Husqvarna Trimmer 323HE3 User Manual

Operator’s manual (EPA)

325HDA55

323HE3

X-series

325HE3

325HE4

X-series

Please read the operator’s manual carefully and make sure you

understand the instructions before using the machine.

English

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CONTENTS

Contents

Note the following before starting:

KEY TO SYMBOLS

Please read the operator’s manual carefully.

Symbols .......................................................................

CONTENTS

Long-term exposure to noise can result in permanent hearing

impairment. So always use approved hearing protection.

Contents ......................................................................

Note the following before starting: ................................

INTRODUCTION

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.

Dear customer! ............................................................

WHAT IS WHAT?

What is what? ..............................................................

GENERAL SAFETY PRECAUTIONS

Important ......................................................................

Personal protective equipment .....................................

Machine′s safety equipment ........................................

ASSEMBLY

Your warranty may not cover damage or

liability caused by the use of non-authorized

accessories or replacement parts.

Fitting the hand guard and loop handle ....................... 10

Fitting the handle ......................................................... 10

Fitting the cutting head ................................................ 10

Adjusting the harness .................................................. 10

Fitting the impact guard ............................................... 10

FUEL HANDLING

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.

Fuel safety ................................................................... 11

Fuel .............................................................................. 11

Fueling ......................................................................... 12

STARTING AND STOPPING

Check before starting ................................................... 13

Starting and stopping ................................................... 13

WORKING TECHNIQUES

General working instructions ....................................... 15

MAINTENANCE

This label certify that the product has been certiﬁed in

accordance with American exhaust requirements EPA 1.

Carburetor .................................................................... 17

Mufﬂer .......................................................................... 18

Cooling system ............................................................ 19

Spark plug .................................................................... 19

Air ﬁlter ......................................................................... 19

Gear housing ............................................................... 20

Cleaning and lubrication .............................................. 20

Maintenance schedule ................................................. 21

TECHNICAL DATA

TWC

This label certify that the product has been certiﬁed in

accordance with American exhaust requirements EPA 2.

Technical data .............................................................. 22

FEDERAL EMISSION CONTROL WARRANTY

STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 23

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

English – 3

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INTRODUCTION

Dear customer!

Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the

Swedish King Karl XI ordered the construction of a factory on the banks of the Huskvarna River, for production of muskets. The

location was logical, since water power was harnessed from the Huskvarna River to create the water-powered plant. During over

300 years of continuous operation, the Husqvarna factory has produced a lot of different products, from wood stoves to modern

kitchen appliances, sewing machines, bicycles, motorcycles etc. In 1956, the ﬁrst motor driven lawn mowers appeared, followed

by chain saws in 1959, and it is within this area Husqvarna is working today.

Today Husqvarna is one of the leading manufacturers in the world of forest and garden products, with quality as our highest priority.

We develop, manufacture and market high quality motor driven products for forestry and gardening as well as for building and

construction industry.

Your purchase gives you access to professional help with repairs and service whenever this may be necessary. If the retailer who

sells your machine is not one of our authorized dealers, ask for the address of your nearest servicing dealer.

It is our wish that you will be satisﬁed with your product and that it will be your companion for a long time. Think of this operator′s

manual as a valuable document.By following its′ content (using, service, maintenance etc) the life span and the second-hand value

of the machine can be extended. If you ever lend or sell this machine, make sure that the borrower or buyer gets the operator′s

manual, so they will also know how to properly maintain and use it.

Thank you for using a Husqvarna product.

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.

For customer assistance call: 704-921-7000 or contact us at our website: www.husqvarna.com

4 – English

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WHAT IS WHAT?

What is what?

Cutter

16 Air purge

Grease nipples (3)

Bevel gear

17 Air ﬁlter cover.

18 Clutch cover

Blade guard (325HDA55)

Shaft

19 Hand guard mounting screw (325HDA55, 323HE3,

325HE3)

20 Angle adjustment handle (323HE3, 325HE3, 325HE4)

21 Angle adjustment knob

22 Hand guard (325HDA55, 323HE3, 325HE3)

23 Combination spanner

Front handle (325HDA55, 323HE3, 325HE3)

Front handle (325HE4)

Throttle control

Stop switch

24 Operator’s manual

10 Throttle lock

25 Transport guard

11 Harness support hook (325HE4)

12 Cylinder cover

13 Starter handle

26 Allen key

27 Harness (325HE4)

28 Impact guard (325HE4)

29 Spark plug cap and spark plug

14 Fuel tank

15 Choke control

English – 5

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GENERAL SAFETY PRECAUTIONS

HEARING PROTECTION

Important

Wear hearing protection that provides adequate noise

reduction.

