Stihl 015 Instruction Manual / Owners Manual page 17

21
22
If the tree has large buttress roots, cut into the largest
buttresses vertically first (horizontally next) and remove
(ill. 21).
Then, determine the placement of the felling notch (ill. 22).
The felling notch when properly placed determines the
direction in which the tree will fall. It is made perpendicular
to the line of fall and should be as close to the ground as
possible. Cut the felling notch to a depth of about one-fifth
to one-fourth of the trunk diameter (ill. 23). It should be
in no case higher than it is deep. Make the felling notch
very carefully.
Begin the felling cut slightly higher than the felling notch
and on the opposite side of the tree (ill. 23). Then cut
horizontally through towards the felling notch. Apply the
chain saw with its spikes directly behind the uncut portion
of wood and cut toward the notch (ill. 24). Leave approx-
imately
1/ 10
of the tree diameter uncut. This is the hinge
(ill. 24). Do not cut through the hinge because you could
lose control of the direction of the fall. Drive wedges into
the felling cut where necessary to control the direction
of the fall. Wedges should be of wood, light alloy or plastic-
never of steel, which can cause kick-back and damage
to the chain.
23
24
Hinge
--1-4>1
Felling notch
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