Operator’s manual
WARNING
Before using our products, please read this manual
carefully to understand the proper use of your unit.
330BT
350BT
370BTS
380BTS
English
APPLICABLE SERIAL NUMBERS: 80100101 and up
115 14 24-26
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English
EC-declaration of conformity
EC-declaration of conformity [370BTS]
(Applies to Europe only)
Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel +46-36-146500, declares under sole responsibility that the blowers Husqvarna 370BTS
with serial numbers dating 2006 and onwards (the year is clearly stated on the rating plate, followed by the serial number), comply with
the requirements of the COUNCIL’S DIRECTIVE:
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: ISO 7917:1987,
CISPR 12:2005, ISO 14740:1998.
TUV Rheinland Japan Ltd., 9F 3-19-5 Shin Yokohama, Kohoku-ku, Yokohama 222-0033, Japan, has performed voluntary type
examination on behalf of Husqvarna AB. The certificates are numbered: AM5007/9255/0001
Huskvarna 10/03/2006
Bo Andréasson, Managing director
APPROVAL NUMBER OF CE EXHAUST EMISSION REGULATION (2002/88/EC)
e13*97/68SH3G3*2002/88*0223*03
EC-declaration of conformity [380BTS]
(Applies to Europe only)
Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel +46-36-146500, declares under sole responsibility that the blowers Husqvarna 380BTS
with serial numbers dating 2008 and onwards (the year is clearly stated on the rating plate, followed by the serial number), comply with
the requirements of the COUNCIL’S DIRECTIVE:
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: ISO 22868:2005,
CISPR 12:2005, ISO 14740:1998.
TUV Rheinland Japan Ltd., 9F 3-19-5 Shin Yokohama, Kohoku-ku, Yokohama 222-0033, Japan, has performed voluntary type
examination on behalf of Husqvarna AB. The certificates are numbered: AM5011/6693/0001
Huskvarna 23/10/2007
Bo Andréasson, Managing director
APPROVAL NUMBER OF CE EXHAUST EMISSION REGULATION (2002/88/EC)
e13*97/68SH3G3*2002/88*0106*03
3
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Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SAFETY FIRST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Notes on types of warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Warning labels on the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Symbols on the machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
WORKING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
WORKING CIRCUMSTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AVOID NOISE PROBLEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
WORKING PLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
FUEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
BEFORE STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
USING THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TRANSPORTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
STORAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
What is what? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
SWIVEL JOINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
THROTTLE LEVER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
THROTTLE CABLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
HANDLEBAR [OPTION] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
BLOWER TUBES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
HARNESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
WAIST BELT [350BT] [370BTS] [380BTS] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FUEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
HOW TO MIX FUEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
FUELING THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
STARTING ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
ADJUSTING IDLE SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
STOPPING ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
AIR CLEANER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
FUEL FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SPARK PLUG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
MUFFLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SPARK ARRESTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AIR INLET NET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
IGNITION COIL AIR GAP INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
SHOLDER STRAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4
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Safety
Notes on types of warnings
SAFETY FIRST
Instructions contained in warnings within this manual and
WARNING
Instructions labeled as shown above, concern critical steps
or procedures which must be followed in order to prevent
accidents which could lead to serious bodily injury or
death.This mark is used to indicate instructions which must
be followed without exception.
warning seals marked with a
symbol on the blower concern
critical points which must be taken into consideration to prevent
possible serious bodily injury, and for this reason you are
requested to read all such instructions carefully and follow them
without fail.
IMPORTANT
Instructions labeled as shown above concern steps or
procedures which, if not followed correctly, could lead to
mechanical failure, breakdown, or damage.
NOTE
Used to label supplementary instructions designed to
provide hints or directions useful in the use of the product.
Warning labels on the machine
The blower operator must make sure
that no bystanders or animals come
Symbols
nearer than 50 feet (15 meters).
Whenever several operators are
working in the same work area, they should maintain a safe
distance of at least 50 feet (15 meters) from one another.
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.
A breathing mask should be used when
there is a risk of dust.
Please read the operator’s manual carefully
and make sure you understand the
instructions before using the machine.
Keep all parts of your body away from hot
surfaces.
Always wear:
• Hearing protection
• Approved eye protection
This product is in accordance with
applicable EC directives.
Other symbols/decals on the machine refer to special
certification requirements for certain markets.
IMPORTANT
Always wear protective gloves.
If the warning label peels off or becomes soiled and
impossible to read, you should contact the dealer from
which you purchased the product to order new labels and
affix them in the required location(s).
The blower can forcibly throw objects that
can bounce back. This can result in
serious eye injuries if the recommended
safety equipment is not used.
5
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Symbols on the machine
(c)
(a)
(b)
(d)
For safe operation and maintenance, symbols are carved in
relief on the machine. Using to these indications, please be
careful not to make a mistake.
