Tractel Travspring Manuel D'installation, D'emploi Et D'entretien page 60

"Important"": The axis of the moored strand of the
cable must always be centered on the anchoring axis
as shown in Figure 25, page 13.
GB
"Important": The protruding length of the free
strand must be at least 100 mm
1. A unit
2. A corner
3. A mooring axis
4. Corner of retaining wire
5. Opening for inserting and withdrawing the cable
6. Split ring
7. Loop
8. Moored strand
9. Free strand
10. Protective cap
11. Connector lock nut
12. Sleeved end
6.10.3. Installing a single INRS shock absorber on
the lifeline
Installation sleeved loop side
The following installation procedure refers to figure 23,
page 12.
a) Insert the sleeved end of the cable (item 12) inside
the quick link connector (figure 1/2, item J) in situ on
the end anchor (figure 2, item A).
b) Tighten the connector lock nut (item 11) and fully
tighten using an open ended spanner.
Installation complete.
Installation on the anchors
Follow the installation procedure in Section 6.9.2.
Installing the side corner unit
Follow Section 6.10.2 installation procedure
Tensioning the lifeline (section 6.11) is carried out using
either the lifeline's tensioner, if equipped, or a " Tirvit™
" cable tensioner. Use a dynamometer to check that the
tension force is not more than 100 daN.
6.11. Cable tension adjustment
6.11.1. General information
Adjusting the tension of the travspring™, travspring™
One or travsmart lifelines must be carried out in three
stages:
• Step 1: Pre-tension the cable using a "Tirvit™" cable
tensioner, especially in the case of extra long
lifelines (> 30m).
• Step 2: Recovery of slack cable using the corner unit.
• Step 3: Tensioning the lifeline.
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6.11.2. Tension using a load indicator and
tensioner
• Step 1: Pre-tensioning the cable
a� Using a dynamometer moor Tirvit™ to an anchor
placed on the axis of the lifeline and with a minimum
breaking strength of 300 daN.
b. Place Tirvit™, jaws locked, on the lifeline cable.
c. Pretension the lifeline by operating the Tirvit™ lever
to reach a load of between 80 and 100 daN.
d. Gently shake the cable between each lifeline
support starting with the furthest to the nearest to
the Tirvit™ in order to balance out tension.
e� Re-tension the lifeline to achieve a line tension of
between 80 to 100 daN.
Previously tensioned cable.
• Step 2: Cable slack recovery
f� Manually tension the cable by simultaneously
pushing the anchored strand (figure 24, item 8)
and excersing traction on the free end (figure 24,
item 9).
g� By pulling firmly on the anchored strand (figure 24,
item 8) check that the cable is effectively jammed
in the unit.
Slack cable recovery completed.
• Step 3: Tensioning the travspring™, travspring™ One
or travsmart lifeline and sealing the tensioner.
The following powering up procedure as seen in
figure 25, page 13:
a� Turn the tensioner body (item 2) in order to replace
the two half-screeds (item 1) inside the tensioner
body. Carry on using a rod (screwdriver, etc.)
inserted into the hole in the body of the tensioner
(indicator 7).
b. Tension the two holes in the powering up indicator
(item 8) until they are opposite each other.
"Important": Once hole alignment is achieved,
immediately stop the operation as a power surge would
activate the shock absorber or the end or corner
anchors, depending on the case, which would then
have to be replaced.
c. Tighten the two lock nuts (item 3) located on the
body (item 2) and tighten using two 21 flat spanners.
d. First thread the sealing wire (item 9) through one of
the two half-screeds (item 1), then the hole in the
body (item 7), followed by the second half-screed
(item 1), then thread the 2 ends of the sealing
wire (item 9) inside the holes in the sealing disc
(item 10).
e� After lightly tightening the sealing wire (item 9),
crimp the sealing disc using the sealing clamp.
f� Check that the two ends of the sealing wire are
correctly crimped by pulling on them gently.