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325HS75 / HS99 Operator's Manual ( EPA ) Please read these instructions carefully and make sure you understand them before using the hedge trimmer . 101 90 46 - 95
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SYMBOL EXPLANATION Checks and / or maintenance should be Symbols carried out with the engirm switched off , with the stop switch in the STOP position . WARNING ! The hedge trimmer can be dangerous [ Careless or incorrect use can result in serious , even fatal injury . Always use approved protective gloves . Read through the Operator's Manual carefully and understand the content before using the hedge trimmer . Regular cleaning required . Always use • Ear protection • Approved eye protection Ocular control . • This product is in accordance with applicable CE directives . • Always wear approved protective Approved eye protection must always be gloves . used . Other symbols / decals on the machine refer to special certification requirements for certain markets . 2 - English
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CONTENTS List of contents Husqvarna AB has a policy of contirmous product development and therefore reserves the right to modify the design and appearance of products without prior notice . SYMBOL EXPLANATION Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CONTENTS Maintenance , replacement , or repair of the emission control List of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 devices and systems may be performed by any nonroad engine repair establishment or individual . SAFETY INSTRUCTIONS Personal protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 The machine's protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Control , maintenance and service of the hedge trimmer's protective equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 General working instructions for hedge trimmer . . . . . . . . . . . . . . . . . . 9 WHAT IS WHAT ? What is what on the hedge trimmer ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 FUEL HANDLING Fuel mixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Fuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 START AND STOP Control before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 WARNING Start and stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 The engine exhaust from this product MAINTENANCE contains chemicals known to the State Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 of California to cause cancer , birth Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 defects or other reproductive harm . Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Spark plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 _ Hur _ rarrm ii i _ _ " Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 HUSQVARNAAB HUSKVARNSAWEDEN Maintenance schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 IMPORTANTENGINEINFORMATION TWC THISENGINECONFORMTSO U , S , EPA PH1 FORSMALLNON - ROADENGINES , TECHNICAL DATA REFERTOOPERATORM'SANUALFOR 325HS75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 MAINTENANCSEPECIFICATIOANNSDADJUSTMENTS , / 325HS99 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 This decal certifies that the product has been approved in accordance with American exhaust emissions requirements EPA 1 . English - 3
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SAFETY INSTRUCTIONS Personal protective eqipment The machine's protective equipment IMPORTANT INFORMATION This section describes the hedge trimmer's protective equip - ment , its function and how checks and maintenance are Incorrect or careless use of a hedge trimmer can carried out to ensure that it operates correctly . ( See the chapter turn it into a dangerous tool that can cause " What is what " to locate where this equipment is positioned on serious or even fatal injury . It is extremely your machine . ) important that you read and understand this manual . When using a hedge trimmer , 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 equipment . 1 . Throttle trigger lock The throttle trigger lock is designed to prevent the throttle from accidentally being engaged . The trigger ( A ) can only be pressed in , if the lock ( B ) is held in ( = tile operator holding the handle ) . When the grip on GLOVES the handle is released the Gloves should be worn when throttle and the throttle necessary , e . g . , when trigger lock return to their inspecting , cleaning or original positions . This assembling cutting equip = takes place via two indepen - ment . dent return spring systems . This means that the throttle EAR PROTECTION is automatically locked in Ear protection offering the idling position . sufficient dampening effect should be used . 2 . Stop switch EYE PROTECTION Blows from branches or The stop switch ( C ) should objects thrown by the be used to stop the engine . moving blades can damage the eyes . BOOTS Use anti - slip and stable boots . 3 . Hand guard D \ \ CLOTHING The hand guard ( D ) Wear clothes made of a prevents the operator's strong fabric and avoid loose hands from coming into clothing that can catch on contact with the blades . For shrubs and branches . Always example , if the operator wear heavy - duty long pants . should loose his grip on the Do not wearjewellery , front handle . shorts , sandals or go bare - foot . Secure hair so it is above shoulder level . FIRST AID KIT A first aid kit should be close at hand . 4 - English