(a) The port to refuel the "MIX GASOLINE"
Position: FUEL TANK CAP
(b) The direction to close the choke
Position: INTAKE CUP
(c) The direction to open the choke
Position: INTAKE CUP
(d) The direction to stop the engine
Position: THROTTLE LEVER
Safety Precautions
8. Under no circumstances may the design of the machine
be modified without the permission of the manufacturer.
Always use genuine accessories. Non-authorized
modifications and/or accessories can result in serious
personal injury or the death of the operator or others.
9. A blower is a dangerous tool if used carelessly or
incorrectly and can cause serious, even fatal injuries. It
is extremely important that you read and understand the
contents of this Operator’s manual.
WARNING
1. Read this Blower Operator Manual carefully. Be sure
you understand how to operate this unit properly before
you use it. Failure to do so could result in serious injury.
2. Be sure to keep this manual handy
so that you may refer to it later
whenever any questions arise. Also
note that you are requested to
contact the dealer from whom you
purchased the product for
assistance the event that you have
any questions which cannot be
10. 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.
answered herein.
11. The machine is only designed for blowing lawns,
pathways, asphalt roads and the like.
3. Always be sure to include this manual when selling,
lending, or otherwise transferring the ownership of this
product.
4. Do not lend or rent your machine without the owner's
manul.
5. Be sure that anyone using your unit understands the
information contained in this manual.
6. Never let a child use the machine.
7. Long-term exposure to noise can result in permanent
hearing impairment. So always use approved hearing
protection.
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Safety Precautions
WORKING CONDITIONS
AVOID NOISE PROBLEM
1. Refrain from operating the blower if you are tired, ill, or upset,
or if you are under the influence of alcohol, drugs or
medication
NOTE
Check and follow the local regulations as to sound levels
and hours of operations for blower.
2. To reduce the risk of hearing loss associated with sound
levels, hearing protection is required.
3. To reduce the risk of injury associated
with thrown objects, always wear eye
protection and foot protection.
1. Operate power equipment only at reasonable hours, not
early in the morning or late at night when people might be
disturbed. Comply with times listed in local ordinances.
2. To reduce sound levels, limit the number of pieces of
equipment used at any one time.
Approved protective goggles must
comply with standard ANSI Z87.1 in the
USA or EN 166 in EU countries.
3. Operate power blowers at the lowest possible throttle speed
to do the job.
4. To reduce the risk of injury associated
with the inhalation of dust, use a face
filter mask in dusty conditions.
4. Check your equipment before operation, especially the
muffler, air intakes and air filters.
5. Wear rubber-soled shoes or shoes with
some other form of anti-slip protection
to help protect you against falling.
WORKING PLAN
• To reduce the risk of health damages, avoid excessive use
and take sufficient time to rest .
6. To reduce the risk of injury associated
with objects being drawn into rotating
parts, do not wear loose clothing,
scarves, neck chains, hair longer than
shoulder length, or other loose
material.
FUEL
WARNING
To reduce the risk of fire and burn injury:
a) Handle fuel with care. It is highly
flammable.
b) Do not smoke while handing fuel.
c) Do not refuel a hot engine.
d) Do not refuel a running engine.
e) Avoid spilling fuel or oil. Always wipe
unit dry before using.
f) Move at least 10 ft. (3 meters) away
from the fueling point before starting the engine.
g) Always store gasoline in a container approved for flammable
liquids.
7. Prolonged use of a blower, exposing the operator to
vibrations and cold, may produce whitefinger disease
(Raynaud’s phenomenon), the symptoms of which include
tingling and burning sensations followed by loss of color and
numbness in the fingers. All factors which contribute to
whitefinger disease are not known, but cold weather,
smoking diseases or physical conditions as well as long
periods of exposure to vibration are mentioned as factors. In
order to reduce the risk of whitefinger disease, the following
precautions are strongly recommended
h) Make sure the unit is properly assembled and in good
operating condition.
a) Keep your body warm. Avoid using the
blower during rain.
i) Do not use the blower near a fire, as
aiming the blower in the direction of a
flame may cause flammable
b) Take more than 5 minutes of break
in a warm place frequently.
c) Maintain a firm grip at all times, but
substances to ignite.
do not squeeze the handles with
constant, excessive pressure.
d) If you feel discomfort, redness and
swelling of your fingers or any
other part of your body, see a doctor before it gets worse.
8. The ignition system of your unit produces an electromagnetic
field of a very low intensity. This field may interfere with some
pacemakers. To reduce the risk of serious or fatal injury,
people with pacemaker should consult their physician and
the pacemaker manufacturer before operating this tool.
WORKING CIRCUMSTANCE
1. To reduce the risk of injury associated
with exhaust fume inhalation, do not
operate in unventilated area. The
exhaust gases contain harmful carbon
monoxide.
2. Avoid using the blower where stable
footing and balance are not assured.
3. Never operate the machine in high
wind, bad weather, potentially explosive atmosphere, when
visibility is poor or in very high or low temperatures.
(Our recommended use environment is below 40 degrees C
(104 degrees F).)
