Page 1
Operator’s manual (EPA)
324HDA55
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
X-series
EEEEnnnngggglllliiiisssshh
hh
Page 2
KEY TO SYMBOLS
Symbols
WARNING!
Incorrect or careless use of a hedge
trimmer can turn it into a dangerous tool
that can cause serious or even fatal injury.
It is extremely important that you read and
understand the contents of this operator’s
manual.
Please read the operator’s manual carefully
and make sure you understand the
instructions before using the machine.
Always wear:
• Approved hearing protection
• Protective goggles or a visor
Cutting tool. Do not touch the tool without
first switching off the engine.
Other symbols/decals on the machine refer to special
certification requirements for certain markets.
Switch off the engine by moving the stop
switch to the STOP position before carrying
out any checks or maintenance.
Always wear approved protective gloves.
Regular cleaning is required.
Visual check.
Protective goggles or a visor must be worn.
This machine is not electrically insulated.
If the machine touches or comes close to
high-voltage power lines it could lead to
death or serious bodily injury. Electricity can
jump from one point to another by arcing.
The higher the voltage, the greater the
distance electricity can jump. Electricity can
also travel through branches and other
objects, especially if they are wet. Always
keep a distance of at least 10 m between the machine and
high-voltage power lines and/or any objects that are touching
them. If have to work within this safe distance you should
always contact the relevant power company to make sure the
power is switched off before you start work.
This machine can be dangerous! The operator of the machine
must ensure, while working, that no persons or animals come
closer than 15 metres.
Arrows which show limits for handle
positioning.
Always wear approved protective gloves.
Wear sturdy, non-slip boots.
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CONTENTS
Contents
KEY TO SYMBOLS
Symbols ....................................................................... 2
CONTENTS
Contents ......................................................................
Note the following before starting: ................................ 3
SAFETY INSTRUCTIONS
Personal protective equipment .....................................
Machine ′ s safety equipment ........................................ 4
Checking, maintaining and servicing the machine ′ s
safety equipment ..........................................................
General safety precautions .......................................... 8
Safety instructions when using the hedge trimmer ...... 9
WHAT IS WHAT?
What is what? ..............................................................
ASSEMBLY
Fitting the hand guard and loop handle .......................
Fitting the cutting head ................................................ 12
FUEL HANDLING
Fuel ..............................................................................
STARTING AND STOPPING
Check before starting ................................................... 14
Starting and stopping ................................................... 14
MAINTENANCE
Carburettor ...................................................................
Muffler .......................................................................... 15
Cooling system ............................................................ 15
Spark plug .................................................................... 15
Air filter ......................................................................... 16
Gear housing ............................................................... 16
Cleaning and lubrication .............................................. 16
Maintenance schedule ................................................. 17
TECHNICAL DATA
Technical data ..............................................................
FEDERAL EMISSION CONTROL WARRANTY
STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS .....
3
4
6
11
12
13
15
18
19
Note the following before starting:
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.
Long-term exposure to noise can result in permanent hearing
impairment. So always use approved hearing protection.
WARNING! 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.
Your warranty may not cover damage or
liability caused by the use of non-authorized
accessories or replacement parts.
WARNING! Incorrect or careless use of a
hedge trimmer can turn it into a dangerous
!
tool that can cause serious or even fatal
injury. It is extremely important that you read
and understand the contents of this
operator’s manual.
The Emissions Compliance Period referred to on the
Emission Compliance label indicates the number of operating
hours for which the engine has been shown to meet Federal
emissions requirements. Category C = 50 hours, B = 125
hours, and A = 300 hours.
For customer assistance call: 704-921-7000 or contact us at
our website: www.husqvarna.com
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Page 4
SAFETY INSTRUCTIONS
Personal protective equipment
IMPORTANT! You must use approved personal protective
equipment whenever you use the machine. Personal
protective equipment cannot eliminate the risk of injury but
it will reduce the degree of injury if an accident does
happen. Ask your dealer for help in choosing the right
equipment.
