4
the load watched by other persons, with constant contact being maintained between
the observer and winch operator by means of pre-arranged signals.
17.
When cables are being used, there must be no one between the load and the cable
winch or in the danger zone between the winch, pulley and load,
see figure 2
.
18.
In the case of skidding on slopes, there must be no one below the log hitched to the
cable.
19.
When standing trees are being pulled over, the pulling cable must be hitched to the
tree before felling work is commenced. In this case the position of the skidder must
be chosen so as to ensure that the distance from the tree to be pulled over is at least
twice the height of the tree
– or the same as the height of the tree if a pulley and
indirect pulling are used,
see figure 3
. Do not stand in the danger zone when using
pulleys.
20.
The tread of the tyres on the skidder on which the winch is mounted must grip well,
i.e. lug treads with at least 40% of the tread depth of new tyres or the vehicle must be
Figure 1
Figure 2
Figure 3
(indirect pulling)
Position A
Position B
2 x height
Содержание W-4011
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