7
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Safety Precautions
c) Do not allow bystanders in work area.
d) Do not point the blower
tube in the direction of
people or pets.
e) Always check to be sure
BEFORE STARTING THE ENGINE
• Each time before starting the engine, inspect the entire unit to
see if every part is in good order and is securely tightened in
place. If any damage is found in the fuel line, the exhaust line,
or the ignition wiring, do not use the blower until it has been
repaired.
that no debris has been
blown onto someone
else’s property.
f) Pay attention to the direction of the wind, do not work
against the wind.
IMPORTANT
Before starting operation, always make sure to check if any
obstacles are left inside the volute case and net. The
obstacles may cause serious injury or damage to fan and
volute case.
3. To minimize blowing time.
a) Use rakes and brooms to loosen debris before blowing.
b) In dusty conditions, slightly dampen surfaces or use a
mister attachment when water is available.
c) Conserve water by using power blowers instead of hoses
for many lawn and garden applications, including areas
such as gutters, screens, patios, grills, porches and
gardens.
4. The blower must not be used while on
a ladder or scaffolding.
[330BT]
[350BT] [370BTS] [380BTS]
WARNING
5. Never put the machine down with the
engine running unless you have it in
clear sight.
6. Never touch the spark plug or plug cord
while the engine is in operation. Doing
so may result in being subjected to an
electrical shock.
Check to see if the shock-absorbers <A> have become
cracked or otherwise damaged. Note that failing to replace
these rubber and spring mounts when they have become
cracked or damaged may cause the engine to come loose
from its frame during use, thus resulting in possible serious
bodily injury.
If cracked, be sure to replace without delay.
WARNING
7. Never touch the muffler, spark plug, or
other metallic parts of the engine, or
area around the engine cover while the
engine is in operation or immediately
after shutting down the engine. These
metallic parts reach high temperatures
during operation and doing so could
result in serious burns.
To reduce the risk of injury associated with contacting rotat-
ing parts, stop the engine before installing or removing
attachments. Never take off the Guard Net <B>.
Always disconnect the spark plug before performing main-
tenance or accessing movable parts.
<A>
<B>
<A>
<B>
WARNING
The temperature of the machine may
increase after stopping the engine.
Especially never forget to cool down
the engine before refueling the
machine.
<A>
<A>
[350BT] [370BTS] [380BTS]
[330BT]
8. If the engine catches fire or in any other emergency situation
that requires you to free yourself from the machine, open the
buckle in the waist belt and drop the machine backward.
USING THE PRODUCT
WARNING
9. After using blowers and other equipment, CLEAN UP!
Dispose of debris in trash receptacles.
While using the product, if abnormal noise or vibration
occurs, stop the engine immediately and contact the near-
est Husqvarna servicing dealer for assistance. Checking
the fan is very important. If the rotating fan should break up,
it might lead to serious accidents.
1. Check the work area that the blower will be used in and
remove or cover all valuables that may be damaged by the
air blast or thrown debris.
2. To reduce the risk of injury associated with thrown objects.
a) Watch out for children, pets, open windows or freshly
washed cars, and blow debris safely away.
b) Use the full blower tube extension so the air stream can
work close to the ground.
8
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Safety Precautions
MAINTENANCE
TRANSPORTATION
1. In order to maintain your product in proper working order,
perform the maintenance and checking operations described
in the manual at regular intervals.
• Drain the fuel from the fuel tank before transporting or storing
the blower.
• Secure the blower so that it does nor receive damage from
shock doing transportation.
• Do not apply strong forces to the blower, such as throwing it or
dropping it. Doing so in validates the warranty.
2. Always be sure to turn off the engine and disconnect the
spark plug before performing any maintenance or checking
procedures.
WARNING
STORAGE
The metallic parts, engine cover, and area around the
engine reach high temperatures immediately after stopping
the engine.
• When storing the blower, choose a space indoors, dry, cool
and dark, well-ventilated, free from dust and out of the reach
of children.
3. Examine the blower at intervals for loose fasteners and
rusted or damaged parts. Use special care around the fuel
line, the muffler, and the ignition wiring.
4. All engine service except for those described in this manual
should be performed by competent service personnel.
Improper service to the blower fan and muffler could cause a
hazardous failure.
5. When replacing the any other part or any lubricant, always be
sure to use only Husqvarna products or products which have
been certified by Husqvarna for use with the Husqvarna
product.
6. In the event that any part must be replaced or any
maintenance or repair work not described in this manual
must be performed, please contact the nearest Husqvarna
servicing dealer for assistance.
7. Do not use any accessory or attachment other than those
bearing the Husqvarna mark and recommended for the unit.
8. Under no circumstances should you ever take apart the
product or alter it in any way. Doing so might result in the
product becoming damaged during operation or the product
becoming unable to operate properly.
9
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What is what?
