Husqvarna M48 Pro, M53 S User Manual

Operator ′ s manual

M48 M53 S

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:

• Approved hearing protection

Never use the machine if persons, especially children or pets, are in the immediate vicinity.

Watch out for thrown objects and ricochets.

Other symbols/decals on the machine refer to special certiﬁcation requirements for certain markets.

Always wear protective gloves.

Regular cleaning is required.

Visual check.

The ignition lead should always be removed from the spark plug before repair, cleaning or maintenance work.

Switch off the engine by releasing the engine brake handle before carrying out any checks or maintenance.

Warning: rotating cutter. Keep hands and feet clear.

This product is in accordance with applicable EC directives.

Noise emission to the environment according to the European Community’s Directive. The machine’s emission is speciﬁed in chapter Technical data and on label.

The engine is stopped.

Drive position

Steps before using a new lawn mower

• Please read the operator’s manual carefully.

• Check that the cutting equipment is correctly ﬁtted and adjusted. See instructions under the heading Assembly.

• Fill with fuel and oil in the engine. A container with sufﬁcient oil quantity is supplied with the machine. See the instructions under the heading fuel handling.

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.

WARNING! A lawn mower 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.

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WARNING! Long-term inhalation of the engine's exhaust fumes can represent a

health hazard.

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.

Contents

KEY TO SYMBOLS

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

Steps before using a new lawn mower ........................ 2

CONTENTS

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

SAFETY INSTRUCTIONS

Personal protection ...................................................... 4

Machine ′ s safety equipment ........................................ 4

Checking, maintaining and servicing the machine ′ s

safety equipment .......................................................... 5

General safety precautions .......................................... 6

General working instructions ....................................... 8

WHAT IS WHAT?

What is what on the lawn mower? M48 ........................ 10

What is what on the lawn mower? M53 S..................... 11

ASSEMBLY

Fitting the handlebar .................................................... 12

Dismantling and assembling the cutter ........................ 12

FUEL HANDLING

Fuel .............................................................................. 13

STARTING AND STOPPING

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

MAINTENANCE

Maintenance ................................................................ 15

Air ﬁlter ......................................................................... 15

Spark plug .................................................................... 16

Mufﬂer .......................................................................... 16

Cutter ........................................................................... 16

Changing the oil ........................................................... 16

Lubrication of the cutting height adjustment ................ 17

Drive and gearbox ........................................................ 17

Daily maintenance ....................................................... 18

Weekly maintenance .................................................... 18

Monthly maintenance ................................................... 18

TECHNICAL DATA

Technical data .............................................................. 19

EC-declaration of conformity ........................................ 19

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SAFETY INSTRUCTIONS

Personal protection

WARNING! You must use personal protection whenever you use the machine.

• Hearing protection

• Gloves must be worn when required, for example when ﬁtting, inspecting or cleaning cutting attachments.

• Always wear heavy, long pants. Do not wear shorts, sandals or go barefoot.

• Engine brake handle

• Vibration damping system

• Mufﬂer

• Cutting equipment

• Wear sturdy, non-slip boots or shoes.

Generally clothes should be close-ﬁtting without restricting your freedom of movement.

Machine ′′

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.

′′

s safety equipment

WARNING! Never use a machine that has faulty safety equipment! Carry out the inspection, maintenance and service routines listed in this section.

Cutting cover and protective cover

On lawn mower M53 S there is a protective cover mounted over the drive’s gearbox.

The protective cover is designed to reduce the risk of crush injuries and to catch a broken drive belt.

The cutting cover is designed to reduce vibration and to reduce the risk of cuts.

Engine brake handle

The engine brake is designed to stop the engine. When the grip on the engine brake handle is released the engine should stop.

• Cutting cover and protective cover

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On lawn mower M53 S the engine brake handle should also disengage the drive.

SAFETY INSTRUCTIONS

Vibration damping system

Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier.

The handlebar system's steel tube and the cutting cover are designed to minimise the vibrations from the engine.

The machine ′ s vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machine ′ s handle unit.

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. 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.

Mufﬂer

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

Checking, maintaining and servicing the machine ′′

WARNING! All servicing and repair work on the machine requires special training. This is

especially true of the machine 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.

Checking the cutting cover and protective cover

Make sure the cutting cover is not damaged and that there are no visible defects such as cracks.

Check that the protective cover is undamaged and that it is properly secured.

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s safety equipment

′′

s safety

′′

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!

In areas with a hot, dry climate there is a high risk of ﬁres. These areas are sometimes controlled by legislation and requirements that among other things the mufﬂer must be equipped with an approved type of spark arrestor mesh.

For mufﬂers it is very important that you follow the instructions on checking, maintaining and servicing your machine.

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!

Checking the brake trigger

Place the lawn mower on ﬁrm, ﬂat surface and start it. Make sure that the cutter cannot come into contact with the ground or other objects. See the instructions under the heading Start and stop.

Apply full throttle and then release the brake handle.

The engine brake should always be adjusted so that the engine stops within 3 seconds.

On lawn mower M53 S the engine brake handle should also disengage the drive. Start the machine and engage the drive by moving the clutch lever towards you.

Apply full throttle and then release the brake handle. The engine should stop and the drive should disengage.

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SAFETY INSTRUCTIONS

Vibration damping system

The handlebar system's steel tube and the cutting cover are designed to minimise the vibrations from the engine. Make sure the cutting cover is not damaged and that there are no visible defects such as cracks.

Mufﬂer

Never use a machine that has a faulty mufﬂer.

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

Cutting equipment

This section describes how to choose and maintain your cutting equipment in order to:

• Reduces machine vibration.

• Obtain maximum cutting performance.

• Extend the life of cutting equipment.

Make sure the cutter does not hit foreign objects such as stones, roots or the like. This can make the cutter dull and bend the engine shaft. Always ensure the cutter is well ground and balanced correctly. See also instructions under the heading Maintenance.

Check the cutting attachment for damage or cracks. A damaged cutting attachment should always be replaced.

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

• A lawn mower is only designed to mow lawns. The only accessories you can use with this engine unit are the cutters we recommend in the Technical data chapter.

• 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.

WARNING! Running an engine in a conﬁned or badly ventilated area can result in death

due to asphyxiation or carbon monoxide poisoning.

• You must use personal protection whenever you use the machine. See the instructions under the heading Personal protection.

• Never use a machine that has been modiﬁed in any way from its original speciﬁcation.

Never use any accessories other than those recommended in this manual. See instructions under the headings Cutting equipment and Technical data.

WARNING! A faulty cutting attachment may increase the risk of accidents.

Also check that the cutter bolt is undamaged and that the engine shaft is not bent.

The washer and cup spring should always be replaced when changing the cutter or cutter bracket.

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• 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.

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