Www.trueshopping.co.uk - Oregon JW3800 Instruction Manual

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1,2 Undercut: is a V shaped notch on the side of the tree on the
side that is in the direction of felling. The first cut (2) of the V is
made parallel to the ground and then the other slanting cut (1)
is made. Some people use a 45° cut and some use a 90° cut.
Usually the undercut is to a depth of ¼ of the diameter of the
tree.
3, 4 Backcut: is made on the opposite side of the tree, slightly
above the hinge spike of the V shaped undercut. This
releases the stresses on the tree allowing the tree to fall.
NEVER make the backcut lower than the undercut as you will
lose control of the tree. As you are nearing the undercut
leave a small hinge of wood (4) in order to hold the tree and
act as a pivot as the tree falls.

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