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Operator’s manual

Manuel d’utilisation

Manual de instrucciones

Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.

Lire attentivement et bien assimiler le manuel d’utilisation avant d’utiliser la machine.

Lea detenidamente el manual de instrucciones y asegúrese de entender su contenido antes de utilizar la máquina.

KEY TO SYMBOLS

2 – English

1158419-49 Rev. 5 2019-02-07

Symbols

WARNING! Clearing saws, brushcutters

and trimmers can be dangerous! Careless

or incorrect use can result in serious or

fatal injury to the operator or others. It is

extremely important that you read and

understand the contents of the operator’s manual.

Please read the operator’s manual

carefully and make sure you

understand the instructions before

using the machine.

Always wear:

• Wear a protective helmet where

there is a risk of falling objects

• Approved hearing protection

• Approved eye protection

Max. speed of output shaft, rpm

Watch out for thrown objects and

ricochets.

The operator of the machine must

ensure, while working, that no

persons or animals come closer than

15 meters (50 ft.).

Machines ﬁtted with saw blades or

grass blades can be thrown violently

to the side when the blade comes

into contact with a ﬁxed object. This is

called blade thrust. The blade is

capable of amputating an arm or leg.

Always keep people and animals at least 15 meters (50

ft.) from the machine.

Arrows which show limits for handle

positioning.

Always wear approved protective

gloves.

Wear sturdy, non-slip boots.

Primer bulb

Choke control

Only use non-metallic, ﬂexible cutting

attachments, i.e. trimmer heads with

trimmer cord.

Other symbols/decals on the machine refer to special

certiﬁcation requirements for certain markets.

Switch off the engine by moving the

stop switch to the STOP position

before carrying out any checks or

maintenance.

Always wear approved protective

gloves.

Regular cleaning is required.

Visual check.

Approved eye protection must always

be used.

10000

5

0

FT

15

m

50FT

15 m

The engine exhaust from this product

contains chemicals known to the State

of California to cause cancer, birth

defects or other reproductive harm.

CONTENTS

English

–

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1158419-49 Rev. 5 2019-02-07

:gnitrats erofeb gniwollof eht etoNstnetnoC

Please read the operator’s manual carefully.

Maintenance, replacement, or repair of the emission

control devices and system may be performed by any

nonroad engine repair establishment or individual.

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 and California emissions requirements.

KEY TO SYMBOLS

Symbols ................................................................ 2

CONTENTS

Contents ............................................................... 3

Note the following before starting: ........................ 3

INTRODUCTION

Dear customer! ..................................................... 4

WHAT IS WHAT?

What is what? ....................................................... 5

GENERAL SAFETY PRECAUTIONS

Important .............................................................. 6

Personal protective equipment ............................. 6

Machine

ʹ

s safety equipment ................................. 7

Cutting equipment ................................................ 10

ASSEMBLY

Fitting the loop handle .......................................... 11

Assembling the cutting equipment ....................... 11

FUEL HANDLING

Fuel handling ........................................................ 12

Fuel ...................................................................... 12

STARTING AND STOPPING

Check before starting ........................................... 14

Starting and stopping ........................................... 14

WORKING TECHNIQUES

General working instructions ................................ 16

MAINTENANCE

Carburetor ............................................................ 18

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

Cooling system ..................................................... 18

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

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

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

TECHNICAL DATA

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

U.S FEDERAL, CALIFORNIA AND CANADA

EXHAUST AND EVAPORATIVE EMISSIONS

CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS.. 23

!

WARNING! Long-term exposure to noise

can result in permanent hearing

impairment. So always use approved

hearing protection.

!

WARNING! Under no circumstances may

the design of the machine be modiﬁed

without the permission of the

manufacturer. Always use genuine

accessories. Non-authorized

modiﬁcations and/or accessories can

result in serious personal injury or the

death of the operator or others.

Your warranty may not cover damage or

liability caused by the use of non-

authorized accessories or replacement

parts.

!

WARNING! A clearing saw, brushcutter

or trimmer can be dangerous if used

incorrectly or carelessly, and can cause

serious or fatal injury to the operator or

others. It is extremely important that you

read and understand the contents of this

operator’s manual.

