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        Husqvarna 125BT, 141B, 155B, 165BT Blower User Manual
         Contents
1.   procedures can be done at half throttle  A lower throttle  means less noise and less dust  and it is also easier to  keep control over the rubbish collected together moved     English          SAFETY INSTRUCTIONS    Use a rake or a brush to release rubbish stuck to the  ground     Hold the opening of the blower as close to the ground as  possible     Observe your surroundings  If anyone approaches your  work area  setthe throttle control to the lowest throttle until  the person is at a safe distance  Direct the blower away  from people  animals  play areas  and cars etc     Clean up afterwards  Make sure that you have not blown  rubbish into someone s garden     Basic safety rules    No unauthorised persons or animals may be present in  the working area  which is 10 metres     The powerful currents of air can move objects at such a  speed that they can bounce back and cause serious eye  injuries        Do not direct the air jet towards people or animals     Stop the engine before assembling or dismantling  accessories or other parts     Do not use the machine in bad weather  such as dense  fog  heavy rain  strong wind  intense cold  etc  Working in  bad weather is tiring and can lead to dangerous  conditions  e g  slippery surfaces     Make sure you can move and stand safely  Check the area  around you for possible obstacles  roots  rocks  branches   ditches  etc   in case you have to move suddenly  Take  great care when working on sloping ground     Never put the machine d
2.  H  Husqvarna          Operators manual    125BT 141B 135B    165BT    Please read the operator s manual carefully and make sure you understand    the instructions before using the machine  English       KEY TO SYMBOLS    Symbols    WARNING  The machine can be a dangerous  tool if used incorrectly or carelessly  which can  cause serious or fatal injury to the operator or  others     Please read the operator s manual carefully  and make sure you understand the  instructions before using the machine     Always wear   e Approved hearing protection    e Protective goggles or a visor    This product is in accordance with applicable  EC directives     Always wear approved protective gloves     Wear sturdy  non slip boots     The blower can forcibly throw objects that  can bounce back  This can result in  serious eye injuries     people or animals come closer than 10   metres  When several operators are   working at the same site a safety   distance of at least 10 metres must be in effect     AN  The blower operator must ensure that no    Noise emission to the environment according   to the European Community   s Directive  The ee  machine   s emission is specified in chapter   Technical data and on label     dB    2     English          Other symbols decals on the machine refer to special  certification requirements for certain markets     Switch off the engine by moving the stop  switch to the STOP position before carrying  out any checks or maintenance        Always wear approved
3.  Huskvarna  Sweden  tel  446 36 146500  declare under sole responsibility that the blowers  Husqvarna141B and 155 from 2000 s serial numbers and onwards  the year is clearly stated in plain text on the type plate with  subsequent serial number   are in conformity with the following standards or other normative documents following the provisions  in the COUNCILS DIRECTIVES     of June 22  1998 relating to machinery    98 37 EC  annex IIA   of May 3  1989    relating to electromagnetic compatibility    89 336 EEC  and applicable supplements   of May 8  2000    relating to the noise emissions in the environment    2000 14 EC     For information relating to noise emissions  see the chapter Technical data  The following standards have been applied  EN292 2   CISPR 12 1997  EN ISO 11806     SMP Svensk Maskinprovning AB  Fyrisborgsgatan 3  SE 754 50 Uppsala  Sweden  has performed voluntary type examination on  behalf of Husqvarna AB  The certificates are numbered  SEC 00 759   141B  SEC 00 760   155B    Huskvarna January 3  2002    iden    Bo Andr  asson  Development manager    18     English    TECHNICAL DATA    EC declaration of conformity     Applies to Europe only     We  Husqvarna AB  S 561 82 Huskvarna  Sweden  tel  446 36 146500  declare under sole responsibility that the blowers  Husqvarna 125BT and 165BT from 2004 s serial numbers and onwards  the year is clearly stated in plain text on the type plate  with subsequent serial number   are in conformity with the following sta
