Jonsered 2145 Manual
36
Operator´s manual Please read these instructions carefully and make sure you understand them before using the saw. EPA II EPA II EPA II
Transcript of Jonsered 2145 Manual
Operator s manualPlease read these instructions carefullyand make sure you understand thembefore using the saw.
EPA II
EPA II
EPA II
2 – English
KEY TO SYMBOLSSymbols
Switch off the engine by moving the stopswitch to the STOP position beforecarrying out any checks or maintenance.
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 operator´s hands must be usedto operate the chain saw. Please see page30 in your ”Chain saw operator's safetymanual”.
Never operate a chain saw holding it withone hand only. Please see page 30 in your”Chain saw operator's safety manual”.
Contact of the guide bar tip with any objectshould be avoided. Please see pages 12-21in your "Chain saw operator´s safetymanual".
Tip contact may cause the guide bar tomove suddenly upward and backward,which may cause serious injury. Please seepages 12-21 in your "Chain saw operator´ssafety manual".
Other symbols/decals on the machine refer to specialcertification requirements for certain markets.
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CONTENTSContents
Key to symbols ............................................................... 2Safety instructionsPersonal protective equipment ............................................ 4Chain saw safety equipment ................................................ 4
Inspecting, maintaining and servicing chain saw safetyequipment ............................................................................ 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 ................................................................................ 31Needle bearing maintenance ............................................ 31Adjustment of the oil pump ................................................ 31Cooling system .................................................................. 32Centrifugal cleaning ........................................................... 32Winter use ......................................................................... 32Daily maintenance ............................................................. 33Weekly maintenance ......................................................... 33Monthly maintenance ........................................................ 33
Technical dataCS 2141 ............................................................................ 34CS 2145 ............................................................................ 34CS 2150 ............................................................................ 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.Maintenance, replacement, or repair of the emissioncontrol devices and systems may be performed by anynonroad engine repair establishment or individual.
Jonsered has a policy of continuous product development andtherefore reserves the right to modify the design andappearance of products without prior notice.
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 result inserious personal injury or the death of theoperator or others.Your warranty may not cover damage orliability caused by the use of non-authorizedaccessories or replacement parts.
A chain saw is a dangerous tool if used care-lessly or incorrectly and can cause serious,even fatal injuries. It is very important that youread and understand these instructions.
You will find the following labels on your chain saw:
EPA I:
EPA II:
The Emissions Compliance Period reffered to on theEmissions Compliance label indicates the number ofoperating hours for which the engine has been shown tomeet Federal emission requirements.Category C = 50 hours, B = 125 hours, A = 300 hours.
Warning! The inside of muffler containchemicals that may be carcenogenic. Avoidcontact with these elements in the event ofdamaged muffler.
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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
• Right hand guard
• Vibration damping system
• Stop switch
• Muffler
• Cutting equipment (see”Cutting equipment”section).
SAFETY INSTRUCTIONS
• PROTECTIVE HELMET• HEARING PROTECTION• PROTECTIVE GLASSES
OR VISOR
• PROTECTIVE GLOVESWITH SAW PROTECTION
• PROTECTIVE TROUSERSWITH SAW PROTECTION
• BOOTS WITH SAWPROTECTION, STEELTOE-CAP AND NON-SLIPSOLE
Generally clothes should beclose-fitting without restrictingyour freedom of movement.
• ALWAYS HAVE A FIRSTAID KIT NEARBY
PERSONAL PROTECTIVE EQUIPMENT
MOST CHAIN SAW ACCIDENTS HAPPENWHEN THE CHAIN TOUCHES THE OPERA-TOR. You must wear approved safetyequipment whenever you use a chain saw.Personal safety equipment cannot eliminatethe risk of injury but it will reduce the degreeof injury if an accident does happen. Ask yourchain saw dealer for help in choosing the rightequipment.
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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 thekickback zone of the barnever touches any object.
SAFETY INSTRUCTIONS3a Starting
The chain brake should beactivated when starting.
b 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.
A
B
B
C
D
1 The chain brake (A) caneither be activatedmanually (by your lefthand) or automatically bythe inertia releasemechanism (a free-swinging pendulum). Onmost 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 drivesystem (D) (Clutch Drum).
2 The front hand guard isnot 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.
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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 baris 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 willbe 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).
SAFETY INSTRUCTIONS2 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 on”Assembly”) and if the bar andchain are properly servicedand maintained.(See section on ”Generalworkinginstructions”).
4 Right hand guardApart from protecting yourhand if the chain jumps orsnaps, the right hand guardstops branches and twigsfrom interfering with your gripon the rear handle.