IMPORTANT!

The machine is only designed for cutting branches and

twigs.

Never use a machine that has been modiﬁed in any way

from its original speciﬁcation.

EYE PROTECTION

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.

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.

Wear personal protective equipment. See instructions

under the heading Personal protective equipment.

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.

GLOVES

Gloves should be worn when necessary, e.g., when ﬁtting

cutting attachments.

All covers and guards must be ﬁtted before starting. Ensure

that the spark plug cap and ignition lead are undamaged to

avoid the risk of electric shock.

WARNING! Never allow children to use or be

in the vicinity of the machine. As the

machine is equipped with a spring-loaded

BOOTS

Wear sturdy, non-slip boots.

stop switch and can be started by low speed

and force on the starter handle, even small

children under some circumstances can

produce the force necessary to start the

machine.This can mean a risk of serious

personal injury.Therefore remove the spark

plug cap when the machine is not under

close supervision.

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.

WARNING! Faulty blades can increase the

risk of accidents.

FIRST AID KIT

Always have a ﬁrst aid kit nearby.

Personal protective equipment

IMPORTANT!

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.

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.

6 – English

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GENERAL SAFETY PRECAUTIONS

Press the throttle lock and make sure it returns to its original

position when you release it.

′

Machine s safety equipment

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 servicing dealer.

Check that the throttle control and throttle lock move freely

and that the return springs work properly.

IMPORTANT!

All servicing and repair work on the machine requires

special training. This is especially true of the machine′s

safety 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.

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.

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.

Stop switch

Throttle lock

Use the stop switch to switch off the engine.

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.

Start the engine and make sure the engine stops when you

move the stop switch to the stop setting.

Hand guard

(325HDA55,323HE3,325HE3)

The hand guard prevents hands from coming into contact with

the moving blades, for example, if the operator loses grip on

the front handle.

Make sure the throttle control is locked at the idle setting

when the throttle lock is released.

Check that the hand guard is ﬁtted correctly.

Check that the hand guard is undamaged.

English – 7

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GENERAL SAFETY PRECAUTIONS

In countries that have a warm and dry climate there is a

Vibration damping system

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.

Your machine is equipped with a vibration damping system

that is designed to reduce vibration and make operation

easier.

For mufﬂers it is very important that you follow the instructions

on checking, maintaining and servicing your machine.

Never use a machine that has a faulty mufﬂer.

The machine′s vibration damping system reduces the transfer

of vibration between the engine unit/cutting equipment and

the machine′s handle unit.

Regularly check that the mufﬂer is securely attached to the

machine.

Regularly check the vibration damping units for cracks or

deformation. Check that the vibration damping element is

undamaged and securely attached.

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.

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.

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!

The mufﬂer is designed to keep noise levels to a minimum

and to direct exhaust fumes away from the user.

A mufﬂer ﬁtted with a catalytic converter is also designed to

reduce harmful exhaust gases.

WARNING! The inside of the mufﬂer contain

chemicals that may be carcinogenic. Avoid

contact with these elements in the event of a

damaged mufﬂer.

8 – English

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GENERAL SAFETY PRECAUTIONS

Gear housing

WARNING! Bear in mind that:

The gear housing gets hot when the machine has been in

use. To avoid burning yourself do not touch the gear housing.

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!

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.

Blade guard

(325HDA55)

The blade guard (A) is intended to protect against any part of

the body coming into contact with the blades (B).

Check that the blade guard is not damaged or distorted.

Replace the blade guard if it is bent or damaged.

English – 9

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ASSEMBLY

Fit the cutting head to the shaft. CAUTION! Make sure the

drive shaft inside the shaft engages with the recess in the

cutting head.

Fitting the hand guard and loop

handle

(325HDA55,323HE3,325HE3)

Assemble the hand guard and loop handle by screwing

them together. Take care to align the holes in both parts.

