Husqvarna 333R-Series Trimmer User Manual
Contents
1. When fitting tighten the nut in the opposite direction to the direction of rotation of the cutting attachment To remove it undo the nut in the same direction as the cutting attachment rotates CAUTION The nut has a left hand thread Tighten the nut using the socket spanner The nylon lining inside the locking nut must not be so worn that you can turn it by hand The lining should offer a resistance of at least 1 5 Nm The nut should be replaced after it has been put on approx 10 times English 9 GENERAL SAFETY PRECAUTIONS Cutting equipment This section describes how to choose and maintain your cutting equipment in order to e Reduce the risk of blade thrust e Obtain maximum cutting performance e Extend the life of cutting equipment IMPORTANT Only use cutting attachments with the guards we recommend See the chapter on Technical data Refer to the instructions for the cutting attachment to check the correct way to load the cord and the correct cord diameter Keep the teeth of the blade correctly sharpened Follow our recommendations Also refer to the instructions on the blade packaging Maintain the correct blade setting Follow our instructions and use the recommended file gauge WARNING Always stop the engine before doing any work on the cutting attachment This continues to rotate even after the throttle has been released Ensure that the cutting attachment has stopped completely and discon2. Place the blade D support cup E and support flange F on the output shaft Fit the nut G The nut must be tightened to a torque of 35 50 Nm 3 5 5 kpm Use the socket spanner in the tool kit Hold the shaft of the spanner as close to the blade guard as possible To tighten the nut turn the spanner in the opposite direction to the direction of rotation Caution left hand thread Fitting the blade guard and saw blade Remove the mounting plate H Fit the adapter 1 and bracket J with the two screws K as shown Fit the blade guard A to the adapter using the 4 screws L as shown CAUTIONI Use the recommended blade guard See the Technical data section Fit the drive disc B on the output shaft Turn the blade shaft until one of the holes in the drive disc aligns with the corresponding hole in the gear housing Insert the locking pin C in the hole to lock the shatt Place the blade D and support flange F on the output shaft Fit the nut G The nut must be tightened to a torque of 35 50 Nm 3 5 5 kpm Use the socket spanner in the tool kit Hold the shaft of the spanner as close to the blade guard as possible To tighten the nut turn the spanner in the opposite direction to the direction of rotation Caution left hand thread English 13 ASSEMBLY e When loosening and tightening the saw blade nut there is a risk of injury from the teeth of the saw blade You should therefore a
3. e Check that the trimmer head and trimmer guard are not damaged or cracked Replace the trimmer head or trimmer guard if they have been exposed to impact or are cracked WARNING When the engine is started with the choke in either the choke or start throttle positions the cutting attachment will start to rotate immediately Hold the body of the machine on the ground using your left hand CAUTION Not with your foot Grip the starter handle slowly pull out the cord with your right hand until you feel some resistance the starter pawls grip now quickly and powerfully pull the cord Never twist the starter cord around your hand Repeat pulling the cord until the engine starts When the engine starts return choke control to run position and apply e Never use the machine without a guard nor with a full throttle the throttle will automatically disengage from the defective guard start setting e All covers must be correctly fitted and undamaged before you start the machine 18 English STARTING AND STOPPING CAUTION Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended This can damage the machine CAUTION Do not put any part of your body in marked area Contact can result in burns to the skin or electrical shock if the spark plug cap has been damaged Always use gloves Do not use a machine with damaged spark plug cap For throttle handles with
4. Forestry clearing 5 If you need to lower the suspension hook for trimming for example move the suspension strap A to the lower mounting point on the backplate 6 The elastic strap B can be tightened to transfer more load from the shoulder straps to the hip strap Correct balance 1 Forestry clearing The machine is balanced by moving the suspension ring on the machine forwards or backwards On some models the suspension ring is fixed however this will then have a number of holes for the support hook The machine is correctly balanced when it freely hangs horizontally from the support hook In this way the risk of hitting stones is reduced if you need to release the handlebar 2 Grass clearing Let the blade balance at a comfortable cutting height i e close to the ground English 15 FUEL HANDLING Fuel safety Never start the machine 1 If you have spilt fuel on it Wipe off the spillage and allow remaining fuel to evaporate 2 If you have spilt fuel on yourself or your clothes change your clothes Wash any part of your body that has come in contact with fuel Use soap and water 3 If the machine is leaking fuel Check regularly for leaks from the fuel cap and fuel lines Transport and storage e Store and transport the machine and fuel so that there is no risk of any leakage or fumes coming into contact with sparks or naked flames for example from electrical machinery electric motors e
5. under the heading Filing the blade increases the level of vibration The machine s vibration damping svstem reduces the transfer of vibration between the engine unit cutting equipment and the machine s handle unit 8 English Regularly check the vibration damping units for cracks or deformation Check thatthe vibration damping element is undamaged and securely attached WARNINGI Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation Contact your doctor if you experience symptoms of overexposure to vibration Such symptoms include numbness loss of feeling tingling pricking pain loss of strength changes in skin colour or condition These symptoms normally appear in the fingers hands or wrists The risk increases at low temperatures Quick release There is an easily accessible quick release fitted at the front as a safety precaution in case the engine catches fire or in any other situation that requires you to free yourself from the machine and harness See instructions under the heading Adjusting the harness and clearing saw Certain harnesses also have a quick release fitted to the support hook Check that the harness straps are correctiv positioned Once the harness and machine have been adjusted check that the harness quick release works correctiv Muffler The muffler is designed to keep noise levels to a minimum and to direct exhaust
6. A clearing saw brushcutter or trimmer can be dangerous if used incorrectly or carelessly and can cause serious or fatal injury to the operator or others It is extremely important that you read and understand the contents of this operator s manual English 3 INTRODUCTION Dear Customer Congratulations on your choice to buy a Husqvarna product Husqvarna is based on a tradition that dates back to 1689 when the Swedish King Charles XI ordered the construction of a factory on the banks of the Husqvarna River for production of muskets The location was logical since water power was harnessed from the Huskvarna River to create the water powered plant During the more than 300 years of beeing the Husqvarna factory has produced a lot of different products from wood stoves to modern kitchen appliances sewing machines bicycles motorcycles etc In 1956 the first motor driven lawn mowers appeared followed by chain saws in 1959 and it is within this area Husqvarna is working today Today Husqvarna is one of the leading manufacturers in the world of forest and garden products with quality as our highest priority The business concept is to develop manufacture and market motor driven products for forestry and gardening as well as for building and construction industry Husqvarna s aim is also to be in the front edge according to ergonomics usability security and environmental protection That is the reason why we have developed many
