Husqvarna K 40 Manuale utente

Operator´s manual

40/45

101 88 42-26

Please read these instructions carefully and make

sure you understand them before using the saw.

2– English

Symbols on the chain saw:

CAUTION! Chain saws can be dangerous!

Careless or incorrect use can result in

serious or fatal injury to the operator or

others.

Please read the instructions carefully and

make sure you understand them before

using the saw.

Always wear:

• Approved protective helmet

• Approved hearing protection

• Protective glasses or visor

Switch off the engine by moving the stop

switch to the STOP position before carrying

out any checks or maintenance.

Always wear approved protective gloves.

Regular cleaning is required.

Visual check.

Protective glasses or a visor must be worn.

KEY TO SYMBOLS

Symbols in the operator’s manual:

English – 3

CONTENTS Contents

Key to symbols ..........................................2

Safety instructions

Personal protective equipment........................ 4

Chain saw safety equipment ........................... 4

Inspecting, maintaining and servicing chain saw safety

equipment............................................................................ 8

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

How to avoid kiclback .....................................16

General safety precautions.............................18

General working instructions ......................... 19

What is what?

What is what? .................................................................... 24

Assembly

Mounting guide bar and chain ........................................... 25

Fuel handling

Fuelmix.............................................................................. 26

Fuelling.............................................................................. 27

Start and stop

Start and stop .................................................................... 28

Maintenance

Carburettor ........................................................................ 29

Starter device .................................................................... 30

Air filter .............................................................................. 31

Spark plug ......................................................................... 31

Muffler................................................................................ 31

Needle bearing maintenance ............................................ 31

Cooling system.................................................................. 32

Centrifugal cleaning ”Air Injection” .................................... 32

Daily maintenance............................................................. 32

Weekly maintenance ......................................................... 33

Monthly maintenance ........................................................ 33

Technical data

40 ...................................................................................... 34

45 ...................................................................................... 34

Before using a new saw

• Read the instructions carefully.

• Check cutting equipment is correctly fitted and adjusted. See

page 25.

• Refuel and start the saw. Check the carburettor settings.

See pages 26-29.

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

chain, see page 14.

IMPORTANT! If the carburettor mixture is too lean it greatly

increases the risk of engine failure.

Poor maintenance of the air filter will cause carbon build-up on

the spark plug and lead to difficult starting.

If the chain is badly adjusted it will cause increased wear or

damage to the bar, drive sprocket and chain.

Under no circumstances should you modify

the original design of the chain saw without

approval from the manufacturer. Always use

genuine spare parts. Unauthorized

modifications or accessories may lead to

serious injury or death.

!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 these

instructions.

4– English

CHAIN SAW SAFETY EQUIPMENT

This section explains the various safety features of the saw,

how they work, and basic inspection and maintenance you

should carry out to ensure safe operation. (See the

”What is

what?”

section to find out where these components are on Your

saw).

NEVER USE A CHAIN SAW THAT HAS

FAULTY SAFETY EQUIPMENT! Carry out the

inspection, maintenance and service routines

listed in this section.

1 Chain brake and front

hand guard

2 Throttle lock

3 Chain catcher

4 Right hand guard

5 Vibration damping system

6 Stop switch

7 Muffler

8 Cutting equipment (see

”Cutting equipment”

section).

SAFETY INSTRUCTIONS

PERSONAL PROTECTIVE EQUIPMENT

MOST CHAIN SAW ACCIDENTS HAPPEN

WHEN THE CHAIN TOUCHES THE OPERA-

TOR. You must wear approved protective

equipment whenever you use a chain saw.

Personal protective equipment cannot

eliminate the risk of injury but it will reduce

the degree of injury if an accident does

happen. Ask your chain saw dealer for help

in choosing the right equipment.

• PROTECTIVE HELMET

• HEARING PROTECTION

• PROTECTIVE GLASSES

OR VISOR

• GLOVES WITH

SAW PROTECTION

• PROTECTIVE TROUSERS

WITH SAW PROTECTION

• BOOTS WITH SAW

PROTECTION, STEEL

TOE-CAP AND NON-SLIP

SOLE

Generally clothes should be

close-fitting without restricting

your freedom of movement.

