husqvarna 335xpt 45cc owners.pdf

7/28/2019 husqvarna 335xpt 45cc owners.pdf

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101 91 92-95

Operator's manual (EPA)

Read these instructions carefully and make sureyou understand them before using the saw.

335XPT California


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Symbols

KEY TO SYMBOLS

Switch off the engine by moving the stopswitch to the STOP position beforecarrying out any checks or maintenance.

Operating position

Choke

Always wear approved protective gloves.

Regular cleaning is required.

Visual check.

Protective glasses or a visor must beworn.

Refuelling

Chain oil and chain oil flow adjustment

CAUTION! Chain saws can be dangerous!Careless or incorrect use can result inserious or fatal injury to the operator orothers.

Please read the instructions carefully andmake sure you understand them beforeusing the saw.

Always wear: Approved protective helmet Approved hearing protection Protective glasses or visor

Both of the operators hands must be usedto operate the chain saw.

Never operate a chain saw holding it withone hand only.

Contact of the guide bar tip with any objectshould be avoided.

Tip contact may cause the guide bar tomove suddenly upward and backward,which may cause serious injury.


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CONTENTS

Contents

Key to symbols ......................................................... 2Safety instructionsPersonal protective equipment ................................. 4

Chain saw safety equipment ...................................... 4Inspecting, maintaining and servicing chain sawsafety equipment ................................................................. 8

Cutting equipment ......................................................... 10How to avoid kickback ................................................. 16General safety precautions ....................................... 18General working instructions .................................... 19

What is what?What is what? .................................................................... 24

AssemblyMounting guide bar and chain ........................................... 25

Fuel handlingFuelmix .............................................................................. 26Fuelling .............................................................................. 27

Start and stopStart and stop .................................................................... 28

MaintenanceCarburetor ......................................................................... 29Starter device .................................................................... 30Air filter .............................................................................. 31Spark plug ......................................................................... 31Muffler................................................................................ 31Adjustment of the oil pump ................................................ 32

Cooling system .................................................................. 32Daily maintenance ............................................................. 32Weekly maintenance ......................................................... 33Monthly maintenance ........................................................ 33

Technical Data335XPT ............................................................................. 34

Emission Control Warranty StatementYour warranty rights and obligations ................................. 35

Before using a new saw Read the instructions carefully. Check cutting equipment is correctly fitted and adjusted. See

page 25. Refuel and start the saw. Check the carburetor settings.

See pages 26-29. Do not use the saw until sufficient chain oil has reached the

chain, see page 14.

IMPORTANT! If the carburetor mixture is too lean it greatlyincreases the risk of engine failure.Poor maintenance of the air filter will cause carbon build-up onthe spark plug and lead to difficult starting.If the chain is badly adjusted it will cause increased wear ordamage to the bar, drive sprocket and chain.

A chain saw is a dangerous tool if usedcarelessly or incorrectly and can causeserious, even fatal injuries. It is very importantthat you read and understand theseinstructions.

You will find the following

labels on your chain saw:

WARNING!Under no circumstances may the design ofthe machine be modified without the permis-sion of the manufacturer. Always use genuinespare parts/accessories. Non-authorizedmodifications and/or accessories can resultin serious personal injury or the death of the

operator or others.Your warranty does not cover damage orliability caused by the use of non-authorizedaccessories or replacement parts.


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CHAIN SAW SAFETY EQUIPMENTThis section explains the various safety features of the saw,how they work, and basic inspection and maintenance youshould carry out to ensure safe operation. (See the What iswhat?section to find out where these components are on Yoursaw).

NEVER USE A CHAIN SAW THAT HASFAULTY SAFETY EQUIPMENT! Carry out theinspection, maintenance and service routineslisted in this section.

Chain brake and front handguard

Throttle lock

Chain catcher

Vibration damping system

Stop switch

Muffler

Cutting equipment (see

Cutting equipmentsection).

SAFETY INSTRUCTIONS

PERSONAL PROTECTIVE EQUIPMENT

MOST CHAIN SAW ACCIDENTS HAPPENWHEN THE CHAIN TOUCHES THE OPERA-TOR. You must wear approved protectiveequipment whenever you use a chain saw.Personal protective equipment cannoteliminate the risk of injury but it will reduce

the degree of injury if an accident doeshappen. Ask your chain saw dealer for help inchoosing the right equipment.

PROTECTIVE HELMET HEARING PROTECTION PROTECTIVE GLASSES

OR VISOR

GLOVES WITHSAW PROTECTION

PROTECTIVE TROUSERSWITH SAW PROTECTION

BOOTS WITH SAWPROTECTION, STEELTOE-CAP AND NON-SLIPSOLE

Generally clothes should beclose-fitting without restricting

your freedom of movement.

ALWAYS HAVE A FIRSTAID KIT NEARBY


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SAFETY INSTRUCTIONS2 The front hand guard is

not designed solely toactivate the chain brake.Another important safetyfeature is that it preventsthe chain from hitting yourleft hand if you lose yourgrip on the front handle.

3 You can also use thechain brake as atemporary brake when youchange position or if youput the saw down for ashort time. You shouldalso apply the chain brakemanually if there is a riskof the chain accidentallyhitting anyone or anythingclose by.

4 To release the chain brakepull the front hand guardbackwards, towards thefront handle.

5 As mentioned in section A,kickback can be verysudden and violent.Most kickbacks areminor and do not alwaysactivate the chain brake.If this happens youshould hold the chainsaw firmly and not letgo.

1 Chain brake and front hand guardYOUR chain saw is equipped with a chain brake that is desig-ned to stop the chain immediately if you get a kickback.The chain brake reduces the risk of accidents, but only You canprevent them.

Take care when using yoursaw and make sure the

kickback zone of the barnever touches any object.

1 The chain brake (A) caneither be activatedmanually (by your lefthand) or automatically bythe inertia releasemechanism (a free-swinging pendulum). On

most of our models thefront hand guard acts as acounterweight in case ofkickback.

The brake is appliedwhen the front handguard (B) is pushedforwards.

This movement activatesa spring-loadedmechanism that tightensthe Brake Band (C)around the engine drive

system (D) (Clutch Drum).

B

A

B

B

C

D


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6 The way the chain brake is triggered, either manually orautomatically, depends on the force of the kickback and theposition of the chain saw in relation to the object that thekickback zone of the bar strikes.

If you get a violentkickback while thekickback zone of the bar

is farthest away from youthe chain brake will beactivated by themovement of thecounterweight (INERTIAACTIVATED).

If the kickback is lessviolent or the kickbackzone of the bar is closerto you the chain brake will

be activated manually bythe movement of your lefthand.

7 During felling your lefthand grasps the fronthandle in such a way thatit cannot activate the fronthand guard. In thisposition the chain brakecan only be activated bythe inertia action of thecounterweight.

The inertia activatedchain brake increasesyour safety but there arecertain factors toremember (see point 6above).

2 Throttle lockThe throttle lock is designedto prevent accidental opera-tion of the throttle control.When you press the lock (A)(i.e. when you grasp thehandle) it releases the throttletrigger (B).

When you release the handlethe throttle trigger and thethrottle lock both move backto their original positions. Thismovement is controlled by twoindependent return springs.This arrangement means thatthe throttle control isautomatically locked at theidle setting when you releasethe handle.

3 Chain catcherThe chain catcher is designedto catch the chain if it snaps orjumps off. This should nothappen if the chain is properlytensioned (see section onAssembly) and if the bar andchain are properly servicedand maintained.(See section on Generalworking instructions).

SAFETY INSTRUCTIONS

A

B


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4 Vibration damping systemYour chain saw is equippedwith a vibration dampingsystem that is designed tominimise vibrations in thehandles and make operationeasier.

