Ryobi M48 Pro, M53 S Pro User Manual

Operator ′ s manual

M48 Pro M53 S Pro

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

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 Pro.................. 10

What is what on the lawn mower? M53 S Pro .............. 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 ................................................................ 16

Air ﬁlter ......................................................................... 16

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

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

Cutter ........................................................................... 17

Changing the oil ........................................................... 17

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

Drive and gearbox ........................................................ 18

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

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

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

TECHNICAL DATA

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

EC-declaration of conformity ........................................ 20

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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 Pro 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 Pro 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.

This model also has a vibration damper ﬁtted on the handlebar unit to further reduce vibrations.

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.

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

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Mufﬂer

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

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 Pro 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

Check regularly that the vibration damping element is free from cracks.

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.

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

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.

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.

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

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.

• 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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SAFETY INSTRUCTIONS

Before use:

1 Check that the engine brake works correctly and is

undamaged. See the instructions under the heading Checking the braking effect.

2 Check that all handles and controls are undamaged and

free of oil.

3 Check that the anti vibration system works and is not

damaged.

4 Check that the mufﬂer is securely attached and not

damaged.

5 Check that all parts of the lawn mower are tightened

correctly and that they are not damaged or missing.

6 Check that the cutter is undamaged and not cracked.

Replace the cutter if necessary.

7 Clean the air ﬁlter. Replace if necessary.

Starting

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

health hazard.

Fuel safety

(Refuelling/Storage.)

WARNING! Fuel and fuel vapour are highly inﬂammable. Take care when handling fuel

and engine oil. Bear in mind the risk of ﬁre, explosion and inhaling fumes.

• Never refuel the machine while the engine is running.

• Always ensure there is adequate ventilation when refuelling and ﬁlling oil.

• Move the machine at least 3 m from the refuelling point before starting it.

• Never start the machine:

1 If you have spilt fuel or engine oil on the machine. Wipe

off the spill and allow the remaining fuel to evaporate.

2 If you spill fuel or engine oil on yourself or your clothes.

Change your clothes.

3 If the machine is leaking fuel. Check regularly for leaks

from the fuel cap and fuel lines.

• Never start a lawn mower unless the cutters and all covers are ﬁtted correctly.

• Never start the machine indoors. Exhaust fumes can be dangerous if inhaled.

• Observe your surroundings and make sure that there is no risk of people or animals coming into contact with the cutting equipment.

• 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.

• Never twist the starter cord around your hand.

See the instructions under the heading Start and stop.

Transport and storage

• The fuel and engine oil tanks should be emptied before longer periods of storage or when transporting the lawn mower. Ask where you can dispose of surplus fuel and engine oil at your local petrol station.

• Always store the lawn mower and fuel so that any leakage or vapours do not risk coming into contact with sparks or naked ﬂames. For example, electrical machines, electric motors, relays/switches, boilers, or the like.

• Always store fuel in an approved container designed for that purpose.

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SAFETY INSTRUCTIONS

General working instructions

WARNING! This section describes basic safety precautions for working with the lawn

mower. This information is never a substitute for professional skills and experience. If you get into a situation where you feel unsure about how to progress, stop and seek expert advice. Contact your dealer, service agent or an experienced lawn mower user. Avoid all usage which you consider to be beyond your capability

Basic safety rules

• Look around you:

- To ensure that people, animals or other things cannot affect your control of the machine.

- To make sure that none of the above might come into contact with the cutting equipment.

• Branches, twigs, stones, etc. should be removed from the lawn before you start to mow. 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.

• Never lift up the lawn mower or carry it around when the engine is running. If you must lift the lawn mower, ﬁrst switch off the engine and disconnect the ignition lead from the spark plug.

• The brake handle must never be permanently anchored in handle when the machine is running.

Follow the instructions above, but do not use a lawn mower in a situation where you cannot call for help in case of an accident.

Basic mowing technique

WARNING! Make sure that your hands and feet do not come near the cutting

attachment when the engine is running.

General

• Mowing slopes can be dangerous. Do not use the lawn mower on very steep slopes.

• The lawn mower should not be used on inclines greater than 15 degrees. Inclines that are too great can result in fuel leakage

• On sloping ground you should work along the slope. It is much easier to work along a slope than it is to work up and down it.

• Branches, twigs, stones, etc. should be removed from the lawn before you start to mow.

• Do not use the machine in bad weather, such as dense fog, heavy rain, strong wind, intense cold, etc. Working in bad weather is tiring and often brings added risks, such as icy ground.

• Make sure you can move and stand safely. Check the area around you for possible obstacles (roots, rocks, branches, ditches, etc.) in case you have to move suddenly. Take great care when working on sloping ground.

• The lawn mower should not be used on inclines greater than 15 degrees. Inclines that are too great can result in fuel leakage

• The engine should be switched off when moving over ground that is not to be mowed. For example, gravel paths, stone, shingle, asphalt, etc.

• Never lift up the lawn mower or carry it around when the engine is running. If you must lift the lawn mower, ﬁrst switch off the engine and disconnect the ignition lead from the spark plug.

• 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. A bent axle gives imbalance and heavy vibration, which results in a great risk of the cutter becoming loose.

If any foreign object is hit or if vibrations occur stop the machine immediately. Disconnect the HT lead from the spark plug. Check that the machine is not damaged. Repair any damage.

• Never mow more than 1/3 of the length of the grass. This especially applies during dry periods. Mow ﬁrst with the cutting height set high. Then check the result and lower to an appropriate height. If the grass is really long, drive slowly and mow twice if necessary.

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