WARNING! Listen out for warning signals or
shouts when you are wearing hearing
!
protection. Always remove your hearing
protection as soon as the engine stops.
GLOVES
Gloves must be worn when required, for example when fitting,
inspecting or cleaning cutting attachments.
HEARING PROTECTION
Wear hearing protection that provides adequate noise
reduction.
FIRST AID KIT
Always have a first aid kit nearby.
Machine ′′
This section describes the machine ′ s safety equipment, its
purpose, and how checks and maintenance should be carried
out to ensure that it operates correctly. See the ”What is
what?” section to locate where this equipment is positioned
on your machine.
The life span of the machine can be reduced and the risk of
accidents can increase if machine maintenance is not carried
out correctly and if service and/or repairs are not carried out
professionally. If you need further information please contact
your nearest service workshop.
!
′′
s safety equipment
WARNING! Never use a machine that has
faulty safety equipment! Carry out the
inspection, maintenance and service
routines listed in this section.
Throttle lock
EYE PROTECTION
Always wear approved eye protection. If you use a visor then
you must also wear approved protective goggles. Approved
protective goggles must comply with standard ANSI Z87.1 in
the USA or EN 166 in EU countries. Visors must comply with
standard EN 1731.
BOOTS
Wear sturdy, non-slip boots.
The throttle lock is designed to prevent accidental operation
of the throttle control. When you press the lock (A) (i.e. when
you grasp the handle) it releases the throttle control (B).
When you release the handle the throttle control and the
throttle lock both move back to their original positions. This
movement is controlled by two independent return springs.
This arrangement means that the throttle control is
automatically locked at the idle setting.
Stop switch
Use the stop switch to switch off the engine.
CLOTHING
Wear clothes made of a strong fabric and avoid loose clothing
that can catch on twigs and branches. Always wear heavy,
long pants. Do not wear jewellery, shorts sandals or go
barefoot. Secure hair so it is above shoulder level.
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Page 5
A
B
SAFETY INSTRUCTIONS
Hand guard
The hand guard prevents hands from coming into contact with
the moving blades, for example, if the operator loses grip on
the front handle.
Vibration damping system
Your machine is equipped with a vibration damping system
that is designed to minimize vibration and make operation
easier.
The machine ′ s vibration damping system reduces the transfer
of vibration between the engine unit/cutting equipment and
the machine ′ s handle unit.
In countries that have a warm and dry climate there is a
significant risk of fire. We therefore fit certain mufflers with a
spark arrestor mesh. Check whether the muffler on your
machine is fitted with this kind of mesh.
For mufflers it is very important that you follow the instructions
on checking, maintaining and servicing your machine. See
instructions under the heading Checking, maintaining and
servicing the machine’s safety equipment.
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
!
remain so for some time after stopping. This
also applies at idle speed. Contact can result
in burns to the skin. Remember the risk of
fire!
WARNING! The inside of the muffler contain
chemicals that may be carcinogenic. Avoid
!
contact with these elements in the event of a
damaged muffler.
WARNING! Overexposure to vibration can
lead to circulatory damage or nerve damage
!
in people who have impaired circulation.
Contact your doctor if you experience
symptoms of overexposure to vibration.
Such symptoms include numbness, loss of
feeling, tingling, pricking, pain, loss of
strength, changes in skin colour or
condition. These symptoms normally appear
in the fingers, hands or wrists. The risk
increases at low temperatures.
Muffler
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user.
WARNING! Bear in mind that:
!
Engine exhaust fumes contain carbon
monoxide, which can cause carbon
monoxide poisoning. For this reason you
should not start or run the machine indoors,
or anywhere that is poorly ventilated.
The exhaust fumes from the engine are hot
and may contain sparks which can start a
fire. Never start the machine indoors or near
combustible material!
Blade guard
The blade guard (A) is intended to protect against any part of
the body coming into contact with the blades (B).
A muffler fitted with a catalytic converter is also designed to
reduce harmful exhaust gases.