When you use a chain sawvibrations are generated bythe uneven contact betweenthe chain and the wood youare cutting.

Cutting hardwoods (mostbroadleaf trees) creates morevibration than cuttingsoftwoods (most conifers).Cutting with a chain that is

blunt or faulty (wrong type orbadly sharpened, see page11-14) will increase thevibration level.

The vibration damping systemreduces the vibrationstransmitted from the engineand chain to the handles ofthe chain saw. The body ofthe saw, including the cuttingequipment, is insulated fromthe handles by vibration

damping units.

Overexposure to vibration can lead tocirculatory damage or nerve damage in peoplewho have impaired circulation.Contact your doctor if you experiencesymptoms of overexposure to vibration.These symptoms include numbness, loss offeeling, tingling, pricking, pain, loss ofstrength, changes in skin colour or condition.These symptoms normally appear in thefingers, hands or wrists.

SAFETY INSTRUCTIONS5 Stop switch

Use the stop switch to switchoff the engine.

The exhaust fumes from the engine are hotand may contain sparks which can start a fire.Never start the saw indoors or nearcombustible material!

6 MufflerThe muffler is designed to keep noise levels to a minimum andto direct exhaust fumes away from the user.

In countries with a hot climatethere is a high risk of forestfires. The chain saw istherefore fitted with a SPARK

ARRESTOR MESH.

With this type of muffler it isvery important that you followthe instructions on checking,maintaining and servicing yoursaw (see the section onInspecting, maintaining andservicing chain saw safetyequipment).

The muffler gets very hot in use and remains

so for a short time afterwards. DO NOTTOUCH THE MUFFLER IF IT IS HOT!


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SAFETY INSTRUCTIONS3 Checking the brake trigger

Place the chain saw on

firm ground and start it.Make sure the chain doesnot touch the ground orany other object.

Grasp the saw firmly,wrapping your fingers andthumbs around thehandles.

Apply full throttle andactivate the chain brakeby tilting your wristforward onto the fronthand guard. Do not let goof the front handle.

The chain should stopimmediately.

WARNING!NEVER start the chain saw without activatingthe chain brake first!

Inspecting, maintaining and servicingchain saw safety equipment

SPECIAL TRAINING IS REQUIRED to serviceand repair chain saws. This is especially trueof chain saw safety equipment. If your chainsaw fails any of the checks described below

take it to your SERVICE AGENT.When you buy any of our products weguarantee the availability of professionalrepairs and service. If the retailer who sellsyour saw is not a SERVICING DEALER, askhim for the address of your nearest SERVICEAGENT.

1 Chain brake and front hand guard

1 Checking brake band wear

Brush off any sawdust,resin and dirt from thechain brake and clutchdrum. Dirt and wear canimpair operation of thebrake.

Regularly check that thebrake band is at least 0.6mm thick at its thinnestpoint.

2 Checking the front hand guard

A) Make sure theFRONT HAND GUARDis not damaged andthat there are no visibledefects such ascracks.

B) Move the front handguard forwards andback to make sure it

runs freely and that it issecurely anchored tothe clutch cover.


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SAFETY INSTRUCTIONS2 Throttle lock

1 Make sure the throttlecontrol is locked at theidle setting when you

release the throttle lock.

2 Press the throttle lock andmake sure it returns to itsoriginal position when yourelease it.

3 Check that the throttlecontrol and throttle lockmove freely and that thereturn springs workproperly.

3 Chain catcher

Check that the CHAINCATCHER is notdamaged and is firmly

attached to the body ofthe saw.

4 Vibration damping system

Regularly check thevibration damping unitsfor cracks or deformation

Make sure the vibrationdamping units aresecurely attached to theengine unit and handles.


4 Start the saw and applyfull throttle. Release thethrottle control and checkthat the chain stops andremains stationary. If thechain rotates when thethrottle is on idle settingyou should check the

carburetor idleadjustment. See thesection on Maintenance.

5 Stop switch


Start the engine andmake sure the enginestops when you move thestop switch to the stopsetting.


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7 MufflerNever use a chain sawthat has a faulty muffler.

Regularly check that themuffler is securelyattached to the chain saw.

If the muffler on your sawis fitted with a sparkarrestor mesh this mustbe cleaned regularly.A blocked mesh willcause the engine tooverheat and may lead toserious damage.

Never use a muffler ifthe spark arrestor meshis missing or defective.

NEVER USE A CHAIN SAW WITH FAULTYSAFETY EQUIPMENT. CARRY OUT THECHECKS AND MAINTENANCE MEASURESDESCRIBED IN THIS SECTION. IF YOURCHAIN SAW FAILS ANY OF THESE CHECKSCONTACT YOUR SERVICE AGENT TO GET ITREPAIRED.

CUTTING EQUIPMENTThis section describes how to choose and maintain your cuttingequipment in order to: Reduce the risk of kickback. Reduce the risk of the chain breaking or jumping. Obtain maximum cutting performance. Extend the life of cutting equipment.

The 5 basic rules

1 Only use cuttingequipmentrecommended by us!See the Technical datasection.

2 Keep the chain cuttingteeth properlysharpened! Follow ourinstructions and use therecommended filegauge. A damaged orbadly sharpened chainincreases the risk ofaccidents.

3 Maintain the correct

raker clearance! Followour instructions anduse the recommendedraker gauge. Too large aclearance increases therisk of kickback.

4 Keep the chain properlytesioned! If the chain isslack it is more likely tojump off and lead toincreased wear on thebar, chain and drive

sprocket.

5 Keep cutting equipmentwell lubricated andproperly maintained!A poorly lubricated chainis more likely to break andlead to increased wear onthe bar, chain and drivesprocket.

SAFETY INSTRUCTIONS


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SAFETY INSTRUCTIONSC Some terms that describe the bar and chainWhen the cutting equipment supplied with your saw becomesworn or damaged you will need to replace it. Use only the typeof bar and chain recommended by us. See the Technical datasection to find out which equipment is recommended for yoursaw.

Bar

LENGTH (inches/cm)

NUMBER OF TEETH ONBAR TIP SPROCKET (T).Small number = small tipradius = low-kickback

CHAIN PITCH (inches)The spacing between thedrive links of the chain mustmatch the spacing of theteeth on the bar tip sprocketand drive sprocket.

NUMBER OF DRIVE LINKSThe number of drive links isdetermined by the length ofthe bar, the chain pitch andthe number of teeth on thebar tip sprocket.

BAR GROOVE WIDTH(inches/mm)The groove in the bar mustmatch the width of the chaindrive links.

SAW CHAIN OIL HOLE

AND HOLE FOR CHAINTENSIONERThe bar must be matched tothe chain saw design.

Saw chain

SAW CHAIN PITCH(inches)Spacing between drivelinks.

DRIVE LINK WIDTH (mm/inches)

NUMBER OF DRIVE LINKS

LEVEL OF KICKBACKREDUCTIONThe level of kickbackreduction offered by a chainis indicated by its modelnumber.See the Technical datasection to find the modelnumbers of chains that arerecommended for use withyour saw.

1 Cutting equipment designed to minimisekickback

Faulty cutting equipment or the wrongcombination of bar and chain increases therisk of kickback. Use only the bar and chaincombinations recommended in the Technicaldatasection.

The only way to avoid kickback is to make sure that the kick-back zone of the bar never touches anything.By using cutting equipment with built-in kickback protectionand keeping the chain sharp and well-maintained you canreduce the effects of kickback.

A BarThe smaller the tip radius thesmaller the kickback zone andthe lower the chance ofkickback.

B Saw chainA saw chain is made up of a number of links, which areavailable in standard and low-kickback versions.

