Husqvarna Blower 225 HBV User Manual

225 HBV  
EPA Version  
Operator´s manual  
Read the operator’s manual carefully and  
make sure that you understand the contents  
before using the blower.  
101 90 68-95  
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INTRODUCTION  
Husqvarna AB has a policy of continuous product  
WARNING!  
development and therefore reserves the right to  
modify the design and appearance of products  
without prior notice.  
Under no circumstances may the  
design of the machine be modified  
without the permission of the  
manufacturer. Always use genuine  
accessories. Non-authorised  
modifications and/or accessories  
can result in serious personal  
injury or the death of the operator  
or others.  
!
This operator’s manual describes in detail how to  
use and service the blower and how to carry out  
regular maintenance. It also describes which meas-  
ures should be taken to achieve maximum safety  
while operating the blower, how the safety devices  
work and how they should be serviced.  
Your warranty does not cover  
damage or liability caused by the  
use of non-authorized accessories  
or replacement parts.  
Note! The section of the manual that deals with  
safety, must be read and understood by all persons  
who come in contact with the blower.  
This operator’s manual has been written for 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 the blower. 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 or vacuuming  
up leaves and other debris on the ground. When  
operating the blower, the operator must stand with  
both feet firmly on the ground.  
HUSQVARNA AB HUSKVARNA SWEDEN  
IMPORTANT ENGINE INFORMATION  
TWC  
THIS ENGINE CONFORMS TO U.S. EPA PH1  
FOR SMALL NON - ROAD ENGINES.  
REFER TO OPERATOR`S MANUAL FOR  
MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.  
This decal certify that the product has been  
approved in accordance with American  
exhaust emission requirements EPA PH1.  
2– English  
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KEY TO SYMBOLS  
Symbol  
Description  
Location  
Symbol  
Description  
Location  
The blower operator  
must make sure that no  
bystanders or animals  
come nearer than 10  
metres. Whenever  
several operators are  
working in the same  
work area, they should  
maintain a safe distance  
of at least 10 metres  
from one another.  
Checks and/or mainten-  
ance shall be carried out  
after having switched off  
the engine. The stop  
switch must be set to the  
STOP position.  
X
X
X
X
X
Cleaning at regular  
intervals is required.  
Approved protect gogg-  
les or visor must be  
worn.  
Choke.  
X
X
Refueling.  
Approved protect gogg-  
les or visor and ear  
protection must be worn.  
X
X
X
X
Stop switch.  
WARNING! The blower  
can be dangerous!  
Careless or improper  
use can cause serious,  
even fatal injury.  
X
X
STOP  
The manufacturer’s  
warrantee for this  
product meets safety  
requirements according  
to:  
Read the operator’s  
man-ual carefully and  
make sure that you  
X
X
X
X
X
•The Machine Directive  
•The EMC Directive  
•The Low Voltage  
Directive  
understand the contents  
before using the blower.  
WARNING! Make sure  
that the inspection cover  
is locked in the closed  
position or that the  
vacuum tube is mounted  
on the blower. Never  
touch the impeller.  
Instructions on how to  
open the inspection  
cover.  
X
X
Noise pressure level  
measured at 15 metres  
distance according to  
ANSI B175.2-1996.  
WARNING! The blower  
may throw objects at  
high velocity that can  
ricochet and hit the  
operator. This may  
cause serious eye  
damage.  
70dB(A)  
perANSIB175.2-1996  
X
X
Other symbols/decals on the machine refer  
to special certification requirements for  
certain markets.  
English – 3  
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SAFETY INSTRUCTIONS  
Personal safety equipment  
Persons who use the blower shall wear the following  
safety equipment:  
3
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.  
4
5
Personal safety  
The following instructions apply to persons  
operating the blower:  
Muffler  
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.  
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 long hair hang loose, since these  
can be drawn into rotating parts of the blower  
and cause injury.  
WARNING!  
3. Do not operate the blower while under the  
influence of alcohol, drugs or when you are  
tired.  
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!  
4. Do not allow minors to operate the blower.  
Fuel safety  
WARNING!  