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Page 6
SAFETY INSTRUCTIONS
Checking, maintaining and servicing
the machine ′′
WARNING! All servicing and repair work on
the machine requires special training. This is
!
especially true of the machine
equipment. If your machine fails any of the
checks described below you must contact
your service agent. When you buy any of our
products we guarantee the availability of
professional repairs and service. If the
retailer who sells your machine is not a
servicing dealer, ask him for the address of
your nearest service agent.
WARNING! Never use a machine with faulty
safety equipment. The machine’s safety
!
equipment must be checked and maintained
as described in this section. If your machine
fails any of these checks contact your
service agent to get it repaired.
WARNING! Always stop the engine before
doing any work on the cutting attachment.
!
This continues to rotate even after the
throttle has been released. Ensure that the
cutting attachment has stopped completely
and disconnect the HT lead from the spark
plug before you start to work on it.
′′
s safety equipment
′′
s safety
′′
• See instructions under the heading Start. Start the hedge
trimmer and apply full throttle. Release the throttle trigger
and check that the blades stop and remain stationary. If
the blades move when the throttle trigger is in the idle
position then the carburettor idle setting must be adjusted.
See instructions under the heading Maintenance.
Stop switch
• Start the engine and make sure the engine stops when
you move the stop switch to the stop setting.
Hand guard
• Check that the hand guard is fitted correctly.
• Check that the hand guard is undamaged.
Throttle lock
• Make sure the throttle control is locked at the idle setting
when the throttle lock is released.
• Press the throttle lock and make sure it returns to its
original position when you release it.
• Check that the throttle control and throttle lock move freely
and that the return springs work properly.
Vibration damping system
• Regularly check the vibration damping units for cracks or
deformation.
• Check that the vibration damping element is undamaged
and securely attached.
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Page 7
A
B
SAFETY INSTRUCTIONS
Muffler
• Never use a machine that has a faulty muffler.
• Regularly check that the muffler is securely attached to
the machine.
• If the muffler on your machine is fitted with a spark
arrestor mesh this must be cleaned regularly. A blocked
mesh will cause the engine to overheat and may lead to
serious damage. Never use a muffler with a defective
spark arrestor mesh.
Blade guard
• Check that the blade guard is not damaged or distorted.
• Replace the blade guard if it is bent or damaged.
Gear housing
• The gear housing gets hot when the machine has been in
use. To avoid burning yourself do not touch the gear
housing.
Blades
To ensure good cutting results it is important that the contact
pressure between the blades is correct. The contact pressure
is adjusted by turning the screws on the underside of the bar
clockwise as far as they will go. Then turn the screws
anticlockwise a 1/4 turn. Lock the screws using the locking nut
on the top of the bar. Check that the screws are loose enough
to allow the washers under the screw heads to slide sideways.
When the blades are correctly adjusted the play between the
blades should be 0,2–0,4 mm, measured at the screws.
The edges of the blades are too hard to be filed. Dull blades
should be sharpened using a grinder.
Replace the blades if they are bent or damaged.
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Page 8
SAFETY INSTRUCTIONS
General safety precautions
IMPORTANT!
The machine is only designed for cutting branches and
twigs.
Never use the machine if you are tired, if you have drunk
alcohol, or if you are taking medication that could affect your
vision, your judgement or your co-ordination.
Wear personal protective equipment. See instructions
under the heading Personal protective equipment.
Never use a machine that has been modified in any way
from its original specification.
Never use the machine in extreme weather conditions such
as severe cold, very hot and/or humid climates.
Never use a machine that is faulty. Carry out the checks,
maintenance and service instructions described in this
manual. Some maintenance and service measures must be
carried out by trained and qualified specialists. See
instructions under the heading Maintenance.
All covers and guards must be fitted before starting. Make
sure the spark plug cap and HT lead are not damaged.
Otherwise you could get an electric shock.
WARNING! Faulty blades can increase the
risk of accidents.
!
Starting
Fuel safety
• Always use a fuel container with an anti-spill valve.
• Never refuel the machine while the engine is running.