Tighten the lower screw ﬁrst, then the upper screw.

Adjusting the harness

(325HE4)

Slide the loop handle and hand guard onto the shaft.

Slide the spacer into the slot in the loop handle.

Fit the nut and screw. Do not overtighten.

You should always use the harness with the machine to give

maximum control over the machine and reduce the risk of

fatigue in your arms and back.

Put on the harness.

Hook the machine onto the harness support hook.

Adjust the length of the harness so that the support hook

is roughly level with your right hip.

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 impact guard

(325HE4)

Fitting the handle

(323HE3, 325HE3,325HE4)

Fit the guard using the three screws and washers. Fit the two

short screws in hole A. Tighten the screws to a torque of 4

Nm. After the machine has been in use for around 20 hours,

re-tighten the screws to 4 Nm.

Fit the handle using two screws.

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.

10 – English

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FUEL HANDLING

Gasoline

Fuel safety

Never start the machine:

If you have spilt fuel on it. Wipe off the spillage and allow

remaining fuel to evaporate.

CAUTION! Always use a quality petrol/oil mixture with an

octane rating of at least 87 octane ((RON+MON)/2). If your

machine is equipped with a catalytic converter (see chapter

on Technical data) always use a good quality unleaded petrol/

oil mixture. Leaded petrol will destroy the catalytic converter.

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.

If the machine is leaking fuel. Check regularly for leaks

from the fuel cap and fuel lines.

Use low-emission gasoline, also known as alkylate gasoline,

if it is available.

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.

This engine is certiﬁed to operate on unleaded gasoline.

•

When storing and transporting fuel always use approved

containers intended for this purpose.

•

The lowest recommended octane grade is 87

((RON+MON)/2). If you run the engine on a lower octane

grade than 87 so-called knocking can occur. This gives

rise to a high engine temperature and increased bearing

load, which can result in serious engine damage.

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.

•

Ensure the machine is cleaned and that a complete

service is carried out before long-term storage.

•

When working at continuous high revs a higher octane

rating is recommended.

The transport guard must always be ﬁtted to the cutting

attachment when the machine is being transported or in

storage.

Two-stroke oil

•

For best results and performance use HUSQVARNA two-

stroke engine oil, which is specially formulated for our air-

cooled two stroke-engines.

•

In order to prevent unintentional starting of the engine, the

spark plug cap must always be removed during long-term

storage, if the machine is not under close supervision and

when performing all service measures.

•

Never use two-stroke oil intended for water-cooled

engines, sometimes referred to as outboard oil (rated

TCW).

WARNING! Take care when handling fuel.

Bear in mind the risk of ﬁre, explosion and

inhaling fumes.

•

Never use oil intended for four-stroke engines.

Mixing ratio

1:50 (2%) with HUSQVARNA two-stroke oil or equivalent.

Fuel

CAUTION!The machine is equipped with a two-stroke engine

and must always been run using a mixture of gasoline and

two-stroke engine oil. It is important to accurately measure

the amount of oil to be mixed to ensure that the correct

mixture is obtained.When mixing small amounts of fuel, even

small inaccuracies can drastically affect the ratio of the

mixture.

Gasoline, litre

Two-stroke oil, litre

2% (1:50)

0,10

0,20

0,30

0,40

US gallon

US ﬂ. oz.

2 1/2

WARNING! Fuel and fuel fumes are highly

inﬂammable and can cause serious injury

when inhaled or allowed to come in contact

with the skin. For this reason observe

caution when handling fuel and make sure

there is adequate ventilation.

2 1/2

6 1/2

12 7/8

English – 11

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FUEL HANDLING

Mixing

Fueling

•

Always mix the gasoline and oil in a clean container

intended for fuel.

•

Always start by ﬁlling half the amount of the gasoline to be

used. Then add the entire amount of oil. Mix (shake) the

fuel mixture. Add the remaining amount of gasoline.

WARNING!Taking the following precautions,

will lessen the risk of ﬁre:

•

Mix (shake) the fuel mixture thoroughly before ﬁlling the

machine’s fuel tank.

Do not smoke or place hot objects near fuel.

Always shut off the engine before refuelling.

Always stop the engine and let it cool for a

few minutes 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.

•

Do not mix more than one month’s supply of fuel at a time.

