HUSQVARNA LB48V - Electric mower

LB48V - Electric mower HUSQVARNA - Free user manual and instructions

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Product type Self-propelled gas lawn mower
Brand HUSQVARNA
Model LB48V
Engine Briggs & Stratton, 190 cm³
Engine speed 2900 rpm
Spark plug Champion RJ19LM, gap 0.5 mm
Fuel tank capacity 1.2 L
Oil tank capacity 0.6 L
Recommended engine oil SAE 30
Cutting width 480 mm
Cutting height 5 positions, 25-70 mm
Cutting system 2-in-1 (mulching and side discharge)
Forward speed 5.4 km/h
Weight (empty tanks) 34 kg
Guaranteed sound power level 95 dB(A)
Sound pressure level 79 dB(A)
Vibration (left handle) 2.7 m/s²
Vibration (right handle) 4.7 m/s²
Blade tightening torque 45-60 Nm
Periodic maintenance Annual oil change or every 25 hours, air filter cleaning, spark plug replacement
Safety devices Engine brake handle, protective housing, muffler with spark arrestor
Warranty Conforms to EU directives (98/37, 2004/108, 2000/14)

Frequently Asked Questions - LB48V HUSQVARNA

How to start the LB48V lawn mower?
Make sure the spark plug wire is connected. Hold the engine brake lever against the left handle, then pull slowly on the starter handle until resistance, then pull firmly. Never wrap the rope around your hand.
What engine oil to use?
Use a high-quality 4-stroke oil, preferably SAE 30. Capacity is 0.6 liter. Check level before each use.
How to adjust the cutting height?
Stop the engine. Use the cutting height control on the right side: push lever to the right then forward to lower, or backward to raise. 5 positions from 25 to 70 mm.
How to replace the blade?
Disconnect the spark plug wire and drain the fuel tank. Remove the bolt, washer, and Belleville spring. Install the new blade with the cutting edges in the direction of rotation. Tighten the bolt to 45-60 Nm. Use gloves.
When to change the oil?
Change the oil once a year or every 25 hours of operation. Do it with a warm engine, empty the fuel tank, remove the drain plug under the mower, then fill with new oil.
How to clean the air filter?
Remove the air filter cover and filter. Tap it on a flat surface to clean. Never use solvent or compressed air. Replace if damaged.
What to do if the mower vibrates abnormally?
Stop the engine immediately and disconnect the spark plug. Check that the blade is not damaged, the shaft is not bent, and all bolts are tight. Replace defective parts.
Can I use the mower on a slope?
Never mow on a slope greater than 30 degrees. On slopes, mow perpendicular to the slope for stability. Be careful on slippery surfaces.
How to use side discharge?
Raise the side deflector and attach the side discharge chute to the shaft. Make sure it is secure. This function allows grass to be discharged to the side.
What is the sound guarantee of the LB48V?
The guaranteed sound power level is 95 dB(A) according to directive 2000/14/EC. The sound pressure level at the user\u0027s ear is 79 dB(A). Wear hearing protection if necessary.

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USER MANUAL LB48V HUSQVARNA

Please read the operator's manual carefully and make sure you understand the instructions before using the machine.

(Tanking/Oppbevaring)

HUSQVARNA LB48V - 1

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.

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

Watch out for thrown objects and ricochets.

Warning: rotating cutter. Keep hands and feet clear.

This product is in accordance with applicable EC directives.

Warning: rotating cutter. Keep hands and feet clear.

Never use the machine indoors or in spaces lacking proper ventilation. Exhaust fumes contain carbon monoxide, an odourless, poisonous and highly dangerous gas.

Risk of explosion

Always shut off the engine before refuelling.

Hot surface

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.

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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.

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1 Manufacturer
2 Model
3 Product number
4 Maintenance lever
5 Serial number
6 Type
7 Engine information
8 Weight

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. See the instructions under the heading fuel handling.

HUSQVARNA LB48V - Steps before using a new lawn mower - 1

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.

HUSQVARNA LB48V - Steps before using a new lawn mower - 2

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.

HUSQVARNA LB48V - Steps before using a new lawn mower - 3

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 74
Steps before using a new lawn mower 75

CONTENTS

Contents 76

WHAT IS WHAT?

