Husqvarna 543 XP G Manuel utilisateur

11-0556_Husqvarna manual_half_usletter.indd 1 2012-11-13 10:25

543 XP

543 XPG

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.

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H1154914-49,543XP,543XPG,NA.fm Page 1 Thursday, December 18, 2014 8:54 AM

KEY TO SYMBOLS

2 – English

Symbols on the machine:

WARNING! Chain saws can be

dangerous! Careless or improper use

can result in serious or fatal injury to the

operator or others.

Please read the operator’s manual

carefully and make sure you understand

the instructions before using the

machine.

Always wear:

• Approved protective helmet

• Approved hearing protection

• Protective goggles or a visor

Both of the operator

′

s hands must be

used to operate the chain saw.

Never operate a chain saw holding it

with one hand only.

Never let the guide bar tip come in

contact with any object.

WARNING! Kickback may occur when

the nose or tip of the guide bar touches

an object, and cause a lightning fast

reverse reaction, kicking the guide bar

up and towards the operator. May cause

serious personal injury.

Chain brake, activated (right)

Chain brake, not activated (left)

Choke lever in ”open position”.

Choke lever in ”closed position”.

Air purge.

Refuelling.

Chain oil ﬁll.

Adjustment of the oil pump.

For Canada only:

Recommended cutting

equipment in this example:

- Bar length 16 inches

- Max tooth count for the bar

nose sprocket is 10T

- Chain type Husqvarna H30

Other approved bar and chain

combinations in Operator’s Manual.

Measured maximum kickback value with

brake for the bar and chain combination

on the label.

Measured maximum kickback value

without triggering the brake, for the bar

and chain combination on the label.

Other symbols/decals on the machine refer to special

certiﬁcation requirements for certain markets.

XX

The engine exhaust from this product

contains chemicals known to the State

of California to cause cancer, birth

defects or other reproductive harm.

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KEY TO SYMBOLS

English

–

3

Symbols in the operator’s

manual:

Switch off the engine by moving the

stop switch to the STOP position

before carrying out any checks or

maintenance. CAUTION! The start/

stop switch automatically returns to

run 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.

Always wear approved protective

gloves.

Regular cleaning is required.

Visual check.

Protective goggles or a visor must be

worn.

Refuelling.

Filling with oil and adjusting oil ﬂow.

The chain brake must be engaged when

the chain saw is started.

WARNING! Kickback may occur when

the nose or tip of the guide bar touches

an object, and cause a lightning fast

reverse reaction, kicking the guide bar up

and towards the operator. May cause

serious personal injury.

You will ﬁnd the following labels on your chain saw:

EPA III

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.

Maintenance, replacement, or repair of the emission

control devices and system may be performed by any

nonroad engine repair establishment or individual.

EMISSION CONTROL INFORMATION

THIS ENGINE MEETS U.S. EPA AND CALIFORNIA

EXH/EVP REGS FOR S.O.R.E.

HUSQVARNA AB HUSKVARNA SWEDEN

Jan. 2010

29 cc

300 HOURS

REFER TO OPERATOR'S MANUAL FOR MAINTE-

NANCE, SPECIFICATIONS AND ADJUSTMENTS.

EXH;EM/EVP;SP

AHQZS.0294BK

ENGINE FAMILY :

EMISSION CONTROL SYSTEM :

COMPLIANCE PERIOD :

MANUFACTURED :

DISPL.:

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CONTENTS

4 – English

Contents

KEY TO SYMBOLS

Symbols on the machine: ...................................... 2

Symbols in the operator’s manual: ........................ 3

CONTENTS

Contents ............................................................... 4

INTRODUCTION

Dear customer! ..................................................... 5

WHAT IS WHAT?

