325HDA55X-SERIES
325HE3X-SERIES
325HE4X-SERIES
Operator's Manual (EPA)
Please read these instructions carefully and make sure
you understand them before using the hedge trimmer.
114 00 06-95
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SYMBOL EXPLANATION
Symbols
• Arrows which show limits for handle
mounting.
WARNING! The hedge trimmer
can be dangerous!
Careless or incorrect use can result in
serious, even fatal injury.
• Always wear approved protective
gloves.
Read through the Operator‘s
Manual carefully and understand the
content before using the hedge
trimmer.
• Use anti-slip and stable boots.
Always use
• Ear protection
• Approved eye protection
Other symbols/decals on the machine refer to
special certification requirements for certain
markets.
• This product is in accordance with
applicable CE directives.
• Cutting tool. Do not touch the
tool without first switching off the
engine.
Checks and/or maintenance should be
carried out with the engine switched off,
with the stop switch in the STOP
position.
• This machine is not electrically
insulated. If the machine touches
or comes close to live electricity
lines, it could cause death or
serious injury. Electricity can
jump from one point to another in
the form of a high-voltage arc.
The higher the voltage, the further
the electricity can jump.
Always use approved protective gloves.
Regular cleaning required.
Electricity can also be conducted
by branches and other objects,
especially if they are wet. Always
keep a distance of at least 10 m
(30 ft) between the machine and
live electricity lines and/or objects
that are touching them. If you
have to work closer than this,
always contact the relevant power
company to make sure the power
is switched off before you start
your work.
Ocular control.
Approved eye protection must always be
used.
This machine has a long reach.
Make sure that no people or
animals come closer than 15 m
(45 ft) when the machine is
running.
2 – English
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CONTENTS
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.
List of contents
SYMBOL EXPLANATION
Symbols ............................................................................... 2
CONTENTS
Maintenance, replacement, or repair of the emission control
devices and systems may be performed by any nonroad
engine repair establishment or individual.
List of contents .................................................................... 3
SAFETY INSTRUCTIONS
Personal protective equipment ............................................. 4
The machine’s protective equipment .................................... 4
Control, maintenance and service of the hedge trimmer’s
protective equipment ..................................................... 6
General safety instructions ................................................... 8
General working instructions for hedge trimmer.................. 9
WARNING!
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.
WHAT IS WHAT?
What is what on the hedge trimmer? ................................. 11
Your warranty does not cover damage or
liability caused by the use of non-
authorized accessories or replacement
parts.
ASSEMBLY
Fitting the hand guard and loop handle (325HDA55,
325HE3)...................................................................... 12
Fitting the angle adjuster(325HE3/325HE4)..................... 12
Fitting the cutting attachment ........................................... 12
Adjusting the harness (325HE4) ........................................ 12
FUEL HANDLING
Fuel mixture ...................................................................... 13
Fuelling.............................................................................. 13
START AND STOP
Control before starting....................................................... 14
Start and stop..................................................................... 14
MAINTENANCE
HUSQVARNA AB HUSKVARNA SWEDEN
Carburetor ......................................................................... 14
Muffler .............................................................................. 17
Cooling system .................................................................. 17
Spark plug.......................................................................... 17
Air filter ............................................................................. 18
Gearbox ............................................................................. 18
Lubrication ........................................................................ 18
Maintenance schedule ........................................................ 19
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 certifies that the product has been approved in
accordance with American exhaust emissions requirements
EPA 1.
TECHNICAL DATA
325HDA55 ....................................................................... 20
325HE3............................................................................. 20
325HE4............................................................................. 20
EMISSION CONTROL WARRANTY STATEMENT
.................................................................................... 21
English – 3
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SAFETY INSTRUCTIONS
Personal protective eqipment
The machine’s protective equipment
This section describes the hedge trimmer’s protective equip-
ment, its function and how checks and maintenance are
carried out to ensure that it operates correctly. (See the chapter
”What is what” to locate where this equipment is positioned on
your machine.)
IMPORTANT INFORMATION
•
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 this
manual.
WARNING!
•
When using a hedge trimmer, protective
Never use a hedge trimmer with defective
equipment approved by the appropriate
authorities must be used. Personal protective
equipment does not eliminate the risk of
protective equipment. Follow the control,
maintenance and service instructions
described in this section.
!
accidents, however, it can reduce the effects of an
injury in the event of an accident. Ask your dealer
for help when choosing protective equipment.
1. Throttle trigger lock
The throttle trigger lock is
designed to prevent the
throttle from accidentally
being engaged. The trigger
(A) can only be pressed in, if
WARNING!
Remove your hearing protection as soon as
you stop the engine, so that you can hear
any noises or warning signals.
!