What is what on the lawn mower? 77
What is what on the lawn mower? 78

SAFETY INSTRUCTIONS

Personal protection 79
Machine's safety equipment 79
General safety precautions 80
General working instructions 81

ASSEMBLY

Fitting the handlebar 83
Dismantling and assembling the cutter 83

FUEL HANDLING

Fuel 85

STARTING AND STOPPING

Starting and stopping 86

MAINTENANCE

Maintenance 87
Air filter 87
Spark plug 87
Muffler 87
Cutter 88
Changing the oil 88
Drive and gearbox 88
Cleaning cutting cover 89
Adjusting the clutch wire 89
Daily maintenance 89
Weekly maintenance 89
Monthly maintenance 89

TECHNICAL DATA

Technical data 90
EC-declaration of conformity 91

HUSQVARNA LB48V - TECHNICAL DATA - 1

What is what on the lawn mower? LC 48, LC 48V

1 Handle / handlebar
2 Drive
3 Starter handle
4 Grass catcher
5 Fuel tank
6 Cutting height control
7 Air filter
8 Cup spring
9 Cutter bolt
10 Cutter bracket

11 Cutter/cutting equipment
12 Spark plug
13 Cutting cover
14 Muffler
15 Water connector
16 Oil tank
17 Rear deflector
18 Engine brake handle
19 Operator's manual
20 Mulching plug

HUSQVARNA LB48V - What is what on the lawn mower? LC 48, LC 48V - 1

What is what on the lawn mower? LB 48, LB 48V

1 Handle / handlebar
2 Clutch lever
3 Starter handle
4 Fuel tank
5 Cutting height control
6 Air filter
7 Cup spring
8 Cutter bolt
9 Cutter bracket

10 Cutter/cutting equipment
11 Spark plug
12 Cutting cover
13 Muffler
14 Water connector
15 Oil tank
16 Engine brake handle
17 Operator's manual
18 Side ejection

Personal protection

HUSQVARNA LB48V - Personal protection - 1

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

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

HUSQVARNA LB48V - Personal protection - 2

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

HUSQVARNA LB48V - Personal protection - 3

  • Wear sturdy, non-slip boots or shoes.

HUSQVARNA LB48V - Personal protection - 4

HUSQVARNA LB48V - Personal protection - 5

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

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.

HUSQVARNA LB48V - Machine's safety equipment - 1

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

The protective cover is designed to reduce the risk of crush injuries and to catch a broken drive belt. Check that the protective cover is undamaged and that it is properly secured.

HUSQVARNA LB48V - Cutting cover and protective cover - 1

The cutting cover is designed to reduce vibration and to reduce the risk of cuts. Make sure the cutting cover is not damaged and that there are no visible defects such as cracks.

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.

HUSQVARNA LB48V - Engine brake handle - 1

  • Check that the engine brake works correctly and is undamaged.

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.

Apply full throttle and then release the brake handle. The engine brake should always be adjusted so that the engine stops within 3 seconds.

Muffler

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

HUSQVARNA LB48V - Muffler - 1

HUSQVARNA LB48V - Muffler - 2

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.

HUSQVARNA LB48V - Muffler - 3

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!

  • Never use a machine that has a faulty muffler.
  • Check that the muffler is securely attached and not damaged.

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. Never use blunt, cracked or damaged equipment.

HUSQVARNA LB48V - Cutting equipment - 1

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

HUSQVARNA LB48V - Cutting equipment - 2

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

HUSQVARNA LB48V - Cutting equipment - 3

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.
  • Keep in mind that the operator is responsible for accidents or hazards occurring to other people or their property.

HUSQVARNA LB48V - General safety precautions - 1

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.

HUSQVARNA LB48V - General safety precautions - 2

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. Before use:

HUSQVARNA LB48V - General safety precautions - 3

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 muffler is securely attached and not damaged.
4 Check that all parts of the lawn mower are tightened correctly and that they are not damaged or missing.
5 Check that the cutter is undamaged and not cracked. Replace the cutter if necessary.

Starting

HUSQVARNA LB48V - Starting - 1

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

  • 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.
  • Ensure that the working area is sufficiently illuminated to create a safe working environment.
  • Observe your surroundings and make sure that there is no risk of people or animals coming into contact with the cutting equipment. The operator is responsible for any unsafe situations or risks that people and property are exposed to.

HUSQVARNA LB48V - Starting - 2

  • 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.

