Stihl MS 193 C-E Product Instruction Manual - Page 23

Conventional Cut, Open-face Technique, Making Sapwood Cuts

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Conventional Cut C Open-face Technique Making Sapwood Cuts English C 001BA143 KN 001BA150 KN Felling notch (C) - determines the direction of the fall For a conventional cut: N Properly place felling notch perpendicular to the line of fall, close to the ground. N Cut down at approx. 45° angle to a depth of about 1/5 to 1/4 of the trunk diameter. N Make second cut horizontal. N Remove resulting 45° piece. Felling notch (C) - determines the direction of the fall For an open-face cut: N Properly place felling notch perpendicular to the line of fall, close to the ground. N Cut down at approx. 50° angle to a depth of approx.1/5 to 1/4 of the trunk diameter. N Make second cut from below at approx. 40 degree angle. N Remove resulting 90° piece. N For medium sized or larger trees make cuts at both sides of the trunk, at same height as subsequent felling cut. N Cut to no more than width of guide bar. This is especially important in softwood in summer - it helps prevent sapwood splintering when the tree falls. MS 193 C 21

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MS 193 C
English
21
Conventional Cut
Felling notch (C) – determines the
direction of the fall
For a conventional cut:
N
Properly place felling notch
perpendicular to the line of fall,
close to the ground.
N
Cut down at approx. 45° angle to a
depth of about 1/5 to 1/4 of the trunk
diameter.
N
Make second cut horizontal.
N
Remove resulting 45° piece.
Open-face Technique
Felling notch (C) – determines the
direction of the fall
For an open-face cut:
N
Properly place felling notch
perpendicular to the line of fall,
close to the ground.
N
Cut down at approx. 50° angle to a
depth of approx.1/5 to 1/4 of the
trunk diameter.
N
Make second cut from below at
approx. 40 degree angle.
N
Remove resulting 90° piece.
Making Sapwood Cuts
N
For medium sized or larger trees
make cuts at both sides of the trunk,
at same height as subsequent
felling cut.
N
Cut to no more than width of guide
bar.
This is especially important in softwood
in summer – it helps prevent sapwood
splintering when the tree falls.
001BA143 KN
C
C
001BA150 KN