Bort BBK-2018 Manuale utente

BBK-2018

98296242

User’s Manual ....................................4

 Инструкцияпоэксплуатации .........12

2000

2-stroke 2800

min-1

45.0

cm3

0.55

0.26

1,5mm

0.33"

72pcs

SUMMER WINTER

FULL

31 2

OFF

564

Starting

Stopping

Oil - Öl - Масло

Petrol

Benzin

Бензин

4%-25 : 1

0,04

0,20

0,40

0,60

0,80

1,00

(40)

(200)

(400)

(600)

(800)

(1000)

(cm3)1

Petrol chainsaw

GENERAL SAFETY PRECAUTIONS

Before using a new chain saw please read this manual

carefully.

WARNING! Under no circumstances may the

design of the machine be modied without

the permission of the manufacturer. Always

use genuine accessories. Non-authorized modica-

tions and/or accessories can result in serious personal

injury or the death of the operator or others.

WARNING! A chain saw is a dangerous tool if

used carelessly or incorrectly and can cause

serious, even fatal injuries. It is very impor-

tant that you read and understand the contents of this

operator’s manual.

WARNING!Runninganengineinaconned

or badly ventilated area can result in death

due to asphyxiation or carbon monoxide poi-

soning.

PERSONAL PROTECTIVE EQUIPMENT

● 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

Generally clothes should be close-tting without re-

stricting your freedom of movement.

MACHINE'S SAFETY EQUIPMENT

Thelifespanofthemachinecanbereducedandthe

risk of accidents can increase if machine maintenance

is not carried out correctly and if service and/or repairs

are not carried out professionally. If you need further

information please contact your nearest service work-

shop.

WARNING! Never use a machine with defec-

tive safety components. Safety equipment

must be inspected and

maintained. See instructions under the heading Check-

ing, maintaining and servicing chain saw safety equip-

ment. If your machine does not pass all the checks,

take the saw to a servicing dealer for repair.

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.

● The chain brake can either be activated manually

(by your left hand) or automatically by the inertia re-

lease mechanism.

● Thebrakeisappliedwhenthe front hand guard is

pushed forwards.

● This movement activates a spring-loaded mecha-

nism that tightens the brake band around the engine

drive system (clutch drum).

● Thefronthandguardisnot designed solely toac-

tivate 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.

● Thechainbrakemustbeengagedwhenthechain

saw is started to prevent the saw chain from rotat-

ing.

● 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.

● 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rmlyandnotletgo.

● Thewaythechainbrakeisactivated,eithermanu-

ally or automatically by the inertia release mecha-

nism, 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.

VIBRATION DAMPING SYSTEM

Your machine is equipped with a vibration damping

system that is designed to minimize vibration and make

operation easier.

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 insu-

lated from the handles by vibration damping units.

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 vi-

bration level.

Bar

Thesmallerthetipradiusthelowerthechanceofkick-

back.

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 elimi-

nates the danger of kickback.

WARNING! Any contact with a rotating saw

chain can cause extremely serious injuries.

SHARPENING YOUR CHAIN AND ADJUST-

ING DEPTH GAUGE SETTING

WARNING! Always wear gloves, when work-

ing with the chain, in order to protect your

hands from injury.

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, thick chips or shavings.

● Thecuttingpartofthechainiscalledthecutterand

consists of a cutting tooth and the depth gauge.

 Thecutters cutting depth is determined bythe dif-

ference in height between the two (depth gauge set-

ting).

When you sharpen a cutting tooth there are four impor-

tant factors to remember.

1 Filing angle

2 Cutting angle

3 File position

4Roundlediameter

Itisverydi󰀩culttosharpenachaincorrectlywithoutthe

rightequipment.Werecommendthatyouuseourle

gauge.Thiswillhelpyouobtainthemaximumkickback

reduction and cutting performance from your chain.

WARNING! Departure from the sharpening

instructions considerably increases the risk

of kickback.

● Checkthatthechainiscorrectlytensioned.Aslack

chainwillmovesideways,makingitmoredi󰀩cultto

sharpen correctly.

