INSTRUCTION MANUALIMPORTANT INFORMATION: Please read these instructions carefullyand make sure you understand them before using this unit. Retain theseinstructions for future reference.

MANUEL D’INSTRUCTIONSRENSEIGNEMENTS IMPORTANTS: Avant d’utiliser cet appareil,veuillez lire atentivement les instructions et assurez--vous de les avoircomprises. Conservez les instructions pour référence ultérieure.

BETRIEBSANWEISUNGWICHTIGE INFORMATION: Lesen Sie diese Hinweise zur Handha-bung des Geräts aufmerksam durch. Verwenden Sie es erst, wennSie sicher sind, daß Sie alle Anweisungen verstanden haben undgut aufbewahren.

MANUAL DE INSTRUCCIONESINFORMACIÓN IMPORTANTE: Lea atentamente las instrucciones yasegúrese de entenderlas antes de utilizar esta aparato. Conserve lasinstrucciones para la referencia en el futuro.

GB

FR

DE

ES

115163426 Rev. 1 7/15/09 BRW

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IDENTIFICATION (WHAT IS WHAT?)Chain

Adjustment Tool(Bar Tool)

Bar Oil Fill Cap

Chain

Front Hand GuardStarter Rope

ON/STOPSwitch

Muffler

Choke/Fast IdleLever

Fuel Mix Fill CapStarter Housing

Idle Speed Screw

Bumperspike Primer Bulb

Front Handle

Guide Bar

AdjustingWheel

Cylinder Cover

ThrottleLockout

RearHandle

ThrottleTrigger

ChainBrake

ChainDirectionof Travel

ChainCatcherClutch

CoverBarKnob

IDENTIFICATION OF SYMBOLS

WARNING! This chainsaw can be dangerous! Care-less or improper use cancauseserious or even fatal injury.

Read and understand theinstruction manual beforeusing the chain saw.

Always use twohands whenoperating thechain saw.

WARNING! Contacting the guide bar tip with any objectshould be avoided; tip contact may cause the guide bar tomovesuddenly upwardandbackward, whichmay causese-rious injury.

Always wear appropriateearprotection, eye protectionand head protection.

Sound power level

Sound pressure levelat 7,5 meters

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IDENTIFICATION OF SYMBOLS

Move ON/STOP switch tothe ON position.

Slowly press primer bulb6 times.

Pull the starter ropesharply 5 times with yourright hand.

Pull the starter rope sharplywith your right hand untilthe engine starts.

Pull choke/fast idle leverout to the full extent (tothe FULL CHOKE posi-tion).

Push the choke/fast idlelever in to the HALFCHOKE position.

Starting Reminder Chain Tensioning

Lift lever on bar knob andturn counterclockwise 1 turnto loosen clutch cover.

Turn adjusting wheel (downwarddirection) to tension chain untilchain solidly contacts bottom ofguide bar rail.

While lifting tip of guide bar, tight-en bar knob (clockwise) securely.Hand tighten only! Return leveron bar knob to original position.

SAFETY RULES

WARNING: Always disconnectspark plug wire and place wire where it can-not contact spark plug to prevent accidentalstarting when setting up, transporting, ad-justing or making repairs except carburetoradjustments.Because a chain saw is a high-speed wood-cutting tool, special safety precautions mustbe observed to reduce the risk of accidents.Careless or improper use of this tool cancause serious injury.PLAN AHEADS Read this manual carefully until you com-pletely understand and can follow all safetyrules, precautions, and operating instruc-tions before attempting to use the unit.

S Restrict the use of your saw to adult userswho understand and can follow safetyrules, precautions, and operating instruc-tions found in this manual.

SnugFittingClothing

SafetyShoes

Safety Chaps

Heavy DutyGloves

EyeProtection

HearingProtection

Safety Hat

S Wear protective gear. Always use steel-toedsafety footwear with non-slip soles; snug-fit-ting clothing; heavy-duty, non-slip gloves;eye protection such as non-fogging, ventedgoggles or face screen; an approved safetyhard hat; and sound barriers (ear plugs ormufflers) to protect your hearing. Secure hairabove shoulder length.

S Always use approved hearing protection.Regular users should have hearing checkedregularly as chain saw noise can damagehearing. Long--term exposure to noise canresult in permanent hearing impairment.

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S Keep all parts of your body away from thechain when the engine is running.

S Keep children, bystanders, and animals aminimumof 10meters away from theworkarea. Do not allow other people or animalsto be near the chain saw when starting oroperating the chain saw.

S Do not handle or operate a chain saw whenyou are fatigued, ill, or upset, or if you havetaken alcohol, drugs, or medication. Youmust be in good physical condition andmen-tally alert. Chain saw work is strenuous. Ifyou have any condition that might be aggra-vated by strenuous work, check with yourdoctor before operating a chain saw.

S Carefully planyour sawingoperation inad-vance. Donot start cutting until you haveaclear work area, secure footing, and, if youare felling trees, a planned retreat path.OPERATE YOUR SAW SAFELY

WARNING: Long term inhalation ofthe engine’s exhaust fumes, chain oil mist anddust from sawdust can result in serious per-sonal injury.S Do not operate a chain saw with one hand.Serious injury to the operator, helpers, by-standers or any combination of these per-sonsmay result from one-handed operation.A chain saw is intended for two-handed use.

S Operate the chain saw only in a well-venti-lated outdoor area.

S Donotoperate saw froma ladder or in a tree,unless you are specifically trained to do so.

S Make sure the chain will not make contactwith any object while starting the engine.Never try to start the sawwhen the guidebaris in a cut.

S Do not put pressure on the saw at the end ofthe cut. Applying pressure can cause you tolose control of the chain saw when the cut iscompleted and may cause serious personalinjury.

S Stop theenginebeforesetting the sawdown.S Donot operate a chain saw that is damaged,improperly adjusted, or not completely andsecurely assembled. Always replace bar,chain, hand guard, or chain brake immedi-ately if it becomes damaged, broken or isotherwise removed.

