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is subject to compression, and then cut the rest of
the branch from the side that is subjected to traction
(follows). In this way it will prevent branch tension to
close cutting and block the chainsaw rod and chain.
7.6. CUTTING A TREE BRANCH
To cut a branch from a tree
which does not touch the
ground, always start with a
quarter the diameter of the
branch cut from below (1) and
then cut the rest from above (2).
This way you will facilitate the opening of cutting and
splitting the branch without damaging the tree.
7.7. PRUNING TREES AT A HEIGHT
7.7.1. GENERAL REQUIREMENTS
The operators that work with this chainsaw to prune of
trees in height should do so with a rope, harness, and
never work alone. There must always be a qualified
second worker on the ground in the event of an
emergency and rescue procedures. Between the two
people always there must be visual and verbal contact.
The operators that work with this chainsaw in the
pruning of trees should receive training concerning
safe climbing, safe positioning techniques and be
equipped with harnesses, ropes, carabineers, fastening
straps and other equipment to ensure that they are kept
in safe work positions for both operators and chainsaw.
In the working area there must be an additional set of
climbing equipment to facilitate the rescue and help the
operator in case of emergency.
7.7.2. PREPARING THE SAW FOR USE ON THE TREE
The operator on the ground is the person responsible
for checking, refilling fuel and oil, starting, heating the
chainsaw and then switching it off before handing it to
the operator who is in the tree.
Once the chainsaw is heated, the operator on the
ground will switch off the chainsaw, hook a chainsaw
sling such as the one seen below in point A in the
anchor point of the saw, using a locking carabiner and
will then hook a rope to point C to hoist the chainsaw
by a second carabiner.
The operator, from a stable and secure position in the
tree, will hoist the chainsaw by pulling the cord. Once
the operator has the chainsaw, he will hook the harness
through the ring (B) and verify that the chainsaw is
firmly attached to the harness.
It will then release the rope used to hoist the machine
and hook the end (C) to his safety harness.
Secure the chainsaw only to recommended attachment
points of the harness. These can be in the Centre (front
and back) or to edges. Wherever possible, the saw in
the rear focal point will engage to move the chainsaw
away from the lines of ascent and so that the weight of
this applies centrally below the operator’s spine.
A
C
B
Summary of Contents for Pro Series 08337
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