● Always le cutting teeth from the inside face. Re-

duce the pressure on the return stroke. File all the

teethononesiderst,thenturnthechainsawover

andletheteethontheotherside.

● Filealltheteethtothesamelength.Whenthelength

of the cutting teeth is reduced to 4 mm (0.16") the

chain is worn out and should be replaced.

WARNING!Theriskofkickbackisincreased

if the depth gauge setting is too large!

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 ngers, hands or

wrists.Thesesymptomsmaybeincreasedincoldtem-

peratures.

Stop switch

Usethestopswitchtoswitcho󰀨theengine.

Mu󰀪er

Themu󰀪erisdesignedtoreducenoiselevelsandto

direct exhaust fumes away from the user.

WARNING!Theexhaustfumesfromtheen-

gine are hot and may contain sparks which

canstarta re. Never start the machine in-

doors or near combustible material!

CAUTION!Themu󰀪ergetsveryhotduring

andafteruse.Thisalsoappliesduringidling.

Beawareoftherehazard,especiallywhen

workingnearammablesubstancesand/orvapours.

WARNING! Never use a saw without a muf-

er, or with a damaged mu󰀪er. A damaged

mu󰀪ermaysubstantiallyincreasethenoise

levelandtherehazard.Keepreghtingequipment

handy. If a spark arrestor screen is required in your ar-

ea, never use the saw without or with a broken spark

arrestor screen.

CUTTING EQUIPMENT GENERAL RULES

● Onlyusecuttingequipmentrecommendedbyus!

● Keepthechain’scuttingteethproperlysharpened!

● Maintainthecorrectdepthgaugesetting!Followour

instructions and use the recommended depth gauge

clearance.Toolargeaclearanceincreasestherisk

of kickback.

● Keep the chain properly tensioned! If the chain is

slack it is more likely to jump o󰀨 and lead to in-

creased wear on the bar, chain and drive sprocket.

● 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.

CUTTING EQUIPMENT DESIGNED

TO REDUCE KICKBACK

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 wellmain-

tainedyoucanreducethee󰀨ectsofkickback.

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 rec-

ommended cutting equipment (a bar that is too long will

use more chain oil).

Checking chain lubrication

● Check the chain lubrication each time you refuel.

See instructions under the heading Lubricating the

bar tip sprocket.

Aim the tip of the bar at a light coloured surface about

20 cm (8 inches) away. After 1 minute running at 3/4

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

surface.

If the chain lubrication is not working:

● Checkthattheoilchannelinthebarisnotobstruct-

ed.

Clean if necessary.

● Checkthatthegrooveintheedgeofthebarisclean.

Clean if necessary.

● Checkthatthebartipsprocketturnsfreelyandthat

the lubricating hole in the tip sprocket is not blocked.

Clean and lubricate if necessary.

If the chain lubrication system is still not working after

carrying out the above checks and associated meas-

ures you should contact your service agent.

Chain drive sprocket

TheclutchdrumisttedwithaSpursprocket(thechain

sprocket is welded on the drum).

Regularly check the degree of wear on the drive

sprocket.

Replace if wear is excessive. Replace the drive sprock-

et whenever you replace the chain.

Checking wear on cutting equipment

Check the chain daily for:

● Visiblecracksinrivetsandlinks.

● Whetherthechainissti󰀨.

● Whetherrivetsandlinksarebadlyworn.

Replace the saw chain if it exhibits any of the points

above.

We recommend you compare the existing chain with

a new chain to decide how badly the existing chain is

worn.

When the length of the cutting teeth has worn down to

only 4 mm the chain must be replaced.

Bar

Check regularly:

● Whether there are burrs on the edges of the bar.

Removethesewithaleifnecessary.

● Whether the groove in the bar has become badly

worn.

Replace the bar if necessary.

ADJUSTMENTOF DEPTHGAUGE SETTING

● 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atleandadepthgaugetool.We

recommend that you use our depth gauge tool to

acheive the correct depth gauge setting and bevel

for the depth gauge.