A
the lock (B) is held in (= the
operator holding the
handle). When the grip on
the handle is released the
throttle and the throttle
trigger lock return to their
original positions. This
takes place via two indepen-
GLOVES
Gloves should be worn when
necessary, e.g., when
inspecting, cleaning or
assembling cutting equip-
ment.
dent return spring systems.
B
This means that the throttle
is automatically locked in
the idling position.
EAR PROTECTION
Ear protection offering
sufficient dampening effect
should be used.
2. Stop switch
EYE PROTECTION
Blows from branches or
objects thrown by the
moving blades can damage
the eyes.
The stop switch should be
used to stop the engine.
BOOTS
Use anti-slip and stable
boots.
3. Hand guard
(325HDA55/HE3)
CLOTHING
Wear clothes made of a
strong fabric and avoid loose
clothing that can catch on
shrubs and branches. Always
wear heavy-duty long pants.
Do not wear jewellery,
shorts, sandals or go bare-
foot. Secure hair so it is
above shoulder level.
The hand guard prevents
the operator’s hands from
coming into contact with
the blades. For example, if
the operator should loose
his grip on the front handle.
FIRST AID KIT
A first aid kit should be close
at hand.
4 – English
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SAFETY INSTRUCTIONS
4. Vibration damping system
5. Muffler
The hedge trimmer is
equipped with a vibration
damping system, which is
designed to give as vibra-
tion-free and comfortable
use as possible.
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 con-
verter is also designed to
reduce harmful exhaust
The hedge trimmer’s
vibration damping system
reduces the transfer of
vibrations between the
engine unit/blades and the
hedge trimmer’s handles.
The engine body including
the blades is suspended on
the handlebar system via a
four springs.
components.
In countries that have a
warm and dry climate the
risk of fire is obvious. We
have therefore fitted certain
mufflers with a spark arrest
screen. Make sure that your
muffler is fitted with this kind of screen. It is extremely
important that the instructions for checking, maintaining and
servicing the muffler are followed. (See the section “Control,
maintenance and service of the machine‘s safety equipment“.)
WARNING!
Over exposure to vibrations can result in
WARNING!
blood-vessel or nerve injury to persons
suffering with blood circulation problems.
Seek medical attention if you experience
physical symptoms that can be related to
over exposure to vibrations. Examples of
such symptoms are ”numbness”, lack of
feeling, ”tickling”, ”pricking”, ”pain”, lack
of or a reduction in normal strength,
changes in the colour of the skin or its
surfaces. These symptoms normally appear
in the fingers, hands or wrists.
!
Mufflers fitted with catalytic converters
become extremely hot during use and
after stopping. This also applies at idling
speeds. Contact can result in burns to
the skin. Be observant to the risk of fire!
!
WARNING!
Bear in mind that exhaust fumes:
• contain carbon monoxide, which can
cause carbon monoxide poisoning.
Therefore never start or run the machine
indoors.
!
• are hot and can contain sparks that can
cause fires. Never start the machine
indoors or close to inflammable material.
6. Blade guard
The blade guard (A) is
intended to protect against
any part of the body coming
into contact with the blades
(B).
English – 5
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SAFETY INSTRUCTIONS
Control, maintenance and service of
WARNING!
the hedge trimmer’s protective
equipment
Never use a machine with defective safety
equipment. The safety equipment should
be maintained as described in this
section. If your machine does not meet
any of these controls you should contact
your service workshop.
!
!
IMPORTANT INFORMATION
•
•
All service and repairs to the machine require
special training.
This applies especially to the machine‘s safety
equipment. If the machine does not meet any of
he controls listed below you should contact
your service workshop.
WARNING!
Always stop the engine before starting
work on any part of the cutting
equipment. This continues to rotate even
after the throttle has been released.
Ensure that the cutting equipment has
stopped completely and remove the cable
from the spark plug before you start to
work on it.
•
The purchase of one of our products
guarantees that professional repair and
servicing will be carried out on it. If the point of
purchase is not one of our servicing dealers,
please ask for details of the closest service
workshop.
2. Stop switch
1. Throttle trigger lock
• Start the engine and
make sure that the engine
stops when the stop
switch is moved to the
stop position.
• Check that the throttle is
locked in the “idling
position“ when the
throttle trigger lock is in
its original position.
• Press in the throttle
trigger lock and make
sure it returns to its
original position when
released.
3. Hand guard
• Ensure that the throttle
and throttle trigger lock
move easily and that their
return spring systems
function.
• Ensure that the blade
guard is fitted correctly.
• Make sure the hand
guard is not damaged in
anyway.
• See the section ”Start”.
Start the hedge trimmer
and apply full throttle.
Release the throttle and
check that the blades
stop and remain at a
standstill. If the blades
rotate with the throttle in
the idling position then
the carburettor’s idling
setting must be checked.