4 – English

INTRODUCTION

1158419-49 Rev. 5 2019-02-07

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.

English – 5

WHAT IS WHAT?

1158419-49 Rev. 5 2019-02-07

What is what?

23

22

21

1 Trimmer head

2 Bevel gear

3 Grease ﬁller cap, bevel gear

4 Cutting attachment guard

5 Shaft

6 Loop handle

7 Stop switch

8 Throttle trigger

9 Throttle trigger lockout

10 Cylinder cover

11 Starter handle

12 Air purge

13 Fuel tank

14 Choke control

15 Air ﬁlter cover

16 Handle adjustment

17 Drive disc

18 Allen key

19 Locking pin

20 Operator’s manual

21 Oil

22 Combination wrench

23 Wrench

GENERAL SAFETY PRECAUTIONS

6 – English

1158419-49 Rev. 5 2019-02-07

Important Personal protective equipment

HEARING PROTECTION

Wear hearing protection that provides adequate noise

reduction.

EYE PROTECTION

Always wear approved eye protection. If you use a visor

then you must also wear approved protective goggles.

Approved protective goggles must comply with standard

ANSI Z87.1 in the USA or EN 166 in EU countries.

GLOVES

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

cutting attachments.

BOOTS

Wear sturdy, non-slip boots.

IMPORTANT!

The machine is only designed for trimming grass.

The only accessories you can operate with this engine

unit are the cutting attachments we recommend in the

chapter on Technical data.

National or local regulations may regulate the use.

Comply to given regulations.

Never use the machine if you are tired, if you are ill, if

you have consumed alcohol, or if you are taking other

drugs or medication that can affect your vision,

judgement or co-ordination.

Wear personal protective equipment. See instructions

under the heading ”Personal protective equipment”.

Never use a machine that has been modiﬁed in any way

from its original speciﬁcation.

Never use a machine that is faulty. Carry out the safety

checks, maintenance and service instructions

described in this manual. Some maintenance and

service measures must be carried out by trained and

qualiﬁed specialists. See instructions under the heading

Maintenance.

All covers, guards and handles must be ﬁtted before

starting. Ensure that the spark plug cap and ignition

lead are undamaged to avoid the risk of electric shock.

The machine operator must ensure that no people or

animals come closer than 15 meters while working.

When several operators are working in the same area

the safety distance should be at least twice the tree

height and no less than 15 meters.

Do an overall inspection of the machine before use, see

maintenance schedule.

!

WARNING! This machine produces an

electromagnetic ﬁeld during operation.

This ﬁeld may under some

circumstances interfere with active or

passive medical implants. To reduce the

risk of serious or fatal injury, we

recommend persons with medical

implants consult their physician and the

medical implant manufacturer before

operating this machine.

!

WARNING! Running an engine in a

conﬁned or badly ventilated area can

result in death due to asphyxiation or

carbon monoxide poisoning.

IMPORTANT!

A clearing saw, brushcutter or trimmer can be

dangerous if used incorrectly or carelessly, and can

cause serious or fatal injury to the operator or others. 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.

GENERAL SAFETY PRECAUTIONS

English

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7

1158419-49 Rev. 5 2019-02-07

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.

FIRST AID KIT

Always have a ﬁrst aid kit nearby.

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.

Throttle trigger lockout

The throttle lockout 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 lockout 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.

Make sure the throttle control is locked at the idle setting

when the throttle lockout is released.

Press the throttle lockout and make sure it returns to its

original position when you release it.

Check that the throttle trigger and throttle lockout move

freely and that the return springs work properly.

See instructions under the heading Start. Start the

machine and apply full throttle. Release the throttle and

check that the cutting attachment stops and remains at a

standstill. If the cutting attachment rotates with the throttle

in the idle position then the carburettor idle setting must

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.

!

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.

GENERAL SAFETY PRECAUTIONS

8 – English

1158419-49 Rev. 5 2019-02-07

be checked. See instructions under the heading

Maintenance.

Stop switch

Use the stop switch to switch off the engine.

Start the engine and make sure the engine stops when

you move the stop switch to the stop setting.

