ATD ArboTeamDevice
5
1.3.
Glossary and terminology
Some words used frequently in this manual are described here to be sure that their
meaning is defined and understood clearly .
Explanation of the technical terms used in this manual
ALUMINIUM CYLINDER BRAKE:
used
to lower the cut pieces;
WINCH:
manually operated component used to lift the cut pieces;
SELF TAILER:
component positioned
at the end of the winch that allows to maintain the
tension on the rope wound around the drum;
ROPE GUIDE (SX, DX):
steel rope guide to direct the ropes with the right angle on the
aluminium cylinder brake;
ROPE GUIDE HOOK (SX,DX, CENTRAL)
:it allows to deviate the ropes so that the
ground operator can choose the most secure position during the lowering operations;
RIGGING:
lifting or lowering operations of the cut pieces of timber with the aid of cylinder
brakes, ropes and pulleys;
BLOCKS
:
pulleys specifically designed for rigging operations during controlled felling;
TREECLIMBER
or
elevating work platform operator (EWP)
both must have adequate
training and qualification
;
SLING :
rope-length with a loop at one end and which normally holds a Block or a
connector or a ring;
LOWERING:
the controlled descent of a cut piece of tree;
STOPPER:
component
for the temporary locking of a rope; the stopper can be opened and
closed with the rope pulled tight (but not moving) ;
GROUND OPERATOR
:
the person on the ground who controls the ropes during the
controlled felling - rigging;
The
ground operator
must have adequate training.