What is what on the chain saw? ........................... 6

GENERAL SAFETY PRECAUTIONS

Before using a new chain saw .............................. 7

For Canada only: .................................................. 7

Important .............................................................. 8

Always use common sense .................................. 8

Personal protective equipment ............................. 8

Machine

′

s safety equipment ................................. 9

Cutting equipment ................................................. 11

ASSEMBLY

Fitting the bar and chain ....................................... 17

FUEL HANDLING

Fuel ....................................................................... 18

Fueling .................................................................. 19

Fuel safety ............................................................ 19

STARTING AND STOPPING

Starting and stopping ............................................ 20

WORKING TECHNIQUES

Before use: ............................................................ 22

General working instructions ................................ 22

How to avoid kickback ........................................... 28

MAINTENANCE

General ................................................................. 29

Carburetor adjustment .......................................... 29

Checking, maintaining and servicing chain saw

safety equipment .................................................. 30

Mufﬂer ................................................................... 32

Starter ................................................................... 32

Air ﬁlter .................................................................. 34

Spark plug ............................................................. 34

Lubricating the bar tip sprocket ............................. 34

Needle bearing lubrication .................................... 34

Adjustment of the oil pump. ................................... 35

Cooling system ..................................................... 35

”Air Injection” centrifugal cleaning ......................... 35

Winter use ............................................................. 35

Heated handles ..................................................... 36

Maintenance schedule .......................................... 37

TECHNICAL DATA

Technical data ....................................................... 38

Saw chain ﬁling and ﬁle gauges ........................... 39

FEDERAL AND CALIFORNIA EMISSIONS

CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS 40

AMERICAN STANDARD SAFETY

PRECAUTIONS

Safety precautions for chain saw users ................ 42

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English – 5

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, contact us at our website: www.husqvarna.com

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6 – English

WHAT IS WHAT?

What is what on the chain saw?

11

27

1516

121314

21 24

2623

29

28

18

20

19

17

4

6

8

9

5

1

2

3

25

7

10

22

1 Air ﬁlter cover

2 Throttle lockout

3 Rear handle with right hand guard

4 Information and warning decal

5 Stop switch

6 Fuel tank

7 Adjuster screws carburetor

8 Starter handle

9 Starter

10 Chain oil tank

11 Bar tip sprocket

12 Guide bar

13 Saw chain

14 Mufﬂer

15 Chain brake and front hand guard

16 Front handle

17 Choke control

18 Throttle trigger

19 Switch for heated handle (543 XPG)

20 Air purge.

21 Clutch cover

22 Oil pump adjustment screw

23 Product and serial number plate

24 Chain tensioning screw

25 Chain catcher

26 Bumper spike

27 Guide bar cover

28 Combination spanner

29 Operator’s manual

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GENERAL SAFETY PRECAUTIONS

English

–

7

Before using a new chain saw

• Please read this manual carefully.

• Check that the cutting equipment is correctly ﬁtted and

adjusted. See instructions under the heading

Assembly.

• Refuel and start the chain saw. See the instructions

under the headings Fuel Handling and Starting and

Stopping.

• Do not use the chain saw until sufﬁcient chain oil has

reached the chain. See instructions under the heading

Lubricating cutting equipment.

• Long-term exposure to noise can result in permanent

hearing impairment. So always use approved hearing

protection.

For Canada only:

!

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 chain saw is a dangerous

tool if used carelessly or incorrectly and

can cause serious, even fatal injuries. It

is very important that you read and

understand the contents of this

operator’s manual.

!

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! Long term inhalation of the

engine’s exhaust fumes, chain oil mist

and dust from sawdust can represent a

health risk.

!

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! Never allow children to use or

be in the vicinity of the machine. As the

machine is equipped with a spring-

loaded 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.

!

WARNING! When using a chain saw, a

ﬁre extinguisher should be available.

!

WARNING! Keep handles dry, clean and

free of oil.

!

WARNING! Beware of carbon monoxide

poisoning. Operate the chainsaw in well

ventilated areas only.

!

WARNING! Do not attempt a pruning or

limbing operation in a standing tree

unless speciﬁcally trained to do so.

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GENERAL SAFETY PRECAUTIONS

8 – English

Important

Always use common sense

It is not possible to cover every conceivable situation you

can face when using a chain saw. Always exercise care

and use your common sense. Avoid all situations which

you consider to be beyond your capability. If you still feel

uncertain about operating procedures after reading these

instructions, you should consult an expert before

continuing. Do not hesitate to contact your dealer or us if

you have any questions about the use of the chain saw.

We will willingly be of service and provide you with advice

as well as help you to use your chain saw both efﬁciently

and safely. Attend a training course in chain saw usage if

possible. Your dealer, forestry school or your library can

provide information about which training materials and

courses are available.

Work is constantly in progress to improve the design and

technology - improvements that increase your safety and

efﬁciency. Visit your dealer regularly to see whether you

can beneﬁt from new features that have been introduced.

Personal protective equipment

Always wear:

• Approved protective helmet

• Hearing protection

• Protective goggles or a visor

• Gloves with saw protection

• Trousers with saw protection

• Boots with saw protection, steel toe-cap and non-slip

sole

• Always have a ﬁrst aid kit nearby.

• Fire Extinguisher and Shovel

IMPORTANT!

This chain saw for forest service is designed for forest

work such as felling, limbing and cutting.

National regulation can restrict the use of the machine.