Cutting attachment guard

This guard is intended to prevent loose objects from being

thrown towards the operator. The guard also protects the

operator from accidental contact with the cutting

attachment.

Check that the guard is undamaged and not cracked.

Replace the guard if it has been exposed to impact or is

cracked.

Always use the recommended guard for the cutting

attachment you are using. See chapter on Technical data.

Vibration damping system

Your machine is equipped with a vibration damping

system that is designed to reduce vibration and make

operation easier.

Use of incorrectly wound cord or an incorrect cutting

attachment increases the level of vibration. See

instructions under the heading Cutting equipment.

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 the vibration damping units for cracks or

deformation. Check that the vibration damping element is

undamaged and securely attached.

!

WARNING! Never use a cutting

attachment without an approved guard.

See the chapter on Technical data. If an

incorrect or faulty guard is ﬁtted this can

cause serious personal injury.

!

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.

GENERAL SAFETY PRECAUTIONS

English

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1158419-49 Rev. 5 2019-02-07

Mufﬂer

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.

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

signiﬁcant risk of ﬁre. We therefore ﬁt certain mufﬂers with

a spark arrestor screen. Check whether the mufﬂer on

your machine is ﬁtted with this kind of screen.

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.

Regularly check that the mufﬂer is securely attached to

the machine.

If the mufﬂer on your machine is ﬁtted with a spark

arrestor screen this must be cleaned regularly. A blocked

screen will cause the engine to overheat and may lead to

serious damage.

Locking nut

A locking nut is used to secure some types of cutting

attachment.

When ﬁtting, tighten the nut in the opposite direction to the

direction of rotation of the cutting attachment. To remove

it, undo the nut in the same direction as the cutting

attachment rotates. (CAUTION! The nut has a left-hand

thread.)

When loosening and tightening the saw blade nut, there

is a risk of injury from the teeth of the saw blade. You

should therefore always ensure that your hand is shielded

by the blade guard when doing this. Always use a socket

spanner with a shaft that is long enough to allow this. The

arrow in the diagram shows the area where you should

!

WARNING! Never use the machine

indoors or in spaces lacking proper

ventilation. Exhaust fumes contain

carbon monoxide, an odorless,

poisonous and highly dangerous gas.

!

WARNING! Mufﬂers ﬁtted with catalytic

converters get very hot during use and

remain so for some time after stopping.

This also applies at idle speed. Contact

can result in burns to the skin.

Remember the risk of ﬁre!

!

WARNING! The inside of the mufﬂer

contain chemicals that may be

carcinogenic. Avoid contact with these

elements in the event of a damaged

mufﬂer.

!

WARNING! Bear in mind that:

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!

GENERAL SAFETY PRECAUTIONS

10 – English

1158419-49 Rev. 5 2019-02-07

operate the socket spanner when loosening or tightening

the nut.

The nylon lining inside the locking nut must not be so worn

that you can turn it by hand. The lining should offer a

resistance of at least 1.5 Nm. The nut should be replaced

after it has been put on approx. 10 times.

Cutting equipment

This section describes how to choose and maintain your

cutting equipment in order to:

• Obtain maximum cutting performance.

• Extend the life of cutting equipment.

Trimmer head

• Only use the recommended trimmer heads and

trimmer cords. These have been tested by the

manufacturer to suit a particular engine size. This is

especially important when a fully automatic trimmer

head is used. Only use the recommended cutting

attachment. See the chapter on Technical data.

• Smaller machines generally require small trimmer

heads and vice versa. This is because when clearing

using a cord the engine must throw out the cord

radially from the trimmer head and overcome the

resistance of the grass being cleared.

• The length of the cord is also important. A longer cord

requires greater engine power than a shorter cord of

the same diameter.

• Make sure that the cutter on the trimmer guard is

intact. This is used to cut the cord to the correct length.

• To increase the life of the cord it can be soaked in

water for a couple of days before use. This will make

the cord tougher so that it lasts longer.

IMPORTANT!

Only use cutting attachments with the guards we

recommend! See the chapter on Technical data.

