S Practice cutting a few small logs using the
following techniques to get the“feel” ofus-
ing your saw before you begin a major
sawing operation.
Plana clear retreat pathto therear anddiag-
onal to the line of fall.
Plan a clear retreat path
S
S
S
S
Squeeze the throttle trigger and allow the
engine to reach full speed before cutting.
saw frame
Begin cutting with the
against the log.
Direction of Fall
Keep the engine at full speed the entire
time you are cutting.
45_
Allowthechaintocutforyou.Exertonly
light downward pressure. If you force
thecut,damagetothebar,chain,oren-
gine can result.
FELLING LARGE TREES
(6
inches (15 cm) in diameter or larger)
S
Release the throttle trigger as soon as
the cut is completed, allowing the en-
gine to idle. If you run the saw at full
throttlewithoutacuttingload,unneces-
sary wear can occur to the chain, bar,
and engine. It is recommended that
the engine not be operated for lon-
ger than 30 seconds at full throttle.
Toavoidlosingcontrolwhencutiscom-
plete,donotputpressureonsaw atend
of cut.
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.
NOTCH CUT AND FELLING THE
TREE
S
S Stop the engine before setting the saw
down after cutting.
TREE FELLING TECHNIQUES
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:
Check for broken or
dead branches which can fall while cutting
causingserious injury. Donotcutnearbuild-
ings or electricalwires ifyou donot know the
directionoftreefall,norcutatnightsinceyou
will not be ale to see well, nor during bad
weather suchas rain, snow,or strongwinds,
etc. If the tree makes contact with any utility
line, the utility company should be notified
immediately.
Final (felling) cut here, 2 inches
(5 cm) above center of notch.
First cut
Notch
S Carefullyplanyour sawingoperationinad-
vance.
S Cleartheworkarea. Youneedacleararea
allaroundthetreeso youcan havesecure
footing.
S The chain saw operator should keep on
the uphill side of the terrain as the tree is
likelytorollor slidedownhillafteritisfelled.
S Study the natural conditions that can cause
the tree to fall in a particular direction.
Natural conditions that can cause a tree to
fall in a particular direction include:
S The wind direction and speed.
Hinge
Second cut
S After removing the wood from the notch,
make the felling cut on the opposite side of
thenotch.Thisisdonebymakingacutabout
two inches (5 cm) higher than the center of
thenotch.Thiswillleaveenoughuncutwood
between the felling cut and the notch to form
a hinge. This hinge will helpprevent thetree
from falling in the wrong direction.
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.
Closing of
notch
12
| Categories | Chainsaw Manuals, Poulan Pro Chainsaw Manuals |
|---|---|
| Tags | Poulan Pro SM4218AVX |
| Model Year | 2010 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Poulan Pro. Poulan Pro US phone support. Wheeled (Mowers, Tractors, Tillers, Snow Throwers): 1-800-849-1297, Handheld (Chainsaws, Trimmers, Blowers, Edgers): 1-800-554-6723, Chainsaw |
| Document File Type | |
| Publisher | poulanpro.com |
| Wikipedia's Page | Poulan |
| Copyright | Attribution Non-commercial |
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