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Cabling
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TOP LEFT:
7-strand tree cable
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THE
EQUIPMENT
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TOP RIGHT:
heavy canvas
equipment bag
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LEFT:
open-end wrenches
pliers/wire cutters
lag screw
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RIGHT:
drill bits
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HARDWARE (left
to right):
4 drop-forged eye bolts
2 threaded stock
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BOTTOM RIGHT:
drill motor
(gas engine)
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Cabling is a means of providing additonal
support within a tree. It is NOT sole support.
A qualified arborist should always be chosen to
determine if cabling is appropriate and what the
limitations are. The arborist will also determine
the type of cabling system,
location of installation, and appropriate cable
size. Once this is established, it becomes the
task of the climber to install. The climber (left)
begins by drilling a hole all the way thru the
trunk or leader. This hole will be 1/16 inch larger
than the bolt that will go thru it. The eyebolt
is drop-forged. This means it is all one solid
piece, not rolled. A drop-forged eyebolt is significantly
stronger and will not come apart like an eyebolt
found at a hardware store.
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After drilling the hole, the
climber (left) inserts the drop-forged eyebolt thru
the hole. He then (right) installs an over-sized
washer and nut. The over-sized washer keeps the
eyebolt from pulling thru the hole when under tension.
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Once the eyebolt is secured, he then installs
a thimble (left). The purpose of the thimble is
to keep the cable from having a sharp bend which
would eventually lead to breaking. To the right,
the climber threads the 7-strand cable thru the
eyebolt and around the thimble. He then seperates
the strands and individually wraps one strand
at a time back on the cable itself. The strands
are wrapped hand-over-hand until all strands are
used.
Another cable, called HTS
(high tension steel) may also
be installed using tree-grips. We use this also,
but it is not
shown or discussed here.
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The finished product is a
strong cable with
a secure grip. This process is continued
on the other leaders until the cable
system
is installed. As the tree grows in diameter,
it will envelope the eyebolt becoming stronger.
The cable should be inspected every five years by
a qualified arborist.
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At
Homestead Tree Service, we have the qualified people to
evaluate and install your CABLING needs.
Call (619) 443-1775 today for an estimate to cable or
an evaluation of your present system.
Call For Free Estimates
(619)
443-1775
Fax (619) 443-3324
home, services,
pruning, cabling,
removal, stump
removal, root
pruning & barriers,
qualifications, free mulch, wood, historical trees
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