# 225B  Operator's manual  Read the operator's manual carefully and make sure that you understand the contents before using the blower.  
Safety instructions .  Description  Fuel handling .12  Start and stop . .14  Using the blower .16  Maintenance 20  Technical data. .25  Maintenance, replacement, orrepair ofthe emission control devices and systems may be performed by any non road engine repair establishment or individual.  Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice.  This operator's manual describes in detail how to use and service the blower and how to carryout regular maintenance.It also describes which me asure s should betaken to achieve maximum safety while operating the blower,how the safety devices work and how they should be serviced.  Note!The section of the manual that deals with safety,mustberead and understood by all persons who come in contact with the blower.   This operator's manual has been writtenfor those who need guidance when it comes to fault tracing thorough servicing and carrying out corrective maintenance of the blower.  There are warning symbols on theblower.These are illustrated on page 3.Should any of the warning symbols on the blower become disfigured or worn, new ones should be ordered and fitted to the blower as soon as possible. Note that some of the warning symbols are molded in certain components of the blower.  The blower is used for blowing away leaves and other debris on the ground.When operating the blower, the operator muststand with both feet firmly on the ground.   # Personal safety equipment  Persons who use the blower shall wear the following safety equipment:  1.Approved ear protection 2.Approved eye protection. 3. Face mask when operating the blower in dusty environments. 4.Boots or work shoes with a non-slip sole 5.First-aid kit.   # Personal safety  The following instructions apply to persons operating the blower:  1.The operator shall have read and understood the contents of this manual. 2.Do not wear loose clothing, scarves or neck chains or let longhair hang loose,sincethese can be drawn into rotating parts of the blower and cause injury. 3.Do not operate the blower while under the influence of alcohol, drugs or when you are tired. 4.Do not allow minors to operate theblower  # Fuel safety   
Special safety instructions apply to the type of fuel used for the blower.These instructions are specified  # Muffler  The muffler is designed to give the lowest possible noiselevel and todirect theengine's exhaust fumes away from the operator.Muffler fitted with catalytic converter is also designed to reduce harmful exhaust components.  WARNING! The exhaust fumes from the engine are hot and may contain sparks which can start afire. Never start the machine indoors or near combustible material!  WARNING! Mufflers fitted with catalytic converters become extremely hot during use and after stopping. This also applies at idling speeds. Contact can result in burns to the skin. Be observant to the risk of fire!  # Safety equipment  The blower is equipped with a number of safety devices and guards for the prevention of accidents. These are described in the general description of theblower onpage8.  The safety devices andguards also require regular inspection and maintenance. These measures and the interval at which they should be carried out are specified under"Maintenance”on pages 23 and 24  # Safety while operating the blower  1.Do not allow bystanders or animals to be in the workarea,i.e.10 metres from the operator. 2.The blower may throw objects at high velocity that can ricochet and hit the operator. This may cause serious eye damage. 3.Never point the blower nozzle toward people or animals. 4.Stop the engine before fitting or dismantling accessories or other components. 5.Never operate theblower if any of the guards is missing. 6.Never operate the blower in poorly ventilated spaces where ex ha use fumes might otherwise beinhaled. 7.Stop the engine before refueling. 8.The catalytic muffler is extremely hot while the blower is running and after it has stopped. The same applies when the blower is running at idling speed.Be aware of the danger of fire, especially while operating the blower near combustible materials and/or where combustible fumes are present. 9.Be careful, parti curl a rly if left hand operation is applied. Avoid any directbody contact with the exhaust outlet area. 10.Do not operate the blower while standing on a ladder or a stand.  # Other safety measures  1.Operate the blower only at reasonable hours, i.e. not early in the morning or late at night wher people might be disturbed.Comply with times listed in local ordinances.Usual recommendationsare  $9{\cdot}00\ \mathsf{a.m}$  to5:00p.m.Monday through Saturday. 2.Operate the blower at the lowest possible throttle setting to do the job. 3.Check the condition of the blower before operation,especially the muffler,air in take and air filter. 4.Use a rake or a broom to loosen ground debris before blowing. 5. Under dusty conditions, slightly spray the work area with a hose or use a mister attachment when water is available. 6.Conserve water by using blowers instead of hoses for many lawn and garden applications, including areas such as roof gutters, screens, patios and gardens etc. 7. Watch out for children, pets, open windows or freshly washed cars,and blow debris safely away. 8. Use the full nozzle extension so the air stream can work close to the ground. 9. After using the blower, clean up and dispose of debris in trash receptacles  