See chapter ”Mainte-
nance”.
4. Vibration
damping system
• Check the vibration
damping element
regularly for material
cracks and distortion.
• Check that the vibration
damping element is
securely attached
between the engine unit
and the handlebar unit.
6 – English
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SAFETY INSTRUCTIONS
5. Muffler
7. Blade guard (325HDA55)
• Never use a machine that
• Check that the blade
guard is not damaged or
distorted.
has a defective muffler.
• Check regularly that the
muffler is secure.
• Replace the blade guard
if it is bent or damaged.
• If your muffler is fitted
with a spark arrest screen
then it should be cleaned
regularly. A blocked
screen leads to the engine
overheating with serious
damage as a result. Never
use a muffler with a
defective spark arrest
screen.
6. Blades
To ensure good cutting
results it is important that
the contact pressure
between the blades is
correct.
The contact pressure
between the blades is
adjusted by tightening the
screws on the underside of
the bar as far as they will
go, then backing them off
1/4 turn. Lock the screws
using the locking nuts on
the top face of the bar.
The washers should still
slide freely under the screw
heads after the screws have
been tightened.
8. Gearbox
• The gearbox gets hot
when the hedge trimmer
is in use. To avoid
burning yourself do not
touch the gearbox.
The edges of the blade are
too hard to be filed. Dull
blades should be sharp-
ened using a grinder.
Replace the blades if they
are bent or damaged.
English – 7
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SAFETY INSTRUCTIONS
Fuel safety
General safety instructions
• Always use a fuel
container with an anti-
spill valve.
IMPORTANT INFORMATION
•
•
The machine is only designed for cutting
branches and twigs.
• Never fill the machine
while the engine is
Never use the machine if you are tired, if you
have consumed alcohol, or if you are taking
medicines that can affect your sight, your
judgement or the control of your body.
running. Always stop the
engine and let it cool for
a few minutes before
refuelling.
•
•
Use personal protective equipment. See the
section ”Personal protective equipment”.
• Provide good ventilation
when filling or mixing
fuel (petrol and 2-stroke
oil).
Never use a machine that has been modified so
that it no longer corresponds with the original
design.
•
•
Never use a machine that is faulty. Follow the
maintenance, control and service instructions in
this Operator’s Manual.
Some maintenance and service actions should
be carried out by trained and qualified
specialists. See the chapter ”Maintenance”.
• Move the machine at
least 3 m from the filling
position before starting.
• Never start the machine:
All covers and guards must be fitted before
starting the machine. Check that the spark plug
cap and HT lead are not damaged, otherwise
you could get an electric shock.
a) If you have spilt fuel on
it. Wipe up all spillage.
b) If you have spilt fuel on
yourself or your clothes.
Change your clothes.
WARNING!
Faulty blades can increase the risk of
accidents.
c) If there is a fuel leak.
Make regular checks for
leakage from the fuel cap
and the fuel supply pipes.
!
Start
• The gearbox and clutch drum must be fitted before the
machine is started, otherwise the clutch can become loose
and cause personal injury.
Transport and storage
• Store and transport the machine and fuel so that any
leakage or fumes do not risk coming into contact with
sparks or naked flames. For example, electric machines,
electric motors, electrical switches/power switches, heaters
or the like.
• Never start the machine indoors. Bear in mind the dangers
of inhaling the engine’s exhaust fumes.
• Observe your surroundings and make sure that there is no
risk of people or animals coming into contact with the
cutting equipment.
• When storing and transporting fuel, approved containers
intended for this purpose must be used.
• Place the machine on the
ground, make sure the
blades are free from
• When storing the machine for long periods the fuel tank
must be emptied. Contact your local petrol station to find
out how to dispose of excess fuel.
branches and stones.
Press the machine body
against the ground using
your left hand (NOTE!
Do not use your foot).
Grip the starter handle
with your right hand and
pull the starter cord.
• The blades transport guard should always be fitted when
transporting or storing the hedge trimmer.
WARNING!
Exercise great care when handling fuel.
Bear in mind the risk of fire, explosions
and inhaling fumes.
!
8 – English
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SAFETY INSTRUCTIONS
Safety instructions when
using the hedge trimmer
Protective instructions while working
• Always ensure you have a
safe and firm working
position.
WARNING!
The hedge trimmer can cause serious
!
personal injury. Read the safety
instructions carefully. Learn how to use
the machine.
• Always use both hands to
hold the machine. Hold
the machine on the side
of the body.
• Use your right hand to
WARNING!
operate the throttle.
Cutting tool. Do not touch the tool
without first switching off the engine.
!
NOTE! Read the Operator’s Manual carefully before using
• Make sure that your
hands and feet cannot
come into contact with
the blades when the
engine is running.
the hedge trimmer.