Fuel safety

(Refuelling/Storage.)

HUSQVARNA LB48V - Fuel safety - 1

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 3m from the refuelling point before starting it.

HUSQVARNA LB48V - Fuel safety - 2

  • 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.

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.

General working instructions

HUSQVARNA LB48V - General working instructions - 1

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.

HUSQVARNA LB48V - Basic safety rules - 1

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

HUSQVARNA LB48V - Basic safety rules - 2

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

HUSQVARNA LB48V - Basic safety rules - 3

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

HUSQVARNA LB48V - Basic mowing technique - 1

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 30 degrees.
  • 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.
  • 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.

HUSQVARNA LB48V - General - 1

  • Never run with the machine when it is running. You should always walk with the lawn mower.

Pay particular attention when pulling the machine towards you during work.

Cutting height

HUSQVARNA LB48V - Cutting height - 1

Shut down the engine before changing the cutting height.

The cutting height can be adjusted in five different steps, mm.

HUSQVARNA LB48V - Cutting height - 2

Do not set the cutting height too low as there is a risk that the cutters might hit slopes with unevenness.

Adjusting the cutting height

HUSQVARNA LB48V - Adjusting the cutting height - 1

Shut down the engine before changing the cutting height.

Set the cutting height using the cutting height control on the right-hand side of the lawn mower.

  • To lower the cutting height move the lever to the right and then forward.

HUSQVARNA LB48V - Adjusting the cutting height - 2

  • To raise the cutting height move the lever to the right and then backward.

HUSQVARNA LB48V - Adjusting the cutting height - 3

Do not set the cutting height too low as there is a risk that the cutters might hit slopes with unevenness.

Fitting the handlebar

Take care not to damage the cables and wires when you fold up the handlebar.

Lift up the handlebar until the handlebar's upper tubular construction comes directly opposite to the handlebar's lower section. Tighten the knob correctly.

HUSQVARNA LB48V - Fitting the handlebar - 1

HUSQVARNA LB48V - Fitting the handlebar - 2

Dismantling and assembling the cutter

HUSQVARNA LB48V - Dismantling and assembling the cutter - 1

HUSQVARNA LB48V - Dismantling and assembling the cutter - 2

WARNING! Always wear heavy-duty gloves when servicing and maintaining the cutting equipment. The cutters are very sharp and cuts can occur very easily.

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

HUSQVARNA LB48V - Dismantling and assembling the cutter - 3

Always empty the fuel tank before you place the lawn mower on its side.

Dismantling

Unscrew the bolt holding the cutter.

HUSQVARNA LB48V - Dismantling - 1

  • Remove bolt, washer and cup spring.
  • Remove the cutter.

Assembly

  • Position the cutter so that the cutting edge faces in the direction of rotation.
  • Fit the cup spring, make sure it centres correctly on the engine shaft.

HUSQVARNA LB48V - Assembly - 1

  • Fit the washer and tighten the bolt correctly. The bolt should be tightened with a torque of 45-60 Nm.

Assembly of the catcher

HUSQVARNA LB48V - Assembly of the catcher - 1

HUSQVARNA LB48V - Assembly of the catcher - 2

HUSQVARNA LB48V - Assembly of the catcher - 3

HUSQVARNA LB48V - Assembly of the catcher - 4

  • Lift the hind shield and suspend the grass container.

HUSQVARNA LB48V - Assembly of the catcher - 5

Side ejection

LB48, LB48V, can be used with side ejection by fitting the side ejector on the cutting cover.

HUSQVARNA LB48V - Side ejection - 1

Lift up the side cover and place the side ejector on the shaft.

HUSQVARNA LB48V - Side ejection - 2

Mulching function

LB48, LB48V, is a lawn mower with mulching function.

LC48, LC48V, can be used with mulching function in the following way:

Lift up the back shield and remove the container.

HUSQVARNA LB48V - Mulching function - 1

Insert the mulching plug into the collector channel.

HUSQVARNA LB48V - Mulching function - 2

HUSQVARNA LB48V - Mulching function - 3

Close the shield and ensure that it is locked with the mulching plug.

HUSQVARNA LB48V - Mulching function - 4

Fuel

HUSQVARNA LB48V - Fuel - 1

WARNING! Always ensure there is adequate ventilation when handling fuel.

