Husqvarna 236E Maintenance, Muffler, Air filter, Spark plug, Checking the inertia brake release

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MAINTENANCE

Move the front hand guard forwards and back to make sure it moves freely and that it is securely anchored to the clutch cover. (47)

Checking the inertia brake release

Place the chain saw, with the engine switched off, on a stump or other stable surface. Release the front handle and let the saw fall by its own weight, rotating around the rear handle towards the stump.

When the bar hits the stump the brake should be applied. (48)

Checking the right-hand brake trigger (240e TrioBrake)

Check that the right hand guard is not damaged and that there are no visible defects, such as cracks.

Push the trigger up and forwards to check that it moves freely and is securely hinged to the clutch cover.

Never carry or hang the saw by the trigger! This could damage the mechanism and disable the chain brake. (49)

Checking the brake trigger

Place the chain saw on firm ground and start it. Make sure the chain does not touch the ground or any other object. See the instructions under the heading Start and stop. Grasp the chain saw firmly, wrapping your fingers and thumbs around the handles.

Apply full throttle and activate the chain brake by tilting your left wrist forward onto the front hand guard. Do not let go of the front handle. The chain should stop immediately.

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.

Start the chain saw and apply full throttle. Release the throttle control and check that the chain stops and remains stationary. If the chain rotates when the throttle control is in the idle position you should check the carburettor idle adjustment.

Chain catcher

Check that the chain catcher is not damaged and is firmly attached to the body of the chain saw.

Right hand guard

Check that the right hand guard is not damaged and that there are no visible defects, such as cracks.

Vibration damping system

Regularly check the vibration damping units for cracks or deformation.

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

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.

Note: The spark arrestor screen (A) on this machine is serviceable. (50) The mesh must be replaced if it is damaged. If the mesh is blocked the machine will overheat and this will cause damage to the cylinder and piston. Never use a machine with a muffler that is in poor condition. Never use a muffler if the spark arrestor mesh is missing or defective.

For normal homeowner use, the muffler and spark arresting screen will not require replacement. After 75 hours of use, we recommend that your muffler be replaced by your authorized Husqvarna service dealer.

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.

Remove the air filter (3) after taking off the cylinder cover, screw (1) and filter cover (2). When refitting make sure that the air filter seals tightly against the filter

holder. Clean the filter by brushing or shaking it. (51) The filter can be cleaned more thoroughly by washing it in water and detergent.

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.

A HUSQVARNA chain saw can be equipped with different types of air filter according to working conditions, weather, season, etc. Contact your dealer for advice.

Spark plug

The spark plug condition is influenced by:

Incorrect carburettor adjustment.

An incorrect fuel mixture (too much or incorrect type of oil).

A dirty air filter.

These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difficulties.

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 0.5 mm. The spark plug should be replaced after about a month in operation or earlier if necessary. (52)

Note! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/cylinder. Check that the spark plug is fitted with a suppressor.

20 – English

1153140-26 Rev. 2 2010-02-11

 

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Contents TrioBrake Bedienungsanweisung240e TrioBrake RevOFF Half Full Path 49 240e TrioBrake Symbols on the machine IntroductionDear Customer English RevIntroduction / Contents General Safety Precautions Before using a new chain sawAlways use common sense Please read this manual carefully Refer to figures on pChain brake and front hand guard Machine′s safety equipmentPersonal protective equipment Cutting equipment Cutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge settingGeneral rules Tensioning the chain Lubricating cutting equipmentGeneral Safety Precautions / Assembly Fitting the bar and chainFitting a spike bumper Chain drive sprocketFuel safety Fuel HandlingFuel FuellingFuel Handling / Starting and Stopping Starting and stoppingBasic safety rules Jam. Always stop the engine before cleaningWorking Techniques Before useBasic cutting technique Tree felling techniqueFreeing a tree that has fallen badly Working Techniques / Maintenance How to avoid kickbackCarburettor adjustment GeneralMaintenance MufflerAir filter Spark plugMaintenance schedule Technical Data Technical dataBar and chain combinations EC-declaration of conformityApplies to Europe only 325 10T Husqvarna H30 Husqvarna H36