Husqvarna K950 User Manual 2

Operator’s manual (EPA)

K950

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

instructions before using the machine.

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KEY TO SYMBOLS

Key to symbols

WARNING! The machine can be a dangerous tool if used incorrectly or carelessly, which can cause 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:

• Protective helmet

• Hearing protection

• Protective goggles or a visor

• Breathing mask

WARNING! Dust forms when cutting, this can cause injuries if inhaled. Use an approved breathing mask. Avoid inhaling petrol fumes and exhaust fumes. Always provide for good ventilation.

WARNING! Sparks from the cutting blade can cause ﬁre in combustible materials such as: petrol (gas), wood, dry grass etc.

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 protective gloves.

Regular cleaning is required.

Visual check.

Protective goggles or a visor must be worn.

Run position.

Stop, with the return spring to the operating position.

Stop, in the ﬁxed position.

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Contents

KEY TO SYMBOLS

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

CONTENTS

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

WHAT IS WHAT?

What is what on the power cutter? ............................... 4

SAFETY INSTRUCTIONS

Steps before using a new power cutter. ....................... 5

Personal protective equipment ..................................... 5

Machine ′ s safety equipment ........................................ 6

Checking, maintaining and servicing the machine ′ s

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

General safety precautions .......................................... 8

General working instructions ....................................... 9

Cutting blades .............................................................. 11

ASSEMBLY

Assembling the cutting head ........................................ 13

Checking the drive axle and ﬂange washers ............... 13

Fitting the cutting blade ................................................ 13

Guard for the blade ...................................................... 13

FUEL HANDLING

Fuel .............................................................................. 14

Fueling ......................................................................... 14

STARTING AND STOPPING

Starting and stopping ................................................... 15

MAINTENANCE

Tensioning the drive belt .............................................. 16

Replacing the drive belt ............................................... 16

Belt pulley and clutch ................................................... 16

Carburetor .................................................................... 16

Fuel ﬁlter ...................................................................... 17

Air ﬁlter ......................................................................... 17

Starter .......................................................................... 18

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

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

Mufﬂer .......................................................................... 19

General maintenance instructions ............................... 20

TECHNICAL DATA

Cutting equipment ........................................................ 21

FEDERAL EMISSION CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 22

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WHAT IS WHAT?

What is what on the power cutter?

1 Cylinder cover

2 Mufﬂer

3 Fuel tank

4 Start throttle lock

5 Choke

6 Throttle lockout

7 Stop switch

8 Cutting head

9 Cutting arm

10 Belt tensioner

11 Cutting blade

12 Throttle control

13 Combination spanner

14 Air ﬁlter cover

15 Blade guard/spray guard

16 Starter handle

17 Operator’s manual (EPA)

18 Adjustment handle for blade guard

19 Front handle

20 Starter

21 Decompression valve

22 Warning decal

23 Type plate

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English

SAFETY INSTRUCTIONS

Steps before using a new power cutter

• Please read the operator’s manual carefully.

• Check the cutting blade’s mounting, see the chapter ”Assembly”.

• Start the engine and check the idling setting, see instructions under the heading Maintenance. When the carburettor is set correctly the cutting blade should be still while idling. Setting of the idle speed is described in the Operator’s Manual. Set the correct speed according to these instructions. Do not use the power cutter if the idle speed is not adjusted correctly!

• Let your Husqvarna dealer regularly check the power cutter and make essential adjustments and repairs.

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.

You will ﬁnd the following labels on your power cutter:

WARNING! Use of products which cut, grind, drill, sand or shape material can generate

dust and vapors which may contain harmful chemicals. Know the nature of the material being worked on and wear appropriate dust mask or respirator protection.

WARNING! A power cutter is a dangerous tool if used carelessly or incorrectly and can

cause serious, even fatal injuries. It is extremely important that you read and understand the contents of this Operator’s Manual.

WARNING! The ignition system of this machine produces an electromagnetic ﬁeld

during operation. This ﬁeld may under some circumstances interfere with pacemakers. To reduce the risk of serious or fatal injury, we recommend persons with pacemakers to consult their physician and the pacemaker manufacturer before operating this machine.

WARNING! Some dust created by power sanding, sawing, grinding, drilling, and other

construction activities contains chemicals known (to the State of California) to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

Lead from lead-based paints.

Crystalline silica from bricks, cement and other masonry products.

Arsenic and chromium from chemicallytreated lumber.

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust makes that are specially designed to ﬁlter out microscopic material.

The Emissions Compliance Period referred to on the Emission Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal emissions requirements. Category C = 50 hours, B = 125 hours, and A = 300 hours.

Husqvarna Construction Products has a policy of continuous product development. Husqvarna reserves the right to modify the design and appearance of products without prior notice and without further obligation introduce design modiﬁcations.

All information and all data in the Operator’s Manual were applicable at the time the Operator’s Manual was sent to print.

Personal protective equipment

WARNING! 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.