7. E 6 Auto 55 2 7 mm 9 0 m 3 0 mm 7 5 m 3 3 mm 6 0 m Trimmy SII LLI Trimmy SII 1150212 26 PANAM 200000
8. a start throttle lock Set the throttle to the start position by first pressing the throttle lock and the throttle trigger then pressing the start throttle button A Then release the throttle lock and the throttle trigger followed by the start throttle button The throttle function is now activated To return the engine to idle press the throttle lock and throttle trigger again PART THROTTLE FUNCTION RX It is possible to set the engine for part throttle operation using the dial on the side of the throttle handle Turn the dial up to decrease the part throttle rpm Turn the dial down to increase the part throttle rpm When you have set the part throttle rpm you will feel increased resistance when you press the throttle trigger This increased resistance makes it easier to maintain a constant part throttle setting To obtain full throttle press the throttle trigger a little harder so that it goes past the part throttle setting As soon as you release the throttle trigger the engine will return to idle The part throttle function does not lock the engine at a given rpm it is simply a brake that makes it easier to maintain the engine at a given rpm Stopping Stop the engine by switching off the ignition CAUTION The stop switch automatically returns to the start position In order to prevent unintentional starting the spark plug cap must be removed from the spark plug when assembling checking and or performing maintena
9. as the engine stops HELMET A helmet should be worn if the trees being cleared are taller than 2 m HEARING PROTECTION Wear hearing protection that provides adequate noise reduction EYE PROTECTION Always wear approved eye protection If you use a visor then you must also wear approved protective goggles Approved protective goggles must comply with standard ANSI Z87 1 in the USA or EN 166 in EU countries GLOVES Gloves should be worn when necessary e g when fitting cutting attachments GENERAL SAFETY PRECAUTIONS CLOTHING Wear clothes made of a strong fabric and avoid loose clothing that can catch on twigs and branches Always wear heavy long pants Do not wear jewellerv shorts sandals or go barefoot Secure hair so it is above shoulder level FIRST AID KIT Alwavs have a first aid kit nearbv A Machine s safetv equipment This section describes the machine s safetv equipment its purpose and how checks and maintenance should be carried out to ensure that it operates correctiv See the What is what section to locate where this equipment is positioned on your machine The life span of the machine can be reduced and the risk of accidents can increase if machine maintenance is not carried out correctly and if service and or repairs are not carried out professionally If you need further information please contact your nearest service workshop IMPORTANT All servicing and repair w
10. cutting attachment and guard kg Noise emissions see note 1 Sound power level measured dB A Sound power level guaranteed Lwa dB A Noise levels see note 2 Equivalent noise pressure level at the operator s ear measured according to EN ISO 11806 and ISO 7917 dB A min max Vibration levels Vibration levels at handles measured according to EN ISO 11806 and ISO 7916 m s At idle left right handles min At idle left right handles max At max speed left right handles min At max speed left right handles max 333R 34 6 38 0 30 5 2900 11500 8220 1 6 8400 No Yes Walbro MB Champion RCJ 6Y 0 5 Zama C1Q 0 6 6 1 111 114 96 102 3 0 2 8 3 2 3 1 2 9 3 4 4 2 5 1 335RX 34 6 38 0 30 5 2900 11500 8220 1 6 8400 Ves Ves Walbro MB Champion RCJ 6Y 0 5 Zama C1Q 0 6 6 2 111 114 95 102 2 0 1 9 2 12 3 2 4 1 8 Elle Note 1 Noise emissions in the environment measured as sound power Lwa in conformity with EC directive 2000 14 EC Note 2 Equivalent sound pressure level is calculated as the time weighted energy total for sound pressure levels under various working conditions with the following time distribution 1 2 idling and 1 2 max speed NOTE The noise pressure level at operator s ear and vibrations on the handles are measured with all the approved cutting attachments for the machine The table indicates the lowest and highest values English 2
11. different features to provide our products within these areas We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very long time to come The purchase of one of our products gives you access to professional help with repairs and service whenever this may be necessary If the retailer who sells your machine is not one of our authorised dealers ask for the address of your nearest service workshop It is our wish that you will be satisfied with your product and that it will be your companion for a long time Think of this operator s manual as a valuable document By following its content using service maintenance etc the life span and the second hand value of the machine can be extended If you will sell this machine make sure that the buver will get the operator s manual Thank you for using a Husqvarna product Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice 4 English WHAT ISWHAT What is what on the clearing saw 1 Trimmer head 18 Locking nut 2 Grease filler cap bevel gear 19 Support flange 3 Bevel gear 20 Support cup 4 Cutting attachment guard 21 Drive disc 5 Shaft 22 Blade 6 Handlebar 23 Socket spanner 7 Throttle control 24 Operator s manual 8 Stop switch 25 Transport guard 9 Throttle lock 26 Allen key 10 Suspension ring 27 Locking
12. fumes awav from the user A muffler fitted with a catalvtic converter is also designed to reduce harmful exhaust gases GENERAL SAFETY PRECAUTIONS In countries that have a warm and dry climate there is a significant risk of fire We therefore fit certain mufflers with a spark arrestor mesh Check whether the muffler on your machine is fitted with this kind of mesh For mufflers it is very important that you follow the instructions on checking maintaining and servicing your machine Never use a machine that has a faulty muffler Regularly check that the muffler is securely attached to the machine If the muffler on your machine is fitted with a spark arrestor mesh this must be cleaned regularly A blocked mesh will cause the engine to overheat and may lead to serious damage WARNINGI Mufflers fitted with catalytic converters get very hot during use and remain so for some time after stopping This also applies at idle speed Contact can result in burns to the skin Remember the risk of fire WARNINGI The inside of the muffler contain chemicals that may be carcinogenic Avoid contact with these elements in the event ofa damaged muffler WARNINGI Bear in mind that The exhaust fumes from the engine are hot and may contain sparks which can start a fire Never start the machine indoors or near combustible material Locking nut mas AI A locking nut is used to secure some types of cutting attachment
