°°°°C or colder:

For running the machine in cold weather or powder snow , a special cover is available, which is mounted on the starter housing. This reduces the intake of cold air and prevents large amounts of snow from being sucked in.

CAUTION! If the special winterising kit has been ﬁtted or

y measures have been taken to increase the

an temperature these changes must be reversed before the machine is used in normal temperature conditions. Otherwise there is a risk of overheating, resulting in severe damage to the engine.

Heated handles

(CS 2172WH)

On models with the designation W , the front as well as the rear handle are equipped with electric heating coils. These are supplied with electricity from a built-in generator on the chain saw.

When the red mark on the switch is visible, the heating is on.

Electrical carburettor heating

(CS 2172WH)

On models with the designation WH/CWH there is an electrically heated carburetor. Electrically powered heating prevents ice formation in the carburetor. A thermostat regulates the heating so that the carburetor always has the right working temperature.

English – 35

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

ake for wear. Replace when less

br than 0.024 inch (0.6 mm) remains at the most worn point.

Check the clutch centre, clutch drum and clutch spring for wear.

Clean the spark plug. Check that the electrode gap is 0.020 inch (0.5 mm).

Check fuel hose for cracks or other damage. Change if necessary.

Empty the fuel tank and clean the inside.

Empty the oil tank and clean the

inside

Check all cables and connections.

Clean the outside of the machine.

Check that the components of the throttle control w lockout and throttle control.)

Clean the chain brake and check that

ates safely. Make sure that the

it oper chain catcher is undamaged, and replace it if necessary.

The bar should be turned daily for more e 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.

Check that the bar and chain are getting sufﬁcient oil.

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 links are abnormally worn. Replace if necessary.

Sharpen the chain and check its tension and condition. sprocket for excessive wear and replace if necessary.

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.

ork safely. (Throttle

ven wear. Check the

Check the drive

On chain saws without a catalytic con

verter, check the cooling system

weekly.

Check the starter, starter cord and

n spring.

retur

Check that the vibration damping elements are not damaged.

Lubricate the clutch drum bearing. Clean the outside of the carburetor.

File off any burrs from the edges of

the bar

Clean or replace the spark arrestor screen on the m

Clean the carburetor compartment.

Clean the air ﬁlter. Replace if necessar

ufﬂer.

36 – English

TECHNICAL DATA

Technical data

CS 2166 CS 2172 CS 2172WH

Engine

Cylinder displacement, cm Cylinder bore, mm 50 50 50 Stroke, mm 36 36 36 Idle speed, rpm 2700 2700 2700 Power, kW/ rpm 3,6/10200 4,1/10200 4,1/10200

Ignition system

Spark plug NGK BPMR 7A NGK BPMR 7A NGK BPMR 7A Electrode gap, mm 0,5 0,5 0,5

Fuel and lubrication system

Fuel tank capacity, litre 0,77 0,77 0,77 Oil pump capacity at 8,500 rpm, ml/min 4–20 4–20 4–20 Oil tank capacity, litre 0,42 0,42 0,42 Type of oil pump Automatic Automatic Automatic

Weight

Chain saw without bar or chain, empty tanks, kg 6,4 6,4 6,6

Noise emissions (see note 1)

Sound power level, measured dB(A) 118 118 118 Sound power level, guaranteed L

Sound levels (see note 2)

Equivalent sound pressure level at the operator’s ear, dB(A) 110 110 110

Equivalent vibration levels, a

Front handle, m/s Rear handle, m/s

Chain/bar

Standard bar length, inch/cm 20”/51 20”/51 20”/51 Recommended bar lengths, inch/cm 16-28”/41-70 16-28”/41-70 16-28”/41-70 Usable cutting length, inch/cm 15-27"/38-68 15-27"/38-68 15-27"/38-68 Pitch, inch/mm 3/8" /9,52 3/8" /9,52 3/8" /9,52 Thickness of drive links, inch/mm 0,058/1,5 0,058/1,5 0,058/1,5 Type of drive sprocket/number of teeth Rim/7 Rim/7 Rim/7 Chain speed at max. power, m/sec 22,7 22,7 22,7

Note 1: Noise emissions in the environment measured as sound power (LWA) in conformity with EC directive 2000/14/ EC.