Personal protection
• Always wear boots, and the
other safety equipment
described in the section
”Personal protective
• When the engine is
switched off, keep your
hands and feet away from
the blades until they have
stopped.
equipment”.
• Always wear working
clothes and thick, long
trousers.
• Watch out for stumps of
branches that can be
thrown out during
cutting.
• Never wear loose fitting
clothes or jewellery
• Secure hair so it is above
shoulder level.
• Always lay the hedge
trimmer on the ground
when you are not using
it.
Protective instructions regarding the
surroundings
• Do not cut too close to the ground. Stones and other
• Never allow children to
use the machine.
objects can be thrown.
• Check the hedge you intend to trim for foreign objects such
as electricity cables, insects and animals, etc, and for other
objects that could damage the cutting attachment, such as
metal items.
• Ensure no one comes
within 15 metres while
working.
• Never allow anyone to use
the machine without first
being absolutely sure that
they understand the
contents of the Operator’s
Manual.
• If any object is hit or if vibrations occur stop the machine
immediately. Remove the spark plug cable 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.
• Never work on a ladder,
stool or any other raised
position that is not fully
secured.
English – 9
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SAFETY INSTRUCTIONS
Protective instructions when
work is completed
Changing the hedge trimmer angle
• The transport guard should always be fitted to the blades
(325HE3, 325HE4)
• Loosen the knob on the
angle adjuster.
• Grasp the handle on the
angle adjuster, adjust to
the desired angle and
tighten the knob.
when the machine is not in use.
• Ensure the blades have stopped and remove the spark plug
cable from the spark plug before carrying out cleaning,
repairs or an inspection.
• Always wear heavy duty
gloves when repairing the
blades. The blades are
extremely sharp and can
easily causes cuts.
(325HDA55)
• Loosen the knob on the
angle adjuster.
• Store the machine out of
reach from children.
• Press the cutting attach-
ment against the ground
or some other solid object
to set the desired angle.
• Tighten the knob.
• Only use original spare
parts when carrying out
repairs.
Basic working techniques
• Work with a swinging
action from the bottom
upwards when trimming
sides.
• Adapt the throttle
according to resistance.
• When trimming a hedge
the engine should always
be turned away from the
hedge.
NOTE! Do not hold the cutting attachment when
you adjust the angle. The blades are sharp and you
could easily cut yourself.
• The hedge trimmer
should be held as close to
the body as possible to
get the best balance.
• Make sure that the tip
does not touch the
ground.
• Do not try to force the
work, but move at a
steady speed so that all
the stems are cut evenly.
10 – English
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WHAT IS WHAT?
7
11
325HE4
325HDA55
23
20
1
21
3
19
6
9
2
10
12
26
22
18
17
5
15
16
13
8
25
28
24
27
14
What is what on the hedge trimmer?
15 Choke
16. Fuel pump
1. Blade
2. Grease nipple (3)
3. Gearbox
17. Air filter cover
18. Clutch cover
4. Blade guard (325HDA55)
5. Shaft
19. Hand guard fastening screw (325HDA55, 325HE3)
20. Handle angle adjuster (325HE3, 325HE4)
21. Angle adjuster knob
6. Front handle(325HDA55,325HE3)
7. Front handle(325HE4)
8. Throttle trigger
9. Stop switch
22. Hand guard (325HDA55, 325HE3)
23. Angle adjuster
24. Spark plug spanner
10. Throttle trigger lock
11. Harness hook (325HE4)
12. Cylinder cover
25. Operator’s manual
26. Transport guard
27. Allen key
13. Starter handle
28. Harness (325HE4)
14. Fuel tank
English – 11
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ASSEMBLY
Fitting the hand guard and loop
Fitting the cutting attachment
handle (325HDA55/325HE3)
Lay the hedge trimmer on a
flat surface before fitting the
cutting attachment. Other-
wise the cutting attachment
may not be fitted straight.
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 the
hand guard onto the shaft.
1. Fit the cutting
attachment to the shaft.
NOTE! Make sure the
drive shaft on the shaft is
aligned with the cut-out
in the cutting
3. Slide the spacer into the slot
in the loop handle.
4. Fit the nut and bolt. Do not
over-tighten.
attachment.
2. Tighten the lower screw,
followed by the upper
screw.
5. Adjust to give a comfortable
working position. Tighten
the nut.
NOTE! The loop handle and
hand guard must not be
fitted behind the arrow
marked on the shaft.
Adjusting the harness (325HE4)
You should always use the
harness with the machine to
give maximum control and
reduce strain on your arms
and back.
Fitting the angle adjuster
(325HE3/325HE4)
1. Fit the angle adjuster
over the two holes in the
cutting attachment.
NOTE! The angle
adjuster must be fitted
on the side nearest the
shaft.