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SAFETY INSTRUCTIONS 5 . Muffler 4 . Vibration damping system The muffler is designed to give the lowast possible noise The hedge trimmer is level and to direct the equipped with a vibration engine's exhaust fumas away damping system , which is from the operator . Muffler designed to give as vibra - fitted with catalytic con - tion - free and comfortable verter is also designed to use as possible . reduce harmful exhaust components . The hedge trimmers In countries that have a vibration damping system warm and dry climate the reduces the transfer of risk of fire is obvious . We vibrations between the have therefore fitted certain er _ gine / unit blades and tile mufflers with a spark arrest hedge trimmer's handles . screen . Make sure that your The engine body , including muffler is fitted with this the blades , is suspended on kind of screen . the handlebar system by five springs . It is extremely important that the instructions for checking , maintaining and servicing the muffler are il 4iii : ! iili ¸ i _ ! iiiiiiill i ! iii / + ii ! J iii : i ¸ ¸ followed . ( See the section " Control , maintenance and _ rviee of the machine _ " safety equipment " ) . English - 5
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SAFETY INSTRUCTIONS Control , maintenance and service of the hedge trimmer's protective equipment IMPORTANT INFORMATION All service and repairs to the machine require special training . This applies especially to the machine's safety equipment . If the machine does not meet any of he 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 . 2 . Stop switch 1 . Throttle trigger lock Check that the throttle is • Start the engine and locked in the " idling make sure that the engine position " when the stops when the stop switch is moved to the throttle trigger lock is in its original position . stop position . • Press in the throttle trigger lock and make sure it returns to its original position when released . 3 . Hand guard • Ensure that the throttle • Ensure that the blade D and throttle trigger lock \ guard is fitted correctly . move easily and that their return spring systems • Make sure the hand function . guard is not damaged in anyway . • See the section " Star [ ' . Start the hedge trimmer and apply full throttle . / Release the throttle and check that the blades 4 . Vibration stop and remain at a damping system standstill . If the blades rotate with the throttle in • Check the vibration the idling position then damping element the carburettor's idling regularly for material setting must be checked . cracks and distortion . See chapter " Mainte - J _ ance ' _ • Check that the vibration damping element is securely attached between the engine unit and the handlebar unit . 6 - English
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SAFETY INSTRUCTIONS 5 . Muffler Blade guard • Never use a machine that • Replace tile blades if they has a defpctive muffler . are bent or damaged . • Check regularly that the muffler is secure . • If your muffler is fitted with a spark arrest screen then it should be cleaned regularly . A blocked screen leads to the engine overheating with serious damage as a re . sult . Never use a muffler with a defective spark arrest screen . 6 . Blades To ensure good cutting results it is important that the contact pressure between the blades is correct . The contact pressure between tile blades is adjusted by tightening tile screws on the underside of the bar as far as they will go , then backing them off 1 / 4 turn . Lock the screws using tile locking nuts on the top face of the bat - . The washers should still slide freely under the screw heads after tile screws have been tight - ened . The edges of the blade are too hard to be filed . Dull blades should be sharp - ened using a grinder . English - 7