You should only use the saw with the bar and chain

combinations we recommend in the chapter Technical

data.

Never use the machine if you are fatigued, while under

the inﬂuence of alcohol or drugs, medication or anything

that could affect your vision, alertness, coordination or

judgement.

Wear personal protective equipment. See instructions

under the heading ”Personal protective equipment”.

Do not modify this product or use it if it appears to have

been modiﬁed by others.

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.

Never use any accessories other than those

recommended in this manual. See instructions under

the headings Cutting equipment and Technical data.

CAUTION! Always wear protective glasses or a face

visor to reduce the risk of injury from thrown objects. A

chain saw is capable of throwing objects, such as wood

chips, small pieces of wood, etc, at great force. This can

result in serious injury, especially to the eyes.

!

WARNING! Running an engine in a

conﬁned or badly ventilated area can

result in death due to asphyxiation or

carbon monoxide poisoning.

!

WARNING! Faulty cutting equipment or

the wrong combination of bar and saw

chain increases the risk of kickback!

Only use the bar/saw chain combinations

we recommend, and follow the ﬁling

instructions. See instructions under the

heading Technical data.

!

WARNING! Most chain saw accidents

happen when the chain touches the

operator. 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.

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GENERAL SAFETY PRECAUTIONS

English

–

9

Generally clothes should be close-ﬁtting without

restricting your freedom of movement.

Machine

′′

s safety equipment

In this section the machine’s safety features and their

function are explained. For inspection and maintenance

see instructions under the heading Checking, maintaining

and servicing chain saw safety equipment. See

instructions under the heading, What is what?, to ﬁnd

where these parts are located 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.

Chain brake and front hand guard

Your chain saw is equipped with a chain brake that is

designed to stop the chain if you get a kickback. The chain

brake reduces the risk of accidents, but only you can

prevent them.

Take care when using your saw and make sure the

kickback zone of the bar never touches any object.

• The chain brake (A) can either be activated manually

(by your left hand) or automatically by the inertia

release mechanism.

• This movement activates a spring-loaded mechanism

that tightens the brake band (C) around the engine

drive system (D) (clutch drum).

• The front hand guard is not designed solely to activate

the chain brake. Another important feature is that it

reduces the risk of your left hand hitting the chain if

you lose grip of the front handle.

• The chain brake must be engaged when the chain

saw is started to prevent the saw chain from rotating.

• Use the chain brake as a ”parking brake” when

starting and when moving over short distances, to

reduce the risk of moving chain accidentally hitting

your leg or anyone or anything close by.

• To release the chain brake pull the front hand guard

backwards, towards the front handle.

• Kickback can be very sudden and violent. Most

kickbacks are minor and do not always activate the

chain brake. If this happens you should hold the chain

saw ﬁrmly and not let go.

• The way the chain brake is activated, either manually

or automatically by the inertia release mechanism,

depends on the force of the kickback and the position

of the chain saw in relation to the object that the

kickback zone of the bar strikes.

If you get a violent kickback while the kickback zone of

the bar is farthest away from you the chain brake is

IMPORTANT! Sparks can come from the mufﬂer, the bar

and chain or other sources. Always have ﬁre

extinguishing tools available if you should need them.

Help prevent forest ﬁres.

!

WARNING! Never use a machine with

defective safety components. Safety

equipment must be inspected and

maintained. See instructions under the

heading Checking, maintaining and

servicing chain saw safety equipment. If

your machine does not pass all the

checks, take the saw to a servicing

dealer for repair.

A

C

D

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GENERAL SAFETY PRECAUTIONS

10 – English

designed to be activated by the inertia in the kickback

direction.

If the kickback is less violent or the kickback zone of

the bar is closer to you the chain brake is designed to

be activated manually by the movement of your left

hand.

• In the felling position the left hand is in a position that

makes manual activation of the chain brake

impossible. With this type of grip, that is when the left

hand is placed so that it cannot affect the movement

of the front hand guard, the chain brake can only be

activated by the inertia action.

Will my hand always activate the chain

brake during a kickback?

No. It takes a certain force to move the hand guard

forward. If your hand only lightly touches the front guard

or slips over it, the force may not be enough to trigger the

chain brake. You should also maintain a ﬁrm grip of the

chain saw handles while working. If you do and

experience a kickback, your hand may never leave the

front handle and will not activate the chain brake, or the

chain brake will only activate after the saw has swung

around a considerable distance. In such instances, the

chain brake might not have enough time to stop the saw

chain before it touches you.