4.  See instructions  under the heading Personal protective equipment     Never use a machine that has been modified in any way  from its original specification     Never use a machine that is faulty  Carry out the checks   maintenance and service instructions described in this  manual  Some maintenance and service measures must be  carried out by trained and qualified specialists  See  instructions under the heading Maintenance     All covers and guards must be fitted before starting  Make  sure the spark plug cap and HT lead are not damaged   Otherwise you could get an electric shock     The blower operator must ensure that no people or animals  come closer than 10 metres  When several operators are  working at the same site a safety distance of at least 10  metres must be in effect        Starting    Never start the machine indoors  Exhaust fumes can be  dangerous if inhaled     Observe the surroundings and ensure that no people or  animals can come into contact with the blower     Place the machine on the ground  press the machine body  against the ground with your left hand  NOTE  Not with  your foot   Then grasp the starter handle with your right  hand and pull the cord        Fuel safety    inp    Always use a fuel container with an anti spill valve     Never refuel the machine while the engine is running   Always stop the engine and let it cool for a few minutes  before refuelling     Make sure there is plenty of ventilation when refuelling or  mixing fuel  petrol and 2 
5.  protective gloves     Regular cleaning is required     Visual check     Ra  Ea    Protective goggles or a visor must be worn     N  R    CONTENTS       Contents Note the following before starting   KEY TO SYMBOLS Please read the operator s manual carefully   SV TID aaa a a 2 Long term exposure to noise can result in permanent hearing  CONTENTS impairment  So always use approved hearing protection   COMENS a EA 3  ae ae saa a ai AAA 3 WARNING  Under no circumstances may the   design of the machine be modified without   Personal protective equipment                    aaa  4 the permission of the manufacturer  Always  Machine s safety equipment                    asaskan  4 use genuine accessories  Non authorized  Checking  maintaining and servicing the machine s modifications and or accessories can result  safety equipment                   aaa  5 in serious personal injury or the death of the  General safety precautions                    eek 6 operator or others   General working instructions                    esa  7  WHAT IS WHAT  WARNING  A blower is a dangerous tool if  Whats WAAL  en ena a NA endre an a 9 used carelessly or incorrectly and can cause  WHAT IS WHAT  serious  even fatal injuries  It is extremely  Whats what P ann D An Raed ANN 10 Important that you read and understand the  ASSEMBLY contents of this Operator s manual   Assembly of the blower                 ee n ena aaa  11 Husqvarna AB has a policy of continuous product  FUEL HANDLING development and ther
6.  storage     WARNING  Take care when handling fuel     Bear in mind the risk of fire  explosion and  inhaling fumes        Quick release   141B  155B  165BT     At the front is an easily accessible  quick release  Use this if  the engine catches fire or in any other emergency situation  that requires you to free yourself from the machine and  harness     e Pull out the red strap        e The hip strap and one shoulder strap will then be  automatically released at the same time and the harness  and engine unit will slide to the ground     Spreading the load on your shoulders    A well adjusted harness and machine makes work much  easier  Adjust the harness for the best working position   Tension the side straps so that the weight is evenly distributed  across both shoulders        General working instructions    IMPORTANT  This section considers basic safety rules  when working with blowers  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        Show consideration to persons in your surroundings by  avoiding using the machine at unsuitable times  such as late  in the evening or early in the morning  Read through and  follow the simple directions so that you disturb your  Surroundings as little as possible     e Use the blower with the lowest possible throttle  It is  seldom necessary to use full throttle  and many work
7. 0 5 0 6 0 6 0 6   Fuel and lubrication system   Manufacturer type of carburettor Walbro  membran Walbro  membran Walbro  membran Walbro  membran  Fuel tank capacity  litre 0 5 1 6 2 1 2 2   Weight   Weight without fuel  cutting attachment and   guard  kg 5 0 9 9 10 2 12 3    Noise emissions   see note 1     Sound power level  measured dB A  101 3 103 5 106 7 104 6  Sound power level  guaranteed Lwa dB A  102 104 107 112  Noise levels     see note 2     Equivalent noise pressure level at the operator s  ear  measured according to EN ISO 11806 and  ISO 7917  dB A   min  max   92 89 92 97    Vibration levels    Vibration levels at handles  measured according  to EN ISO 11806 and ISO 7916  m s     At idle  left right handles    1 2 1 2 1 2 1 2 1 0 1 2 1 2  At max  speed  left right handles    1 2 1 2 1 2 1 2 1 7 1 2 1 2    Note 1  Noise emissions in the environment measured as sound power  Lwa  in conformity with EC directive 2000 14 EC     Note 2  Equivalent sound pressure level is calculated as the time weighted energy total for sound pressure levels under various  working conditions with the following time distribution  1 2 idling and 1 2 max speed     NOTE  The noise pressure level at operator   s ear and vibrations on the handles are measured with all the approved cutting  attachments for the machine  The table indicates the lowest and highest values     English     17    TECHNICAL DATA    EC declaration of conformity     Applies to Europe only     We  Husqvarna AB  S 561 82
