STIHL MS 241 C-M Owners Instruction Manual

EnglishWear an approved safetyhard hat to reduce therisk of injury to your head.Chain saw noise maydamage your hearing.Wear sound barriers (earplugs or ear mufflers) tohelp protect your hearing.Continual and regularusers should have theirhearing checkedregularly.Be particularly alert and cautious whenwearing hearing protection becauseyour ability to hear warnings (shouts,alarms, etc.) is restricted.THE CHAIN SAWFor illustrations and definitions of thechain saw parts see the chapter on"Main Parts."MS 241 C-MWARNINGNever modify this chain saw in any way.Only attachments supplied by STIHL orexpressly approved by STIHL for usewith the specific STIHL model areauthorized. Although certainunauthorized attachments are useablewith STIHL chain saws, their use may, infact, be extremely dangerous.Accidental acceleration of the enginecan cause the saw chain to rotate.Always engage the chain brake whentaking more than a few steps.WARNINGNever operate your chain saw if it isdamaged, improperly adjusted ormaintained, or not completely orsecurely assembled.If this chain saw is subjected tounusually high loads for which it was notdesigned (e.g. heavy impact or a fall),always check that it is in good conditionbefore continuing work. Check inparticular that the fuel system is tight (noleaks) and that the controls and safetydevices are working properly. Do notcontinue operating this chain saw if it isdamaged. In case of doubt, have itchecked by your STIHL servicing dealer.THE USE OF THE CHAIN SAWTransporting the Chain SawWARNINGAlways stop the engine before puttingthe chain saw down. Carrying a chainsaw with the engine running may beextremely dangerous.001BA275 KNTo reduce the risk ofinjury to your eyes neveroperate your power toolunless wearing gogglesor properly fitted protective glasses withadequate top and sideprotection complying withANSI Z87 " " (or yourapplicable national standard). If there is a risk ofinjury to your face, STIHLrecommends that youalso wear a face shield orface screen over yourgoggles or protectiveglasses.By hand: When transporting your chainsaw by hand, the engine must be shutoff and the chain saw must be in theproper position, i.e., grip the top handleand place the muffler away from thebody; the chain guard (scabbard) shouldbe over the saw chain and guide bar,which should point backwards, awayfrom the direction in which you arewalking.By vehicle: When transporting in avehicle, keep saw chain and bar coveredwith the chain guard (scabbard).Properly secure your chain saw toprevent turnover, fuel spillage anddamage to the chain saw.5

EnglishYour STIHL chain saw uses an oilgasoline mixture for fuel (see thechapter on "Fuel" of your instructionmanual).WARNINGGasoline is an extremelyflammable fuel. If spilledand ignited by a spark orother ignition source, itcan cause fire and serious burn injury orproperty damage. Useextreme caution whenhandling gasoline or fuelmix. Do not smoke orbring any fire or flamenear the fuel or the chainsaw. Note that combustible fuel vapor mayescape from the fuelsystem.Fueling InstructionsWARNINGFuel your chain saw in well-ventilatedareas, outdoors. Always shut off theengine and allow it to cool beforerefueling. Gasoline vapor pressure maybuild up inside the fuel tank dependingon the fuel used, the weather conditionsand the tank venting system.In order to reduce the risk of burns andother personal injury from escaping gasvapor and fumes, remove the fuel fillercap on your chain saw carefully so as toallow any pressure build-up in the tankto release slowly. Never remove the fuelfiller cap while the engine is running.6Select bare ground for fueling and moveat least 10 feet (3 m) from the fuelingspot before starting the engine. Wipe offany spilled fuel before starting yourchain saw.WARNINGCheck for fuel leakagewhile refueling and duringoperation. If fuel leakageis found, do not start orrun the engine until theleak is fixed and anyspilled fuel has beenwiped away. Take carenot to get fuel on yourclothing. If this happens,change your clothingimmediately.tank with the positioning mark on thegrip of the cap and the "open" mark onthe fuel tank opening lining up. Using thegrip, press the cap down firmly whileturning it clockwise as far as it will go(approx. 1/4 turn). The positioning markon the cap should now line up with the"closed" mark on the tank.Fold the grip flush withthe top of the cap. Gripthe cap and check fortightness. If the grip doesnot lie completely flushwith the cap and thedetent on the grip doesnot fit in the corresponding recess in the filleropening, or if the cap isloose in the filler opening,the cap is not properlyseated and tightened andyou must repeat theabove steps.Different models may be equipped withdifferent fuel caps.Toolless cap with gripMisaligned, damaged or broken capWARNINGNIn order to reduce the risk of fuel spillageand fire from an improperly tightenedfuel cap, correctly position and tightenthe fuel cap in the fuel tank opening.If the cap does not drop fully into theopening when the positioning marksline up and/or if the cap does nottighten properly when twisted, thebase of the cap may be prematurelyrotated (in relation to the top) to theclosed position. Such misalignmentcan result from handling, cleaningor an improper attempt attightening.001BA234 KNFuelTo do this with this STIHL cap, raise thegrip on the top of the cap until it is uprightat a 90 angle. Insert the cap in the fuelMS 241 C-M

