Husqvarna K950 CHAIN manual Ignition system, Cooling system, Spark plug, Muffler

Page 20

MAINTENANCE

Ignition system

IMPORTANT INFORMATION!

Cooling system

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

This cut-off saw has a green coloured ignition system with integrated speed governor (order no. 506 02 73-04). The machine may only be used with such a green coloured ignition system to prevent the risk of over revving.

The cooling system consists of:

1.

An air intake on the

 

starter unit.

2.

Air flow guide.

3.

Cooling fins on the

5

Spark plug

The condition of the spark plug is affected by:

An incorrect carburetor setting.

An incorrect fuel mixture (too much oil).

A dirty air filter.

These factors cause deposits on the spark plug electrode that may result in malfunction or starting difficulties.

If the machine is low on power, difficult to start or runs poorly while idling always check the spark plug first. If the spark plug is dirty, clean it and at the same time check that the electrode gap is 0,5 mm (.020"). The spark plug should be changed after about one month of operation or earlier if necessary.

 

flywheel.

4.

Cooling fins on the

 

cylinder

5.

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 the engine overheating resulting in damage to the cylinder and piston.

4

3

2

1

Muffler

NOTE! Always use the recommended type of spark plug. (see chapter ”Technical data”)! An incorrect spark plug can damage the cylinder/piston.

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

Never use a saw with a clogged or defective muffler.

20 – English

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Contents Operator’s manual Symbols in the Operators Manual Symbol ExplanationSymbols on the cut-off saw Contents Safety Instructions MACHINE’S Safety EquipmentStop switch Personal Protective EquipmentMuffler Throttle lockGeneral Safety Instructions StorageFuel safety Basic safety precautionsGeneral Working Instructions Filling/Fuel mixture/StorageUsing Cutting Wet cuttingWorking speed Cutting techniqueEfficient cutting Kickback Care and storageWater cooling GeneralGlazing Cutting EquipmentDiamond chains What is WHAT? What is what on the machine?Assembly How to tension the chain How to change the chain and rimHow to change the clamping force of the bar Fuelling Fuel HandlingFuelmix Start and Stop Start and stopMaintenance Functioning, Final setting OperationFinal setting of the idling speed T CarburetorFuel filter Air filterStarter Replacing a broken or worn starter cordTensioning the recoil spring Replacing a broken recoil springIgnition system Cooling systemSpark plug MufflerMonthly maintenance Daily maintenanceWeekly maintenance Technical Data Cutting equipmentEU declaration of conformity Only applies to Europe 108 88