8. ND STOPPING    Starting and stopping    WARNING  Always move the machine away  from the refuelling area before starting   Place the machine on a flat surface     Make sure no unauthorised persons are in  the working area  otherwise there is a risk of    serious personal injury  The safety distance  is 10 metres     The machine may only be started in its  complete design  If the machine is started  without all the guards fitted there is a risk of  personal injuries     Cold engine  Ignition     Set the stop switch to the start position        Choke  Set the choke control in the choke position                 Air purge  Press the air purge diaphragm repeatedly until fuel  begins to fill the diaphragm  The diaphragm need not be  completely filled                    Warm engine    Use the same starting procedure as for a cold engine but  without setting the choke control in the choke position        Starting    Hold the body of the machine on the ground using your left  hand  CAUTION  Not with your foot       Grip the starter handle  slowly pull out the cord with your right  hand until you feel some resistance  the starter pawls grip    now quickly and powerfully pull the cord        Resetthe choke when the engine fires  repeat pulling the cord  until the engine starts  Never twist the starter cord around  your hand     CAUTION  Do not pull the starter cord all the way out and do  not let go of the starter handle when the cord is fully extended   This can damage the machine     S
9. afety equipment     WARNING  Mufflers fitted with catalytic  converters get very hot during use and  remain so for some time after stopping  This    also applies at idle speed  Contact can result  in burns to the skin  Remember the risk of  fire           WARNING  Bear in mind that     Engine exhaust fumes contain carbon  monoxide  which can cause carbon  monoxide poisoning  For this reason you  should not start or run the machine indoors   or anywhere that is poorly ventilated     The exhaust fumes from the engine are hot    and may contain sparks which can start a  fire  Never start the machine indoors or near  combustible material     WARNING  The inside of the muffler contain  chemicals that may be carcinogenic  Avoid  contact with these elements in the event of a  damaged muffler     Checking  maintaining and servicing  the machine s safety equipment    WARNING  All servicing and repair work on  the machine requires special training  This is  especially true of the machine s safety  equipment  If your machine fails any of the  checks described below you must contact  your service agent  When you buy any of our  products we guarantee the availability of  professional repairs and service  If the  retailer who sells your machine is not a  servicing dealer  ask him for the address of  your nearest service agent        WARNING  Never use a machine with faulty  safety equipment  The machine s safety  equipment must be checked and maintained  as described in this section  If yo
10. e will run smoothly  in every position     Rec  idle speed See the Technical data section     Muffler       m      The muffler is designed to reduce the noise level and to direct  the exhaust gases away from the operator  The exhaust gases  are hot and can contain sparks  which may cause fire if  directed against dry and combustible material           AA NV    WA  A ai    ORL    Some mufflers are equipped with a special spark arrest  screen  If your machine is fitted with this type of screen it  should be cleaned regularly  This 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       14     English    with a catalytic converter the screen should be checked and  cleaned monthly  If the screen is damaged it should be  replaced  If the screen is frequently blocked  this can be a  sign that the function of the catalytic converter is impaired           CAUTION  Never use a machine with a defective muffler   Cooling system  mio    To keep the working temperature as low as possible the  machine is equipped with a cooling system                    SN                 or ee              CC          TE     s e  O            The cooling system consists of    1 Air intake on the starter    2 Fins on the flywheel    3 Cooling fins on the cylinder    4 Cylinder cover  directs cold air over the cylinder      Clean the cooling system with a brush once a week  more  often in demanding condit