Refer to the instructions for the cutting attachment to

check the correct way to load the cord and the correct

cord diameter.

!

WARNING! Always stop the engine

before doing any work on the cutting

attachment. This continues to rotate even

after the throttle has been released.

Ensure that the cutting attachment has

stopped completely and disconnect the

spark plug cap before you start to work

on it.

!

WARNING! A faulty cutting attachment

may increase the risk of accidents.

IMPORTANT!

Always ensure the trimmer cord is wound tightly and

evenly around the drum, otherwise the machine will

generate harmful vibration.

ASSEMBLY

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11

1158419-49 Rev. 5 2019-02-07

Fitting the loop handle

• Clip the loop handle onto the shaft. Note that the loop

handle must be ﬁtted between the arrows on the shaft.

• Slide the spacer into the slot in the loop handle.

• Fit the nut, washer and screw. Do not overtighten.

• Now adjust the trimmer to give a comfortable working

position. Tighten the bolt/knob.

Assembling the cutting

equipment

Fitting other guards and cutting

attachments

• Fit the correct trimmer guard (A) for use with the

trimmer head. Hook the trimmer guard/combination

guard onto the ﬁtting on the shaft and secure with the

bolt (L).

• Fit the drive disc (B) on the output shaft.

• Turn the output shaft until one of the holes in the drive

disc aligns with the corresponding hole in the gear

housing.

• Insert the locking pin (C) in the hole to lock the shaft.

• Screw on the trimmer head/plastic blades (H) counter

clockwise.

• To dismantle, follow the instructions in the reverse

order.

!

WARNING!

When ﬁtting the cutting attachment it is

extremely important that the raised

section on the drive disc/support ﬂange

engages correctly in the centre hole of

the cutting attachment. If the cutting

attachment is ﬁtted incorrectly it can

result in serious and/or fatal personal

injury.

!

WARNING! Never use a cutting

attachment without an approved guard.

See the chapter on Technical data. If an

incorrect or faulty guard is ﬁtted this can

cause serious personal injury.

A

B

C

H

FUEL HANDLING

12 – English

1158419-49 Rev. 5 2019-02-07

Fuel handling

Never start the machine:

1 If you have spilled fuel on it. Wipe off the spillage and

allow remaining fuel to evaporate.

2 If you have spilled fuel on yourself or your clothes,

change your clothes. Wash any part of your body that

has come in contact with fuel. Use soap and water.

3 If the machine is leaking fuel. Check regularly for

leaks from the fuel cap and fuel lines.

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 open ﬂames, for example, from

electrical machinery, electric motors, electrical relays/

switches or boilers.

• When storing and transporting fuel always use

approved containers intended for this purpose.

• When storing the machine for long periods the fuel

tank must be emptied. Contact your local gas station

to ﬁnd out where to dispose of excess fuel. Drain the

tank into the appropriate containers and in a well

ventilated area.

• The transport guard must always be ﬁtted to the

cutting attachment when the machine is being

transported or in storage.

• Secure the machine during transport.

• Allow the machine to cool before putting it in storage

and/or before transport.

• Ensure the machine is cleaned and that a complete

service is carried out before long-term storage.

Fuel

CAUTION!

The machine is equipped with a four-stroke

engine. Make sure that there is always sufﬁcient oil in the

oil tank.

Gasoline

Always use an unleaded quality petrol of at least 90

octane (RON).

Use low-emission gasoline, also known as alkylate

gasoline, if it is available.

• 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 working at continuous high revs a higher octane

rating is recommended.

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

should be emptied and cleaned. Drain the tank into

the appropriate containers and in a well ventilated

area.

Engine oil

Check the oil level before starting the machine. A too low

oil level can cause serious damage to the engine.

When the machine is new the engine oil should be

changed after the ﬁrst month or after 10 hours of

operation.

• For the best result and function use HUSQVARNA

engin oil.

• When HUSQVARNA engine oil is not available

another high grade engine oil can be used. Contact

your dealer when selecting oil. Engine oil for four-

stroke petrol engines must be used. Quality class at

least API SG. In general viscosity class SAE 10W-40

is recommended.

• Never use oil intended for two-stroke engines.