Mufflers fitted with catalytic  
!
converters become extremely hot  
WARNING!  
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!  
The fuel used to run the blower  
!
has the following dangerous  
charact-eristics:  
1. Volatile liquid, its vapor and  
exhaust fumes are poisonous.  
2. Direct contact can cause skin  
irritation.  
3. It is extremely combustible.  
Special safety instructions apply to the type of fuel  
used for the blower. These instructions are specified  
under ”Fuel handling” on pages 11 and 12.  
4– English  
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SAFETY INSTRUCTIONS  
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  
the blower on page 8.  
WARNING!  
The blower must never be used if  
any of the safety devices or  
guards are missing, damaged or  
not in working order.  
!
The safety devices and guards 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  
Other safety measures  
1. Do not allow bystanders or animals to be in the  
work area, i.e. 10 metres from the operator.  
1. Operate the blower only at reasonable hours,  
i.e. not early in the morning or late at night when  
people might be disturbed. Comply with times  
listed in local ordinances. Usual recommend-  
ations are 9:00 a.m. to 5:00 p.m. Monday  
through Saturday.  
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.  
2. Operate the blower at the lowest possible  
throttle setting to do the job.  
4. Stop the engine before fitting or dismantling  
accessories or other components.  
3. Check the condition of the blower before opera-  
tion, especially the muffler, air intake and air  
filter.  
5. Never operate the blower if any of the guards is  
missing.  
6. Never operate the blower in poorly ventilated  
spaces where exhause fumes might otherwise  
be inhaled.  
4. Use a rake or a broom to loosen ground debris  
before blowing.  
7. Stop the engine before refueling.  
5. Under dusty conditions, slightly spray the work  
area with a hose or use a mister attachment  
when water is available.  
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.  
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.  
9. Be careful, particurlarly if left hand operation is  
applied. Avoid any direct body contact with the  
exhaust outlet area.  
7. Watch out for children, pets, open windows or  
freshly washed cars, and blow debris safely  
away.  
10. Do not operate the blower while standing on a  
ladder or a stand.  
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  
English – 5  
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DESCRIPTION  
The blower  
3
4
5
1
2
6
10  
9
18  
7
19  
17  
16  
8
21  
7
15  
14  
20  
11  
13 12  
7
1. Shoulder strap  
2. Throttle trigger  
3. Stop switch  
11. Inspection cover  
12. Cutters  
13. Fan impeller  
14. Nozzle  
4. Throttle lock  
5. Shoulder strap ring  
6. Anti-vibration system (inside the housing)  
15. Blower tube  
16. Muffler  
7. Fan housing  
8. Fuel cap  
9. Air filter  
17. Start handle  
18. Starter device  
19. Carburetor adjustment screws  
20. Operator’s manual  
10. Choke  
21. High velocity nozzle.  
6– English  
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DESCRIPTION  
Accessories  
21  
25  
22  
23  
24  
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.  
English – 7  
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DESCRIPTION  
Safety equipment  
The following equipment on the blower is designed  
for protecting personnel and materials. These com-  
ponents should receive special attention whenever  
you operate, inspect and service the blower.  
3
4
Stop switch (3)  
The stop switch is used to stop the engine.  
2
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 inde-  
pendently of one another.  
Anti-vibration system (6)  
The anti-vibration system is designed to dampen  
vibrations transmitted from the engine to the handle.  
The anti-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.  
A
Some blower models, esp. those sold in countries  
where the climate is dry, are equipped with spark-  
arresting mesh (A). This mesh must be cleaned or  
replaced at specific intervals. Check if your blower  
muffler has mesh of this type.  
WARNING!  
The muffler is extremely hot while  
!
the engine is running and after it  
has stopped. DO NOT TOUCH THE  
MUFFLER IF IT IS HOT! This can  
cause severe burns.  
8– English  
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DESCRIPTION  
Other equipment  
Throttle trigger (2)  
The speed and the output of the engine are regul-  
ated by the throttle trigger. The throttle lock (4) must  
be pressed down before the trigger will actuate the  
throttle.  
2
Fan casing (7)  
The blower fan casing (7) together with the impeller  
(13) provide high performance air discharge.  