There are also certain positions in which your hand

cannot reach the front hand guard to activate the chain

brake; for example, when the saw chain is held in felling

position.

Will my inertia activated chain brake

always activate during kickback in the

event of a kickback?

No. First your brake must be in working order. Testing the

brake is simple, see instructions under the heading

Checking, maintaining and servicing chain saw safety

equipment. We recommend you do before you begin each

work session. Second the kickback must be strong

enough to activate the chain brake. If the chain brake is

too sensitive it would activate all the time which would be

a nuisance.

Will my chain brake always protect me

from injury in the event of a kickback?

No. First, the chain brake must be in working order to

provide the intended protection. Second, it must be

activated during the kickback as described above to stop

the saw chain. Third, the chain brake may be activated but

if the bar is too close to you the brake might not have

enough time to slow down and stop the chain before the

chain saw hits you.

Only you and proper working technique can eliminate

kickback and its danger.

Throttle 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 arrangement means that the

throttle control is automatically locked at the idle setting.

Chain catcher

The chain catcher is designed to catch the chain if it snaps

or jumps off. This should not happen if the chain is

properly tensioned (see instructions under the heading

Assembly) and if the bar and chain are properly serviced

and maintained (see instructions under the heading

General working instructions).

A

B

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GENERAL SAFETY PRECAUTIONS

English

–

11

Right hand guard

Apart from protecting your hand if the chain jumps or

snaps, the right hand guard stops branches and twigs

from interfering with your grip on the rear handle.

Vibration damping system

Your machine is equipped with a vibration damping

system that is designed to reduce vibration and make

operation easier.

The machine

′

s vibration damping system reduces the

transfer of vibration between the engine unit/cutting

equipment and the machine

′

s handle unit. The body of the

chain saw, including the cutting equipment, is insulated

from the handles by vibration damping units.

Cutting hardwoods (most broadleaf trees) creates more

vibration than cutting softwoods (most conifers). Cutting

with cutting equipment that is blunt or faulty (wrong type

or badly sharpened) will increase the vibration level.

Stop switch

Use the stop switch to switch off the engine.

Mufﬂer

The mufﬂer is designed to keep noise levels to a minimum

and to direct exhaust fumes away from the user.

In areas with a hot, dry climate there is a high risk of ﬁres.

These areas are sometimes subject to government rules

requiring among other things the mufﬂer must be

equipped with an approved type of spark arrestor screen.

Cutting equipment

This section describes how to choose and maintain your

cutting equipment in order to:

• Reduce the risk of kickback.

• Reduce the risk of the saw chain breaking or jumping

off the bar.

• Obtain optimal cutting performance.

• Extend the life of cutting equipment.

• Avoid increasing vibration levels.

General rules

•

Only use cutting equipment recommended by us!

See instructions under the heading Technical data.

•

Keep the chain’s cutting teeth properly

sharpened! Follow our instructions and use the

recommended ﬁle gauge.

A damaged or badly

sharpened chain increases the risk of accidents.

!

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. These

symptoms may be increased in cold

temperatures.

!

WARNING! 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!

CAUTION! The 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.

!

WARNING! Never use a saw without a

mufﬂer, or with a damaged mufﬂer. A

damaged mufﬂer may substantially

increase the noise level and the ﬁre

hazard. Keep ﬁre ﬁghting equipment

handy. If a spark arrestor screen is

required in your area, never use the saw

without or with a broken spark arrestor

screen.

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GENERAL SAFETY PRECAUTIONS

12 – English

•

Maintain the correct depth gauge setting! Follow

our instructions and use the recommended depth

gauge clearance.

Too large a clearance increases

the risk of kickback.

•

Keep the chain properly tensioned!

If the chain is

slack it is more likely to jump off and lead to increased

wear on the bar, chain and drive sprocket.

•

Keep cutting equipment well lubricated and

properly maintained!

A poorly lubricated chain is

more likely to break and lead to increased wear on the

bar, chain and drive sprocket.

Cutting equipment designed to reduce

kickback

The only way to avoid kickback is to make sure that the

kickback zone of the bar never touches anything.

By using cutting equipment with ”built-in” kickback

reduction and keeping the chain sharp and well-

maintained you can reduce the effects of kickback.

Guide bar

The smaller the tip radius the lower the chance of

kickback.

Saw chain

A chain is made up of a number of links, which are

available in standard and low-kickback versions.

Some terms that describe the bar and chain

To maintain the safety features of the cutting equipment,

you should replace a worn or damaged bar or chain with

a bar and chain combinations recommended by

Husqvarna. See instructions under the heading Technical

Data for a list of replacement bar and chain combinations

we recommend.