<330BT>
1
2
3
14
6
7
20
23
8
21
13
10
4
12
11
17
15
18
19
5
16
9
22
1. Frame
13. Stop Switch with Throttle Position Setting
14. Engine Cover
2. Harness
3. Spark Plug Cap
4. Throttle Lever
5. Guard Net
15. Handle Bar (Option)
16. Fan
17. Shock Absorber (Spring)
18. Shock Absorber (Rubber)
19. Band (Stopper)
20. Flexible Hose
6. Choke Lever
7. Air Cleaner
8. Volute Case, Cover
9. “CAUTION” Label
10. Elbow
21. Pipes
22. Pad
11. Fuel Tank
23. Flat Nozzle (Option)
12. Recoil Starter
„ DISPOSAL
When disposing your machine, fuel or oil for the machine, be sure to allow your local regulations.
Frame:
Harness:
Throttle lever:
PE (Polyethylene)
Chemical fiber
Metal, Plastic
Volute case, Volute cover, Engine cover: PA66GF (Glass-reinforced nylon), Brass
Pad:
Chemical fiber
Flexible hose:
Pipes:
Fan:
EVA (Ethylene vinyl acetate)
PP (Polypropylene), PE (Polyethylene)
PA66GF (Glass-reinforced nylon)
Urethane
Element:
* The insert nut of volute case and fan can be taken off.
10
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What is what?
<350BT>
1
2
3
14
18
8
6
21
10
13
7
19
4
12
11
17
15
5
16
9
20
1. Frame
12. Recoil Starter
2. Harness
13. Stop Switch with Throttle Position Setting
14. Engine Cover
3. Spark Plug Cap
4. Throttle Lever
5. Net
15. Handle Bar (Option)
16. Fan
6. Choke Lever
7. Air Cleaner
8. Volute Case, Cover
9. “CAUTION” Label
10. Elbow
17. Shock Absorber (Rubber)
18. Flexible Hose
19. Pipes
20. Pad
21. Flat Nozzle (Option)
11. Fuel Tank
„ DISPOSAL
When disposing your machine, fuel or oil for the machine, be sure to allow your local regulations.
Frame:
Harness:
Throttle lever:
PE (Polyethylene)
Chemical fiber
Metal, Plastic
Volute case, Volute cover, Engine cover: PA66GF (Glass-reinforced nylon), Brass
Pad:
Chemical fiber
Flexible hose:
Pipes:
Fan:
EVA (Ethylene vinyl acetate)
PP (Polypropylene), PE (Polyethylene)
PA66GF (Glass-reinforced nylon)
Urethane
Element:
* The insert nut of volute case and fan can be taken off.
11
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What is what?
<370BTS>
14
21
19
13
18
10
4
11
15
12
1
17
2
7
9
3
5
8
16
6
20
1. Frame
12. Recoil Starter
2. Harness
13. Stop Switch with Throttle Position Setting
14. Engine Cover
3. Spark Plug Cap
4. Throttle Lever
5. Net
15. Handle Bar (Option)
16. Fan
6. Choke Lever
7. Air Cleaner
8. Volute Case, Cover
9. “CAUTION” Label
10. Elbow
17. Shock Absorber (Rubber)
18. Flexible Hose
19. Pipes
20. Pad
21. Flat Nozzle (Option)
11. Fuel Tank
„ DISPOSAL
When disposing your machine, fuel or oil for the machine, be sure to allow your local regulations.
Frame:
Harness:
Throttle lever:
PE (Polyethylene)
Chemical fiber
Metal, Plastic
Volute case, Volute cover, Engine cover: PA66GF (Glass-reinforced nylon), Brass
Pad:
Chemical fiber
Flexible hose:
Pipes:
EVA (Ethylene vinyl acetate)
PP (Polypropylene)
Fan:
Element:
PA66GF (Glass-reinforced nylon)
Paper, Urethane
* The insert nut of volute case, volute cover and fan can be taken off.
12
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English
What is what?
<380BTS>
2
1
21
14
18
19
10
13
4
12
11
15
7
17
3
5
9
16
8
6
20
1. Frame
12. Recoil Starter
2. Harness
13. Stop Switch with Throttle Position Setting
14. Engine Cover
3. Spark Plug Cap
4. Throttle Lever
5. Net
15. Handle Bar (Option)
16. Fan
6. Choke Lever
7. Air Cleaner
8. Volute Case, Cover
9. “CAUTION” Label
10. Elbow
17. Shock Absorber (Rubber)
18. Flexible Hose
19. Pipes
20. Pad
21. Flat Nozzle (Option)
11. Fuel Tank
„ DISPOSAL
When disposing your machine, fuel or oil for the machine, be sure to allow your local regulations.
Frame:
ABS
Harness:
Throttle lever:
Chemical fiber
Metal, Plastic
Volute case, Volute cover, Engine cover: PA66GF (Glass-reinforced nylon), Brass
Pad:
Flexible hose:
Pipes:
EVA (Ethylene vinyl acetate)
EVA (Ethylene vinyl acetate)
PP (Polypropylene)
Fan:
Element:
PA66GF (Glass-reinforced nylon)
Paper, Urethane
* The insert nut of volute case, volute cover and fan can be taken off.