Inspection cover (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. The inspec-  
tion 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 on page  
16.  
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).  
Cutters (12)  
7
13  
12  
11  
Two cutters are fastened to the impeller. The cutters  
are there to mulch leaves and other debris, that  
have been vacuumed, before they enter the fan  
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 dis-  
charge pattern is formed to provide best perform-  
ance.  
15  
14  
English – 9  
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DESCRIPTION  
Starter device (18)  
and starter handle (17)  
17  
18  
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.  
8
9
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, the power  
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 shroud-  
ing and should be used every time the engine is  
cold-started. The choke is de-activated automatical-  
ly when the throttle trigger is pressed.  
19  
10  
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, see page  
18.  
10 – English  
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FUEL HANDLING  
Fuel mixture  
NOTE!  
The machine is fitted with a two-stroke engine and  
must always be run on a mixture of gasoline and two-  
stroke oil. It is important to measure the quantity of oil  
accurately, to ensure the correct mixture ratio. Small  
discrepanciesintheamountofoilhaveagreatbearing  
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 (at least 87  
octane). If your machine is equipped with a catalytic  
converter,(seetechnicaldata”)anunleaded,oilmixed  
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  
87 so-called “knocking“ can occur. This leads to  
an increased engine temperature, which can  
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-stroke oil, which has been specially  
developed for Husqvarna two-stroke engines.  
Mixing ratio: 1:50 (2%).  
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.  
Never use two-stroke oil intended for water-  
cooled marine outboard motors, so-called  
outboard oil.  
Never use oil intended for four-stroke engines.  
English – 11  
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FUEL HANDLING  
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 of gasoline.  
• Mix (shake) the fuel mixture carefully before filling  
in the 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 Oil
Lit.  
Lit.  
2%(1:50)  
0,10  
0,20  
0,30  
0,40  
5
10  
15  
20  
WARNING!  
The catalytic converter muffler  
gets very hot during and after use.  
!
This also applies during idling. Be  
aware of the fire hazard, especially  
when handling the saw near  
flammable substances or vapours.  
Fuelling  
WARNING!  
The following precautions reduce  
the risk of fire:  
!
Do not smoke or place any  
sources of heat in the vicinity of  
the fuel. Never refuel when the  
engine is running. Always stop the  
engine and let it cool for a few  
minutes before refuelling. Open  
the fuel cap slowly when fuelling  
so that any over pressure is  
released slowly. Tighten the fuel  
cap carefully after refuelling.  
Always move the machine from the  
fuelling place before starting.  
• Clean around the fuel cap. Contamination in the  
tank can disrupt operations.  
Min. 3 m (10 ft)  
• Ensure that the fuel is well mixed by shaking the  
container before filling the tank.  
12 – English  
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STARTING AND STOPPING  
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).  
!
Starting a cold engine  
A cold engine should be started in the following  
manner:  
1. Move the stop switch to the start position.  
2. Set the choke to the choke position. Setting the  
chock will automatically set the throttle damper  
to the start throttle position.  
IMPORTANT!  
Do not pull out the starter cord completely  
and do not release the starter handle from  
the fully pulled out position. Doing so will  
damage the starter  
3. Press the blower against the ground and pull the  
starter handle slowly until resistance is felt (when  
the starter pawls engage). Then pull it with quick,  
vigorous movements.  
4. Move the choke control back immediately when  
the engine ignites and proceed according to  
item 3 above.  
5. When the motor starts, rapidly give it full throttle.  
The throttle latch will then automatically disen-  
gage.  
Starting a warm engine  
A warm engine can be started in the same manner  
as a cold engine, but with the following exception:  
Set the throttle to the start position by first moving  
the choke forward, and then back again. The  
choke should not be used when the engine is warm.  
Stopping  
The engine is stopped by switching off the ignition.  
Move the stop switch to the stop position..  
English – 13  
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USING THE BLOWER  
To blow away debris on the  
ground  
Fitting the blower tube and nozzle  
on the blower  
WARNING!  
When fitting the blower tube and  
nozzle, the engine must be  
!
switched off and the stop switch  
must be in the stop position.  
