Safety Instructions; Description Of Operation; Description/Technical Data; In General - Pfeifer Polytex Instructions D'utilisation

Examples of applied national regulations and standards
for application, use and testing as well as rules for
health and safety when using attachment devices:
• Germany: DGUV Rule 100-500
(formerly BGR 500) Operation of work equipment
(DGUV = German Statutory Accident Insurance)
• Austria: AMVO (Work Equipment Regulation)
• Switzerland: FCOS guidelines
• or similar

4. Safety instructions

Serious accidents can occur resulting
in injuries or even death if the safety
instructions are ignored!
• The working load limit of the attachment device
must not be exceeded. This depends on the rigging
method, see Chapter 6 Description/technical data.
The safe working load (SWL) always refers to
the „single direct" rigging method.
• The round slings must be free from defects and
damage.
• Due to the elongation, only attachment devices of
the same type may be used, e. g. two round slings
with the same material property, e. g. polyester (PES).
• Nobody must be inside the danger zone or under
the suspended load during the lifting process.
• An expert or the manufacturer must be consulted
when using the round slings in conjunction with
chemicals, acids, alkalis or other aggressive sub-
stances. The following information must be available:
Type of chemicals, concentration, temperature and
dwell time.
A possible cleaning method must be clarified with an
expert or the manufacturer before cleaning.
• Round slings with fittings and multi-leg round slings with
suspension links must not be used in acidic conditions.
Contact of metallic materials with acids or their vapours
can lead to hydrogen embrittlement.
• Avoid frost formation on or in round slings. In frosty
conditions, ice crystals form in damp round slings
and damage the load-bearing fibres. This results
in a reduction in the working load limit and loss of
strength. Ice also reduces the flexibility of the round
sling and, in extreme cases, makes the round sling
unusable, which is why wet round slings must be
dried in ventilated rooms before reusing them.
Polytex round slings 12/2021 / subject to change!
4 ®
• Strong ultraviolet light or intense exposure to sunlight
must be avoided when using round slings.
• Keep round slings away from direct heat sources
such as flying sparks or welding work.
• Never drag the load or other objects over the textile
attachment device.
• Never pull the round slings over the ground or rough
surfaces.

5. Description of operation

Serious accidents can occur resulting
in injuries or even death if the description
of operation is ignored!
• The EN 1492-2 standard and the general rules for the
lifting of loads applicable in the individual countries
(e. g. in Germany: DGUV rule 100-500,
formerly BGR 500) must be observed.
• The round sling is a universally usable attachment
device for the attachment and lifting of loads,
which can be used within the limits defined in these
operating instructions.
• Loads up to the specified working load limit can be
lifted.
• Load/attachment-specific reduction factors such as
the mode factors must be taken into account.

6. Description/Technical data

6.1 In general

• The round sling is an endless flexible sling consisting
of a load-bearing core of technical yarns completely
enclosed by a woven sheath.
• These yarns can be made of polyamide (PA), polyes-
ter (PES) or polypropylene (PP) and have a selective
resistance to chemicals.
• Polyester (PES) is resistant to most mineral acids,
but is attacked and destroyed by alkalis.
• Polyamides (PA) are practically resistant to the action
of alkalis, but are attacked by mineral acids.
• Polypropylene (PP) is hardly attacked by acids and
alkalis and is suitable for applications where maximum
resistance to chemicals other than solvents is required.