Note 2: Equivalent sound pressure level, according to ISO 22868, is calculated as the time-weighted energy total for different sound pressure levels under various working conditions. Typical statistical dispersion for equivalent sound pressure level is a standard deviation of 1 dB (A).

Note 3: Equivalent vibration level, according to ISO 22867, is calculated as the time-weighted energy total for vibration

vels under various working conditions. Reported data for equivalent vibration level has a typical statistical dispersion

le (standard deviation) of 1 m/s

dB(A) 119 119 119

(see note 3)

hveq

70,7 70,7 70,7

4,0 4,0 4,0 5,9 5,9 5,9

English – 37

TECHNICAL DATA

Bar and chain combinations

The following cutting attachments are approved for the models Jonsered CS 2166,CS 2172 and CS 2172WH.

Bar Chain

Length, inch Pitch, inch Gauge, mm Max. nose radius Type

16 3/8 1,5 11T Jonsered H42 60 18 3/8 1,5 11T Jonsered H42 68 20 3/8 1,5 11T Jonsered H42 72 24 3/8 1,5 11T Jonsered H42 84 28 3/8 1,5 11T Jonsered H42 92

Saw chain ﬁling and ﬁle gauges

Length, drive links (no.)

38 – English

TECHNICAL DATA

EC-declaration of conformity

(Applies to Europe only)

Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the chain

saws for forest service year is clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the requirements of the COUNCIL’S DIRECTIVES:

- of May 17, 2006 "relating to machinery"

- of December 15, 2004 ”relating to electromagnetic compatibility” 2004/108/EC.

- of May 8, 2000 ”relating to the noise emissions in the environment”

For information relating to noise emissions, see the chapter Technical data. The following standards have been applied:

EN ISO 12100-2/A1:2009, CISPR 12:2005, EN ISO 11681-1:2008.

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 (2006/42/EC) article 12, point 3b. The certiﬁcates for EC type examination in accordance with annex IX, have the numbers:

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:

The supplied chain saw conforms to the example that underwent EC type examination. Huskvarna May 25, 2012

Bengt Frögelius, Development director chainsaw R&D (Authorized representative for Husqvarna AB and responsible for technical documentation.)

Jonsered CS 2166, CS 2172 and CS 2172WH from 2010’s serial numbers and onwards (the

2006/42/EC

2000/14/EC.

0404/10/2245.

01/161/099.

English – 39

Original instructions

1153687-26

´®z+Udh¶6.¨ ´®z+Udh¶6.¨

2012-04-20

Jonsered CS 2172WH, CS 2172, CS 2166 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Symbols on the mac hine:

CONTENTS

Dear Customer ,

Bef ore using a new chain saw

Impor tant

Chain brake and fr ont hand guard

Will my hand always activate the chain brake during a kickback?

Will my inertia activated chain brake always activate during kickback in the event of a kickback?

Will my chain brake always protect me from injury in the event of a kickback?

Throttle lockout

Chain catcher

Right hand guard

Vibration damping system

Stop switch

General rules

Cutting equipment

Cutting equipment designed to reduce kickback

Sharpening your chain and adjusting depth gauge setting

Tensioning the chain

Lubricating cutting equipment

Fitting the bar and chain

Fitting a spike bumper

Fuel

Petrol

Two-stroke oil

Mixing

Chain oil

Fuelling

Fuel safety

Transport and storage

Long-term storage

STARTING AND STOPPING

Cold engine

Warm engine

Starting

Stopping

Before use:

General working instructions

Basic safety rules

General rules

Basic cutting technique

Tree felling technique

Freeing a tree that has fallen badly

How to avoid kickback

What is kickback?

General

Carburettor adjustment

Carburettor with movement limiters

Function

Basic settings and running in

Fine adjustment

Changing the type of fuel

Conditions

Low speed jet L

Fine adjustment of the idle speed T

High speed jet H

Correctly adjusted carburettor

Checking, maintaining and servicing chain saw safety equipment

Chain brake and front hand guard

Throttle lockout

Chain catcher

Right hand guard

Vibration damping system

Stop switch

Starter

Changing a broken or worn starter cord

Tensioning the recoil spring

Changing a broken recoil spring

Fitting the starter

Spark plug

Lubricating the bar tip sprocket

Needle bearing lubrication

Adjustment of the oil pump

Cooling system

”Turbo Air Cleaning” centrifugal cleaning

Winter use