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SAFETY INSTRUCTIONS Fuel safety General safety instructions IMPORTANT INFORMATION • Always use a fuel container with an anti - The machine is only designed for cutting spill valve . branches and twigs . • Never fill the machine Never use the machine if you are tired , if you while the engine is have consumed alcohol , or if you are taking rurming . Always stop the medicines that can affect your sight , your engine and let it cool for judgement or the control of your body . a few minutes before Use personal protective equipment . See the refuelling . section " Personal protective equipment " . • Provide good ventilation Min . 3 m Never use a machine that has been modified so when filling or mixing that it no longer corresponds with the original ( 10ft ) fuel ( petrol and 2 - stroke design . oil ) . Never use a machine that is faulty . Follow the • Move the machine at maintenance , control and service instructions in least 3 m from the filling this Operator's Manual . Some maintenance and service actions should position before starting . be carried out by trained and qualified specialists . See the chapter " Maintenance " • Never start the machine : All covers and guards must be fitted before a ) If you have spilt fuel on starting the machine . Check that the spark plug it . Wipe up all spillage . cap and HT lead are not damaged , otherwise you could get an electric shock . b ) If you have spilt fuel on yourself or your clothes . Change your clothes . c ) If there is a fuel leak . Make regular checks for leakage from the fuel cap and the fuel supply pipes . Start • The gearbox and clutch drum must be fitted before the machine is started , otherwise the clutch can become loose Transport and storage and cause personal injury . Store and transport the machine and fuel so that any • Never start the machine indoors . Bear in mind the dangers leakage or fumes do not risk coming into contact with of inhaling the engine's exhaust fumes . sparks or naked flames . For example , electric machines , electric motors , electrical switches / power switches , heaters Observe your surroundings and make sure that there is no or the like . risk of people or animals coming into contact with the cutting equipment . • When storing and transporting fuel , approved containers intended for this purpose must be used . • Place the machine on the ground , make sure the • When storing the machine for long periods the fuel tank @ blades are free from must be emptied . Contact your local petrol station to find branches and storms . out how to dispose of excess fuel . Press the machine body against the ground using • The blades transport guard should always be fitted when your left hand ( NOTE ! transporting or storing the hedge trimmer . Do not use your foot ) . Grip the starter handle with your right hand and pull the starter cord . 8 - English
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SAFETY INSTRUCTIONS Protective Safety instructions when instructions while using the hedge trimmer working @ • Always ensure you have a safe and firm working position . • Always use both hands to hold the machine . Hold the machine in front of you . • Use your left hand to operate the throttle . NOTE [ Read the Operator's Manual carefully before using the hedge trimmer . Personal protection • Make sure that your hands and feet cannot come into • Always wear boots , and tile contact with the blades other safpty equipment when tile engine is described in the section rurming . " Personal protective equipment " . • Always wear working • When the engine is clothes and thick , long switched off , keep your trousers . hands and feet away from the blades until they have • Never wear loose fitting stopped . clothes or jewellery • Secure hair so it is above • Do not cut too close to the ground . Storms and other objects shoulder level . can be throwrL • Make sure that there are no foreign objects , such as Protective instructions regarding the electricity cables , etc . , in your working area . Also remove any surroundings objects that could damage the hedge trimmer , such as metal items . • Never aUow children to use the machine . • If any object is hit or if vibrations occur stop tile machine immediately . Remove the spark plug cable from the spark • Ensure no one comes plug . Check that the machine is not damaged . Repair any within 15 metres while damage . working . • Never allow anyone to use the machine without first being absolutely sure that they understand tile contents of the Operator's Manual . • Never work on a ladder , stool or any other raised position that is not fully secured . English - 9
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SAFETY INSTRUCTIONS Protective instructions when work is completed • The transport guard should always be fitted to the blades when the machine is not in use . • Ensure tile blades have stopped and remove the spark plug cable from the spark plug before carrying out cleaning , repairs or an inspection . • Always wear heavy duty gloves when repairing the blades . The blades are extremely sharp and can easily causes cuts . • Store the machine out of reach from children . Only use original spare parts when carrying out repairs . Basic working techniques • When cutting the sides of a hedge , work from the bottom upwards . When cutting horizontally , work from right to left . • Adjust the throttle setting to suit the load . • When trimming a hedge the engine should always be turned away from the hedge . • The hedge trimmer should be held as close to the body as possible to get the best balance . • Make sure that the tip does not touch the ground . • Do not tt T to force the work , but move at a steady speed so that all the stems are cut evenly . 10 - English