A
B
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SAFETY INSTRUCTIONS
The muffler gets very hot in use and remainsso for a short time afterwards. DO NOTTOUCH THE MUFFLER IF IT IS HOT!
6 Stop switchUse the stop switch to switchoff the engine.
In areas with a hot, dryclimate there is a high risk offorest fires. These areas aresometimes controlled bylegislation and requirementsthat among other things themuffler must be equipped withan approved type of sparkarrestor mesh.
For mufflers it is veryimportant that you follow theinstructions on checking,maintaining and servicing yoursaw (see the section on”Inspecting, maintaining andservicing chain saw safetyequipment”).
The exhaust fumes from the engine are veryhot and may contain sparks which can start afire. Never start the saw indoors or nearcombustible material!
5 Vibration damping systemYour chain saw is equippedwith a vibration dampingsystem that is designed tominimise vibrations and makeoperation easier.
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 isblunt or faulty (wrong type orbadly sharpened, see sectionD) will increase the vibrationlevel.
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 vibrationdamping 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.
7 MufflerThe muffler is designed to keep noise levels to a minimum andto direct exhaust fumes away from the user.
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SAFETY INSTRUCTIONS3 Checking the inertia brake release
Hold the chain saw over astump or other firm object.Let go of the front handleso that the bar falls ontothe stump.
When the bar hits thestump the brake shouldbe applied.
4 Checking the brake trigger
Start the chain saw andplace it on firm ground.Make sure the chain doesnot touch the ground orany other object. Seeinstructions under theheading Start and stop.
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.
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 belowtake 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 as cracks.
B Move the front handguard forwards andback to make sure itruns freely and that it issecurely anchored tothe clutch cover.
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SAFETY INSTRUCTIONS4 Right hand guard
Check that the right handguard is not damaged andthat there are no visibledefects, such as cracks.
5 Vibration damping system
Regularly check thevibration damping unitsfor cracks or deformation
Make sure the vibrationdamping units aresecurely attached to theengine unit and handles.
6 Stop switch
Start the engine andmake sure the enginestops when you move thestop switch to the stopsetting.
2 Throttle lock
1 Make sure the throttlecontrol is locked at theidle setting when yourelease 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.
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 thecarburetor idleadjustment. See thesection on ”Maintenance”.
3 Chain catcher
Check that the CHAINCATCHER is notdamaged and is firmlyattached to the body ofthe saw.
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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. Ablocked mesh will causethe engine to overheatand may lead to seriousdamage.
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 data”section.
2 Keep the chain cuttingteeth properlysharpened! Follow ourinstructions and use therecommended filegauge. A damaged orbadly sharpened chainincreases the risk ofaccidents.
3 Maintain the correctraker 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 drivesprocket.
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 data”section 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 HOLEAND HOLE FOR CHAINTENSIONERThe bar must be matched tothe chain saw design.
Saw chain
• SAW CHAIN PITCH (=PITCH)(inches)
• 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 data”section 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 ”Technicaldata” section.
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 data” section for information aboutsharpening your saw chain.
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 cuttingteeth
To sharpen cutting teeth youwill need a ROUND FILE anda FILE GAUGE. See the”Technical data” section forinformation 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 bereplaced.
BA
15
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 data”section 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 rakerclearance.
• 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 INSTRUCTIONS D Setting the raker clearance
• Before setting the raker clearance the cutting teeth should benewly sharpened.We recommend that you adjust the raker clearance everythird 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
A slack chain may jump off and cause seriousor even fatal injury.
• 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 tightlyas possible, but not so tightthat you cannot pull it roundfreely by hand.
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1 Undo the bar nuts thathold the clutch cover andchain brake, using thecombination spanner.Then tighten the nuts byhand 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 itnot hang 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 what” section 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 the
chain 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 has a vegetable oil base. We recommend theuse of our own oil for both maximum chain life and tominimise environmental damage.
• 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• All our chain saws have an
automatic chain lubricationsystem. On some modelsthe oil flow is alsoadjustable.
• The sizes of the chain oiltank 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 thefuel 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 INSTRUCTIONS E Needle bearing maintenance
The clutch drum is equippedwith one of the followingchain sprockets:
• Spur sprocket (A) (the chainsprocket is welded on thedrum)
• Rim sprocket (B)(exchangeable)
Both versions have built-inneedle bearing at the driveshaft, whitch has to begreased regularly (once aweek).
NOTE! Use only high quality bearing grease or engine oil.