S With the engine stopped, hand carry thechain saw with the muffler away from yourbody, and theguide bar and chain to the rear,preferably covered with a scabbard.CHAIN SAW SAFETY EQUIPMENTNOTE: In this section, the safety features ofthe chain saw and their function are explained.For inspection and maintenance, see instruc-tions in the CHECKING, MAINTAINING ANDSERVICING CHAIN SAW SAFETY EQUIP-MENT section. See instructions under theWHAT IS WHAT? section, to find where theseparts are located on your chain saw. The lifespan of the machine can be reduced and therisk of accidents can increase if machinemain-tenance is not carried out correctly and if ser-vice and/or repairs are not carried out profes-sionally. If you need further information, pleasecontact your nearest service dealer.

S Chain brake. Your chain saw is equippedwith a chain brake that is designed to stopthe chain from moving.

WARNING: The chain brake is de-signed to stop the chain immediately if youget a kickback. The chain brake reduces therisk of accidents, but only you can preventthem.DONOTASSUMETHATTHECHAINBRAKE WILL PROTECT YOU IN THEEVENT OF A KICKBACK.S Throttle trigger lock--out. The throttlelock--out is designed to prevent accidentaloperation of the throttle trigger.

S Chain catcher. The chain catcher is de-signed to catch the saw chain if it breaks.

S Vibration damping system. Your chainsaw is equipped with a vibration dampingsystem that is designed to minimize vibra-tion and make operation easier.

SAFETY NOTICE: Exposure to vibrationsthrough prolonged use of gasoline poweredhand tools could cause blood vessel or nervedamage in the fingers, hands, and joints of peo-ple prone to circulation disorders or abnormalswellings. Prolonged use in cold weather hasbeen linked to blood vessel damage in other-wise healthy people. If symptoms occur suchas numbness, pain, loss of strength, change inskin color or texture, or loss of feeling in the fin-gers, hands, or joints, discontinue the use ofthis tool and seek medical attention. An anti-vibration systemdoes not guarantee theavoid-ance of these problems. Users who operatepower tools on a continual and regular basismust monitor closely their physical conditionand the condition of this tool.S ON/STOP switch. The ON/STOP switchshould be used to stop the engine.

CHECKING, MAINTAINING ANDSERVICING CHAIN SAW SAFETYEQUIPMENT

WARNING: Never use a chain sawwith defective safety equipment. Safetyequipment must be inspected and main-tained. If your chain saw does not pass in-spection, take the saw to your nearest ser-vice dealer for repair.S Chain brake.Brush off any wood dust, res-in and dirt from the chain brake and clutchdrum. Dirt and wear can impair operation ofthe brake. For additional information, seeOPERATING YOUR UNIT section.

S Throttle trigger lock--out. Check that thethrottle trigger cannot beoperated until thethrottle lock--out is pressed.

S Chain catcher. Check that the chaincatcher is not damaged and is firmly at-tached to the body of the chain saw.

S Vibration damping system. Regularlycheck the vibration damping units forcracks or deformation. Make sure thevibration damping units are securely at-tached to the engine unit and handle unit.

S ON/STOP switch. Start the engine andmake sure the engine stops when youmove the ON/STOP switch to the STOPposition.

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MAINTAIN YOUR SAW IN GOODWORKING ORDERS Have all chain saw service performed by aqualified service dealer with the exception ofthe items listed in themaintenance sectionofthis manual. For example, if improper toolsare used to remove or hold the flywheelwhen servicing theclutch, structural damageto the flywheel can occur and cause the fly-wheel to burst.

S Make certain the saw chain stops movingwhen the throttle trigger is released. Forcorrection, refer to CARBURETOR AD-JUSTMENTS.

S Never modify your saw in any way. Useonly attachments supplied or specificallyrecommended by the manufacturer.

S Keep the handles dry, clean, and free of oilor fuel mixture.

S Keep fuel and oil caps, screws, and fas-teners securely tightened.

S Use only McCulloch accessories and re-placement parts as recommended.

HANDLE FUEL WITH CAUTIONS Do not smoke while handling fuel or whileoperating the saw.

S Eliminate all sources of sparks or flame inthe areas where fuel is mixed or poured.There should be nosmoking, open flames,or work that couldcause sparks. Allowen-gine to cool before refueling.

S Mix and pour fuel in an outdoor area on bareground; store fuel in a cool, dry, well venti-lated place; and use an approved, markedcontainer for all fuel purposes. Wipe up allfuel spills before starting saw.

S Move at least 10 feet (3 meters) from fuel-ing site before starting engine.

S Turn the engine off and let saw cool in anon-combustible area, not on dry leaves,straw, paper, etc. Slowly remove fuel capand refuel unit.

S Store theunit and fuel in anareawhere fuelvapors cannot reach sparks or openflames fromwater heaters, electric motorsor switches, furnaces, etc.

KICKBACK

WARNING: Avoid kickback whichcan result in serious injury. Kickback is thebackward, upwardor sudden forwardmotionof the guide bar occurring when the sawchain near the upper tip of theguide bar con-tacts any object such as a log or branch, orwhen the wood closes in and pinches thesaw chain in thecut. Contactinga foreignob-ject in the wood can also result in loss ofchain saw control.S Rotational Kickback can occur when themoving chain contacts an object at the up-per tip of the guide bar. This contact cancause the chain to dig into the object,which stops the chain for an instant. Theresult is a lightning fast, reverse reactionwhich kicks the guide bar up and back to-ward the operator.

S Pinch-Kickback can occur when the thewood closes in and pinches the moving

saw chain in the cut along the top of theguide bar and the saw chain is suddenlystopped. This sudden stopping of thechain results in a reversal of the chainforce used to cut wood and causes thesaw tomove in theoppositedirection of thechain rotation. The saw is driven straightback toward the operator.

S Pull-In can occur when the moving chaincontacts a foreign object in the wood in thecut along the bottom of the guide bar and thesaw chain is suddenly stopped. This suddenstopping pulls the saw forward and awayfrom the operator and could easily cause theoperator to lose control of the saw.

Avoid Pinch--Kickback:S Be extremely aware of situations or obstruc-tions that can causematerial to pinch the topof or otherwise stop the chain.

S Do not cut more than one log at a time.S Do not twist the saw as the bar is with-drawn from an undercut when bucking.

Avoid Pull--In:S Always begin cutting with the engine at fullspeed and the saw housing against wood.