Guide bar

• Length (inches/cm)

• Number of teeth on bar tip sprocket (T).

• Chain pitch (inches). The spacing between the drive

links of the chain must match the spacing of the teeth

on the bar tip sprocket and drive sprocket.

• Number of drive links. The number of drive links is

determined by the length of the bar, the chain pitch

and the number of teeth on the bar tip sprocket.

• Bar groove width (inches/mm). The groove in the bar

must match the width of the chain drive links.

• Chain oil hole and hole for chain tensioner. The bar

must be matched to the chain saw design.

Saw chain

• Chain pitch (inches)

!

WARNING! Faulty cutting equipment or

the wrong combination of bar and saw

chain increases the risk of kickback!

Only use the bar/saw chain combinations

we recommend, and follow the ﬁling

instructions. See instructions under the

heading Technical data.

IMPORTANT! No saw chain design eliminates the

danger of kickback.

!

WARNING! Any contact with a rotating

saw chain can cause extremely serious

injuries.

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GENERAL SAFETY PRECAUTIONS

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13

• Drive link width (mm/inches)

• Number of drive links.

Sharpening your chain and adjusting

depth gauge setting

General information on sharpening cutting teeth

• Never use a blunt chain. When the chain is blunt you

have to exert more pressure to force the bar through

the wood and the chips will be very small. If the chain

is very blunt it will produce wood powder and no chips

or shavings.

• A sharp chain eats its way through the wood and

produces long, thick chips or shavings.

• The cutting part of the chain is called the cutter and

consists of a cutting tooth (A) and the depth gauge

(B). The cutters cutting depth is determined by the

difference in height between the two (depth gauge

setting).

When you sharpen a cutting tooth there are four important

factors to remember.

1 Filing angle

2 Cutting angle

3 File position

4 Round ﬁle diameter

It is very difﬁcult to sharpen a chain correctly without the

right equipment. We recommend that you use our ﬁle

gauge. This will help you obtain the maximum kickback

reduction and cutting performance from your chain.

See instructions under the heading Technical data for

information about sharpening your chain.

Sharpening cutting teeth

To sharpen cutting teeth you will need a round ﬁle and a

ﬁle gauge. See instructions under the heading Technical

data for information on the size of ﬁle and gauge that are

recommended for the chain ﬁtted to your chain saw.

• Check that the chain is correctly tensioned. A slack

chain will move sideways, making it more difﬁcult to

sharpen correctly.

• Always ﬁle cutting teeth from the inside face. Reduce

the pressure on the return stroke. File all the teeth on

one side ﬁrst, then turn the chain saw and ﬁle the teeth

on the other side.

• File all the teeth to the same length. When the length

of the cutting teeth is reduced to 5/32 inch (4 mm) the

chain is worn out and should be replaced.

A

B

!

WARNING! Departure from the

sharpening instructions considerably

increases the risk of kickback.

min 4 mm

(5/32")

H1154914-49,543XP,543XPG,NA.fm Page 13 Thursday, December 18, 2014 8:54 AM

GENERAL SAFETY PRECAUTIONS

14 – English

General advice on adjusting depth gauge setting

• When you sharpen the cutting tooth (A) the depth

gauge setting (C) will decrease. To maintain optimal

cutting performance the depth gauge (B) has to be

ﬁled down to achieve the recommended depth gauge

setting. See instructions under the heading Technical

data to ﬁnd the correct depth gauge setting for your

particular chain.

Adjustment of depth gauge setting

• The cutting teeth should be newly sharpened before

adjusting the depth gauge setting. We recommend

that you adjust the depth gauge setting every third

time you sharpen the cutting teeth. NOTE! This

recommendation assumes that the length of the

cutting teeth is not reduced excessively.

• You will need a ﬂat ﬁle and a depth gauge tool. We

recommend that you use our depth gauge tool to

acheive the correct depth gauge setting and bevel for

the depth gauge.

• Place the depth gauge tool over the chain. Detailed

information regarding the use of the depth gauge tool,

will be found on the package for the depth gauge tool.

Use the ﬂat ﬁle to ﬁle off the tip of the depth gauge that

protrudes through the depth gauge tool. The depth

gauge setting is correct when you no longer feel

resistance as you draw the ﬁle along the depth gauge

tool.

Tensioning the chain

The more you use a chain the longer it becomes. It is

therefore important to adjust the chain regularly to take up

the slack.

Check the chain tension every time you refuel. NOTE! A

new chain has a running-in period during which you

should check the tension more frequently.

