ATD ArboTeamDevice
24
Caution
The ground operator must have received proper training for controlled felling with the use
of
aluminium cylinder brakes and winches.
Caution
No one, including the ground operator, may remain in the lowering and rope manoeuvres
zone .
The ground operator must never wrap the rope around himself or around other tools other
than the aluminium cylinder brake
or the ATD winch.
The rigging rope must be operated by a single operator.
The rope must be free of knots and neatly arranged on the ground in an completely clear
area (free of all objects such as branches, tools,
protruding roots or anything that might
prevent the rope from sliding smoothly, etc
.)
It is good practice not to exceed with the size of the pieces to lower
5.4 Combined use of winch and
aluminium cylinder brake
In certain situations you can use two ropes at the same time :
one
mounted on the winch to lift – hold - lower, the other one mounted on aluminium
cylinder brake for the lowering.
Caution
The combined load of both ropes must not exceed 2000 kg
Take advantage of every possible technique that prevents the ropes rubbing (deviations
with pulleys or connectors).
Put away
one of the two ropes
inside a bag or container so as to facilitate operations .
In the combined use, the rope on the aluminium cylinder brake must enter the
the rope
guide to
the left.
I
t is recommended to have a ground operator for each rope.