11. ed with a two stroke engine  and must always been run using a mixture of petrol and two   stroke engine oil  Itis important to accurately measure the  amount of oil to be mixed to ensure that the correct mixture is  obtained  When mixing small amounts of fuel  even small  inaccuracies can drastically affect the ratio of the mixture     WARNING  Always ensure there is adequate    ventilation when handling fuel        Petrol    m      CAUTION     Always use a good quality petrol oil mixture  at least 90  octane   If your machine is equipped with a catalytic converter   see chapter on Technical data  always use a good quality  unleaded petrol oil mixture  Leaded petrol will destroy the  catalytic converter and it will no longer serve its purpose        e The lowest recommended octane rating is 90  If you run  the engine on a petrol with a lower octane rating than 90  this can cause knocking  This leads to an increased  engine temperature  which can result in serious engine  damage     e When working at continuous high revs a higher octane  rating is recommended     Two stroke oil    e For best results and performance use HUSQVARNA two   stroke oil  which is specially formulated for our two stroke  engines  Mixture 1 50  2       e If HUSQVARNA two stroke oil is not available  you may  use another two stroke oil of good quality that is intended  for air cooled engines  Contact your dealer when selecting  an oil  Mixing ratio 1 33  3       e Never use two stroke oil intended for wa
12. efore reserves the right to modify the  T E E E A E AE E aa 12 design and appearance of products without prior notice   FUEN senn a aa 12  STARTING AND STOPPING  Starting  and SIOpDING see A a ad nad ales eats 13  MAINTENANCE  Se AAA A A Aa 14  NI UN pcee theta teceetute tate ahanan dace aanensdadecgechcusaceanemee ERS 14  COGIING SYSTEM  A a A ede a a oren Rate 14  SPAK AAA A AAA AN 15  AIA A en a An 15  Maintenance schedule  nuosmeesrrrressrrrrrerrrrrrrrnerrrrrrrnrr aaa  16  TECHNICAL DATA  Technical dala asbra Ann AA AAA DAS AA A ia ii 17  EC declaration of conformity                     aaa  18  EC declaration of conformity                     aaa  19    English     3    SAFETY INSTRUCTIONS    Personal protective equipment    WARNING  You must use approved personal  protective equipment whenever you use the  machine  Personal protective equipment  cannot eliminate the risk of injury but it will  reduce the degree of injury if an accident  does happen  Ask your dealer for help in  choosing the right equipment  Please read  the operator s manual carefully and make  sure you understand the instructions before  using the machine     WARNING  Listen out for warning signals or  shouts when you are wearing hearing  protection  Always remove your hearing  protection as soon as the engine stops     e Gloves should be worn when necessary        e Wear hearing protection that provides adequate noise  reduction        e Always wear approved eye protection  If you use a visor  then yo
13. ine failure  Stop the engine and  remove the object        ua  RAW A   5        POS  JA          Be aware of the wind direction  Work with the wind to  make your work easier     Using the blower to move large piles is time consuming  and creates unnecessary noise     WHAT IS WHAT        What is what     1 Spark plug 8 Handlebar   2 Choke control 9 Blow pipe   3 Air filter 10 Throttle control   4 Starter handle 11 Stop switch   5 Fueltank 12 Throttle adjuster   6 Harness 13 Safety strap   7 Muffler 14 Operator s manual    English     9    WHAT IS WHAT              What is what     1 Spark plug 7 Muffler   2 Choke control 8 Blow pipe   3 Air filter 9 Throttle control   4 Starter handle 10 Stop switch   5 Fuel tank 11 Throttle adjuster  6 Harness 12 Operator   s manual    10     English    ASSEMBLY    Assembly of the blower    fd               p nd  IV p H        W  SA              WW       1 Connect the flexible hose  A  to the fan   s outlet tube  B  with a hose clamp    Connect the operating tube  C  to the flexible hose with a hose clamp    Fit the control handle  D  on the operating tube  C     Fit the handlebar  E  on the operating tube and tighten the screw  F    141B  155B  165BT     ao A O N    Connect the intermediate tube  G  and air nozzle  H   Push the tubes together and turn them so that they lock together     CAUTION  The operating tube can be turned round its axis  to direct the air jet     English     11    FUEL HANDLING    Fuel    CAUTION  The machine is equipp