Always stop the engine and let it cool for a few minutes
before refuelling.
• Always ensure there is adequate ventilation when
handling fuel.
• Move the machine at least 3 m from the refuelling point
before starting it.
• Never start the machine:
1 If you have spilt fuel on it. Wipe off the spillage and allow
remaining fuel to evaporate.
2 If you have spilt fuel on yourself or your clothes, change
your clothes. Wash any part of your body that has come in
contact with fuel. Use soap and water.
3 If the machine is leaking fuel. Check regularly for leaks
from the fuel cap and fuel lines.
4 Avoid all skin contact with fuel. Fuel is a skin irritant and
may even cause skin changes.
• The complete clutch cover and shaft must be fitted before
the machine is started, otherwise the clutch can come
loose and cause personal injury.
• Never start the machine indoors. Exhaust fumes can be
dangerous if inhaled.
• Observe your surroundings and make sure that there is no
risk of people or animals coming into contact with the
cutting equipment.
• Place the machine on the ground, ensure the cutting
attachment is clear of twigs and stones. Hold the body of
the machine on the ground using your left hand
(CAUTION! Not with your foot). Then grip the starter
handle with your right hand and pull the starter cord.
Transport and storage
• Store and transport the machine and fuel so that there is
no risk of any leakage or fumes coming into contact with
sparks or naked flames, for example, from electrical
machinery, electric motors, electrical relays/switches or
boilers.
• When storing and transporting fuel always use approved
containers intended for this purpose.
• When storing the machine for long periods the fuel tank
must be emptied. Contact your local gas station to find out
where to dispose of excess fuel.
• The transport guard must always be fitted to the cutting
attachment when the machine is being transported or in
storage.
• Ensure the machine is cleaned and that a complete
service is carried out before long-term storage.
WARNING! Take care when handling fuel.
Bear in mind the risk of fire, explosion and
!
inhaling fumes.
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Page 9
SAFETY INSTRUCTIONS
Safety instructions when using the hedge trimmer
WARNING! The machine can cause serious
personal injury. Read the safety instructions
!
carefully. Learn how to use the machine.
WARNING! Cutting tool. Do not touch the
tool without first switching off the engine.
!
CAUTION! Please read the operator’s manual carefully and
make sure you understand the instructions before using the
machine.
Personal protection
Safety instructions while working
• Always ensure you have a safe and stable working
position.
• Always use both hands to hold the machine. Hold the
machine at the side of your body.
• Use your right hand to control the throttle setting.
• Always wear boots and other equipment described under
the heading Personal protective equipment.
• Always wear working clothes and heavy-duty long
trousers.
• Never wear loose clothing or jewellery.
• Make sure your hair does not hang below shoulder level.
Safety instructions regarding the surroundings
• Never allow children to use the machine.
• Ensure that no-one comes closer than 15 m while you are
working.
• Never allow anyone else to use the machine without first
ensuring that they have understood the contents of the
operator’s manual.
• Never work from a ladder, stool or any other raised
position that is not fully secured.
• Make sure that your hands and feet do not come near the
cutting attachment when the engine is running.
• When the engine is switched off, keep your hands and feet
away from the cutting attachment until it has stopped
completely.
• Watch out for stumps of branches that can be thrown out
during cutting.
• Always lay the machine on the ground when you are not
using it.
• Do not cut too close to the ground. Stones and other
objects can be thrown out.
• Check the working area for foreign objects such as
electricity cables, insects and animals, etc, or other
objects that could damage the cutting attachment, such
as metal items.
• If any foreign object is hit or if vibrations occur stop the
machine immediately. Disconnect the HT lead from the
spark plug. Check that the machine is not damaged.
Repair any damage.
• If anything jams in the blades while you are working,
switch off the engine and wait until it has stopped
completely before cleaning the blades. Disconnect the HT
lead from the spark plug.
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Page 10
SAFETY INSTRUCTIONS
Safety instructions after completing work
• The transport guard should always be fitted to the cutting
attachment when the machine is not in use.
