STERWINS ECS2-35.3 Mode D'emploi page 230

help to avoid pinching either the saw chain or the guide bar when the
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second notch is being made.
Felling back cut
1. Make the felling back cut at least 50 mm higher than the horizontal
notching cut. Keep the felling back cut parallel to the horizontal
notching cut. Make the felling back cut so enough wood is left to act as
a hinge. The hinge wood keeps the tree from twisting and falling in the
wrong direction. Do not cut through the hinge.
2. As the felling gets close to the hinge, the tree should begin to fall. If
there is any chance that the tree may not fall in desired direction or it
may rock back and bind the saw chain, stop cutting before the felling
back cut is complete and use wedges of wood, plastic or aluminium to
open the cut and drop the tree along the desired line of fall.
3. When the tree begins to fall remove the product from the cut, stop the
motor, put the product down, then use the retreat path planned. Be
alert for overhead limbs falling and watch your footing.
Limbing a tree
Limbing is removing the branches from a fallen tree. When limbing leave
larger lower limbs to support the log off the ground. Remove the small
limbs in one cut. Branches under tension should be cut from the bottom
up to avoid binding the product.
Cutting spring poles
A spring pole is any log, branch, rooted stump, or sapling which is bent
under tension by other wood so that it springs back if the wood holding it
is cut or removed.
2. SAFETY INSTRUCTIONS
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