14. ions  A dirty or blocked cooling  system results in the machine overheating which causes  damage to the piston and cylinder     MAINTENANCE    Spark plug    To    The spark plug condition is influenced by   e Incorrect carburettor adjustment     e An incorrect fuel mixture  too much or incorrect type of  oil      e A dirty air filter     These factors cause deposits on the spark plug electrodes   which may result in operating problems and starting  difficulties     If the machine is low on power  difficult to start or runs poorly  at idle speed  always check the spark plug first before taking  any further action  If the spark plug is dirty  clean it and check  that the electrode gap is 0 5 0 6 mm  The spark plug should  be replaced after about a month in operation or earlier if  necessary        CAUTION  Always use the recommended spark plug type     Use of the wrong spark plug can damage the piston cylinder     Air filter    The air filter must be regularly cleaned to remove dust and dirt  in order to avoid     e Carburettor malfunctions   e Starting problems   e Loss of engine power   e Unnecessary wear to engine parts   e Excessive fuel consumption     Clean the filter every 25 hours  or more regularly if conditions  are exceptionally dusty        Cleaning the air filter    Remove the air filter cover and take out the filter  Wash it clean  in warm  soapy water     Ensure that the filter is dry before refitting it     An air filter that has been in use for a long time cann
15. lease   141B  155B  165BT     At the front is an easily accessible  quick release  Use this if  the engine catches fire or in any other emergency situation  that requires you to free yourself from the machine and  harness        SAFETY INSTRUCTIONS    Vibration damping system    Your machine is equipped with a vibration damping system  that is designed to minimize vibration and make operation  easier     The machine s vibration damping system reduces the transfer  of vibrations     WARNING  Overexposure to vibration can  lead to circulatory damage or nerve damage  in people who have impaired circulation   Contact your doctor if you experience  symptoms of overexposure to vibration     Such symptoms include numbness  loss of  feeling  tingling  pricking  pain  loss of  strength  changes in skin colour or  condition  These symptoms normally appear  in the fingers  hands or wrists  The risk  increases at low temperatures        Muffler    The muffleris designed to keep noise levels to a minimum and  to direct exhaust fumes away from the user        In countries that have a warm and dry climate there is a  significant risk of fire  We therefore fit certain mufflers with a  spark arrestor mesh  Check whether the muffler on your  machine is fitted with this kind of mesh        For mufflers itis very important that you follow the instructions  on checking  maintaining and servicing your machine  See  instructions under the heading Checking  maintaining and  servicing the machine s s
16. ndards or other normative documents following the  provisions in the COUNCILS DIRECTIVES     of June 22  1998    relating to machinery    98 37 EC   of May 3  1989    relating to electromagnetic compatibility    89 336 EEC  and applicable supplements   of May 8  2000    relating to the noise emissions in the environment    2000 14 EC     For information relating to noise emissions  see the chapter Technical data  The following standards have been applied  EN292 2   CISPR 12 1997  EN ISO 11806     Huskvarna January 5  2004    EPA AOA    Bo Andr  asson  Development manager    English     19    Husqvarna    www husqvarna com    1140211 26       2004 01 15    
17. ot be  cleaned completely  The filter must therefore be replaced with  a new one at regular intervals  A damaged air filter must  always be replaced     If the machine is used in dusty conditions the air filter should  be soaked in oil  See instructions under the heading Oiling the  air filter     Oiling the air filter    Always use HUSQVARNA filter oil  art  no  531 00 92 48  The  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 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 to the machine  Never use  common engine oil  This would drain through the filter quite  quickly and collect in the bottom           English     15    MAINTENANCE    Maintenance schedule    Below you will find some general maintenance instructions  If  you need further information please contact your service  workshop     Daily maintenance    O Ooi A W N       Clean the outside of the machine    Check that the throttle control functions safely   Check that the stop switch works correctly   Clean the air filter  Replace if necessary   Check that nuts and screws are tight     Check that there are no fuel leaks     Weekly maintenance       Check the starter and starter cord     Check that the vibration damping elements are not  damaged     Clean the outside of 