Petrol

  • Use good quality unleaded petrol. Leaded petrol can be used if unleaded petrol is not available.
    Fuel should be at least 77 octane.
    If the machine is not used for some time the fuel tank should be emptied and cleaned.

Engine oil

Check the oil level before starting the lawn mower. A too low oil level can cause serious damage to the engine.

  • For the best result and function use HUSQVARNA four-stroke oil.
  • If HUSQVARNA four-stroke oil is not available, you may use another four-stroke oil of good quality. Contact your dealer when selecting oil. In general SAE 30 is recommended.
  • Never use oil intended for two-stroke engines.

Check the oil level before starting the lawn mower. A too low oil level can cause serious damage to the engine.

Oil level

Unscrew the oil filler cap and check the oil level on the dipstick fitted to the cover.

HUSQVARNA LB48V - Oil level - 1

The oil filler cap must be completely screwed down to give a correct picture of the oil level.

If the oil level is low, fill using engine oil up to the upper level on the dipstick.

HUSQVARNA LB48V - Oil level - 2

Only use recommended engine oil. See the Technical data section.

Fuelling

HUSQVARNA LB48V - Fuelling - 1

WARNING! Taking the following precautions, will lessen the risk of fire:

Do not smoke or place hot objects near fuel.

Always shut off the engine 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 before starting.

Do not fill too much petrol. Leave about 35mm under the filler cap so that the fuel can expand.

Clean around the fuel cap. Clean the fuel and oil tank regularly. The fuel filter should be changed at least once a year. Contamination in the tanks causes malfunction.

Always move the machine about 3 metres from the refuelling position before starting.

HUSQVARNA LB48V - Fuelling - 2

Starting and stopping

HUSQVARNA LB48V - Starting and stopping - 1

WARNING! Note the following before starting:

Do not start a lawn mower unless the cutter and all covers are fitted correctly. Otherwise the cutter could come loose and cause personal injuries.

Always move the machine away from the refuelling area before starting.

Place the machine on a flat surface. Ensure the cutting attachment cannot come into contact with any object.

Keep people and animals well away from the working area.

Starting

Ensure the ignition lead sits correctly on the spark plug.

Pull the engine brake handle against the upper handlebar with your left hand.

HUSQVARNA LB48V - Starting - 1

Grip the starter handle, slowly pull out the cord with your right hand until you feel some resistance (the starter paws grip), now quickly and powerfully pull the cord. Never twist the starter cord around your hand.

HUSQVARNA LB48V - Starting - 2

CAUTION! 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.

HUSQVARNA LB48V - Starting - 3

Drive

The machines are self-propelling with backwheel drive. To use the drive on the wheel pull the clutch lever towards you.

HUSQVARNA LB48V - Drive - 1

The drive can be gradually controlled.

HUSQVARNA LB48V - Drive - 2

Stopping

Stop the engine by releasing the engine brake handle.

HUSQVARNA LB48V - Stopping - 1

Emptying the grass collector, LC48, LC48V

  • Lift up the back shield and remove the container.

HUSQVARNA LB48V - Emptying the grass collector, LC48, LC48V - 1

  • Turn the container upside down to empty it of all the grass.

HUSQVARNA LB48V - Emptying the grass collector, LC48, LC48V - 2

Maintenance

HUSQVARNA LB48V - Maintenance - 1

HUSQVARNA LB48V - Maintenance - 2

HUSQVARNA LB48V - Maintenance - 3

HUSQVARNA LB48V - Maintenance - 4

WARNING! Make sure the cutting attachment has stopped before cleaning, carrying out repairs or an inspection. Disconnect the HT lead from the spark plug.

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

Air filter

The air filter must be regularly cleaned to remove dust and dirt in order to avoid:

  • Carburettor malfunctions
    Starting problems
  • Loss of engine power
  • Unnecessary wear to engine parts.
  • Excessive fuel consumption.

An air filter that has been in use for a long time cannot be cleaned completely. The filter must therefore be replaced with a new one at regular intervals. A damaged air filter must always be replaced.

Cleaning the air filter

Remove the air filter cover.

HUSQVARNA LB48V - Cleaning the air filter - 1

Remove the air filter and check that it is undamaged. Replace with a new air filter if you believe it to be defective.