• Make sure the cutting attachment has stopped before
cleaning, carrying out repairs or an inspection.
Disconnect the HT lead from the spark plug.
• Always wear heavy-duty gloves when repairing the cutting
attachment. This is extremely sharp and can easily cause
cuts.
• Store the machine out of reach of children.
• Use only original spare parts for repairs.
Basic working techniques
• Work with a swinging action from the bottom upwards
when trimming sides.
Changing the hedge trimmer angle
• Undo the knob.
• Press the cutting head against the ground or some other
solid object until the desired angle has been obtained.
• Tighten the knob.
WARNING! Do not hold the cutting head
when you adjust the angle. The blades are
!
sharp and you could easily cut yourself.
• Adjust the throttle setting to suit the load.
• When trimming a hedge the engine should always face
away from the hedge.
• Hold the machine as close to your body as possible to get
the best balance.
• Make sure that the tip does not touch the ground.
• Do not rush the work, but work steadily until all the
branches have been cut back cleanly.
10 –
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Page 11
WHAT IS WHAT?
21
22
19
18
17
8
7
20
9
10
16
15
11
13
14
12
23
What is what?
1 Cutter
2 Grease nipples (3)
3 Bevel gear
4 Blade guard
5 Shaft
6 Front handle
7 Throttle control
8 Stop switch
9 Throttle lock
10 Cylinder cover
11 Starter handle
12 Fuel tank
13 Choke control
14 Air purge
15 Air filter cover.
16 Clutch cover
17 Hand guard mounting screw
18 Angle adjustment knob
19 Hand guard
20 Combination spanner
21 Operator’s manual (EPA)
22 Transport guard
23 Allen key
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Page 12
ASSEMBLY
Fitting the hand guard and loop handle
1 Assemble the hand guard and loop handle by screwing
them together. Take care to align the holes in both parts.
2 Slide the loop handle and hand guard onto the shaft.
3 Slide the spacer into the slot in the loop handle.
4 Fit the nut and screw. Do not overtighten.
5 Now make a final adjustment to give yourself a
comfortable working position. Tighten the screw.
CAUTION! The loop handle and hand guard must not be
fitted behind the arrow marked on the shaft.
Fitting the cutting head
It is important that the hedge trimmer is laid on a flat surface
when you fit the cutting head. Otherwise the cutting head may
not be fitted straight.
1 Fit the cutting head to the shaft. CAUTION! Make sure the
drive shaft inside the shaft engages with the recess in the
cutting head.
2 Tighten the lower screw first, then the upper screw.
12 –
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Page 13
FUEL HANDLING
Fuel
CAUTION! The machine is equipped with a four-stroke
engine. Make sure that there is always sufficient oil in the oil
tank.
WARNING! Always ensure there is adequate
ventilation when handling fuel.
!
The catalytic converter muffler gets very hot
during and after use. This also applies
during idling. Be aware of the fire hazard,
especially when working near flammable
substances and/or vapours.
Gasoline
• Use high-grade unleaded petrol of at least 86 octane.
• If the machine is not used for some time the fuel tank
should be emptied and cleaned.
Engine oil
Check the oil level before starting the machine. A too low oil
level can cause serious damage to the engine.
When the machine is new the engine oil should be changed
after the first month or after 10 hours of operation.
• For the best result and function use HUSQVARNA engin
oil.
• When HUSQVARNA engine oil is not available another
high grade engine oil can be used. Contact your dealer
when selecting oil. Mineral oil or semisynthetic oil should
be used. In general SAE 10W-40 is recommended.
• Never use oil intended for two-stroke engines.
When the oil level is low, top up using engine oil to the edge
of the oil refill hole.
Only use recommended engine oil.
Fuelling
WARNING! Taking the following precautions,
will lessen the risk of fire:
!
Do not smoke or place hot objects near fuel.
Always shut off the engine before refuelling.
When refuelling, open the fuel cap slowly so
that any excess pressure is released gently.
Tighten the fuel cap carefully after refuelling.
