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Electric Chain Saw EN
11
When the log is supported along its entire
length as illustrated in Figure III, it is cut from
the top (overbuck).
When the log is supported on one end, as
illustrated in Figure IV, cut 1/3 the diameter
from the underside (underbuck). Then make
the finished cut by overbucking to meet the
first cut.
When the log is supported on both ends, as
illustrated in Figure V, cut 1/3 the diameter
from the top (overbuck). Then make the
finished cut by underbucking the lower 2/3 to
meet the first cut.
parallel to the horizontal notching cut. Make
the felling back cut so enough wood is left
to act as a hinge. The hinge wood keeps the
tree from twisting and falling in the wrong
direction. Do not cut through the hinge.
As the felling gets close to the hinge, the tree
should begin to fall. If there is any chance
that the tree may not fall in desired direction
or it may rock back and bind the saw chain,
stop cutting before the felling back cut is
complete and use wedges of wood, plastic or
aluminium to open the cut and drop the tree
along the desired line of fall.
When the tree begins to fall remove the chain
saw from the cut, stop the motor, put the
chain saw down, then use the retreat path
planned. Be alert for overhead limbs falling
and watch your footing.
4. Limbing a tree
Limbing is removing the branches from a
fallen tree. When limbing leave larger lower
limbs to support the log off the ground.
Remove the small limbs in one cut as
illustrated in Figure II. Branches under tension
should be cut from the bottom up to avoid
binding the chain saw.
5. Bucking a log
Bucking is cutting a log into lengths. It is
important to make sure your footing is firm
and your weight is evenly distributed on both
feet. When possible, the log should be raised
and supported by the use of limbs, logs or
chocks. Follow the simple directions for easy
cutting.
W
Y
Z
X
2”
2”
2
2/3
1
1/3
1
2
2/3
1/3
22
3
W
Y
Z
X
2”
2”
2
2/3
1
1/3
1
2
2/3
1/3
22
3
W
Y
Z
X
2”
2”
2
2/3
1
1/3
1
2
2/3
1/3
22
3
W
Y
Z
X
2”
2”
2
2/3
1
1/3
1
2
2/3
1/3
22
3
W
Y
Z
X
2”
2”
2
2/3
1
1/3
1
2
2/3
1/3
22
3