Husqvarna 142 RB, 152RB Trimmer User Manual
Contents
1. Oo Technical data Engine Cylinder capacity cm cu inch Cylinder bore mm inch Stroke length mm inch Idling speed rom Recommended max speed rpm Speed of output axle rom M ax engine output acc to ISO 8893 Catalytic converter muffler Speed regulated ignition systen Spark arrestor screen Ignition system M anufacturer type of ignition system Spark plug Electrode gap mm inch Fuel lubrication system M anufacturer type of carburettor Fuel tank capacity litres US pint Weight Weight without fuel cutting tool and guard kg lbs Noise levels TECHNICAL DATA 142RB 41 5 2 53 40 1 57 33 1 30 2 600 10 400 8 060 1 3kW 6 500 rpm No No No Ikeda D enso NGK BPM R6Y 0 6 0 7 0 02 0 03 Walbro WYJ 1 0 2 11 11 5 25 4 Equivalent noise pressure level at the user s ear measured according to prEN 31806 and ISO 7917 dB A min max Equivalent noise power level at the user s ear measured according to prEN 31806 and ISO 10884 dB A min max Vibration levels Vibration levels on the handles measured 97 98 109 110 according to prEN 31806 and ISO 7916 m s W hen idling left right handles min W hen idling left right handles max At max speed left right handles min At max speed left right handles max NOTE 1 4 1 4 1 4 1 4 1 5 2 3 11 5 9 0 152RB 50 2 3 06 44 1 73 33 1 30 2 602. Bear in mind that exhaust fumes contain carbon monoxide which can cause carbon monoxide poisoning Therefore never start or run the machine indoors are hot and can contain sparks that can cause fires Never start the machine indoors or close to inflammable material 7 Cutting equipment 1 Grass blades are intended for brush cutting 2 Thetrimmer head is intended for trimming grass 8 Locking nut A locking nut is used to secure some types of cutting equipment on the output shaft Englis 1 5 SAFETY INSTRUCTIONS Control maintenance and service of the machine s safety equipment 3 Cutting attachment guard Check that the guard is undamaged and not cracked IMPORTANT INFORMATION All service and repairs to the machine require special training Replace the guard if it This applies especially to the machine s safety equipment If the machine does not meet any of the controls listed below you should contact your service workshop The purchase of one of our products guarantees that professional repair and servicing will be carried out on it If the point of purchase is not one of our servicing dealers please ask for details of the closest service workshop 1 Throttle trigger lock e Check that the throttle is locked in the idling position when the throttle trigger lock isin its original position e Press
3. 6 Cutting equipment SAFETY INSTRUCTIONS This section describes how through correct maintenance and through using the right type of cutting equipment you can e Reduce the machine s tendency to kickback e Obtain maximum cutting capacity e Increase the service life of the cutting equipment The three basic rules 1 O nly use the cutting and guard equipment we recommend See chapter T echni cal data 2 K ep the blade s teeth well and correctly sharpened Follow our instructions and use the recommended filing gauge An incorrectly sharpened or damaged blade increases the risk of an accident 3 C heck the cutting equipment with regard to damage and crack formation D amaged cutting equipment should always be replaced V 7 Quick release e Check that the harness straps are correctly positioned W hen the harness and machine are adjusted check the harness safety release catch to ensure it works correctly 8 Locking nut Protect your hand from injury when assembling use the blade guard as protection when tightening with a socket spanner Tighten the nut by turning against the direction of rotation Loosen the nut by turning in the direction of rotation NOTE the nut has a left hand thread Tighten the nut using a socket spanner 35 50 Nm 3 5 5 kpm NOTE The locking nut s nylon lock must not be so worn that it can be turned by
4. and that it can be secured correctly 12 Check that all nuts and screws aretightened 22 English Weekly maintenance 1 Check the starter the starter cord and the return spring 2 M ake sure that the vibration damping elements are not damaged 3 Clean the outside of the spark plug Remove and check the electrode gap Adjust the gap to 0 6 0 7 mm 0 02 0 03 inch or change the spark plug 4 Clean the cooling fins on the flywhed 5 Clean or replace the muffler s spark arrestor screen not on mufflers with a catalytic converter 6 Clean the carburettor area 7 Clean the cooling fins on the cylinder and check that the air intake in the starter unit is not blocked 8 C heck that the angle gear is 3 4 filled with grease Fill if necessary using special grease Monthly maintenance 1 Clean the fuel tank using petrol 2 Clean the carburettor and the area surrounding it 3 Clean the fan and the area around it 4 Check the fuel filter and the fuel pipe replace if necessary 5 Check all cables and connections 6 Check the clutch clutch springs and the clutch drum with regard to wear Replace if necessary 7 Change the spark plug
5. instructions The blades are sharpened using a single cut flat file Sharpen all edges equally to maintain the balance of the blade WARNING Always discard a blade that is bent twisted cracked shattered or damaged in any other way Never attempt to straighten a twisted blade for use again Only use original blades of the prescribed type English 2 1 MAINTENANCE Maintenance schedule Below follows some general maintenance instructions If you need further information please contact your service workshop Daily maintenance 1 Clean the outside of the machine 2 Makesure the harness is not damaged 3 Make sure the throttle trigger lock and the throttle function correctly from a safety point of view 4 Check that the stop switch functions 5 Check that the cutting head does not rotate while idling 6 Clean the air filter Replace if necessary 7 Check the guards for damage and ensure that they are not cracked Replace the guards if they have been exposed to impact or are cracked 8 Check that the blade is well centred is sharp and is not cracked An uncentred blade causes vibrations that can result in damage to the machine 9 Check that the trimmer head is undamaged and not cracked Replace the trimmer head if necessary 10 Check that the locking nut is tight 1 rm Check that the blade s transport guard is intact