13. high speed jet H is set too lean it will result in less power less performance poor acceleration and or damage to the engine If both the L and H jets are set too rich it will results in acceleration problems or too low a working speed Adjusting the start throttle speed The correct start throttle speed is set bv means of an adjuster on the rear of the handle next to the cable Use this screw 4 mm Allen screw to increase or decrease the start throttle speed Proceed as follows 1 Runthe machine at idle 2 Press the start throttle lock as described under the heading Starting and stopping 3 Ifthe start throttle speed is too low below 4000 rpm turn the adjuster screw A clockwise until the cutting attachment starts to rotate Then turn A clockwise a further 1 2 turn 4 Ifthe start throttle speed is too high turn the adjuster screw A anticlockwise until the cutting attachment stops Then turn adjuster screw A clockwise a further 1 2 turn WARNING If the idle speed cannot be adjusted so that the cutting attachment stops contact vour dealer service workshop Do not use the machine until it has been correctiv adjusted or repaired English 25 MAINTENANCE Muffler CAUTION Some mufflers are fitted with a catalytic converter See chapter on Technical data to see whether your machine is fitted with a catalytic converter The muffler is designed to reduce the noise level and to direct the exhaust g
14. the electrode gap Adjust the gap to 0 5 mm or replace the spark plug Check that the spark plug is fitted with a suppressor Clean the machines cooling system Clean or replace the spark arrestor mesh on the muffler only applies to mufflers without a catalytic converter Clean the outside of the carburettor and the space around it Check that the bevel gear is filled three quarters full with lubricant Fill if necessary using special grease Check the fuel filter from contamination and the fuel hose from cracks or other defects Replace if necessary Check all cables and connections Check the clutch clutch springs and the clutch drum for wear Replace if necessary by an autorized service workshop Replace the spark plug Check that the spark plug is fitted with a suppressor Check and clean the spark arrestor mesh on the muffler only applies to mufflers fitted with a catalytic converter 28 English TECHNICAL DATA Technical data Technical data Engine Cylinder displacement cm Cylinder bore mm Stroke mm Idle speed rpm Recommended max fast idle speed rpm Speed of output shaft rpm Max engine output acc to ISO 8893 kW rpm Catalvtic converter muffler Speed regulated ignition system Ignition svstem Manufacturer tvpe of ignition svstem Spark plug Electrode gap mm Fuel and lubrication svstem Manufacturer tvpe of carburettor Fuel tank capacitv litre Weight Weight without fuel
15. while working When several operators are working in the same area the safetv distance should be at least twice the tree height and no less than 15 metres WARNINGI Running an engine in a confined or badiv ventilated area can result in death due to asphvxiation or carbon monoxide poisoning WARNINGI Never allow children to use or be in the vicinitv of the machine As the machine is equipped with a spring loaded stop switch and can be started bv low speed and force on the starter handle even small children under some circumstances can produce the force necessarv to start the machine This can mean a risk of serious personal injurv Therefore remove the spark plug cap when the machine is not under close supervision 6 English Personal protective equipment IMPORTANTI A clearing saw brushcutter or trimmer can be dangerous if used incorrectly or carelessly and can cause serious or fatal injury to the operator or others It is extremelv important that vou read and understand the contents of this operators manual Vou must use approved personal protective equipment whenever vou use the machine Personal protective equipment cannot eliminate the risk of injurv but it will reduce the degree of injurv if an accident does happen Ask vour dealer for help in choosing the right equipment WARNINGI Listen out for warning signals or shouts when vou are wearing hearing protection Alwavs remove vour hearing protection as soon
16. 9 TECHNICAL DATA Centre hole in blades cutters 25 4 mm NN BEE IL TE Ic OOS S SS Grass blade grass cutter 45 Approved accessories Cutting attachment guard Art no EC declaration of conformity Applies to Europe only We Husqvarna AB SE 561 82 Huskvarna Sweden tel 46 36 146500 declare that the clearing saws Husqvarna 333R and 335RX with serial numbers dating from 2004 onwards the year is clearly stated on the rating plate followed by the serial number comply with the requirements of the COUNCILS DIRECTIVE of June 22 1998 relating to machinery 98 37 EC annex IIA of May 3 1989 relating to electromagnetic compatibility 89 336 EEC and applicable supplements of May 8 2000 relating to the noise emissions in the environment 2000 14 EC Conformity assessment according to Annex V For information relating to noise emissions see the chapter Technical data The following standards have been applied EN292 2 CISPR 12 2005 EN ISO 11806 SMP Svensk Maskinprovning AB Fyrisborgsgatan 3 SE 754 50 Uppsala Sweden has performed voluntary type examination on behalf of Husqvarna AB The certificates are numbered SEC 05 1052 01 164 044 01 164 046 335RX SEC 05 1051 01 164 045 01 164 047 333R Huskvarna February 17 2005 gt dh Bo Andr asson Managing Director 30 English LO y A EJ s35 A Bl AN A
17. NT If a saw blade or grass blade are to be used the machine must be equipped with the correct handlebar blade guard and harness Fitting the guard extension CAUTION The guard extension shall always be fitted when using the trimmer head plastic blades and combination guard The guard extension shall always be removed when using the grass blade and combination guard e Fit the mounting components as shown Enter the guard extension guide in the slot of the combination Put on the harness and hang the machine from the guard Then click the guard extension into position on the support hook Now make a final adjustment so that the A SSH EIER Taseneie machine is in a comfortable working position when it hangs from the harness e Tighten the knob RX e Loosely tighten the four screws R The guard extension is removed easily using the spark plug spanner see illustration LU mi F 12 English ASSEMBLY Fitting a blade guard grass blade and grass cutter Hook the blade guard combination guard A onto the fitting on the shaft and secure with the bolt CAUTIONI Ensure that the guard extension is removed Use the recommended blade guard See the Technical data section Fit the drive disc B on the output shaft Turn the blade shaft until one of the holes in the drive disc aligns with the corresponding hole in the gear housing Insert the locking pin C in the hole to lock the shaft
18. Operator s manual 333R 335Ry_ceries Please read the operator s manual carefully and make sure you understand the instructions before using the machine English KEY TO SYMBOLS Symbols WARNINGI Clearing saws brushcutters and trimmers can be dangerous Careless or incorrect use can result in serious or fatal injury to the operator or others Please read the operator s manual carefully and make sure you understand the instructions before using the machine E Always wear e A protective helmet where there is a risk of falling objects e Approved hearing protection e Approved eye protection Max speed of output shaft rpm max 10500 rpm C ww This product is in accordance with applicable EC directives Watch out for thrown objects and ricochets The operator of the machine must ensure while working that no persons or animals come closer than 15 metres Machines fitted with saw blades or grass blades can be thrown violentiv to the side e when the blade comes into contact witha 4 fixed object The blade is capable of gt amputating an arm or leg Always keep ij people and animals at least 15 metres from the machine Arrows which show limits for handle positioning Always wear approved protective gloves Wear sturdy non slip boots Only use non metallic flexible cutting attachments i e trimmer heads with trimmer cord 2 English Noise emission to the environment according