S Use wedges made of plastic or wood.Never use metal to hold the cut open.

Kickback Path

Clear TheWorking Area

Avoid Obstructions

REDUCE THE CHANCE OFKICKBACKS Recognize that kickback can happen.With a basic understanding of kickback,you can reduce the element of surprisewhich contributes to accidents.

S Never let themoving chaincontact any ob-ject at the tip of the guide bar.

S Keep the working area free from obstruc-tions such as other trees, branches, rocks,fences, stumps, etc. Eliminate or avoid anyobstruction that your saw chain could hitwhile you are cutting through a particular logor branch.

S Keep your saw chain sharp and properlytensioned. A looseordull chain can increasethe chance of kickback occurring. Followmanufacturer’s chain sharpening and main-tenance instructions. Check tension at regu-lar intervals with the engine stopped, neverwith the engine running. Make sure the barclamp nuts are securely tightened after ten-sioning the chain.

S Begin and continue cutting at full speed. Ifthe chain is moving at a slower speed, thereis greater chance of kickback occurring.

S Cut one log at a time.S Use extreme caution when re-entering aprevious cut.

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S Do not attempt cuts starting with the tip ofthe bar (plunge cuts).

S Watch for shifting logs or other forces thatcould close a cut and pinch or fall into chain.

S Use the Reduced--Kickback Guide Barand Low--Kickback Chain specified foryour saw.MAINTAIN CONTROL

Never reversehand positions

Stand to the left ofthe saw

Thumb on underside ofhandlebar

Elbow locked

S Keep a good, firm grip on the saw with bothhands when the engine is running and don’tlet go. A firm grip will help you reduce kick-back and maintain control of the saw. Keepthe fingers of your left hand encircling andyour left thumb under the front handlebar.Keep your right hand completely around therear handlewhether your are right handed orleft handed. Keep your left arm straight withthe elbow locked.

S Position your left hand on the front handle-bar so it is in a straight line with your righthand on the rear handle when makingbucking cuts. Never reverse right and lefthand positions for any type of cutting.

S Standwith yourweight evenly balancedonboth feet.

S Stand slightly to the left side of the saw tokeep your body from being in a direct linewith the cutting chain.

S Do not overreach. You could be drawn orthrown off balance and lose control of thesaw.

S Donot cut above shoulder height. It is diffi-cult to maintain control of saw aboveshoulder height.IKICKBACK SAFETY FEATURES

WARNING: The following features areincludedonyour saw tohelp reduce thehazardof kickback; however, such features will not to-tally eliminate this dangerous reaction. As achain saw user, do not rely only on safety de-vices. You must follow all safety precautions,instructions, andmaintenance in this manual to

help avoid kickback and other forces whichcan result in serious injury.S Reduced--Kickback Guide Bar, designedwith a small radius tip which reduces thesize of the kickback danger zone on thebar tip.A Reduced--KickbackGuideBarhasbeen demonstrated to significantly reducethe number and seriousness of kickbacks.

Small Radius Tip

Reduced KickbackSymmetricalGuide Bar

Symmetrical Guide Bar

Large Radius Tip

S Low--Kickback Chain, designed with acontoured depth gauge and guard linkwhich deflect kickback force and allowwood to gradually ride into the cutter.Low-Kickback Chain

Contoured Depth GaugeElongated Guard LinkDeflects KickbackForce And AllowsWood To GraduallyRide Into Cutter

S Handguard, designed to reduce the chanceof your left hand contacting the chain if yourhand slips off the front handlebar.

S Position of front and rear handlebars, de-signedwith distancebetween handles and“in-line” with each other. The spread and“in-line” position of the hands provided bythis design work together to give balanceand resistance in controlling the pivot ofthe saw back toward the operator if kick-back occurs.

WARNING: DO NOT RELY UPONANYOFTHEDEVICESBUILT INTOYOURSAW. YOU SHOULD USE THE SAWPROPERLY AND CAREFULLY TO AVOIDKICKBACK. Reduced--kickback guide barsand low--kickback saw chains reduce thechance and magnitude of kickback and arerecommended. Your saw has a lowkickbackchain and bar as original equipment.Repairson a chain brake should be made by an au-thorized servicing dealer. Take your unit tothe place of purchase if purchased from aservicing dealer, or to the nearest authorizedmaster service dealer.S Tipcontact in somecasesmay cause a light-ning fast reverse REACTION, kicking theguide bar up and back toward the operator.

S Pinching the saw chain along the top of theguide bar may push the guide bar rapidlyback toward the operator.

S Either of these reactions may cause you tolose control of the saw which could resultin serious injury. Do not rely exclusivelyupon thesafety devices built into your saw.

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ASSEMBLYProtective gloves (not provided) should beworn during assembly.ATTACHING THE BUMPER SPIKE(If not already attached)The bumper spike may be used as a pivotwhen making a cut.1. Loosenand removebar knobcompletely

by lifting lever and turning counterclock-wise. Remove clutch cover.

2. Attach the bumper spike with the twoscrews as illustrated.

ATTACHING THE BAR & CHAIN(If not already attached)

WARNING: Recheck each assem-bly step if the saw is received assembled.Al-ways wear gloves when handling the chain.The chain is sharp and can cut you evenwhen it is not moving!1. Move ON/STOP switch to the STOP

position.2. Loosenand removebar knobcompletely

by lifting lever and turning counterclock-wise.

LOOSEN

3. Remove clutch cover and plastic ship-ping spacer (if present).

Clutch Cover

BarKnob

Location ofshippingspacer

4. Slide guide bar on bar bolts until guidebar stops against clutch drum sprocket.

Bar bolts

Guide bar

5. Carefully remove the chain from the pack-age. Hold chain with the drive links asshown.

CUTTERS MUST FACE INDIIRECTION OF ROTATION

Tip ofBar

Cutters Depth Gauge

Drive Links6. Place chain over and behind clutch re-

tainer, fitting the drive links in the clutchdrum sprocket.

7. Fit bottom of drive links between theteeth in the sprocket in the nose of theguide bar.

8. Fit chain drive links into bar groove.9. Pull guide bar forward until chain is snug

inguide bargroove. Ensureall drive linksare in the bar groove.