● 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atle to le o󰀨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lealongthe

depth gauge tool.

TENSIONING THE CHAIN

WARNING!Aslackchainmayjumpo󰀨and

cause serious or even fatal injury.

WARNING! Always wear approved protective

gloves.Evenanon-movingchaincancause

serious cuts to yourself or persons you bump

into with an exposed chain.

Themoreyouuseachainthelongeritbecomes.Itis

therefore important to adjust the chain regularly to take

up the slack.

Check the chain tension every time you refuel.

NOTE!Anewchainhasa running-inperiod

during which you should check the tension

more frequently.

LUBRICATING CUTTING EQUIPMENT

WARNING!Poorlubricationofcuttingequip-

ment 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owcharacteristicsregardlessof

whether it is warm summer or cold winter weather.

Filling with chain oil

● All our chain saws have an automatic chain lubri-

cationsystem.Onsomemodelstheoilowisalso

adjustable.

● The saw chain oil tank and the fuel tank are de-

signed so that the fuel runs out before the saw chain

oil.

TWO-STROKE OIL

● Neverusetwo-strokeoilintended forwater-cooled

engines, sometimes referred to as outboard oil (rat-

edTCW).

● Neveruseoilintendedforfour-strokeengines.

MIXING RATIO

Petrol,litre Two-strokeoil,litre

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

5 0,10 0,15

10 0,20 0,30

15 0,30 0,45

20 0,40 0,60

MIXING

● Always mix the petrol and oil in a clean container

intended for fuel.

● Alwaysstartbylling 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lling

the machine’s fuel tank.

● Donotmixmorethanonemonth’ssupplyoffuelat

a time.

● Ifthemachineisnotusedforsometimethefueltank

should be emptied and cleaned.

Chain oil

● Werecommendtheuseofspecialoil(chainoil)with

good adhesion characteristics.

● Neverusewasteoil.Thisresultsindamagetotheoil

pump, the bar and the chain.

● Itisimportanttouseoiloftherightgrade(suitable

viscosity range) to suit the air temperature.

● Intemperaturesbelow0°C(32°F)someoilsbecome

tooviscous.Thiscanoverloadtheoilpumpandre-

sult 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re:Donotsmokeand

do not place any hot objects in the vicinity of

fuel. Always stop the engine and let it cool for a few

minutes before refuelling. When refuelling, open the

fuel cap slowly so that any excess pressure is released

gently.Tightenthefuelcapcarefullyafterrefuelling.

Always move the machine away from the refuelling

area before starting.

ASSEMBLY

FITTING THE BAR AND CHAIN

WARNING!Switcho󰀨theenginebeforecar-

rying out any checks or maintenance. The

stop switch automatically returns to the start

position. In order to prevent unintentional starting, the

spark plug cap must be removed from the spark plug

when assembling, checking and/or performing mainte-

nance.

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.

Remove the bar nuts and remove the clutch cover

(chainbrake).Takeo󰀨thetransportationring.

Fitthebaroverthebarbolts.Placethebarinitsrear-

most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 (the chain brake) and locate the

chain adjuster pin in the hole in the bar. Check that

thedrivelinksofthechaintcorrectlyoverthedrive

sprocket and that the chain is correctly located in the

grooveinthebar.Tightenthebarnutsngertight.

Tensionthechainbyturningthechaintensioningscrew

clockwise using the combination spanner. The chain

should be tensioned until it does not sag from the un-

derside of the bar.

Thechainiscorrectlytensionedwhenitdoesnotsag

from the underside of the bar, but can still be turned

easilybyhand.Holdupthebartipandtightenthebar

nuts with the combination spanner.

Whentting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 en-

sures good cutting performance and long life.

FUEL

Note!Themachine isequippedwithatwo-stroke en-

gine and must always be run using a mixture of petrol

and twostroke oil. It is important to accurately measure

the amount of oil to be mixed to ensure that the cor-

rect mixture is obtained. When mixing small amounts

of fuel, even small inaccuracies can drastically a󰀨ect

the ratio of the mixture.