19. S e Large stems must be cut from two sides First determine which direction the stem will fall Make the first cut on the felling side Then finish cutting the stem from the other side Adjust the cutting pressure to match the size of the stem and the hardness of the wood Small stems require more pressure while large stems require less pressure l e Ifthe stems are tightly packed adapt your walking pace to Suit e lf the blade jams in a stem never jerk the machine free If you do this the blade bevel gear shaft or handlebar may be damaged Release the handles grip the shaft with both hands and gently pull the machine free Brush cutting with a saw blade A OO e Thin stems and brush are mown down Work with a sawing movement swinging sideways e Try to cut several stems in a single sawing movement e With groups of hardwood stems first clear around the group Start by cutting the stems high up around the outside of the group to avoid jamming Then cut the stems to the required height Now try to reach in with the blade and cut from the centre of the group If it is still difficult to gain access cut the stems high up and let them fall This will reduce the risk of jamming 22 English Grass clearing using a grass blade JB e Grass blades and grass cutters must not be used on woody stems A grass blade is used for all tvpes of tall or coarse grass The grass is cut down with a s
20. This is used to cut the cord to the correct length those in between to the left If the blade has been heavily pitted by stones it may be necessary to dress the top e To increase the life of the cord it can be soaked in water edges of the teeth with a flat file in exceptional cases If for a couple of days This will make the line tougher so that so this should be done before filing with a round file The it lasts longer top edges must be filed down by the same amount for all the teeth English 11 ASSEMBLY Assembling the handlebar and Assembling the cutting equipment throttle l e Remove the screw at the rear of the throttle handle kin NINSA L When fitting the cutting attachment it is Slide the throttle handle onto the right side of the extremely important that the raised section handlebar see diagram A on the drive disc support flange engages correctiv in the centre hole of the cutting attachment If the cutting attachment is fitted incorrectiv it can result in serious and or fatal personal injurv e Align the screw hole in the throttle handle with the hole in the handlebar WARNINGI Never use a cutting attachment e Refit the screw in the hole in the rear of the throttle handle witout pen gua EL EIS ne SEINE on Technical data If an incorrect or faulty guard is fitted this can cause serious e Screw the screw through the handle and handlebar personal injury Tighten it IMPORTA
21. aighten a twisted blade so that it can be reused Only use original blades of the specified type GENERAL SAFETY PRECAUTIONS Sharpening the saw blade Trimmer head Te TO RW IMPORTANTI Always ensure the trimmer cord is wound tightly and evenly e See the cutting attachment packaging for correct kan around the drum otherwise the machine will generate sharpening instructions harmful vibration A correctly sharpened blade is essential for working efficiently and to avoid unnecessary wear to the blade and clearing saw e Only use the recommended trimmer heads and trimmer cords These have been tested by the manufacturer to suit a particular engine size This is especially important when a fully automatic trimmer head is used Only use the recommended cutting attachment See the chapter on Technical data Z LU I e Smaller machines generally require small trimmer heads and vice versa This is because when clearing using a cord the engine must throw out the cord radially from the e Make sure that the blade is well supported when you file trimmer head and overcome the resistance of the grass it Use a 5 5 mm round file with a file holder being cleared e The length of the cord is also important A longer cord D requires greater engine power than a shorter cord of the same diameter e Make sure that the cutter on the trimmer guard is intact e The filing angle is 15 File alternate teeth to the right and
22. ases away from the operator The exhaust gases are hot and can contain sparks which may cause fire if directed against dry and combustible material Some mufflers are equipped with a special spark arrestor mesh If your machine has this type of muffler you should clean the mesh at least once a week This is best done with a wire brush On mufflers without a catalytic converter the mesh should be cleaned weekly or replaced if necessary On mufflers fitted with a catalytic converter the mesh should be checked and if necessary cleaned monthly If the mesh is damaged it should be replaced If the mesh is frequently blocked this can be a sign that the performance of the catalvtic converter is impaired Contact vour dealer to inspect the muffler A blocked mesh will cause the machine to overheat and result in damage to the cvlinder and piston CAUTIONI Never use a machine with a defective muffler WARNINGI Mufflers fitted with catalvtic converters get verv hot during use and remain so for some time after stopping This also applies at idle speed Contact can result in burns to the skin Remember the risk of firel 26 English Cooling svstem gt To keep the working temperature as low as possible the machine is equipped with a cooling system The cooling system consists of 1 Air intake on the starter 2 Cooling fins on the cylinder 3 Cylinder cover directs cold air over the cylinder Clean the coolin
23. ch of the machine in both directions and gives the operator a convenient and varied working area to work in EASA y A al Hi i MM Y b a N Y A a un me A NU nA ES p i JO ws N aN ae Mo Wo N QVC 6 fii REN A Clear a strip around 75 m long Move your fuel can as work progresses On sloping ground you should work along the slope It is much easier to work along a slope than it is to work up and down it You should plan the strip so that you avoid going over ditches or other obstacles on the ground You should also orient the strip to take advantage of wind conditions so that cleared stems fall in the cleared area of the stand To fell to the left the bottom of the tree should be pushed to the right Tilt the blade and bring it diagonally down to the right exerting firm pressure At the same time push the stem using the blade guard Cut with the area of the blade between 3 o clock and 5 o clock Apply full throttle before advancing the blade To fell to the right the bottom of the tree should be pushed to the left Tilt the blade and bring it diagonally up to the right Cut with the area of the blade between 3 o clock and 5 o clock so that the direction of rotation of the blade pushes the bottom of the tree to the left To fell a tree forwards the bottom of the tree should be pulled backwards Pull the blade backwards with a quick firm movement English 21 WORKING TECHNIQUE
24. ch out for thrown objects Always wear approved eye protection Never lean over the cutting attachment guard Stones rubbish etc can be thrown up into the eyes causing blindness or serious injury Keep unauthorised persons at a distance Children animals onlookers and helpers should be kept outside the safety zone of 15 m Stop the machine immediately if anyone approaches Never swing the machine around without first checking behind you to make sure no one is within the safety zone WORKING TECHNIQUES WARNING Sometimes branches or grass get caught between the guard and cutting attachment Always stop the engine before cleaning Working methods WARNINGI Avoid cutting with the area of the blade between the 12 o clock and 3 o clock positions Because of the speed of rotation of the blade kickback can occur if you attempt to cut thick stems with this area of the blade Forestry clearing using a saw blade The risk of kickback increases with increasing stem size You should therefore avoid cutting with the area of the blade between 12 o clock and 3 o clock Before you start clearing check the clearing area the type of terrain the slope of the ground whether there are stones hollows etc Start at whichever end of the area is easiest and clear an open space from which to work Work svstematicallv to and fro across the area clearing a width of around 4 5 m on each pass This exploits the full rea