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WHAT IS WHAT ? = = _ = = ® What is what on the hedge trimmer ? 13 . Throttle trigger lock 1 . Operator's Manual 2 . Grease nipple 14 . Throttle trigger 3 . Gearbox 15 . Stop switch 4 . Blades 16 . Air filter cover 5 . Hand guard 17 . Spark plug spanner 6 . Handle 18 . Allen key 7 . Cylinder cover 19 . Blade cover ( Transport ) 8 . Starter handle 9 . Fuel cap 10 . Fuel tank 11 . Air purge 12 . Choke English - 11
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FUEL HANDLING Mixture Fuel mixture NOTE [ • Always mix gasoline arm oil in a clean container intended The machine is fitted with a two - stroke engine and must for fuel . always be run on a mixture of gasoline and two - stroke oil . It is • Always start by filling half the quantity of gasoline required . important to measure the quantity of oil accurately , to ensure Then add the entire oil quantity . Mix ( shake ) the fuel the correct mixture ratio . Small discrepancies in the amount of mixture . Fill the remaining quantity of gasoline . oil have a great bearing on the proportions of the fuel mixture • Mix ( shake ) the fuel mixture carefully before filling in the when mixing small amounts of fuel . machine's fuel tank . • Do not mix more than max . one month's supply of fuel . • If the machine is not used for a long period of time . the fuel tank should be emptied and cleaned . • This engine is certified to operate on unleaded gasoline . Gasoline NOTE [ Always use an oil - mixed quality gasoline ( at least 87 octane ) . If your machine is equipped with a catalytic converter , ( an unleaded , Fuelling oil mixed quality gasoline should always be used . A leaded gasoline will destroy the catalytic converter . 6 • This engine is certified to 6 operate on unleaded gasoline . • The lowest recommended octane rating is 87 . If you run the engine on lower octane rating than 87 so - called " knocking " can occur . This leads to an increased engine • Clean around the fuel temperature , which can cap . Contamination in result in a serious engine the tank can disrupt breakdown . operations . • When working at • Ensure that the fuel is continuous high revs a well mixed by shaking the higher octane rating is container before filling recommended . the tank . Min . 3 m i ( 10 ft ) • Two - stroke oil Gaso $ ine Oil 2 % ( 1 : 50 ) • For the best results use HUSQVARNA two - stroke oil , Lit . Lit . which has been specially developed for HUSQVARNA's 5 0,10 o small , two - stroke engines . Mixing ratio 1 : 50 ( 2 _ ) . 10 0,20 15 0,30 20 0,40 • Never use two - stroke oil intended for water cooled outboard US US gallon ft . oz motors , so - called outboard motor oil . 1 2 I / 2 2 1 / 2 6 I / 2 • Never use oil intended for four - stroke engines . 5 12 7 / 8 12 - English
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START AND STOP Warm engine Control before starting @ IGNITION : • Inspect the working area . Remove objects that can be Set the stop switch to the thrown . start position . • Check the blades . Never use blades that are dull , CHOKE : cracked or damaged . B Set the choke control in the • Check that the hedge choke position and then trimmer is in full back again to its original working order . Check position ( B ) that all nuts and bolts are In this way only the start tightened correctly . throttle is applied with no • Make sure the gearbox is lubricated correctly . See the choke . section " Lubricating the bladed ' . • Ensure the blades always stop when tile engine is idling . AIR PURGE : • Only use the machine for what it is intended for . Press the air purge • Ensure that the handle and safety functions are in order . diaphragm repeatedly until Never use a machine that lacks a part or has been modified fuel begins to fill the outside of the specifications . diaphragm . The diaphragm rmed not be completely Start and stop filled . Start Press the machine body against the ground using your left hand ( NOTE [ Do @ not use your foot ) . Grip the starter handle with your right hand and slowly pull the starter cord out until you feel some resistance , ( the starter hooks grip ) now quickly and powerfully pull the cord . Immediately pre . ss the choke control in when the engine fires and repeat until the Cold engine engine starts . When the engine starts , quickly apply @ IGNITION : full throttle and the start Set the stop switch to the throttle will automatically start position . disengage . CHOKE : NOTE ! Do not pull the starter cord out completely and do A Set the choke control in the not release the starter cord from the fully extended position . choke position ( A ) . This can damage the hedge trimmer . The choke position is also the automatic start throttle Stop position . The engine is stopped by AIR PURGE : switching the ignition off Press the air purge using the stop switch . diaphragm repeatedly until fuel begins to fill the diaphragm . The diaphragm need not be completely filled . English - 1 3