18. own with the engine running  unless you have it in clear sight     Engine exhaust fumes contain carbon monoxide  which  can cause carbon monoxide poisoning  For this reason  you should not start or run the machine indoors  or  anywhere that is poorly ventilated     The blower must not be used while on a ladder or  scaffolding                          CAUTION  Do not use the machine unless you are able to  call for help in the event of an accident     8     English    Basic working techniques    Adjust the harness so that the machine is easy to carry     WARNING  Watch out for thrown objects   Always wear eye protection  Stones   rubbish  etc  can be thrown up into the eyes  causing blindness or serious injury  Keep    unauthorised persons at a distance   Children  animals  onlookers and helpers  should be kept outside the safety zone of 10  m  Stop the machine immediately if anyone  approaches        WARNING  Always stop the engine before  cleaning        The speed of the air jet is controlled with the throttle   Select the speed that best suits the application  To avoid  holding your finger on the throttle all the time when using  the blower  the required throttle can be set with the throttle  adjuster  D   Full throttle is obtained when the throttle  adjuster is pushed in fully        Make sure that the air intake is not blocked by leaves or  rubbish  This will reduce the machine s air blowing  Capacity and increase the engine   s working temperature   which can lead to eng
19. stroke oil      Avoid all skin contact with fuel  Fuel is a skin irritant and  may even cause skin changes     SAFETY INSTRUCTIONS    e Move the machine at least 3 m from the refuelling point  before starting it     Adjusting the harness    WARNING  The harness must always be  worn when working with the machine   Failure to do so means you will be unable to    manoeuvre safely and this can result in  injury to yourself or others  Never wear a  harness with a defective quick release        e Never start the machine       If you have spilt fuel on it  Wipe off the spillage and  allow remaining fuel to evaporate       If you have spilt fuel on yourself or your clothes   change your clothes  Wash any part of your body that  has come in contact with fuel  Use soap and water       Ifthe machine is leaking fuel  Check regularly for leaks  from the fuel cap and fuel lines     Transport and storage    e Store and transport the machine and fuel so that there is  no risk of any leakage or fumes coming into contact with  sparks or naked flames  for example  from electrical  machinery  electric motors  electrical relays switches or  boilers     e When storing and transporting fuel always use approved  containers intended for this purpose     e When storing the machine for long periods the fuel tank  must be emptied  Contact your local petrol station to find  out where to dispose of excess fuel     e Ensure the machine is cleaned and that a complete  service is carried out before long term
20. ter cooled  outboard engines  sometimes referred to as outboard oil     e Never use oil intended for four stroke engines     Two stroke oil  litre    a C Ga  woo fpa    po  w fpo p       w fown oo    12     English    Mixing  e Always mix the petrol and oil in a clean container intended  for fuel     e Always start by filling half the amount of the petrol to be  used  Then add the entire amount of oil  Mix  shake  the  fuel mixture  Add the remaining amount of petrol     e Mix  shake  the fuel mixture thoroughly before filling the  machine   s fuel tank        e Donot mix more than one month s supply of fuel at a time     e If the machine is not used for some time the fuel tank  should be emptied and cleaned     Fuelling          WARNING  Taking the following precautions   will lessen the risk of fire     Do not smoke or place hot objects near fuel   Always shut off the engine before refuelling     Always stop the engine and let it cool for a  few minutes before refuelling     When refuelling  open the fuel cap slowly so  that any excess pressure is released gently     Tighten the fuel cap carefully after refuelling     Always move the machine away from the  refuelling area before starting        e Move the machine at least 3 m from the refuelling point  before starting it        e Clean the area around the fuel cap  Contamination in the  tank can cause operating problems     e Ensure that the fuel is well mixed by shaking the container  before filling the tank     STARTING A
21. the spark plug  Remove it and check  the electrode gap  Adjust the gap to 0 5 0 6 mm or replace  the spark plug     Clean the cooling fins on the flywheel     Clean or replace the spark arrestor mesh on the muffler   only applies to mufflers without a catalytic converter      Clean the carburettor compartment     Clean the cooling fins on the cylinder and check that the  air intake near the starter is not blocked     16     English    Monthly maintenance       P me  I A  eel Al   S      i        3            I I       TN    gt   VT aN ez  Ae fs  D    Clean the fuel tank    Clean the outside of the carburettor and the space around  it    Clean the fan and the area around it     Check the fuel filter and the fuel hose  Replace if  necessary     Check all cables and connections   Replace the spark plug     Check and clean the spark arrestor mesh on the muffler   only applies to mufflers fitted with a catalytic converter      TECHNICAL DATA    Technical data    Technical data 125BT 141B 155B 165BT   Engine   Cylinder displacement  cm  25 4 40 2 48 7 59 2   Cylinder bore  mm 34 40 44 47 1   Stroke  mm 28 32 32 34   Idle speed  rpm 3300 2500 2500 3000  Recommended max  speed  7800 7500 7500 7500   Max  engine output  acc  to ISO 8893  kW  rpm 0 7 7800 2 0 7500 2 2 7500 2 4 7500  Catalytic converter muffler No No No No   Ignition system   Type of ignition system Electronic Electronic Electronic Electronic  Spark plug NGK BPMR6A NGK BPMR 7A NGK BPMR 7A NGK BPMR 7A  Electrode gap  mm 