Tension the chain as tightly as possible, but not so tight

that you cannot pull it round freely by hand.

• Loosen the bar nuts that hold the clutch cover/chain

brake. Use the combination spanner. Then tighten the

bar nuts by hand as tight as you can.

• Raise the tip of the bar and stretch the chain by

tightening the chain tensioning screw using the

combination spanner. Tighten the chain until it does

not sag from the underside of the bar.

• Use the combination spanner to tighten the bar nuts

while lifting the tip of the bar at the same time. Check

that you can pull the chain round freely by hand and

that it does not sag from the underside of the bar.

The position of the chain tensioning screw on our chain

saws varies from model to model. See instructions under

the heading What is what? to ﬁnd out where it is on your

model.

!

WARNING! The risk of kickback is

increased if the depth gauge setting is

too large!

A

B

C

!

WARNING! A slack chain may jump off

the bar and cause serious or even fatal

injury.

H1154914-49,543XP,543XPG,NA.fm Page 14 Thursday, December 18, 2014 8:54 AM

GENERAL SAFETY PRECAUTIONS

English – 15

Lubricating cutting equipment

Chain oil

Chain oil must demonstrate good adhesion to the chain

and also maintain its ﬂow characteristics regardless of

whether it is warm summer or cold winter weather.

As a chain saw manufacturer we have developed an

optimal chain oil which has a vegetable oil base. We

recommend the use of our own oil for both maximum

chain life and to minimise environmental damage. If our

own chain oil is not available, standard chain oil is

recommended.

Never use waste oil! Using waste oil can be dangerous

to you and damage the machine and environment.

Filling with chain oil

• All our chain saws have an automatic chain lubrication

system. On some models the oil ﬂow is also

adjustable.

• The saw chain oil tank and the fuel tank are designed

so that the fuel runs out before the saw chain oil.

However, this safety feature requires that you use the

right sort of chain oil (if the oil is too thin it will run out

before the fuel), and that you also use the

recommended cutting equipment (a bar that is too

long will use more chain oil).

Checking chain lubrication

• Check the chain lubrication each time you refuel. See

instructions under the heading Lubricating the bar tip

sprocket.

Aim the tip of the bar at a light coloured surface about

20 cm (8 inches) away. After 1 minute running at 3/4

throttle you should see a distinct line of oil on the light

surface.

If the chain lubrication is not working:

• Check that the oil channel in the bar is not obstructed.

Clean if necessary.

• Check that the groove in the edge of the bar is clean.

Clean if necessary.

• Check that the bar tip sprocket turns freely and that

the lubricating hole in the tip sprocket is not blocked.

Clean and lubricate if necessary.

If the chain lubrication system is still not working after

carrying out the above checks and associated measures

you should contact your servicing dealer.

!

WARNING! Poor lubrication of cutting

equipment may cause the chain to snap,

which could lead to serious, even fatal

injuries.

IMPORTANT! When using vegetable based saw chain

oil, dismantle and clean the groove in the bar and saw

chain before long-term storage. Otherwise there is a risk

of the saw chain oil oxidizing, which will result in the saw

chain becoming stiff and the bar tip sprocket jamming.

H1154914-49,543XP,543XPG,NA.fm Page 15 Thursday, December 18, 2014 8:54 AM

GENERAL SAFETY PRECAUTIONS

16 – English

Chain drive sprocket

The clutch drum is ﬁtted with following drive sprocket:

Rim sprocket (replaceable)

Regularly check the degree of wear on the drive sprocket.

Replace if wear is excessive. Replace the drive sprocket

whenever you replace the chain.

Needle bearing lubrication

This version of sprocket has a needle bearing on the drive

shaft, which has to be greased regularly (once a week).

CAUTION! Use only high quality bearing grease or engine

oil.

Checking wear on cutting equipment

Check the chain daily for:

• Visible cracks in rivets and links.

• Whether the chain is stiff.

• Whether rivets and links are badly worn.

Replace the saw chain if it exhibits any of the points

above.

We recommend you compare the existing chain with a

new chain to decide how badly the existing chain is worn.

When the length of the cutting teeth has worn down to

only 5/32 inch (4 mm) the chain must be replaced.

Guide bar

Check regularly:

• Whether there are burrs on the edges of the bar.

Remove these with a ﬁle if necessary.

• Whether the groove in the bar has become badly

worn. Replace the bar if necessary.

• Whether the tip of the bar is uneven or badly worn. If

a hollow forms on the underside of the bar tip this is

due to running with a slack chain.

• To prolong the life of the bar you should turn it over

daily.

