Husqvarna 435e Tensioning the chain, Bar and cause serious or even fatal injury, 445e, 450e

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GENERAL SAFETY PRECAUTIONS

Tensioning the chain

WARNING! A slack chain may jump off

! the bar and cause serious or even fatal injury.

The more you use a chain the longer it becomes. It is therefore important to adjust the chain regularly to take up the slack.

Check the chain tension every time you refuel. NOTE! A new chain has a running-in period during which you should check the tension more frequently.

Tension the chain as tightly as possible, but not so tight that you cannot pull it round freely by hand.

445

•Loosen the bar nut that holds the clutch cover and chain brake. Use the combination spanner. Then retighten the bar nut as tightly as you can by hand.

•Raise the tip of the bar and stretch the chain by tightening the chain tensioning screw using the combination spanner. Tighten the chain until it does not sag from the underside of the bar.

•Use the combination spanner to tighten the bar nuts while lifting the tip of the bar at the same time. Check that you can pull the chain round freely by hand and that it does not sag from the underside of the bar.

The position of the chain tensioning screw on our chain saws varies from model to model. See instructions under the heading What is what? to ﬁnd out where it is on your model.

14 – English

445e, 450e

•Release the knob by folding it out.

•Turn the knob anti clockwise to loosen the bar cover.

•Adjust the tension on the chain by turning the wheel down (+) for tighter tension and up (-) to loosen the tension.

•Tighten the bar clutch by turning the knob clockwise.

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

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Contents 445 445e 450e Symbols in the operator’s manual KEY to SymbolsSymbols on the machine 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 sawPersonal protective equipment Machine′s safety equipmentAlways use common sense Chain brake and front hand guardGeneral Safety Precautions Throttle lockout Chain catcherVibration damping system Stop switchRight hand guard MufﬂerCutting equipment designed to reduce kickback Cutting equipmentGeneral rules BarSharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethAdjustment of depth gauge setting General advice on adjusting depth gauge settingIncreased if the depth gauge setting is Too large445 Tensioning the chainBar and cause serious or even fatal injury 445e, 450eChecking chain lubrication Lubricating cutting equipmentFilling with chain oil Checking wear on cutting equipment Chain drive sprocketNeedle bearing lubrication 445 AssemblyFitting the bar and chain 445e, 450e115 10 81-95 Rev.1 Fuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageStarting Starting and StoppingStarting and stopping Stopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules Basic cutting technique TermsLog is supported at one end. There is a high risk Tree felling techniqueLimbing Safe distanceDirectional cuts Felling directionClearing the trunk and preparing your retreat Felling cut Freeing a tree that has fallen badly How to avoid kickbackWhat is kickback? Cutting the trunk into logs General MaintenanceCarburetor adjustment Checking the inertia brake release Mufﬂer Tensioning the recoil spring StarterReplacing the starter cord Fitting the starter Air ﬁlterReplacing the return and drive springs Recoil spring aNeedle bearing lubrication Spark plugLubricating the bar tip sprocket Cooling systemWinter use Air Injection centrifugal cleaningTemperature -5C 23F or colder Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical data050/1,3 mm Bar and chain combinationsSaw chain ﬁling and ﬁle gauges 058/1,5 mmFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsOther safety precautions American Standard Safety PrecautionsSafety precautions for chain saw Kickback safety precautionsPage 1151081-95