Echo CS-303T Chainsaw User Manual


 
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© 08/2013 ECHO Inc.
OPERATION CS-303T
Felling the Tree
A falling tree can seriously damage anything it may hit - a
car, a house, a fence, a power line, or another tree. There
are ways to make a tree fall where you want it, so first
decide where that is!
Before cutting, clear the area around the tree. You will need
good footing while working and you should be able to work the
saw without hitting any obstacles. Next, select a path of retreat.
When the tree begins to fall you should retreat away from the
direction of fall at a 45-degree angle and at least 3 m (10 feet)
from the trunk to avoid the trunk kicking back over the stump.
Begin the cut on the side to which the tree is to fall. Cut a notch
about 1/3 of the way into the tree. The position of this notch is
important since the tree will try to fall “into” the notch. The
felling cut is made on the side opposite the notch and at a level
about 5 cm (2 in.) above the bottom of the notch. Do not try to
cut through to the notch with the felling cut. The remaining
wood between the notch cut and felling cut about 5 cm (2 in.)
will act as a hinge when the tree falls, guiding it in the desired
direction. When the tree starts to fall, kill the engine, place the
saw on the ground and make your retreat quickly.
To fell big trees with a diameter exceeding twice the bar length,
start the notching cuts from one side and draw the saw through
to the other side of the notch. Start the back cut on one side of
the tree, pivoting the saw through to form the desired hinge on
that side. Then remove the saw for the second cut. Insert the
saw in the first cut, very carefully so as not to cause kickback.
The final cut is made by drawing the saw forward in the cut to
reach the hinge.
Limbing
Limbing a fallen tree is much the same as bucking.
Never stand on the tree that you are limbing. When limbing,
caution is the word. Be careful of the tip touching other limbs.
Always use both hands.
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Retreat
Retreat
Direction of fall
45°
45°
3 m (10 feet)
Not this way
Direction of fall
First cut
Notch
Second cut
One-third tree diameter
5 cm (2 in.)
Felling cut
Hinge
5 cm (2 in.)
1
2
3