A
B
F Checking wear on cutting equipmentSaw 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.
G Chain drive sprocket
The clutch drum is fitted withone of the following drivesprockets:
A SPUR (integral drivesprocket)
B RIM (replaceable)
Regularly check thedegree of wear on thedrive sprocket. Replace ifwear is excessive.
Replace the drivesprocket whenever youreplace the chain.
min 4 mm (0,16")
B
A
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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 instructions” and ”Cutting equipment”).
• AVOID SITUATIONS WHERE THERE IS A RISK OFKICKBACK (see the section on ”Personalprotective equipment”).
• USE THE RECOMMENDED SAFETY EQUIPMENTAND CHECK ITS CONDITION (see section on”General working instructions”).
• CHECK THAT ALL SAFETY FUNCTIONS AREWORKING (see section on ”General workinginstructions” and ”General precautions”).
SAFETY INSTRUCTIONSHOW 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 takingcare 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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7 Take great care when youcut with the top edge ofthe bar, i.e. when cuttingfrom 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 backwardsthat 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.
8 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 equipment” and ”Technical data”.
The risk of kickback is increased if you usethe wrong cutting equipment or a chain that isnot sharpened correctly. The wrongcombination of bar and chain can increase therisk of kickback!
SAFETY INSTRUCTIONSGeneral rules1 If you understand what kickback is and how it happens then
you can reduce or eliminate the element of surprise. Bybeing prepared you reduce the risk. Kickback is usuallyquite mild, but it can sometimes be very sudden andviolent.
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 youkeep 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 baraccidentally touches abranch, nearby tree orsome other object.
4 Never use the saw aboveshoulder height and trynot to cut with the tip ofthe bar.
Never use the saw one-handed!
5 In order to keep control ofyour saw, alwaysmaintain a firm foothold.Never work on a ladder,in a tree or on any otherinsecure support.
6 Always use a fast cutting speed, i.e. full throttle.
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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.
• Make sure there is plenty ofventilation when refuellingor mixing fuel (2-strokemixture).
• Move the saw at least 3 mfrom the refuelling pointbefore starting it.
• Never start the chain saw: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 theFUEL 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 whereyou can dispose of waste fuel and chain oil at your localgasoline station.
8 Never use any accessories other than those recommendedin this manual. See the sections on ”Cutting equipment”and ”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!
SAFETY INSTRUCTIONSGENERAL 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 the”Technical data” section.
2 Never use a chain saw ifyou are tired, if you havedrunk alcohol, or if youare taking medication thataffects your vision, yourjudgement or your co-ordination.
3 Always wear suitable safety clothing. See the section on”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 on”Maintenance”.
6 STARTING
• Never start a chain sawunless the bar, chain and allcovers are fitted correctly.(See section on”Assembly”).
• Never start a chain sawindoors. Exhaust fumes canbe dangerous.
• Before starting the sawmake sure there are nopeople or animals nearbywho might be put at risk.
• The chain brake should beactivated when starting (seeinstructions under theheading Start and stop). Donot drop start. This methodis very dangerous becauseyou may lose control of thesaw (see instructions underthe heading Start and stop).
• Place the saw on theground and hold the rearhandle down with your rightfoot. Grasp the front handlefirmly using your left hand.Make sure the chain saw issteady and the chain is nottouching the ground. Thengrasp the starter handlewith your right hand and pullthe starter cord. Never wrapthe starter cord around yourhand.
Min. 3 m(10 ft)
English – 19
SAFETY INSTRUCTIONSGENERAL 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 thetelephone 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 cansuddenly 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 beforeleaving your chain saw forany length of time.
20 – English
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! Don’t 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 asyou 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 kickback” to 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?
English – 21
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 distanceThe 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.
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 hityou during felling.
1 2
3
During critical felling operations, hearingprotectors should be lifted immediately whensawing is completed so that sounds andwarning signals can be heard.
22 – English
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 assoon 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 HINGE.
The HINGE act as hinges thatcontrol the felling direction ofthe falling tree.
All control over the fellingdirection is lost if the HINGE istoo narrow or if the directionalcut and felling cut are badlyplaced.
When the felling cut anddirectional cut are completethe tree should start to fallunder its own weight or withthe aid of a FELLING WEDGEor BREAKING BAR.
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 retreatshould 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 cutsmeet is called theDIRECTIONAL CUT LINE.This line should be perfectlyhorizontal and at right angles(90°) to the chosen fellingdirection.
English – 23
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 data” to 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.