• ALWAYS HAVE A FIRST

AID KIT NEARBY

!Long or continuous exposure to high noise

levels may cause permanent hearing

impairment. Always wear approved hearing

protection when operating a chain saw.

English – 5

1 Chain brake and front hand guard

YOUR chain saw is equipped with a chain brake that is desig-

ned to stop the chain immediately 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.

1 The chain brake (A) can

either be activated

manually (by your left

hand) or automatically by

the inertia release

mechanism (a free-

swinging pendulum). On

most of our models the

front hand guard acts as a

counterweight in case of

kickback.

The brake is applied

when the front hand

guard (B) is pushed

forwards.

This movement activates

a spring-loaded

mechanism that tightens

the Brake Band (C)

around the engine drive

system (D) (Clutch Drum).

SAFETY INSTRUCTIONS

2 The front hand guard is

notdesigned solely to

activate the chain brake.

Another important safety

feature is that it prevents

the chain from hitting your

left hand if you lose your

grip on the front handle.

3 You can also use the

chain brake as a

temporary brake when you

change position or if you

put the saw down for a

short time. You should

also apply the chain brake

manually if there is a risk

of the chain accidentally

hitting anyone or anything

close by.

4 To release the chain brake

pull the front hand guard

backwards, towards the

front handle.

5 As mentioned in section A,

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.

6– English

6 The way the chain brake is triggered, either manually or

automatically, 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 will be

activated by the

movement of the

counterweight (INERTIA

ACTIVATED).

If the kickback is less

violent or the kickback

zone of the bar is closer

to you the chain brake will

be activated manually by

the movement of your left

hand.

7 During felling your left

hand grasps the front

handle in such a way that

it cannot activate the front

hand guard. In this

position the chain brake

can only be activated by

the inertia action of the

counterweight.

The inertia activated

chain brake increases

your safety but there are

certain factors to

remember (see point 6

above).

2 Throttle lock

The throttle lock is designed

to prevent accidental opera-

tion of the throttle control.

When you press the lock (A)

(i.e. when you grasp the

handle) it releases the throttle

trigger (B).

When you release the handle

the throttle trigger 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 when you release

the handle.

3 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 section on

”Assembly”

) and if the bar and

chain are properly serviced

and maintained.

(See section on

”General

working instructions”

4 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.

SAFETY INSTRUCTIONS

English – 7

5 Vibration damping system

Your chain saw is equipped

with a vibration damping

system that is designed to

minimise vibrations and make

operation easier.

When you use a chain saw

vibrations are generated by

the uneven contact between

the chain and the wood you

are cutting.

Cutting hardwoods (most

broadleaf trees) creates more

vibration than cutting

softwoods (most conifers).

Cutting with a chain that is

blunt or faulty (wrong type or

badly sharpened, see section

D) will increase the vibration

level.

The vibration damping system

reduces the vibrations

transmitted from the engine

and chain to the handles of

the chain saw. The body of

the saw, including the cutting

equipment, is insulated from

the handles by vibration

damping units.

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.

These 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.

SAFETY INSTRUCTIONS

!The exhaust fumes from the engine are hot

and may contain sparks which can start a fire.

Never start the saw indoors or near

combustible material!

!The muffler gets very hot in use and remains

so for a short time afterwards. DO NOT

TOUCH THE MUFFLER IF IT IS HOT!

6 Stop switch

Use the stop switch to switch

off the engine.

7 Muffler

The muffler is designed to keep noise levels to a minimum and

to direct exhaust fumes away from the user.

In countries with a hot climate

there is a high risk of forest

fires. Our chain saws are

therefore fitted with a SPARK

ARRESTOR MESH.

Check whether your saw is

fitted with such a mesh.

With this type of muffler it is

very important that you follow

the instructions on checking,

maintaining and servicing your

saw (see the section on

”Inspecting, maintaining and

servicing chain saw safety

equipment”

8– English

3 Checking the automatic brake

Hold the chain saw over a

stump or other firm object.