10. Install clutch cover. Be sure adjustingpinis in the adjusting pin hole in the guidebar.

CAUTION: It is very important when instal-ling the clutch cover that the adjusting pinaligns into the adjusting pin hole in the bar. Fail-ure to install the clutch cover correctly may re-sult in permanent damage to your chain saw.

Backview ofclutchcover

Adjusting pin

11. Install bar knob and finger tighten only.Once the chain is tensioned, you willneed to tighten bar knob.

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CHAIN TENSION (Including unitswith chain already installed)

WARNING: Wear protective gloveswhen handling chain. The chain is sharp andcan cut you even when it is not moving.NOTE: When adjusting chain tension,make sure the bar knob is finger tight only.Attempting to tension the chainwhen the barknob is tight can cause damage.Checking the tension:Use the screwdriver end of the chain adjust-ment tool (bar tool) to move chain aroundguide bar. If the chain does not rotate, it is tootight. If the chain is too loose, itwill sagbelowthe bar.

Bar Knob

GuideBar

AdjustingWheel

Chain AdjustmentTool

(Bar Tool)Adjusting the tension:Chain tension is very important. Chains stretchduring use. This is especially true during thefirst few times youuse your saw. Always checkchain tension each time you use and refuelyour saw.1. Lift lever on bar knob and turn counter-

clockwise 1 turn to loosen clutch cover.

LOOSEN2. Turn adjusting wheel (downward direc-

tion) to tension chain until chain solidlycontacts bottom of guide bar rail. Lift tipof guide bar while adjusting tension.

Tightenchain

Adjusting Wheel

Loosenchain

3. Using the screwdriver end of the chainadjustment tool (bar tool), move chainaround guide bar to ensure all links are inbar groove.

4. While lifting tip of guide bar, tighten barknob securely (clockwise). Hand tight-en only!

TIGHTEN

BarKnob

5. Push lever on bar knob down to return le-ver to closed/locked position.

WARNING: Failure to push lever onbar knob down to closed/locked positioncould result in serious personal injury ordamage to your chain saw.6. Use the screwdriver end of the chain ad-

justment tool (bar tool) to move chainaround guide bar.

7. If chain does not rotate, it is too tight.Loosen bar knob 1 turn (counterclock-wise); then, loosen chain by turning theadjusting wheel 1/4 turn (upward direc-tion). Retighten bar knob.

8. If chain is too loose, it will sag below theguidebar.DONOToperate thesaw if thechain is loose.

WARNING: If the saw is operatedwith a loose chain, the chain could jump offthe guide bar and result in serious injury.

WARNING:Muffler is very hot duringand after use. Do not touch themuffler or al-low combustible material such as dry grassor fuel to do so.

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OPERATING YOUR UNITBEFORE STARTING ENGINE

WARNING: Be sure to read the fuelinformation in the safety rules before you be-gin. If you donot understand the safety rules,do not attempt to fuel your unit. Contact anauthorized service dealer.BAR AND CHAIN LUBRICATIONThe bar and chain require continuous lubri-cation. Lubrication is provided by the auto-matic oiler system when the oil tank is keptfilled. Lack of oil will quickly ruin the bar andchain. Too little oil will cause overheatingshown by smoke coming from the chain and/or discoloration of the bar. Only use Bar andChain Oil for bar and chain lubrication.FUELING ENGINE

WARNING: Remove fuel cap slowlywhen refueling.This engine is certified to operate on unleadedgasoline. Before operation, gasoline must bemixed with a good quality 2-cycle air-cooledengine oil designed to be mixed at a ratio of40:1. A 40:1 ratio is obtained by mixing 0,125liter of oil with 5 liters of unleaded gasoline. DONOT USE automotive or boat oil. These oilswill cause engine damage. When mixing fuelfollow the instructions printed on the container.Always read and follow the safety rules relatingto fuel before fueling your unit.IMPORTANTExperience indicates that alcohol blended fuels(called gasohol or using ethanol or methanol)can attract moisture which leads to separationand formation of acids during storage. Acidicgas can damage the fuel system of an enginewhile in storage. To avoid engine problems,empty the fuel system before storage for 30days or longer. Drain the gas tank, start the en-gine and let it run until the fuel lines and carbu-retor are empty. Use fresh fuel next season.Never use engine or carburetor cleaner prod-ucts in the fuel tank orpermanent damagemayoccur.CHAIN BRAKEEnsure chain brake is disengaged by pullingthe front hand guard back toward the front han-dle as far as possible.The chainbrakemustbedisengaged before cutting with the saw.

WARNING: The chain must notmove when the engine runs at idle speed. Ifthe chain moves at idle speed refer to CAR-BURETOR ADJUSTMENT within thismanual. Avoid contact with the muffler. A hotmuffler can cause serious burns.To stop the engine, move the ON/STOPswitch to the STOP position.To start the engine, hold the saw firmly onthe ground as illustrated below. Make surethe chain is free to turn without contactingany object.

Left Handon FrontHandle

Starter Rope Handle

Right Foot Through Rear Handle

Use only 40 --- 45 cm of rope per pull.Hold saw firmly while pulling starter rope.

IMPORTANT POINTS TO REMEMBERWhenpulling thestarter rope, donot use the fullextent of the rope as this can cause the rope tobreak. Do not let starter rope snap back. Holdthe handle and let the rope rewind slowly.For cold weather starting, start the unit at fullchoke; allow the engine to warm up beforesqueezing the throttle trigger.NOTE:Donot cutmaterialwith thechoke/fastidle lever at the FULL CHOKE position.

STARTING A COLD ENGINE (or awarm engine after running out offuel)NOTE: In the following steps,when thecho-ke/fast idle lever is pulled out to the full ex-tent, the correct throttle setting for starting isset automatically.

IGNITIONSWITCH

ONSTOP

ChokeLever

1. Move ON/STOP switch to the ON posi-tion.

2. Slowly press primer bulb 6 times.3. Pull out choke/fast idle to the full extent

(to the FULL CHOKE position).4. Pull the starter rope sharply 5 times with

your right hand. Then, proceed to thenext step.

NOTE: If the engine sounds as if it is tryingto start before the 5th pull, stop pulling andimmediately proceed to the next step.5. Push the choke/fast idle lever in to the

HALF CHOKE position.

