Husqvarna 250PS Cooling system, Maintenance schedule, Cleaning of the shaft, Daily maintenance

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MAINTENANCE

Cooling system

To maintain as low an operating temperature as possible the engine is equipped with a cooling system.

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Maintenance schedule

Below follows some general maintenance instructions.

If you need further information please contact your service workshop.

The cooling system consits of:

1.An air intake on the starter unit.

2.Fins on the flywheel.

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Daily maintenance

1.

Clean the outside of the

 

machine.

2.

Check that the harness is

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3.Cooling fins on the cylinder.

4.Cylinder cover (leads cold air onto the cylinder).

Clean the cooling system using a brush at least once a week, in difficult conditions more often.

A dirty or blocked cooling system leads to engine overheating resulting in damage to the cylinder and piston.

Cleaning of the shaft

Clean the shaft every time it is used.

Dirt which penetrates into cracks in the shaft can conduct electricity and result in personal injury in the event of contact with an electric cable.

Adjustment of the ball joint

!WARNING!

The engine must not be running during adjustment.

The fixture for the cutting tool is provided with a ball joint so that it is easy to change the cutting angle during work.

It is important the joint round the ball joint is correctly adjusted.

Tighten the locking nut for a more rigid ball joint.

Loosen the locking nut for a more manoeuvrable ball joint.

 

undamaged.

3.

Make sure the throttle

 

trigger lock and the

 

throttle function correctly

 

from a safety point of

 

view.

4.

Check that the stop

 

switch functions.

5.

Check that the chain does

 

not move at idling speed.

6.

Clean the air filter.

 

Replace if necessary.

7.

Check hoses and hose

 

connections for damage

 

and wear.

8.

Check the cutting

 

equipment regarding

 

damage, wear and oil

 

leakage.

9.

Check that all nuts and

 

screws are tightened.

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22 – English

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Contents 250PS KEY to Symbols SymbolsContents Machines safety equipment Safety InstructionsPersonal protective equipment Silencer Vibration damp- ing systemCutting equip- ment Safety Instructions Guide bar Cutting equipment designed to minimise kickbackCutting equipment Saw chainSpecification of blade and chain General information on sharpening cutting teethGeneral advice on setting raker clearance Sharpening cutting toothCorrection of raker clearance Tensioning the saw chainChain lubrication CheckingChecking wear on cutting equipment Procedure if the lubrication does not functionSaw chain Chain drive wheel Fuel safety General safety instructionsStart General working instructions Basic safety precautionsTransport and storage Basic clearing techniques What is WHAT? What is what?Assembly AdapterFuel mix Fuel HandlingFuelling Fuel Handling Start and Stop Start and stopFitting the harness Start and StopConnection of the engine unit Removing the harnessMaintenance CarburettorAir filter Correctly adjusted carburettorCleaning/change MufflerAdjustment of the ball joint Maintenance scheduleCleaning of the shaft Daily maintenanceWeekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations Bar Chain´+HÆh¶6v¨ English English2001W14