Stihl MS 651 Instruction Manual page 22

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1
1 Normal tree
A normal tree is vertical and has an even
crown.
2 Leaner
A leaner stands at an angle and the crown
faces in the direction of fall.
11.9.7
Felling normal, small diameter tree
A normal tree is felled with a felling cut and stabi‐
lizing strap. This felling cut must be performed if
the tree diameter is less than the guide bar's
length.
► Shout a warning.
► Plunge the guide bar into the felling cut until it
is visible at the other side of the trunk,
11.9.5.
► Apply the spiked bumper behind the hinge and
use it as a pivot.
► Enlarge felling cut in direction of hinge.
► Enlarge felling cut in direction of stabilizing
strap.
► Insert a felling wedge. The felling wedge must
match the tree diameter and the width of the
felling cut.
► Shout a warning.
22
► With outstretched arms, cut through the stabi‐
lizing strap horizontally from outside at the
same level as the felling cut.
The tree falls.
11.9.8
A normal tree is felled with a felling cut and stabi‐
2
lizing strap. This felling cut must be performed if
the tree diameter is greater than the guide bar's
length.
► Shout a warning.
► Apply the spiked bumper at the same height
as the felling cut and use it as a pivot.
► Hold the saw horizontally and swing it into the
felling cut as far as possible.
► Enlarge felling cut in direction of hinge.
1.
► Enlarge felling cut in direction of stabilizing
2.
strap.
► Move to the other side of the tree.
► Plunge the guide bar into the felling cut at the
same height.
► Enlarge felling cut in direction of hinge.
► Enlarge felling cut in direction of stabilizing
strap.
3.
► Insert a felling wedge. The felling wedge must
match the tree diameter and the width of the
felling cut.
► Shout a warning.
► With outstretched arms, cut through the stabi‐
lizing strap horizontally from outside at the
same level as the felling cut.
The tree falls.
11 Operating the Saw
Felling normal, large diameter tree
1.
2.
3.
4.
5.
6.
0458-784-0121-C

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