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OFFHALF

CHOKE/FAST IDLE LEVER

FULL

6. Pull the starter rope sharply with yourright hand until the engine starts.

7. Allow the engine to run for approximately30 seconds. Then, squeeze and releasethrottle trigger to allow engine to return toidle speed.

STARTING A WARM ENGINE1. Move ON/STOP switch to the ON posi-

tion.2. Pull the choke/fast idle lever out to the

FULL CHOKE position to set the fastidle, then push the lever in to the HALFCHOKE position.

3. Slowly press the primer bulb 6 times.4. Pull the starter rope sharply with your

right hand until the engine starts.5. Squeeze and release throttle trigger to

allow engine to return to idle speed.DIFFICULT STARTING (or starting aflooded engine)The engine may be flooded with too muchfuel if it has not started after 10 pulls.Flooded engines can be cleared of excessfuel by pushing the choke/fast idle lever incompletely (to the OFF CHOKE position)and then following the warm engine startingprocedure listed above. Ensure the ON/STOP switch is in the ON position.Starting could require pulling the starter ropehandle many times depending on how badlythe unit is flooded. If engine fails to start, re-fer to the TROUBLESHOOTING TABLE.CHAIN BRAKE

WARNING: If the brake band is worntoo thin it may break when the chain brake istriggered. With a broken brake band, the chainbrake will not stop the chain. The chain brakeshould be replaced by an authorized servicedealer if any part is worn to less than 0,02″ (0,5

mm) thick. Repairs on a chain brake should bemade by an authorized service dealer. Takeyour unit to the place of purchase if purchasedfromaservicing dealer, or to the nearest autho-rized master service dealer.S This saw is equipped with a chain brake.The brake is designed to stop the chain ifkickback occurs.

S The inertia activated chain brake is activatedif the front hand guard is pushed forward, ei-ther manually or by centrifugal force.

S If the brake is already activated, it is disen-gaged by pulling the front hand guard backtoward the front handle as far as possible.

S When cuttingwith the saw, the chainbrakemust be disengaged.

EngagedDisengaged

Braking function controlCAUTION: The chain brake must bechecked several times daily. The enginemust be runningwhenperforming this proce-dure. This is the only instancewhen the sawshould be placed on the ground with the en-gine running.Place the saw on firm ground. Grip the rearhandlewith your right hand and the front han-dle with your left hand. Apply full throttle byfully depressing the throttle trigger. Activatethe chain brake by turning your left wristagainst the hand guard without releasingyour grip around the front handle. The chainshould stop immediately.Inertia activating function control

WARNING:When performing the fol-lowing procedure, the engine must be turnedoff.Grip the rear handlewith your right hand andthe front handle with your left hand. Hold thechain saw approximately 35 cm above astump or other wooden surface. Releaseyour grip on the front handle and use theweight of the saw to let the top of the guidebar fall forward and contact the stump.When the tip of the bar hits the stump, thebrake should activate.

CUTTING METHODSIMPORTANT POINTSS Check chain tension before first use and af-ter 1 minute of operation. See CHAIN TEN-SION in the ASSEMBLY section.

S Cut wood only. Do not cut metal, plastics,masonry, non-wood building materials, etc.

S The bumper spike may be used as a pivotwhen making a cut.

S Stop the saw if the chain strikes a foreignobject. Inspect thesaw and repair parts asnecessary.

S Keep thechainout of dirt and sand. Evenasmall amount of dirt will quickly dull a chainand increase the possibility of kickback.

S Practice cutting a few small logs using thefollowing techniques to get the “feel” of us-ing your saw before you begin a majorsawing operation.S Squeeze the throttle trigger and allow the

engine to reach full speed before cutting.S Begin cutting with the saw frame

against the log.

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S Keep the engine at full speed the entiretime you are cutting.

S Allow thechain tocut for you. Exert onlylight downward pressure.

S Release the throttle trigger as soon asthe cut is completed, allowing the en-gine to idle. If you run the saw at fullthrottle without a cutting load, unneces-sary wear can occur.

S To avoid losing control when cut is com-plete, do not put pressure on saw at endof cut.

S Stop theenginebeforesetting the sawdown.TREE FELLING TECHNIQUES

WARNING: Felling a tree requireschain saw skills and experience. Inexperi-enced users should not fell trees. Do not at-tempt any task that makes you feel uncom-fortable or unsure.

WARNING:Donot cut near buildingsor electrical wires if you do not know the di-rection of tree fall, at night since you will notbe able to see well, or during bad weathersuch as rain, snow, or strong winds. as fall isunpredictable.Carefully plan your sawing operation in ad-vance. You need a clear area all around thetree so you can have secure footing. Checkfor broken or dead branches which can fallon you causing serious injury.Natural conditions that can cause a tree tofall in a particular direction include:S The wind direction and speed.S The lean of the tree. The lean of a treemight not be apparent due to uneven orsloping terrain. Use a plumb or level to de-termine the direction of tree lean.

S Weight and branches on one side.S Surrounding trees and obstacles.Look for decay and rot. If the trunk is rotted,it can snap and fall toward the operator.Make sure there is enough room for the tree tofall. Maintain a distance of 2-1/2 tree lengthsfrom the nearest person or other objects. En-gine noise can drown out a warning call.Remove dirt, stones, loose bark, nails, staples,and wire from the tree where cuts are to bemade.

Direction of Fall

45_

Plan a clear retreat path

FELLING LARGE TREES(15 cm in diameter or larger)The notch method is used to fell large trees.A notch is cut on the side of the tree in thede-sired direction of fall. After a felling cut ismade on the opposite side of tree, the treewill tend to fall into the notch.

NOTCH CUT AND FELLING THETREES Make notch cut by cutting the top of thenotch first. Cut through 1/3 of the diameterof the tree. Next complete thenotch by cut-ting the bottom of the notch. See illustra-tion. Once the notch is cut remove thenotch of wood from the tree.

Notch

First cut

Second cut

Final cut here. 5 cm abovecenter of notch.