• Protective helmet

• Hearing protection

• Protective goggles or a visor

• Breathing mask

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SAFETY INSTRUCTIONS

• Heavy-duty, ﬁrm grip gloves.

• Tight-ﬁtting, heavy-duty and comfortable clothing that permits full freedom of movement.

• Use leg-guards recommended for the material to be cut.

• Boots with steel toe-caps and non-slip sole

Stop switch

Use the stop switch to switch off the engine.

Mufﬂer

WARNING! The mufﬂer gets very hot in use and remains so for a short time afterwards.

Do not touch the mufﬂer if it is hot!

The mufﬂer is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user.

• 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.

WARNING! Never use a machine that has faulty safety equipment! Carry out the

inspection, maintenance and service routines listed in this section.

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 engine body, including the cutting equipment, is insulated from the handles by vibration damping units.

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!

IMPORTANT INFORMATION

For mufﬂers it is very important that you follow the instructions on checking, maintaining and servicing your machine. See instructions under the heading Checking, maintaining and servicing the machine’s safety equipment.

WARNING! The inside of the mufﬂer contain chemicals that may be carcinogenic. Avoid

contact with these elements in the event of a damaged mufﬂer.

Throttle lockout

The throttle trigger lock is designed to prevent accidental operation of the throttle. When the lock (A) is pressed in this releases the throttle (B).

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SAFETY INSTRUCTIONS

The trigger lock remains pressed in as long as the throttle is pressed. When the grip on the handle is released the throttle trigger and the throttle trigger lock both return to their original positions. This is controlled by two independent return spring systems. This means that the throttle trigger is automatically locked in the idle position.

Guard for the blade

WARNING! Always check that the blade guard is ﬁtted correctly before starting the

machine.

This guard is ﬁtted above the cutting blade and is designed to prevent parts of the blade or cutting fragments from being thrown towards the user.

Stop switch

Start the engine and make sure the engine stops when you move the stop switch to the stop setting.

Mufﬂer

Never use a machine that has a faulty mufﬂer.

Regularly check that the mufﬂer is securely attached to the machine.

Checking, maintaining and servicing the machine ′ s safety equipment

WARNING! 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.

Vibration damping system

Regularly check the vibration damping units for cracks or deformation.

Throttle lockout

• 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 control and throttle lockout move freely and that the return springs work properly.

Make sure the vibration damping units are securely attached to the engine unit and handle unit.

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SAFETY INSTRUCTIONS

• Start the power cutter and apply full throttle. Release the throttle control and check that the cutting blade stops and remains stationary. If the cutting blade rotates when the throttle is in the idle position you should check the carburettor’s idle adjustment. See instructions under the heading Maintenance.

Checking the blade guard

Never use a defective guard or a guard that has not been ﬁtted correctly.

WARNING! Always check that the guard is correctly ﬁtted before starting the machine.

Check that the cutting blade is ﬁtted correctly and does not show signs of damage. A damaged cutting blade can cause personal injury. See instructions under the heading Assembly.

Check that the guard is complete and without any cracks or deformations.

Transport and storage

Do not store or transport the power cutter with the cutting blade ﬁtted.

Store the power cutter in a lockable area so that it is out of reach of children and unauthorised persons.

All blades should be removed from the cutter after use and stored carefully. Store cutting blades in dry, frost free conditions.

Special care should be taken with abrasive discs. Abrasive discs must be stored on a ﬂat, level surface. If blades are supplied with a backing pad then a spacer should be used to keep them ﬂat. If an abrasive disc is stored in humid conditions, this can cause imbalance and result in injury.

Inspect new blades for transport or storage damage.

Fuel safety

(Refuelling/Fuel mixture/Storage.)

WARNING! Take care when handling fuel. Bear in mind the risk of ﬁre, explosion and

inhaling fumes.

• 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.

General safety precautions

• A power cutter is designed to cut hard materials, such as masonry. Observe the increased risk of kickback when cutting soft materials. See instructions under the heading How to avoid kickback.

• Do not use the power cutter until you have read the entire contents of this Operator’s Manual. All servicing, in addition to the points listed in the section ”Control, maintenance and service of the power cutter’s safety equipment”, should be carried out by trained service specialists.

• Never use the machine if you are tired, if you have drunk alcohol, or if you are taking medication that could affect your vision, your judgement or your co-ordination.

• 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 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 allow anyone else to use the machine without ﬁrst ensuring that they have understood the contents of the operator’s manual.

• Never use the machine indoors. Be aware of the dangers of inhaling the engine’s exhaust fumes.

• Never start the machine:

- If you have spilled fuel on it. Wipe off the spillage and allow remaining fuel to evaporate.

- 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.

- If the machine is leaking fuel. Check regularly for leaks from the fuel cap and fuel lines.

• Store and transport the machine and fuel so that there is

no risk of any leakage or fumes coming into contact with sparks or naked ﬂames, for example, from electrical machinery, electric motors, electrical relays/switches or boilers.

• Always store fuel in an approved container designed for

that 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.

• Always use a Husqvarna fuel container with an anti-spill

valve.

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