25. cracks have formed at the bottom of the teeth or by the centre hole The most WARNING The complete clutch cover and common reason why cracks are formed is that sharp shaft must be fitted before the machine is corners have been formed at the bottom of the teeth while started otherwise the clutch can come loose sharpening or that the blade has been used with dull and cause personal injury teeth Discard a blade if cracks are found Always move the machine away from the refuelling area before starting Place the machine on a flat surface Ensure the cutting m attachment cannot come into contact with O gt ee gt any object Fa Make sure no unauthorised persons are in the working area otherwise there is a risk of serious personal injurv The safetv distance heck that th fl i k fati Check that the support flange is not cracked due to fatigue is 15 metres or due to being tightened too much Discard the support flange if it is cracked Starting Choke Set the choke control in the choke position e Ensure the locking nut has not lost its captive force The nut lock should have a locking force of at least 1 5 Nm The tightening torque of the locking nut should be 35 50 Nm e Check that the blade guard is not damaged or cracked Replace the blade guard if it is exposed to impact or is Primer bulb Press the air purge repeatedly until fuel begins cracked to fill the bulb The bulb need not be completely filled
26. dard harness LE lle Quick release At the front is an easily accessible quick release Use this if the engine catches fire or in any other emergency situation that requires you to free yourself from the machine and harness Spreading the load on your shoulders A well adjusted harness and machine makes work much easier Adjust the harness for the best working position Tension the side straps so that the weight is evenly distributed across both shoulders Correct height 1 Forestry clearing The machine should be supported in a harness when forestry clearing so that the cutting equipment is angled slightly forwards in relation to the ground Adjust the height using the strap on the harness for the support hook ASSEMBLY 2 Grass clearing The machine should be supported in a harness when grass clearing so that the cutting equipment is parallel to the ground Triobalance harness 6 Quick release Push down the red release lever to release the machine from the harness Adjusting the harness 1 Tighten the hip strap so that it sits securely 2 Tighten the chest strap under your left arm so that it fits closely around your body 3 Adjust the shoulder strap to distribute the load evenly across your shoulders Press downwards on the suspension hook to load the harness Husqvarna 4 Adjust the height of the suspension hook as described in the instructions for the standard harness
27. e filter oil contains a solvent to make it spread evenly through the filter Vou should therefore avoid skin contact Put the filter in a plastic bag and pour the filter oil over it Knead the plastic bag to distribute the oil Squeeze the excess oll out of the filter inside the plastic bag and pour off the excess before fitting the filter to the machine Never use common engine oil This would drain through the filter quite quickiv and collect in the bottom Spark plug AE The spark plug condition is influenced by e Incorrect carburettor adjustment e An incorrect fuel mixture too much or incorrect type of oil e Adirtvair filter These factors cause deposits on the spark plug electrodes which may result in operating problems and starting difficulties If the machine is low on power difficult to start or runs poorly at idle speed always check the spark plug first before taking any further action If the spark plug is dirty clean it and check that the electrode gap is 0 5 mm The spark plug should be replaced after about a month in operation or earlier if necessary CAUTION Always use the recommended spark plug type Use of the wrong spark plug can damage the piston cylinder English 27 MAINTENANCE Maintenance schedule The following is a list of the maintenance that must be performed on the machine Most of the items are described in the Maintenance section The user must only carry out the main
28. ed WORKING TECHNIQUES Clearing The clearing technique removes all unwanted vegetation Keep the trimmer head just above the ground and tilt it Let the end of the cord strike the ground around trees posts statues and the like CAUTIONI This technique increases the wear on the cord The cord wears quicker and must be fed forward more often when working against stones brick concrete metal fences etc than when coming into contact with trees and wooden fences When trimming and clearing vou should use less than full throttle so that the cord lasts longer and to reduce the wear on the trimmer head Cutting The trimmer is ideal for cutting grass that is difficult to reach using a normal lawn mower Keep the cord parallel to the ground when cutting Avoid pressing the trimmer head against the ground as this can ruin the lawn and damage the tool WS MANUAL TY A Whi Do not allow the trimmer head to constantly come into contact with the ground during normal cutting Constant contact of this type can cause damage and wear to the trimmer head Sweeping The fan effect of the rotating cord can be used for quick and easy clearing up Hold the cord parallel to and above the area to be swept and move the tool to and fro 4 1 L Y When cutting and sweeping you should use full throttle to obtain the best results English 23 MAINTENANCE Carburettor Your Husqvarna product has been designed and ma
29. g system with a brush once a week more often in demanding conditions A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder Bevel gear The bevel gear is filled with the right quantity of grease at the factory However before using the machine you should check that the bevel gear is filled three quarters full with grease Use HUSQVARNA special grease The grease in the bevel gear does not normally need to be changed except if repairs are carried out MAINTENANCE Air filter ie The air filter must be regulariv cleaned to remove dust and dirt in order to avoid e Carburettor malfunctions e Starting problems e Loss of engine power e Unnecessary wear to engine parts Clean the filter every 25 hours or more regularly if conditions are exceptionally dusty Cleaning the air filter Remove the air filter cover and take out the filter Wash it clean in warm soapy water Ensure that the filter is dry before refitting it An air filter that has been in use for a long time cannot be cleaned completely The filter must therefore be replaced with a new one at regular intervals A damaged air filter must always be replaced If the machine is used in dusty conditions the air filter should be soaked in oil See instructions under the heading Oiling the air filter Oiling the air filter ES Always use HUSQVARNA filter oil art no 531 00 92 48 Th
30. he blade guard and saw blade 13 Fitting other guards and cutting attachments 14 Adjusting the harness and clearing Saw ccccee 14 Standard harness ssseesennnnzennnnnnnnzzsnnnnzznnznzznzznzzzzzzz 14 Triobalance harness e enennnnnnnnnnnnnenznnnznznnnnnaa 19 FUEL HANDLING at 16 jib ji A 16 FOCIDO ze 17 STARTING AND STOPPING Check before starting ss eeeennnnnznnnnnanznzznnnnzzznn 18 Starting and stopping sse eeennnnnnzznnnnnnznnznnnzznnnnzn zz 18 WORKING TECHNIQUES General working instructions sssseeeeennnzennnznzznnnnnzzn 20 MAINTENANCE a 24 MONIGI sie ee 26 Cooling system ssssnennnnznnnennnnnnnnzzznnnnznnnanzzznnnnzn nn 26 e 26 AU o src 27 e 27 Maintenance schedule ccccooncccccccnnccccconnnnccnoncnnnnnanoss 28 TECHNICAL DATA Technical data ernst nenene 29 EC declaration of conformity cccccccccccccoconnnnncnnnnnncnnnos 30 Note the following before starting Please read the operator s manual carefully WARNING Long term exposure to noise can result in permanent hearing impairment So always use approved hearing protection WARNING Under no circumstances may the design of the machine be modified without the permission of the manufacturer Always use genuine accessories Non authorized modifications and or accessories can result in serious personal injury or the death of the operator or others WARNING