5 cm

5 cm

S After removing the wood from the notch,make the felling cut on the opposite side ofthenotch.This is donebymakinga cut about5 cm higher than the center of the notch.This will leave enough uncut wood betweenthe felling cut and the notch to form a hinge.This hingewill help prevent the tree from fall-ing in the wrong direction.

Openingof fellingcut

Closingof notch

Hinge holds tree on stump and helpscontrol fall

NOTE: Before felling cut is complete, usewedges to open the cut when necessary tocontrol thedirectionof fall. To avoidkickbackor chain damage, use wood or plasticwedges, but never steel or iron wedges.S Be alert to signs that the tree is ready to fall:cracking sounds, widening of the felling cut,or movement in the upper branches.

S As tree starts to fall, stop saw, put it down,and get away quickly on your planned re-treat path.

S DO NOT cut down a partially fallen tree withyour saw. Be extremely cautious with par-tially fallen trees that may be poorly sup-ported. When a tree doesn’t fall completely,set the saw aside and pull down the treewitha cable winch, block and tackle, or tractor.CUTTING A FALLEN TREE(BUCKING)Bucking is the term used for cutting a fallentree to the desired log length.

WARNING: Do not stand on the logbeing cut. Any portion can roll causing lossof footing and control. Do not stand downhillof the log being cut.

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Important pointsS Cut only one log at a time.S Cut shattered wood very carefully; sharppieces ofwoodcould be flung towardoper-ator.

S Use a sawhorse to cut small logs. Neverallow another person to hold the log whilecutting and never hold the logwith your legor foot.

S Do not cut in an area where logs, limbs,and roots are tangled. Drag the logs into aclear area before cutting by pulling out ex-posed and cleared logs first.TYPES OF CUTTING USED FORBUCKING

WARNING: If saw becomes pinchedor hung in a log, don’t try to force it out. Youcan lose control of the saw resulting in injuryand/or damage to the saw. Stop the saw,drive a wedge of plastic or wood into the cutuntil the saw can be removed easily. Restartthe saw and carefully reenter the cut. Do notattempt to restart your sawwhen it is pinchedor hung in a log.

Turn saw OFF and use a plastic orwooden wedge to force cut open.Overcutting begins on the top sideof the logwith the saw against the log. When overcut-ting use light downward pressure.

Overcutting

Undercutting

Undercutting involves cutting on the under-side of the logwith top of saw against the log.When undercutting use light upward pres-sure. Hold saw firmly and maintain control.The saw will tend to push back toward you.

WARNING: Never turn saw upsidedown to undercut. The saw cannot be con-trolled in this position.First cut on pressure side of log

Second cut

First cut on pressure side of log

Second cut

BUCKING WITHOUT ASUPPORTS Overcut through 1/3 of the diameter of thelog.

S Roll the log over and finish with a secondovercut.

S Give special attention to logs under strainto prevent the saw from pinching. Makethe first cut on the pressure side to relievethe stress on the log.BUCKING USING A LOG OR SUP-PORT STANDS Remember your first cut is always on thepressure side of the log.

S Your first cut should extend 1/3 of thediameter of the log.

S Finish with your second cut.

1st Cut

2nd CutUsing a log for support

2nd Cut

1st Cut

1st Cut

2nd CutUsing a support stand

1st Cut

2nd Cut

LIMBING AND PRUNING

WARNING: Be alert for and guardagainst kickback. Do not allow the movingchain to contact any other branched or objectsat the nose of the guide bar when limbing orpruning. Allowing such contact can result inserious injury.

WARNING: Never climb into a tree tolimb or prune. Do not stand on ladders, plat-forms, a log, or inany positionwhich cancauseyou to lose your balance or control of the saw.IMPORTANT POINTSS Watch out for springpoles. Use extremecaution when cutting small size limbs. Slen-dermaterialmay catch the sawchain andbewhipped toward you or pull you off balance.

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S Be alert for springback. Watch out forbranches that are bent or under pressure.Avoid being struck by the branch or thesaw when the tension in the wood fibers isreleased.

S Keep a clear work area. Frequently clearbranches out of the way to avoid trippingover them.LIMBINGS Always limba treeafter it is cut down. Onlythen can limbing be done safely and prop-erly.

S Leave the larger limbs underneath thefelled tree to support the tree as you work.

S Start at base of the felled tree and work to-ward the top, cutting branches and limbs.Remove small limbs with one cut.

S Keep the tree between you and the chainas much as possible.

S Remove larger, supporting branches withthecutting techniques described inBUCK-ING WITHOUT A SUPPORT.

S Always use an overcut to cut small andfreely hanging limbs. Undercutting couldcause limbs to fall and pinch saw.

PRUNING

WARNING: Limit pruning to limbsshoulder height or below. Do not cut ifbranches are higher than your shoulder. Geta professional to do the job.S Make your fist cut 1/3 of the way throughthe bottom of the limb.

S Next make a 2nd cut all the way throughthe limb. Then cut a third overcut leavinga 3 to 5 cmcollar from the trunk of the tree.

First cut

Second cutThird cut

Collar

Pruning technique

SERVICE AND ADJUSTMENTS

WARNING: Improper maintenancecould result in serious engine damageor in se-rious injury.

WARNING: Disconnect the sparkplug before performingmaintenance, exceptfor carburetor adjustments.

We recommend all service and adjustmentsnot listed in this manual be performed by anAuthorized Service Dealer.

MAINTENANCE SCHEDULECheck:Fuel mixture level Before each use. . . .Bar lubrication Before each use. . . . . . .Chain tension Before each use. . . . . . .Chain sharpness Before each use. . . .For damaged parts Before each use. .For loose caps Before each use. . . . . .For loose fasteners Before each use. . .For loose parts Before each use. . . . . .Inspect and Clean:Bar Before each use. . . . . . . . . . . . . . . .Complete saw After each use. . . . . . .Air filter Every 5 hours*. . . . . . . . . . . . .Chain brake Every 5 hours*. . . . . . . .Spark arresting screenand muffler Every 25 hours*. . . . . . . . .Replace spark plug Yearly.Replace fuel filter Yearly. . .* Hours of Operation

AIR FILTER

CAUTION: Do not clean filter in gaso-line or other flammable solvent to avoidcreating a fire hazard or producing harmfulevaporative emissions.