•

Clean the area around the fuel cap. Contamination in the

tank can cause operating problems.

If the machine is not used for some time the fuel tank

should be emptied and cleaned.

Ensure that the fuel is well mixed by shaking the container

before ﬁlling the tank.

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 working near

ﬂammable substances and/or vapours.

12 – English

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STARTING AND STOPPING

Cold engine

Check before starting

Primer bulb:

Press the primer bulb repeatedly until fuel begins to ﬁll the

bulb. The bulb need not be completely ﬁlled.

•

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.

Choke:

Set the choke control in the choke position.

•

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.

Warm engine

Primer bulb:

•

All covers must be correctly ﬁtted and undamaged before

you start the machine.

Press the primer bulb repeatedly until fuel begins to ﬁll the

bulb. The bulb need not be completely ﬁlled.

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.

Make sure no unauthorised persons are in

the working area, otherwise there is a risk of

serious personal injury.The safety distance

is 15 metres.

English – 13

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STARTING AND STOPPING

Starting

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.

Push the choke control back to its original position as soon as

the engine ﬁres, and continue trying to start until 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 switched off by moving the stop switch to the

stop position.

CAUTION! The stop switch automatically returns to the start

position. In order to prevent unintentional starting, the spark

plug cap must be removed from the spark plug when

assembling, checking and/or performing maintenance.

14 – English

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WORKING TECHNIQUES

•

Never work from a ladder, stool or any other raised

position that is not fully secured.

General working instructions

IMPORTANT!

This section takes up the basic safety precautions for

working with a hedge trimmer.

If you encounter a situation where you are uncertain how to

proceed you should ask an expert. Contact your dealer or

your service workshop.

Avoid all usage which you consider to be beyond your

capability.

Safety instructions while working

WARNING! The machine can cause serious

personal injury. Read the safety instructions

carefully. Learn how to use the machine.

•

Always ensure you have a safe and stable working

position.

WARNING! Cutting tool. Do not touch the

tool without ﬁrst switching off the engine.

Always use both hands to hold the machine. Hold the

machine at the side of your body.

Personal protection

•

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 that your hands and feet do not come near the

cutting attachment when the engine is running.

Make sure your hair does not hang below shoulder level.

When the engine is switched off, keep your hands and feet

away from the cutting attachment until it has stopped

completely.

Safety instructions regarding the

surroundings

•

Never allow children to use the machine.

•

Watch out for stumps of branches that can be thrown out

during cutting.

Ensure that no-one comes closer than 15 m while you are

working.

Always lay the machine on the ground when you are not

using it.

•

Never allow anyone else to use the machine without ﬁrst

ensuring that they have understood the contents of the

operator’s manual.

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.

English – 15

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WORKING TECHNIQUES

•

If anything jams in the blades while you are working,

Changing the hedge trimmer angle

switch off the engine and wait until it has stopped

completely before cleaning the blades. Disconnect the HT

lead from the spark plug.

(323HE3, 325HE3,325HE4)

Safety instructions after completing work

•

Undo the knob.

•

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.

•

Grasp the handle on the angle stop, adjust to the desired

angle and then tighten the knob.

(325HDA55)

•

Undo the knob.

•

Store the machine out of reach of children.

Use only original spare parts for repairs.

Basic working techniques

•

Press the cutting head against the ground or some other

solid object until the desired angle has been obtained.

•

Work with a swinging action from the bottom upwards

when trimming sides.

•

Tighten the knob.

•

Adjust the throttle setting to suit the load.

WARNING! Do not hold the cutting head

when you adjust the angle.The blades are

sharp and you could easily cut yourself.

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.

16 – English

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MAINTENANCE

Basic setting

Carburetor

•

The basic carburetor settings are adjusted during testing

at the factory. The basic setting is richer than the optimal

setting and should be maintained for the ﬁrst few hours the

machine is in use. The carburettor should then be ﬁnely

adjusted. Fine adjustment should be carried out by a

skilled technician.

Your Husqvarna product has been designed and

manufactured to speciﬁcations that reduce harmful

emissions. After the engine has used 8-10 tanks of fuel the

engine will be run-in.To ensure that it continues to run at peak

performance and to minimise harmful exhaust emissions

after the running-in period, ask your dealer/service workshop

(who will have a rev counter at their disposal) to adjust your

carburettor.