Oil level

The machine must be switched off and placed on a ﬂat

surface when you check the oil level.

!

WARNING! Take care when handling fuel.

Bear in mind the risk of ﬁre, explosion

and inhaling fumes.

!

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.

!

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 vapors.

FUEL HANDLING

English – 13

1158419-49 Rev. 5 2019-02-07

Unscrew the oil cap, clean the dipstick located on the cap

and insert the cap again without screwing it down. Check

the oil level on the dipstick.

When the oil level is low, top up using engine oil to the

edge of the oil reﬁll hole.

Only use recommended engine oil.

Fueling

Always use a fuel container with an anti-spill valve.

Clean around the fuel cap. Clean the fuel and oil tank

regularly. The fuel ﬁlter should be changed at least once

a year. Contamination in the tanks causes malfunction.

Always move the machine about 3 metres from the

refuelling position before starting.

!

WARNING! Taking the following

precautions, will lessen the risk of ﬁre:

Do not smoke or place hot objects near

fuel.

Always shut off the engine before

refueling.

Always stop the engine and let it cool for

a few minutes before refueling.

Always mix the gasoline and oil in a

clean container intended for fuel. Mix and

pour fuel outdoors, where there are no

sparks or ﬂames.

When refuelling, open the fuel cap slowly

so that any excess pressure is released

gently.

Tighten the fuel cap carefully after

refueling.

Always move the machine away from the

refueling area and source before

starting.

STARTING AND STOPPING

14 – English

1158419-49 Rev. 5 2019-02-07

Check before starting

• Check that the support ﬂange is not cracked due to

fatigue or due to being tightened too much. Discard

the support ﬂange if it is cracked.

• Ensure the locking nut has not lost its captive force.

The nut lock should have a locking force of at least 1.5

Nm. The tightening torque of the locking nut should be

35-50 Nm.

• Check that the trimmer head and trimmer guard are

not damaged or cracked. Replace the trimmer head or

trimmer guard if they have been exposed to impact or

are cracked.

• Never use the machine without a guard nor with a

defective guard.

• All covers must be correctly ﬁtted and undamaged

before you start the machine.

Starting and stopping

Cold engine

Ignition: Set the stop switch to the start position.

Choke: Set the choke control in the choke position.

Primer bulb: Press the air purge repeatedly until fuel

begins to ﬁll the bulb. The bulb need not be completely

ﬁlled.

!

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.

Always move the machine away from the

refueling area and source before

starting. Place the machine on a ﬂat

surface. Ensure the cutting attachment

cannot come into contact with any

object.

Make sure no unauthorised persons are

in the working area, otherwise there is a

risk of serious personal injury. The safety

distance is 15 meters (50 ft.).

OIL

STARTING AND STOPPING

English – 15

1158419-49 Rev. 5 2019-02-07

Warm engine

Ignition: Set the stop switch to the start position.

Choke: Put the choke in working position.

Primer bulb: Press the air purge repeatedly until fuel

begins to ﬁll the bulb. The bulb need not be completely

ﬁlled.

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. Never wrap the

starter cord around your hand

Reset the choke when the engine ﬁres, repeat pulling the

cord 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

Stop the engine by switching off the ignition with the stop

button.

!

WARNING! When the engine is started

with the choke in either the choke or

start throttle positions the cutting

attachment will start to rotate

immediately.

OIL

WORKING TECHNIQUES

16 – English

1158419-49 Rev. 5 2019-02-07

General working instructions

Basic safety rules

1 Look around you:

• To ensure that people, animals or other things cannot

affect your control of the machine.

• To ensure that people, animals, etc., do not come into

contact with the cutting attachment or loose objects

that are thrown out by the cutting attachment.

• CAUTION! Do not use the machine unless you are

able to call for help in the event of an accident.

2 Inspect the working area. Remove all loose objects,

such as stones, broken glass, nails, steel wire, string,

etc. that could be thrown out or become wrapped

around the cutting attachment.

3 Do not use the machine in bad weather, such as

dense fog, heavy rain, strong wind, intense cold, etc.

Working in bad weather is tiring and often brings

added risks, such as icy ground.

