Craftsman 358.350660 Manuel d'instructions télécharger pdf (Page 11)

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;t""" "O" "_ - Direction of fall

FELLING LARGE TREES

(6 inches in diameter or larger)

The notch method is used to fell large

trees. A notch is cut on the side of the

tree in the desired direction of fall. After

a felling cut is made on the opposite

side of tree, the tree will tend to fall in

the direction of the notch.

NOTE: If tree has large buttress roots,

remove them before making the notch.

If using saw to remove buttress roots,

keep saw chain from contacting

ground to prevent dulling of the chain.

NOTCH CUT AND FELLING TREE

• Make notch cut by cutting the top of

the notch first. Cut through 1/3 of the

diameter of the tree. Next complete

the notch by cutting the bottom. See

illustration. Once the notch is cut, re-

move the wedge of wood from tree.

Felling cut here

First cut 2.I

Y'[ _-Hi_

• After removing the wood from the

notch, make the felling cut on the op-

posite side of the notch. This is done

by making a cut about two inches

higher than the center of the notch.

This will leave enough uncut wood

between the felling cut and the notch

to form a hinge. This hinge will help

prevent the tree from failing in the

wrong direction.

Hinge holds tree on

stump and helps

control fall

Opening of

felling cut

Closin

of not_

NOTE: Before felling cut is complete,

use wedges to open the cut when

necessary to control the direction of

fall. To avoid kickback and chain

damage, use wood or plastic wedges,

but never steel or iron wedges.

• Be alert to signs that the tree is

ready to fall: cracking sounds, widen-

ing of the felling cut, or movement in

the upper branches.

• As tree starts to fall, stop saw, put it

down, and get away quickly on your

planned retreat path.

• DO NOT use your saw to cut down a

padially fallen tree. Be extremely cau-

tious with partially fallen trees that may

be poorly supported. When a tree

doesn't fall completely, set the saw

aside and pull down the tree with a

cable winch, block and tackle, or

tractor.

CUTTING A FALLEN TREE

(BUCKING)

Bucking is the term used for cutting a

fallen tree to the desired log size.

It _

41_WARNING: Do not stand on the

log being cut. Any portion can roll

causing loss of footing and control. Do

not stand downhill of the log being cut.

IMPORTANT POINTS

• Cut only one log at a time.

• Cut shattered wood very carefully;

sharp pieces of wood could be flung

toward operator.

• Use a sawhorse to cut small logs.

Never allow another person to hold

the log while cutting and never hold

the log with your leg or foot.

• Do not cut in an area where logs,

limbs, and roots are tangled. Drag

logs into a clear area before cutting

them by pulling out exposed and

cleared logs first.

TYPES OF CUTTING USED FOR

BUCKING

_WARNING: If saw becomes

pinched or hung in a log, don't try to

force it out. You can lose control of the

saw resulting in injury and/or damage

to the saw. Stop the saw, drive a

wedge of plastic or wood into the cut

until the saw can be removed easily. Re-

start saw and carefully reenter the cut.

Do not use a metal wedge. Do not at-

tempt to restart your saw when it is

pinched or hung in a log.

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