ATD ArboTeamDevice
13
Caution :
E
ven before installing the ATD, it is necessary to perform a thorough inspection of the tree
in order to identify any structural defects that could compromise the safety of the tree
felling or pruning (internal cavities, wood degraded by fungal attacks, cracks, damage to
root system, etc).
The surface of the tree where the straps and the steel frame are meant to be put up must
be free of any object that could affect the proper functioning of the ATD (i.e. climbing
plants, branches, objects
,
nails, etc)
If in doubt, do not proceed with the installation until you have studied in depth the problem
.
Plan the
tree climber's tasks so as to install the ATD creating a safety zone on the ground.
For safety zone understand the space which is not affected by the lowering of the pieces,
where the ground operator can operate the ropes without having suspended loads above
himself, and having a full view of the climber's work and of the landing space.
Steep angles with the ground where the ground operator will work can deviate the rigging
rope in the hooks with the risk of it coming out.