Residual Risks; Procedures For Accidents/ Malfunctions; Spare Parts; Transport And Storage - Pfeifer HIT GK 8 Traduction De La Notice D'utilisation Originale

9. Residual risks

DANGER: First and foremost, residual risks
result from ignoring this operating manual
or standard attachment techniques. Therefo-
re it is absolutely necessary that only trained
personnel evaluate and perform lifting proce-
dures. Overloading caused by failure to
observe the maximum working load limit or
by unreduced working load limit due to the
influence of temperature, asymmetry, edge
or joint load can also lead to failure of the
chain sling as does the use of the wrong
spare parts, exceeding the permissible angle
of inclination, severe oscillations with a high
load or the use of unexamined, twisted or
knotted chains. This can lead to failure of the
chain sling and cause the load to fall down,
which involves direct or indirect danger for
life or health of the persons who are in the
danger area of lifting devices.
When using four-leg chain slings to lift a rigid load, the
greatest mass portion might be held only by three or
even two legs (cf. DGUV rule 109-017). The remaining
individual legs only stabilise the load. This is the case
when the chain legs have not been correctly shortened,
are not equal in length and/or the attachment points are
not arranged precisely (asymmetrical load distribution).
In this case there is also a risk of overloading or
breakage.
In the case of multiple-leg attachment, horizontal force
components occur alongside the load in the strands.
These act on the load and increase with increasing
angle of inclination. This can lead to damage/breakage
of the load or the attachment points. Therefore, always
ensure that the load can withstand the forces.
When the centre of gravity of the load is above the
attachment points, the load can become unstable and
tip over. This risk increases further with angles of
inclination below 15° and when the load swings.
Chain slings 12/2021 / Subject to change!
12
10. Procedures for accidents/
malfunctions
DANGER: After an accident or an excep-
tional event – e. g. accidents, overheating,
overloading, collision, exposure to acids
or chemicals – the chain sling should be
decommissioned. Make sure that no da-
mage to the load or harm to humans can
occur removing the chain sling, for instance
if the load was set down in an unstable
manner and could fall over. If necessary,
attach an additional chain sling before
removing. After that, remove the chain and
give it to a qualified person for examination.

11. Spare parts

Spare parts may only be exchanged by qualified persons
with the necessary knowledge and skills. Only PFEIFER
spare parts may be used. Only use new bolts, adapter
sleeves and other safety elements. If you have any ques-
tions, please consult PFEIFER Mobile Services or have
the repair done by one of the specialists from PFEIFER.

12. Transport and storage

NOTICE: Any chain slings that are not in use
should be stored on a designated rack. After
use, do not leave chain slings on the ground,
since they could be damaged. If chain slings
remain unloaded on the crane hook, hook
the end hook back in the suspension link or
the end rings in the crane hook to prevent
endangerment due to free swinging or
unintentional hooking.
If the chain slings will not be used for a certain period,
store them clean, dry and protected from corrosion, e. g.
lightly oiled. After a long storage period have the chain
sling checked by a qualified person before the first com-
missioning if the prescribed examination interval has
been exceeded or the chain was not properly stored –
see also "Examinations and Maintenance".