EnglishSee also the "Fueling" chapter in yourInstruction Manual for additionalinformation.Left:Bottom of cap in closed position – inner mark (1) in linewith outer mark.Bottom of cap in correct position for installation – innermark is under the grip andnot in line with the outermark.001BA239 KNRight:001BA238 KN1Before OperationNNTo return the cap to the openposition for installation, turn the cap(with the grip up) until it drops fullyinto the tank opening. Next, twist thecap counterclockwise as far as it willgo (approx. 1/4 turn) – this will twistthe base of the cap into the correctposition for installation. Then, twistthe cap clockwise, closing itnormally.If your cap still does not tightenproperly, it may be damaged orbroken; immediately stop use of theunit and take it to your authorizedSTIHL dealer for repair.MS 241 C-MTake off the chain guard (scabbard) andinspect the chain saw for propercondition and operation. (See themaintenance chart near the end of theinstruction manual.)WARNINGAlways check your chain saw for propercondition and operation before starting,particularly the throttle trigger, throttletrigger lockout, stop switch and cuttingattachment. The throttle trigger mustmove freely and always spring back tothe idle position. The Master ControlLever / stop switch must move easily toSTOP, 0 or †. Never attempt to modifythe controls or safety devices.WARNINGCheck fuel system for leaks, especiallythe visible parts, e.g., filler cap, hoseconnections, manual fuel pump (only forchain saws equipped with a manual fuelpump). Do not start the engine if thereare leaks or damage – risk of fire! Havethe chain saw repaired by a STIHLservicing dealer before using it.WARNINGCheck that the spark plug boot issecurely mounted on the spark plug – aloose boot may cause arcing that couldignite combustible fumes and cause afire.For proper assembly of the bar and sawchain follow the procedure described inthe chapter "Mounting the Bar andChain" of your instruction manual.STIHL Oilomatic saw chain, guide barand sprocket must match each other ingauge and pitch. Before replacing anybar and chain, see the chapter entitled"Specifications" in the instructionmanual and the chapter "ReactiveForces including Kickback".Since longer bars add weight and maybe more difficult to control, select theshortest bar that will meet your cuttingneeds.WARNINGProper tension of the chain is extremelyimportant. In order to avoid impropersetting, the tensioning procedure mustbe followed as described in yourmanual. Always make sure thehexagonal nut(s) for the sprocket coveris (are) tightened securely aftertensioning the saw chain in order tosecure the bar. Never start the chainsaw with the sprocket cover loose.Check chain tension once more afterhaving tightened the nut(s) andthereafter at regular intervals (wheneverthe saw is shut off). If the saw chainbecomes loose while cutting, shut off theengine and then tighten. Never try toadjust the saw chain while the engine isrunning!WARNINGAfter adjusting a saw chain, start thechain saw, let the engine run for a while,then switch engine off and recheck sawchain tension. Proper saw chain tensionis very important at all times.7