22. topping    The engine is stopped by moving the stop switch to the stop  position        English     13    MAINTENANCE    Carburettor    Your Husqvarna product has been designed and  manufactured to specifications that reduce harmful  emissions  After the engine has used 8 10 tanks of fuel the  engine will be run in  To ensure that it continues to run at peak  performance and to minimise harmful exhaust emissions after  the running in period  ask your dealer service workshop  who  will have a rev counter at their disposal  to adjust your  carburettor     WARNING  The machine may only be started  in its complete design  If the machine is    started without all the guards fitted there is a  risk of personal injuries        Function    m      The carburettor governs the engine s speed via the throttle  control  Air and fuel are mixed in the carburettor  The air fuel  mixture is adjustable  Correct adjustment is essential to get  the best performance from the machine     Adjusting the carburettor means that the engine is adapted to  local operating conditions  e g  climate  altitude  petrol and the  type of 2 stroke oil     Fine adjustment of the idle speed T    Adjust the idle speed using the idle adjustment screw T  if it is  necessary to readjust     The T screw regulates the throttle setting at idle speed  If the  T screw is turned clockwise this gives a higher idle speed   turning it anti clockwise gives a lower idle speed  The idle  speed is correctly adjusted when the engin
23. u must also wear approved protective goggles   Approved protective goggles must comply with standard  ANSI Z87 1 in the USA or EN 166 in EU countries  Visors  must comply with standard EN 1731     Blows from branches or objects that are thrown can  damage the eyes        e Wear sturdy  non slip boots              e Wear clothes made of a strong fabric and avoid loose  clothing that can catch on twigs and branches  Always  wear heavy  long pants  Do not wear jewellery  shorts  sandals or go barefoot  Secure hair so it is above shoulder  level     4     English       e A breathing mask should be used when there is a risk of  dust        e Always have a first aid kit nearby     a     Machine s safety equipment    This section describes the machine s safety equipment  its  purpose  and how checks and maintenance should be carried  out to ensure that it operates correctly  See the  What is  what     section to locate where this equipment is positioned  on your machine     The life span of the machine can be reduced and the risk of  accidents can increase if machine maintenance is not carried  out correctly and if service and or repairs are not carried out  professionally  If you need further information please contact  your nearest service workshop     WARNING  Never use a machine that has  faulty safety equipment  Carry out the    inspection  maintenance and service  routines listed in this section        Stop switch    Use the stop switch to switch off the engine        Quick re
24. ur machine  fails any of these checks contact your  service agent to get it repaired        Stop switch    e Start the engine and make sure the engine stops when  you move the stop switch to the stop setting        English     5    SAFETY INSTRUCTIONS    Vibration damping system    e Regularly check the vibration damping units for cracks or  deformation     e Check that the vibration damping element is undamaged  and securely attached     Muffler    e Never use a machine that has a faulty muffler        e Regularly check that the muffler is securely attached to  the machine             D    AD    i         aN    e Ifthe muffler on your machine is fitted with a spark arrestor  mesh this must be cleaned regularly  A blocked mesh will  cause the engine to overheat and may lead to serious  damage           e Never use a muffler with a defective spark arrestor mesh     Quick release     141B  155B  165BT    Check that the harness straps are correctly positioned  Once  the harness and machine have been adjusted  check that the  harness quick release works correctly         Oi  ALLIES  ARA    6     English    General safety precautions    IMPORTANT INFORMATION    The only accessories you can use with this engine unit are  those we recommend in the  Technical data chapter        Never use the machine if you are tired  if you have drunk  alcohol  or if you are taking medication that could affect your  vision  your judgement or your co ordination     Wear personal protective equipment 
    
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