Always move the machine away from the
refuelling area before starting.
Clean around the fuel cap. Clean the fuel and oil tank
regularly. The fuel filter should be changed at least once a
year. Contamination in the tanks causes malfunction.
Always move the machine about 3 metres from the refuelling
position before starting.
Oil level
The machine must be switched off and placed on a flat
surface when you check the oil level.
Unscrew the oil cap, clean the dipstick located on the cap and
insert the cap again without screwing it down. Check the oil
level on the dipstick.
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Page 14
STARTING AND STOPPING
OIL
Check before starting
• Inspect the working area. Remove any objects that could
be thrown out.
• Check the cutting attachment. Never use blades that are
dull, cracked or damaged.
• Check that the machine is in perfect working order. Check
that all nuts and screws are tight.
• Make sure the gear housing is lubricated correctly. See
instructions under the heading Gear housing.
• Check that the cutting attachment always stops when the
engine is idling.
• Only use the machine for the purpose it was intended for.
• Make sure that the handle and safety features are in good
working order. Never use a machine that lacks a part or
has been modified outside its specifications.
• All covers must be correctly fitted and undamaged before
you start the machine.
Warm engine
Ignition: Set the stop switch to the start position.
Choke: Put the choke in working position.
Primer bulb: Press the primer bulb repeatedly until fuel
begins to fill the bulb. The bulb need not be completely filled.
Starting
Starting and stopping
WARNING! The complete clutch cover and
gear housing must be fitted before the
!
machine is started, otherwise the clutch may
come loose and cause personal injury.
Always move the machine about 3 metres
from the refuelling position before starting.
Place the machine on a firm surface.
Remember that the blades may start to move
when the engine is started. Make sure the
blades cannot come into contact with any
object. Make sure that no unauthorised
persons are in the working area, otherwise
there is a risk of serious personal injury.
Cold engine
Ignition: Set the stop switch to the start position.
Hold the body of the machine on the ground using your left
hand (CAUTION! Not with your foot!). Grip the starter handle,
slowly pull out the cord with your right hand until you feel
some resistance (the starter pawls grip), now quickly and
powerfully pull the cord. Never wrap the starter cord around
your hand Reset the choke control as soon as the engine
starts
CAUTION! Do not pull the starter cord all the way out and do
not let go of the starter handle when the cord is fully extended.
This can damage the machine.
Stopping
The engine is stopped by moving the stop switch to the stop
position.
Choke: Set the choke control in the choke position.
Primer bulb: Press the primer bulb repeatedly until fuel
begins to fill the bulb. The bulb need not be completely filled.
OIL
14 – English
Page 15
MAINTENANCE
Carburettor
WARNING! The complete clutch cover and
shaft must be fitted before the machine is
!
started, otherwise the clutch can come loose
and cause personal injury.
Function
• The carburettor governs the engine’s speed via the
throttle control. Air and fuel are mixed in the carburettor.
The air/fuel mixture is adjustable. Correct adjustment is
essential to get the best performance from the machine.
• Adjusting the carburettor involves adapting the engine to
suit local conditions, e.g. climate, altitude and the petrol.
Basic setting
The basic carburettor settings are adjusted during testing at
the factory.
The carburettor should be adjusted to prevent damaging the
engine when the machine is always used at altitudes over
1500 metres above seal level.
CAUTION! For optimum adjustment of the carburettor,
contact a qualified dealer/service workshop that has a
revolution counter at their disposal.
The muffler on your machine is equipped with a spark arrestor
mesh, this should be cleaned regularly. A blocked mesh will
cause the engine to overheat and may lead to serious
damage.
CAUTION! Never use a machine with a defective muffler.
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
!
remain so for some time after stopping. This
also applies at idle speed. Contact can result
in burns to the skin. Remember the risk of
fire!
Cooling system
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
Muffler
CAUTION! Some mufflers are fitted with a catalytic converter.
See chapter on Technical data to see whether your machine
is fitted with a catalytic converter.