6. H arness Drive axle grease Air purge Cord cutter Guard extension English 13 ASSEMBLY Assembling the transport guard Assembling the J handle WARNING Only grass blades or trimmer heads plastic blades may be used when the J handle is fitted Clearing blades must never be used with the J handle e Fit the handle using the 4 screws about 30 cm in front of the throttle lever on the shaft See the arrow mark on the shaft e Finely adjust the handle to give a comfortable working stance Tighten the knob Assembly of the blade and trimmer head It is extremely important that the disc drives support flange s guide engages correctly in the cutting equipment s centre hole when assembling the cutting equipment Cutting equipment assembled incorrectly can result in serious and or fatal personal injury Under no circumstances may the cutting equipment be used without an approved guard fitted See the chapter Technical data If the wrong guard or a defective guard is fitted this can cause serious personal injury 14 English 1 Insert the tips of the blade into the grooves in the transport guard A 2 Wind the guard around the blade then snap the hook B to secure the transport guard Assembling the blade guard and grass blade e Fit the guard A to the gear housing using the support plate M and two
7. If the screen is frequently blocked this can be a sign that the function of the catalytic converter is impaired Contact your dealer to inspect the muffler A blocked screen will cause the engine to overheat resulting in damage to the cylinder and piston Also see under M aintenance NOTE Never use a machine with a defective muffler English 19 MAINTENANCE Cooling system Drive shaft To maintain as low an gt e T he flexible drive shaft is lubricated with special grease T he operating temperature as shaft must be lubricated at least every 25 working hours A possible the engine is tube of drive shaft grease is supplied with every machine equipped with a cooling NOTE Do not use gearbox grease on the drive shaft system 4 TEIN system consists 3 e Lift up the locking button of Se that holds the drive shaft LAr alr intake onthe Se sleeve in the clutch cover starter unit TE 2 Cooling fins on the 1 iL flywheel EE 3 Cooling fins on the gr cylinder 4 Cylinder cover leads cold 2 Removethe clip that air onto the cylinder holds the throttle cable on Clean the cooling systen the drive shaft using abrush at least oncea week in difficult conditions more often A dirty or blocked cooling system leads to the engine overheating resulting in damage to the cylinder and piston Pull the drive shaft sleeve out of the clutch cover Remove the drive shaft
8. from the sleeve either by shaking it out or pulling it out using pliers Air filter Coat the surface of the Theair filter should be 36 shaft with grease from the cleaned regularly removing tube Spread it out using a dust and dirt to avoid brush or rag e carburettor malfunction starting problems reduced engine power unnecessary wear to engine parts e abnormal fuel consumption Clean the filter after every 25 hours or more regularly if operating conditions are W hen the shaft is exceptionally dusty correctly installed in the sleeve the end of the shaft should project about 10 Cleaning the air filter mm beyond the edge of Dismantle the air filter the sleeve cover and remove the air filter Wash in clean warm Rotate the shaft and push soapy water Ensure that the it in at the same time filter is dry before refitting An air filter used for along Slide the drive shaft back into the sleeve M ake sure the shaft engages correctly by turning it and pushing at the same time Install the drive shaft period of time can never be sleeve in the clutch cover cleaned completely There so thattheholeis fore it isnecessary to replace positioned directly thefilter from timeto time underneath the locking with a new filter A dam button on the clutch aged air filter must always cover be replaced 20 English Angle gear The angle gear i
9. hand T he lock shall hold at least 1 5 Nm Thenut should be replaced after it has been put on approx 10 times WARNING Never use a machine with defective safety equipment The safety equipment should be maintained as described in this section If your machine does not meet any of these controls you should contact your service workshop English 7 SAFETY INSTRUCTIONS Cutting equipment IMPORTANT INFORMATION The section describes how through correct maintenance and through using the right type of cutting equipment you can reduce the machine s tendency to kickback obtain maximum clearing capacity and increase the service life of the cutting equipment Only use the cutting and guard equipment we recommend See chapter Technical data e Refer to the instructions for the cutting equipment for the correct winding of cord and for the selection of the right cord diameter Keep the blade s teeth well and correctly sharpened Follow our recommendations Also refer to the instructions on the blade packaging WARNING Incorrect cutting equipment or an incorrectly sharpened blade increases the risk of kickback Filing the grass blade e See the cutting equipment s packaging for correct filing instructions The blades are sharpened using a single cut flat file Sharpen all edges equally to maintain the balance of the blade 8 English Trim