15  
14  
The blower tube and nozzle have a bayonet 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.  
WARNING!  
When working with the blower,  
wear the required protecting  
!
equipment:  
1. Hearing protection.  
2. Eye protection.  
3. Face mask in dusty environ-  
ments.  
When operating the blower, the blower must be  
secured to the shoulder strap. The strap should be  
worn over the shoulder as shown in the adjacent  
figure.  
14 – English  
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USING THE BLOWER  
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, particurlarly if left hand operation is applied. Avoid any direct body contact  
with the exhaust outlet area.  
WARNING!  
WARNING!  
Do not operate the blower while  
standing on a ladder or a stand.  
Never start the blower if the  
inspection cover is not closed, is  
damaged or cannot be closed.  
(Exception: When the vacuum tube  
is fitted).  
!
Start the blower as described on page 13. Work ac-  
cording to the following instructions:  
1. Never blow air toward fixed objects such as  
walls, large rocks, automobiles and fences.  
2. When working inside corners, blow from the  
corner and inward toward the centre of the  
work area. 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)  
21  
14  
The high-velocity nozzle is an accessory of the  
blower and is not included in the standard supply.  
When blowing with greater accuracy and high air  
stream concentration is necessary, substitute the  
standard nozzle (14) with the high-velocity nozzle  
(21).  
English – 15  
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USING THE BLOWER  
To vacuum debris from the  
ground  
The vacuuming device is an accessory and is not  
included in the standard supply.  
25  
Fitting the collection bag with the  
various vacuum tubes  
WARNING!  
When fitting the tubes to the  
blower, the engine must be  
!
22  
23  
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  
24  
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 the blower, 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 screw driver 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 onto the upper tube  
as shown 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.  
WARNING!  
When working with the blower, wear  
the required protecting equipment.  
!
1. Hearing protection.  
2. Eye protection.  
3. Face mask in dusty  
environments.  
16 – English  
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USING THE BLOWER  
When operating the blower, the blower and  
collection bag must be secured in the shoulder  
strap. The strap should be worn over the shoulder  
as shown in the adjacent figure.  
WARNING!  
WARNING!  
Always check that the collection  
Never start the blower if the  
inspection cover is not closed, is  
damaged or cannot be closed.  
(Exception: When the vacuum tube  
is fitted).  
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, particurlarly if left hand  
operation is applied. Avoid any  
direct body contact with the  
exhaust outlet area.  
WARNING!  
Do not operate the blower while  
standing on a ladder or a stand.  
Start the blower as described on page 13. Work ac-  
cording to the following instructions:  
1. Do not vacuum large solid objects that can  
damage the fan, such as wood, cans (tins) or  
lengths of string or ribbon.  
2. Do not let the vacuum tube strike the ground.  
3. The bag can be emptied after having opened  
the zipper on the side.  
English – 17  
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MAINTENANCE  
Basic (factory) settings  
Carburetor  
The carburetor has been carefully preset at the fac-  
tory. However, additional adjustment may be required  
due to climate, altitude, gasoline and type of two-  
stroke engine oil used. The instructions below  
describe how carburetor adjustment should be  
carried out.  
The carburetor is preset to the basic settings when  
the blower is tested at the factory. These basic  
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.  
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.  
Adjustment  
NOTE!  
Do not remove the stops in the H and L  
jets. If these stops are removed, the  
blower will no longer satisfy the  
environmental requirements established  
by the California Air Resources Board.  
The carburetor has three means of adjustment:  
H = High speed jet  
L = Low speed jet  
T = Adjustment screw for idling  
Low speed jet, L  
1. Check that the blower tube (15) and the nozzle  
(14) are mounted on the blower.  
H
L
T
2. Turn the H and L adjustment screws fully counter-  
clockwise so that they rest against the stop.  
3. Start the blower engine, see page 13, 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 it does.  
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. Then  
turn the L screw max 1/4 of a turn  
counterclockwise.  
6. Then turn the T screw to increase the engine  
speed, if necessary.  