# The blower1.Shoulder strap2.Throttle trigger3.Stop switch4.Throttle lock5.Shoulder strap ring6.Anti-vibration system (inside the housing)7.Fan housing8.Fuel cap9.Air filter10.Choke11.Inspection cover (225 Bx seRies)  12.Cutters (225 Bx sERI is)13.Fan impeller14.Nozzle15.Blower tube16.Muffler17.Start handle18.Starter device19.Carburetor adjustment screws20.Operator's manual21.High velocity nozzle    
# Accessories (225B）21.Vacuum device with collection components consisting of items 22 - 25 below 22.Vacuum bag tube. 23.Collection bag. 24.Vacuum tube in two sections 25.Auxiliary handle   
# Safety equipment  The following equipment on the blower is designed for protecting personnel and materials.Thesecom- pon ents should receive special attention whenever youoperate,inspect and service the blower.  # Stop switch (3)  The stop switch is used to stop the engine  # Throttle lock (4)  The throttle lock prevents inadvertent activation of the throttle.When the throttle lock is pressed into the handle (when gripping the handle) the throttle trigger (2) is disengaged.When the operator releases his/her grip on the handle, both the throttle trigger and the throttle lock are reset to their original settings by means of two spring systems which work in dependent ly of one another.   # Anti-vibration system (6)  Theanti-vibration system is designed to dampen vibrations transmitted from the engine to the handle. Theanti-vibration system consists of spring-type mountings,from which the engine is suspended   # Muffler(16)  The muffler is designed to give the lowest possible noise level and to direct the engine's exhaust fumes away from the operator.Muffler fitted with catalytic converter is also designed to reduce harmful exhaust components.  The engine exhaust fumes are hot and can contain sparks, which may cause fire if they come in contact with dry or combustible material.  Some blower models,esp.those sold in countries where the climate is dry,are equipped with sparkarresting mesh(A).This mesh must be cleaned or replaced at specific intervals.Check if your blower muffler has mesh of this type.   # Other equipment Throttle trigger (2)  The speed and the output of the engine are regulatedby the throttle trigger.The throttle lock(4) must be pressed down before the trigger will actuate the throttle.   # Fan casing (7)  The blower fan casing (7) together with the impeller (13) provide high performance air discharge.  # Inspection cover(225B) (11)  An inspection cover is located on the underside of the fan casing.Removal of this cover allows access for cleaning and inspecting the impeller.Theinspection cover can only be opened by means of tools  If the vacuum tube is used, it must be fitted to the opening in the inspection cover as shown onpage 16.  # Cutters (225B) (12)  Two cutters are fastened to the impeller.Thecutters are there to mulch leaves and other debris,that have been vacuumed,before they enter thefan inlet.     # Nozzle (14) and blower tube (15)  The nozzle and the blower tube have a bayonet mount for connection to the blower.Air is channeled through the blower tube to the nozzle,where the air discharge velocity increases and the air stream d ischarge pattern is formed to provide best performance.   
# Starter device (18) and starter handle (17)  The starter device is located at the top on the engine shrouding and engages in the crank shaft only when the starter handle is pulled.   # Fuel cap (8)  The fuel cap (14) is located at the top of the engine shrouding and has a gasket, which prevents fuel from leaking out.  # Air filter (9)  The air filter consists of foam-rubber filter medium, integrated in a plastic casing. The air filter should be cleaned at specific intervals.Otherwise,thepower blower will consume too much fuel,the performance will be reduced and an oily deposit may form on the spark plug electrodes.  # Choke (10)  The choke is located at the top of the engine shrouding and should be used everytime the engine is cold-started.The choke is de-activated automatic ally when the throttle trigger is pressed.  # Adjusting the carburetor (19)  There are three adjusting screws for adjusting the carburetor:  Low speed jet High speed jet Adjustment screw for idling  Adjusting the carburetor involves adapting the engine to local operating conditions,e.g.climate, altitude,gasoline and type of two-stroke engine oil used.  