10. handle unit WARNING Over exposure to vibrations can result in blood vessel or nerve injury to persons suffering with blood circulation problems Seek medical attention if you experience physical symptoms that can be related to over exposure to vibrations Examples of such symptoms are numbness lack of feeling tickling pricking pain lack of or a reduction in normal strength changes in the colour of the skin or its surfaces These symptoms normally appear in the fingers hands or wrists 5 Quick release Thereis an easily accessible quick release catch fitted to the chest as a safety precaution in the event of a firein the engine or for any other situation that requires you to free yourself from the machine and harness See the section Adjusting the harnes and brush cutter 6 Muffler The muffler is designed to give the lowest possible noise level and to direct the engine s exhaust fumes away from the operator In countries that havea warm and dry climate the risk of fire is obvious We have therefore fitted certain mufflers with a spark arrestor screen M ake sure that your muffler is fitted with this kind of screen It is extremely important that the instructions for checking maintaining and servicing the muffler are followed see the section Control maintenance and service of the machine s safety equipment A WARNING
11. if the engine should catch fire or in any other emergency situation when you quickly need to take off the harness and machine Equal load on shoulders A well matched saw and harness make work much easier Adjust the harness to give the best working stance Adjust the side straps so that the weight is equally divided across the shoulders SAFETY INSTRUCTIONS Basic clearing techniques e Always carry out clearing and trimming at full throttle e Always drop to idling speed after each working operation Longer periods running at full throttle without loading the engine that is without resistance which the engine feels from the cutting equipment when trimming can lead to serious engine damage Designations e Brush cutting is a general term for clearing grass Grass blades are used for this purpose IN L e Grasstrimmingis a general term for light clearing e g around edges or around trees A trimmer head or plastic blade is used WARNING Sometimes grass can collect in the spray guard and cutting head Always stop the engine when cleaning Brush cutting using a grass blade A blade is used for all types of high or thick grass T he grass is cut down with a sideways 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 blade work on the left hand side between 8 a
12. of 15 m Stop the machine immediately if anyone approaches English 1 1 SAFETY INSTRUCTIONS Grass trimming using the trimmer head Trimming e Thetrimmer is ideal to cut Hold the trimmer head grass that is difficult to just abovethe ground at reach using a normal lawn an angle It is the end of mower Keep the cord the cord that carries out parallel to the ground when the work Let the cord cutting Avoid pressing the work at its own pace Do trimmer head against the not press the cord into the ground as this can ruin the NM AN area to be cut lawn and damage the tool Wi ie WAL The cord can easily e Do not allow the trimmer remove grass and weeds NG AR head to constantly come up against walls fences into contact with the trees and borders ground during normal however it can also cutting procedures damage sensitive bark on Constant contact can cause trees and bushes and damage and wear to the damage fence posts trimmer head e Reduce the risk of damaging plants by Sweeping shortening the cord to 10 12 cm and reducing the engine speed e Therotating cord s fanning effect can be used for quick and easy cleaning H old the cord parallel to and above the area to be swept and move the trimmer from side to side Clearing e The clearing technique removes all unwanted vegetation K eep the trimmer head just above When cutting and the ground and tilt it Let sweeping you should use ite rare us full
13. or objects that can be thrown by the cutting equipment e NOTE N ever use a machine without the possibility of calling for help in the event of an accident 2 Avoid usage in unfavourable weather conditions For example thick fog heavy rain strong winds or extreme cold etc To work in bad weather conditions is tiring and can create dangerous situations for example slippery surfaces AG 3 M ake sure you can walk and stand safely Look out for any obstacles with unexpected movement roots stones branches pits ditches etc Take great care when working on sloping ground 4 T he engine should be switched off before moving When moving over longer distances and transporting the transport guard should be used 5 N ever put the machine down with the engine running unless you have good sight of it 10 English Adjusting the harness and brush cutter WARNING When working with the brush cutter the harness should always be worn If this is not done you cannot control the brush cutter safely and this can result in injury to yourself or someone else Never use a harness with a defective quick release catch Quick release On thefront is an easily _ accessible quick release EAS catch e Pull out the red strap e Thehip strap and one shoulder strap will be automatically released at the same time and the harness and the engine unit will slide to the ground Use this
14. screws L Fit the drive disc B on the output axle Turn the blade axle until one of the holes in the drive disc aligns with the hole in the gear housing Insert the locking pin C in the hole so that the axle is locked Place the blade D support cup F and support flange E on the output shaft Fit the nut G The tightening torque of the nut is 35 50 Nm 3 5 5 kpm U se the socket spanner in the tool kit H old the handle of the spanner as close to the blade guard as possible Thenut is tightened when the spanner is turned against the direction of rotation left hand thread ASSEMBLY Assembling other guards and cutting equipment e Fit the guard A to the gear housing using the support plate M and two screws L Fit the disc drive B on the output axle Turn the blade axle until one of the disc drive s holes aligns with the corresponding holein the gear housing Insert the locking pin C into the hole to lock the axle Screw on the trimmer head H in the direction of rotation Dismantling takes place in the reverse order Assembling the spray guard Install the cord cutter and guard extension to the spray guard 1 Fasten the cord cutter A to the spray guard with two M 5 x 25 screws lock washers and hex nuts as shown 2 Attach the guard extension B to the guard with the five M5 x 25 screws