1. Put on the harness.
2. Hook the machine
onto the hook on the
harness.
2. Fit the two washers and
short screws. Tighten the
screws.
3. Adjust the length of the
harness so that the
hook is roughly level
with your right hip.
3. Fit the long screw,
washers and knob.
12 – English
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FUEL HANDLING
Mixture
Fuel
NOTE!
• Always mix petrol and oil in a clean container intended for
petrol.
The machine is fitted with a two-stroke engine and must
always be run on a mixture of petrol and two-stroke oil. It is
important to measure the quantity of oil accurately, to ensure
the correct mixture ratio. Small discrepancies in the amount of
oil have a great bearing on the proportions of the fuel mixture
when mixing small amounts of fuel.
• Always start by filling half the quantity of petrol required.
Then add the entire oil quantity. Mix (shake) the fuel
mixture. Fill the remaining quantity of petrol.
• 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.
WARNING!
Always provide good ventilation when
handling fuel.
!
Petrol
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.
!
NOTE!
Always use an oil-mixed
quality petrol (at least 90
octane). If your machine is
equipped with a catalytic
converter, (see “technical
data”) an unleaded, oil
mixed quality petrol should
always be used. A leaded
petrol will destroy the
catalytic converter.
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.
• The lowest recommended
octane rating is 90. If you
run the engine on a petrol
with a lower octane rating
than 90 so-called
“knocking“ can occur.
This leads to an increased
engine temperature, which
can result in a serious
engine breakdown.
• Clean around the fuel
cap. Contamination in
the tank can disrupt
operations.
• When working at
continuous high revs a
higher octane rating is
recommended.
• Ensure that the fuel is
well mixed by shaking the
container before filling
the tank.
Two-stroke oil
• For the best results use
HUSQVARNA two-
stroke oil, which has been
specially produced for
HUSQVARNA’s small,
two-stroke engines.
Min. 3 m
(10 ft)
Mixing ratio 1:50 (2%).
Gasolin
Benzin
Essence
Gasolina
Lit.
Oil • Öl
Huile • Aceite
Lit.
• If HUSQVARNA two-stroke oil is not available you can
use a high quality two-stroke oil intended for air cooled
engines. Contact your dealer when selecting an oil.
Mixing ratio: 1:33 (3%).
2% (1:50)
3% (1:33)
0,15
0,30
0,45
0,60
0,10
0,20
0,30
0,40
5
10
15
20
US
gallon
US
fl. oz.
• Never use two-stroke oil intended for water cooled out-
2% (1:50)
2 1/2
3% (1:33)
3 3/4
board motors, so-called outboard motor oil.
1
2 1/2
5
6 1/2
9 3/4
• Never use oil intended for four-stroke engines.
12 7/8
19 1/4
English – 13
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START AND STOP
Warm engine
Control before starting
IGNITION:
Set the stop switch to the
start position.
• Inspect the working area. Remove objects that can be
thrown.
• Check the blades. Never
use blades that are dull,
cracked or damaged.
CHOKE:
Set the choke control in the
choke position and then
back again to its original
position (B)
In this way only the start
throttle is applied with no
choke.
• Check that the hedge
trimmer is in full
working order. Check
that all nuts and bolts are
tightened correctly.
• Make sure the gearbox is lubricated correctly. See the
section ”Lubricating the blades”.
AIR PURGE:
• Ensure the blades always stop when the engine is idling.
• Only use the machine for what it is intended for.
Press the air purge dia-
phragm repeatedly until fuel
begins to fill the diaphragm.
The diaphragm need not be
completely filled.
• Ensure that the handle and safety functions are in order.
Never use a machine that lacks a part or has been modified
outside of the specifications.
Start and stop
Start
Press the machine body
against the ground using your
left hand (NOTE! Do not use
your foot). Grip the starter
handle with your right hand
and slowly pull the starter
cord out until you feel some
resistance, (the starter hooks
grip) now quickly and
powerfully pull the cord.
Immediately press the choke
control in when the engine
fires and repeat until the
engine starts. When the
engine starts, quickly apply
full throttle and the start
throttle will automatically
disengage.
WARNING!
The gearbox and clutch drum must be
fitted before the machine is started,
otherwise the clutch can become loose
and cause personal injury.
!
Always move the hedge trimmer about 3
metres from the filling position before
starting. Place the machine on a flat
surface. Bear in mind that the blades start
to move when the engine is started. Make
sure the blades cannot come into contact
with any object. Make sure that no unau-
thorised 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.
NOTE! Do not pull the
starter cord out completely
and do not release the starter
cord from the fully extended
position. This can damage the
hedge trimmer.
CHOKE:
Set the choke control in the
choke position (A).
The choke position is also
the automatic start throttle
position.
