Instruction Manual

► If the limb is under tension: Make the relieving
cut (1) at the compression side and then per‐
form bucking cut (2) from the tension side.
10.4 Felling
10.4.1 Determining direction of fall and
escape path
► Determine direction of fall so that the area in
which the tree falls is clear.
B
B
0000-GXX-1246-A0
► Observe the following points when planning
escape path (B):
–
Escape path (B) at an angle of 45° to direc‐
tion of fall (A).
–
No obstacles on the escape path (B).
–
The top of the tree can be observed.
–
If the escape path (B) is on a slope, it must
be parallel to the slope.
10.4.2 Preparing work area at base of tree
► Remove obstacles from work area at tree
base.
► Remove growth from tree base.
0000-GXX-1247-A0
► If the tree has large, healthy buttress roots:
Make vertical cut first and then a horizontal
cut, and remove the resulting piece.
10.4.3 Cutting the felling notch
The felling notch determines the direction in
which the tree falls. Country-specific standards
for making the felling notch must be observed.
0000-GXX-1249-A0
► Position the saw so that the felling notch is an
right angles to the direction of fall and the saw
is close to the ground.
► Make the horizontal cut.
► Make the angle cut at 45° to the horizontal cut.
0000-GXX-1250-A1
► If the wood is sound and long-fibered:
Observe the following points when making
sapwood cuts:
–
The cuts must be the same at both sides.
–
The cuts must be at same height as bottom
of felling notch.
–
The width of the cuts is 1/10 of the trunk
diameter.
The trunk does not splinter when the tree falls.
10.4.4 Basic information on felling cut
Ø
1/10
0000-GXX-1251-A1
C
C
E
G
C Felling notch
The felling notch determines the direction of
fall.
D Hinge
The hinge helps control the falling tree. The
width of the hinge is 1/10 of the trunk diame‐
ter.
10 Operating the Saw English
0458-729-0121-B 15