31. idewavs swinging movement where the movement from right to left is the clearing stroke and the movement from left to right is the return stroke Let the left hand side of the blade between 8 and 12 o clock do the cutting e If the blade is angled to the left when clearing grass the grass will collect in a line which makes it easier to collect e g bv raking e Try to work rhythmically Stand firmly with your feet apart Move forward after the return stroke and stand firmly again e Let the support cup rest lightly against the ground It is used to protect the blade from hitting the ground e Reduce the risk of material wrapping around the blade by following these instructions 1 Always work at full throttle 2 Avoid the previously cut material during the return stroke e Stop the engine unclip the harness and place the machine on the ground before you start to collect the cut material Grass trimming with a trimmer head Trimming e Hold the trimmer head just above the ground at an angle It is the end of the cord that does the work Let the cord work at its own pace Never press the cord into the area to be cut Why e The cord can easily remove grass and weeds up against walls fences trees and borders however it can also damage sensitive bark on trees and bushes and damage fence posts RWW AW LL e Reduce the risk of damaging plants by shortening the cord to 10 12 cm and reducing the engine spe
32. lectrical relays switches or boilers e When storing and transporting fuel always use approved containers intended for this purpose e When storing the machine for long periods the fuel tank must be emptied Contact your local petrol station to find out where to dispose of excess fuel e Ensure the machine is cleaned and that a complete service is carried out before long term storage e The transport guard must always be fitted to the cutting attachment when the machine is being transported or in storage e In order to prevent unintentional starting of the engine the spark plug cap must always be removed during long term storage if the machine is not under close supervision and when performing all service measures WARNING Take care when handling fuel Bear in mind the risk of fire explosion and inhaling fumes Fuel CAUTION The machine is equipped with a two stroke engine and must always been run using a mixture of petrol and two stroke engine oil It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained When mixing small amounts of fuel even small inaccuracies can drastically affect the ratio of the mixture WARNING Fuel and fuel fumes are highly inflammable and can cause serious injury when inhaled or allowed to come in contact with the skin For this reason observe caution when handling fuel and make sure there is adequate ventilation 16 Eng
33. lish Petrol i AE CAUTION Always use a quality petrol oil mixture at least 90 octane RON If your machine is equipped with a catalytic converter see chapter on Technical data always use a good quality unleaded petrol oil mixture Leaded petrol will destroy the catalytic converter Use low emission petrol also known as alkylate petrol if it is available e The lowest octane recommended is 90 RON If you run the engine on a lower octane grade than 90 so called knocking can occur This gives rise to a high engine temperature which can result in serious engine damage e When working at continuous high revs a higher octane rating is recommended Two stroke oil e For best results and performance use HUSQVARNA two stroke engine oil which is specially formulated for our air cooled two stroke engines e Never use two stroke oil intended for water cooled engines sometimes referred to as outboard oil rated TCW e Never use oil intended for four stroke engines e A poor oil quality and or too high oil fuel ratio may jeopardise function and decrease the life time of catalytic converters e Mixing ratio 1 50 2 with HUSQVARNA two stroke oil 1 33 3 with oils class JASO FB or ISO EGB formulated for air cooled two stroke engines l Two stroke oil litre Petrol litre 2 1 50 3 1 33 ow po w a a FUEL HANDLING Mixing e Always mix the petrol and oil in a clean container intended f
34. lways ensure that your hand is shielded by the blade guard when doing this Always use a socket spanner with a shaft that is long enough to allow this The arrow in the diagram shows the area where you should operate the socket spanner when loosening or tightening the nut Fitting other guards and cutting attachments Fall fe e Fit the trimmer guard combination guard A intended for use with the trimmer head plastic blades CAUTION Ensure that the guard extension is fitted Hang the trimmer guard combination guard A on the two hooks on the plate holder M Bend the guard around the shaft and tighten it with the bolt L on the opposite side of the shaft Use the locking pin C Place the locking pin in the groove on the screw head and tighten See diagram e Turn the blade shaft until one of the holes in the drive disc aligns with the corresponding hole in the gear housing e Insert the locking pin C in the hole to lock the shaft e Screw on the trimmer head plastic blades H in the opposite direction to the direction of rotation e To dismantle follow the instructions in the reverse order 14 English Adjusting the harness and clearing saw WARNING When using a clearing saw it must always be hooked securely to the harness Otherwise you will be unable to control the clearing saw safely and this can result in injury to yourself or others Never use a harness with a defective quick release Stan
35. nce English 19 WORKING TECHNIQUES General working instructions IMPORTANTI This section describes the basic safetv precautions for working with clearing saws and trimmers If you encounter a situation where you are uncertain how to proceed you should ask an expert Contact your dealer or your service workshop Avoid all usage which you consider to be beyond your capabilitv Vou must understand the difference between forestrv clearing grass clearing and grass trimming before use Basic safetv rules 1 Look around vou To ensure that people animals or other things cannot affect vour control of the machine To ensure that people animals etc do not come into contact with the cutting attachment or loose objects that are thrown out by the cutting attachment CAUTIONI Do not use the machine unless vou are able to call for help in the event of an accident Do not use the machine in bad weather such as dense fog heavy rain strong wind intense cold etc Working in bad weather is tiring and often brings added risks such as icv ground unpredictable felling direction etc Make sure vou can move and stand safelv Check the area around vou for possible obstacles roots rocks branches ditches etc in case vou have to move suddeniv Take great care when working on sloping ground Take great care when cutting a tree that is in tension A tree that is in tension mav spring back to its normal positi
36. nect the HT lead from the spark plug before you start to work on it WARNING Using an incorrect cutting attachment or an incorrectly sharpened blade increases the risk of kickback Cutting equipment Saw blades are intended for cutting fibrous types of wood o Grass blades and grass cutters are intended for cutting coarse grass 10 English General rules Only use cutting attachments with the guards we recommend See the chapter on Technical data N A C z gt E L Keep the teeth of the blade correctly sharpened Follow our instructions and use the recommended file gauge An incorrectly sharpened or damaged blade increases the risk of accidents 4 y Keep the correct setting on the saw blade Follow our instructions and use the recommended setting tool An incorrectly set saw blade increases the risk of jamming and kickback and damage to the saw blade Check the cutting attachment for damage or cracks A damaged cutting attachment should always be replaced gt em Sharpening grass cutters and grass blades Fa ACI e See the cutting attachment packaging for correct sharpening instructions Sharpen blades and cutters using a single cut flat file e Sharpen all edges equally to maintain the balance of the blade WARNING Always discard a blade that is bent twisted cracked broken or damaged in any other way Never attempt to str