For details about carburetor adjustment seepage 18.  # Fuel mixture  # NOTE!  The machine is fitted with a two-stroke engine and must always be run on a mixture of gasoline and two-strokeoil.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! Allow adequate ventilation while handling fuel.  # Gasoline  # NOTE!  Always use an oil-mixed quality gasoline(atleast87 octane). lf your machine is equipped with a catalytic converter,(see"technical data")anunleaded,oil mixed quality gasoline should always be used.A leaded gasoline will destroy the catalytic converter.  This engine is certified to operate on unleaded gasoline.  The lowest recommended octane rating is 87.If you run the engine on lower octane rating than 87so-called"knocking"can occur.Thisleads to an increased engine temperature,whichcan result in a serious engine breakdown.  When working at continuous high revs a higher octane rating is recommended   # Two-stroke oil  For the best performance, use HUSQVARNA two-strokeoil,which has been specially developed for Hu sq varna two-stroke engines. Mixing ratio: 1:50  If HU SQ VARNA 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.  Never use two-stroke oil intended for watercooled marine outboard motors, so-called outboard oil.  Never use oil intended for four-stroke engines   
# Mixture  ·Always mix gasoline and oil in a clean container intended for fuel. ·Always start by filling half the quantity of gasoline required. Then add the entire oil quantity. Mix (shake)the fuel mixture.Fill the remaining quantity ofgasoline. · Mix (shake) the fuel mixture carefully before filling in the machine'sfueltank. · 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.    # Fuelling   · Clean around the fuel cap. Contamination in the tank can disrupt operations.  · Ensure that the fuel is well mixed by shaking the container before filling the tank  
 # Start and stop Start   Cold engine  IGNITION: Set the stop switch to the start position  CHOKE: Set the choke control in the choke position (A). The choke position is also the automatic start throttle position.  AIRPURGE: Press the air purge diaphragm repeatedly until fuel begins to fill the diaphragm.The diaphragm need not be completely filled.   # Warm engine   IGNITION: Set the stop switch to the start position  CHOKE: Set the choke control in the choke position and then back again to its original position(B) In this way only the start throttle is applied with nochoke.  AIRPURGE: Press the air purge diaphragm repeatedly until fuel begins to fill the diaphragm. The diaphragm need not be completely filled  
 
Press the machine body against the ground using your lefthand(NoTE!Do not use your foot).Gripthe 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 press the choke control in when the engine fires and repeat until the engine starts.When the engine starts, quickly applyfull throttle and the start throttle will automatically disengage.  NOTE!Donotpull the starter cord out completely and do not release the starter cord from the fully extended position. This can damage the machine.   # Stop  The engine is stopped by switching the ignition off using the stop switch.   # To blow away debris on the ground  # Fitting the blower tube and nozzle on the blower   Theblower tube and nozzlehave abayonet mount Fit them in the following manner:  1.Press the blower tube (15) against the blower air outlet and turn it 90 degrees until a snap is heard.  2.Fit the nozzle (14) onto the tube (15), and turn it 90 degrees until a snap is heard.   # Blowing  Before you begin blowing, put on the required safety equipment.    When operating theblower,the blower must be secured to the shoulders trap.The strap should be worn over the shoulder as shown in the adjacent figure.    WARNING!  Never point the blower nozzle at people or animals. The high-velocity air stream can contain particles that may cause serious injury, especially if the blower has previously been used for vacuuming.  Be careful, parti curl a rly if left hand operation is applied. Avoid any direct body contact with the exhaust outlet area.  WARNING! Never start the blower if the inspection cover is not closed, is damaged or cannot be closed. (Exception:When the vacuum tube is fitted).  WARNING! Do not operate the blower while standing on a ladder or a stand.  Start the blower as described on page 13.Workac cording to the following instructions:  1.Neverblow air toward fixed objects suchas walls,large rocks, automobiles and fences.  2.When working inside corners,blow from the corner and inward toward the centre of the workarea.Otherwise,debris can fly up in your face and cause eye injury.  3.Never point the blower nozzle at delicate plants  # High-velocity nozzle (21)  Thehigh-velocity nozzle is an accessory of the blower and is not included in the standard supply  When blowing with greater accuracy andhigh air stream concentration is necessary,substitute the standard nozzle (14) with the high-velocity nozzle (21).   