15. to prevent the throttle from accidentally being engaged When the trigger lock A is pressed into the handle when you hold the handle the throttle B is released W hen the grip on the handle is released the throttle and the throttle trigger lock return to their original positions This takes place via two independent return spring systems T his means that the throttle is automatically locked in its idling position 2 Stop switch The stop switch should be used to stop the engine 3 Cutting attachment guard T his guard is intended to prevent objects from being thrown towards the operator and to protect the operator from unintentional contact with the cutting attachment WARNING Under no circumstances may the cutting equipment be used without an approved guard fitted See the chapter Technical data If the wrong guard or a defective guard is fitted this can cause serious personal injury SAFETY INSTRUCTIONS 4 Vibration damping system Your machine is equipped with a vibration damping system which is designed to give as vibration free and comfortable use as possible Theus of blunt or incorrect cutting equipment the wrong type or incorrectly sharpened see the section Sharpening the blade increases the level of vibration The machines vibration damping system reduces the transfer of vibrations between the engine unit cutting equipment and the machine s
16. washers and hex nuts as shown Assembling the flexible shaft 1 Remove the screw and insert the outer fitting with o ring into the joint pipe A and tighten the screw 2 Insert the outer fitting into the clutch case with pulling up the pin B Be sure pin returns to original position by spring and outer fitting never comes off from clutch case Connecting throttle cable and stop switch wires 1 Insert the throttle cable through the cable adjuster sleeve on the carburettor bracket M akesure the end of the throttle cable housing is seated positively in the sleeve 2 Position the slotted fitting on the carburetor so the recessed hole A is away from the cable adjuster sleeve 3 Rotate the carburettor throttle cam and slip the throttle cable through the slot in the slotted fitting making sure the cable lug drops into the recessed hole 4 Operate the throttle trigger a few times to make sure that it works correctly 5 Plug the stop switch wires into the matching connectors from the engine N ote that wire polarity is not important 6 Bind the throttle cable and the flexible shaft with two bands B gt English 15 Cable adjustment ASSEMBLY e Throttle cable should be paralleled to flexible shaft In case of twisting they should be restored by parallel e Throttle cable should be adjusted under the bended flexible shaft as sh
17. 0 10 400 8 060 1 5kW 6 500 rpm No No No Ikeda D enso NGK BPM R6Y 0 6 0 7 0 02 0 03 Walbro WYJ 1 0 2 11 11 5 25 4 97 98 109 110 1 4 1 4 1 4 1 4 15723 11 5 9 0 Thenoise and vibration measurments are made with all for the machine approved cutting equipment Themaximum and minimum values are stated in the table above Approved accessories 142RB 152RB Centre holein blades 20 mm T hreaded blade axle M 12 Grass blade grass knife Trimmer head Support cup Type Cutting attachment guard Art No Multi 275 4 275 4 teeth 531 00 77 01 Multi 300 3 300 3 teeth 531 00 77 01 Trimmy S II 531 00 77 01 Trimmy H II 531 00 77 01 Superauto III 531 00 77 01 Fixed English 23 EU declaration of conformity Only applies to Europe Directive 98 37 EC Annex II A We Husqvarna AB S 561 82 Huskvarna Sweden tel 46 36 146500 declare under sole responsibility that the brush cutters Husqvarna 142RB 152RB from the serial numbers of 1999 and onwards the year is clearly stated in plain text on the type plate with subsequent serial number is in conformity with the following standards or other normative documents following the provisions in the COUNCIL S DIRECTIVES of June 22 1998 relating to machinery 98 37 EC of May 3 1989 relating to electromagnetic compatibility 89 336 EC and applicable supplements The following standards have been applied EN292 2 EN11806 ISO14865 ISO14740
18. CISPR 12 SMP Svensk Maskinprovning AB Fyrisborgsgatan 3 S 754 50 Uppsala Sweden has carried out voluntary type approval for Husqvarna AB The certificate is numbered SEC 99 670 142RB SEC 99 671 152RB Huskvarna 13 August 1999 AY Anders Str by Product manager 4 Husqvarna We hope you find the links below useful For further gardening information visit www GardenResources co uk Blower Vacs Brush cutters Brushcutters Chainsaws Chain saws Cultivators Cylinder lawn Cylinder mowers Echo chainsaws Echo Strimmers mowers Electric Fertiliser Garden blowers Garden rollers Garden shredders chainsaws spreaders Garden tractors Garden vacuums Hayter lawn Hedge cutters Hedgecutters mowers Hover mowers Husqvarna Kawasaki brush Kawasaki Lawn mowers chainsaws cutters strimmers Lawn scarifiers Lawn tractors Leaf blowers Leaf vacuums Petrol chainsaws Petrol hedge Ride on lawn Ride on mowers Rotary mowers Rotavators cutters mowers Ryobi strimmers Scarifiers Strimmers Westwood lawn Westwood ride on tractors mowers Westwood Brush Cutters Brushcutters Blower Vacs Chain Saws tractors Chainsaws Cultivators Cylinder Lawn Echo Chainsaws Echo Strimmers Mowers Electric Fertiliser Garden Blowers Garden Rollers Lawn Rollers Chainsaws Spreaders Garden Garden Tractors Garden Vacuums Hayter Lawn Hedge Cutters Shredders Mowers Hedgecutter
19. Check that the trimmer head and spray guard are not damaged or cracked Replace the trimmer head or spray guard if they are exposed to impact or are WARNING When the engine is started with the choke in the choke or start position the cutting equipment starts to rotate immediately Start Press the machine body against the ground using your left hand NOTE Not your foot Grip the starter cracked handle slowly pull out the e N ever use the machine without a guard or spray guard nor cord with your right hand with a defective guard until you feel some resist ance the starter pawls grip now quickly and powerfully Start and stop pull the cord WARNING Reset the choke control as The complete clutch cover with shaft soon 35 the engine fi res and must be fitted before the machine is repeat until the engine starts started otherwise the clutch can become W hen the engine starts loose and cause personal injury quickly apply full throttle Always move the machine from the filling and the start throttle will DER area before starting Place the machine on automatically disengage SB a flat surface Ensure the cutting equip NOTE Do not pull the gt NZ ment cannot come into contact with any object Make sure no unauthorised persons are in the working area other wise there is a risk of serious personal cord from the fully extended injury The safety distance is 15 metres position