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MAINTENANCE Carburetor Basic setting • The carburetor is set to its basic setting when test run at the Your Husqvarna product has been designed and factory . The basic setting is richer than the optimal setting manufactured to specifications that reduce harmful and should be kept during the machine's first working emissions . hours . Thereafter the carburetor should be firmly adjusted . After your unit has been run 8q0 tanks of fuel the engine Fine adjustment should be carried out by a skilled has broken in . To ensure that your unit is at peak technician . performance and producing the least amount of harmful emissions after break in , have your authorized servicing NOTE ! If the blades move while the engine is idling the T - dealer , who has a revolution counter at his disposal , to adjust screw should be turned anti - clockwise until the blades stop . your carburetor for optimum operating conditions . Recommended idling speed is : 2 700 rpm . Recommended max . speed : See " technicaldata ' : i ! ¸ iiiii ¸ ! ¸ iIiiiii ! i ! ! i ! i ! iiiiiii ! iiii ¸ ii ! ii ! iii ! iiii ¸ ii ! ! ¸ iiiiii ! ! iiii ! iiiiiil ¸ i ! iii ! ii ! ! ; iiiiiiiiii'ii ! ii ! iii ! iiiiiiliii ! iiii ! iiii ! iiiiiii ! ! ii ! iiiiiiiiiii ! ! ill ! i ! iiiii ! ! ! i ! iiiii ! i ! ! i ! iiii ! i ! iii ! iiliiiiiiiiii / ! \ Operation . . . . . _ dj _ i _ • The carburetor governs the engine's speed via the Fine adjustment throttle , Air / fuel is mixed • When the machine has been " run - in " the carburetor should in the carburetor , The be finely adjusted . The fine adjustment should be carried air / fuel mixture is out by qualified person . First adjust the L - jet , then the H L \ adjustable . To take idling screw T and then the H - jet . \ advantage of the engine's \ optimal output the Conditions adjustment must be • Before any adjustments are made the airfilter should be clean correct . and the airfilter cover fitted . Adjusting the carburetor while a dirty airfilter is in use will result in a leaner mixture when • The setting of the the filter is finally cleaned . This can give rise to serious carburetor means that engine damage . the engine is adapted to • Carefully turn the L and H needle to the mid point between local conditions , for fully turned in and fully turned out . . example , tile climate , • Do not attempt to adjust the needles beyond the stops as altitude , gasoline and the damage can occur . type of 2 - stroke oil . • Now start the machine according to the starting instructions and run it warm for 10 minutes . • The carburetor is equipped with three adjustment possibili - NOTE ! If the blades move , the T screw should be turned ties : counter - clockwise until the blades stop . H = High speed needle L = Low speed needle T = Idle speed adjuster screw Low speed needle L L Try to find the highest idling • The fuel quantity in re . lation to the air flow permitted by \ speed , turning the low speed the throttle opening is adjusted using the L and H - needles . needle L clockwise Turning the needles clockwise gives a leaner fuel mixture respectively counter - ( less fuel ) and turning them anti - clockwise gives a richer clockwise . When the highest fuel mixture ( more fuel ) . A leaner mixture gives high revs speed has been found , turn while a richer mixture give less revs . the low speed needle L 1 / 4 turn counter - clockwise . • The T - screw regulates the position of the throttle while the NOTE ! If the blades move engine is idling . Turning the screw clockwise gives a higher when the engine is idling , idling speed while turning it anti - clockwise gives a lower turn the idling speed screw T idling speed . counter - clockwise until the blades stop . \ 14 - English
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MAINTENANCE Adjusting the idle speed , T Correctly adjusted carburetor When the carburettor is correctly adjusted the machine will Adjust the idling speed with accelerate without hesitation and the engine will splutter a the screw T , if it is necessary little at maximum speed . The blades must not move when to readjust . First turn the the engine is idling . If the low speed needle is set for too lean idle speed adjusting screw T T a mixture it can cause starting problems and poor accelera _ clockwise until the blades lion . stalt moving . Then turn the A too lean adjusted high speed needle H gives lower power = screw anti - clockwise until less capacity , bad acceleration and / or damage to the engine . the blades stop . The idle A