4 Make sure you can move and stand safely. Check the

area around you for possible obstacles (roots, rocks,

branches, ditches, etc.) in case you have to move

suddenly. Take great care when working on sloping

ground.

5 Do not overreach. Keep proper footing and balance at

all times.

6 Keep a good balance and a ﬁrm foothold. Do not

overreach. Keep proper footing and balance at all

times.

7 Always hold the machine with both hands. Hold the

machine on the right side of your body.

8 Keep the cutting attachment below waist level.

9 Keep all parts of your body away from the rotating

cutting attachment. Keep all parts of your body away

from hot surfaces.

10 The engine must be switched off before moving.

11 Never put the machine down with the engine running

unless you have it in clear sight.

IMPORTANT!

This section takes up the basic safety precautions for

working with a 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.

You must understand the difference between forestry

clearing, grass clearing and grass trimming before use.

!

WARNING! Neither the operator of the

machine nor anyone else may attempt to

remove the cut material while the engine

is running or the cutting equipment is

rotating, as this can result in serious

injury.

Stop the engine and cutting equipment

before you remove material that has

wound around the blade shaft as

otherwise there is a risk of injury. The

bevel gear can get hot during use and

may remain so for a while afterwards. You

could get burnt if you touch it.

!

WARNING! Watch out for thrown objects.

Always wear approved eye protection.

Never lean over the cutting attachment

guard. Stones, rubbish, etc. can be

thrown up into the eyes causing

blindness or serious injury.

Keep unauthorised persons at a

distance. Children, animals, onlookers

and helpers should be kept outside the

safety zone of 15 m. (50 ft.) Stop the

machine immediately if anyone

approaches. Never swing the machine

around without ﬁrst checking behind you

to make sure no-one is within the safety

zone.

WORKING TECHNIQUES

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Basic working techniques

Always slow the engine to idle speed after each working

operation. Long periods at full throttle without any load on

the engine can lead to serious engine damage.

Grass trimming with a trimmer head

Trimming

• Hold the trimmer head just above the ground at an

angle. It is the end of the cord that does the work. Let

the cord work at its own pace. Never press the cord

into the area to be cut.

• The cord can easily remove grass and weeds up

against walls, fences, trees and borders, however it

can also damage sensitive bark on trees and bushes,

and damage fence posts.

• Reduce the risk of damaging plants by shortening the

cord to 10-12 cm and reducing the engine speed.

Clearing

• The clearing technique removes all unwanted

vegetation. Keep the trimmer head just above the

ground and tilt it. Let the end of the cord strike the

ground around trees, posts, statues and the like.

CAUTION! This technique increases the wear on the

cord.

• The cord wears quicker and must be fed forward more

often when working against stones, brick, concrete,

metal fences, etc., than when coming into contact with

trees and wooden fences.

• When trimming and clearing you should use less than

full throttle (80%) so that the cord lasts longer and to

reduce the wear on the trimmer head.

Cutting

• The trimmer is ideal for cutting grass that is difﬁcult to

reach using a normal lawn mower. Keep the cord

parallel to the ground when cutting. Avoid pressing the

trimmer head against the ground as this can ruin the

lawn and damage the tool.

• Do not allow the trimmer head to constantly come into

contact with the ground during normal cutting.

Constant contact of this type can cause damage and

wear to the trimmer head.

Sweeping

• The fan effect of the rotating cord can be used for

quick and easy clearing up. Hold the cord parallel to

and above the area to be swept and move the tool side

to side.

• When cutting and sweeping you should use full

throttle to obtain the best results.

!

WARNING! Sometimes branches or

grass get caught between the guard and

cutting attachment. Always stop the

engine before cleaning.

IMPORTANT! To avoid unbalance and vibrations in

handles trimmer head cover need to be cleaned every

time cord is reﬁlled. In addition, check other part of the

head if needed to be cleaned.

MAINTENANCE

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Carburetor

Function

• The carburetor governs the engine’s speed via the

throttle control. Air and fuel are mixed in the

carburetor.

• Setting the carburettor involves adapting the engine to

suit local conditions, e.g. climate, altitude and the

petrol.