EnglishFor specific starting instructions, see theappropriate section of your instructionmanual.StartingWARNINGTo reduce the risk of fire and burninjuries, start the engine at least 10 feet(3 m) from the fueling spot, outdoorsonly.Start and operate your chain sawwithout assistance. For specific startinginstructions, see the appropriate sectionof the instruction manual. Proper startingmethods reduce the risk of injury.WARNINGTo reduce the risk of injury from sawchain contact and / or reactive forces,the chain brake must be engaged whenstarting the chain saw. If your chain sawis equipped with the Quickstop Pluschain brake system, it is not sufficient to8001BA114 KNWARNINGBe sure that the guide bar and saw chainare clear of you and all otherobstructions and objects, including theground. If the upper quadrant of the tip ofthe bar touches any object, it may causekickback to occur (see section onreactive forces). Never attempt to startthe chain saw when the guide bar is in acut or kerf.engage that brake only for starting,because the saw chain may begin torotate at high speed when the throttletrigger lockout is depressed (releasingthe brake) in order to blip the throttletrigger after starting.WARNINGDo not drop start. This method is verydangerous because you may losecontrol of the chain saw.There are two recommended methodsfor starting your chain saw.001BA113 KNKeep the handles clean and dry at alltimes; it is particularly important to keepthem free of moisture, pitch, oil, fuel mix,grease or resin in order for you tomaintain a firm grip and properly controlyour chain saw .With the first recommended method, thechain saw is started on the ground.Make sure the chain brake is engaged(see "Chain Brake" chapter in yourinstruction manual) and place the chainsaw on firm ground or other solid surfacein an open area. Maintain good balanceand secure footing.Grip the front handlebar of the saw firmlywith your left hand and press down. Forsaws with a rear handle level with theground, put the toe of your right foot intothe rear handle and press down. Withyour right hand pull out the starter gripslowly until you feel a definite resistanceand then give it a brisk, strong pull.The second recommended method forstarting your chain saw allows you tostart the saw without placing it on theground. Make sure the chain brake isengaged, grip the front handle of thechain saw firmly with your left hand.Keep your arm on the front handle in alocked (straight) position. Hold the rearhandle of the saw tightly between yourlegs just above the knees. Maintaingood balance and secure footing. Pullthe starting grip slowly with your righthand until you feel a definite resistanceand then give it a brisk, strong pull.WARNINGBe sure that the guide bar and saw chainare clear of you and all otherobstructions and objects, including theground. When the engine is started, theengine speed with the starting throttlelock engaged will be fast enough for theclutch to engage the sprocket and, if thechain brake is not activated, turn the sawchain. If the upper quadrant of the tip ofthe bar touches any object, it may causekickback to occur (see section onreactive forces). To reduce this risk,always engage the chain brake beforestarting. Never attempt to start the chainsaw when the guide bar is in a cut orkerf.MS 241 C-M

EnglishOnce the engine has started,immediately blip the throttle trigger,which should release the Master Controllever to the run position and allow theengine to slow down to idle.001BA087 LÄWARNINGWARNINGWhen you pull the starter grip, do notwrap the starter rope around your hand.Do not let the grip snap back, but guidethe starter rope to rewind it properly.Failure to follow this procedure mayresult in injury to your hand or fingersand may damage the startermechanism.Important AdjustmentsWARNINGTo reduce the risk of personal injuryfrom loss of control and / or contact withthe running cutting tool, do not use yourchain saw with incorrect idle adjustment.At correct idle speed, the cutting toolshould not move.If you cannot set the correct idle speed,have your STIHL dealer check yourchain saw and make proper adjustmentsand repairs.Holding and Controlling the Chain SawAlways hold the chain saw firmly withboth hands when the engine is running.Place your left hand on the front handlebar and your right hand on the rearhandle and throttle trigger.MS 241 C-MLeft-handers should follow theseinstructions too. Wrap your fingerstightly around the handles, keeping thehandles cradled between your thumband forefinger. With your hands in thisposition, you can best oppose andabsorb the push, pull and kickbackforces of your saw without losing control(see section on reactive forces).WARNINGTo reduce the risk of serious or fatal injury to theoperator or bystandersfrom loss of control,never use the chain sawwith one hand. It is moredifficult for you to controlreactive forces and toprevent the bar and chainfrom skating or bouncingalong the limb or log.Keep proper footing and balance at alltimes. Special care must be taken inslippery conditions (wet ground, snow)and in difficult, overgrown terrain. Beextremely cautious when working onslopes or uneven ground. Watch forhidden obstacles such as tree stumps,roots, rocks, holes and ditches to avoidstumbling. There is increased danger ofslipping on freshly debarked logs. Forbetter footing, clear away fallenbranches, scrub and cuttings. Useextreme caution when cutting small-sizebrush, branches and saplings becauseslender material may catch the sawchain and be whipped toward you or pullyou off balance.WARNINGTake extreme care in wet and freezingweather (rain, snow, ice). Put off thework when the weather is windy, stormyor rainfall is heavy.WARNINGTo reduce the risk of cut injuries, keephands and feet away from the cuttingtool. Never touch a moving cutting toolwith your hand or any other part of yourbody.9