Let go of the front handle

so that the bar falls onto

the stump.

When the bar hits the

stump the brake should

be applied.

Inspecting, maintaining and servicing

chain saw safety equipment

SPECIAL TRAINING IS REQUIRED to service

and repair chain saws. This is especially true

of chain saw safety equipment. If your chain

saw fails any of the checks described below

take it to 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 saw is not a SERVICING DEALER, ask

him for the address of your nearest SERVICE

AGENT.

1 Chain brake and front hand guard

1 Checking brake band wear

Brush off any sawdust,

resin and dirt from the

chain brake and clutch

drum. Dirt and wear can

impair operation of the

brake.

Regularly check that the

brake band is at least 0.6

mm thick at its thinnest

point.

SAFETY INSTRUCTIONS

4 Checking the brake trigger

Start the chain saw and

place it on firm ground.

Make sure the chain does

not touch the ground or

any other object.

Grasp the saw firmly,

wrapping your fingers and

thumbs around the

handles.

Apply full throttle and

activate the chain brake

by tilting your wrist

forward onto the front

hand guard. Do not let go

of the front handle.

The chain should stop

immediately.

2 Checking the front hand guard

A Make sure the

FRONT HAND GUARD

is not damaged and

that there are no visible

defects such as cracks.

B Move the front hand

guard forwards and

back to make sure it

runs freely and that it is

securely anchored to

the clutch cover.

English – 9

SAFETY INSTRUCTIONS

4 Right hand guard

Check that the right hand

guard is not damaged and

that there are no visible

defects, such as cracks.

5 Vibration damping system

Regularly check the

vibration damping units

for cracks or deformation

Make sure the vibration

damping units are

securely attached to the

engine unit and handles.

6 Stop switch

Start the engine and

make sure the engine

stops when you move the

stop switch to the stop

setting.

2 Throttle lock

1 Make sure the throttle

control is locked at the

idle setting when you

release the throttle lock.

2 Press the throttle lock and

make sure it returns to its

original position when you

release it.

3 Check that the throttle

control and throttle lock

move freely and that the

return springs work

properly.

4 Start the saw and apply

full throttle. Release the

throttle control and check

that the chain stops and

remains stationary. If the

chain rotates when the

throttle is on idle setting

you should check the

carburettor idle

adjustment. See the

section on

”Maintenance”

3 Chain catcher

Check that the CHAIN

CATCHER is not

damaged and is firmly

attached to the body of

the saw.

10– English

7 Muffler

Never use a chain saw

that has a faulty muffler.

Regularly check that the

muffler is securely

attached to the chain saw.

If the muffler on your saw

is fitted with a spark

arrestor mesh this must

be cleaned regularly. A

blocked mesh will cause

the engine to overheat

and may lead to serious

damage.

Never use a muffler if

the spark arrestor mesh

is missing or defective.

NEVER USE A CHAIN SAW WITH FAULTY

SAFETY EQUIPMENT. CARRY OUT THE

CHECKS AND MAINTENANCE MEASURES

DESCRIBED IN THIS SECTION. IF YOUR

CHAIN SAW FAILS ANY OF THESE CHECKS

CONTACT YOUR SERVICE AGENT TO GET IT

REPAIRED.

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 chain breaking or jumping.

•Obtain maximum cutting performance.

•Extend the life of cutting equipment.

The 5 basic rules

1Only use cutting

equipment

recommended by us!

See the

”Technical data”

section.

2Keep the chain cutting

teeth properly

sharpened! Follow our

instructions and use the

recommended file

gauge. A damaged or

badly sharpened chain

increases the risk of

accidents.

3Maintain the correct

raker clearance! Follow

our instructions and

use the recommended

raker gauge. Too large a

clearance increases the

risk of kickback.

4Keep the chain properly

tesioned! If the chain is

slack it is more likely to

jump off and lead to

increased wear on the

bar, chain and drive

sprocket.

5Keep 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.

SAFETY INSTRUCTIONS

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