Stop
The engine is stopped by
switching the ignition off
using the stop switch.
AIR PURGE:
Press the air purge dia-
phragm repeatedly until fuel
begins to fill the diaphragm.
The diaphragm need not be
completely filled.
14 – English
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MAINTENANCE
Basic setting
Carburettor
• The carburettor is set to its basic setting when test run at
the factory. The basic setting is richer than the optimal
setting and should be kept during the machine’s first
working hours. Thereafter the carburettor should be finely
adjusted. Fine adjustment should be carried out by a skilled
technician.
Your Husqvarna product has been designed and manufac-
tured to specifications that reduce harmful emissions.
After your unit has been run 8-10 tanks of fuel the engine
has broken in. To ensure that your unit is at peak perform-
ance and producing the least amount of harmful emissions
after break in, have your authorized servicing dealer, who has
a revolution counter at his disposal, to adjust your carburet-
tor for optimum operating conditions.
NOTE! If the cutting attachment rotates/moves while the
engine is idling the T-screw should be turned anti-clockwise
until the cutting attachment stops.
WARNING!
The complete clutch cover and gear must
be fitted before the machine is started,
Recommended idling speed is 2 700 rpm.
Recommended max. speed: See “technical data”.
!
otherwise the clutch may come loose and
cause injury.
WARNING!
If the idling speed cannot be adjusted so
!
that the cutting attachment stops,
contact your service workshop. Do not
use the machine until it has been
correctly adjusted or repaired.
Operation
• The carburettor governs
the engine’s speed via the
throttle. Air/fuel is mixed
in the carburettor. The
air/fuel mixture is
Fine adjustment
adjustable. To take
advantage of the engine’s
optimal output the
adjustment must be
correct.
• When the machine has been ”run-in” the carburettor should
be finely adjusted. The fine adjustment should be carried
out by qualified person. First adjust the L-jet, then the
idling screw T and then the H-jet.
Conditions
• The setting of the
carburettor means that
the engine is adapted to
local conditions, for
example, the climate,
altitude, petrol and the
type of 2-stroke oil.
• Before any adjustments are made the airfilter should be clean
and the airfilter cover fitted. Adjusting the carburettor while
a dirty airfilter is in use will result in a leaner mixture when
the filter is finally cleaned. This can give rise to serious
engine damage.
• Carefully turn the L and H needle to the mid point between
fully turned in and fully turned out.
• Do not attempt to adjust the needles beyond the stops as
damage can occur.
• Now start the machine according to the starting instructions
and run it warm for 10 minutes.
NOTE! If the cutting attachment rotates/moves the T screw
should be turned anti-clockwise until the cutting attachment
stops.
• The carburettor is equipped with three adjustment possi-
bilities:
H = High speed needle
L = Low speed needle
T = Idle speed adjuster screw
• The fuel quantity in relation to the air flow permitted by
the throttle opening is adjusted using the L and H-needles.
Turning the needles clockwise gives a leaner fuel mixture
(less fuel) and turning them anti-clockwise gives a richer
fuel mixture (more fuel). A leaner mixture gives high revs
while a richer mixture give less revs.
Low speed needle L
Try to find the highest idling
speed, turning the low speed
needle L clockwise respectively
counter-clockwise.
When the highest speed has
been found, turn the low
speed needle L 1/4 turn
counter-clockwise.
• The T-screw regulates the position of the throttle while the
engine is idling. Turning the screw clockwise gives a higher
idling speed while turning it anti-clockwise gives a lower
idling speed.
NOTE! If the blades move
+ 1/4
when the engine is idling,
turn the idling speed screw
T counter-clockwise until
the blades stop.
L
English – 15
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MAINTENANCE
Correctly adjusted carburettor
Adjusting the idle speed, T
Adjust the idling speed with
the screw T, if it is necessary
to readjust. First turn the
idle speed adjusting screw T
clockwise until the cutting
attachment starts to rotate/
move.
A correctly adjusted carburettor means that the machine
accelerates without hesitation and the machine 4-cycles a little
at max speed. Furthermore, the cutting attachment must not
rotate/move at idling. A too lean adjusted low speed needle L
may cause starting difficulties and bad acceleration.
A too lean adjusted high speed needle H gives lower power =
less capacity, bad acceleration and/or damage to the engine.
A too rich adjustment of the two speed needles L and H gives
acceleration problems or too low working speed.
Then turn, counter-clock-
wise until the cutting
+ 1/4
attachment stops. A correctly
adjusted idle speed setting
occurs when the engine runs
smoothly in every position.
It should also be good
margin to the rpm when the
cutting attachment starts to
move.
L
CAUTION! Contact your servicing dealer, if the idle speed
setting cannot be adjusted so that the cutting attachment
stops. Do not use the machine until it has been properly
adjusted or repaired.
