Jonsered CS 2137 Notch CUT and Felling the Tree, Cutting a Fallen Tree, Important points

NOTCH CUT AND FELLING THE TREE

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 cut- ting the bottom of the notch. See illustra- tion. Once the notch is cut remove the notch of wood from the tree.

	Final cut here. 5 cm above
First cut	center of notch.
		5 cm
Notch			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

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.

SBe alert to signs that the tree is ready to fall: cracking sounds, widening of the felling cut,

or movement in the upper branches.

SAs tree starts to fall, stop saw, put it down, and get away quickly on your planned re-

treat path.

SDO NOT cut down a partially fallen tree with your saw. Be extremely cautious with par- tially fallen trees that may be poorly sup- ported. 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 length.

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

SCut only one log at a time.

SCut shattered wood very carefully; sharp pieces of wood could be flung toward oper-

ator.

SUse 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 ex- posed 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. 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 overcut- ting use light downward pressure.

Overcutting Undercutting

Undercutting involves cutting on the under- side of the log with top of saw against the log. When undercutting use light upward pres- sure. 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 con- trolled in this position.

First cut on pressure side of log

Secondcut

Second cut

First cut on pressure side of log

BUCKING WITHOUT A

SUPPORT

SOvercut through 1/3 of the diameter of the log.

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