Natural conditions that can cause a tree to
fall in a particular direction include:
Hinge holds tree on stump and helps
control fall
Opening
S The wind direction and speed.
of felling
cut
S The lean of the tree. The lean of a tree
might not be apparent due to uneven or
slopingterrain. Useaplumb or level tode-
termine the direction of tree lean.
S Weight and branches on one side.
S Surrounding trees and obstacles.
Look for decay and rot. If thetrunk is rotted,
it can snap and fall toward the operator.
Make sure there is enough room for the treeto
fall. Maintain a distance of 2-1/2 tree lengths
from the nearest person or other objects. En-
gine noise can drown out a warning call.
Remove dirt, stones, loose bark, nails, sta-
ples,andwirefromthetreewherecuts areto
be made.
Closing
of notch
NOTE: Before felling cut is complete, use
wedges to open the cut when necessary to
controlthedirectionoffall. Toavoidkickback
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 re-
treat path.
Plan a clear retreat path
S DO 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,
setthesaw asideandpulldownthetreewith
a cable winch, block and tackle, or tractor.
Direction of Fall
45
_
CUTTING A FALLEN TREE
(BUCKING)
Bucking is the term used for cutting a fallen
tree to the desired log length.
FELLING LARGE TREES
(15
cm in diameter or larger)
The notch method is used to fell large trees.
A notchis cutonthesideofthetreeinthede-
sired direction of fall. After a felling cut is
made on the opposite side of tree, the tree
will tend to fall into the notch.
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
ofthetree.Nextcompletethenotchbycut-
ting the bottom of the notch. See illustra-
tion. Once the notch is cut remove the
notch of wood from the tree.
WARNING: Do not stand on the log
beingcut.Anyportioncanrollcausinglossof
footing and control. Do not stand downhill of
the log being cut.
Important points
S Cut only one log at a time.
S Cut shattered wood very carefully; sharp
piecesofwoodcouldbeflungtowardoper-
ator.
S Use a sawhorse to cut small logs. Never
allow another person to hold the log while
cuttingandnever holdthelogwith 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.
Final cut here. 5 cm above
center of notch.
First cut
5
cm
TYPES OF CUTTING USED FOR
BUCKING
Notch
5
cm
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
untilthesaw canberemovedeasily. Restart
thesaw andcarefully reenter the cut. Donot
attempttorestartyoursaw whenitispinched
or hung in a log.
Second cut
S After removing the wood from the notch,
make the felling cut on the opposite side of
thenotch.Thisisdonebymakingacutabout
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 helpprevent thetree
from falling in the wrong direction.
Turn saw OFF and use a plastic or
wooden wedge to force cut open.
11
| Categories | Chainsaw Manuals, McCulloch Chainsaw Manuals |
|---|---|
| Tags | McCulloch M3816, McCulloch M4218 |
| Model Year | 2009, 2010 |
| Download File |
|
| Language | English |
| Product Brand | McCulloch. Support Phone for US: Wheeled (Mowers, Tractors, Tillers, Snow Throwers) - 1-800-849-1297
McCulloch Handheld (Chainsaws, Trimmers, Blowers, Edgers) - 1-800-554-6723 All McCulloch Products - 1-800-521-8559, Chainsaw |
| Document File Type | |
| Publisher | mcculloch.com |
| Wikipedia's Page | McCulloch Motors |
| Copyright | Attribution Non-commercial |
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