Basic setting

The basic carburetor settings are adjusted during testing

at the factory.

CAUTION! For optimum adjustment of the carburettor,

contact a qualiﬁed dealer/service workshop that has a

revolution counter at their disposal.

Adjusting the idle speed (T)

Check that the air ﬁlter is clean. When the idle speed is

correct, the cutting attachment should not rotate. If

adjustment is required, close (turn clockwise) the idle

adjustment screw T, with the engine running, until the

cutting attachment starts to rotate. Open (turn

anticlockwise) the screw until the cutting attachment

stops. The idle speed is correctly set when the engine

runs smoothly in all positions, and there is a clear margin

to the speed at which the cutting attachment starts to

rotate.

Mufﬂer

CAUTION! Some mufﬂers are ﬁtted with a catalytic

converter. See chapter on Technical data to see whether

your machine is ﬁtted with a catalytic converter.

The mufﬂer is designed to reduce the noise level and to

direct the exhaust gases away from the operator. The

exhaust gases are hot and can contain sparks, which may

cause ﬁre if directed against dry and combustible

material.

The mufﬂer on your machine is equipped with a spark

arrestor screen, this should be cleaned regularly. A

blocked screen will cause the engine to overheat and may

lead to serious damage.

CAUTION! Never use a machine with a defective mufﬂer.

Cooling system

To keep the working temperature as low as possible the

machine is equipped with a cooling system.

!

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.

!

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!

MAINTENANCE

English – 19

1158419-49 Rev. 5 2019-02-07

The cooling system consists of:

1 Air intake on the starter.

2 Fins on the ﬂywheel.

3 Cooling ﬁns on the cylinder.

4 Cylinder cover (directs cold air over the cylinder).

Clean the cooling system with a brush once a week, more

often in demanding conditions. A dirty or blocked cooling

system results in the machine overheating which causes

damage to the piston and cylinder.

Spark plug

The spark plug condition is inﬂuenced by:

• Incorrect carburetor adjustment.

• A dirty air ﬁlter.

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 0,6-0,7 mm.

The spark plug should be replaced after about a month in

operation or earlier if necessary.

CAUTION! Always use the recommended spark plug

type! Use of the wrong spark plug can damage the piston/

cylinder. Check that the spark plug is ﬁtted with a

suppressor.

Air ﬁlter

The air ﬁlter must be regularly cleaned to remove dust

and dirt in order to avoid:

• Carburettor malfunctions.

• Starting problems.

• Loss of engine power.

• Unnecessary wear to engine parts

• Excessive fuel consumption.

Clean the ﬁlter every 25 hours, or more regularly if

conditions are exceptionally dusty.

Cleaning the air ﬁlter

Remove the air ﬁlter cover and take out the ﬁlter. Wash it

clean in warm, soapy water. Ensure that the ﬁlter is dry

before reﬁtting it.

An air ﬁlter that has been in use for a long time cannot be

cleaned completely. The ﬁlter must therefore be replaced

with a new one at regular intervals. A damaged air ﬁlter

must always be replaced.

If the machine is used in dusty conditions the air ﬁlter

should be soaked in oil. See instructions under the

heading Oiling the air ﬁlter.

Oiling the air ﬁlter

Always use HUSQVARNA ﬁlter oil, art. no. 531 00 92-48.

The ﬁlter oil contains a solvent to make it spread evenly

through the ﬁlter. You should therefore avoid skin contact.

Put the ﬁlter in a plastic bag and pour the ﬁlter oil over it.

Knead the plastic bag to distribute the oil. Squeeze the

excess oil out of the ﬁlter inside the plastic bag and pour

off the excess before ﬁtting the ﬁlter to the machine. Never

use common engine oil. This would drain through the ﬁlter

quite quickly and collect in the bottom.

MAINTENANCE

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Bevel gear

The bevel gear is ﬁlled with the right quantity of grease at

the factory. However, before using the machine you

should check that the bevel gear is ﬁlled three-quarters

full with grease. Use HUSQVARNA special grease.

The grease in the bevel gear does not normally need to

be changed except if repairs are carried out.

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.

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