UNLESS YOU HAVE SPECIAL TRAINING WEADVISE YOU NOT TO FELL TREES WITH ADIAMETER LARGER THAN THE BAR LENGTHOF YOUR SAW!
E Limbing
MOST KICKBACK ACCIDENTS HAPPENDURING LIMBING!PAY CLOSE ATTENTIONTO THE POSITION OF THE KICKBACK ZONEOF THE BAR WHEN YOU ARE LIMBINGBRANCHES THAT ARE IN TENSION!
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 instructions” point 2 ”Basiccutting technique”.
SAFETY INSTRUCTIONS4 Freeing a tree that has fallen badly = high
accident risk
A Freeing a “Trapped tree”The safest method is to use a winch.A Tractor-mounted B Portable
B Cutting trees and branches that are in tensionPreparations:
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 in tension!
24 – English
WHAT IS WHAT?
What is what?1. Cylinder cover.
2. Front handle.
3. Front hand guard.
4. Starter cover.
5. Chain oil tank.
6. Starter handle.
7. Adjuster screw, carburetor.
8. Choke control/Start throttle lock.
9. Rear handle.
10. Stop switch. Ignition on/off switch.
11. Fuel tank.
12. Muffler.
13. Bar tip sprocket.
14. Saw chain.
15. Saw bar.
16. Bumper.
17. Chain catcher. Catches chain if it jumps or breaks.
18. Clutch cover.
19. Right hand guard. Protects right hand if chain breaks orjumps.
20. Throttle control.
21. Throttle lock. Prevents accidental operation of throttlecontrol.
22. Decompression valve (CS 2145, CS 2150).
23. Combination spanner.
24. Chain tensioning screw.
25. Operator´s manual.
26. Bar guard.
27. Oil pump adjustment screw.
English – 25
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. Takeoff the transportation ring (A).
ASSEMBLY
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 canstill 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.
!
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.
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 screwclockwise. The chain shouldbe tensioned until it fits snuglyon the underside of the bar.
26 – English
FUEL HANDLINGFuelmix
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.
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 continuoushigh revs a higher octanerating is recommended.
Two-stroke oil• For the best results use JONSERED 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.
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 theentire amount of oil. Mix(shake) the fuel mixture.Add the remaining amountof gasoline.
• Mix (shake) the fuel mixturethoroughly before filling thesaw’s fuel tank.
• Do not mix more than max.one month’s supply of fuel.
• If the saw is not used forsome time the fuel tankshould be emptied andcleaned.
• 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.
English – 27
!
FUEL HANDLINGFuelling
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 that
possible overpressure is slowly released.• Tighten the fuel cap carefully after fuelling.• Always move the saw from the fuelling area before
starting.
Min 3 m(10ft)
Chain oil• The chain lubrication
system is automatic. Alwaysuse special chain oil withgood adhesivecharacteristics.
• In countries where nospecial 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 becometoo 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 thefuel 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.
28 – English
!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.
START AND STOP
StopThe engine is stopped byswitching off the ignition.
H
A
H
H
StartGrip the front handle with yourleft hand and hold the sawdown by putting your right footin the rear handle. Pull thestarter handle with your righthand and pull out the startercord slowly until the starterpawls engage. Then pullsharply. Never wrap thestarter cord around your hand.
Push in the choke controlimmediately when the enginefire and make repeatedstarting attemps. Immediatelypress and release the throttlewhen the engine starts. Thatwill disengage the throttlelatch.
As the chain brake is stillactivated the engine mustreturn to idling speed as soonas possible by disengagingthe throttle latch in order toavoid unnecessary wear onthe clutch assembly.
CAUTION! Do not release thestarter handle from fully pulledout position as this can causedamage on the saw.
Pull the front hand guardtowards the front handle. Thechain brake is nowdisengaged. Your saw is nowready for use.
Cold engineSTARTING:The chain brake should beactivated when starting thechain saw. Activate the chainbrake by pushing the fronthand guard forwards.
IGNITION; CHOKE:Set the choke control in chokeposition. The stop contact willautomatically be set to startposition.
FAST IDLE:Combined choke/fast idle isreceived when the choke ismoved to choke position.
If the saw is fitted with adecompression valve (A):Press the valve to reduce thepressure in the cylinder andmake starting easier. Alwaysuse the decompression valvewhen starting the saw. Oncethe saw has started the valvewill automatically return to itsoriginal setting.
Warm engineUse the same procedure asfor starting cold engine butwithout choke. Fast idle isrecived by first set the chokecontrol in choke position, andthen back again.