20. T his can damage the machine starter cord out completely and do not release the starter 18 English MAINTENANCE Carburettor Your H usqvarna product has been designed and manufac tured to specifications that reduce harmful emissions After your unit has been run 8 10 tanks of fuel the engine has broken in To ensure that your unit is at peak perform ance and producing the least amount of harmful emissions after break in have your authorized servicing dealer who has a revolution counter at his disposal to adjust your carburet tor for optimum operating conditions WARNING The complete clutch cover with shaft must be fitted before the machine is started otherwise the clutch can become loose and cause personal injury Operation e Thecarburettor governs the engine s speed via the throttle Air fuel is mixed in the carburettor T he air fuel mixture is adjustable T o take advantage of the engine s optimal output the adjustment must be correct e Thesetting of the carburettor means that the engine is adapted to local conditions for example the climate altitude petrol and the type of 2 stroke oil Idle speed adjustment T e Check that the air filter is clean When the idle speed is correct the trimmerhead will not rotate If adjustment is required close clockwise the T screw with the engine running until the trimmerhead starts to N rotate 3 400 rpm O pen counterclockwi
21. The machine is only designed for trimming grass and brush cutting The only accessories to be used with the engine unit as a drive source are the cutting units we recommend in the chapter Technical data Never use the machine if you are tired if you have consumed alcohol or if you are taking medicines that can affect your sight your judgement or the control of your body Use personal protective equipment See the section Personal protective equipment Never use a machine that has been modified so that it no longer corresponds with the original design Never use a machine that is faulty Follow the maintenance control and service instructions in this Operator s Manual Some maintenance and service actions should be carried out by trained and qualified specialists See the chapter Maintenance All covers and guards must be fitted before starting the machine Check that the spark plug cap and HT lead are not damaged otherwise you could get an electric shock The machine operator shall ensure while working Fuel safety e Always use a fuel container with an anti spill valve e N ever fill the machine while the engine is running Always stop the engine and let it cool for a few minutes before refuelling Provide good ventilation when filling or mixing fuel petrol and 2 stroke oil e Movethe machine at least 3 m from the filling position before starting N ever start the machine a If
22. dangers of inhaling the engine s exhaust fumes O bserve your surroundings and make sure that there is no risk of people or animals coming into contact with the cutting equipment Place the machine on the ground ensure the cutting equipment runs free of twigs and stones Push the machine body towards the ground using your left hand NOTE Not with your foot Grip the starter handle with your right hand and pull the starter cord Always keep the transport guard attached when transporting and storing the machine WARNING Exercise great care when handling fuel KARA w er f lt ON Le Ci Bear in mind the risk of fire explosions and inhaling fumes English 9 SAFETY INSTRUCTIONS General working instructions IMPORTANT INFORMATION This section takes up the basic safety precautions for working with the brush cutter and trimmer 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 capability Before starting you must understand the difference between forestry clearing brush cutting and grass trimming Basic safety precautions 1 0 bserve your surroundings e To ensure that people animals or other things cannot affect your control of the machine e To ensure that the above mentioned do not come into contact with the cutting equipment
23. e TA Set the stop For reasons of safety follow switch to the start position these recommendations CHOKE Set the choke V4 control in the choke posi tion AIR PURGE Prime with fuel by pressing the dia phragm repeatedly until fuel begins to run back into the tank through the transparent fuel hose e Check the blade to ensure that no cracks have formed at the bottom of the teeth or by the centre hole The most common reason why cracks are formed is that sharp corners have been formed at the bottom of the teeth while sharpening or that the blade has been used with dull teeth Discard a blade if cracks are found e Check that the support flange is not cracked due to fatigue or due to being tightened too much Discard the support flange if it is cracked Warm engine Use the same starting procedure as for the cold engine but do not set the choke control in the choke position Set the throttle to the start position by pressing the throttle trigger and then pressing the red button next to the stop button e Ensure the locking nut has Stop not lost its captive force Stop the engine by switching The nut lock should have the stop switch to the stop a locking force of at least setting 1 5 Nm The tightening torque of the locking nut should be 35 50 Nm e Check that the guard is not damaged or cracked Replace the guard if it is exposed to impact or is cracked e
