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Limbing and Bucking |
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Limbing is
cutting branches off of felled or standing trees. Bucking is sawing felled trees into
sections called logs. The length of the logs is dependent on the species of the tree and
type of final product.
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As a tree falls it will often
brush other trees and leaves broken live limbs or dead limbs hanging in surrounding trees.
Sometimes falling trees will shoot off the stump and roll sideways or ahead
creating pressures on tree limbs. Loggers should never limb a tree immediately after
felling. It is often a good idea to drop several trees and then refuel the saw
prior to limbing. This will provide more time for overhead hazards to come down.
Prior to limbing, loggers should
evaluate five potential hazards as follows:
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Highlights of Limbing
and Bucking Requirements
- Limbing and Bucking must be done on the uphill side of each tree or log, where rolling
or sliding of logs may be expected.
- Precautions, such as moving to a
stable position, must be taken to prevent the logs or the butt from striking employees
while limbing and bucking trees.
Top Bind
Arrows indicate saw travel direction
and cross-hatching indicates the heartwood that will break. Depending upon the soundness
of the wood and the timber lie, it may be advantageous to use the end of the bar and bore
from point (C) in making cuts number (1) and number (3)
if it appears there could be a danger of the log slabbing.
NOTE: A wedge section could be removed when sawing cut (2) if the top
bind is excessive, to allow the tree cut to close as cuts (4) and (5)
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Bottom Bind
Cuts are similar to those for top bind, except
top and bottom cuts are reversed. |
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Additional Limbing and Bucking
information:
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Continue
with Lesson 5
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