Truper PRETUL MOT-4520P Manual Del Usuario página 39

Felling and Bucking
Cutting Anchor Roots
• Anchor roots are those that stick out too much from the
trunk above the ground. When these roots are too big can
make felling a tree very difficult. The anchor roots need to
be removed before felling the tree.
• First, make a horizontal cut through the roots, a couple
of centimeter from the ground.
• Then, make a vertical cut downwards and leveled to the
trunk to separate the root without trapping the chain bar.
CAUTION
• It is important to make the cuts in
the previously mentioned order to prevent a piece of
residual wood lean on the chain bar and trap it or shoot it
with force into an undetermined direction.
Bucking
• Bucking is the tree trunk cutting after being felled.
• When bucking always cut one trunk at a time.
• Support small trunks onto a saw horse or between two
bigger trunks put together to cut.
WARNING
• If in the bucking area the ground is
not leveled, stand always in the highest level while cutting
to prevent the cut parts rolling upon you.
WARNING
• Stay alert at all moments.
Sometimes is hard to predict the direction the trunks will
take once being cut. It is not possible to always prevent
the chain bar get trapped by the trunks.
Bucking with a Wedge
• On very thick trunks is advisable to insert wedges into
the cut to prevent the chain bar getting trapped in the
trunk when it sits into place while being cut.
• - If the trunk diameter is too big disassemble the
anti-kickback guard from the chain bar nose to insert it
into the cut without removing the wedges and continue
the job.
WARNING
• Install back the anti-kickback guard as
soon as finishing the cut.
Bucking Trunks Under Pressure
• Make first a 1/3 deep cut with regards to the trunk diameter. Finish with a second 2/3 deep cut in the opposite side. Se the
diagram to determine where to make the first cut preventing the chain bar gets trapped by the trunk when binding due to its
own weight.
Load
Residual Part
(Anchor Root)
First Cut
Saw
Horse
Wedge
Load
15
ENGLISH