Stihl MS 180 C-BE Product Instruction Manual - Page 21

Making Sapwood Cuts, D =Felling Cut, E = Hinge, Warning - ms 180 chain size

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Making Sapwood Cuts D =Felling Cut E = Hinge E D English D E 001BA150 KN 001BA144 KN 001BA145 KN 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. Conventional and open-face technique: N Begin 1 to 2 inches (2,5 to 5 cm) higher than center of felling notch. N Cut horizontally towards the felling notch. N Leave approx.1/10 of diameter uncut. This is the hinge. N Do not cut through the hinge - you could lose control of the direction of the fall. Drive wedges into the felling cut where necessary to control the fall. N Helps control the falling tree. N Do not cut through the hinge - you could lose control of the direction of the fall. Warning! If the tip of the bar contacts a wedge, it may cause kickback. Wedges should be of wood or plastic - never steel, which can damage the chain. MS 170, MS 170 C, MS 180, MS 180 C 19

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MS 170, MS 170 C, MS 180, MS 180 C
English
19
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.
D =Felling Cut
Conventional and open-face technique:
N
Begin 1 to 2 inches (2,5 to 5 cm)
higher than center of felling notch.
N
Cut horizontally towards the felling
notch.
N
Leave approx.1/10 of diameter
uncut. This is the hinge.
N
Do not cut through the hinge – you
could lose control of the direction of
the fall.
Drive wedges into the felling cut where
necessary to control the fall.
E = Hinge
N
Helps control the falling tree.
N
Do not cut through the hinge – you
could lose control of the direction of
the fall.
001BA150 KN
Warning!
If the tip of the bar contacts a wedge, it
may cause kickback. Wedges should be
of wood or plastic – never steel, which
can damage the chain.
001BA144 KN
D
D
001BA145 KN
E
E