None Standard Low-kickback

CUTTING LINK

DRIVE LINK

SIDE LINK

Combining these links in different ways gives different degreesof kickback reduction. In terms of kickback reduction alone, fourdifferent types of link are available.

Kickback reduction Cutting link Drive link Side link

LOW

STANDARD

HIGH

EXTRA HIGH


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SAFETY INSTRUCTIONS2 Sharpening your chain and adjusting

raker clearance

The risk of kickback is increased with a badlysharpened chain!

A 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 andthe cuttings will be very small. If the chain is very blunt it willnot produce any cuttings at all, just wood powder.

A sharp chain eats its waythrough the wood andproduces long, thickcuttings.

The cutting part of the chainis called the CUTTING LINKand this consists of aCUTTING TOOTH (A) andthe RAKER LIP (B). Thecutting depth is determinedby the difference in heightbetween the two.

When you sharpen a cutting tooth there are five importantfactors to remember.

FILING ANGLE

CUTTING ANGLE

FILE POSITION

ROUND FILE DIAMETER

FILE DEPTH

See the Technical datasection for information aboutsharpening your saw chain.

BA

15

It is very difficult to sharpen achain correctly without theright equipment. Werecommend you use a filegauge. This will help youobtain the maximum kickbackreduction and cuttingperformance from your chain.

The following faults will increase the risk ofkickback considerably.

FILE ANGLE TOOLARGE

CUTTING ANGLETOO SMALL

FILE DIAMETERTOO SMALL

B Sharpening cutting teeth

To sharpen cutting teeth youwill need a ROUND FILE anda FILE GAUGE. See theTechnical data section for

information on the size of fileand gauge that arerecommended for your sawchain.

1 Check that the chain iscorrectly tensioned. Aslack chain is difficult tosharpen correctly.

2 Always file cutting teethfrom the inside face,reducing the pressure onthe return stroke.

File all the teeth on oneside first, then turn thesaw over and file theteeth on the other side.

3 File all the teeth to thesame length. When thelength of the cutting teethis reduced to 4 mm(0,16") the chain is wornout and should be

replaced.

min 4 mm(0,16")


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C General advice on setting raker clearance

When you sharpen thecutting teeth you reduce theRAKER CLEARANCE(cutting depth). To maintaincutting performance youmust file back the rakerteeth to the recommendedheight.

See the Technical datasection to find the rakerclearance for your sawchain.

On a low-kickback cuttinglink the front edge of theraker lip is rounded. It isvery important that youmaintain this radius or bevelwhen you adjust the raker

clearance.

We recommend the use of araker gauge to achieve thecorrect clearance and bevelon the raker lip.

The risk of kickback is increased if the rakerclearance is too large!

SAFETY INSTRUCTIONSD Setting the raker clearance

Before setting the raker clearance the cutting teeth should benewly sharpened.We recommend that you adjust the raker clearance every

third time you sharpen the chain. NOTE! Thisrecommendation assumes that the length of the cutting teethis not reduced excessively.

To adjust the rakerclearance you will need aFLAT FILE and a RAKERGAUGE.

Place the gauge over theraker lip.

Place the file over the partof the lip that protrudesthrough the gauge and fileoff the excess. Theclearance is correct whenyou no longer feel anyresistance as you draw thefile over the gauge.

3 Tensioning the chain

The more you use a chain the longer it becomes. It istherefore important to adjust the chain regularly to take up theslack.

Check the chain tension every time you refuel.NOTE! A new saw chain has a running-in period during whichyou should check the tension more frequently.

Tension the chain as tightly

as possible, but not so tightthat you cannot pull it roundfreely by hand.

A slack chain may jump off and cause seriousor even fatal injury.


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1 Undo the bar nuts thathold the clutch cover andchain brake, using thecombination spanner.Then tighten the nuts by

hand as tight as you can.

2 Raise the tip of the barand stretch the chain bytightening the chaintensioning screw usingthe combination spanner.Tighten the chain until ithangs slack on theunderside of the bar.

3 Use the combinationspanner to tighten the barnuts while lifting the tip ofthe bar at the same time.Check that you can pullthe chain round freely byhand and that it is notslack on the bottom of thebar.

The position of the chain tensioning screw varies frommodel to model. See the What is whatsection to find outwhere it is on your saw.

SAFETY INSTRUCTIONS4 Lubricating cutting equipment

Poor lubrication of cutting equipment maycause the chain to snap and lead to serious,even fatal injuries.

A Chain oil

Chainsaw chain oil must demonstrate good adhesion to thechain and also maintain its flow caracteristics regardless ofwhether it is warm summer or cold winter weather.

As a chainsaw manufacturer we have developed an optimalchain oil which, with its vegetable oil base, is alsobiodegradable. We recommend the use of our own oil forboth maximum chain life and to minimise environmentaldamage.

If our own chain oil is not available, standard chain oil isrecommended.

In areas where oil specifically for lubrication of saw chains isunavailable, ordinary EP 90 transmission oil may be used.

Never use waste oil!This is dangerous for yourself, the saw and the environment.

B Filling with chain oil The chain saw has an

automatic chain lubricationsystem. The oil flow is alsoadjustable.

The sizes of the chain oil

tank and fuel tank havebeen chosen so that thesaw will run out of fuelbefore running out of oil.This means that you shouldnever run with a dry chain.

However, this safety featurerequires that you use theright sort of chain oil (if theoil is too thin it will run outbefore the fuel), and thatyou adjust the carburetor asrecommended (a weakmixture may mean that the

fuel lasts longer than theoil). You should also use therecommended cuttingequipment (a bar that is toolong will use more chain oil).The above conditions alsoapply to models with anadjustable oil pump.


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C Checking chain lubrication

Check the chain lubricationeach time you refuel.

Aim the tip of the saw at alight coloured surface about20 cm away. After 1 minuterunning at 3/4 throttle youshould see a distinct line ofoil on the light surface.

If the chain lubrication is not working:

1 Check that the oil channelin the bar is notobstructed. Clean ifnecessary.

2 Check that the groove inthe edge of the bar isclean. Clean if necessary.

3 Check that the bar tipsprocket turns freely andthat the lubricating hole inthe tip is not blocked.Clean and lubricate ifnecessary.

If the chain lubricationsystem is still not workingafter carrying out theabove measures youshould contact yourservice agent.

D Lubricating the bar tip sprocket

Lubricate the bar tipsprocket each time yourefuel. Use the specialgrease gun and a goodquality bearing grease.

SAFETY INSTRUCTIONSE Checking wear on cutting equipment

Saw chain

Check the saw chain daily for: Visible cracks in rivets and

links. Whether the chain is stiff. Whether rivets and links are

badly worn.

We recommend youcompare the existing chainwith a new chain to decidehow badly it is worn.

When the length of thecutting teeth has worn downto only 4 mm the chain mustbe replaced.

F Chain drive sprocket

Regularly check the degreeof wear on the drivesprocket. Replace if wear isexcessive.

min 4 mm(0,16")


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H Bar

Check regularly:

Whether there are burrs onthe edges of the bar.Remove these with a file ifnecessary.

Whether the groove in thebar has become badly worn.Replace the bar ifnecessary.

Whether the tip of the bar isuneven or badly worn. If ahollow forms on one side ofthe bar tip this is due to aslack chain.

To prolong the life of the baryou should turn it over daily.

MOST CHAIN SAW ACCIDENTS HAPPENWHEN THE CHAIN TOUCHES THE OPERA-TOR.

WEAR PERSONAL PROTECTIVE EQUIPMENT(see the section on Chain saw safetyequipment).

DO NOT TACKLE ANY JOB YOU ARE UNSURE OF(see the section on Personal protectiveequipment, How to avoid kickback, Generalworking instructionsand Cutting equipment).