too rich adjustment of the two speed needles L and H gives speed is correctly adjusted acceleration problems or too low working speed . when the engine runs smoothly in every positiorL There should also be a good margin to the rpm at which the blades start to move . WARNING ! Contact your dealer / setwice workshop if the idle speed setting cannot be adjusted so that the blades stop . Do not use the machine until it has been properly adjusted or repaired . High speed needle H H The high speed needle affects the machirm's power , speed , temperature and fuel consumption . A too lean adjustment on the high speed needle H ( the high speed needle H is screwed in too much ) gives a too high speed resulting in engine damage . Do not allow the engine to run at full speed for more than 10 seconds . Apply full throttle and turn the high speed needle H slowly anticlockwise until the engine runs unevenly . The high speed needle H is then turned slowly clockwise a little until the engine runs smoothly . Note the engine should be run unloaded when adjusting the high speed needle . The high speed needle is adjusted correctly when the machine " splatters " a little . If the machine smokes heavily at the same time as it ° splatters " heavily the adjustment is too rich . NOTE ! For optimum setting of the carburetor , contact a qualified servicing dealer who has a revolution counter at his disposal . English - 15
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MAINTENANCE Muffler Cooling system NOTE ! To maintain as low opera - Some mufflers are fitted with a catalytic converter . See ting temperature as possible " Technicald _ ta " to see whether you clearing saw is fitted with a the engine is equipped with catalytic converter . a cooling system . 1 The muffler is designed to The cooling system consists dampen the noise level arid of : to direct the exhaust fumes 1 . An air intake on the away from the user . The starter uniL exhaust fumes are hot and 2 . Cooling fins on the can contain sparks , which flywheel . can result in fire if the 3 . Cooling fins on the exhaust fumes are directed cylinder towards a dry arid 4 . Cylinder cover ( leads inflammable material . Some cold air onto the cylin - mufflers are equipped with a der ) . special spark arrest screerL If your machine is fitted with Clean the cooling system this type of screen it should using a brush at least once a be cleaned regularly . This is week , in difficult conditions done using a wire brush . On more often . mufflers without a catalytic converter the screen should A dirty or blocked cooling system leads to the engine be cleaned weekly , or overheating resulting in damage to the cylinder and piston . replaced if necessary . On mufflers fitted with a catalytic converter the screen should be checked Spark plug arid cleaned monthly . If the The condition of the spark plug is affected by : screen is damaged it should • An incorrect carburetor setting . be replaced . If the screen is • An incorrect fuel mixture ( too much or faulty oil ) . frequently blocked , this can • A dirty air filter . be a sign that the function These factors cause deposits on the spark plug electrode that of the catalytic converter is may result in malfunction or starting difficulties . impaired . Contact your dealer to inspect the muffler . If the machine is low on A blocked screen will cause power , difficult to start or the engine to overheat runs poorly while idling resulting in damage to the always check the spark plug cylinder arid pistorL Also see first before taking other under " _ aintenang _ ' _ action . NOTE [ If the spark plug is dirty , _ 0,5 mm Never use a machine with a clean it and at the same time defective muffler . check that the electrode gap is 0.5 mm . The 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 . 16 - English
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MAINTENANCE Air filter Gearbox The air filter ( A ) should be There isa grease nipple ( A ) cleaned regularly removing on the gearbox . Use a grease dust and dirt to avoid : gun to top up with grease . This should be carried out A • carburetor malfunction after approximately every 20 • starting problems working hom _ . Use • reduced engine power Husqvarna special grease , No . 503 98 96 - 01 . • unnecessary wear to engine parts • abnormal fuel consump - Note that the gearbox must tion not be filled completely with grease . The grease Clean the filter after every expands as the machine 25 hours or more regularly heats up during operation . if operating conditions are If the gearbox was exceptionally dusty . completely filled with grease it could damage the seals and lead to leakage . Cleaning the air filter Dismantle the air filter cover ( B ) and remove the air filter . The lubricant in the gearbox Wash in clean , warm soapy water . Ensure that the filter is dry does not normally need to be before refitting . replaced other than with An air filter used for a long period of time can never be cleaned repair . completely . Therefore it is necessary to replace the filter from time to time with a new filter . 