WARNING! Always ensure there is adequate

ventilation when handling fuel.

Petrol

● Usegoodqualityunleadedorleadedpetrol.

● Thelowestrecommendedoctanegradeis92.

● Whenworkingwithcontinuoushighrevs(e.g.limb-

ing) a higher octane is recommended.

Running-in

Avoid running at a too high speed for extended periods

duringtherst10hours.

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.

STARTING AND STOPPING

WARNING! Note the following before start-

ing: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 tted correctly. Otherwise the clutch can

comelooseandcausepersonalinjuries.Placethema-

chine on rm 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.

1.Airpurge:Presstheairpurgerepeatedlyuntilfuel

begins to ll the bulb. The bulb need not be com-

pletelylled.

2.Choke:Pullthebluechoke/fastidleleverouttothe

fullextent(totheFULLCHOKEposition).Whenthe

choke/ fast idle lever is pulled out to the full extent,

the correct throttle setting is set automatically.

 Startthrottle:Thecorrectchoke/startthrottlesetting

is obtained by moving the control to the choke posi-

tion.

Starting

Gripthefronthandlewithyourlefthand.Holdthechain

saw on the ground by placing your right foot through

the rear handle.

3.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 rmly and

rapidly. Never twist the starter cord around your

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.

4.Push in the choke control to the ”1/2 choke” set-

tingassoonastheenginereswhichcanbeheard

througha"pu󰀨"sound.

5.Keeponpullingthecordpowerfullyuntiltheengine

starts. Allow engine to warm for thirty seconds, then

squeeze throttle trigger to set normal idle.

As the chain brake is still engaged the speed of the

engine must be set to idling as soon as possible, this

is achieved by quickly pressing the throttle trigger

once.Thispreventsunnecessaryweartotheclutch,

clutch drum and brake band.

Clean the area around the fuel cap. Clean the fuel

andchainoiltanksregularly.Thefuelltermustbere-

placed at least once a year. Contamination in the tanks

causes malfunction.

Make sure the fuel is well mixed by shaking the con-

tainerbeforerefuelling.Thecapacitiesofthechainoil

tank and fuel tank are carefully matched. You should

thereforealwaysllthechainoiltankandfueltankat

the same time.

WARNING! Fuel and fuel vapour are highly

ammable.Takecarewhenhandlingfueland

chainoil.Beawareoftherisksofre,explo-

sion and those associated with inhalation.

FUEL SAFETY

● Never refuel the machine while the engine is run-

ning.

● Makesurethereisplentyofventilationwhenrefuel-

ling or mixing fuel (petrol and 2-stroke oil).

● 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 o󰀨 the spillage and allow remaining fuel to

evaporate.

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

change your clothes. Wash any part of your body that

has come in contact with fuel. Use soap and water.

3 If the machine is leaking fuel. Check regularly for

leaks from the fuel cap and fuel lines.

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re.

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 ames from electrical equip-

ment, electric motors, relays/switches, boilers and

the like.

● Alwaysstorefuelinanapprovedcontainerdesigned

for that purpose.

● Forlongerperiodsofstorageorfortransportofthe

chain saw, the fuel and chain oil tanks should be

emptied. Ask where you can dispose of waste fuel

and chain oil at your local petrol station.

● Ensurethemachineiscleanedandthatacomplete

service is carried out before long-term storage.

● Thebarguardmustalwaysbetted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.

● Securethemachineduringtransport.

Basic safety rules

Look around you:

● Toensurethatpeople,animalsorotherthingscan-

nota󰀨ectyourcontrolofthemachine.

● To make sure that none of the above might come

within reach of your saw or be injured by falling

trees.

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.

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.

3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 in-

jury.

4 Take great care when cutting a tree that is in ten-

sion. A tree that is in tension may spring back to its

normal position before or after being cut. If you posi-

tion 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.

5Beforemovingyourchainsawswitcho󰀨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.

6 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o󰀨

before leaving your chain saw for any length of time.

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 hap-

pens 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rmlywithyourrighthand

on the rear handle and your left hand on the front han-

dle.Wrapyourngersandthumbsaroundthehandles.

