Husqvarna 440e, 435e General rules, Cutting equipment designed to reduce kickback, Bar, Chain

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GENERAL SAFETY PRECAUTIONS

Cutting equipment

This section describes how to choose and maintain your cutting equipment in order to:

•Reduce the risk of kickback.

•Reduce the risk of the saw chain breaking or jumping off the bar.

•Obtain optimal cutting performance.

•Extend the life of cutting equipment.

•Avoid increasing vibration levels.

General rules

•Only use cutting equipment recommended by us! See instructions under the heading Technical data.

•Keep the chain’s cutting teeth properly sharpened! Follow our instructions and use the recommended file gauge. A damaged or badly sharpened chain increases the risk of accidents.

•Maintain the correct depth gauge setting! Follow our instructions and use the recommended depth gauge clearance. Too large a clearance increases the risk of kickback.

•Keep the chain properly tensioned! If the chain is slack it is more likely to jump off and lead to increased wear on the bar, chain and drive sprocket.

•Keep cutting equipment well lubricated and properly maintained! A poorly lubricated chain is more likely to break and lead to increased wear on the bar, chain and drive sprocket.

Cutting equipment designed to reduce kickback

WARNING! Faulty cutting equipment or

! the wrong combination of bar and saw chain increases the risk of kickback! Only use the bar/saw chain combinations we recommend, and follow the filing instructions. See instructions under the heading Technical data.

The only way to avoid kickback is to make sure that the kickback zone of the bar never touches anything.

By using cutting equipment with ”built-in” kickback reduction and keeping the chain sharp and well- maintained you can reduce the effects of kickback.

Bar

The smaller the tip radius the lower the chance of kickback.

Chain

A chain is made up of a number of links, which are available in standard and low-kickback versions.

IMPORTANT! No saw chain design eliminates the danger of kickback.

WARNING! Any contact with a rotating

! saw chain can cause extremely serious injuries.

Some terms that describe the bar and chain

To maintain the safety features of the cutting equipment, you should replace a worn or damaged bar or chain with a bar and chain combinations recommended by Husqvarna. See instructions under the heading Technical Data for a list of replacement bar and chain combinations we recommend.

Bar

•Length (inches/cm)

•Number of teeth on bar tip sprocket (T).

•Chain pitch (inches). The spacing between the drive links of the chain must match the spacing of the teeth on the bar tip sprocket and drive sprocket.

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

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Contents 445 445e 450e You will find the following labels on your chain saw KEY to SymbolsSymbols on the machine Symbols in the operator’s manualContents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Before using a new chain saw General Safety PrecautionsChain brake and front hand guard Machine′s safety equipmentAlways use common sense Personal protective equipmentGeneral Safety Precautions Chain catcher Throttle lockoutMuffler Stop switchRight hand guard Vibration damping systemBar Cutting equipmentGeneral rules Cutting equipment designed to reduce kickbackGeneral information on sharpening cutting teeth Sharpening your chain and adjusting depth gauge settingToo large General advice on adjusting depth gauge settingIncreased if the depth gauge setting is Adjustment of depth gauge setting445e, 450e Tensioning the chainBar and cause serious or even fatal injury 445Checking chain lubrication Lubricating cutting equipmentFilling with chain oil Checking wear on cutting equipment Chain drive sprocketNeedle bearing lubrication 445e, 450e AssemblyFitting the bar and chain 445115 10 81-95 Rev.1 Fuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageStarting Starting and StoppingStarting and stopping Stopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Terms Basic cutting techniqueSafe distance Tree felling techniqueLimbing Log is supported at one end. There is a high riskDirectional 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 Recoil spring a Air filterReplacing the return and drive springs Fitting the starterCooling system Spark plugLubricating the bar tip sprocket Needle bearing lubricationWinter use Air Injection centrifugal cleaningTemperature -5C 23F or colder Daily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical Data058/1,5 mm Bar and chain combinationsSaw chain filing and file gauges 050/1,3 mmYour Warranty Rights and Obligations Federal Emission Control Warranty StatementKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw Other safety precautionsPage 1151081-95
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