Cleaning the air filter:A dirty air filter decreases engine perform-ance and increases fuel consumption andharmful emissions. Always clean after every5 hours of operation.1. Clean the cover and the area around it to

keep dirt and sawdust from falling intothe carburetor chamber when the coveris removed.

2. Remove the parts as illustrated.3. Wash the filter in soap and water. Rinse

in clean cool water. Air dry completelybefore reinstalling.

4. Reinstall parts.

Air FilterCover

CylinderCover

Air Filter

BAR MAINTENANCEIf your saw cuts to one side, has to be forcedthrough the cut, or been runwith an improperamount of bar lubrication it may be neces-sary toserviceyour bar. Awornbar will dam-age your chain and make cutting difficult.

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After each use, ensure ON/STOP switch isin the STOP position, then clean all sawdustfrom the guide bar and sprocket hole.To maintain guide bar:S Move ON/STOP switch to the STOP posi-tion.

S Loosen and remove bar nuts and chainbrake. Remove bar and chain from saw.

S Clean the oil holes and bar groove after each5 hours of operation.

Remove Sawdust FromGuide Bar Groove

Oil Holes

S Burring of guide bar rails is a normalprocess of rail wear. Remove these burrswith a flat file.

S When rail top is uneven, use a flat file to re-store square edges and sides.

Correct GrooveWorn Groove

File Rail Edgesand SidesSquare

Replace guide bar when the groove is worn,the guide bar is bent or cracked, or whenexcess heating or burring of the rails occurs.If replacement is necessary, use only theguidebar specified for your saw in the repair parts listor on the decal located on the chain saw.SPARK PLUGThe spark plug should be replaced eachyear to ensure the engine starts easier andruns better. Ignition timing is fixed and non-adjustable.1. Loosen 3 screws on cylinder cover.2. Remove the cylinder cover.3. Pull off the spark plug boot.4. Remove spark plug from cylinder and

discard.5. Replace with Champion RCJ--7Y spark

plug and tighten securely with a 19 mmsocket wrench. Spark plug gap shouldbe 0,5 mm.

6. Reinstall the spark plug boot.7. Reinstall the cylinder cover and 3

screws. Tighten securely.

SparkPlug

CylinderCover

SparkPlug Boot

CHAIN SHARPENING

WARNING: Improper chain sharpen-ing techniques and/or depth gauge mainte-nance will increase the chance of kickbackwhich can result in serious injury.

WARNING: Wear protective gloveswhen handling chain. The chain is sharp andcan cut you even when it is not moving.Conditions which indicate the need for chainsharpening:S Reduction in size of wood chips. The sizeof thewood chipwill decrease as thechaingets duller until it becomes more like apowder than a chip. Note that dead orrotted wood will not produce a good chip.

S Saw cuts to one side or at an angle.S Saw has to be forced through the cut.

Tools required:S 5/32 inch (4 mm) diameter round file andfile holder

S Flat fileS Depth gauge tool

TO SHARPEN CHAIN:1. Move ON/STOP switch to the STOP

position.2. Check chain for proper tension. Adjust

chain tension if necessary.3. Sharpen cutters.

S To sharpen the cutters, position thefile holder level (90˚) so that it restson the top edges of the cutter anddepth gauge.NOTE: The chain has both left andright hand cutters.

Depth Gauge

FileFile Holder

Cutter90˚

S Align the 30˚ file holder marks paral-lelwith thebar and to thecenter of thechain.

Cutter

Cutter30˚File Holder Line

S Sharpen cutters on one side of thechain first. File from the inside of eachcutter to the outside. Then, turn thechain saw around and repeat the pro-cess for the other side of the chain.

S File on the forward stroke only. Use 2or 3 strokes per cutting edge.

S Keep all cutters the same lengthwhen filing.

S File enough to remove any damageto cutting edges (side plate and topplate of cutter).

15

All CuttersSame Length

Remove Damage

Top PlateSide Plate

S File chain to meet the specificationsas shown.

30˚

80˚ 60˚

RoundedCorner

0,65 mm

Right

Hook Angle

Wrong

Squared OffCorner

Too Much Hook Angle

WARNING: Maintain the proper hookangle according to the manufacturer’s specifi-cations for the chain you are using. Improperhook angle will increase the chance of kick-back which can result in serious injury.4. Check and lower depth gauges.

Depth Gauge Tool

Depth Gauge

File

S Place gauge tool on cutter.S If the depth gauge is higher than the

depthgauge tool, file it level to the topofthe depth gauge tool.

S Maintain rounded front corner ofdepth gauge with a flat file.NOTE: The very top of the depthgauge should be flat with the fronthalf rounded off with a flat file.

If you require further assistance or are unsureabout performing this procedure, contact yourauthorized service dealer.CARBURETOR ADJUSTMENT

WARNING: The chain will be movingduring most of this procedure. Wear your pro-tective equipment and observe all safety pre-cautions. The chain must not move at idlespeed.

The carburetor has been carefully set at thefactory. Adjustments may be necessary ifyou notice any of the following conditions:S Chain moves at idle. See IDLE SPEED--Tadjusting procedure.

S Saw will not idle. See IDLESPEED--T ad-justing procedure.

Idle Speed--TAllow engine to idle. If the chain moves, idleis too fast. If the enginestalls, idle is tooslow.Adjust speed until engine runs without chainmovement (idle too fast) or stalling (idle tooslow). The idle speed screw is located in thearea above the primer bulb and is labeled T.S Turn idle speed screw (T) clockwise to in-crease engine speed.

S Turn idle speed screw (T) counterclock-wise to decrease engine speed.STORAGE

WARNING:Stop engine and allow tocool, and secure the unit before storing ortransporting in a vehicle. Store unit and fuelin an area where fuel vapors cannot reachsparks or open flames from water heaters,electric motors or switches, furnaces, etc.Storeunitwithall guards inplace. Positionsothat any sharp object cannot accidentallycause injury to passersby. Store the unit outof reach of children.S Before storing, drain all fuel from the unit.Start engine and allow to run until it stops.

S Clean the unit before storing. Pay particu-lar attention to the air intake area, keepingit free of debris. Use a mild detergent andsponge to clean the plastic surfaces.