AVOID SITUATIONS WHERE THERE IS A RISK OFKICKBACK (see the section on Personalprotective equipment).

USE THE RECOMMENDED PROTECTIVEEQUIPMENT AND CHECK ITS CONDITION (see

section on General working instructions).

CHECK THAT ALL SAFETY FUNCTIONS AREWORKING (see section on General workinginstructionsand General safety precautions).

SAFETY INSTRUCTIONS

HOW TO AVOID KICKBACK

Kickback can happen very suddenly andviolently; kicking the saw, bar and chain backat the user. If this happens when the chain ismoving it can cause very serious, even fatalinjuries. It is vital you understand what causeskickback and that you can avoid it by taking

care and using the right working technique.

What is kickback?The word kickback is used todescribe the sudden reactionthat happens when the upperquadrant of the tip of the bar(known as the kickback zone)touches an object and thesaw is kicked backwards.

Kickback always occurs inthe cutting plane of the saw.Normally the saw and bar arethrown backwards andupwards towards the user.However the saw may movein a different directiondepending on the way it wasbeing used when the kickbackzone of the bar touched theobject.

Kickback only occurs if thekickback zone of the bartouches an object.


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General rules

SAFETY INSTRUCTIONS

6 Take great care when youcut with the top edge ofthe bar, i.e. when cutting

from the underside of theobject. This is known ascutting on the pushstroke. The chain tries topush the saw backtowards the user.

Unless the user resiststhis pushing force there isa risk that the saw willmove so far backwards

that only the kickbackzone of the bar is incontact with the tree. Thiswill cause kickback.

Cutting with the bottomedge of the bar, i.e. fromthe top of the objectdownwards, is known ascutting on the pull stroke.In this case the saw pullsitself towards the tree andthe front edge of the sawprovides a natural restwhen cutting. Cutting onthe pull stroke gives youbetter control over thesaw and the position ofthe kickback zone.

7 Follow the instructions on sharpening and maintaining yourbar and chain. When you replace the bar and chain useonly combinations that are recommended by us. See thesections on Cutting equipmentand Technical data.

If you have to saw treelimbs or the like that areabove shoulder heigth,stand on a work platformor a work stand. Neversaw while standing on aladder.

WARNING!In order to keep control of your saw alwaysmaintain a firm foothold. Never work on aladder or any other insecure support.Never work in a tree unless you havespecific, professional training for such work,

are properly secured (such as tackle andharness system or a life buckel), have bothhands free for operating the chain saw in acramped environment and have taken properprecautions to avoid injury from falling limbsor branches.Position the chain saw in such a way thatyour body is clear of the cutting attachmentwhenever the engine is running. Stand to theleft of the plane of the cutting attachment.

1 If you understand what kickback is and how it happens thenyou can reduce or eliminate the element of surprise. Bybeing prepared you reduce the risk. Kickback is usually

quite mild, but it can sometimes be very sudden and violent.

2 Always hold the sawfirmly with your right handon the rear handle andyour left hand on the fronthandle.Wrap your fingers andthumb around the hand-les. You should use thisgrip whether you areright-handed or left-handed. This gripminimises the effect ofkickback and lets you

keep the saw undercontrol.Do not let go of thehandles!

3 Most kickback accidentshappen during limbing.Make sure you arestanding firmly and thatthere is nothing in the waythat might make you tripor lose your balance.Lack of concentration canlead to kickback if thekickback zone of the bar

accidentally touches abranch, nearby tree orsome other object.

4 Never use the saw aboveshoulder height and donot cut with the tip of thebar.Never use the saw one-handed!

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

The risk of kickback is increased if you usethe wrong cutting equipment or a chain thatis not sharpened correctly. The wrongcombination of bar and chain can increasethe risk of kickback!


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SAFETY INSTRUCTIONS

GENERAL SAFETY PRECAUTIONS1 Chain saws are designed solely for cutting wood. The only

cutting equipment that can be used with this chain saw arethe combinations of bars and chains recommended in theTechnical datasection.

2 Never use a chain saw ifyou are tired, if you have

drunk alcohol, or if youare taking medication thataffects your vision, yourjudgement or your co-ordination.

3 Always wear suitable protective clothing. See the sectionon Personal protective equipment.

4 Never use a chain saw that has been modified in any wayfrom its original specification.

5 Never use a chain sawthat is faulty. Carry outthe regular checks,maintenance and serviceroutines described in thismanual. Somemaintenance and servicemeasures must be carriedout by trained specialists.See the section onMaintenance.

6 STARTING

7 FUEL SAFETY(Refuelling, fuel mixture, storage.)

Fuel and fuel vapour are highly inflammable.Take care when handling fuel and chain oil.Keep away from naked flames and do notbreathe in fuel vapour.

Never try to refuel the sawwhile it is running. Alwaysstop the engine and let itcool for a few minutesbefore refuelling.

Make sure there is plenty ofventilation when refuellingor mixing fuel (2-strokemixture).

Move the saw at least 3 mfrom the refuelling point

before starting it.

Never start the chainsaw:a) If you have spilt fuel or

chain oil on the saw.Wipe off the spill andallow remaining fuel toevaporate.

b) If you spill fuel or chainoil on yourself or yourclothes. Change yourclothes.

c) If there is a fuel leak.Check regularly forleaks from the

FUEL CAP and FUELLINES.

Always store the chain saw and fuel away from anysources of sparks or naked flames, e.g. machines, electricmotors, relays, switches, boilers, etc.

Always store fuel in an approved container designed forthat purpose.

For longer periods of storage or for transport of the saw,the fuel and chain oil tanks should be emptied. Ask where

you can dispose of waste fuel and chain oil at your localpetrol station.

8 Never use any accessories other than those recommendedin this manual. See the sections on Cutting equipmentand Technical data.

The risk of accident is increased if you use thewrong cutting equipment or a chain that is notsharpened correctly. Using the wrong combi-nation of bar and chain can increase the riskof accidents!

Min. 3 m(10 ft)


Never start a chain sawunless the bar, chain andclutch cover are fittedcorrectly. (See section onAssembly).

Never start a chain sawindoors. Exhaust fumes can

be dangerous.

Before starting the sawmake sure there are nopeople or animals nearbywho might be put at risk.

Place the saw on theground and hold the rearhandle down with your rightknee. Grasp the fronthandle firmly using your lefthand. Make sure the chainsaw is steady and the chainis not touching the ground.Then grasp the starterhandle and pull the startercord.


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SAFETY INSTRUCTIONS

GENERAL WORKING INSTRUCTIONS

This section describes basic safety rules forusing a chain saw. This information is nosubstitute for professional skills andexperience. If you get into a situation whereyou feel unsafe, stop and seek expert advice(look under FORESTRY SERVICES in the

telephone directory).DO NOT ATTEMPT ANY TASK THAT YOUFEEL UNSURE OF!

Important1 Before using a chain saw you must understand the effects of

kickback and what causes it. (See the section on How toavoid kickback.)

2 Before using a saw you must understand the differencebetween sawing with the top and bottom edges of the bar.(See the section on How to avoid kickback.)

1 Basic safety rules1 Look around you:

to make sure there are nopeople, animals or otherobjects nearby that mightaffect your work.

to make sure that none ofthe above might come withinreach of your saw or beinjured by falling trees.

Follow the instructions above, but do not use a chain saw in asituation where you cannot call for help in case of an accident.

2 Do not use the saw in bad weather, such as dense fog,heavy rain, strong wind, intense cold, etc. Working in coldweather is tiring and often brings added risks, such as icyground, unpredictable felling direction, etc.

