Husqvarna 440e Air Injection centrifugal cleaning, Winter use, Temperature -5C 23F or colder

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MAINTENANCE

”Air Injection” centrifugal cleaning

Centrifugal cleaning means the following: All air to the carburetor passes through the starter. Dirt and dust is pushed out by the cooling fan.

IMPORTANT! In order to maintain operation of the centrifugal cleaning system it must be regularly maintained. Clean the air intake to the starter, the ﬁns on the ﬂywheel, the space around the ﬂywheel, inlet pipe and carburetor compartment.

Winter use

Running problems can occur when using the machine in the cold and snowy conditions caused by:

•Too low engine temperature.

•Icing of the air ﬁlter and carburetor. Special measures are therefore often required:

•Partly mask the air inlet on the starter to increase the working temperature of the engine.

Temperature -5°C (23°F) or colder:

For running the machine in cold weather or powder snow, a special cover is available, which is mounted on the starter housing. This reduces the intake of cold air and prevents large amounts of snow from being sucked in.

CAUTION! If the special winterising kit has been ﬁtted or any measures have been taken to increase the temperature these changes must be reversed before the machine is used in normal temperature conditions. Otherwise there is a risk of overheating, resulting in severe damage to the engine.

IMPORTANT! Any maintenance other than that described in this manual must be carried out by your servicing dealer (retailer).

115 10 81-95 Rev.1 2008-01-08

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Contents 445 445e 450e Symbols on the machine KEY to SymbolsSymbols in the operator’s manual You will ﬁnd the following labels on your chain sawContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsAlways use common sense Machine′s safety equipmentPersonal protective equipment Chain brake and front hand guardGeneral Safety Precautions Chain catcher Throttle lockoutRight hand guard Stop switchVibration damping system MufﬂerGeneral rules Cutting equipmentCutting equipment designed to reduce kickback BarGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingIncreased if the depth gauge setting is General advice on adjusting depth gauge settingAdjustment of depth gauge setting Too largeBar and cause serious or even fatal injury Tensioning the chain445 445e, 450eFilling with chain oil Lubricating cutting equipmentChecking chain lubrication Needle bearing lubrication Chain drive sprocketChecking wear on cutting equipment Fitting the bar and chain Assembly445 445e, 450e115 10 81-95 Rev.1 Fuel Fuel HandlingFueling Fuel safetyTransport and storage Long-term storageStarting and stopping Starting and StoppingStarting Stopping Working Techniques Basic safety rulesBefore use General working instructionsGeneral rules Terms Basic cutting techniqueLimbing Tree felling techniqueLog is supported at one end. There is a high risk Safe distanceClearing the trunk and preparing your retreat Felling directionDirectional cuts Felling cut What is kickback? How to avoid kickbackFreeing a tree that has fallen badly Cutting the trunk into logs Carburetor adjustment MaintenanceGeneral Checking the inertia brake release Mufﬂer Replacing the starter cord StarterTensioning the recoil spring Replacing the return and drive springs Air ﬁlterFitting the starter Recoil spring aLubricating the bar tip sprocket Spark plugNeedle bearing lubrication Cooling systemTemperature -5C 23F or colder Air Injection centrifugal cleaningWinter use Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain ﬁling and ﬁle gauges Bar and chain combinations050/1,3 mm 058/1,5 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementSafety precautions for chain saw American Standard Safety PrecautionsOther safety precautions Kickback safety precautionsPage 1151081-95