GLOSSARY OF TERMS

Bucking

The process of cross cutting a felled tree or log into lengths.

Chain Brake

A device used to stop the saw chain.

Chain Saw Power Head

A chain saw without the saw chain and guide bar.

Clutch

A mechanism for connecting and disconnecting a driven member to and from a rotating source of power.

Drive Sprocket or Sprocket

The toothed part that drives the saw chain.

Felling

The process of cutting down a tree.

Felling Back Cut

The final cut in a tree felling operation made on the opposite side of the tree from the notching undercut.

Front Hand Guard

A structural barrier between the front handle of a chain saw and the guide bar, typically located close to the hand position on the front handle, and sometimes employed as an activating lever for a chain brake.

Front Handle

The support handle located at or toward the front of the chain saw. This handle is for the left hand.

Guide Bar

A solid railed structure that supports and guides the saw chain.

Kickback

The backward or upward motion, or both, of the guide bar occurring when the saw chain near the nose of the top area of the guide bar contacts any object such as a log or branch, or when the wood closes in and pinches the saw chain in the cut.

Kickback (Pinch)

Therapidpushbackofthesawwhichcanoccurwhen the wood closes in and pinches the moving saw chain in the cut along the top of the guide bar.

Kickback (Rotational)

The rapid upward and backward motion of the saw which can occur when the moving saw chain near the upper portion of the tip of the guide bar contacts an object, such as a log or branch.

Low-Kickback Chain

A chain that complies with the kickback perfor- mance requirements of ANSI B175.1 when tested on a representative sample of chain saws.

Normal Cutting Position

Those positions assumed in performing the bucking and felling cuts.

Notching Undercut

A notch cut in a tree that directs the tree’s fall.

Rear Handle

The support handle located at or toward the rear of the saw. It normally contains the throttle. This handle is for the right hand.

Reduced Kickback Guide Bar

A guide bar which has been demonstrated to reduce kickback significantly.

Replacement Saw Chain

A chain that complies with the kickback perfor- mance requirements of ANSI B175.1 when tested with specific chain saws. It may not meet the ANSI performance requirements when used with other saws.

SAFE-T-TIP®Nose Guard

An attachment that may be provided on the end of the guide bar to prevent the chain at the end of the guide bar from contacting the wood.

Saw Chain

A loop of chain having cutting teeth that cut the wood, and that is driven by the motor and is sup- ported by the guide bar.

Springpole

A small tree (sapling) or limb that is bent or trapped under tension. It may “spring back” rapidly when cut, causing a dangerous situation.

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Ryobi RY10520, RY10518 manuel dutilisation Glossary of Terms
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RY10518, RY10520 specifications

The Ryobi RY10518 and RY10520 are two popular models in the Ryobi lineup of outdoor power equipment, specifically designed for homeowners and DIY enthusiasts seeking efficient and reliable string trimmers. Both models showcase innovative features, advanced technologies, and practical characteristics that make yard maintenance tasks more manageable and enjoyable.

The Ryobi RY10518 is powered by a robust 18-volt lithium-ion battery that delivers efficient performance. Its lightweight design makes it easy to maneuver, reducing user fatigue, especially during extended use. The RY10518 features an automatic feed spool, which allows for continuous line advancement without bumping the trimmer against the ground, simplifying the trimming process. The adjustable telescoping shaft enables users to customize the length of the trimmer to suit their height and comfort level.

On the other hand, the Ryobi RY10520 offers more power with its 40-volt lithium-ion battery. This model is designed for those who require a little extra power for tougher vegetation and larger yards. The RY10520 also features an automatic feed spool for hassle-free operation. Its dual-line system provides a wider cutting swath, making it efficient for trimming larger areas quickly. Additionally, the RY10520 is equipped with a brushless motor, which enhances the tool's runtime and overall efficiency, allowing for longer work sessions without the need for frequent recharges.

Both models incorporate Ryobi's signature One+ battery technology, which means that the batteries are interchangeable with other Ryobi tools in the One+ lineup. This feature makes it convenient for users who already own Ryobi products, as they can use the same batteries across multiple tools.

Another defining characteristic of the RY10518 and RY10520 is their user-friendly design. The ergonomic handles provide a comfortable grip, and the safety features ensure peace of mind during operation. Additionally, both models are designed for easy storage, with a compact design that allows them to fit conveniently in garages or tool sheds.

In conclusion, the Ryobi RY10518 and RY10520 are versatile, efficient, and user-friendly string trimmers that cater to a variety of landscaping needs. Whether you opt for the lighter RY10518 perfect for small gardens or the powerful RY10520 ideal for larger areas, both models exemplify Ryobi’s commitment to providing high-quality outdoor power equipment. With their innovative features and technologies, they offer an excellent choice for anyone looking to maintain their yard with ease.
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