3 Take great care when removing small branches and avoidcutting bushes (i.e. cutting many small branches at thesame time). Small branches can be grabbed by the chainand thrown back at you, causing serious injury.

4 Check the area aroundyou for possible obstaclessuch as roots, rocks,branches, ditches, etc., incase you have to movesuddenly. Take great carewhen working on slopingground.

5 Take the utmost carewhen cutting throughbranches or logs that arein tension. A log or branchthat is in tension can

suddenly spring back intoits natural position beforeor after you cut it. If youstand on the wrong sideor start cutting in thewrong place it may strikeyou or your chain saw.This could make you losecontrol and cause aserious accident.

6 Before moving your chainsaw switch off the engineand lock the chain usingthe chain brake. Carry thesaw with the bar andchain pointing backwards.Fit a guard to the barbefore carrying the sawany distance.

7 Never put a chain sawdown while the engine isrunning unless you have itin clear view and thechain brake is on. Switchthe engine off before

leaving your chain saw forany length of time.


20/3620English

SAFETY INSTRUCTIONSTwo factors decide whether the chain will jam or the log willsplit. The first is how the log is supported and the second iswhether it is in tension.

In most cases you can avoid these problems by cutting in twostages; from the top and from the bottom of the log. You needto support the log so that it will not trap the chain or split duringcutting.

If the chain jams in the cut:STOP THE ENGINE! Dont try to pull the sawfree. If you do you may damage the chainwhen the saw suddenly breaks free. Use alever to open up the cut and free the bar.

The following instructions describe how to handle most types ofsituation that you will be faced with when using a chain saw.

Cutting1 The log is lying on the

ground. There is little riskof the chain jamming orthe log splitting. Howeverthere is a risk that thechain will touch theground when you finishthe cut.

Cut all the way throughthe log from above. Trynot to touch the ground as

you finish the cut.Maintain full throttle butbe prepared in case thechain snatches.

A If it is possible to turnthe log you should stopcutting about 2/3 of theway through.

B Turn the log and finishthe cut from theopposite side.

2 Basic cutting techniqueGeneral Always use full throttle when cutting!

Reduce the speed to idle after every cut (running theengine for too long at full throttle without any load can lead toserious engine damage).

Cutting from above = Cutting on the pull stroke.

Cutting from below = Cutting on the push stroke.

See the section on How to avoid kickbackto find out whycutting on the push stroke increases the risk of kickback.

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

before the cut is complete.

There are five important factors you should considerbefore making a cut:

1 Make sure the bar will notjam in the cut.

2 Make sure the log will notsplit.

3 Make sure the chain willnot strike the ground orany other object during orafter cutting.

4 Is there a risk of kick-back?

5 Do the conditions andsurrounding terrain affectyour safety whenworking?


21/36English21

SAFETY INSTRUCTIONS2 The log is supported at one

end. There is a high riskthat it will split.

A Start by cutting frombelow (about 1/3 of theway through).

B Finish by cutting fromabove so that the twocuts meet.

3 The log is supported at bothends. There is a high riskthat the chain will jam.

A Start by cutting fromabove (about 1/3 of theway through).

B Finish by cutting frombelow so that the twocuts meet.

LimbingWhen limbing thick branchesyou should use the sameapproach as for cutting.

Cut difficult branches piece bypiece.

3 Tree felling technique

It takes a lot of experience to fell a tree.Inexperienced users of chain saws should notfell trees. NEVER ATTEMPT A TASK YOU AREUNSURE OF.

A Safe distance

The safe distance between a tree that is to be felled andanyone else working nearby is at least 21/2 tree lengths.Make sure that no-one else is in this risk zone before or duringfelling.

During critical felling operations, hearingprotectors should be lifted immediately whensawing is completed so that sounds andwarning signals can be heard.

B Felling directionThe aim is to fell the tree in the best possible position forsubsequent limbing and cross-cutting. You want it to fall onground where you can move about safely.

The main point to avoid isletting the tree fall ontoanother tree. It can be bothdifficult and dangerous toremove a tree in such aposition (see point 4 in thissection).Once you have decided whichway you want the tree to fallyou must judge which way thetree would fall naturally.

Several factors affect this:

Lean of the tree

Bend

Wind direction

Arrangement of branches

Weight of snow

You may find you are forced to let the tree fall in its naturaldirection because it is impossible or dangerous to try to make itfall in the direction you first intended.

Another very important factor, which does not affect the fellingdirection but does affect your safety, is to make sure the treehas no damaged or dead branches that might break off and hit

you during felling.

1 23


22/3622English

SAFETY INSTRUCTIONSFELLING CUTThe felling cut is made from the opposite side of the tree and itmust be perfectly horizontal. Stand on the left side of the treeand cut with the bottom edge of the bar.

Make the FELLING CUTabout 3-5 cm (1.5-2 inches)above the flat section of theDIRECTIONAL CUT.

Use full throttle and bring thebar and chain slowly into thetree. Make sure the tree doesnot start to move in theopposite direction to yourintended felling direction.Drive a WEDGE or BREA-KING BAR into the cut as

soon as it is deep enough.

Finish the FELLING CUTparallel with theDIRECTIONAL CUT LINE sothat the distance betweenthem is at least at least 1/10of the trunk diameter. Theuncut section of the trunk iscalled the BREAKING STRIP.

The BREAKING STRIP act ashinges that control the fellingdirection of the falling tree.

All control over the fellingdirection is lost if the BREA-KING STRIP is too narrow orif the directional cut and felling

cut are badly placed.

When the felling cut anddirectional cut are completethe tree should start to fallunder its own weight or withthe aid of a FELLINGWEDGE.

C Clearing the trunk and preparing your retreat

Remove any branches thatare in the way. To do this it isbest to work from the topdown and keep the trunkbetween you and the chainsaw. Never limb aboveshoulder height.

Remove any undergrowthfrom the base of the tree andcheck the area for obstacles(stones, branches, holes, etc.)so that you have a clear pathof retreat when the tree startsto fall. Your path of retreat

should be roughly 135degrees behind the intendedfelling direction.

D FellingFelling is done using three cuts. First you make theDIRECTIONAL CUTS, which consist of the TOP CUT and theBOTTOM CUT; followed by the FELLING CUT. By placingthese cuts correctly you can control the felling direction veryaccurately.

DIRECTIONAL CUTTo make the DIRECTIONALCUT you begin with the TOPCUT. Stand to the right of thetree and cut downwards at anangle.

Next make the BOTTOM CUTso that it finishes at the end ofthe TOP CUT.

The directional cut should run1/4 of the diameter throughthe trunk and the anglebetween the TOP CUT andBOTTOM CUT should be 45.

The line where the two cuts

meet is called theDIRECTIONAL CUT LINE.This line should be perfectlyhorizontal and at right angles(90) to the chosen fellingdirection.


23/36English23

We recommend that you usea bar that is longer than thediameter of the tree, so thatyou can make the FELLINGCUT and DIRECTIONAL CUTwith single cutting stokes.(See Technical datato findout which lengths of bar arerecommended for your saw).

There are methods for fellingtrees with a diameter largerthan the bar length. Howeverthese methods involve a muchgreater risk that the kickbackzone of the bar will come intocontact with the tree.

4 Freeing a tree that has fallen badly = highaccident risk

A Freeing a Trapped treeThe safest method is to use a winch.A Tractor-mounted B Portable

B Cutting trees and branches that are in tension

Preparations:

a) Work out which way the tree or branch will move if releasedand where the natural BREAKING POINT is (i.e. the placeit would break if it was bent even more).

b) Decide which is the SAFEST way to release the tensionand whether YOU are able to do it safely. In complicatedsituations the only safe method is to put aside your chainsaw and use a winch.

