Husqvarna 343O3 Operator'S Manual Download Page 1

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Operator’s manual

343O3

Please read the operator’s manual carefully and make sure you understand the instructions

before using the machine.

English

Summary of Contents for 343O3

Page 1: ...Operator s manual 343O3 Please read the operator s manual carefully and make sure you understand the instructions before using the machine English ...

Page 2: ...rough branches and other objects especially if they are wet Always keep a distance of at least 10 m between the machine and high voltage power lines and or any objects that are touching them If have to work within this safe distance you should always contact the relevant power company to make sure the power is switched off before you start work This machine has a long reach Make sure that no peopl...

Page 3: ...is Operator s Manual KEY TO SYMBOLS Symbols CONTENTS Contents Note the following before starting INTRODUCTION Dear Customer WHAT IS WHAT What is what GENERAL SAFETY PRECAUTIONS Important Personal protective equipment Machine s safety equipment ASSEMBLY Shaft assembly Adjusting the harness FUEL HANDLING Fuel safety Fuel Fuelling STARTING AND STOPPING Check before starting Starting and stopping WORK...

Page 4: ...dustry 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 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 ...

Page 5: ...ndle 4 Throttle control 5 Stop swich 6 Throttle lock 7 Cylinder cover 8 Starter handle 9 Fuel tank 10 Air ﬁlter cover 14 Key nº 36 11 Combination screwdirver 12 Allen Key 13 Combination Spanner 1 2 3 4 6 5 7 10 8 9 11 12 13 14 15 15 Key nº 41 English 5 ...

Page 6: ...e ignition system of this machine produces an electromagnetic ay under some circumstances interfere with pacemakers To reduce the risk of serious or fatal injury we recommend persons with pacemakers to consult their physician and the pacemaker manufacturer before operating this machine WARNING Running an engine in a ly ventilated area can result in death due to asphyxiation or carbon monoxide pois...

Page 7: ...dependent 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 lockout is released Press the throttle lockout and make sure it returns to its original position when you release it Check that the throttle control and throttle lockout move freely and that the return s...

Page 8: ...rs with a sparkarrestor mesh Checkwhetherthemuffleronyour For m very important that you follow the instructions on checking maintaining and servicing your machine Never use a machine that has a faulty m r Regularly check that them the machine If them y rk arrestor mesh this must be cleaned regularly A blocked mesh will cause the engine toverheat and may lead to serious damage WARNING Over exposure...

Page 9: ...troduce the lug in the towing hook of the machine as showed in the pictures then screw the security nuts oon the lugs Take the strips on the harnes and suit it according the user after that put the harnes in your left shoulder take the machine and rise it up them prove the adjustment and the confort of the harnes if it s correct unload the machine and proced to start the engine if it is not correc...

Page 10: ...e correct mixture is obtained When mixing small amounts of fuel even small inaccuracies can drastically affect the ratio of the mixture Petrol CA UTION Alwaysuseaqualitypetrol oilmixtureatleast 90 octane RON If your machine is equipped with a catalyticconverter seechapteronTechnicaldata always use a good quality unleaded petrol oil mixture Leaded petrol will destroy the catalytic converter Use low...

Page 11: ... Contamination in the tank can cause operating problems Ensure that the fuel is well mixed by shaking the container before filling the tank 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 WARNING Taking the following precautions will lessen the ris...

Page 12: ...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 WARNING The complete clutch cover and pole m fore the machine is started otherwise the clutch can come loos...

Page 13: ...e 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 Stopping Stop the engine by s CAUTION The stop switch automatically returns to the start position In order to prevent uninten...

Page 14: ...ot flexible enough this branches can cause a backward movement causing an unbalance of the machine According to the morphology of the branch it is possible to observe that the hook can be drived out from the branch when it s hooked from the superior part In this situation the branch must be hooked for lower part IMPORTANT The most ideal labor with the machine is obtained by 1 or 2 acceleration pro...

Page 15: ...rna SYNTHETIC HT Quantity 160 cc This operation has to be done always in the technical services authorised by Husqvarna PREVENTIVE MAINTENANCE At the end of the collection season it is recommended to have a preventive maintenance check done by the Authorised Technical Service HOOK RUBBERS CHANGE Take off the 4 hook screws with a wrench These screws are placed in the marks Remove the damaged rubber...

Page 16: ...sic setting 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 few hours the machine is in use The carburettor Fine adjustment should be carried out by a skilled technician CAUTION If the shaft is moving when the engine is idling the idle adjustment screw T should be turned anti clockwise u...

Page 17: ... 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 Note that the engine should not be under load when you adjust the high speed jet H You should therefore remove the cutting attachment nut support and drive disc before adjusting the high speed jet H The high speed jet H is adjusted correctl...

Page 18: ...ked this can be a sign that the performance of the catalytic converter is impaired Contact your dealer to inspect the muffler A blocked mesh will cause the machine to overheat and result in damage to the cylinder and piston See also instructions under the heading Maintenance CA UTION Never use a machine with a defective muffler Cooling system To keep the working temperature as low as possible the ...

Page 19: ...lter lter must be regularly cleaned to remove dust and dirt in order toavoid Carburettor malfunctions Starting problems Loss of engine power Unnecessary wear to engine parts Excessive fuel consumption every 25 hours or more regularly if conditions are exceptionally dusty lter Remove the air coverandtake out the r Wash it clean inwarm soapy water ry bef Anair that hasbeen in use for along time cann...

Page 20: ...nes X Clean the area under the protective cover X Check the starter and starter cord X Check that the vibration damping elements are not damaged X Clean the outside of the spark plug Remove it and check 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 X Clean the machine s cooling system X Clean or replace the spark arrestor ...

Page 21: ...No Speed regulated ignition system Yes Ignition system Manufacturer type of ignition system Walbro MB Spark plug NGK CMR7H Electrode gap mm 0 6 0 7 Fuel and lubrication system Manufacturer type of carburettor Walbro Diaphram type Fuel tank capacity litre 0 8 Weight Weight without fuel kg 11 7 Sound le vels see note 1 Equivalent sound pressure level at the operator s ear measured according to EN IS...

Page 22: ...ate followed by the serial number comply with the requirements of the COUNCIL S DIRECTIVE relating to machinery 98 37 EC EN 61000 6 4 EN 61000 6 2 relating to electromagnetic compabiñity The following standards have been applied EN ISO 12100 1 EN ISO 12100 2 EN ISO 13850 EN1037 EN ISO 14121 1 APPLUS CAmpus Universitat Autonoma S N 08193 Cerdanyola del Valles has performed a voluntary type examinat...

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