You should use this grip whether you are right-handed

or left-handed. This grip minimises the e󰀨ect of kick-

back and lets you keep the chain saw under control. Do

not let go of the handles!

3 Most kickback accidents happen during limbing.

Make sure you are standing rmly and that there is

nothing in the way that might make you trip or lose your

balance.

Warm engine

Use the same procedure as for starting a cold engine

but without setting the choke control in the choke posi-

tion. Set the throttle to the start position by pulling out

the blue choke control to the choke position and then

pushing it in again.

WARNING! Long term inhalation of the en-

gine’s exhaust fumes, chain oil mist and dust

from sawdust can represent a health risk.

● Neverstart a chain saw unless the bar,chainand

allcoversarettedcorrectly.Seeinstructionsunder

the heading Assembly. Without a bar and chain at-

tached to the chain saw the clutch can come loose

and cause serious injury.

● Thechainbrakeshouldbeactivatedwhenstarting.

See instructions under the heading Start and stop.

Do not drop start. This method is very dangerous

because you may lose control of the saw.

● 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 rm grip with

thumbs and ngers encircling the chain saw han-

dles.

Stopping

Stop the engine by pressing down the stop button.

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 dam-

aged.

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mu󰀪erissecurelyattachedandnot

damaged.

8 Check that all parts of the chain saw are tightened

correctly and that they are not damaged or miss-

ing.

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

damaged.

10 Check the chain tension.

Lack of concentration can lead to kickback if the kick-

back zone of the bar accidentally touches a branch,

nearby tree or some other object.

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.Thisisnotnec-

essarily dangerous in itself, but you may be surprised

and lose control of the saw. Never saw stacked logs or

brancheswithoutrstseparatingthem. Onlysawone

log or one piece at a time. Remove the cut pieces to

keep your working area safe.

4 Never use the chain saw above shoulder height and

try not to cut with the tip of the bar. Never use the chain

saw one-handed!

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

control over the chain saw. Never work standing on a

ladder,inatreeorwhereyoudonothavermground

to stand on.

6 Always use a fast cutting speed, i.e. full throttle.

7Takegreatcarewhenyoucutwiththetopedgeofthe

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

Thisisknownascuttingonthepushstroke.Thechain

tries to push the chain saw back towards the user. If the

saw chain is jamming, the saw may be pushed back

at you.

8 Unless the user resists this pushing force there is a

risk that the chain saw will move so far backwards that

only the kickback zone of the bar is in contact with the

tree, which will lead to a kickback.

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

top of the object downwards, is known as cutting on

the pull stroke. In this case the chain saw pulls itself

towards the tree and the front edge of the chain saw

body rests naturally on the trunk when cutting. Cutting

on the pull stroke gives the operator better control over

the chain saw and the position of the kickback zone.

9Followtheinstructionsonsharpeningandmaintain-

ing your bar and chain. When you replace the bar and

chain use only combinations that are recommended by

us.

GENERAL

The user must only carry out the maintenance and

serviceworkdescribedinthisOperator’sManual.More

extensive work must be carried out by an authorised

service workshop.

CARBURETTOR ADJUSTMENT

YourBORTproducthasbeendesignedandmanufac-

turedtospecicationsthatreduceharmfulemissions.

FUNCTION

● Thecarburettorgovernstheengine’sspeedviathe

throttle control. Air and fuel are mixed in the car-

burettor. The air/fuel mixture is adjustable. Correct

adjustment is essential to get the best performance

from the machine.

● 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.

Basic settings and running in

Thebasiccarburettorsettingsareadjustedduringtest-

ing at the factory. Fine adjustment should be carried

out by a skilled technician.

Rec.idlespeed:SeetheTechnicaldatasection.

FineadjustmentoftheidlespeedT

Adjust the idle speed with the T-screw. If it is neces-

sary 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.

MAINTENANCE SCHEDULE

Thefollowingisalistofthemaintenancethatmustbe

performed on the machine. Most of the items are de-

scribed in the Maintenance section.

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