General advice:

a) Position yourself so thatyou will be clear of thetree or branch when itsprings free.

b) Make one or more cuts ator near the BREAKINGPOINT. Make as manycuts of sufficient depth asnecessary to reduce thetension and make the treeor branch break at theBREAKING POINT.

Never cut straightthrough a tree or branchthat is IS in tension!

SAFETY INSTRUCTIONS

UNLESS YOU HAVE SPECIAL TRAINING WEADVISE YOU NOT TO FELL TREES WITH ADIAMETER LARGER THAN THE BAR LENGTHOF YOUR SAW!

MOST KICKBACK ACCIDENTS HAPPENDURING LIMBING!PAY CLOSE ATTENTIONTO THE POSITION OF THE KICKBACK ZONEOF THE BAR WHEN YOU ARE LIMBINGBRANCHES THAT ARE IN TENSION!

E Limbing

Make sure there are noobstacles in your way. Workon the left side of the trunk.Work close to the saw formaximum control. If possible,let the weight of the saw reston the trunk.

Keep the tree between youand the saw as you movealong the trunk.

F Cutting the trunk into logsSee chapter General working instructionspoint 2 Basiccutting technique.


24/3624English

WHAT IS WHAT?

1

24

165

11 7

4

2

3

8

9

10

19

6

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1218

17

13

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15

23

26

25

27

1. Filter cover.

2. Front handle.

3. Front hand guard.4. Starter cover

5. Chain oil tank.

6. Starter handle.

7. Adjuster screws, carburetor.

8. Stop and choke control: Ignition on/off switch. Choke control/Start throttle lock. Operating position.

9. Rear handle.

10. Spark plug cover.

11. Fuel tank.

12. Muffler.

13. Bar tip sprocket.Stop switch and choke control. The stopswitch sets the ignition on/off.

14. Saw chain.

15. Saw bar.

16. Bumper.17. Chain catcher. Catches chain if it jumps or breaks.

18. Clutch cover.

19. Oil pump adjustment screw.

20. Throttle control.

21. Throttle lock. Prevents accidental operation of throttlecontrol.

23. Combination spanner.

24. Chain tensioning screw.

25. Operator's/Safety manual.

26. Bar guard.

27. Attachment point.

What is what?


25/36English25

Hold up the tip of the bar andtighten the chain. The chain iscorrectly tensioned whenthere is no slack on theunderside of the bar, but it can

still be turned easily by hand.Hold up the bar tip and tightenthe bar nuts with thecombination wrench.

When fitting a new chain, thechain tension has to bechecked frequently until thechain is run-in. Check thechain tension regularly. Acorrectly tensioned chaingives good cuttingperformance and long lifetime.

Mounting guide bar and chain

Always wear gloves, when working with thechain, in order to protect your hands frominjury.

Check that the chain brake isin disengaged position bymoving the front hand guardtowards the front handle.

Take off the bar nuts andremove the clutch cover. Take

off the transportation ring (A).

ASSEMBLY

Fit the clutch cover and locatethe chain adjuster pin in thehole on the bar. Check thatthe drive links of the chain fitcorrectly on the drive sprocketand that the chain is in thegroove on the bar. Tighten thebar nuts finger tight.Tension the chain by usingthe combination wrench. Turnthe chain adjuster screw

clockwise. The chain shouldbe tensioned until it fits snuglyon the underside of the bar.

A

Fit the bar over the bar bolts.Place the bar in its rearmostposition. Place the chain overthe drive sprocket and in thegroove on the bar. Begin onthe top side of the bar. Makesure that the edges on thecutting links are facing forwardon the top side of the bar.


26/3626English

Fuelmix

Gasoline This engine is certified to

operate on unleadedgasoline.

Use good quality unleadedgasoline.

The lowest recommendedoctane rating is 87. If yourun the engine on loweroctane rating than 87 so-called knocking can occur.This leads to an increasedengine temperature, whichcan result in a seriousengine breakdown.

When working at continuous high revs a higher octane ratingis recommended.

Two-stroke oil For the best results use HUSQVARNA two-stroke oil, which is

especially developed for chain saws. Mixing ratio 1:50 (2%).

Never use two-stroke oil intended for water cooled outboardengines, so-called, outboard oil.

Never use oil intended for four-stroke engines.

FUEL HANDLING

Always provide for good ventilation whenhandling fuel.

IMPORTANT! The chain saw is equipped with a two-strokeengine and must always been run using a mixture of gasolineand two-stroke engine oil. It is important to accurately measurethe amount of oil to be mixed to ensure that the correct mixtureis obtained. When mixing small amounts of fuel, even smallinaccuracies can drastically affect the ratio of the mixture.

Mixing Always mix the gasoline

and oil in a clean containerintended for fuel.

Always start by filling halfthe amount of the gasolineto be used. Then add the

entire amount of oil. Mix(shake) the fuel mixture.Add the remaining amountof gasoline.

Mix (shake) the fuel mixturethoroughly before filling thesaws fuel tank.

Do not mix more than max.one months supply of fuel.

If the saw is not used forsome time the fuel tankshould be emptied and

cleaned.

This engine is certified tooperate on unleadedgasoline.

5101520

0,100,200,300,40

Gasoline Oil2%(1:50)

12 1/2

5

2 1/26 1/2

12 7/8

USgallon

USfl. oz.

Lit. Lit.


27/36English27

Fuelling

Taking the following precautions, will lessenthe risk of fire.

Do not smoke or place warm objects in the vicinity ofthe fuel.

Always shut off the engine before refuelling.

Slowly open the fuel cap, when filling fuel, so thatpossible overpressure is slowly released. Tighten the fuel cap carefully after fuelling. Always move the saw from the fuelling area before

starting.

FUEL HANDLINGChain oil The chain lubrication

system is automatic. Alwaysuse special chain oil withgood adhesivecharacteristics.

In countries where no

special chain oil is available,EP 90 transmission oil canbe used.

Never use waste oil. Thisresults in damage to the oilpump, the bar and thechain.

It is important to use oil ofthe right viscosity accordingto the air temperature.

In temperatures below 0oC(32oF) some oils become

too viscous. This canoverload the oil pump andresult in damage to the oilpump components.

Contact your servicingdealer when choosing chainoil.

Clean around the fuel cap.Clean the fuel and chain oiltanks regularly. The fuel filtershould be changed at leastonce a year. Contamination inthe fuel tanks causesmalfunction. Make sure the

fuel is well mixed by shakingthe container before fuelling.The volume of chain oil andfuel tanks are adjusted toeach other. Therefore, alwaysfill chain oil and fuel at thesame time.

Min 3 m(10ft)


28/3628English

START AND STOPStartActivate the chain brake bypushing the front hand guardforwards. Grip the front handlewith your right hand and holdthe saw down by putting yourright knee on the rear handle.Pull the starter handle with

your right hand and pull outthe starter cord slowly until thestarter pawls engage. Thenpull sharply.

Move the lever to itsintermediate position whenthe engine ignites and makerepeated attemps.

When the engine starts,rapidly give full throttle. Thenthe throttle latch willdisengage.

Release the chain brake bypulling the front hand guardtowards the front handle.

CAUTION! Do not release thestarter handle from fully pulledout position as this can causedamage on the saw.

Start and stop

WARNING!

Never start the saw engine without the bar, chain andclutch cover (chain brake) assembled - or else theclutch can come loose and cause personal injuries.

Always move the saw away from the fueling areabefore starting.

Place the saw on clear ground and make sure that thechain is not contacting anything. Also, make sure thatyou have a secure footing.

Keep people and animals well away from the workingarea.


Cold engineCHAIN BRAKE:Activate the chain brake bypushing the front hand guardforwards.