37. nufactured to specifications that reduce harmful emissions After the engine has used 8 10 tanks of fuel the engine will be run in To ensure that it continues to run at peak performance and to minimise harmful exhaust emissions after the running in period ask your dealer service workshop who will have a rev counter at their disposal to adjust your carburettor WARNING The complete clutch cover and shaft must be fitted before the machine is started otherwise the clutch can come loose and cause personal injury Function EAG The carburettor governs the engine s speed via the throttle control Air and fuel are mixed in the carburettor The air fuel mixture is adjustable Correct adjustment is essential to get the best performance from the machine Adjusting the carburettor means that the engine is adapted to local operating conditions e g climate altitude petrol and the type of 2 stroke oil e The carburettor has three adjustment controls L Low speed jet H High speed jet T Idle adjustment screw e The Land H jets are used to adjust the supply of fuel to match the rate that air is admitted which is controlled with the throttle If they are screwed clockwise the air fuel ratio becomes leaner less fuel and if they are turned anti clockwise the ratio becomes richer more fuel A lean mixture gives a higher engine speed and a rich mixture gives a lower engine speed e The T screw regulates the throttle se
38. on before or after being cut If you position yourself incorrectly or make the cut in the wrong place the tree may hit vou or the machine and cause vou to lose control Both situations can cause serious personal injury Keep a good balance and a firm foothold 20 English Alwavs hold the machine with both hands Hold the machine on the right side of vour bodv Keep the cutting attachment below waist level Switch off the engine before moving to another area Fit the transport guard before carrving or transporting the equipment anv distance Never put the machine down with the engine running unless vou have it in clear sight The ABC of clearing Alwavs use the correct equipment Make sure the equipment is well adjusted Follow the safetv precautions Organise your work carefully Always use full throttle when starting to cut with the blade Always use sharp blades Avoid stones Control the felling direction take advantage of the wind WARNINGI Neither the operator of the machine nor anyone else may attempt to remove the cut material while the engine is running or the cutting equipment is rotating as this can result in serious injury Stop the engine and cutting equipment before you remove material that has wound around the blade shaft as otherwise there is a risk of injury The bevel gear can get hot during use and may remain so for a while afterwards You could get burnt if you touch it WARNINGI Wat
39. or fuel e Always start by filling half the amount of the petrol to be used Then add the entire amount of oil Mix shake the fuel mixture Add the remaining amount of petrol e Mix shake the fuel mixture thoroughly before filling the machine s fuel tank e Do not mix more than one months supply of fuel at a time e ifthe machine is not used for some time the fuel tank should be emptied and cleaned WARNING The catalytic converter muffler gets very hot during and after use This also applies during idling Be aware of the fire hazard especially when working near flammable substances and or vapours Fuelling BOIS WARNING Taking the following precautions will lessen the risk of fire Do not smoke or place hot objects near fuel Always shut off the engine before refuelling Always stop the engine and let it cool for a few minutes before refuelling When refuelling open the fuel cap slowly so that any excess pressure is released gently Tighten the fuel cap carefully after refuelling Always move the machine away from the refuelling area before starting Clean the area around the fuel cap Contamination in the tank can cause operating problems Ensure that the fuel is well mixed by shaking the container before filling the tank uam um Min 3 10 ft English 17 STARTING AND STOPPING Check before starting Starting and stopping e Check the blade to ensure that no
40. ork on the machine requires special training This is especially true of the machine s safety equipment If your machine fails any of the checks described below you must contact your service agent When you buy any of our products we guarantee the availability of professional repairs and service If the retailer who sells your machine is not a servicing dealer ask him for the address of your nearest service agent WARNING Never use a machine with faulty safety equipment The machine s safety equipment must be checked and maintained as described in this section If your machine fails any of these checks contact your service agent to get it repaired Throttle lock The throttle lock is designed to prevent accidental operation of the throttle control When you press the lock A i e when you grasp the handle it releases the throttle control B When you release the handle the throttle control and the throttle lock both move back to their original positions This movement is controlled by two independent return springs This arrangement means that the throttle control is automatically locked at the idle setting Make sure the throttle control is locked at the idle setting when the throttle lock is released Press the throttle lock and make sure it returns to its original position when you release it Check that the throttle control and throttle lock move freely and that the return springs work properly See ins
41. pin 11 Cylinder cover 28 Harness 12 Starter handle 29 Spark plug cap and spark plug 13 Fuel tank 30 Start throttle button 14 Choke control 31 Part throttle dial RX 15 Air purge 32 Adjusting the throttle wire 16 Air filter cover 33 Spark plug spanner 17 Handle adjustment 34 Guard extension English 5 GENERAL SAFETY PRECAUTIONS Important IMPORTANTI The machine is oniv designed for trimming grass grass clearing and or forestrv clearing The only accessories you can operate with this engine unit are the cutting attachments we recommend in the chapter on Technical data Never use the machine if vou are tired if vou have drunk alcohol or if vou are taking medication that could affect vour vision your judgement or your co ordination Wear personal protective equipment See instructions under the heading Personal protective equipment Never use a machine that has been modified in any way from its original specification Never use a machine that is faulty Carry out the checks maintenance and service instructions described in this manual Some maintenance and service measures must be carried out by trained and qualified specialists See instructions under the heading Maintenance Allcovers and guards must be fitted before starting Ensure that the spark plug cap and ignition lead are undamaged to avoid the risk of electric shock The machine operator must ensure that no people or animals come closer than 15 metres
