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KICKBACK PREVENTION

DANGER!

Kickbacks occur suddenly and without warning. A kickback may be violent enough to throw a chainsaw back at the user. A running chain can inflict severe and even fatal injury. It is imperative for users to be familiar with the causes of kickbacks in order to exercise the proper care and use working techniques to prevent kickback.

CAUTION!

Improperly sharpened cutters or the wrong chain and guide bar combination will increase the risk of kickback. See «Technical Specifications» on page 3.

CAUTION!

Do not let the chain come in contact with the ground or any objects. Chain link and wire fencing materials present a particular kickback hazard.

Observe all safety rules in order to avoid kickbacks and other accidents which may cause injury.

•A kickback is a sudden reaction in which a chain saw is thrown back as a result from contact with the upper part of the bar nose known as the kickback danger zone.

•The direction of a kickback is always in the same plane as the guide bar. The most common reaction is that the guide bar and saw are thrown up and back towards the operator. The saw can be thrown in other directions, depending on the position of the saw at the moment of kickback.

Basic rules

•Knowing the cause and nature of a kickback helps reduce or eliminate the element of surprise. Surprise increases the danger of an accident. Most kickbacks are small, but some are violent, and all are lightning-fast.

•Always grip the chain saw firmly with thumb and fingers wrapped around the handles, right hand on the rear handle and left hand on the front handle. All users, whether right or left-handed, must use this grip, which will reduce the effect of a kickback and help keep the saw under control.

Do not let go of the chain saw handles!

•Most accidents caused by kickbacks take place in con- nection with limbing. Make certain your footing is secure and that there are no objects nearby which may trip you or make you lose your balance. If you are not careful, the kickback danger zone could make contact with a branch, a nearby tree or some other object which could cause a kickback.

•Never use a chain saw to cut above shoulder height, and do not cut with the guide bar nose. Never operate a chain saw while holding it with only one hand!

•Maintain full speed while cutting.

•Take extreme care when cutting with the top chain (on the underside of a log). The force of the chain action pushes the saw backwards, and if the operator does not maintain firm control, the kickback danger zone may move far enough back into the kerf to produce a kickback. Cutting with the bottom chain (on the top side of the log) pulls the saw for- ward. This presses the power head firmly against the tree, providing a steady support and giving the operator added control over the saw and consequently over the kickback danger zone.

•Follow the maintenance and sharpening instructions for the chain and guide bar. When replacing chains and guide bars, use only combinations recommended by us. See «Technical Specifications».

•The smaller the bar nose radius, the smaller the kickback danger zone and thus

the kickback tendency.

• By using low-kickback cutting equipment and keeping the cutters properly sharpened, the strength of a kickback can be greatly reduced.

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Husqvarna 317 EL, 321 EL manual Kickback Prevention, Basic rules
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317 EL, 321 EL specifications

The Husqvarna 317 EL and 321 EL are two innovative models of electric chainsaws designed to meet the needs of both landscaping professionals and homeowners. These machines integrate modern technology with user-friendly features to provide a robust and eco-friendly cutting experience.

The Husqvarna 317 EL is lightweight and well-balanced, making it ideal for prolonged use. It features a powerful electric motor that ensures consistent performance without the noise and emissions typically associated with gasoline-powered alternatives. With a bar length of 14 to 16 inches, the 317 EL is capable of handling various cutting tasks, from pruning branches to cutting firewood. The saw is equipped with an automatic chain lubrication system, which maintains optimal chain performance by reducing wear and ensuring smooth operation.

Similarly, the Husqvarna 321 EL is designed for users looking for a more powerful option. With a slightly longer bar length, it offers greater cutting capacity, making it suitable for larger projects. The 321 EL also boasts an efficient electric motor, providing high torque for demanding cutting tasks. One of the standout features of this model is its ergonomic design, including a comfortable handle and reduced vibration levels, which enhance user comfort and reduce fatigue during extended use.

Both models utilize advanced safety features, including a chain brake system that stops the chain instantly in case of kickback, ensuring user safety at all times. They also come with an easy-to-access chain tensioning system, allowing for quick adjustments without the need for additional tools. Husqvarna's commitment to innovation is evident in these chainsaws, as they incorporate features like an onboard battery indicator, which keeps users informed about battery levels.

In terms of maintenance, both the 317 EL and 321 EL are designed for convenience. Their compact designs and easy-to-remove air filters make routine maintenance and cleaning straightforward. The durable construction ensures longevity and reliable performance in a variety of conditions.

Overall, the Husqvarna 317 EL and 321 EL offer a blend of power, efficiency, and safety, making them excellent choices for anyone looking to invest in electric chainsaws. With their impressive features and innovative technologies, these models stand out in the market, catering to the needs of different users while promoting environmentally friendly practices.
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