Function  
The fuel quantity required in relation to the air flow,  
provided by the opening in the throttle, is adjusted  
by the L and H jets. If they are screwed clockwise,  
the air/fuel mixture becomes leaner (less fuel) and if  
they are screwed counterclockwise, the mixture  
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.  
NOTE!  
When setting the H jet, the max.  
permissible full-throttle interval is 10  
seconds, after which the engine must 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.  
The T screw regulates the idling speed. Turning the  
T screw clockwise will increase the idling speed;  
turning it counterclockwise will lower the idling  
speed.  
2. Give the engine full throttle and adjust the H  
screw until the engine runs at maximum speed.  
3. Turn the H screw 1/8 of a turn counterclockwise  
(less than 1/8 of a turn if the stop restricts this  
adjustment).  
18 – English  
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MAINTENANCE  
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 are hot and can contain sparks, which  
can result in fire if the exhaust fumes are directed  
towardsadryandinflammablematerial.Somemufflers  
areequippedwithaspecialsparkarrestscreen. Ifyour  
machine is fitted with this type of screen it should be  
cleaned regularly. This is done using a wire brush. On  
mufflerswithoutacatalyticconverterthescreenshould  
becleanedweekly,orreplacedifnecessary.Onmufflers  
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 engine to overheat resulting in damage to  
thecylinderandpiston.Alsoseeunder“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
4
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 to overheat and this will damage the cylinder  
and piston.  
2
3
English – 19  
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MAINTENANCE  
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  
B A  
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 some time, can-  
not be cleaned completely. Therefore,the filter must  
be replaced by a new one 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.  
0,5 mm  
These factors cause deposits on the spark plug  
electrodes, which may result in malfunction and  
difficulty starting the blower.  
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  
four screws.  
If the spark plug is clogged, clean it and check the  
electrode gap. Re-adjust if necessary. The correct  
gap is 0.5 mm (0.020”). 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  
plug! See under ”Technical data”. An incorrect spark  
plug can severely damage the piston/cylinder.  
20 – English  
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MAINTENANCE  
Starter device  
To change a broken or worn cord  
1. Unscrew the screws (A) to remove the starter  
device from the blower.  
2. Pull out the cord approx. 30 cm (12”) and lift it  
up into the notch in the periphery of the pulley.  
3. Rotate the pulley counterclockwise until the  
recoil spring is no longer tensioned.  
A
4. Unscrew the pulley center screw and washer.  
WARNING!  
If the recoil spring is tensioned on  
!
the pulley, the spring can pop out  
and cause injury. Always wear  
protective goggles and gloves.  
5. Lift up the pulley and remove the cord.  
6. Fit the new cord and tie a knot at the bottom end  
as shown in the bottom figure.  
7. Insert and pull the other end of the cord through  
the opening in the starter housing and through  
the handle. Then tie a knot in the cord to secure  
it in the handle.  
8. Refit the pulley by rotating it until it falls into  
place when the pulley hook engages in the re-  
coil spring. Refit and tighten the center screw  
and washer to secure the pulley .  
9. Re-tension the recoil spring as described on the  
next page.  
English – 21  
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MAINTENANCE  
To change the recoil spring  
1. Dismantle the pulley according to items 1 to 5 in  
the instructions on the preceding page.  
WARNING!  
The recoil spring may pop out and  
!
cause injury. Wear protective  
goggles or a visor.  
2. Carefully lift out the recoil spring.  
3. Fit the new recoil spring held together by a wire  
or holder, so that its looped end is on thepin in  
the starter housing.  
4. Fit the starter pulley by rotating it slightly so that  
it will fall into place where the pulley hook  
engages in the recoil spring. Refit and tighten  
the screw and washer that secure the pulley.  
5. Re-tension the recoil spring as described below.  
To tension the recoil spring  
1. Pull out the cord approx. 30 cm (12”) in the  
notch in the pulley.  
2. Rotate the pulley until the cord is correctly  
tensioned.  
To check the tension of the cord  
A. Pull out the cord as far as you can without  
resistance.  
B. From this point, it should be possible to turn  
the starter pulley an additional one half or  
three quarters of a turn.  