High speed needle H
The high speed needle
affects the machine’s power,
speed, temperature and fuel
consumption. A too lean
adjustment on the high
speed needle H (the high
speed needle H is screwed
in too much) gives a too
high speed resulting in
engine damage. Do not
allow the engine to run at
full speed for more than 10
seconds.
Apply full throttle and turn
the high speed needle H
slowly anticlockwise until
the engine runs unevenly.
The high speed needle H is
then turned slowly clock-
wise a little until the engine
runs smoothly.
Note the engine should be
run unloaded when
adjusting the high speed
needle. Therefore disman-
tle the cutting equipment,
H
nut, support flange and disc
drive before adjusting the
high speed needle. The high
speed needle is adjusted correctly when the machine ‘splatters’
a little . If the machine smokes heavily at the same time as it
‘splatters’ heavily the adjustment is too rich.
NOTE! For optimum setting of the carburettor, contact a
qualified servicing dealer who has a revolution counter at his
disposal.
16 – English
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MAINTENANCE
Cooling system
Muffler
NOTE!
To maintain as low operat-
ing temperature as possible
the engine is equipped with
a cooling system.
Some mufflers are fitted with catalytic converters. See “Techni-
cal data” to find out if your machine is equipped 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
towards a dry and inflam-
mable material. Some
mufflers are equipped with a
special spark arrest screen. If
your machine is fitted with
this type of screen it should
be cleaned regularly. This is
done using a wire brush. On
mufflers without a catalytic
converter the screen should
be cleaned weekly, or
The cooling system consists
of:
1. An air intake on the
starter unit.
2. Cooling fins on the
flywheel.
3. Cooling fins on the
cylinder
4
3
2
1
4. Cylinder cover (leads
cold air onto the
cylinder).
Clean the cooling system
using a brush at least once a
week, in difficult conditions
more often.
A dirty or blocked cooling
system leads to the engine
overheating resulting in
damage to the cylinder and
piston.
replaced if necessary. On
mufflers fitted with a
catalytic converter the
screen should be checked
and cleaned monthly. If the
screen is damaged it should
be replaced. If the screen is
frequently blocked, this can
be a sign that the function
of the catalytic converter is
impaired. Contact your
dealer to inspect the muffler.
A blocked screen will cause
the engine to overheat
Spark plug
The condition of the spark plug is affected by:
• An incorrect carburettor setting.
• An incorrect fuel mixture (too much or faulty oil).
• A dirty air filter.
These factors cause deposits on the spark plug electrode that
may result in malfunction or starting difficulties.
resulting in damage to the
cylinder and piston. Also see
under “Maintenance”.
If the machine is low on
power, difficult to start or
runs poorly while idling
always check the spark plug
first before taking other
action.
NOTE!
Never use a machine with a
defective muffler.
0,5 mm
If the spark plug is dirty,
clean it and at the same time
check that the electrode gap
is 0.5 mm. The spark plug
should be changed after
about one month of
WARNING!
Mufflers fitted with catalytic converters
become extremely hot during use and
after stopping. This also applies at idling
speeds. Contact can result in burns to
the skin. Be observant to the risk of fire!
!
operation or earlier if
necessary.
NOTE! Always use the
recommended type of spark
plug. An incorrect spark
plug can damage the
cylinder/piston.
English – 17
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MAINTENANCE
Gearbox
Air filter
There are three grease
The air filter (A) should be
cleaned regularly removing
dust and dirt to avoid:
nipples (A) on the gearbox.
Use a grease gun to top up
with grease. This should be
carried out after approxi-
mately every 20 working
hours. Use Husqvarna
special grease, No. 503 98
96-01.
• carburettor malfunction
• starting problems
• reduced engine power
• unnecessary wear to
engine parts
• abnormal fuel
Note that the gearbox must
not be filled completely
with grease. The grease
expands as the machine
heats up during operation.
If the gearbox was com-
pletely filled with grease it
could damage the seals and
consumption
Clean the filter after every
25 hours or more regularly if
operating conditions are
exceptionally dusty.
Cleaning the air filter
lead to leakage.
The lubricant in the gearbox does not normally need to be
replaced other than with repair.
Dismantle the air filter cover (B) and remove the air filter.
Wash in clean, warm soapy water. Ensure that the filter is dry
before refitting.
An air filter used for a long period of time can never be cleaned
completely. Therefore it is necessary to replace the filter from
time to time with a new filter. 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 the section on “Oiling the air
filter“.
Lubrication
Always lubricate the blade
runners with special grease
531 00 60-74 (UL 21)
before use.
Oiling the air filter
Always use HUSQVARNA
filter oil, order no. 503 47
73-01. The filter oil con-
tains a solvent to make it
spread evenly through the
filter. You should therefore
avoid skin contact. Put the
filter in a plastic bag and the
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 on the
machine. Never use com-
mon engine oil. This would
drain through the filter
quite quickly and collect in
the bottom.