IGNITION and CHOKE:Move the lever to its rearmostposition.

FAST IDLE:Combined choke/fast idle isobtained when the lever is setat its rearmost position (chokeposition). Fast idle ismaintained when the lever isthen moved to theintermediate position (opera-ting position).

Warm engineFollow the same startprocedure as for a coldengine, however, with thefollowing exceptions:

Move the lever to itsrearmost position.

Then move the lever backto its intermediate position(operating position).

StopThe engine is stopped byswitching off the ignition.(Move the ignition switch tostop position.)


29/36English29

Carburetor

MAINTENANCE

Your Husqvarna product has been designed and manufacturedto specifications that reduce harmful emissions.After your unit has been run 8-10 tanks of fuel the engine hasbroken in. To ensure that your unit is at peak performance andproducing the least amount of harmful emissions after break in,have your authorized servicing dealer, who has a revolutioncounter at his disposal, to adjust your carburetor for optimum

operating conditions.

WARNING! Do not start the saw without thebar, chain and clutch cover (chain brake)assembled. If you do, the clutch might comeloose and cause severe injuries.

Functioning, Basic setting, Final setting

Operation The carburetor governs the engine speed via the throttle. Air/

fuel are mixed in the carburetor. The air/fuel mixture isadjustable. To take advantage of the engines optimal outputthe setting must be correct.

The setting of the carburetor means that the engine isadapted to local conditions, for example, the climate, altitude,fuel and the type of 2-stroke oil.

The carburetor has threeadjustment possibilities:

L = Low speed jet.H = High speed jet.T = Adjustment screw foridling.

The fuel quantity required in relation to the air flow, providedby opening the throttle, is adjusted by the L and H-jets. If theyare screwed clockwise the air/fuel ratio becomes leaner (lessfuel) and if they are turned counter-clockwise the ratiobecomes richer (more fuel). A leaner mixture gives a higherengine speed and a richer mixture give a lower engine speed.

The T screw regulates the idling speed. If the screw T isturned clockwise this gives a higher idling speed; counter-clockwise a lower idling speed.

Basic setting and running inThe carburetor is set to its basic setting when test run at thefactory. The basic setting is richer than the optimal setting andshould be kept during the machines first working hours.

Thereafter the carburetor should be finely adjusted. Fineadjustment should be carried out by a skilled technician.

NOTE! If the chain rotates while idling the T screw should beadjusted counter-clockwise until it stops.Recommended idling speed: 2 800 rpm.

Low speed needle LTurn the low speed needle L clockwise until the stop. If theengine has bad acceleration or erratic idling, turn the L needlecounter-clockwise until good idling and acceleration.NOTE! If the chain rotates in the idling position, turn theidling speed screw counter-clockwise until the chain stops.

Final setting of the idling speed TAdjust the idling speed with the screw T. If it is necessary to re-adjust, first turn the idle speed adjusting screw T clockwise, untilthe chain starts to rotate. Then turn, counter-clockwise until thechain stops. A correctly adjusted idle speed setting occurswhen the engine runs smoothly in every position. It should alsobe good margin to the rpm when the chain starts to rotate.

High speed needle HThe high speed needle Hinfluences the power of thesaw. A too lean adjusted highspeed needle H (high speedneedle H closed too much)gives overrevs and damagesthe engine. Turn the highspeed needle H counter-clockwise until the stop. If theengine runs roughly, turn thehigh speed needle slowly theminimum amount clockwiseuntil the engine runs smoothly.The high speed needle H is correctly set when the saw 4-cycles a little. If the saw whistles the setting is too lean. Ifthere is too much exhaust gas at the same time as the saw 4-cycles much, the setting is too rich. Turn the high speed needleH until the setting sounds correct. NOTE! For optimum settingof the carburetor, contact a qualified servicing dealer whohas a revolution counter at his disposal.

Correctly adjusted carburetorA correctly adjusted carburetor means that the saw accelerateswithout hesitation and the saw 4-cycles a little at max speed.Furthermore, the chain must not rotate at idling. A too leanadjusted low speed needle L may cause starting difficulties andbad acceleration. A too lean adjusted high speed needle H

gives lower power=less capacity, bad acceleration and/ordamage to the engine. A too rich adjustment of the two speedneedles L and H gives acceleration problems or too low workingspeed.

Contact your servicing dealer, if the idle speedsetting cannot be adjusted so that the chainstops. Do not use the saw until it has beenproperly adjusted or repaired.

H

Conditions Before any adjustments are made the air filter should be

clean and the cylinder cowling fitted. Adjusting the carburetorwhile a dirty air filter is in use will result in a leaner mixturewhen the filter is finally cleaned. This can give rise to seriousengine damage.

Carefully turn the L and H needle to the mid point. Do not attempt to adjust the needles beyond the stops as

damage can occur. Now start the saw according to the starting instructions andrun it warm for 10 minutes.NOTE! If the chain rotates the T screw should be turnedcounter-clockwise until the chain stops.

Place the saw on a flat surface so that the bar points awayfrom you and so that the bar and chain do not come intocontact with the surface or other objects.

Contact your servicing dealer, if the idle speedsetting cannot be adjusted so that the chainstops. Do not use the saw until it has beenproperly adjusted or repaired.

Fine adjustment When the saw has been run-in the carburetor should be

finely adjusted. The fine adjustment should be carried outby qualified person. First adjust the L-jet, then the idlingscrew T and then the H-jet.

H L

T


30/3630English

Starter device

WARNING!

The recoil spring is in its tensioned position in itscassette in the starter device. If the spring is handledcaralessly, it can pop out and cause personal injury..

Always be careful, when changing the recoil spring orthe starter cord. Always wear safety goggles for eyeprotection.

Tensioning the recoil spring

Lift the starter cord up inthe notch on the starterpulley and turn the starterpulley 2 turns clockwise.

NOTE! Check that thestarter pulley can beturned at least half a turn,when the starter cord isentirely pulled out.

MAINTENANCE

Changing the broken recoil spring

Lift the starter pulley. (See,Changing a broken or wornstarter cord).

Dismantle the recoil springcassette by lifting it up outof the starter device. Makesure that the spring doesnot pop out and causepersonal injury.

Lubricate the new recoilspring with thin oil withoutremoving the spring out ofthe cassette.

Fit the new spring cassette.

Fit the cord pulley andretension the recoil spring.

Changing a broken or worn starter cord

Loosen the screws, thathold the starter deviceagainst the crankcase andremove the starter device.

Pull out the cord approx. 30cm and lift it up into thenotch in the pulley. Zero-setthe recoil spring by lettingthe pulley rotate slowlybackwards. Undo the screwin the centre of the pulleyand remove the pulley.

Insert and fasten a newstarter cord in the pulley.Wind approx. 3 turns of thestarter cord on to the pulley.Assemble the starter pulleyagainst the recoil spring, sothe end of the springengages to the pulley. Fitthe screw in the centre ofthe pulley. Carry the startercord through the hole in thestarter housing and thestarter handle. Make a knot

on the starter cord.

Starter device assembly

Assemble the starterdevice, by pulling the startercord out first, then place thestarter against the

crankcase. Then slowlyrelease the starter cord sothat the pulley engages withthe pawls.

Assemble and tighten thescrews, which hold thestarter.


31/36English31

Muffler

The muffler is designed inorder to reduce the noise leveland to direct the exhaust

gases away from the operator.The exhaust gases are hotand can contain sparks, whichmay cause fire if directedagainst dry and combustiblematerial. The muffler isequipped with a spark arrestormesh. The mesh must becleaned at least once a week.This is done with a wire brush.