EnglishNever put pressure on the chain sawwhen reaching the end of a cut. Thepressure may cause the bar and rotatingsaw chain to pop out of the cut or kerf, goout of control and strike the operator orsome other object. If the rotating sawchain strikes some other object, areactive force may cause the movingsaw chain to strike the operator.STIHL recommends that first-time usersshould cut logs on a sawhorse – see"Cutting small logs."001BA031 KNWorking ConditionsOperate and start your chain saw onlyoutdoors in a well-ventilated area.Operate it under good visibility anddaylight conditions only. Work carefully.WARNINGWARNINGTo reduce the risk of injury from loss ofcontrol, never work on a ladder or anyother insecure support. Never hold themachine above shoulder height. Do notoverreach.Your chain saw is a one-personmachine. Do not allow other persons inthe general work area, even whenstarting. Stop the engine immediately ifyou are approached.WARNING001BA082 KNEven though bystanders should be keptaway from the running chain saw, neverwork alone. Keep within calling distanceof others in case help is needed.Position the chain saw in such a waythat your body is clear of the cuttingattachment whenever the engine isrunning. Stand to the left of cut whilebucking.10WARNINGTo reduce the risk of injury to bystandersand damage to property, never let yourchain saw run unattended. When it is notin use (e. g. during a work break), shut itoff and make sure that unauthorizedpersons do not use it.WARNINGAs soon as the engine isrunning, this product generates toxic exhaustfumes containing chemicals, such as unburnedhydrocarbons (includingbenzene) and carbonmonoxide, that areknown to cause respiratory problems, cancer,birth defects, or otherreproductive harm. Someof the gases (e. g. carbonmonoxide) may be colorless and odorless. Toreduce the risk of seriousor fatal injury/illness frominhaling toxic fumes,never run the machineindoors or in poorly ventilated locations. If exhaustfumes become concentrated due to insufficientventilation, clear obstructions from work area topermit proper ventilationbefore proceeding and/ortake frequent breaks toallow fumes to dissipatebefore they becomeconcentrated.WARNINGOperate your chain saw so that itproduces a minimum of noise andemissions – do not run engineunnecessarily and accelerate the engineonly for cutting.MS 241 C-M

EnglishWARNINGUse of this chain saw (includingsharpening the saw chain) can alsogenerate dust, mist and fumescontaining chemicals that are known tocause respiratory problems, cancer,birth defects, or other reproductiveharm. If you are unfamiliar with the risksassociated with the particular dust, mistor fume at issue, consult your employer,governmental agencies such as OSHAand NIOSH and other sources onhazardous materials. California andsome other authorities, for instance,have published lists of substancesknown to cause cancer, reproductivetoxicity, etc.WARNINGInhalation of certain dusts, especiallyorganic dusts such as mold or pollen,can cause susceptible persons to havean allergic or asthmatic reaction.Substantial or repeated inhalation ofdust and other airborne contaminants, inparticular those with a smaller particlesize, may cause respiratory or otherillnesses. This includes wood dust,especially from hardwoods, but alsofrom some softwoods such as WesternRed Cedar. Control dust (such as sawdust), mists (such as oil mist from chainlubrication) and engine fumes at thesource where possible. Use good workpractices, such as always cutting with aproperly sharpened saw chain (whichproduces wood chips rather than finedust) and operating the unit so that thewind or operating process directs anydust raised by the chain saw away fromthe operator. Follow therecommendations ofMS 241 C-MEPA/OSHA/NIOSH and occupationaland trade associations with respect todust ("particulate matter"). When theinhalation of dust cannot besubstantially controlled, i.e., kept at ornear the ambient (background) level, theoperator and any bystanders shouldwear a respirator approved by NIOSH /MSHA for the type of dust encountered.WARNINGBreathing asbestos dust is dangerousand can cause severe or fatal injury,respiratory illness or cancer. The useand disposal of asbestos-containingproducts have been strictly regulated byOSHA and the Environmental ProtectionAgency. Do not use your chain saw tocut or disturb asbestos or asbestoscontaining products. If you have anyreason to believe that you might becutting asbestos, immediately stopcutting and contact your employer or

de seguridad dadas en el manual de instrucciones - el uso incorrecto puede causar lesiones graves o mortales. Instruction Manual Manual de instrucciones. Instruction Manual 1 - 59 Manual de instrucciones 60 - 122. Original Instruction Manual Printed on chlorine-free paper Printing inks contain vegetabl