18 – English
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MAINTENANCE
Maintenance schedule
Below you will find some general maintenance instructions.
Daily maintenance
• Check throttle trigger and throttle trigger lockout function.
• Check stop switch function.
• Check that the blades do not rotate while idling or when the
choke is in the start position.
• Clean the exterior of the machine.
• Check that the harness is undamaged.(325 HE4)
• Check the blade guard for damage or cracks.
• Change the guard in case of impacts or cracks.
• Check that the blade is properly centred, sharp, and without
cracks.
• Check the hand guard for cracks and chips or damage.
Replace if necessary.
• Check that the blade screws are sufficiently tightened.
• Make sure that the blade transport guard is undamaged and
that it can be securely fitted.
• Check that nuts and screws are sufficiently tightened.
• Check for fuel leaks.
Weekly maintenance
• Check the starter, especially cord and return spring.
• Make sure that the vibration damping elements are not
damaged.
• Clean the carburetor area.
• Clean the exterior of the spark plug.
• Remove it and check the electrode gap.
• Adjust it to 0,5 mm (.020"), or change the spark plug.
• Clean the cooling fins on the cylinder and check that the air
intake at the starter is not clogged.
• Fill the gearbox with grease. This should be carried out after
approximately every 20 working hours.
• Clean the air filter.
• Clean or replace the muffler’s spark arrest screen (not on
mufflers with a catalytic converter).
Monthly maintenance
• Clean the fuel tank.
• Clean the exterior of the carburetor and the space around it.
• Clean the fan and the space around it.
• Check fuel hose for cracks or other damage. Change if
necessary.
• Change fuel filter in fuel tank.
• Check clutch, clutch spring and clutch drum for wear.
Change if necessary.
• Check electrical wires and connections.
• Change the spark plug.
• Change the airfilter.
• Check and clean the muffler’s spark arrest screen if necessary
(only mufflers with a catalytic converter).
English – 19
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TECHNICAL DATA
325HE4
Technical data
325HDA55
325HE3
Engine
Cylinder capacity, cu. in/cm3
Cylinder bore, inch/mm
1,50/24,5
1,34/34
1,50/24,5
1,34/34
1,50/24,5
1,34/34
1,06/27
1,06/27
1,06/27
Stroke length, inch/mm
2 700
2 700
2 700
Idling speed, rpm
9 500-10 500
10 800
0,9 kW/ 9 000 r/min
Yes
9 500-10 500
10 800
0,9 kW/ 9 000 r/min
Yes
9500-10 500
10 800
0,9 kW/ 9 000 r/min
Yes
Recommended max. speed, rpm
Max speed, should not be exceeded, rpm
Max. engine output, acc. to ISO 8893
Catalytic converter muffler
Speed-regulated ignition system
Yes
Yes
Yes
Walbro MB
NGK BPMR 7A
0,02/0,5
Walbro MB
NGK BPMR 7A
0,02/0,5
Walbro MB
NGK BPMR 7A
0,02/0,5
Ignition system
Manufacturer/type of ignition system
Spark plug
Electrod gap, inch/mm
Zama C1Q
1,0/0,5
Zama C1Q
1,0/0,5
Zama C1Q
1,0/0,5
Fuel lubrication system
Manufacturer/type of carburettor
Fuel tank capacity,US pint/ litres
12,1/5,5
12,6/5,7
12,8/5,8
Weight
Weight without fuel, Lbs/kg
Noise levels
Equivalent noise pressure levels at
the user’s ear , measured acc. to prEN
11806 and ISO 7917, dB(A):
Equivalent noise power levels measured
acc. to prEN 11806 and ISO 10884,
dB(A):
92
93
91
102
102
102
Vibration levels
3,5/1,8
3,1/5,7
3,8/1,4
4,7/5,5
2,6/2,2
5,9/4,8
Vibration levels on the handles measured
acc. to prEN 11806 and ISO 7916, m/s2
Idling, rear/front handles:
Max. speed , rear/front handles:
550
550
550
4036
4036
4036
Blades
Length, mm
Blade speed at 9 000 rpm, Cut/min
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EMISSION CONTROL WARRANTY STATEMENT
WHAT IS COVERED
YOUR WARRANTY RIGHTS AND
OBLIGATIONS
REPAIR OR REPLACEMENT OF PARTS
Repair or replacement of any warranted part will be perfor-
med 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.
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.
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. 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
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.
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 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.
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
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.
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
1-800-487-5963.
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.
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 COMMENCEMENT DATE
The warranty period begins on the date small nonroad engine
is delivered.
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 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.
English – 21
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2001W10
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