Stiga SPR 276 Gebrauchsanweisung Seite 198

necessary precautions to prevent the machine
from coming into contact with the ground.
6.7 FOR PRUNING HIGH UP USING A
ROPE AND A BELT HARNESS
IMPORTANT This chapter describes the
work procedures implemented to reduce
the risk of injuries when using chainsaws
for trimming and performing height work
aided by a rope and belt harness.
This is not intended to replace formal
training on the subject. The guidelines
provided in this appendix are only examples
of best practice. National laws and
regulations must always be observed.
6.7.1 Using the chainsaw with two hands
Using the chainsaw with two hands allows you to:
– maintain a firm grip on the chainsaw
in the event of a kickback;
– maintain a level of control over the
chainsaw that decreases the probability
of it coming into contact with the
ropes and the operator's body;
– adopt a safe work position to avoid any
loss of control that could lead to contact
with the chainsaw (unintentional movement
while the chainsaw is running).
In order to be able to grip the chainsaw
with both hands, as a general rule, the
operator must always try to maintain a
safe position when using the chainsaw:
– at hip level when cutting horizontally or
– at a solar plexus level when
cutting vertically.
• When the operator is working close to
vertical trunks, with reduced lateral force
on the working position, stable support is
sufficient to maintain a safe working position.
• When the operator moves away from the
trunk, the lateral forces increase and it
is necessary to eliminate or offset them
using one of the following methods:
– add an additional fastening point
for the main rope to stabilise it;
– use a flat strap with end slots adjustable
from the harness fastened to an
additional fastening point (Fig. 28);
• Use of a temporary foot stirrup, created by
a ring belt, can make it easier to achieve
a stable working position (Fig. 29).
6.7.2 Using the chainsaw with one hand
Do not work with one hand if you
are in an unstable working position or
when using a chainsaw instead of a
handsaw to cut small sized branches.
The chainsaw must be used
with one hand only when:
• the operator is not able to reach a working
position that allows him to use both hands,
• the operator needs to use one hand to
support himself in the working position,
• the cutting involves extension of the operator's
upper limb beyond his own body line (Fig. 30).
The operator must never:
• perform cutting operations with the
kickback area corresponding with
the point of the chainsaw bar;
• "hold and cut" sections;
• attempt to catch falling sections.
6.8 ADVICE FOR OPERATION
NOTE Avoid using the machine at full
power for the first 6- 8 working hours.
IMPORTANT Stop the machine (par.
6.6) when moving between work areas.
Stop the machine immediately
if the chain stops during sawing.
If the chainsaw should get stuck during
pruning high up (using a rope and a
belt harness), the operator must:
1. stop the machine immediately;
2. fasten it securely to the part of the branch
between the trunk and the cut section
or to a rope not attached to the tool;
3. pull the chainsaw out from the cut,
lifting the branch where necessary;
4. if necessary, use a handsaw or second
chainsaw to free the trapped chainsaw,
cutting at a minimum distance of 30 cm from
the trapped chainsaw. Cutting operations to
free the chainsaw must always be performed
towards the end of the branch, (i.e. between
the trapped chainsaw and the end of the
branch and not between the trunk and the
trapped chainsaw). This will prevent the
chainsaw from being dragged by the part
of the branch that is cut away, which would
complicate the situation even further.
EN - 13