CAUTION! If the cutting attachment rotates when the engine

is idling the idle adjustment screw T should be turned anti-

clockwise until the cutting attachment stops.

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.

Rec. idle speed 2700 rpm

Recommended max. speed: See theTechnical data section.

WARNING! If the idle speed cannot be

adjusted so that the cutting attachment

stops, contact your dealer/service

workshop. Do not use the machine until it

has been correctly adjusted or repaired.

Function

•

The carburetor governs the engine’s speed via the throttle

control. Air and fuel are mixed in the carburetor. The air/

fuel mixture is adjustable. Correct adjustment is essential

to get the best performance from the machine.

Fine adjustment

•

When the machine has been ”run-in” the carburetor

should be ﬁnely adjusted. The ﬁne adjustment should

be carried out by a qualiﬁed person. First adjust the L-

jet, then the idling screw T and then the H-jet.

•

The setting of the carburetor means that the engine is

adapted to local conditions, for example, the climate,

altitude, fuel and the type of 2-stroke oil.

Conditions

The carburetor has three adjustment controls:

L = Low speed jet

•

Before any adjustments are made, make sure that the air

ﬁlter is clean and the air ﬁlter cover is ﬁtted. If you adjust

the carburettor when the air ﬁlter is dirty it will result in a

leaner mixture when the ﬁlter is ﬁnally cleaned. This can

lead to serious engine damage.

H = High speed jet

T = Idle adjustment screw

•

Carefully turn both jets, L and H, so that they are midway

between fully screwed in and fully screwed out.

Do not attempt to adjust the L and H jets beyond either

stop as this could cause damage.

Now start the machine according to the starting

instructions and let it warm up for 10 minutes.

CAUTION! If the cutting attachment rotates when the engine

is idling the idle adjustment screw T should be turned anti-

clockwise until the cutting attachment stops.

•

The L and H-jets are used to adjust the supply of fuel to

match the rate that air is admitted, which is controlled with

the throttle. If they are screwed clockwise the air/fuel ratio

becomes leaner (less fuel) and if they are turned anti-

clockwise the ratio becomes richer (more fuel). A lean

mixture gives a higher engine speed and a rich mixture

gives a lower engine speed.

Low speed jet 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 throttle setting at idle speed. If

the T-screw is turned clockwise this gives a higher idle

speed; turning it anti-clockwise gives a lower idle speed.

+ 1/4

CAUTION! If the cutting attachment rotates when the engine

is idling the idle adjustment screw T should be turned anti-

clockwise until the cutting attachment stops.

English – 17

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MAINTENANCE

Note that the engine should not be under load when you

Fine adjustment of the idle speed T

adjust the high speed jet H.You should therefore remove the

cutting attachment, nut, support ﬂange and drive disc before

adjusting the high speed jet H. The high speed jet H is

adjusted correctly when the machine burbles a little. If the

machine races then the setting is too lean. If the engine

produces a lot of smoke and burbles a lot then the setting is

too rich.

Adjust the idle speed with the idle adjustment screw T, if

adjustment is necessary. First turn the idle adjustment screw

T clockwise until the blades start to move. Then turn the idle

adjustment screw T anticlockwise until the blades stop. The

idle speed is correctly adjusted when the engine runs

smoothly in every position. There should also be a clear

margin to the speed at which the blades start to move.

The blades must also remain stationary when the choke

control is in the start throttle position.

CAUTION! For optimum adjustment of the carburettor,

contact a qualiﬁed dealer/service workshop that has a

revolution counter at their disposal.

Correctly adjusted carburetor

IMPORTANT! If the idle speed cannot be adjusted so that the

cutting attachment stops, contact your dealer/service

workshop. Do not use the machine until it has been correctly

adjusted or repaired.

When the carburetor is correctly adjusted the machine

accelerates without hesitation and burbles a little at maximum

speed. It is also important that the blades do not move when

the engine is idling or when the choke control is in the start

position. If the low speed jet L is set too lean it may cause

starting difﬁculties and poor acceleration.

High speed jet H

The high speed jet H affects the engine power, speed,

temperature and fuel consumption. If the high speed jet H is

set too lean (screwed in too far) the engine speed will be too

high and cause engine damage. Do not let the engine run at

full speed for more than 10 seconds.