24. el tank Do not mix more than max one month s supply of fud e If the brush cutter is not used for a long period of time the fuel tank should be emptied and cleaned Fuelling WARNING The following precautions reduce the risk of fire Do not smoke or place any sources of heat in the vicinity of the fuel Never refuel when the engine is running Always stop the engine and let it cool for a few minutes before refuelling Open the fuel cap slowly when fuelling so that any over pressure is released slowly Tighten the fuel cap carefully after refuelling Always move the machine from the fuelling place before starting e Clean around the fuel cap Contamination in the tank can disrupt operations e Ensure that the fud is well mixed by shaking the container before filling the tank e Always use a fua container with an anti spill valve e If Husqvarna two stroke oil is not available you can use a high quality two stroke oil intended for air cooled engines Contact your dealer when selecting an oil M ixing ratio 1 25 4 e Never use two stroke oil intended for water cooled outboard motors so called outboard motor oil e Never use oil intended of four stroke engines Gasolin Oil l Benzin Huile Aceite Essence Lit Gasolina Lit 4 1 25 5 0 20 10 0 40 15 0 60 20 0 80 English 17 START AND STOP Control before starting un
25. in the throttle trigger lock and make sure it returns to its original position when released e Ensure that the throttle and throttle trigger lock move easily and that their return spring systems function e See section Start Start the machine and apply full throttle Release the throttle and check that the cutting equipment stops and remains at a standstill If the cutting equipment rotates with the throttle in the idling position then the carburettor s idling setting must be checked See chapter M aintenance 2 Stop switch Start the engine and make sure that the engine stops when the stop switch is moved to the stop position 6 English has been exposed to impact or iscracked e Always use the prescribed blade an guard combination see chapter T echnical data 4 Vibration damping system e Check the vibration damping element regularly for material cracks and distortion e Check that the vibration damping element is undamaged and securely attached 5 Muffler 1 N ever use a machine that has a defective muffler 2 Check regularly that the muffler is secure 3 1f your muffler is fitted with a spark arrestor screen then it should be cleaned regularly A blocked screen leads to the engine overheating with serious damage as a result Never use a muffler with a defective spark arrestor screen
26. ixture of petrol and two stroke oil It is important to measure the quantity of oil accurately to ensure the correct mixture ratio Small discrepancies in the amount of oil have a great bearing on the proportions of the fuel mixture when mixing small amounts of fuel WARNING Always provide good ventilation when handling fuel Petrol p NOTE 21e Always use an oil mixed quality petrol at least 90 octane If your machine is equipped with a catalytic converter see technical data an unleaded oil mixed quality petrol should always be used A leaded petrol will destroy the catalytic converter The lowest recommended octane rating is 90 If you run the engine on a petrol with a lower octane rating than 90 so called knocking can occur This leads to an increased engine temperature which can result in a serious engine breakdown W hen working at continuous high revs a higher octane rating is recommended Two stroke oil e For the best results use H usqvarna two stroke oil which has been specially produced for brush cutters and chain saws M ixing ratio 1 50 2 Mixture e Always mix petrol and oil in a clean container intended for petrol e Always start by filling half the quantity of petrol required Then add the entire oil quantity M ix shake the fu mixture Fill the remaining quantity of petrol e Mix shake the fuel mixture carefully before filling in the machine s fu
27. mbling the flexible Shaft mumsar 15 Connecting throttle cable and stop switch WireS 15 Cable adjustmant eessenneseseeneenenenenennnnnnnnennnennnnnnnnn anne 16 Adjusting the harness and Clearing saw 16 FUEL HANDLING FUG MIXUIG anni nie AAR 17 FUCUIING a SP Re RANA KR TMA SAR RAS 17 START AND STOP Control before starting 18 Startand HO i an a a aada 18 MAINTENANCE Car Duretto nn ee tran an Aine 19 Muller se nr aa ANT 19 Cooling SVM rte nie n a ea 20 LS RS OP CR RAR Gna 20 Drive Sa te ee een ase 20 Angle gearanan iaa na a Magan 21 Spark Pl UC aiian ei a Ea 21 Filing the grass blade 21 M aintenance SCHEdUIC ccccesesssseseessssescrsssssessstessseeenes 22 TECHNICAL DATA T42RB LS2R Bienne va A 23 English 3 SAFETY INSTRUCTIONS Personal protective equipment IMPORTANT INFORMATION A brush cutter brushcutter or trimmer used incorrectly or carelessly can become a dangerous tool that can cause serious or fatal injury to the operator or others It is extremely important that you read and understand the content of this manual When using a brush cutter brushcutter or trimmer personal protective equipment approved by the appropriate authorities must be used Personal protective equipment does not eliminate the risk of accidents however it can reduce the effects of an injury in the event of an accident Ask your dealer for help when choosing protective e
28. mer head Only use a trimmer head and trimmer cord that is recommended T hese 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 cutting equipment we recommend See chapter T echnical data Generally smaller machines require a small trimmer head and vice versa T his is because when clearing using a cord the engine must throw out the cord radially from the trimmer head and also meet resistance from the grass being cleared Thelength of the cord is also important A longer cord requires greater engine power than a shorter cord of the same diameter M ake sure the knife positioned on the trimmer guard is intact T his is used to cut the cord to the correct length To increase the life of the cord it can be soaked in water for a few days This will make the line tougher and it will keep longer IMPORTANT INFORMATION Always ensure the trimmer cord is wound tightly and evenly around the drum otherwise harmful vibrations will occur WARNING Always stop the engine before starting work on any part of the cutting equipment This continues to rotate even after the throttle has been released Ensure that the cutting equipment has stopped completely and remove the cable from the spark plug before you start to work on it SAFETY INSTRUCTIONS General safety instructions IMPORTANT INFORMATION
