Preparing Work Area At Base Of Tree; Basic Information On Felling Cut; Cutting The Felling Notch; Holding Strap - Stihl MSA 160 C Instruction Manual

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11.4.2 Preparing work area at base of tree

► Remove obstacles from work area at tree base.
► Remove growth from tree base.
► If the tree has large, healthy buttress roots: Make vertical
cut first and then a horizontal cut, and remove the
resulting piece.

11.4.3 Basic information on felling cut

C
C Felling notch
The felling notch determines the direction of fall.
D Hinge
The hinge helps control the falling tree. The width of the
hinge is 1/10 of the trunk diameter.
E Felling cut
The tree is felled with the felling cut.
66
C E
1/10
D
G
F Stabilizing strap
The stabilizing strap supports the tree and helps prevent
it from falling prematurely. The width of the stabilizing
strap is 1/10 to 1/5 of the trunk diameter.
G Holding strap
The holding strap supports the tree and helps prevent it
from falling prematurely. The width of the holding strap is
1/10 to 1/5 of the trunk diameter.

11.4.4 Cutting the felling notch

The felling notch determines the direction in which the tree
falls. Country-specific standards for making the felling notch
must be observed.
► Position the saw so that the felling notch is an right angles
to the direction of fall and the saw is close to the ground.
► Make the horizontal cut.
► Make the angle cut at 45° to the horizontal cut.
11 Operating the Saw
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