# To vacuum debris from the ground (225B X-SERIES  The vacuuming device is an accessory and is not included in the standard supply.  # Fitting the collection bag with the various vacuum tubes  WARNING! When fitting the tubes to the blower, the engine must be switched off and the stop switch must be in the stop position.  1.Open the collection bag.Insert the collection bag tube from inside the bag to fit in the vacuum inlet opening of the bag as illustrated in the adjacent figure. Close the zipper on the bag  2.Press the collection bag tube on theblower,turn it  $1/4$  of a turn until a snap is heard. The section of the tube that is covered by the collection bag must arranged with its outlet pointing downwards.Attach the carrying strap to the harness ring.  3.Open the cover at the underside of the blower using a screwdriver to disengage the locking piece in the square opening.  4.Press the vacuum tube in the large opening at the underside of the blower and turn it 45 degrees until the bayonet mount locks.  5.Push the lower vacuum tube on to the upper tube asshown in the adjacent figure.  6.Fit the auxiliary handle as described in the separate instructions.  # Vacuuming  Before vacuuming, put on the required safety equip ment.   
   When operating the blower, the blower and collection bag must be secured in the shoulder strap.The strap should be worn over the shoulder asshown in the adjacent figure .
WARNING! Always check that the collection bag is intact and the zipper is closed before starting the blower. Never use a damaged bag. There is risk of injury due to flying debris. Be careful, parti curl a rly if left hand operation is applied.Avoid any direct body contact with the exhaust outlet area.   WARNING! Never start the blower if the inspection cover is not closed, is damaged or cannot be closed. (Exception: When the vacuum tube is fitted).  WARNING! Do not operate the blower while standing on a ladder or a stand.  Start the blower as described on page 13.Workac cording to the following instructions:  1.Do not vacuum large solid objects that can damage the fan, such as wood, cans (tins) or 2.Do not let the vacuum tube strike the ground 3.The bag can be emptied after having opened the 
zipper on the side  # Carburetor  The carburetor has been carefully preset at thefactory. However, additional adjustment may be required due to climate, altitude, gasoline and type of twostroke engine oil used.The instructions below describe how carburetor adjustment should be carriedout.  The carburetor governs the engine speed via the throttle. Air and fuel are mixed in the carburetor. The air/fuel mixture is adjustable.To utilize the blower's maximum output,the settings must be correct.  The carburetor has three means of adjustment:  H=  High speed jet  L= Low speed jet  T= Adjustment screw for idling   # Function  The fuel quantity required in relation to the air flow, orovided by the opening in the throttle, is adjusted by the Land H jets.If they are screwed clockwise, theair/fuel mixture becomes leaner(lessfuel)andif they are screwed counterclockwise,themixture becomes richer(more fuel).A leaner mixture gives rise to a higher engine speed and a richer mixture gives rise to a lower engine speed.  The T screw regulates the idling speed. Turning the T screw clockwise will increase the idling speed; turning it counterclockwise will lower theidling speed.  # Basic (factory) settings  The carburetor is preset to the basic settings when the blower is tested at the factory.Thesebasic settings are the following:  The H screw has been turned counterclockwise to its end position against the stop. The L screw has been turned counterclockwise to its end position against the stop.  The recommended idling speed is 3000 rpm  # Adjustment  NOTE! Do not remove the stops in the H and L jets.If these stops are removed,the blowerwill no longer satisfy the environmental requirements established by the California Air Resources Board.  # Low speed jet, L  1.Check that the blower tube(15)and thenozzle (14)are mounted on the blower. 2.Turn the H and L adjustment screws fully counterclockwise so that they rest against the stop. 3.Start the blower engine,seepage13,and alternate letting it run at idling speed and at half throttle for 1-2 minutes to warm up.If the engine will not run at idling speed,turn the T screw clockwise until itdoes. 4.Set the T screw to the setting, at which the engine runs precisely at idling speed,but not faster. 5.Make a fine adjustment, turning the L screw so that the engine will run at max.idling speed.Ther turn the L screw max 1/4ofaturncounterclockwise. 6.Then turn the T screw to increase the engine speed,if necessary.  NOTE! When setting the H jet, the max. permissible full-throttle interval is 10 seconds,after which the enginemust run at idling speed for at least 10 seconds.  # High speed jet, H  1.Start the blower as described on page 13 and alternate letting it run at idling speed and at half throttle for 1-2 minutes to warm up. 2.Give the engine full throttle and adjust theH screw until the engine runs at maximum speed. 3.Turn the H screw 1/8 of a turn counterclockwise (lessthan 1/8 of a turn if the stop restricts this adjustment).  