29. nd 12 o clock If the blade is angled to the left when clearing the grass will collect in aline which makes collection easier e g when raking Try to work rhythmically Stand firmly with your feet apart M ove forward after the return stroke and stand firmly again Let the support cup rest lightly against the ground It is used to protect the blade from hitting the ground Reduce the risk of material wrapping around the blade by following these instructions a Always work at full throttle b Avoid the previously cut material during the return stroke Stop the engine loosen the harness and place the machine on the ground before you start to collect the cut material WARNING Neither the user of the tool or anyone else may attempt to remove the cut material while the engine is running or with the blade rotating as this can result in serious injury Stop the engine and blade before you remove material that has wound around the blade as otherwise there is a risk of injury The bevel gear unit can get hot during use and may remain so for a while afterwards There is a risk of slight burns if you touch it WARNING Warning for thrown objects Always wear protective glasses Never lean over the 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
30. own 1 Loosen the lock nut C and adjust the cable adjuster sleeve D so the stop on the carburettor throttle cam just contacts the throttle stop and the cable position keep 1 2 mm play between cable lug and slotted fittings when the throttle trigger is fully depressed 2 W hen the throttle cable is adjusted correctly tighten the lock nut 16 English Dc Adjusting the harness and brush cutter WARNING When working with the brush cutter the harness should always be worn If this is not done you cannot control the brush cutter safely and this can result in injury to yourself or someone else Never use a harness with a defective quick release catch Quick release On the front is an easily accessible quick release catch e Pull out the red strap e Thehip strap and one shoulder strap will be automatically released at the same time and the harness and the engine unit will slide to the ground Use this if the engine should catch fire or in any other emergency situation when you quickly need to take off the harness and machine Equal load on shoulders A well matched saw and harness make work much easier Adjust the harness to give the best working stance Adjust the side straps so that the weight is equally divided across the shoulders FUEL HANDLING Fuel NOTE The machine is fitted with a two stroke engine and must always be run on a m
31. quipment WARNING Remove your hearing protection as soon as you stop the engine so that you can hear any noises or warning signals HELM ET A helmet should be worn if trees to be cleared are higher than 2 metres EAR PROTECTION Ear protection offering sufficient dampening effect should be used EYE PROTECTION Blows from branches or objects thrown by the rotating cutting equipment can damage the eyes GLOVES Gloves should be worn when necessary e g when assembling cutting equipment BOOTS Useanti slip and stable boots CLOTHING Wear clothes made of a strong fabric and avoid loose clothing that can catch on shrubs and branches Always wear heavy duty long pants Do not wear jewellery shorts sandals or go barefoot Secure hair so it is above shoulder level FIRST AID KIT A first aid kit should be carried by operators of brush cutters brushcutters or trimmers 4 English The machine s safety equipment This section describes the machine s safety equipment its function and how checks and maintenance are carried out to ensure that it operates correctly See the chapter W hat is what to locate where this equipment is positioned on your machine WARNING Never use a machine with defective safety equipment Follow the control maintenance and service instructions described in this section 1 Throttle trigger lock T he throttle trigger lock is designed
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33. se the screw until the v trimmerhead stops You have reached the correct idle speed abt 2 600 rpm when the engine runs smoothly in all positions well below the rpm when the trimmerhead starts to rotate CIE ME FAnn A WARNING Contact your servicing dealer if the idle speed setting cannot be adjusted so that the cutting attachment stops Do not use the machine until it has been properly adjusted or repaired NOTE The machine should only be used for short periods at its highest speed Muffler NOTE Some mufflers are fitted with a catalytic converter See Techni cal data to see whether you brush cutter is fitted with a catalytic converter T he muffler is designed to dampen the noise level and to direct the exhaust fumes away from the user The exhaust fumes are hot and can contain sparks which can result in fire if the exhaust fumes are directed towards a dry and inflamma ble material Some mufflers are equipped with a special spark arrestor screen If your machine is fitted with this type of screen it should be cleaned regularly T his is done using a wire brush On mufflers without a catalytic converter the screen should be cleaned weekly or replaced if necessary On mufflers fitted with a catalytic converter the screen should be checked and cleaned monthly If the screen is damaged it should be replaced