The muffler is designed to reduce the noise level and to direct
the exhaust gases away from the operator. The exhaust
gases are hot and can contain sparks, which may cause fire
if directed against dry and combustible material.
The cooling system consists of:
1 Air intake on the starter.
2 Fins on the flywheel.
3 Cooling fins on the cylinder.
4 Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
Spark plug
The spark plug condition is influenced by:
• Incorrect carburettor adjustment.
• A dirty air filter.
These factors cause deposits on the spark plug electrodes,
which may result in operating problems and starting
difficulties.
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Page 16
MAINTENANCE
If the machine is low on power, difficult to start or runs poorly
at idle speed: always check the spark plug first before taking
any further action. If the spark plug is dirty, clean it and check
that the electrode gap is 0,6-0,7 mm. The spark plug should
be replaced after about a month in operation or earlier if
necessary.
CAUTION! Always use the recommended spark plug type!
Use of the wrong spark plug can damage the piston/cylinder.
Check that the spark plug is fitted with a suppressor.
Air filter
The air filter must be regularly cleaned to remove dust and dirt
in order to avoid:
• Carburettor malfunctions
• Starting problems
• Loss of engine power
• Unnecessary wear to engine parts
• Excessive fuel consumption.
Clean the filter every 25 hours, or more regularly if conditions
are exceptionally dusty.
Oiling the air filter
Always use HUSQVARNA filter oil, art. no. 531 00 92-48. The
filter oil contains a solvent to make it spread evenly through
the filter. You should therefore avoid skin contact.
Put the filter in a plastic bag and pour the filter oil over it.
Knead the plastic bag to distribute the oil. Squeeze the
excess oil out of the filter inside the plastic bag and pour off
the excess before fitting the filter to the machine. Never use
common engine oil. This would drain through the filter quite
quickly and collect in the bottom.
Gear housing
There are three grease nipples on the gear housing. Use a
grease gun to top up with grease. This should be carried out
approximately every 20 working hours. Use Husqvarna
special grease, part no. 503 98 96-01.
Cleaning the air filter
Remove the air filter cover and take out the filter. Wash it
clean in warm, soapy water.
Ensure that the filter is dry before refitting it.
An air filter that has been in use for a long time cannot be
cleaned completely. The filter must therefore be replaced with
a new one at regular intervals. A damaged air filter must
always be replaced.
If the machine is used in dusty conditions the air filter should
be soaked in oil. See instructions under the heading Oiling the
air filter.
CAUTION! The gear housing must not be filled completely
with grease. The grease expands as the machine heats up
during operation. If the gear housing was completely filled
with grease it could damage the seals and lead to leakage of
grease.
The grease in the bevel gear does not normally need to be
changed except if repairs are carried out.
Cleaning and lubrication
Clean any resin and plant residue from the blades using
cleaning agent 531 00 60-75 (UL22) before and after using
the machine.
Lubricate the blade bars with special grease, part no. 531 00
60-74 (UL 21) before long periods of storage
16 – English
Page 17
MAINTENANCE
Maintenance schedule
Below you will find some general maintenance instructions. If
you need further information please contact your service
workshop.
Daily maintenance
• Check throttle trigger and throttle trigger lockout function.
• Check that the stop switch works correctly.
• Check that the blades do not move when the engine is
idling or when the choke is in the start throttle position.
• Clean the outside of the machine.
• Check that the harness is undamaged.
• Check that the blade guard is not damaged or cracked.
Replace the blade guard if it is exposed to impact or is
cracked.
• Check that the blade is properly centered, sharp and
without cracks.
• Check that the hand guard is not damaged. Replace the
guard if damaged.
• Check that the screws that hold the blades together are
correctly tightened.
• Check that the transport guard for the blade is intact and
that it can be secured correctly.
• Check that nuts and screws are tight.
• Check that there are no fuel leaks from the engine, tank or
fuel lines.
• Check the oil level.
Monthly maintenance
• Clean the fuel tank.
• Clean the outside of the carburettor and the space around
it.
