Stihl Msa 200 c, Instruction Manual

Page: 61 / 352

MSA 200 C
English
59
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.
The felling notch (C) determines the
direction of fall.
STIHL recommends the following
method:
N
Make the horizontal cut – check the
direction of fall with the gunning
sight.
N
Make angle cut at about 45°.
N
Check the felling notch and correct it
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.
001BA146 KN
001BA143 KN
C
C
001BA150 KN