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 the section on " Oiling the air filteF . Lubrication Always lubricate the blade runners with special grease Oiling the air filter 531 00 60 - 74 ( UL 2001 ) Always use HUSQVARNA before use . filter oil , order no . 503 47 73 - 01 . Tile filter oil contains a solvent to make it spread evenly through the filter . You should therefore avoid skin contact . Put the filter in a plastic bag and the pour the filter oil over it . Knead the plastic bag to distribute the oil . Squeeze the excess oil out of the filter inside the plastic bag and pour off the excess before fitting the filter on the machine . Never use com - mon engine oil . This would drain through the filter quite quickly and collect in the bottom . English - 1 7
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MAINTENANCE Maintenance schedule Below you will find some general mair _ termnce instructions . Daily maintenance Check throttle trigger and throttle trigger lockout function . Check stop switch function . Check that blade does not move at idling . Clean the exterior of the machine . Check that the harness is undamaged . Check that the blade is properly centred , sharp , and without cracks . • Check the hand guard for cracks and chips or damage . Replace if necessary . • Check that tile blade screws are sufficiently tightened ( See the section " Control , maintenance and service of the machine's safety equipment _ ) . • Make sure that the blade transport guard is undamaged and that it can be securely fitted . • Check that nuts and screws are sufficiently tightened . Weekly maintenance • Check the starter , especially cord and return spring . • Make sure that the vibration damping elements are not damaged . • Clean tile carburetor area . • Clean the exterior of the spark plug . • Remove it and check the electrode gap . • Adjust it to 0,5 mm ( . 020 " ) , or change the spark plug . • Clean the cooling fins on the cylinder and check that the air intake at the starter is not clogged . • Fill the gearbox with grease . This should be carried out after approximately every 20 working hours . • Clean tile air filter . • Clean or replace the muffler's spark arrest screen ( not on mufflers with a catalytic converter ) . Monthly maintenance • Clean the fuel tank . • Clean tile exterior of the carburetor and the space around it . • Clean the fan and the space around it . • Check fuel hose for cracks or other damage . Change if rmcessary . • Change fuel filter in fuel tank . • Check clutch , clutch spring and clutch drum for wear . Change if necessary . • Check electrical wires and connections . • Change tile spark plug . • Change the airfilter . • Check and clean the muffler's spark arrest screen if necessary ( only mufflers with a catalytic converter ) . 18 - English
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TECHNICAL DATA Technical data 325HS75 325HS99 Engine 1,50 / 24,5 1,50 / 24,5 Cylinder capacity , cu in / cm 3 1,34 / 34 1,34 / 34 Cylinder bore , inch / mm 1,06 / 27 1,06 / 27 Stroke length , inch / mm 2 700 2 700 Idling speed , rpm 11 000 11 000 Recommended max . speed rpm 0,9 kW / 9 O00r / min 0,9 kW / 9 O00r / min Max . engine output , acc . to ISO 8893 Yes Yes Catalytic converter muffler Yes Yes Speed - regulated ignition system Ignition system Walbro MB 20 Walbro MB 20 Manufacturer / type of igriitiori system Spark plug Champion RCJ 7Y Champion RCJ 7Y 0,0210,5 0,02 / 0,5 Electrod gap , inch / mm Fuel lubrication system Zama CIQ Zama C1Q Marmfacturer / type of carburetor 1,0610,5 1,06 / 0,5 Fuel tank capacity , US pintJlitres Weight 12,1 / 5,5 12,8 / 5,8 Weight without fuel , LBS / kg Noise levels Equivalent noise pressure levels at the user's ear , measured acc . to prEN 96 97 31806 and ISO 7917 , dB ( A ) : Equivalent noise output levels measured acc . to prEN 31806 arid ISO 10884 , 104 104 dB ( A ) : Vibration levels Vibration levels on the handles measured acc . to prEN 31806 arid ISO 7916 , m / s 2 2,0 / 2,9 2,212,5 Idling , rear / front handles : 1,7 / 4,2 2,4 / 4,0 Max . speed , rear / front handles : Blades 750 990 Length , ram : 4 490 4 490 Blade speed at 9 000 rpm , Cut / min : English - 19