42. tenance and service work described in this Operator s Manual More extensive work must be carried out by an authorised service workshop Daily maintenance Weekly maintenance Maintenance sb Clean the outside of the machine Check that the harness is not damaged Check that the suspension ring is not damaged Make sure the throttle trigger lock and the throttle function correctly from a safety point of view Check that the stop switch works correctly Check that the handle and handlebar are undamaged and secured correctly Check that the cutting attachment does not rotate at idle Clean the air filter Replace if necessary Check that the guard is undamaged and not cracked Replace the guard if it has been exposed to impact or is cracked Check that the blade is correctly centred is sharp and is not cracked An off centre blade will cause vibration that could result in damage to the machine Check that the trimmer head is undamaged and not cracked Replace the trimmer head if necessary Check that the locking nut of the cutting equipment is tighten correctly Check that nuts and screws are tight Check that there are no fuel leaks from the engine tank or fuel lines Check that the transport guard for the blade is intact and that it can be secured correctly Check the starter and starter cord Check that the vibration damping elements are not damaged Clean the outside of the spark plug Remove it and check
43. to serious engine damage e Carefully turn both jets L and H so that they are midway between fully screwed in and fully screwed out e Do not attempt to adjust the L and H jets beyond either stop as this could cause damage e Now start the machine according to the starting instructions and let it warm up for 10 minutes CAUTION If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti clockwise until the cutting attachment stops Low speed jet L Try to find the highest idle speed by turning the low speed jet L clockwise then anti clockwise When the highest speed has been found turn the low speed jet L 1 4 turn anti clockwise CAUTION If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti clockwise until the cutting attachment stops MAINTENANCE Fine adjustment of the idle speed T Adjust the idle speed using the idle adjustment screw T if it is necessary to readjust First turn the idle adjustment screw T clockwise until the cutting attachment starts to rotate Then turn the screw anticlockwise until the cutting attachment stops The idle speed is correctly adjusted when the engine will run smoothly in every position The idle speed should also be well below the speed at which the cutting attachment starts to rotate WARNING If the idle speed cannot be adjusted so that the cutting attachment stops contact
44. to the European Community s Directive The machine s emission is specified in chapter Technical data and on label Starting instructions Other symbols decals on the machine refer to special certification requirements for certain markets The engine is switched off by moving the stop switch to the stop position CAUTION The stop switch automatically returns to the start position In order to prevent unintentional starting the spark plug cap must be removed from the spark plug when assembling checking and or performing maintenance Always wear approved protective gloves Regular cleaning is required Visual check Approved eye protection must always be used CONTENTS Contents KEYTO SYMBOLS Sn A E i 2 CONTENTS A L 3 Note the following before starting 3 INTRODUCTION Dear Customer unnunnnsnnssnnnennnennnennnnnnnnnnnnnn nennen 4 WHAT IS WHAT What is what on the clearing saw ccccesseeeeeeeeees 5 GENERAL SAFETV PRECAUTIONS unleloj i pa 6 Personal protective equipment ss eeennzennnnzzzni 6 Machine s safety equipment e nenenzznnnnnzzjni Fi Cutting equipment nu 10 ASSEMBLY Assembling the handlebar and throttle 12 Assembling the cutting equipment uuseeneee 12 Fitting the guard extension ss enenennenzannnnnnzznzza 12 Fitting a blade guard grass blade and grass cutter 13 Fitting t
45. tructions under the heading Start Start the machine and apply full throttle Release the throttle and check that the cutting attachment stops and remains at a standstill If the cutting attachment rotates with the throttle in the idle position then the carburettor idle setting must be checked See instructions under the heading Maintenance Stop switch Use the stop switch to switch off the engine Start the engine and make sure the engine stops when you move the stop switch to the stop setting English GENERAL SAFETY PRECAUTIONS Cutting attachment guard This guard is intended to prevent loose objects from being thrown towards the operator The guard also protects the operator from accidental contact with the cutting attachment Check thatthe guard is undamaged and not cracked Replace the guard if it has been exposed to impact or is cracked Always use the recommended guard for the cutting attachment you are using See chapter on Technical data WARNINGI Never use a cutting attachment without an approved guard See the chapter on Technical data If an incorrect or faultv guard is fitted this can cause serious personal injury Vibration damping svstem Vour machine is equipped with a vibration damping svstem that is designed to minimize vibration and make operation easier Using incorrectiv wound cord or a blunt or incorrect cutting attachment wrong tvpe or incorrectiv filed see instructions
46. tting at idle speed If the T screw is turned clockwise this gives a higher idle speed turning it anti clockwise gives a lower idle speed 24 English Basic setting e The basic carburettor settings are adjusted during testing at the factory The basic setting is richer than the optimal setting and should be maintained for the first few hours the machine is in use The carburettor should then be finely adjusted Fine adjustment should be carried out by a skilled technician CAUTION If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti clockwise until the cutting attachment stops Rec idle speed See the Technical data section Recommended max speed See the Technical data section WARNING If the idle speed cannot be adjusted so that the cutting attachment stops contact your dealer service workshop Do not use the machine until it has been correctly adjusted or repaired Fine adjustment e When the machine has been run in the carburettor should be finely adjusted The fine adjustment should be carried out by a qualified person First adjust the L jet then the idling screw T and then the H jet Conditions e Before any adjustments are made make sure that the air filter is clean and the air filter cover is fitted If you adjust the carburettor when the air filter is dirty it will result in a leaner mixture when the filter is finally cleaned This can lead
47. your dealer service workshop Do not use the machine until it has been correctly adjusted or repaired High speed jet H The high speed jet H affects the engine power speed temperature and fuel consumption If the high speed jet H is set too lean Screwed in too far the engine speed will be too high and cause engine damage Do not let the engine run at full soeed for more than 10 seconds Note that the engine should be loaded when you adjust the high speed jet H You should therefore fit the trimmer head T35 2 7 mm cord before adjusting the high speed jet The cord length should be standard i e to the knife on the trimmer guard Apply full throttle and turn the high speed jet H very slowly clockwise until the engine slows down Then turn the high speed jet H very slowly anticlockwise until the engine starts to run unevenly Now turn the high speed jet H slowly clockwise a little way until the engine runs smoothly l iil e e H CAUTION For optimum adjustment of the carburettor contact a qualified dealer service workshop that has a revolution counter at their disposal Correctly adjusted carburettor When the carburettor is correctly adjusted the machine will accelerate without hesitation and burble a little at maximum speed It is also important that the cutting attachment does not rotate at idle If the low speed jet L is set too lean it may cause starting difficulties and poor acceleration If the
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