Stihl MS 310 Product Instruction Manual - Page 20

Escape path, Buttress roots, Gunning sight, Conventional cut

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English / USA 001BA143 KN Buttress roots B 001BA146 KN C 45° A 45° If the tree has large buttress roots, cut into the largest buttress vertically first (horizontally next) and remove the C B resulting piece. Gunning sight 001BA040 KN Escape path First clear the tree base and work area from interfering limbs and brush and clean its lower portion with an ax. Then, establish two paths of escape (B) and remove all obstacles. These paths should be generally opposite to the planned direction of the fall of the tree (A) and about at a 45° angle. Place all tools and equipment a safe distance away from the tree, but not on the escape paths. When making the felling notch, use the gunning sight on the shroud and housing to check the desired direction of fall: Position the saw so that the gunning sight points exactly in the direction you want the tree to fall. 001BA153 KN Conventional cut C = felling notch - determines the direction of the fall For a conventional cut: : Properly place felling notch perpendicular to the line of fall, close to the ground. : Cut down at approx. 45-degree angle to a depth of about 1/5 to 1/4 of the trunk diameter. : Make second cut horizontal. : Remove resulting 45-degree piece. MS 290, MS 310, MS 390 19

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19
MS 290, MS 310, MS 390
English / USA
Escape path
First clear the tree base and work area
from interfering limbs and brush and
clean its lower portion with an ax.
Then, establish two paths of escape (B)
and remove all obstacles. These paths
should be generally opposite to the
planned direction of the fall of the tree
(A) and about at a 45° angle. Place all
tools and equipment a safe distance
away from the tree, but not on the
escape paths.
Buttress roots
If the tree has large buttress roots, cut
into the largest buttress vertically first
(horizontally next) and remove the
resulting piece.
Gunning sight
When making the felling notch, use the
gunning sight on the shroud and housing
to check the desired direction of fall:
Position the saw so that the gunning
sight points exactly in the direction you
want the tree to fall.
Conventional cut
C =
felling notch - determines the
direction of the fall
For a conventional cut:
:
Properly place felling notch
perpendicular to the line of
fall,
close to the ground.
:
Cut down at approx. 45-degree
angle to a depth of about 1/5 to 1/4
of the trunk diameter.
:
Make second cut horizontal.
:
Remove resulting 45-degree piece.
B
001BA040 KN
A
45°
45°
B
001BA146 KN
001BA153 KN
001BA143 KN
C
C