13
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Technical data
MODEL
330BT
350BT
370BTS
380BTS
Dimensions (L x W x H) mm (in)
295x387x432
(11.6x15.2x17)
351x446x479
(13.8x17.6x18)
365x464x485
(14x18x19)
410x509x497
(16.1x20x19.6)
Dry Weight kg (lbs) (including pipe)
Dry Weight kg (lbs) (without accessories)
Fuel Tank Capacity liter (fl. oz)
Engine Type
6.75 (14.9)
6.1 (13.4)
0.9 (30.4)
10.2 (22.5)
9.5 (20.9)
1.25 (42.3)
12 (26.5)
11.2 (24.7)
1.75 (60.0)
13.2 (29.1)
12.4 (27.3)
2.13 (72.0)
Air cooled 2-cycle gasoline engine
Piston Displacement cu. cm (cu. in)
Air Filter
29.5 (1.8)
50.2 (3.1)
64.9 (4.0)
71.9 (4.4)
Single stage filter
(half wet)
Single stage filter
2-stage fresh flow filter system
Digital Ignition
Carburetor (Diaphragm) valve type
Ignition System
Rotary
CDI
Spark Plug
NGK CMR7H
Spark arrester equipped
2200
Muffler
Idle speed rpm
3000
3000 to 6700
0.58 (19.6)
10.2 (360)
12.2 (431)
65 (145)
69
2000
Operating Engine Speed rpm
Fuel Consumption liter/h (fl. oz/h)
Average Air Volume (w/std Pipe) cu. m/min (cf/m)
Average Air Volume (@ housing) cu. m/min (cf/m)
Air velocity m/sec (mph) (Maximum)
Noise Level (50 Feet ANSI B175.2-2000) dB(A)
2200 to 6100
2000 to 6900
1.6 (54.1)
16 (565)
21.0 (742)
88 (198)
76
2000 to 6700
1.85 (62.6)
19.4 (685)
25.9 (915)
90 (201)
1.04 (35.2)
14 (494)
19.6 (692)
80 (180)
71
77
Sound power level
EC directive 2000/14/EC, measured dB (A)
102
102
90
104
104
94
110
109
Sound power level
EC directive 2000/14/EC, guaranteed dB (A)
110
Noise pressure level at the operator’s ear (LpAeq)
prEN15503 (ISO7917) dB (A)
95 (ISO7917)
0.8 (ISO7916)
3.9 (ISO7916)
100
2.2
3.5
Vibration level at idle, right handle
prEN15503 (ISO7916) m/s2
1.9
2.6
2.9
2.1
Vibration level at max, speed, right handle
prEN15503 (ISO7916) m/s2
• The data shown above are those in the case of one straight pipe.
• Specifications are subject to change without notice.
14
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Assembly
„ SWIVEL JOINT
F1
F2
1. Connect the blower and swivel joint with flexible hose. Clamp both ends of the
flexible hose securely with the hardware supplied with the unit.
NOTE
A light lubricant may be used to ease assembly of flexible hose to blower tube.
„ THROTTLE LEVER
1. Set up the throttle holder to the swivel and tighten the screw on the holder.
(2)
When setting up the holder, please make sure to match the holder to the convex on the
swivel joint as shown in F2.
2. Adjust the position and angle to achieve a comfortable working position, and tighten
the throttle lever.
(1)
(1) Cable
(2) Hose
„ THROTTLE CABLE
F3
F4
[330BT]
• Fasten the throttle cable at central position of the hose by the band attached to the
throttle cable.
First, wrap the hose with the band fixed to the throttle cable from the lower side.
Then, pass the band through a hole of the band as shown in figure.
Please note that there is a possibility of damaging the hose if the band is fastened
too tightly.
[330BT]
[350BT] [370BTS] [380BTS]
• Use the clamp to fasten the colgate tube containing the throttle cable and the power
cable to the hose.
(1) Clamp
(1)
[350BT] [370BTS] [380BTS]
„ HANDLEBAR [OPTION]
1. Insert the holder, then assemble the handlebar (OPTION) and tighten it securely.
F5
„ BLOWER TUBES
F6
F7
1. Align the protrusion and the groove provided on the tube ends and twist the tube
until the connection is locked.
NOTE
A light lubricant may be used to ease assembly of the blower tube.
NOTE
(1)
If longer tube is required, the second straight pipe can be connected with the
first one.
If higher air speed is required, the round blow pipe can be replaced by the flat
nozzle with the second straight pipe.
(1) Flat nozzle (option)
15
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Assembly
„ HARNESS
NOTE
The harness must always be worn when working with the machine. Failure to do
so means you will be unable to maneuver safely and this can result in injury to
yourself or others.
A correctly adjusted harness and machine significantly facilitates the work. Adjust the
harness to give the best working position.
F8
Tighten the side straps so that the pressure is evenly distributed across the shoulders.
F9
„ WAIST BELT [350BT] [370BTS] [380BTS]
• The waist belt is attached to the rings on the left and right sides of the frame.
F10
NOTE
330BT has no waist belt.