English – 29
MAINTENANCECarburetorYour Jonsered product has been designed and manufactured tospecifications 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 optimumoperating 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 engine’s optimal outputthe setting must be correct.
• The satisfactory operation of a catalytic converterdepends, among other factors, on the correct adjustmentof the carburettor. Follow carefully the instructions below,using a tachometer to check engine speed.
• The setting of the carburetor means that the engine is adaptedto local conditions, for example, the climate, altitude, fuel andthe 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 should be kept during the machine‘s firstworking hours. Thereafter the carburetor should be finely adjusted.Fine adjustment 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: 2 700 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 T counter-clockwise until the chainstops.
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 the saw.A too lean adjusted high speedneedle H (high speed needle Hturned too much clockwise)gives overrevs and damagesthe engine. Do not allow theengine to run at full speed formore than 10 seconds. Turnthe high speed needle Hcounter-clockwise until the stop.If the engine runs roughly, turnthe high speed needle slowlythe minimum amount clockwiseuntil the engine runs smoothly.The high speed needle H is correctly set when the saw ”4-cycles” alittle. If the saw ”whistles” the setting is too lean. If there is too muchexhaust gas at the same time as the saw ”4-cycles” much, thesetting is too rich. Turn the high speed needle H until the settingsounds correct. NOTE! For optimum setting of the carburetor,contact a qualified servicing dealer who has a revolutioncounter at his disposal.
Correctly adjusted carburetorA correctly adjusted carburetor means that the saw accelerateswithout hesitation and the saw preferably 4-cycles a little at maxspeed. Furthermore, the chain must not rotate at idling. A toolean adjusted low speed needle L may cause starting difficultiesand bad acceleration. A too lean adjusted high speed needle Hgives 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.
H
Conditions• Before any adjustments are made the air filter should be clean
and the cylinder cover fitted. Adjusting the carburetor while adirty air filter is in use will result in a leaner mixture when the filteris finally cleaned. This can give rise to serious engine damage.
• Carefully turn the L needle to the mid point and H needlecounter-clockwise against the stop.
• Do not attempt to adjust the needles beyond the stops asdamage can occur.
• Now start the saw according to the starting instructions and run itwarm 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 away fromyou and so that the bar and chain do not come into contact withthe 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.
!
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
HL
T
! WARNING! The catalytic converter mufflergets very hot during and after use. This alsoapplies during idling. Be aware of the firehazard, especially when handling the saw nearflammable substances or vapours.
30 – English
Starter device
WARNING!
• When the recoil spring is assembled in the starterhousing, it is in tensioned position and can whentreated carelessly, pop out and cause injuries.
• Always be careful, when changing the recoil spring orthe starter cord. Always wear safety goggles for eyeprotection.
!
MAINTENANCE
Changing a broken or wornstarter 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 knoton the starter cord.
Tensioning the recoil spring
• Lift the starter cord up in thenotch on the starter pulleyand turn the starter pulley 2turns clockwise.
NOTE! Check that thestarter pulley can be turnedat least half a turn, when thestarter cord is entirely pulledout.
Starter device assembly
• Assemble the starterdevice, by pulling the startercord out first, then place thestarter against thecrankcase. Then slowlyrelease the starter cord sothat the pulley engages withthe pawls.
• Assemble and tighten thescrews, which hold thestarter.
Changing the broken recoil spring
• Lift the starter pulley (see"Changing a broken or wornstarter cord"). Bear in mindthat the return spring sitsunder tension in a cassette.
• Dismantle the cassette withthe return spring from thestarter.
• Lubricate the recoil springwith thin oil. Assemble thecassette with return springin the starter. Fit the starterpulley and tension thereturn spring.
English – 31
Muffler
The muffler is designed inorder to reduce the noise leveland to direct the exhaustgases away from the operator.The exhaust gases are hotand can contain sparks, whichmay cause fire if directedagainst dry and combustiblematerial. Some mufflers areequipped with a specialscreen.
MAINTENANCE
Spark plug
The spark plug condition is influenced by:• An incorrect carburetor setting.• Wrong fuel mixture (too much oil in the gasoline).• A dirty air filter.These factors cause deposits on the spark plug electrodes,which may result in malfunction and starting difficulties.
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 (0,020"). The sparkplug should be replaced afterabout a month in operation orearlier if the electrodes arebadly eroded.
IMPORTANT! Always use therecommended spark plugtype. An incorrect spark plugcan severely damage thepiston/cylinder.
If your saw has this type of muffler, you should clean the screenat least once a week. This is done with a wire brush.
