SAFETY REQUIREMENTS
H) CHAIN-SAW OPERATING TECHNIQUES
Always observe the safety regulations and use the most
suitable sawing techniques.
J) RECOMMENDATION
FOR THE FIRST-TIME USERS
Before felling or delimbing for the first time, make sure:
– y ou have been specifically trained to use this type of
equipment;
– y ou have carefully read the safety regulations and user
instructions contained in this manual;
– y ou practise first on logs on the ground or attached to
trestles, in order to get familiar with the machine and the
most suitable cutting techniques.
K) HOW TO READ THE MANUAL
Certain paragraphs in the manual contain particularly sig-
nificant information and are marked with various levels of
highlighting with the following meaning:
NOTE
or
IMPORTANT
These give details or further infor
mation on what has already been indicated, and aim to
prevent both damage to the machine, and the machine
from causing damage.
WARNING!
Nonobservance will re sult in
the risk of injury to oneself or others.
DANGER!
Nonobservance will re sult in
the risk of serious injury or death to oneself or oth
ers.
3.1 WORKING WITH TREE SERVICE CHAIN-SAWS
FROM A ROPE AND HARNESS
This chapter sets out working practices to re d u c e the risk
of injury from tree service chainsaws when working at
height from a rope and harness.
While it may form the basis of guidance and trai n ing litera-
ture, it should not be regarded as a sub stitute for formal
training.
General requirements working at height
Operators of tree service chainsaws working at height
from a rope and harness should never work alone.
A competent ground worker trained in appro p ria t e emer-
gency procedures should assist them.
Operators of tree service chainsaws for this work should
be trained in general safe climbing and work positioning
techniques and shall properly e q uipped with harnesses,
ropes, strops, karabiners and other equipment for main-
taining se c u r e and safe working positions for both them-
selves and the saw.
Preparing to use the saw in the tree
The chainsaw should checked, fuelled,
started and warmed up by the ground
worker before it is sent up to the opera-
tor in the tree.
The chainsaw should be fitted with a
suitable strop for atta ching to the op-
erator's harness:
a) c hoke the strop around
the attachment point on
the rear of the saw (A);
b) p rovide suitable karabiners to allow indirect (i.e. via
the strop) and direct attachment (i.e. at the attachment
point on the saw) of saw to the operators harness;
c) e nsure the saw is securely attached when it is being
sent up to the operator;
d) e nsure the saw it secured to the harness before it is
disconnected from the means of a scent.
The saw should only be attached to the recommended
attachment points on the harness. These may be at mid-
point (front or rear) or at the sides.
Where possible attaching the saw to centre rear mid-point
will keep it clear of climbing lines and support its weight
centrally down the operator's spine.
When moving the saw from any attachment point to an-
other, operators should ensure it is se cured in the new
position before releasing it from the previous attachment
point.
These can be found on the mi-
dpoint (front or rear) or on the si-
des.
When possible, fasten the chain-
saw to the rear central midpoint to
prevent it from interfering with the
climbing ropes and make sure it
supports the operator's weight in
the middle, toward the bottom of
the operator's spinal cord.
When moving the chain-saw from one fastening point to
another, it is advisable that operators are sure they are
fastened to a new position before unfastening from the
previous fastening point.
Using the chainsaw in the tree
An analysis of accidents with these saws during tree serv-
ice operations shows the primary cause as being inappro-
priate one-handed use of the saw. In the vast majority of
accidents, operators fail to adopt a secure work position
witch allows them to hold both handles of the saw.
31
EN