22 – English  
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MAINTENANCE  
Maintenance schedule  
A number of general maintenance instructions are  
given below. If more detailed instructions are  
required, get in touch with your local servicing  
dealer.  
2+3  
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.  
4
3. Check that the stop switch works properly.  
Replace if necessary.  
4. Clean the filter. Replace it, if required.  
5
5. Check that the inspection cover can be locked in  
the closed position. Carefully check that the fan  
impeller is clean, especially if the blower has  
been used for collecting debris (vacuuming).  
8
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. Replace it, if required.  
2
Weekly maintenance  
1. Check the condition of the starter device, the  
starter cord and the tensioning spring. Damaged  
parts shall be replaced.  
1
4
2. Check that none of the anti-vibration mountings  
are damaged. Replace damaged parts.  
3. Check the condition of the air intake at the  
starter device. Remove debris if it is clogged.  
5
7
6
4. Clean the outside of the spark plug. Unscrew it  
and check the electrode gap. Re-adjust the gap  
to 0.5 mm (0.020”), if necessary, or replace the  
spark plug.  
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).  
8
7. Clean the carburetor space.  
8. Clean the air filter.  
English – 23  
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MAINTENANCE  
Monthly maintenance  
1. Flush the fuel tank with clean gasoline, which  
afterward should be disposed of in an environ-  
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.  
2
4. Check the fuel filter and the fuel line. Replace  
them, if necessary.  
5. Check all the cables and the connections.  
Replace damaged parts.  
6. Change the spark plug.  
3
7. Check and clean the muffler’s spark arrest  
screen if necessary (only mufflers with a  
catalytic converter).  
4
5
6
7
24 – English  
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TECHNICAL DATA  
Engine  
Cylinder volume, cm3:  
Cylinder bore, mm:  
25,4  
34  
Stroke, mm:  
28  
Idling speed, rpm:  
3.000  
Max. speed – blowing, rpm:  
Max. speed – vacuuming, rpm:  
Max. engine output to ISO 8893:  
Catalytic converter muffler  
8.200  
7.400  
0.9 kW/9000 rpm  
Yes  
Ignition system  
Manufacturer/type of ignition system:  
Spark plug:  
Electrode gap, mm:  
Walbro MB/CD  
Champion RCJ 7Y  
0.5  
Fuel and lubrication system  
Manufacturer/type of carburetor:  
Fuel tank volume, liters:  
Walbro/WT  
0.4  
Weight  
Weight, without fuel but with blower tube  
and standard nozzle fitted, kg:  
5.1  
Noise levels  
Equivalent noise pressure level at  
operator’s ear. Weighted value for 50%  
idling and 50% full throttle to ISO 7182,  
dB(A):  
92  
Equivalent sound power level, measured  
to ISO 9207, dB(A):  
102  
Vibration levels  
Vibration levels at the handle, measured  
according to ISO 7505, m/s2  
Idling speed, front/rear handle:  
Max. speed, front/rear handle:  
2.6  
4.2  
Fan  
Type:  
Radial fan  
57 (206)  
425  
665  
560  
Max. air velocity, m/s (km/h):  
Air volume using a standard nozzle, m3/h:  
Air volume without nozzle and tube, m3/h:  
Air volume with vacuuming device, m3/h:  
English – 25  
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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 performed  
The EPA (The US Environmental Protection Agency),  
Environment Canada and Husqvarna Forest & Garden  
are pleased to explain the emissions control system  
warranty on your 1999 and later small nonroad engine.  
In U.S., new small nonroad engines must be designed,  
built and equipped to meet the federal stringent anti-  
smog standards. Husqvarna Forest & Garden must  
warrant the emission control system on your small  
nonroad engine for the periods of time listed below  
provided there has been no abuse, neglect or improper  
maintenance of your unit. Your emission control system  
includes Parts such as the carburetor and the ignition  
system.  
at no charge to the owner at an approved Husqvarna Forest &  
Garden servicing dealer. If you have any questions regarding  
your warranty rights and responsibilities, you should contact  
your nearest authorized servicing dealer or call Husqvarna  
Forest & Garden at 1-800-487-5963.  