If the high speed jet H is set too lean it will result in less power,

less performance, poor acceleration and/or damage to the

engine. If both the L and H jets are set too rich it will results in

acceleration problems or too low a working speed.

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.

Apply full throttle and turn the high speed jet H very slowly

clockwise until the engine slows down. Then turn the high

speed jet H very slowly anticlockwise until the engine starts to

run unevenly. Now turn the high speed jet H slowly clockwise

a little way until the engine runs smoothly.

18 – English

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MAINTENANCE

Some mufﬂers are equipped with a special spark arrestor

Spark plug

mesh. If your machine has this type of mufﬂer, you should

clean the mesh at least once a week.This is best done with a

wire brush.

The spark plug condition is inﬂuenced by:

•

Incorrect carburetor adjustment.

An incorrect fuel mixture (too much or incorrect type of

oil).

•

A dirty air ﬁlter.

On mufﬂers without a catalytic converter the mesh should be

cleaned weekly, or replaced if necessary. On mufﬂers ﬁtted

with a catalytic converter the mesh should be checked, and if

necessary cleaned, monthly. If the mesh is damaged it

should be replaced. If the mesh is frequently blocked, this

can be a sign that the performance of the catalytic converter

is impaired. Contact your dealer to inspect the mufﬂer. A

blocked mesh will cause the machine to overheat and result

in damage to the cylinder and piston. See also instructions

under the heading Maintenance.

These factors cause deposits on the spark plug electrodes,

which may result in operating problems and starting

difﬁculties.

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 0.5 mm (0,020"). The spark plug

should be replaced after about a month in operation or earlier

if necessary.

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!

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.

Cooling system

Air ﬁlter

To keep the working temperature as low as possible the

machine is equipped with a cooling system.

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.

The cooling system consists of:

Air intake on the starter.

Fins on the ﬂywheel.

Cooling ﬁns on the cylinder.

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.

English – 19

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MAINTENANCE

Cleaning the air ﬁlter

Cleaning and lubrication

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.

Clean any resin and plant residue from the blades using

cleaning agent 531 00 60-75 (UL22) before and after using

the machine.

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.

Lubricate the blade bars with special grease, part no. 531 00

60-74 (UL 21) before long periods of storage

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.

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.

IMPORTANT! Use only HUSQVARNA replacement parts.

Use of other brands of replacement parts can cause

damage to your unit or injury to the operator or others.Your

warranty does not cover damage or liability caused by the

use of accessories and/or attachments not speciﬁcally

recommended by HUSQVARNA.

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.

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.

20 – English

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MAINTENANCE

Maintenance schedule

The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the

Maintenance section. The user must only carry out the maintenance and service work described in this manual. More extensive

work must be carried out by an authorised service workshop.

Daily

maintenance

Weekly

maintenance

Monthly

maintenance

Maintenance

Clean the outside of the machine.

Make sure the throttle trigger lock and the throttle function correctly from a

safety point of view.

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 air ﬁlter. Replace if necessary.

Check that the hand guard is not damaged. Replace the guard if damaged. X

Check that nuts and screws are tight.

Check that there are no fuel leaks from the engine, tank or fuel lines.

Check the starter and starter cord.

Check that the vibration damping elements are not damaged.

Clean the outside of the spark plug. Remove it and check the electrode

gap. Adjust the gap to 0.5 mm (.20”), or replace the spark plug. Check that

the spark plug is ﬁtted with a suppressor.

Clean the machines cooling system.

Clean or replace the spark arrestor mesh on the mufﬂer (only applies to

mufﬂers without a catalytic converter).

Clean the outside of the carburettor and the space around it.

Fill the gear housing with grease.This should be carried out approximately

every 20 working hours.

Check that the screws that hold the blades together are correctly

tightened.

Clean the fuel tank.

Check the fuel ﬁlter from contamination and the fuel hose from cracks or

other defects. Replace if necessary.

Check all cables and connections.

Check the clutch, clutch springs and the clutch drum for wear. Replace if

necessary by an autorized service workshop.

Replace the spark plug. Check that the spark plug is ﬁtted with a

suppressor.

Check and clean the spark arrestor mesh on the mufﬂer (only applies to

mufﬂers ﬁtted with a catalytic converter).