34. sfilled with a sufficient quantity of grease at the factory H owever before using the machine you should check that the angle gear is filled to 3 4 with grease Use H usqvarna special grease Normally the grease does not need to be changed except when the angle gear is repaired Spark plug Thecondition of the spark plug is affected by An incorrect carburettor setting e An incorrect fuel mixture too much or faulty oil e A dirty air filter T hese factors cause deposits on the spark plug electrode that may result in malfunc tion or starting difficulties MAINTENANCE 0 6 0 7 mm If the machine is low on power difficult to start or runs poorly while idling always check the spark plug first If the spark plug is dirty clean it and at the same time check that the electrode gap is 0 6 0 7 mm T he spark plug should be changed after about one month of operation or earlier if necessary NOTE Always use the recommended type of spark plug An incorrect spark plug can damage the cylinder piston Filing the grass blade WARNING Always stop the engine before starting work on any part of the cutting equipment This continues to rotate even after the throttle has been released Ensure that the cutting equipment has stopped completely and remove the cable from the spark plug before you start to work on it e See the cutting equipment s packaging for correct filing
35. t Husqvarna Symbols LL max 10500 rpm t4 2 English A P i t FE N SYMBOL EXPLANATION WARNING Clearing saws brushcutters and trimmers can be dangerous Careless or incorrect use can result in serious or fatal injury to the operator or others Read through the O perator s M anual carefully and understand the content before using the machine Always use e A protective helmet where there is arisk of falling objects Ear protection e Approved eye protection e M ax speed of output axle rom e This product is in accordance with applicable CE directives e Beware of thrown objects and ricochets e The operator of the machine shall ensure while working that no persons or animals come closer than 15 metres e M achines fitted with clearing or grass blades can be thrown violently to the side when the blade comes into contact with a fixed object The blade can cause the amputation of arms and legs Always keep people and animals at least 15 metres from the machine e Arrows which show limits for handle mounting e Always wear approved protective gloves e Useanti slip and stable boots e Only use non metallic flexible cutting elements that is trimmer head with trimmer cord Other symbols decals on the machine refer to special certification requirements for certain markets Checks and or maintenance should be carried out with the engine s
36. throttle to obtain the posts statues and the like a NOTE Thistechnique increases the wear on the cord N Thecord wears quicker Dove and must be fed forward more often when working against stones brick concrete metal fences etc than when coming WARNING Warning for thrown objects Always wear protective glasses Never lean over the guard Stones rubbish etc can be thrown up into the eyes causing into contact with trees blindness or serious injury and wooden fences Keep unauthorised persons at a distance Children animals onlookers and helpers e When trimming and should be kept outside the safety zone of clearing you should use 15 m Stop the machine immediately if less than full throttle so anyone approaches that the cord lasts longer and to reduce the wear on the trimmer head 12 English WHAT IS WHAT What is what on the grass trimmer and the brushcutter Blade Grease filler cap Angle gear Blade guard Shaft Locking button for start throttle Throttle Stop switch Throttle trigger lock Cylinder cover Starter handle Fuel tank Choke Air filter cover Locking nut Support flange oo ON Oo pow ND m PP PP PP Hm EES WW HH N N 0 1 23 24 25 26 21 28 29 30 31 32 33 34 35 Support cup Drive disc J handle Trimmer head Socket spanner O perator s M anual Transport guard Allen key Spanner Locking pin
37. witched off with the stop switch in the STOP position Always wear approved protective gloves Regular cleaning required Ocular control Approved eye protection must always be used CONTENTS H usqvarna AB has a policy of continuous product development and therefore reserves the right to modify the List of contents design and appearance of products without prior notice SYMBOL EXPLANATION SYMPOIS LE Arai tatin a a a a 2 WARNING CONTENTS Under no circumstances may the design List of contents 3 of the machine be modified without the SAFETY INSTRUCTIONS permission of the manufacturer Always Personal protective equipment n se 4 use genuine accessories Non authorized The machine s safety equipment 4 modifications and or accessories can Control maintenance and service of the machine s safety result in serious personal injury or the UATE En naar 6 death of the operator or others Cutting eqUIPMENL naeh ei 8 General safety instructions 9 General working instructions 10 Adjusting the harness and Clearing saw 10 Basic clearing techniques 11 WHAT IS WHAT W hat is what on the grass trimmer brush cutter 13 ASSEMBLY Assembling the handle sessies 14 Assembly of the blade and trimmer head 14 Assembling the transport guard sses 14 Assembling the blade guard and grass blade 14 Assembling other guards and cutting equipment 15 Assembling the spray guard seese 15 Asse
38. you have spilt fuel on it Wipe up all spillage b If you have spilt fuel on yourself or your clothes that no persons or animals come closer than 15 Change your clothes metres When several operators are working in the same area the safety distance should be at least double tree length however at least 15 metres WARNING A Faulty cutting equipment or an incorrectly Sharpened blade increases the risk of accidents Start Store and transport the machine and fuel so that any leakage or fumes do not risk coming into contact with sparks or WARNING i naked flames For example electric machines electric When the engine is started with the choke in either the choke or start throttle positions like c If there is a fuel leak M ake regular checks for leakage from the fuel cap and the fuel supply pipes Transport and storage motors electrical switches power switches heaters or the the cutting equipment starts to rotate immediately The complete clutch cover with shaft must be fitted before the machine is W hen storing and transporting fuel approved containers intended for this purpose must be used W hen storing the machine for long periods the fuel tank must be enptied C ontact your local petrol station to find out how to dispose of excess fuel started otherwise the clutch can become loose and cause personal injury N ever start the machine indoors Bear in mind the
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