!

WARNING! Most chain saw accidents

happen when the chain touches the

operator.

Wear personal protective equipment. See

instructions under the heading ”Personal

protective equipment”.

Do not tackle any job that you feel you

are not adequately trained for. See

instructions under the headings

Personal protective equipment, How to

avoid kickback, Cutting equipment and

General working instructions.

Avoid situations where there is a risk of

kickback. See instructions under the

heading Machine

′′

s safety equipment.

Use the recommended protective

equipment and check its condition. See

instructions under the heading General

working instructions.

Check that all the chain saw safety

features are working. See instructions

under the headings General working

instructions and General safety

precautions.

H1154914-49,543XP,543XPG,NA.fm Page 16 Thursday, December 18, 2014 8:54 AM

ASSEMBLY

English – 17

Fitting the bar and chain

Check that the chain brake is in disengaged position by

moving the front hand guard towards the front handle.

Remove the bar nuts and remove the clutch cover (chain

brake). Take off the transportation guard (A).

Fit the bar over the bar bolts. Place the bar in its rearmost

position. Place the chain over the drive sprocket locate it

in the groove on the bar. Begin on the top edge of the bar.

Make sure that the edges of the cutting links are facing

forward on the top edge of the bar.

Fit the clutch cover and locate the chain adjuster pin in the

hole in the bar. Check that the drive links of the chain ﬁt

correctly over the drive sprocket and that the chain is

correctly located in the groove in the bar. Tighten the bar

nuts ﬁnger tight.

Tension the chain by turning the chain tensioning screw

clockwise using the combination spanner. See

instructions under the heading Tensioning the chain.

The chain is correctly tensioned when it does not sag from

the underside of the bar, but can still be turned easily by

hand. Hold up the bar tip and tighten the bar nuts with the

combination spanner.

When ﬁtting a new chain, the chain tension has to be

checked frequently until the chain is run-in. Check the

chain tension regularly. A correctly tensioned chain

ensures good cutting performance and long life.

Note: If clutch cover is difﬁcult to remove, replace bar nuts,

engage brake and rerelease (an audible click will be

heard if released properly).

!

WARNING! Always wear gloves, when

working with the chain.

H1154914-49,543XP,543XPG,NA.fm Page 17 Thursday, December 18, 2014 8:54 AM

FUEL HANDLING

18 – English

Fuel

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

and must always be run using a mixture of gasoline and

two-stroke 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

• Use good quality unleaded gasoline.

• 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 with continuous high revs (e.g. limbing)

a higher octane is recommended.

Environment fuel

HUSQVARNA recommends the use of alkylate fuel or

environmental fuel for four-stroke engines blended with

two-stroke oil as set out below. Note that carburetor

adjustment may be necessary when changing the type of

fuel (see instructions under the heading Carburetor).

Ethanol fuel

HUSQVARNA recommends commercial available fuel

with maximum 10% ethanol content.

Running-in

Avoid running at a too high speed for extended periods

during the ﬁrst 10 hours.

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.

• Never use two-stroke oil intended for water-cooled

engines, sometimes referred to as outboard oil (rated

TCW).

• Never use oil intended for four-stroke engines.

Mixing ratio

1:50 (2%) for all engines.

Mixing

• 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.

• Mix (shake) the fuel mixture thoroughly before ﬁlling

the machine’s fuel tank.

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

time.

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

should be emptied and cleaned.

Chain oil

• We recommend the use of special oil (chain oil) with

good adhesion characteristics.

• Never use waste oil. This results in damage to the oil

pump, the bar and the chain.

• It is important to use oil of the right grade (suitable

viscosity range) to suit the air temperature.

• In temperatures below 32°F (0°C) some oils become

too viscous. This can overload the oil pump and result

in damage to the oil pump components.

• Contact your service agent when choosing chain oil.

!

WARNING! Always ensure there is

adequate ventilation when handling fuel.

Gasoline, litre Two-stroke oil, litre

2% (1:50)

5 0,10

10 0,20

15 0,30

20 0,40

US gallon US ﬂ. oz.

1 2 1/2

2 1/2 6 1/2

5 12 7/8

H1154914-49,543XP,543XPG,NA.fm Page 18 Thursday, December 18, 2014 8:54 AM

FUEL HANDLING

English – 19

Fueling

Clean the area around the fuel cap. Clean the fuel and

chain oil tanks regularly. The fuel ﬁlter must be replaced

at least once a year. Contamination in the tanks causes

malfunction. Make sure the fuel is well mixed by shaking

the container before refuelling. The capacities of the chain

oil tank and fuel tank are carefully matched. You should

therefore always ﬁll the chain oil tank and fuel tank at the

same time.