CAUTION! The screen must be replaced, if damaged. The sawwill be overheated, if the screen is clogged. This results indamage on the cylinder and the piston. Never use a saw with aclogged or defective muffler.
0,5 mm
Air 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 byremoving the cylinder coverand unscrew the filter.When reassembling, makesure that the filter is tightagainst the filter holder.Clean the filter by brushingor shaking it.
• A more thorough cleaning ofthe filter is obtained bywashing it in water andsoap.
An air filter, which is used forsome time, cannot be cleanedcompletely. Therefore it mustbe replaced by a new one,with regular intervals.IMPORTANT! A damaged airfilter must always bereplaced.
A Jonsered chain saw can be equipped with different types ofairfilter according to working and weather conditions, season etc.
Needle bearing maintenance
The clutch drum is equippedwith one of the following chainsprockets:
• Spur sprocket (A) (the chainsprocket is welded on thedrum)
• Rim sprocket (B)(exchangeable)
Both versions have built-inneedle bearing at the driveshaft, whitch has to begreased regularly (once aweek).
NOTE! Use only highquality bearing grease orengine oil.
A
B
32 – English
MAINTENANCE
Cooling system
To obtain the lowest possible running temperature the saw isequipped with a cooling system.
The cooling systemconsists of:
1. Air intake on the starterunit.
2. Air guide plate.3. Fan blades on the
flywheel.4. Cooling fins on the
cylinder.5. Cylinder cowling
(supplies cold air overthe 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.NOTE! The cooling system of chain saws that are fitted witha catalytic converter must be cleaned daily. This isparticularly important on saws with catalytic converters,because the higher working temperature of the exhaustdemands efficient cooling of the engine and the catalyticconverter unit.
Centrifugal cleaningCentrifugal cleaning meansthe following:All air to the carburetor iscarried through the starter.Dirt and dust is centrifugedaway by the cooling fan.
IMPORTANT! In order tokeep the function of thecentrifugal cleaning, acontinous maintenance andcare must be made.
• Clean the air intake to thestarter, the fan wings of theflywheel, the space aroundthe flywheel, inlet pipe andcarburetor space.
Winter useDuring winter time, snow and cold weather can cause runningproblems, such as:• Too low engine temperature.• Icing of the air filter and freezing of the carburetor.
Therefore some special measures are required:• Partly reduce the air inlet of the starter and by doing that
increase the engine temperature.• Preheat the intake air to the carburetor by using the heat from
the cylinder.
Temperature 0°C (32°F) orcolder:Make a hole or remove theplug so that the preheated airfrom the cylinder can passinto the carburetor areapreventing for instance icingon the air filter.
For temperatures below -5°C(23°F) and/or in snowconditions there is also:• a special cover (A) for the
starter housing,• a winter plug (B) for the air
intake that is fitted asshown.
These reduce the air flow andprevent large amounts of snowfrom being sucked into thecarburetor chamber. NOTE!When the winter plug is fittedthe winter flap must be open.
IMPORTANT! If the temperature rises above -5°C (23°F) or 0°C(32°F) respectively the saw MUST be restored to its normalsettings. Otherwise there is a risk of overheating, which cancause severe engine damage.
IMPORTANT! Any maintenance other than that described in thismanual must be carried out by your servicing dealer.
The oil pump is adjustable.Adjustments are made byturning the screw using ascrewdriver or combinationspanner. The saw is suppliedfrom the factory with the screwset to position 2. Turning thescrew clockwise will reducethe oil flow and turning thescrew anti-clockwise willincrease the oil flow.
Adjustment of the oil pump
–+12
3
WARNING! The engine must not be runningwhen making adjustments.!
Recommended settings:Bar 13"-15": Position 1Bar 15"-18": Position 2Bar 18"-20": Position 3
1
2
5
4
3
H
H
H
English – 33
Below you will find some general maintenance instructions.If you have more questions, contact your servicing dealer.
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 0,5 mm(0,020 inch).
5. Check the starter and therecoil spring. Clean thefins on the flywheel.
6. Clean the cooling fins onthe cylinder.
7. Clean or change thescreen in the muffler.
8. Clean the carburetor bodyand air box.
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. Clean the inside of thefuel tank.
6. Clean the inside of theoil tank.
7. Check all cables andconnections.
8. Change the spark plug.
9. Change the air filter.
MAINTENANCE
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 isundamaged. 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, if the bar hasa sprocket tip, this shouldbe lubricated.
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.