Place the waist belt around your waist and not too far down on the stomach. Tighten
the waist belt strap so that you feel the weight of the blower resting on your hip.
• Be sure to always tighten the buckle in front of your body.
F11
F12
WARNING
• If you are not using a waist belt, be sure to remove it from the unit and store it.
• There is a risk that the belt will be caught, toppling the unit.
• There is a danger that the belt will be sucked into the fan.
16
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Fuel
„ FUEL
„ FUELING THE UNIT
1. Untwist and remove the fuel cap.
2. Put fuel into the fuel tank to 80% of the full capacity.
WARNING
3. Fasten the fuel cap securely and wipe up any fuel spillage
around the unit.
• Gasoline is very flammable. Avoid
smoking or bringing any flame or
sparks near fuel. Make sure to
stop the engine and allow it cool
before refueling the unit. Select
outdoor bare ground for fueling
and move at least 10ft (3m) away
from the fueling point before
starting the engine.
WARNING
1. Select bare ground for fueling.
2. Move at least 10 feet (3 meters) away from the fueling
point before starting the engine.
3. Stop the engine and let it cool for a few minutes before
refueling the unit. At that time, be sure to sufficiently
agitate the mixed gasoline in the container.
• The engines are lubricated by oil
specially formulated for air-
cooled 2-cycle gasoline engine
use. If Husqvarna oil is not
4. Do not smoke or place hot objects near fuel.
available, use an anti-oxidant
added quality oil expressly
labeled for air-cooled 2-cycle
engine use. (JASO FC GRADE OIL
or ISO EGC GRADE)
• Do not use BIA or TCW (2-stroke
water-cooling type) mixed oil.
RECOMMENDED MIXING RATIO
GASOLINE 50:OIL 1
FOR YOUR ENGINE LIFE, AVOID;
1. FUEL WITH NO OIL (RAW GASOLINE) - It will cause severe
damage to the internal engine parts very quickly.
2. GASOHOL - It can cause deterioration of rubber and/or
plastic parts and disruption of engine lubrication.
3. OIL FOR 4-CYCLE ENGINE USE - It can cause spark plug
fouling, exhaust port blocking, or piston ring sticking.
4. Mixed fuels which have been left unused for a period of one
month or more may clog the carburetor and result in the
engine failing to operate properly.
5. When storing the product for a long period of time, clean the
fuel tank after rendering it empty. Next, activate the engine
and empty the carburetor of the composite fuel.
6. When scrapping the used mixed oil container, scrap it only at
an authorized repository site.
• Exhaust emission are controlled
by the fundamental engine
parameters and components (i.e., carburation, ignition
timing and port timing) without addition of any major
hardware or the introduction of an inert material during
combustion.
• These engines are certified to operate on unleaded
gasoline.
• Make sure to use gasoline with a minimum octane
number of 89 RON (USA/Canada: 87AL)
• If you use a gasoline of a lower octane value than
specified, there is a danger that the engine temperature
may rise and an engine problem such as piston seizing
may consequently occur.
• Unleaded gasoline is recommended to reduce the
contamination of the air for the sake of your health and
the environment.
• Poor quality gasolines or oils may damage sealing rings,
fuel lines or fuel tank of the engine.
NOTE
For details of quality assurance, read the description in the
Warranty section carefully. Moreover, normal wear and
change in product with no functional influence are not
covered by the warranty. Also, note that if the usage in the
instruction manual is not observed for the mixed gasoline,
etc. as described herein, it may not be covered by the
warranty.
„ HOW TO MIX FUEL
IMPORTANT
Pay attention to agitation.
1. Measure out the quantities of gasoline and oil to be mixed.
2. Put some of the gasoline into a clean, approved fuel
container.
3. Pour in all of the oil and agitate well.
4. Pour in the rest of gasoline and agitate again for at least one
minute. As some oils may be difficult to agitate depending on
oil ingredients, sufficient agitation is necessary for the engine
to last long. Note that, if the agitation is insufficient, there is
an increased danger of early piston seizing due to an
abnormally lean mixture.
5. Indicate the contents on outside of container for easy
identification to avoid mixing with raw gasoline or other
containers.
17
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Operation
„ STARTING ENGINE
IMPORTANT
• Avoid operating the blower with the flexible tube and swivel joint
disconnected. That will reduce the cooling air and the engine could be
damaged by overheating.
(1)
F13
(4)
(3)
1. Push the primer bulb until fuel flows out in the clear tube.
2. When the engine is cool, close the choke.
(1) Choke Lever
(2) Primer Bulb
(3) OPEN
[330BT]
(2)
(4) CLOSE
F14
(1)
(3)
(4)
(2)
[350BT]
(1)
F15
(3)
(4)
(2)
(3)
[370BTS] [380BTS]
3. Set the throttle lever position.
F16
F17
[330BT]
Idling
[350BT] [370BTS] [380BTS]
About 1/3 Open
(2)
(1)
(4)
(1) Full Throttle
(2) About 1/3 Open
(3) Idling
(4) STOP
4. To start, hold the top of the blower firmly with your left hand. Pull the starter knob
slowly until you feel it engage and then give it a vigorous strong pull.
