Bedienungsanleitung Stiga SPR 255 (Seite 33 von 508) (Alle Sprachen)

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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 rst time, make sure:

– you have been specically trained to use this type of

equipment;

– you have carefully read the safety regulations and user

instructions contained in this manual;

– you practise rst 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-

nicant information and are marked with various levels of

highlighting with the following meaning:

NOTE

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!

Non-observance will re sult in

the risk of injury to oneself or others.

DANGER!

Non-observance 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 du ce 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 ning 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 pria te 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 quipped with harnesses,

ropes, strops, karabiners and other equipment for main-

taining se cu re 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 tted with a

suitable strop for atta ching to the op-

erator’s harness:

a) choke the strop around

the attachment point on

the rear of the saw (A);

b) provide 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) ensure the saw is securely attached when it is being

sent up to the operator;

d) ensure 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.

SAFETY REQUIREMENTS 7

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