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EMISSION CONTROL WARRANTY STATEMENT WHAT IS COVERED YOUR WARRANTY RIGHTS AND REPAIR OR REPLACEMENT OF PARTS OBLIGATIONS Repair or replacement of any warranted part will be perfor - The EPA ( The US Environmental Protection Agency ) , med at no charge to the owner at an approved Husqvarna Environment Canada and Husqvama Forest & Garden are Forest & Garden servicing dealer . If you have any questions pleased to explain the emissions control system warranty on regarding your warranty rights and responsibilities , you your 1999 and later small nonroad engine . In U . S . , new small should contact your nearest authorized servicing dealer or nonroad engines must be designed , built and equipped to call Husqvarna Forest & Garden at 1 _ 800 - 487 - 5963 . meet the federal stringent anti - smog standards . Husqvarna WARRANTY PERIOD Forest & Garden must warrant the emission control system Any warranted part which is not scheduled for replacement on your small nonroad engine for the periods of time listed as required maintenance , or which is scheduled only for below provided there has been no abuse , neglect or improper regular inspection to the effect of " repair or replace as maintenance of your unit . Your emission control system necessary " shall be warranted for 2 years . Any warranted includes Parts such as the carburetor and the ignition part which is scheduled for replacement as required system . maintenance shall be warranted for the period of time up to Where a warrantable condition exists , Husqvarna Forest & the first scheduled replacement point for that part . Garden will repair your small nonroad engine at no cost to DIAGNOSIS you . Expenses covered under warranty include diagnosis . The owner shall not be charged for diagnostic labor which parts and labor . leads to the determination that a warranted part is defective . if the diagnostic work is performed at an approved MANUFACTURER'S WARRANTY Husqvarna Forest & Garden servicing dealer . CONSEQUENTIAL DAMAGES COVERAGE Husqvarna Forest & Garden may be liable for damages to The 1999 and later small nonroad engines are warranted for other engine components caused by the failure of a two years . If any emission related part on your engine ( as warranted part still under warranty . listed above ) is defective , the part will be repaired or replaced by Husqvarna Forest & Garden . WHAT IS NOT COVERED All failures caused by abuse , neglect or improper OWNER'S WARRANTY maintenance are not covered . RESPONSIBILITIES ADD - ON OR MODIFIED PARTS As the small nonroad engine owner , you are responsible for The use of add - on or modified parts can be grounds for the performance of the required maintenance listed in your disallowing a warranty claim . Husqvarna Forest & Garden is Operator's Manual . Husqvama Forest & Garden not liable to cover failures of warranted parts caused by the recommends that you retain all receipts covering use of add - on or modified parts . maintenance on your small nonroad engine , but Husqvarna Forest & Garden cannot deny warranty solely for the lack of HOW TO FILE A CLAIM receipts or for your failure to ensure the performance of all If you have any questions regarding your warranty rights and scheduled maintenance . responsibilities , you should contact your nearest authorized As the small nonroad engine owner , you should , however , be servicing dealer or call Husqvama Forest & Garden at aware that Husqvarna Forest & Garden may deny you 1 _ 800 - 487 - 5963 , warranty coverage ifyour small nonroad engine or a part of it has failed due to abuse , neglect , improper maintenance , unapproved modifications or the use of parts not made or WHERE TO GET WARRANTY SERVICE approved by the original equipment manufacturer . Warranty services or repairs shall be provided at all You are responsible for presenting your small nonroad Husqvarna Forest & Garden authorized servicing dealers . engine to a Husqvarna Forest & Garden authorized servicing dealer as soon as a problem exists . The warranty repairs MAINTENANCE , REPLACEMENT AND should be completed in a reasonable amount of time , not to REPAIR OF EMISSION - RELATED PARTS exceed 30 days . If you have any questions regarding your warranty rights and Any Husqvarna Forest & Garden approved replacement part responsibilities , you should contact your nearest authorized used in the performance of any warranty maintenance or servicing dealer or call Husqvarna Forest & Garden at 1 _ 800 - repairs on emission - related parts , will be provided without 487 - 5963 . charge to the owner if the part is under warranty . WARRANTY COMMENCEMENT DATE EMISSION CONTROL WARRANTY The warranty period begins on the date small nonroad engine PARTS LIST is delivered . 1 . Carburetor and internal parts 2 . Intake pipe , airfilter holder and carburetor bolts . LENGTH OF COVERAGE 3 . Airfilter and fuelfilter covered up to maintainance schedule . Husqvarna Forest & Garden warrants to the initial owner and 4 . ignition System each subsequent purchaser that the engine is free from a ) Spark Plug , covered up to maintenance schedule defects in materials and workmanship which cause the failure b ) Ignition Module of a warranted part for a period of two years , 5 . Muffler with catalytic converter . MAINTENANCE STATEMENT The owner is responsible for the performance of all required maintenance , as defined in the operator's manual . 20 - English
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