Jonsered Essential Maintenance for Your Chainsaw

Page 36

MAINTENANCE

Spark plug

The spark plug condition is influenced by:

Incorrect carburetor 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 0.020 inch (0.5 mm). The spark plug should be replaced after about a month in operation or earlier if necessary.

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.

Lubricating the bar tip sprocket

Lubricate the bar tip sprocket each time you refuel. Use the special grease gun and a good quality bearing grease.

Needle bearing lubrication

The clutch drum has a needle bearing on the output shaft. This needle bearing must be lubricated regularly.

When lubricating, remove the clutch cover by loosening the bar nut. Lay the saw on its side with the clutch drum upwards.

Lubrication involves engine oil dripping into the centre of the clutch drum as it rotates.

Cooling system

To keep the working temperature as low as possible the machine is equipped with a cooling system.

The cooling system consists of:

1Air intake on the starter.

2Air guide plate.

3Fins on the flywheel.

4Cooling fins on the cylinder.

5Cylinder cover (directs cold air over the cylinder).

Clean the cooling system with a brush once a week, more often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder.

Note! The cooling system on a chain saw with catalytic converter must be cleaned daily. This is particularly important on chain saws with catalytic converters, because the higher exhaust temperature requires efficient cooling of the engine and the catalytic converter unit.

36 – English

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Contents CS 2245S KEY to Symbols Symbols on the machineSymbols in the operator’s manual You will find the following labels on your chain sawContents Introduction Dear customerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawMachine′s safety equipment Always use common sensePersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherRight hand guard Stop switch Cutting equipmentVibration damping system MufflerCutting equipment designed to reduce kickback BarChain Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipment CS 2245S, CS 2250SFilling with chain oil Checking chain lubricationChain drive sprocket Needle bearing lubrication Checking wear on cutting equipmentAssembly Fitting the bar and chainWorking with the chain Assembly Fuel Handling FuelFuel safety FuelingTransport and storage Long-term storageStarting and Stopping Starting and stoppingStarting Warm engineStopping Basic safety rules Working TechniquesBefore use General working instructionsGeneral rules Basic cutting technique TermsTree felling technique LimbingLog is supported at one end. There is a high risk Safe distanceFelling direction Clearing the trunk and preparing your retreatDirectional cuts Felling cut How to avoid kickback What is kickback?Freeing a tree that has fallen badly Cutting the trunk into logs Maintenance Carburetor adjustmentGeneral Checking the inertia brake release Muffler Starter Replacing the starter cordTensioning the recoil spring Air filter Replacing the return and drive springsFitting the starter Spark plug Lubricating the bar tip sprocketNeedle bearing lubrication Cooling systemTurbo Air Cleaning centrifugal cleaning Temperature -5C 23F or colderWinter use Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical dataBar and chain combinations 050/1,3 mm058/1,5 mm Saw chain filing and file gauges Federal Emission Control Warranty Statement Repair or Replacement of Parts Repair orAmerican Standard Safety Precautions Safety precautions for chain saw usersKickback safety precautions Other safety precautions1151012-95