Examples of asymmetry:
Fig. 4.2.1: The majority of the load
will be borne by one chain leg
Fig. 4.2.3: The major load is to be
borne by the single leg with the
smallest angle of inclination (ß
).
2
Particularly hazardous conditions: The specifications in
this operating manual presume the absence of
particularly hazardous conditions. Particularly
hazardous conditions include uses off-shore, lifting of
persons and the lifting of potentially hazardous loads
such as liquid metals, or nuclear material. For such
cases consult with PFEIFER to determine the degree of
danger and whether application is allowed.
5. Inappropriate use
DANGER: Improper handling of chain slings
poses a threat to life for persons and a risk
of damage to equipment. In particularly the
person standing below or next to the load is
endangered. Beware of swinging loads.
CAUTION: Putting together chains and
components of different qualities or chains
and components of different manufacturers
only upon consultation with the relevant
manufacturer. Installation may only be
performed by qualified persons.
Fig. 4.2.2: The majority of the load
will be borne by two chain legs
Hooks may not be loaded at and on the tip: Suspension
links must be freely movable in the crane hook. The
load may only be lifted when in the hook base and in
load direction. Use hooks only with functional safety
latch, unless otherwise approved. Chain components
may not be subjected to bending.
Fig. 5.1: wrong
Changes to the chain sling towards the delivery
condition are not permissible. In particular make sure
there is no welding on attachment devices and that they
are not exposed to heat influence beyond the maximum
permissible temperature.
For the safety of the user, the removal of locking pins,
safety sockets, safety latches is not allowed.
The chain should be withdrawn from service once the
maximum temperature has been exceeded.
PFEIFER chain slings are not intended for use with
foodstuffs, cosmetic or pharmaceutical products and
should not be exposed to severely corrosive conditions
(e.g. acids, caustic solutions, chemicals, waste water, ...).
Also, do not expose them to the vapours of acids and
chemicals. In addition, PFEIFER chain slings must not
be used in pickling plants, galvanizing plants and similar
companies (corrosion promoting), because of invisible
pitting corrosion in the joints or embrittlement or crack
formation to occur.
PFEIFER chain slings are not intended for passenger
transport or for use in explosion-protected areas. They
also may not be used for lifting liquid metal. Chain legs
may not be twisted or knotted.
All types of surface treatments such as for example
leaching, pickling or the subsequent application of
surface coatings are dangerous processes. Consult
with PFEIFER about suitability and approval.
PFEIFER chain slings may not be used without the WLL
identification tag.
Fig. 5.2: wrong
Chain slings 11/2019 / Subject to change!
9