Stihl MSA 200 C Instruction Manual page 61

Preparing work area at base of tree
First clear the tree base and work
–
area from interfering limbs and
brush to provide a secure footing.
Clean lower portion of tree base
–
(e.g. with an axe) – sand, stones
and other foreign objects will dull the
saw chain.
Make the vertical cut first, then the
–
horizontal – but only if the wood is
sound
Making felling notch
There are several approved methods for
making the felling notch – observe
country-specific regulations on felling
techniques.
MSA 200 C
C
C
The felling notch (C) determines the
direction of fall.
STIHL recommends the following
method:
Make the horizontal cut – check the
N
direction of fall with the gunning
sight.
Make angle cut at about 45°.
N
Check the felling notch and correct it
N
if necessary.
Important:
Felling notch at a right angle to the
–
planned direction of fall.
As close to the ground as possible.
–
Cut to a depth of about 1/5 to 1/3 of
–
the trunk diameter.
Sapwood cuts
Sapwood cuts in long-fibered softwood
help prevent sapwood splintering when
the tree falls. Make cuts at both sides of
the trunk at same height as bottom of
felling notch to a depth of about 1/10 of
trunk diameter. On large diameter trees,
cut to no more than width of guide bar.
Do not make sapwood cuts if wood is
diseased.
English
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