• Clean the fan and the area around it.
• Check fuel hose for cracks or other damage. Change if
necessary.
• Change the fuel filter in fuel tank.
• Check the clutch, clutch springs and the clutch drum for
wear. Replace if necessary.
• Check electrical wires and connections.
• Replace the spark plug. Check that the spark plug is fitted
with a suppressor.
• Change the air filter.
• Check and clean the spark arrestor mesh on the muffler.
• Change the engine oil.
Weekly maintenance
• Check the starter and starter cord.
• Check that the vibration damping elements are not
damaged.
• Clean the carburettor area.
• Clean the outside of the spark plug. Remove it and check
the electrode gap. Adjust the gap to 0,6-0,7 mm, or
replace the spark plug. Check that the spark plug is fitted
with a suppressor.
• Clean the cooling fins on the cylinder and check that the
air intake near the starter is not blocked.
• Fill the gear housing with grease. This should be carried
out approximately every 20 working hours.
• Clean the air filter.
English – 17
Page 18
TECHNICAL DATA
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Technical data
Technical data 324HDA55
Engine
Cylinder volume, cu.in/cm
Cylinder bore, inch/mm 1,38/35
Stroke, inch/mm 1,03/26
Idle speed, rpm 3100
Recommended max. speed, rpm 11000
Max. engine output, acc. to ISO 8893, kW/ rpm 0,8 / 7000
Catalytic converter muffler No
Speed-regulated ignition system No
Ignition system
Manufacturer/type of ignition system Ikeda
Spark plug NGK CMR5H
Electrode gap, inch/mm 0,024/0,6
Fuel and lubrication system
Manufacturer/type of carburettor Walbro
Fuel tank capacity, US pint/litre 1,06/0,5
Weight
Weight without fuel, kg 6,0
Sound levels
(see note 1)
Equivalent sound pressure level at the user′s ear, measured
according to ANSI B175.3-1997, dB(A), min/max:
Vibration levels
Vibration levels at handles, measured according to
ANSI B175.3-1997, m/s
Idle speed, rear/front handles: 1,2/1,7
Max. speed, rear/front handles: 5,6/2,6
Blades
Length, mm 550
Blade speed at 9000 rpm, cuts/min 4035
3
2
1,53/25,0
92
Note 1: Equivalent noise pressure level is calculated as the time-weighted energy total for noise pressure levels under various
working conditions with the following time distribution: 1/2 idle and 1/2 max. speed.
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18 – English
Page 19
FEDERAL EMISSION CONTROL WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS
The EPA (The US Environmental Protection Agency),
Environment Canada and Husqvarna Forest & Garden are
pleased to explain the emissions control system warranty on
your 2001 and later small nonroad engine. In U.S. and
Canada, 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
period 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. 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.
MANUFACTURER′′′′S WARRANTY
COVERAGE
The 2001 and later small nonroad engines are warranted for
two years. If any emission related part on you engine (as
listed above) is defective, the part will be repaired or replaced
by Husqvarna Forest & Garden.
OWNER′′′′S WARRANTY
RESPONSIBILITIES
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. 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.
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.
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.
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
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.
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 1-800487-5963.
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.
WARRANTY COMMENCEMENT DATE
The warranty period begins on the date small nonroad engine
is delivered.
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.
WHAT IS COVERED
REPAIR OR REPLACEMENT OF PARTS Repair or
replacement of any warranted part will be performed at no
charge to the owner at an approved Husqvarna Forest &
Garden servicing dealer. If you have any questions regarding
EMISSION CONTROL WARRANTY PARTS LIST
1 Carburetor and internal parts
2 Intake pipe, airfilter holder and carburetor bolts.
3 Airfilter and fuelfilter covered up to maintenance schedule.
4 Ignition System
1 Spark Plug, covered up to maintenance schedule
2 Ignition Module
MAINTENANCE STATEMENT
The owner is responsible for the performance of all required
maintenance, as defined in the operator’s manual.
English – 19
Page 20
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1140260-95
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2004-04-02
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