Page 20 - Petzl-catalog-pro-2018

Tree care
18

Not all tree work can be done
using exterior means such as
elevated platforms or ladders.
In this case, to move and
work, the arborist uses rope
progression techniques.

Examples of operations:
• ornamental tree trimming,
to adapt the tree to its
environment or to change
its overall aesthetic
• maintenance trimming to
remove dead wood and dying
branches
• tree removal (progressive
cutting of the trunk from the
top) if diseased or presenting a
hazard...

Technical specifics:
• access from the base of
the tree generally starts by
throwing a weighted bag with
line attached. This line is used
to install the access rope on an
anchor up in the tree
• while moving about on the
branches, the arborist keeps
his/her weight on the work
rope, for greater stability and to
reduce the potential fall distance
• when using any cutting
tool (hand saw, chainsaw),
the arborist must use two
independent belay systems

ROLLCLIP Z
The ROLLCLIP Z pulley-carabiner (TRIACT-LOCK version)
has the gate opening on the non-pulley end, to facilitate
installation on devices. It can be used to attach the ZIGZAG to
the attachment bridge on the SEQUOIA harness, for improved
lateral mobility.

Tetragon Distributors Inc.
sales@tetragon.ca www.tetragon.ca
905-828-9803