Kapitelüberschrift
33
Look out for destroyed or decayed parts of the tree.
If the trunk is decayed, it can suddenly break and fall on you. Make sure there is suffi-
cient space for the falling tree. Keep a distance of 2½ tree lengths to the next person
or other objects. The sound of the motor can drown out warning cries.
Remove dirt, stones, loose bark, nails, brackets and wire from the sawing area.
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Ensure you have a free escape route (Fig. A)
Position 1: Escape route
Position 2: Falling direction of the tree
Clearing large trees is only permitted with corresponding training
(20 cm diameter and up)
The undercutting method is used for felling large trees. For this, a wedge is cut out
from the side of the tree according to the required falling direction. After the drop-
ping cut has been made on the other side of the tree, it will fall in the direction of the
wedge cut.
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NOTICE
If the tree has large prop/buttress roots, these should be removed before the wedge
is cut. If the saw is used for removing the prop/buttress roots, the saw-chain should
not touch the ground so the chain does not become blunt.
Undercut and felling the tree (Fig. B-C)
For the undercut, first cut the upper part (Pos. 1) of the wedge (Pos. 2). Cut 1/3 of the
way into the tree. Then saw the lower part (Pos. 3) of the wedge (Pos. 2). Now remove
the wedge you have cut out.
Afterwards, you can carry out the dropping cut on the opposite side of the tree (Fig.
4). For this, start about 5 cm above the middle of the cut. In this way, there is enough
wood between the dropping cut (Pos. 4) and the wedge (Pos. 2) so that it functions
as a hinge. This hinge is designed to guide the tree in the right direction when falling.
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NOTICE
Before completing the dropping cut, if required, increase the cut using wedges to
control the direction of the fall. Exclusively use wood or plastic wedges. Steel or iron
wedges can cause kickback and damage to the device.
Operating instructions
Summary of Contents for 25CC
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