HUSQVARNA LB48V - Cleaning the air filter - 2

Clean the filter by knocking the filter against a flat surface. Never use solvent with petroleum, for example, kerosene, or compressed air to clean the filter.

When reassembling, make sure that the filter completely seals against the filter holder.

Spark plug

HUSQVARNA LB48V - Spark plug - 1

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!

If the machine is low on power, difficult to start or runs poorly at idle speed: always check the spark plug first before taking any further action. If the spark plug is dirty, clean it and check that the electrode gap is 0.5mm . The spark plug should be replaced after about a month in operation or earlier if necessary.

HUSQVARNA LB48V - Spark plug - 2

CAUTION! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/cylinder.

Muffler

The muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause fire if directed against dry and combustible material.

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

HUSQVARNA LB48V - Muffler - 1

Never use a machine that has a faulty muffler.

HUSQVARNA LB48V - Muffler - 2

Cutter

HUSQVARNA LB48V - Cutter - 1

HUSQVARNA LB48V - Cutter - 2

HUSQVARNA LB48V - Cutter - 3

WARNING! Always wear heavy-duty gloves when repairing the cutting attachment. The blades are very sharp and can easily cause cuts.

It is important to have a sharp and correctly balanced cutter. Loosen the bolt holding the cutter and leave the cutter at a service workshop at least once a year for grinding and balancing. An appropriate time to do this is after the mowing season has finished.

HUSQVARNA LB48V - Cutter - 4

If the cutter or cutter bracket need to be changed you must replace the cutter bolt, washer and cup spring at the same time.

The bolt should be tightened with a torque of 45-60 Nm when you fit the cutter again. See instructions under the heading Assembly.

If the cutter hits foreign objects such as stones, roots or the like the cutter will slip against the cutter bracket. This may mean that the contact surface of the cutter bracket appears slightly worn, which is completely normal. This is a safety device, which reduces the risk of the engine shaft becoming bent.

Changing the oil

The engine oil should be changed each year and every 25 working hours.

When changing the oil proceed as follows:

  • Empty the fuel tank by running the machine until the tank is empty.
  • Disconnect the HT lead from the spark plug.
    Unscrew the bolt holding the cutter.

HUSQVARNA LB48V - Changing the oil - 1

  • Loosen the bolts holding the protective hood and then lift off the hood.

HUSQVARNA LB48V - Changing the oil - 2

Unscrew the oil filler cap.

HUSQVARNA LB48V - Changing the oil - 3

  • The oil can be drained from the underside by loosening the oil plug. Do not forget to refit the oil plug before filling with oil again.
    Ask where you can dispose of surplus engine oil at your local petrol station.
  • Fill with new engine oil of a good quality. See the Technical data section.
  • Check the oil level with the dipstick on the oil filler cap.
  • The oil filler cap must be completely screwed down to give a correct picture of the oil level. If the oil level is low, fill using engine oil up to the upper level on the dipstick.

HUSQVARNA LB48V - Changing the oil - 4

  • Screw on the oil filler cap.

Drive and gearbox

HUSQVARNA LB48V - Drive and gearbox - 1

LC 48V

  • Lift up the back shield and remove the container.
  • Remove the collector cover's 4 screws and lift off the cover.

HUSQVARNA LB48V - LC 48V - 1

LC 48V, LB 48V

  • Ensure the wheels and wheel axles are clean and free from leaves, grass, etc. It is also important to keep clean around the drive gearbox.
  • Remove the protective cover by unscrewing the screws.

HUSQVARNA LB48V - LC 48V, LB 48V - 1

Now guide the protective cover out and upwards.

MAINTENANCE

  • Clean the gearbox with a brush. Also check that the drive belt and belt pulley are undamaged, for example, no cracks.

HUSQVARNA LB48V - MAINTENANCE - 1

Cleaning cutting cover

  • Connect a water hose to the cutting cover connection.

HUSQVARNA LB48V - Cleaning cutting cover - 1

Scrape off the remainder with the scrape supplied with the machine.

HUSQVARNA LB48V - Cleaning cutting cover - 2

Adjusting the clutch wire

The clutch wire is adjusted by turning the adjustment screw.

HUSQVARNA LB48V - Adjusting the clutch wire - 1

Below you will find some general maintenance instructions.