Fuel safety

• Never refuel the machine while the engine is running.

• Make sure there is plenty of ventilation when refuelling

or mixing fuel (gasoline and 2-stroke oil).

• Move the machine at least 10 ft (3 m) from the

refuelling point before starting it.

• Never start the machine:

1 If you have spilled fuel or chain oil on the machine.

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

• Always store the chain saw and fuel so that there is no

risk of leakages or fumes coming into contact with

sparks or naked ﬂames from electrical equipment,

electric motors, relays/switches, boilers and the like.

• Always store fuel in an approved container designed

for that purpose.

• For longer periods of storage or for transport of the

chain saw, the fuel and chain oil tanks should be

emptied. Ask where you can dispose of waste fuel and

chain oil at your local gas station.

• The guide bar cover must always be ﬁtted to the

cutting attachment when the machine is being

transported or in storage, in order to prevent accident

contact with the sharp chain. Even a non-moving

chain can cause serious cuts to yourself or persons

you bump into with an exposed chain.

• Remove the spark plug cap from the spark plug.

Activate the chain brake.

• Secure the machine during transport.

Long-term storage

Empty the fuel/oil tanks in a well ventilated area. Store the

fuel in approved cans in a safe place. Fit the guide bar

cover. Clean the machine. See instructions under the

heading Maintenance schedule.

Ensure the machine is cleaned and that a complete

service is carried out before long-term storage.

!

WARNING! Taking the following

precautions, will lessen the risk of ﬁre:

Do not smoke and do not place any hot

objects in the vicinity of fuel.

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 and source before

starting.

!

WARNING! Fuel and fuel vapor are highly

ﬂammable. Take care when handling fuel

and chain oil. Be aware of the risks of

ﬁre, explosion and those associated with

inhalation.

!

WARNING! Never use a machine with

visible damage to the spark plug guard

and ignition cable. A risk of sparking

arises, which can cause a ﬁre.

H1154914-49,543XP,543XPG,NA.fm Page 19 Thursday, December 18, 2014 8:54 AM

STARTING AND STOPPING

20 – English

Starting and stopping

Cold engine

Starting: The chain brake should be activated when

starting the chain saw. Activate the chain brake by

pushing the front hand guard forwards.

Air purge: Press the air purge diaphragm repeatedly until

fuel begins to ﬁll the diaphragm (about 6 times). The

diaphragm need not be completely ﬁlled.

Choke: Set the choke control in the choke position.

Grip the front handle with your left hand. Put your right

foot on the lower section of the rear handle pressing the

machine against the ground.

Pull the starter handle with your right hand and pull out the

starter cord slowly until you feel a resistance (as the

starter pawls engage) then pull ﬁrmly and rapidly until the

engine starts.

Push in the choke control as soon as the engine ﬁres

which can be heard through a "puff" sound. Keep on

pulling the cord powerfully until the engine starts.

Warm engine

Use the same starting procedure as for a cold engine but

without setting the choke control in the choke position.

Grip the front handle with your left hand. Put your right

foot on the lower section of the rear handle pressing the

machine against the ground.

Pull the starter handle with your right hand and pull out the

starter cord slowly until you feel a resistance (as the

starter pawls engage) then pull ﬁrmly and rapidly until the

engine starts.

NOTE! 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.

As the chain brake is still engaged the speed of the engine

must be set to idling as soon as possible, this is achieved

by quickly pressing the throttle trigger once. This prevents

unnecessary wear to the clutch, clutch drum and brake

band.

Note! Pull the front hand guard towards the front handle.

The chain brake is now disengaged. Your saw is ready for

use.

• Never start a chain saw unless the bar, chain and all

covers are ﬁtted correctly. See instructions under the

!

WARNING! Note the following before

starting:

The chain brake must be engaged when

the chain saw is started to reduce the

chance of contact with the moving chain

during starting.

Never start a chain saw unless the bar,

chain and all covers are ﬁtted correctly.

Otherwise the clutch can come loose and

cause personal injuries.

Place the machine on ﬁrm ground. Make

sure you have a secure footing and that

the chain cannot touch anything.

Keep people and animals well away from

the working area.

Never wrap the starter cord around your

hand.

!

WARNING! Long term inhalation of the

engine’s exhaust fumes, chain oil mist

and dust from sawdust can represent a

health risk.

H1154914-49,543XP,543XPG,NA.fm Page 20 Thursday, December 18, 2014 8:54 AM

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