OPERATION

the saw at full throttle without a cutting load can result in unnecessary wear to the chain, bar, and engine.

nDo not put pressure on the saw at the end of the cut.

FELLING TREES

HAZARDOUS CONDITIONS

WARNING:

Do not fell trees during periods of high wind or heavy ­precipitation. Wait until the hazardous weather has ended.

When felling a tree, it is important that you heed the following warnings to prevent possible serious injury.

n Do not cut down trees having an extreme lean or large trees with rotten limbs, loose bark, or hollow trunks. Have these trees pushed or dragged down with heavy equipment, then cut them up.

n Do not cut trees near electrical wires or buildings.

n Check the tree for damaged or dead branches that could fall and hit you during felling.

n Periodically glance at the top of the tree during the backcut to assure the tree is going to fall in the desired direction.

nIf the tree starts to fall in the wrong direction, or if the saw gets caught or hung up during the fall, leave the saw and save yourself!

PROPER PROCEDURE FOR TREE FELLING

See Figures 21 - 24.

nPick your escape route (or routes in case the intended route is blocked). Clear the immediate area around the tree and make sure there are no obstructions in your planned path of retreat. Clear the path of safe retreat approximately 135° from the planned line of fall.

nConsider the force and direction of the wind, the lean and balance of the tree, and the location of large limbs. These things influence the direction in which the tree will fall. Do not try to fell a tree along a line different from its natural line of fall.

PLANNED LINE

OF FALL

90°

135° FROM

PLANNED

LINE OF FALLPATH OF SAFE RETREAT

PLANNED

135°

 

PATH

LINE OF

 

OF SAFE

FALL

 

45°

RETREAT

 

 

 

90°

45°

135°

Fig. 21

HINGE 2 in. OR 1/10 DIA

NOTCH -

APPROX. 1/3

DIAMETER OF TRUNK

BACK CUT

2 in.

Fig. 22

Page 20 — English

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Image 20
Ryobi RY10520, RY10518 Felling Trees Hazardous Conditions, Proper Procedure for Tree Felling, See Figures 21

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.