Natural conditions that can cause a tree to
fall in a particular direction include:
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.
S The wind direction and speed.
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,
Hinge holds tree on stump and helps
control fall
Opening
of felling
cut
it can snap and fall toward the
operator.
Check for broken or dead branches which
can fall on you while cutting.
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.
Plana clear retreat pathto therear anddiag-
onal to the line of fall.
Closing of
notch
Plan a clear retreat path
NOTE: Before felling cut is complete, use
wedges to open the cut when necessary to
controlthedirectionoffall. Toavoidkickback
and 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.
Direction of Fall
45
_
FELLING LARGE TREES
inches in diameter or larger)
S As tree starts to fall, stop saw, put it down,
and get away quickly on your planned re-
treat path.
(6
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.
NOTE: If the tree has large buttress roots,
removethembeforemakingthenotch. Ifus-
ing saw to remove buttress roots, keep saw
chainfromcontactinggroundtopreventdull-
ing of the chain.
S
DO NOT cut down a partially fallen tree
withyour saw. Beextremely cautious with
partially fallen trees that may be poorly
supported. When a tree doesn’t fall com-
pletely,setthesawasideandpulldownthe
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.
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:
Donot standon thelog
being cut. Any portion can roll causing loss
of 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
pieces of woodcould beflung towardopera-
tor.
S Use a sawhorse to cut small logs. Never
allow another person to hold the log while
cuttingandnever holdthelogwith your leg
or foot.
Final cut here. 5 cm above
center of notch.
First cut
Notch
5 cm
5
cm
S Do not cut in an area where logs, limbs,
and roots are tangled such as in a blown
down area. Drag the logs intoa clear area
before cutting by pulling out exposed and
cleared logs first.
Second cut
10
| Categories | Chainsaw Manuals, Husqvarna Chainsaw Manuals |
|---|---|
| Tags | Husqvarna 137, Husqvarna 142 |
| Model Year | 2005 |
| Download File |
|
| Document Type | Operator's Manual |
| Language | English |
| Product Brand | Husqvarna, Chainsaw |
| Document File Type | |
| Publisher | husqvarna.com |
| Wikipedia's Page | Husqvarna |
| Copyright | Attribution Non-commercial |
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