IMPORTANT
• Never twist the starter cord around your hand.
• Avoid pulling the starter rope out to its full extent and allowing the starter rope
to snap back. This will prevent premature damage to the starter.
• Do not let a person stand near the blower or the exhaust port.
5. Once the engine is running, gradually open the choke if it was set closed, and let the
engine run at idle speed for a minute to warm it up.
NOTE
When the engine fails to start after several attempts due to overchoking, open
the choke and repeat pulling the rope.
WARNING
Air comes out as soon as the engine is started, even at idle speed.
18
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Operation
„ ADJUSTING IDLE SPEED
[330BT]
• The idling speed is set for 3000 rpm at the factory. If it is necessary to adjust the idle
speed, use the adjustment screw on the top side of carburetor.
F18
(1)
(1) Idling Adjustment Screw
[330BT][350BT]
[350BT] [370BTS] [380BTS]
• The idling speed is set for 2200 rpm [350BT] or 2000 rpm [370BTS/380BTS] at the
factory. If it is necessary to adjust the idle speed, use the adjustment screw on the
top side of carburetor.
F19
(1)
(1) Idling Adjustment Screw
[370BTS] [380BTS]
„ STOPPING ENGINE
F20
F21
• Move the throttle lever to the STOP position.
(2)
(3)
(4)
(1)
(4) Stop
NOTE
If the engine does not stop when setting the ignition switch to the stop position,
close the choke lever and stop the engine.
In this case, please repair the machine at your nearest servicing dealer.
(1)
(3)
(1) Choke Lever
(2) OPEN
(3) CLOSE
(2)
[330BT]
F22
F23
(1)
(3)
(4)
(2)
[350BT]
(1)
(2)
(3)
[370BTS] [380BTS]
19
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Maintenance
Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair
establishment or individual.
Daily or
Before use
Every 25
hours after
Every 50
hours after
Every 100
hours after
System/Compornent
Procedure
Air Filter
Prefilter
Inspect/Clean
Inspect/Replace
Inspect/Replace
Inspect/Replace
Inspect/Clean
Inspect/Clean
Inspect/Clean
Tighten
9
Paper Filter (370 only)
9
Fuel Leaks
Fuel Filter
Fuel Line
Spark Plug
Muffler
9
9
9
9
9
9
9
9
Bolts on muffler
Entire unit
Inspect/Replace
Inspect/Clean
Inspect/Clean
Tighten
Muffler Spark Arrester
Cooling System
Screws/Nuts/Bolts
Cylinder Exhaust Port
9
9
9
Inspect/Clean
9
WARNING
Make sure that the engine has stopped and is cool before performing any service
to the blower. Contact with rotating blower fan or hot muffler may result in a
personal injury.
„ AIR CLEANER
• Check the air cleaner before use.
A clogged air filter may increase fuel consumption while cutting down the engine
power.
• Never operate the blower without an air filter or with a deformed or broken filter
element because unfiltered dusty air will quickly ruin the engine.
[370BTS] [380BTS]
• Never clean the paper filter by tapping on it. Doing so may break the element,
causing dust to get sucked into the blower and damaging the engine.
F24
CLEANING AIR FILTER:
(1)
[330BT] (F24)
(2)
1. Unscrew the knob and remove the air cleaner cover.
(1) Knob
(2) Element
(3) Screen
2. Wash the filter element in fresh, non flammable cleaning solution (ex. warm soapy
water) and then dry.
(Clean the air filter once in a week.)
3. Reinstall the filter. Never forget to attach the screen. If the screen is not attached,
the cleaner will not seal properly and the dusts come into the cylinder.
4. Hook the slots of cover (4) on the tabs of body (5) and screw the knob.
(3)
(4)
(5)
[350BT] (F25)
[330BT]
1. Unscrew the 2 knobs and remove the air cleaner cover.
(1) Knob
(3) Screen
(2) Element
(4) Packing
F25
2. Wash the filter element with neutral detergent and warm water and then dry
completely.
(2)
(1)
(Clean the air filter once in the week.)
3. Moisten the filter element with a small amount of 2 cycle oil.
NOTE
• Do not apply 4 cycle motor oil as they may damage element.
• Do not use mixture gasoline. This type of gasoline does not contain much of
oil, so that the element becomes dry after a few hours.
• Soak the filter element into a 2 cycle motor oil.
(3)
(4)
Squeeze the element to remove excess oil so that it weighs 2 to 3 times
heavier than it was dried.
[350BT]
4. Reinstall the element into the packing,set the packing into the air cleaner body.
Never forget to attach the screen properly. If the screen is not attached, the cleaner will not seal
properly and the dusts come into the cylinder.
5. Reinstall the air cleaner cover and screw the 2 knobs.
20
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Maintenance
[370BTS] [380BTS] (F26)
1. Unscrew 2 knob bolts and remove the air cleaner cover. Then remove the prefilter
(1)
F26
mounted inside the air cleaner cover.
