Mitox CS260TX, Руководство оператора

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CS260TX PREMIUM Chainsaw
27
Original Instructions Version November 16
CS260TX_141116
Working with tree service chain-saws from rope and harness
1. Overview
This chapter sets out working practices aimed at reducing the risk of injury from tree service chain-
saws when working at height from a rope and harness. While it may form the basis of guidance
and training literature, it should not be regarded as a substitute for formal training. The guidance
given in this annex is only an example of best working practice. National laws and regulations
should always be followed.
It presents
- General requirements that should be met before using a tree service chain-saw for work at height
from a rope and harness,
- Preparations for using a tree service chain-saw from a rope and harness, and
- Use of a tree service chain-saw for pruning and dismantling, including secure work positioning for
two-handed use, starting the chain-saw, cutting with the chain-saw, restrictions on one-handed use
and freeing a trapped saw.
2. General requirements
Operators of tree service chain-saws working at height from a rope and harness should never work
alone. A ground worker trained in appropriate emergency procedures should assist them.
Operators of tree service chain-saws for this work should be trained in general safe climbing and
work positioning techniques and be properly equipped with harnesses, ropes, strops, carabiners
and other equipment for maintaining secure and safe working positions for both themselves and
the saw.
3. Preparing to use the saw in the tree
The chain-saw should be checked, fuelled, started and warmed up by the ground worker and then
switched off before it is sent up to the operator in the tree.
The chain-saw should be fitted with a suitable strop for attachment to the operator’s harness (see
Figure B.1):
a) Secure the strop around the attachment point on the rear of the saw;
b) Provide suitable carabiners to allow indirect (i.e. via the strop) and direct attachment (i.e. at the
attachment point on the saw) of the saw to the operator’s harness;
c) Ensure the saw is securely attached when it is being sent up to the operator;
d) Ensure the saw is secured to the harness before it is disconnected from the means of ascent.