10. Check the cooling systemof saw fitted with catalyticconverter.
1
3
0,5 mm4
5
6
7
8
2
3
4
7
0,5 mm8
1
2
5
6
9
9
5
3
6
87
2
1
2
5
4
3
1
4
10
34 – English
EngineCylinder volume,cu.in/cm3
Cylinder bore,inch/mmStroke, inch/mmIdle speed, rpmPower, kW/ rpm
Ignition systemManufactureType of ignitionsystemSpark plug
Electrode gap,inch/mm
Fuel andlubrication systemManufacturerCarburetor typeFuel capacity, USpint/litreOil pump capacity at9000 rpm, ml/minOil capacity, USpint/litreType of oil pump
WeightWithout bar andchain, Lbs/kg
Chain/barStandard bar length,inches/cmRecommended barlengths, inches/cmUsable cutting length,inches/cm
Chain speed at max.power, m/secPitch, inch/mmThickness of drivelink, inch/mm
Number of teeth ondrive sprocket
TECHNICAL DATACS 2141
2,5/40,8
1,57/40,01,28/32,52 7002,0/ 9 000
SEM
CDNGK BPMR 7AChampionRCJ7Y
0,020/0,5
ZamaC3-EL18
1,06/0,50
9
0,59/0,28Automatic
10,8/4,9
13"/33
13-18"/33-45
12-17"/31-43
17,30,325"/8,25
0,050"/1,30,058"/1,50,063"/1,6
7
Recommended original and replacementbar and chain combinations
Following is a list of recommended cutting equipment for theJonsered chain saw model CS 2141, CS 2145, CS 2150. Thecombinations of powerhead, bar and chain have beeninvestigated in accordance with the kickback and vibrationrequirements of ANSI B 175.1 – 2000.The guide bar nose radius is determined by either the maximumnumber of teeth in the nose sprocket or the correspondingmaximum nose radius of a solid bar.
The following list is the chain saw manufacturersrecommendations. There may be other combinations available,which will also achieve kickback reduction.
As we are listing the maximum guide bar nose radius, you mayuse a guide bar with smaller nose radius than in our list. Forguide bars of the same length, all sprocket-nose guide bars of thesame pitch and having the same number of of sprocket teeth maybe considered to have equivalent kickback energy. A hard nosebar having the same length and nose radius as a sprocket-nosebar may be considered to have equivalent or less kickbackenergy than the sprocket-nose bar.
Low kickback saw chain is a chain which has only met thekickback performance requirements of ANSI B 175.1 safetyrequirements for gasoline-powered chain saws when tested onthe 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 saw chains"which are available at your dealer.
Guide bar Saw chain
Length Pitch Max noseinch inch radius
13 0,325" 10T Jonsered S30 or Oregon 95VP15 0,325" 10T16 0,325" 10T18 0,325" 10T
13 0,325" 10T Jonsered S25 or Oregon 21BP15 0,325" 10T16 0,325" 10T18 0,325" 10T
13 0,325" 10T Total/Sabre 528PS15 0,325" 10T16 0,325" 10T18 0,325" 10T
15 0,325" 10T Total 528NK, Total 528NKD16 0,325" 10T Sabre 528P (Single or Dual18 0,325" 10T Raker)
Note: For the chains above you are free to choose between0,050", 0,058" and 0,063" gauge drive link for the correspondingbar, see table below.
0,050" (1,3 mm) S30 / 95VP 20BP 520PS
0,058" (1,5 mm) – S25 / 21BP 528PS
0,063" (1,6 mm) – 22BP 523PS
CS 2145
2,7/45,0
1,65/42,01,28/32,52 7002,2/ 9 000
SEM
CDNGK BPMR 7AChampionRCJ7Y
0,020/0,5
ZamaC3-EL18
1,06/0,50
9
0,59/0,28Automatic
10,8/4,9
13"/33
13-18"/33-45
12-17"/31-43
17,30,325"/8,25
0,050"/1,30,058"/1,50,063"/1,6
7
CS 2150
3,2/51,7
1,77/45,01,28/32,52 7002,3/ 9 000
SEM
CDNGK BPMR 7AChampionRCJ7Y
0,020/0,5
ZamaC3-EL18
1,06/0,50
5-10
0,59/0,28Automatic
10,8/4,9
13"/33
13-18"/33-45
12-17"/31-43
17,30,325"/8,25
0,050"/1,30,058"/1,50,063"/1,6
7
´*xvo¶5Q¨
English – 35
EMISSION CONTROL WARRANTY STATEMENT
WHAT IS COVEREDREPAIR OR REPLACEMENT OF PARTSRepair or replacement of any warranted part will be performedat no charge to the owner at an approved Jonsered servicingdealer. If you have any questions regarding your warrantyrights and responsibilities, you should contact your nearestauthorized servicing dealer or call Jonsered at Sweden+ 46 36 14 65 00.WARRANTY PERIODAny warranted part which is not scheduled for replacement asrequired maintenance, or which is scheduled only for regularinspection to the effect of ”repair or replace as necessary”shall be warranted for 2 years. Any warranted part which isscheduled for replacement as required maintenance shall bewarranted for the period of time up to the first scheduledreplacement point for that part.DIAGNOSISThe owner shall not be charged for diagnostic labor whichleads to the determination that a warranted part is defective, if the diagnostic work is performed at an approved Jonseredservicing dealer.CONSEQUENTIAL DAMAGESJonsered may be liable for damages to other enginecomponents caused by the failure of a warranted part stillunder warranty.