(1) Knob Bolt
(3) Inner Case [380BTS]
(2) Prefilter
(4) Paper Filter
(2)
2. Wash the prefilter in fresh, non flammable cleaning solution (ex. warm soapy water)
and then dry.
(380BTS ONLY)
(3)
(Clean the air filter once in a week.)
3. Exchange the paper filter element with new one in case it has been contaminated.
(4)
WARNING
• This prefilter is dry type.
• Never wash the prefilter in an oily cleaning solution.
• Never include oil in the wash.
[370BTS] [380BTS]
• Do not clean the paper filter by tapping on it.
„ FUEL FILTER
F27
F28
• A clogged fuel filter may cause poor acceleration of the engine. Check periodically to
see if the filter is clogged with dirt. The filter can be taken out of the fueling port using
a small wire hook. Disconnect the filter assembly from the fuel pipe and unhook the
retainer to disassemble it. Clean the components with gasoline.
(1) Screen
(3) Holder
(2) Element (x 2)
(4) Retainer
„ SPARK PLUG
• The spark plug may gather carbon deposits on its firing end with reasonable use.
Remove and inspect the spark plug every 25 hours and clean the electrodes as
necessary with a wire brush. The spark gap should be adjusted to .025 in (0.6 to
0.7mm).
• Plug manufacturers recommend replacing the plug twice a year to avoid unexpected
plug failure in a job.
REPLACEMENT PLUG IS A NGK CMR7H.
IMPORTANT
• Note that using any spark plugs other than those designated may result in the
engine failing to operate properly or in the engine becoming overheated and
damaged.
• To install the spark plug, first turn the plug with your hands until it is tight, then
tighten it a quarter turn more with a socket wrench.
„ MUFFLER
F29
(2)
WARNING
• Periodically inspect the muffler for loose fasteners, damage or corrosion. If
any sign of exhaust leakage is found, do not use the blower and have it
repaired immediately.
1. Remove the muffler, insert a screwdriver into the vent, and wipe away any carbon
buildup. Wipe away any carbon buildup on the muffler exhaust vent and cylinder
exhaust port at the same time.
(4)
(3)
(1)
2. Tighten all screws, bolts, and fittings.
[330BT]
„ SPARK ARRESTER
• The muffler is equipped with a spark arrester to prevent red hot carbon from flying
out of the exhaust outlet. Periodically inspect and clean as necessary with a wire
brush.
(2)
F30
(1) Bolt
(2) Bolt
(3) Spark Arrester
(4) Diffuser
(3)
WARNING
(4)
• Before starting operation, always make sure to check if the muffler is properly
held by the bolts (2).
Fastening Torque: [330BT]
7 to 11 N·m
[350BT] [370BTS] [380BTS]
8 to 12 N·m
(1)
(2)
• Also make sure that the spark arrester and the diffuser are properly attached
with the bolts (1). (Fastening Torque : 2 to 3 N·m)
[350BT] [370BTS] [380BTS]
21
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Maintenance
„ AIR INLET NET
F31
(1)
IMPORTANT
• Blown air is taken in from the air inlet net. If the air flow drops during opera-
tion, stop the engine and inspect the air inlet net for blockage by obstacles.
• Note that failure to remove any such obstacles may result in the engine
becoming overheated and damaged.
(1) Net
[330BT]
WARNING
Never use the blower without the net on the blower. Before each use, check that
the net is attached in place and is free from any damage.
F32
(1)
[350BT] [370BTS] [380BTS]
„ IGNITION COIL AIR GAP INSPECTION
• If the gap is not accurate or when installing the coil or rotor, adjust the air gap
between the ignition coil and the iron core of the rotor.
F33
(2)
Air Gap: [330BT]
0.35 mm (0.30 to 0.40 mm)
0.014 in (0.012 to 0.016 in)
[350BT] [370BTS] [380BTS]
0.40 mm (0.35 to 0.45 mm)
0.016 in (0.014 to 0.017 in)
(1)
(1) Rotor
[330BT]
(2) Ignition coil
F34
[350BT] [370BTS] [380BTS]
„ SHOLDER STRAP
• If the shoulder strap is damaged it may break during use, thus causing the product
to fall and resulting in personal injury. Follow the instructions below to replace the
shoulder strap with new one.
F35
• Take off the clip from the strap.
• Pass the end of the strap through the hanger.
• Return the clip to the strap.
IMPORTANT
Make sure that the thick round bar of the clip is in the strap.
If it is attached in the wrong way, it leads to serious personal injury.
Storage
BEFORE STORING THE BLOWER:
1. Drain the fuel tank and push the primer bulb until it becomes empty of fuel.
2. Remove the spark plug and drop a spoonful of 2-cycle oil into the cylider. Crank the engine several time and install the spark plug.
3. Store unit in a dry, cool and dark, well-ventilated, dust-free place, out of the reach of children.
22
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