Husqvarna M53 S, M48 Pro manual Spark plug, Muffler, Cutter, Changing the oil

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MAINTENANCE

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

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 0.76 mm. The spark plug should be replaced after about a month in operation or earlier if necessary.

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.

Never use a machine that has a faulty muffler.

Cutter

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.

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 oil filler cap.

16 – English

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Contents M48 M53 S EnglishKey to symbols KEY to SymbolsSteps before using a new lawn mower Contents Safety Instructions Machine′s safety equipmentPersonal protection Cutting cover and protective coverVibration damping system MufflerChecking the cutting cover and protective cover Checking the brake triggerCutting equipment General safety precautionsIncrease the risk of accidents Fuel safety StartingTransport and storage Before useBasic safety rules General working instructionsBasic mowing technique GeneralAdjusting the cutting height Cutting heightWhat is WHAT? What is what on the lawn mower? M48What is what on the lawn mower? M53 S Assembly AssemblyFitting the handlebar Dismantling and assembling the cutterFuel Handling FuelPetrol Engine oilStarting and Stopping Starting and stoppingMaintenance MaintenanceCleaning the air filter Air filterSpark plug MufflerCutter Changing the oilDrive and gearbox Lubrication of the cutting height adjustmentM48 M53 S Daily maintenance Weekly maintenanceMonthly maintenance Below you will find some general maintenance instructionsTechnical Data Technical dataEC-declaration of conformity Applies to Europe only1140250-26 ´z+H9¶6P¨ ´z+H9¶6P¨