Stihl MSA 160 C Instruction Manual page 49

13 Operating the Saw
► Engage the spiked bumper and use it as a ful‐
crum.
► Guide the full width of the guide bar into the
wood and reposition the spiked bumper as
required.
► Take the weight of the chainsaw at the end of
the cut.
13.3 Delimbing
► Support the chainsaw on the log.
► With the chain running at full speed, pivot the
guide bar downward against the limb.
► Cut through the limb with the top of the guide
bar.
1
2
► If the limb is under tension: Make the relieving
cut (1) into the compression side and then per‐
form the bucking cut (2) from the tension side.
13.4 Felling
13.4.1 Determining direction of fall and
escape path
► Determine direction of fall so that the area in
which the tree falls is clear.
0458-701-9821-G
► Observe the following points when planning
escape path (B):
– Escape path (B) at an angle of 45° to direc‐
– 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
13.4.2
► Remove obstacles from work area at tree
base.
► Remove growth from tree base.
► If the tree has large, healthy buttress roots:
Make vertical cut first and then a horizontal
cut, and remove the resulting piece.
13.4.3
2
1
C Felling notch
D Hinge
tion of fall (A).
be parallel to the slope.
Preparing work area at base of tree
Basic information on felling cut
C
The felling notch determines the direction of
fall.
The hinge helps control the falling tree. The
width of the hinge is 1/10 of the trunk diame‐
ter.
English
C E
1/10
Ø
G
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