Zenoah GZ3700EZ, Руководство оператора

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6. Do not let the tree fall onto a different standing tree.
It is dangerous to remove a caught tree and there is
a high accident risk. Refer to
To free a trapped tree
on page 22 .
WARNING:
During critical felling
operations, lift your hearing protection
immediately when the sawing is
complete. It is important that you hear
sounds and warning signals.
To clear the trunk and prepare your path of
retreat
Cut off all branches from your shoulder height and
down.
1. Cut on the pull stroke from the top down. Make sure
that the tree is between you and the product.
2. Remove undergrowth from the work area around the
tree. Remove all cut off material from the work area.
3. Do a check of the area for obstacles such as stones,
branches and holes. You must have a clear path
of retreat when the tree starts to fall. Your path of
retreat must be approximately 135 degrees away
from the felling direction.
1. The danger zone
2. The path of retreat
3. The felling direction
1
2
2
1
3
To fell a tree
Zenoah recommends you to make the directional cuts
and then use the safe corner method when you fell
a tree. The safe corner method helps you to make a
correct felling hinge and control the felling direction.
WARNING:
Do not fell trees with a
diameter that is more than two times larger
than the guide bar length. For this, you must
have special training.
The felling hinge
The most important procedure during tree felling is to
make the correct felling hinge. With a correct felling
hinge, you control the felling direction and make sure
that the felling procedure is safe.
The thickness of the felling hinge must be equal and a
minimum of 10% of the tree diameter.
WARNING:
If the felling hinge is
incorrect or too thin, you have no control of
the felling direction.
20 2218 - 004 - 31.08.2023