WARRANTY PERIOD  
Any warranted part which is not scheduled for replacement as  
required maintenance, or which is scheduled only for regular  
inspection to the effect of ”repair or replace as necessary”  
shall be warranted for 2 years. Any warranted part which is  
scheduled for replacement as required maintenance shall be  
warranted for the period of time up to the first scheduled  
replacement point for that part.  
Where a warrantable condition exists, Husqvarna Forest  
& Garden will repair your small nonroad engine at no  
cost to you. Expenses covered under warranty include  
diagnosis, parts and labor.  
DIAGNOSIS  
The owner shall not be charged for diagnostic labor which  
leads to the determination that a warranted part is defective, if  
the diagnostic work is performed at an approved Husqvarna  
Forest & Garden servicing dealer.  
MANUFACTURER’S WARRANTY  
COVERAGE  
The 1999 and later small nonroad engines are  
warranted for two years. If any emission related part on  
your engine (as listed above) is defective, the part will  
be repaired or replaced by Husqvarna Forest &  
Garden.  
CONSEQUENTIAL DAMAGES  
Husqvarna Forest & Garden may be liable for damages to  
other engine components caused by the failure of a warranted  
part still under warranty.  
WHAT IS NOT COVERED  
All failures caused by abuse, neglect or improper  
maintenance are not covered.  
ADD -ON OR MODIFIED PARTS  
OWNER’S WARRANTY  
RESPONSIBILITIES  
The use of add-on or modified parts can be grounds for  
disallowing a warranty claim. Husqvarna Forest & Garden is  
not liable to cover failures of warranted parts caused by the  
use of add-on or modified parts.  
As the small nonroad engine owner, you are responsible  
for the performance of the required maintenance listed  
in your Operator’s Manual. Husqvarna Forest & Garden  
recommends that you retain all receipts covering  
maintenance on your small nonroad engine, but  
Husqvarna Forest & Garden cannot deny warranty  
solely for the lack of receipts or for your failure to ensure  
the performance of all scheduled maintenance.  
As the small nonroad engine owner, you should,  
however, be aware that Husqvarna Forest & Garden  
may deny you warranty coverage if your 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 approved by the original  
equipment manufacturer.  
HOW TO FILE A CLAIM  
If you have any questions regarding your warranty rights and  
responsibilities, you should contact your nearest authorized  
servicing dealer or call Husqvarna Forest & Garden at  
1-800-487-5963.  
WHERE TO GET WARRANTY SERVICE  
Warranty services or repairs shall be provided at all  
Husqvarna Forest & Garden authorized servicing dealers.  
MAINTENANCE, REPLACEMENT AND  
REPAIR OF EMISSION-RELATED PARTS  
Any Husqvarna Forest & Garden approved replacement part  
used in the performance of any warranty maintenance or  
repairs on emission-related parts, will be provided without  
charge to the owner if the part is under warranty.  
You are responsible for presenting your small nonroad  
engine to a Husqvarna Forest & Garden authorized  
servicing dealer as soon as a problem exists. The  
warranty repairs should be completed in a reasonable  
amount of time, not to exceed 30 days.  
If you have any questions regarding your warranty rights  
and responsibilities, you should contact your nearest  
authorized servicing dealer or call Husqvarna Forest &  
Garden at 1-800-487-5963.  
EMISSION CONTROL WARRANTY  
PARTS LIST  
1. Carburetor and internal parts  
WARRANTY COMMENCEMENT DATE  
The warranty period begins on the date small nonroad  
engine is delivered.  
2. Intake pipe, airfilter holder and carburetor bolts.  
3. Airfilter and fuelfilter covered up to maintainance schedule.  
4. Ignition System  
a) Spark Plug, covered up to maintenance schedule  
b) Ignition Module  
5. Muffler with catalytic converter  
LENGTH OF COVERAGE  
Husqvarna Forest & Garden warrants to the initial owner  
and each subsequent purchaser that the engine is free  
from defects in materials and workmanship which cause  
the failure of a warranted part for a period of two years.  
MAINTENANCE STATEMENT  
The owner is responsible for the performance of all required  
maintenance, as defined in the operator’s manual.  
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