CAUTION! The spark arrestormesh must be replaced, ifdamaged. The saw will beoverheated, if the mesh is

clogged. This results indamage on the cylinder andthe piston. Never use a sawwith a clogged or defectivemuffler.

MAINTENANCEAir filterThe air filter must be regularly cleaned from dust and dirt inorder to avoid: Carburetor malfunctions Starting problems Engine power reduction Unnecessary wear on

the engine parts

Abnormal fuel consumption

Clean the air filter daily ormore often if the air isexceptionally dusty in theworking area. Disassemble the air filter by

removing its cover and takeout the filter. Whenreassembling, make surethat the filter is tight against

the filter holder. Clean thefilter by brushing or shakingit.

A more thorough cleaning ofthe filter is obtained bywashing it in water andsoap.

An air filter, which is used for some time, cannot be cleanedcompletely. Therefore it must be replaced by a new one, withregular intervals.IMPORTANT! A damaged air filter must always be replaced.

Spark plug

The spark plug condition isinfluenced by: An incorrect carburetor

setting. Wrong fuel mixture (too

much oil in the gasoline). A dirty air filter.These factors cause depositson the spark plug electrodes,which may result inmalfunction and startingdifficulties.

If the engine is low onpower, difficult to start orruns poorly at idling speed,always check the spark plugfirst. If the spark plug is dirty,clean it and check theelectrode gap. Readjust ifnecessary. The correct gap is0,5 mm (.02"). The spark plugshould be replaced after abouta month in operation or earlier

if the electrodes are badlyeroded.

IMPORTANT! Always use the recommended spark plug type.An incorrect spark plug can severely damage the piston/cylinder.

0,5 mm


32/3632English

MAINTENANCE

Adjustment of the oil pump

The oil pump is adjustable.Adjustments are made byturning the screw using a

screwdriver or combinationspanner. The saw is suppliedfrom the factory set to 1 turnopen. Turning the screwclockwise will reduce the oilflow and turning the screwanti-clockwise will increasethe oil flow.

Below you will find some general maintenance instructions.If you have more questions, contact your servicing dealer.

Daily maintenance

1. Check the throttle triggerfor smooth operation. Ifany binding occurs, or ifengine fails to return toidle, the saw should betaken to your dealer,before it is used again.Also, be sure that thetrigger cannot be pulleduntil the throttle triggerlockout is depressed.

2. Clean the chain brakeand check its functionaccording to theinstructions. Make surethat the chain catcher is

undamaged. Otherwisereplace it immediately.

3. Clean or replace the airfilter as necessary. Checkfor damage or holes.

4. The bar should be turneddaily for more even wear.Check the lubrication holein the bar, to be sure it isnot clogged. Clean thebar groove and lubricatethe bar sprocket tip.

5. Check the function of theoiler to be sure the barand chain receive properlubrication.

6. Sharpen the chain andcheck its tension andcondition. Check the drivesprocket for wear.Replace if necessary.

7. Check the starter andstarter cord for wear ordamage. Clean the airintake slots on the starterhousing.

8. Check for any loose nutsand screws and retightenif necessary.

9. Test the stop switch to besure it shuts off theengine.

WARNING! The engine must not be running

when making adjustments.

-+

Cooling system

To obtain optimal running temperature the saw is equipped witha cooling system.

The cooling system

consists of:

1.Air intake on the starter unit.

2.Air guide plate.

3.Fan blades on the flywheel.

4.Cooling fins on the cylinder.

Clean the cooling system with a brush once a week, more oftenin demanding conditions. A dirty or blocked cooling systemresults in the saw overheating which causes damage topiston and cylinder.

1 2 3 4

1

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4

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8

7

9


33/36English33

MAINTENANCE

Weekly maintenance

1. Check that the AVelements are not soft ortorn.

2. Lubricate the clutch drumbearing.

3. File off burrs, if any, onthe sides of the bar.

4. Clean the spark plug andcheck the gap.The correct gap is 0,7 mm(0,028 inch).

5. Check the starter and therecoil spring. Clean the

fins on the flywheel.

6. Clean the cooling fins onthe cylinder.

7. Clean or change thescreen in the muffler.

8. Clean the carburetor body

and air box.

9. Retighten all bolts on themuffler.

Monthly maintenance

1. Check the brake band onthe chain brake for wear.

2. Check the clutch centre,clutch drum and clutchspring for wear.

3. Clean the outside of thecarburetor.

4. Change the fuel filter.

5. Flush the inside off thefuel tank with gasoline.

6. Flush the inside of the oiltank with gasoline.

7. Check all cables andconnections.

8. Change the spark plug.

9. Change the air filter.

5

6

7

3

4

1

2

8

9

0,5 mm

3

7

8

5

1

2

6

9

0,5 mm4


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335XPT

2,7/451,7/431,22/312 8001,6/9 000

FHPCDNGK BPMR 7AChampion RCJ 7Y.02"/0,5

WalbroWT 459 B0,63/0,3

3-7

0,34/0,16Automatic

7,5/3,4

14"/34

12"-16"/30-41

11"-15"/28-38

18,3

3/8"

0,050"/1,3

6

TECHNICAL DATA

EngineCylinder volume, cu.in/cm3

Cylinder bore, inch/mmStroke, inch/mmIdle speed, rpmPower, kW/ rpm

Ignition systemManufactureType of ignition systemSpark plug

Electrode gap, inch/mm

Fuel and lubricationsystemManufacturerCarburetor typeFuel capacity, US pint/litreOil pump capacity at8 500 rpm, ml/min

Oil capacity, US pint/litreType of oil pump

WeightWithout bar and chain, Lbs/kg

Chain/barStandard bar length,inches/cmRecommended bar lengths,inches/cmUsable cutting length,inches/cm

Chain speed at max.

power, m/sec

Pitch, inchThickness of drive link,inch/mmNumber of teeth on drivesprocket

Recommended bar and chain combinations

Following is a list of recommended cutting equipment forthe Husqvarna Model 335XPT. The combinations of

powerhead, bar and chain have been investigated inaccordance with the kickback requirements of ANSI B175.11991. The guide bar nose radius is determined byeither the maximum number of teeth in the nose sprocket orthe corresponding maximum nose radius of a solid bar.

The following list is the chain saw manufacturersrecommendations. There may be other combinationsavailable, which will also achieve kickback protection.

As we are listing the maximum guide bar nose radius, youmay use a guide bar with smaller nose radius than in ourlist. For guide bars of the same length, all sprocket-noseguide bars of the same pitch and having the same numberof of sprocket teeth may be considered to have equivalent

kickback energy. A hard nose bar having the same lengthand nose radius as a sprocket-nose bar may be consideredto have equivalent or less kickback energy than thesprocket-nose bar.

Low kickback saw chain is a chain which is has met thekickback performance requirements of ANSI B 175.1 safetyrequirements for gasoline-powered chain saws when testedon the representative sample of chain saws below 3.8 cu.in. specified in ANSI B 175.1. We recommend that you asreplacement use the listed chains or "Low kickback sawchains" which are available at your dealer.

FOR U.S. ONLY!

Guide bar Saw chain

Length Pitch Max noseinch inch radius

12 3/8 7T Husqvarna S36 or Oregon 91VG14 3/8 7T16 3/8 7T

15

L

Type Inch Inch/mm Inch/mm Angle Angle Angle Inch/mm Inch/cm: dl

91VG 3/8" 0,050"/1,3 5/32" /4,0 85 30 0 0,025"/0,65 12"/30:45 14"/34:52

16"/41:56

S36 3/8" 0,050"/1,3 5/32" /4,0 85 30 0 0,025"/0,65 12"/30:45 14"/34:52

16"/41:56

*33=59


35/36


36/36

husqvarna 335xpt 45cc owners.pdf

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