Daily maintenance

HUSQVARNA LB48V - Daily maintenance - 1

HUSQVARNA LB48V - Daily maintenance - 2

HUSQVARNA LB48V - Daily maintenance - 3

1 Check that the engine brake handle works safely.
2 Brush leaves, grass and the like off of the lawn mower.

3 Check the oil level.
4 Clean the air intake on the starter. Check the starter and starter cord.
5 Check that nuts and screws are tight.
6 Check the cutting attachment. Never use blades that are dull, cracked or damaged.

Weekly maintenance

HUSQVARNA LB48V - Weekly maintenance - 1
1

HUSQVARNA LB48V - Weekly maintenance - 2
2

HUSQVARNA LB48V - Weekly maintenance - 3
3

1 Clean the air filter. Replace if necessary.
2 Clean the spark plug. Check that the electrode gap is 0.51 mm.
3 Clean the cooling fins on the cylinder.

Monthly maintenance

HUSQVARNA LB48V - Monthly maintenance - 1
1

HUSQVARNA LB48V - Monthly maintenance - 2
2

HUSQVARNA LB48V - Monthly maintenance - 3
3

HUSQVARNA LB48V - Monthly maintenance - 4
4

1 Check that drive belt is not damaged and is not visibly defective.
2 Clean the gearbox.
3 Check the fuel filter and the fuel hose. Replace if necessary.
4 Clean the inside of the fuel tank.

TECHNICAL DATA

Technical data

LC 48LC 48VLB 48LB 48V
EngineBriggs & StrattonBriggs & StrattonBriggs & StrattonBriggs & Stratton
Cylinder displacement, cm3190190190190
Speed, rpm2900290029002900
Ignition system
Spark plugChampion RJ19LMChampion RJ19LMChampion RJ19LMChampion RJ19LM
Electrode gap, mm0,50,50,50,5
Fuel and lubrication system
Fuel tank capacity, litre1,21,21,21,2
Oil tank capacity, litre0,60,60,60,6
Engine oilSAE 30SAE 30SAE 30SAE 30
Weight
Lawn mower with empty tanks, kg38383434
Sound power level
(see note 2)
Noise pressure level at the operators ear, dB(A)81817979
Noise emissions
(see note 1)
Sound power level, measured dB(A)95959393
Sound power level, guaranteed LWA dB(A)96969595
Vibration levels
(see note 2)
Handle left, m/s26,06,02,72,7
Handle right, m/s25,05,04,74,7
Cutting
Cutting system3 in 13 in 12 in 12 in 1
The cutting height can be adjusted in five different steps, mm.25-7025-7025-7025-70
Cutting width, mm480480480480
CutterFixedFixedFixedFixed
Drive
Speed, km/h-5,4-5,4

Note 1: Noise emissions in the environment measured as sound power (L_WA) in conformity with EC directive 2000/14/EC.
Rem. 2: Vibrations and sound pressure measured according to EN 836:1997/A2:2001

EC-declaration of conformity

(Appplies to Europe only)

Husqvarna AB, SE-561 82 Huskvarna, Sverige, tel: +46-36-146500, declares under sole responsibility that the lawn mowers Husqvarna LC 48, LC 48V, LB 48 and LB48 V from the serial numbers 081500001 and onwards comply with the requirements of the COUNCIL'S DIRECTIVE:

  • of June 22, 1998 "relating to machinery" 98/37/EC.
  • of December 15, 2004 "relating to electromagnetic compatibility" 2004/108/EC.
  • of May 8, 2000 "relating to the noise emissions in the environment" 2000/14/EC.

For information relating to noise emissions, see the chapter Technical data.

Registered body 0404, SMP Svensk Maskinprovning AB, Fyrisborgsgatan 3, SE-754 50 Uppsala, Sweden, has issued reports regarding the assessment of conformity according to annex VI of the COUNCIL'S DIRECTIVE of May 8, 2000 "relating to the noise emissions in the environment" 2000/14/EC.

The certificates have the numbers:

01/901/071 - Husqvarna LC 48, LC 48V

01/901/072 - Husqvarna LB 48, LB 48V

Huskvarna 13 October 2008

HUSQVARNA LB48V - (Appplies to Europe only) - 1

Bengt Ahlund, Development manager

Attention: projections et ricochets.

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Product information

Brand : HUSQVARNA

Model : LB48V

Category : Electric mower