WHAT IS NOT COVEREDAll failures caused by abuse, neglect or improper maintenanceare not covered.ADD -ON OR MODIFIED PARTSThe use of add-on or modified parts can be grounds fordisallowing a warranty claim. Jonsered is not liable to coverfailures of warranted parts caused by the use of add-on ormodified parts.
HOW TO FILE A CLAIMIf you have any questions regarding your warranty rightsand responsibilities, you should contact your nearestauthorized servicing dealer or call Jonsered at Sweden+ 46 36 14 65 00.
WHERE TO GET WARRANTY SERVICEWarranty services or repairs shall be provided at all Jonseredauthorized servicing dealers.
MAINTENANCE, REPLACEMENT ANDREPAIR OF EMISSION-RELATED PARTSAny Jonsered approved replacement part used in theperformance of any warranty maintenance or repairs onemission-related parts, will be provided without charge to theowner if the part is under warranty.
EMISSION CONTROL WARRANTY PARTS LIST1. Carburetor and internal parts2. Intake pipe, airfilter holder and carburetor bolts.3. Airfilter and fuelfilter covered up to maintainance schedule.4. Ignition System
a) Spark Plug, covered up to maintenance scheduleb) Ignition Module
5. Muffler with catalytic converter.
MAINTENANCE STATEMENTThe owner is responsible for the performance of all requiredmaintenance, as defined in the operator’s manual.
YOUR WARRANTY RIGHTS ANDOBLIGATIONS
The EPA (The US Environmental Protection Agency),Environment Canada and Jonsered are pleased to explain theemissions control system warranty on your 2001 and latersmall nonroad engine. In U.S. and Canada, new smallnonroad engines must be designed, built and equipped tomeet the federal stringent anti-smog standards.Jonsered must warrant the emission control system on yoursmall nonroad engine for the periods of time listed belowprovided there has been no abuse, neglect or impropermaintenance of your unit. Your emission control systemincludes Parts such as the carburetor and the ignition system.Where a warrantable condition exists, Jonsered will repairyour small nonroad engine at no cost to you. Expensescovered under warranty include diagnosis, parts and labor.
MANUFACTURER’S WARRANTYCOVERAGEThe 2001 and later small nonroad engines are warranted fortwo years. If any emission related part on your engine (aslisted above) is defective, the part will be repaired or replacedby Jonsered.
OWNER’S WARRANTY RESPONSIBILITIESAs the small nonroad engine owner, you are responsible forthe performance of the required maintenance listed in yourOperator’s Manual. Jonsered recommends that you retain allreceipts covering maintenance on your small nonroad engine,but Jonsered cannot deny warranty solely for the lack ofreceipts or for your failure to ensure the performance of allscheduled maintenance.As the small nonroad engine owner, you should, however, beaware that Jonsered may deny you warranty coverage if yoursmall nonroad engine or a part of it has failed due to abuse,neglect, improper maintenance, unapproved modifications orthe use of parts not made or approved by the originalequipment manufacturer.You are responsible for presenting your small nonroad engineto a Jonsered authorized servicing dealer as soon as aproblem exists.The warranty repairs should be completed in a reasonableamount of time, not to exceed 30 days.If you have any questions regarding your warranty rights andresponsibilities, you should contact your nearest authorizedservicing dealer or call Jonsered, at Sweden + 46 36 14 65 00.
WARRANTY COMMENCEMENT DATEThe warranty period begins on the date small nonroad engineis delivered.
LENGTH OF COVERAGEJonsered warrants to the initial owner and each subsequentpurchaser that the engine is free from defects in materials andworkmanship which cause the failure of a warranted part for aperiod of two years.
´*xvo¶5Q¨2002W40
108 88 67-95
