It is important to give techniques names because it helps.
The depth of the notch should be 1/3 of the tree diameter. The face opening of a notch ˝A ˛ should be equal to the depth of ˝B ˛.
An open face notch is safest and requires an opening of 70% or more to prevent premature closing of the notch. Open face notches require the hinge length to be 80% or more of the DBH. The emphasis is on the.
making the directional notch correctly is vital to safely felling a tree. The concept of directional felling is based on creating a “hinge” of wood that guides the tree during the fall.
The hinge is formed by the directional notch and the final felling cut. The placement, angle and depth of the directional. Nov 27, How to make a directional notch Before you begin.
Do not cut large branches that support trunk above the ground.
Tree felling can be dangerous. The best way to stay safe is to be prepared. So before you start Choosing the right directional notch. A directional notch can be done in many different ways. The Estimated Reading Time: 6 mins. Nov 30, The easiest choice is to fell the tree in the direction it would naturally fall due to slope, overhang and wind direction.
Felling in another direction requires a special technique, more effort, and is sometimes just impossible. Stand beside the tree and behind your saw, with your chainsaw positioned to begin cutting the top cut of the notch aiming the sights in the direction you want to fall the tree. The felling sights are raised ridges, indentations or black lines and are located on the top and both sides of the saw body on most professional model chainsaws. To untangle a small tree pull the butt away from the stump.
If it is still attached, cut it clear or use a felling lever. To shift medium sized trees, get one or two stout poles. Lever up the butt. Mar 05, The open-faced notch The open-faced notch is perfect for trees that require a high level of accuracy. On the off chance that the individual is cutting in a tight spot, where accuracy is pertinent, the open-faced notch is considered the safest and secure notch to use.
In this notch, a vast, sideways V is cut into the side of the tree.