Makita EA7900P Operator's And Safety Manual page 13

1
2
2
= cutting down area
When felling, maintain a distance of at least 2 1/2 tree
lengths from the nearest person (see fig. 17).
Note:
The noise of your engine may drown any warning call.
Felling instructions:
First clear the tree base and work area from inter -fering
limbs and brush and clean its lower portion an axe (see
fig. 18).
Plan your work, ensuring an obstacle-free work area and,
in the case of felling, have at least one escape path from
the falling tree prepared in advance.
Then, establish a path of escape and remove all obstacles.
This path should be opposite to the planned direction of
the fall of the tree and at a 45° angle (fig. 19).
An alternate path must also be selected. Place all tools
and equipment a safe distance away from the tree, but
not on the escape path.
45°
45°
17
18
45°
19
First cut
If the tree has large buttress roots, cut into the largest
buttresses vertically first (horizontally next) and re move
(fig. 20).
Felling cut
1/10∅
1 1 / (4cm)
"
2
Felling notch
Then, determine the placement of the felling notch (fig.
21). The felling notch when properly placed determines
the direction in which the tree will fall. It is made perpen-
dicular to the line of fall and should be as close to the
ground as possible.
Cut the felling notch to a depth of about one-fifth to one-
fourth of the trunk diameter (fig. 22). It should be in no case
higher than it is deep. Make the felling notch very care-
fully.
Second cut
20
Direction of fall
21
Hinge
Felling notch
1/5∅
22
Hinge
23
13