Clean dirt, leaves and surplus lubricant, etc from the mufﬂer and engine.

English – 21

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TECHNICAL DATA

Technical data

325HDA55

323HE3

325HE3

325HE4

Engine

Cylinder displacement, cu.in/cm

Cylinder bore, inch/mm

Stroke, inch/mm

1,50/24,5

1,34/34,0

1,06/27

2700

1,50/24,5

1,34/34,0

1,06/27

2700

1,50/24,5

1,34/34,0

1,06/27

2700

1,50/24,5

1,34/34,0

1,06/27

2700

Idle speed, rpm

Max. speed, should not be exceeded, rpm

Speed of output shaft, rpm

9500-10500

10800

9500-10500

10800

9500-10500

10800

9500-10500

10800

Max. engine output, acc. to ISO 8893

Catalytic converter mufﬂer

0,9/9000

Yes

0,9/9000

Yes

0,9/9000

Yes

0,9/9000

Yes

Speed-regulated ignition system

Ignition system

Yes

WalbroMB/SEM WalbroMB/SEM WalbroMB/SEM WalbroMB/SEM

AM49 AM49 AM49 AM49

NGK BPMR 7A NGK BPMR 7A NGK BPMR 7A NGK BPMR 7A

Manufacturer/type of ignition system

Spark plug

Electrode gap, inch/mm

Fuel and lubrication system

Manufacturer/type of carburetor

Fuel tank capacity, US pint/litre

Weight

0,02/0,5

Zama C1Q

1,06/0,5

Zama C1Q

1,06/0,5

Zama C1Q

1,06/0,5

Zama C1Q

1,06/0,5

Weight without fuel, cutting attachment and guard, Lbs/kg 12,1/5,5

12,6/5,7

12,8/5,8

Sound levels

(see note 1)

Equivalent sound pressure level at the user′s ear,

measured according to ANSI B175.3-1997, dB(A), min/ 92

max:

Vibration levels

Vibration levels at handles, measured according to ANSI

B175.3-1997, m/s

Idle speed, rear/front handles:

Max. speed, rear/front handles:

Blades

3,5/1,8

3,1/5,7

3,8/1,4

4,7/5,5

3,8/1,4

4,7/5,5

2,2/1,8

7,5/6,6

Length, mm

550

Blade speed, cuts/min

4184

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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FEDERAL EMISSION CONTROL WARRANTY STATEMENT

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

OBLIGATIONS

The EPA (The US Environmental Protection Agency),

Environment Canada and Husqvarna Forest & Garden are

pleased to explain the emissions control system warranty on

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

your 2001 and later small nonroad engine. In U.S. and

“repair or replace as necessary” shall be warranted for 2

Canada, new small nonroad engines must be designed, built

years.Any warranted part which is scheduled for replacement

and equipped to meet the federal stringent anti-smog

as required maintenance shall be warranted for the period of

time up to the ﬁrst scheduled replacement point for that part.

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

is defective, if the diagnostic work is performed at an

ignition system. Where a warrantable condition exists,

approved Husqvarna Forest & Garden servicing dealer.

Husqvarna Forest & Garden will repair your small nonroad

DIAGNOSIS The owner shall not be charged for diagnostic

labor which leads to the determination that a warranted part

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.

engine at no cost to you. Expenses covered under warranty

include diagnosis, parts and labor.

′

MANUFACTURER S WARRANTY

COVERAGE

WHAT IS NOT COVERED

All failures caused by abuse, neglect or improper

maintenance are not covered.

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.

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.

′

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

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.

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.

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.

EMISSION CONTROL WARRANTY PARTS

LIST

WARRANTY COMMENCEMENT DATE

Carburetor and internal parts

The warranty period begins on the date small nonroad engine

is delivered.

Intake pipe, airﬁlter holder and carburetor bolts.

Airﬁlter and fuelﬁlter covered up to maintenance schedule.

Ignition System

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.

Spark Plug, covered up to maintenance schedule

Ignition Module

Mufﬂer with catalytic converter

WHAT IS COVERED

MAINTENANCE STATEMENT

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

The owner is responsible for the performance of all required

maintenance, as deﬁned in the operator’s manual.

English – 23

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1140333-95

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2005-01-03

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