S Donot store theunit or fuel ina closedareawhere fuel vapors can reach sparks or anopen flame fromhotwater heaters, electricmotors or switches, furnaces, etc.

S Store in a dry area out of the reach of chil-dren.

S Ensure the machine is cleaned and that acomplete service is carried out beforelong--term storage.

S The guide bar and chain must always becovered with a scabbard when the machineis being transported or in storage in order toprevent accident contact with the sharpchain. Even a non--moving chain can causeserious cuts to yourself or persons youbump into with an exposed chain.

CAUTION: It is important to preventgum deposits from forming in essential fuelsystem parts such as the carburetor, fuel fil-ter, fuel hose, or fuel tank during storage. Al-cohol blended fuels (called gasohol or usingethanol or methanol) can attract moisturewhich leads to fuel mixture separation andformation of acids during storage. Acidic gascan damage the engine.

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TROUBLE CAUSE REMEDYEngine will notstart or will runonly a fewseconds afterstarting.

1. Ignition switch off.2. Engine flooded.

3. Fuel tank empty.4. Spark plug not firing.5. Fuel not reachingcarburetor.

1. Move ignition switch to ON.2. See “Difficult Starting” inOperation Section.

3. Fill tank with correct fuel mixture.4. Install new spark plug.5. Check for dirty fuel filter; replace.Check for kinked or split fuel line;repair or replace.

Engine willnot idleproperly.

1. Idle speed requiresadjustment.

2. Carburetor requiresadjustment.

1. See “Carburetor Adjustment” in theService and Adjustments Section.

2. Contact an authorized service dealer.

1. Air filter dirty.2. Spark plug fouled.3. Chain brake engaged.4. Carburetor requiresadjustment.

Engine will notaccelerate,lacks power,or dies undera load.

1. Clean or replace air filter.2. Clean or replace plug and regap.3. Disengage chain brake.4. Contact an authorized service dealer.

Enginesmokesexcessively.

1. Too much oil mixed withgasoline.

1. Empty fuel tank and refill withcorrect fuel mixture.

WARNING: Always stop unit and disconnect spark plug before performing all ofthe recommended remedies below except remedies that require operation of the unit.

TROUBLESHOOTING TABLE

Chain movesat idle speed.

1. Idle speed requiresadjustment.

2. Clutch requires repair.

1. See “Carburetor Adjustment” in theService and Adjustments Section.

2. Contact an authorized service dealer.

DECLARATION OF CONFORMITYEC Declaration of Conformity (Only applies to Europe)

We, Husqvarna AB, SE--561 82 Huskvarna, Sweden, Tel: +46--36--146000, as authorisedrepresentative in the Community, declare that the chain saw model McCulloch Mac 842SAS-AV from serial numbers 2009--031(N or D)00001 and onwards (the year is clearly statedon the rating plate, followed by the serial number), comply with the requirements of theCOUNCIL’S DIRECTIVES:

of 22 June 1998 “relating to machinery” 98/37/EC, annex IIA;

of 15 December 2004 “relating to electromagnetic compatibility” 2004/108/EC, and applicablesupplements; and

of 8 May 2000 “relating to the noise emissions in the environment” in accordance with AnnexV of 2000/14/EC. Themeasured sound power is 108,7 dB(A), the guaranteed sound power is113 dB(A) and the net power is 1,6 kW.

The following standards have been applied: ISO 11681--1:2004, EN/ISO 12100--1:2003,EN/ISO 12100--2:2003, and CISPR 12:2001.Notified body, 0404 theSwedishMachinery Testing Institute, Fyrisborgsgatan 3S--75450Uppsala, Sweden, has carried out EC type approval. The certificate(s) is numbered:404/06/1138.

The supplied Chain Saw conforms with the sample that underwent the EC type approval.

09--1--31

Ronnie E. Goldman, Director of EngineeringHandheld Consumer Products

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TECHNICAL DATA SHEET

Engine Mac 842Cylinder volume, cm3 42Stroke, mm 32Idle speed, rpm 3,000Recommended max.speed, unloaded, rpm 12,000Power, kW 1,6

Ignition systemManufacturer WalbroType of ignition system InductiveSpark plug ChampionElectrode gap, mm 0,5

Fuel and lubrication systemManufacturer ZamaCarburetor type W--26BFuel capacity, litre 0,34Oil pump capacity at8500 rpm, ml/min 4 -- 8Oil capacity, litre 0,2Type of oil pump Automatic

WeightWithout bar and chain, kg 5,5

BAR CHAINLength Pitch MaxInches Inches Tip Radius14 0,375 7T Oregon 91VJ14 0,375 7T Oregon 91VG16 0,375 7T Oregon 91VJ16 0,375 7T Oregon 91VG18 0,375 7T Oregon 91VJ18 0,375 7T Oregon 91VG

Noise levels Mac 842Equivalent (see note 1) noisepressure level at operator’s ear,measured according to relevantinternational standards, dB(A) 99,7Equivalent (see note 1) noisepower level, measuredaccording to relevantinternational standards, dB(A) 108,7

Vibration levels(see note 2)Front handle, m/s2 5,4Rear handle, m/s2 5,4

Chain/barStandard bar length,in/cm 14/35 16/40 18/45Recommendedbar lengths,in/cm 14/35 16/40 18/45Usable cutting length,in/cm 13,5/34 15,5/3917,5/44Chain speed atmaximum power,m/sec 18,5Pitch, inches 0,375Thickness of drivelink, mm 1,3No. of teeth on drive sprocket 6

Note 1: Equivalent noise level is, according toISO 22868, calculated as the time--weightedenergy total for noise levels under variousworking conditions with the following time dis-tribution, 1/3 idle, 1/3 full load, 1/3 full speed.

Note2: Equivalent vibration level is, accordingto ISO 22867, calculated as the time--weightedenergy total for vibration levels under variousworking conditions with the following time dis-tribution: 1/3 idle, 1/3 full load, 1/3 full speed.

0,375 80° 30° 0°0,050/1,3 5/32 / 4,0 0,025/0,6591VJ

in/cm :dl

91VG 0,375 0,050/1,3 5/32 / 4,0 80° 30° 0° 0,025/0,65

14/35:5216/40:5618/45:62

14/35:5216/40:5618/45:62