Husqvarna 445 EPA II, 445e EPA II, 450e EPA II manual General rules

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WORKING TECHNIQUES

General rules

1If you understand what kickback is and how it happens then you can reduce or eliminate the element of surprise. By being prepared you reduce the risk. Kickback is usually quite mild, but it can sometimes be very sudden and violent.

2Always hold the chain saw firmly with your right hand on the rear handle and your left hand on the front handle. Wrap your fingers and thumbs around the handles. You should use this grip whether you are right-handed or left- handed. This grip minimizes the effect of kickback and lets you keep the chain saw under control. Do not let go of the handles!

3Most kickback accidents happen during limbing. Make sure you are standing firmly and that there is nothing in the way that might make you trip or lose your balance.

Lack of concentration can lead to kickback if the kickback zone of the bar accidentally touches a branch, nearby tree or some other object.

Have control over the workpiece. If the pieces you intend to cut are small and light, they can jam in the saw chain and be thrown towards you. Even if this does not need to be a danger, you may be surprised and lose control of the saw. Never saw stacked logs or branches without first separating them. Only saw one log or one piece at a time. Remove the cut pieces to keep your working area safe.

4Never use the chain saw above shoulder height and avoid cutting with the tip of the bar. Never use the chain saw one-handed!

5In order to keep control of your saw, always maintain a firm foothold. Never work on a ladder, in a tree or on any other insecure support.

6Always use a fast cutting speed, i.e. full throttle.

7Take great care when you cut with the top edge of the bar, i.e. when cutting from the underside of the object. This is known as cutting with a pushing chain. The chain tries to push the chain saw back towards the user. If the saw chain is jamming, the saw may be pushed back at you.

8Unless the user resists this pushing force there is a risk that the chain saw will move so far backwards that only the kickback zone of the bar is in contact with the tree, which can lead to a kickback.

Cutting with the bottom edge of the bar, i.e. from the top of the object downwards, is known as cutting with a pulling chain. In this case the chain saw pulls itself towards the tree and the front edge of the chain saw body rests naturally on the trunk when cutting. Cutting with a pulling chain gives the operator better control over the chain saw and the position of the kickback zone.

9Follow the instructions on sharpening and maintaining your bar and chain. When you replace the bar and chain use only combinations that are recommended by us. See instructions under the headings Cutting equipment and Technical data.

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Contents English EPA II 445e EPA 450e EPASymbols in the operator’s manual KEY to SymbolsSymbols on the machine Contents Dear customer IntroductionWhat is what on the chain saw? What is WHAT?Always use common sense General Safety PrecautionsBefore using a new chain saw Chain brake and front hand guard Machine′s safety equipmentPersonal protective equipment General Safety Precautions Vibration damping system Throttle lockoutChain catcher Right hand guardGeneral rules Stop switchCutting equipment MufflerCutting equipment designed to reduce kickback Sharpening your chain and adjusting depth gauge settingSharpening cutting teeth General advice on adjusting depth gauge setting445e, 450e Adjustment of depth gauge settingTensioning the chain 445Checking chain lubrication Lubricating cutting equipmentChain oil Filling with chain oilChecking wear on cutting equipment Chain drive sprocketNeedle bearing lubrication 445e, 450e AssemblyFitting the bar and chain 445Assembly Fuel Fuel HandlingLong-term storage Fuel safetyFueling Transport and storageWarm engine Starting and StoppingStarting and stopping Cold engineStopping General working instructions Basic safety rulesWorking Techniques Before useGeneral rules Limbing Basic cutting techniqueGeneral TermsClearing the trunk and preparing your retreat Tree felling techniqueSafe distance Felling directionDirectional cuts FellingFreeing a tree that has fallen badly How to avoid kickbackWhat is kickback? Cutting the trunk into logs General MaintenanceCarburetor adjustment Checking the brake trigger Checking the inertia brake releaseMuffler Replacing the return and drive springs StarterReplacing the starter cord Tensioning the recoil springNeedle bearing lubrication Air filterSpark plug Lubricating the bar tip sprocketWinter use Air Injection centrifugal cleaningTemperature -5C 23F or colder Cooling systemDaily maintenance Weekly maintenance Monthly maintenance Maintenance scheduleTechnical data Technical DataSaw chain filing and file gauges Bar and chain combinationsYour Warranty Rights and Obligations Federal Emission Control Warranty StatementOther safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Kickback safety precautions1150341-95 ´z+RB3¶55¨ ´z+RB3¶55¨

445 EPA II, 445e EPA II, 450e EPA II specifications

Husqvarna is a name synonymous with power and durability, especially when it comes to its line of chainsaws like the Husqvarna 445 EPA II, 445e EPA II, and 450e EPA II. These models combine advanced technology and ergonomic design to fulfill the needs of both professional users and homeowners.

The Husqvarna 445 EPA II chainsaw is designed for versatility and ease of use. It boasts a 45.7cc engine, providing a balance of power and weight ideal for various cutting tasks. The chainsaw features Husqvarna’s X-Torq engine technology, which reduces emissions and improves fuel efficiency. This means less downtime for refueling and a smaller ecological footprint, making it environmentally friendly. Additionally, the LowVib system minimizes vibration, which translates to reduced user fatigue over long periods of use.

The 445e EPA II takes similar principles and enhances them with increased efficiency and usability. This model includes the Air Injection system, which helps filter out larger dust and debris particles before reaching the air filter, ensuring consistent performance and a longer lifespan for the machine. Its lightweight design makes it easier to maneuver while the front handle is ergonomically shaped for a secure grip. The easy-start feature allows users to get going quickly with minimal effort.

Moving up the line, the Husqvarna 450e EPA II offers more power, featuring a slightly larger engine and an improved cutting capacity. This model is perfect for heavy-duty tasks, from felling trees to cutting firewood. Like its predecessors, it employs X-Torq engine technology and also includes the Quick Release Air Filter, making maintenance easier and faster. The robust design and advanced security features—such as the inertia-activated chain brake—ensure safe operation even under challenging conditions.

Overall, the Husqvarna 445 EPA II, 445e EPA II, and 450e EPA II chainsaws represent a commitment to safety, efficiency, and user comfort. The integration of modern technological features, coupled with Husqvarna's reputation for quality workmanship, makes these chainsaws ideal choices for anyone looking to tackle a range of outdoor cutting applications with confidence.
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