Proline 46750, Руководство пользователя, Страница: 4 / 44

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Do not load tie down straps more than indicated on the label. order to prevent accidental falling and/or tilting of the load.
This applies as well when using tensioning devices that allow
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Do not use the tie down strap in the case of visible signs of
controlled removal.
damage or wear of the webbing, tensioning device, or fittings.
ź Before attempting to unload a unit of load, its tie down straps
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When using tie down straps, control their condition on a
shall be released so that it can be lifted freely from the load
regular basis for any defects or damage that may impact
platform.
safety of use.
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During loading and unloading, attention has to be paid to
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The tie down strap may become loose. Check tensioning
proximity of any low overhead power lines.
periodically during transport.
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The materials from which tie down straps are manufactured
ź Webbing must not be twisted or pinched by the load and
have a selective resistance to chemical attack.
tension must be distributed over its whole width.
ź Seek the advice of the manufacturer or supplier if exposure to
Information for use and maintenance of tie down straps :
chemicals is anticipated.
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When planning for load lashing, determine the number and
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It should be noted that the effects of chemicals may increase
type of tie down straps to be used. The manner of lashing
with rising temperature. The resistance of man-made fibres to
should be selected after considering properties of the load, its
chemicals is summarised below.
type, size, shape, mass, friction coefficient between the load
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Polyamides are virtually immune to the effects of alkalis.
and floor and lashing method (diagonal lashing, frictional
However, they are attacked by mineral acids. Polyester is
lashing, and lock). Take LC lashing capacity the tie down strap
resistant to mineral acids but is attacked by alkalis.
can sustain, pretension of the webbing, and tie down strap
Polypropylene is little affected by acids and alkalis and is
angle into consideration. For stability reasons free-standing
suitable for applications where high resistance to chemicals
units of load have to be secured with a minimum of one pair of
(other than certain organic solvents) is required.
tie down straps for frictional lashing and two pairs of tie down
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Solutions of acids or alkalis which are harmless may become
straps for diagonal lashing.
sufficiently concentrated by evaporation to cause damage.
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The selected tie down straps shall both be strong enough and
Take contaminated webbings out of service at once,
of the correct length for the mode of use.
thoroughly soak them in cold water, and dry naturally.
Basic lashing rules:
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Tie down straps complying with this Part of EN 12195 are
– Plan the fitting and removal operations of lashing before
suitable for use in the following temperature ranges:
starting a journey;
–40°C to + 80°C for polypropylene (PP);
– Keep in mind that during journeys, parts of the load may have
–40°C to + 100°C for polyamide (PA);
to be unloaded;
–40°C to + 120°C for polyester (PES).
– Calculate the number of tie down straps according to EN
These ranges may vary in a chemical environment. In that case
12195-1:2010 .
the advice of the manufacturer or supplier shall be sought.
– Only those web lashings designed for frictional lashing with S
TF
Changing the environmental temperature during transport
on the label are to be used for frictional lashing;
may affect the forces in the tie down straps. Check the tension
– Check the tension force periodically, especially shortly after
force after entering warm areas.
starting the journey.
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Tie down straps shall be rejected or returned to the
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Because of different behaviour and elongation under load
manufacturer for repair if they show any signs of damage.
conditions, different lashing equipment (e.g. lashing chain
The following criteria are considered to be signs of
and tie down straps) shall not be used to lash the same load.
damage:
Consideration shall also be given to ancillary fittings
– Only tie down straps bearing identification labels shall be
(components) and tensioning devices in the load restraint
repaired;
assembly being compatible with the tie down strap.
– If there is any accidental contact with chemical products, a tie
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During use, flat hooks shall engage over the complete width
down strap shall be removed from service and the manufacturer
of the bearing surface of the hook.
or supplier shall be consulted;
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Release of the tie down strap: Care should be taken to ensure
– For tie down straps (to be rejected): tears, cuts, nicks and
that the stability of the load is independent of the lashing
breaks in load bearing fibres and retaining stitches; deformations equipment and that the release of the tie down strap shall not
resulting from exposure to heat;
cause the load to fall off the vehicle, thus endangering the
personnel. If necessary, attach lifting equipment for further
– For end fittings and tensioning devices (to be rejected):
transport to the load before releasing the tensioning device in deformations, splits, pronounced signs of wear, signs of corrosion.