# Muffler  # NOTE!  Some mufflers are fitted with a catalytic converter. See"Technical data"to see whether you clearing saw is fitted with a catalytic converter  The muffler is designed to dampen the noise level and to direct the exhaust fumes away from the user The exhaust fumes arehot and can contains parks which can result in fire if the exhaust fumes are directed towards a dry and inflammable material. Some mufflers are equipped with a special spark arrest screen.If your machine is fitted with this type ofscreen itshould becleaned 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 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.Contact your dealer to inspect the muffler.A blocked screen will cause the engineto overheat resulting in damage to the cylinder and piston.Also see under"Maintenance"   # NOTE!  Never use a machine with a defective muffler  # Cooling system  The engine is equipped with a cooling system for maintaining the right operating temperature.  The cooling system consists of the following components:  1.Air intake on the starter device. 2.Fan blades on the flywheel. 3.Cooling fins on the cylinder. 4.Cylinder cowling (guides cooling air flow against cylinder surfaces).   Clean the cooling system by brushing once a week or more often, if necessary.  A dirty or blocked cooling system will cause the blower tooverheat and thiswill damage the cylinder andpiston.  
# Air filter  The air filter (A) must be cleaned regularly to remove dust and dirt.This will prevent:  Carburetor malfunctions Starting problems ? Reduced performance Unnecessary wear on engine parts Abnormal fuel consumption Elevated content of harmful exhaust fumes  Clean the filter after 25 hours of operation or more often if the air is exceptionally dusty in the work area.  # To clean the air filter  Dismantle the air filter cover (B) and remove the filter medium. Wash it clean in a solution of soap and warm water.Make sure that the filter is dry before reassembling.   An air filter,which has been used for sometime,cannot be cleaned completely. Therefore,the filter must be replaced by a newone at regular intervals.A faulty filter must always be replaced.  # Spark plug  The condition of the spark plug is influenced by:  An incorrectly adjusted carburetor. Wrong fuel mixture (too much oil in the gasoline). Poor quality gasoline and/or oil. A dirty air filter.  These factors cause deposits on the spark plug electrodes,which may result in malfunction and difficulty starting theblower.  If the engine is low on power,difficult to start or runs poorly at idling speed, always check the spark plug first.  The spark plug is accessible under the cylinder shrouding, which can be removed by unscrewing fourscrews.  If the spark plug is clogged, clean it and check the electrode gap.Re-adjust if necessary. The correct gapis  0.5mm.The spark plug should be replaced after about one month of operation or earlier if the electrodes are badly eroded.   NOTE!Always use the recommended type of spark olug!Seeunder"Technical data".An incorrect spark plug can severely damage the piston/cylinder  # Maintenance schedule  A number of general maintenance instructions are givenbelow.If more detailed instructions are required, get in touch with your local servicing dealer.  # Daily maintenance  1.Clean the exterior surfaces of the blower  2.Check that the throttle lock and the throttle trig ger function in a safe manner.Replace damaged parts.  3.Check that the stop switch works properly Replace if necessary.  4.Clean the filter. Replace it, if required  5.225B :Check that the inspection cover can X-SERIES belocked in the closed position.Carefully check that the fan impeller is clean, especially if the blower has been used for collecting debris(vacuuming)  6.Check that all nuts and screws are properly tightened.  7.Check that all the housings are free of cracks Damaged parts shall be replaced.  8.Check that the collection bag is intact and that the zipper works.Replaceit,ifrequired.   # Weekly maintenance  1.Check the condition of the starter device,the starter cord and the tensioning spring.Damaged parts shall be replaced.  2.Check that none of the anti-vibration mountings aredamaged.Replace damaged parts  3.Check the condition of the airintake at the starter device.Remove debris if it is clogged  4.Clean the outside of the spark plug. Unscrew it and check the electrode gap. Re-adjust the gap to  $0.5\:\mathsf{m m}\left(0.020"\right)$  ,if necessary,or replace the sparkplug.  5.Clean the fan blades on the flywheel  6.Clean or replace the muffler's spark arrest screen(not on mufflers with a catalytic converter).  7.Clean the carburetor space.  8.Clean the air filter.   # Monthly maintenance  1.Flush the fuel tank with clean gasoline,which afterward should be disposed of inane nv iron mentally correct manner.  2.Clean the outside of the carburetor and the space around it.Replace damaged parts  3.Clean the fan blades on the flywheel and the space around it.  4. Check the fuel filter and the fuel line. Replace them, if necessary.  5.Checkall thecables and the connections. Replace damaged parts.  6. Change the spark plug.  7.Check and clean themuffler'sspark arrest screen if necessary(only mufflers with a catalytic converter).