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NOTCH CUT AND FELLING THE TREE
Important points
S 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 of the notch. See illustration. Once the notch is cut remove the notch of wood from the tree. Final cut here. 5 cm above center of notch.
5 cm
First cut Notch
S Cut only one log at a time. S Cut shattered wood very carefully; sharp pieces of wood could be flung toward operator. S 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. S Do not cut in an area where logs, limbs, and roots are tangled. Drag the logs into a clear area before cutting by pulling out exposed and cleared logs first.
TYPES OF CUTTING USED FOR BUCKING
5 cm
Second cut
S After removing the wood from the notch, make the felling cut on the opposite 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 falling in the wrong direction. Hinge holds tree on stump and helps control fall Opening of felling cut
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. Restart the saw and carefully reenter the cut. Do not attempt to restart your saw when it is pinched or hung in a log.
Turn saw OFF and use a plastic or wooden wedge to force cut open. Overcutting begins on the top side of the log with the saw against the log. When overcutting use light downward pressure. Overcutting Undercutting
Closing of notch
NOTE: Before felling cut is complete, use
wedges to open the cut when necessary to control the direction of fall. To avoid kickback or chain damage, use wood or plastic wedges, but never steel or iron wedges. S Be alert to signs that the tree is ready to fall: cracking sounds, widening of the felling cut, or movement in the upper branches. S As tree starts to fall, stop saw, put it down, and get away quickly on your planned retreat path. S DO NOT cut down a partially fallen tree with your saw. Be extremely cautious 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.
Undercutting involves cutting on the underside of the log with top of saw against the log. When undercutting use light upward pressure. Hold saw firmly and maintain control. The saw will tend to push back toward you.
WARNING: Never turn saw upside down to undercut. The saw cannot be controlled in this position. First cut on pressure side of log
Second cut
Second cut
CUTTING A FALLEN TREE
(BUCKING) Bucking is the term used for cutting a fallen tree to the desired log length.
First cut on pressure side of log
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.
BUCKING WITHOUT A SUPPORT
42
S Overcut through 1/3 of the diameter of the log.
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