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The specific safety and operating regulations and
standards issued locally in the country where the items
are used must be observed.
The directions given in these Mounting Instructions
and specified documentations relating to safety,
assembly, operation, inspection, and maintenance
must be made available to persons operating and
using the shortening elements.
These Mounting Instructions must be available in a
place near the product during the time the equipment
is
used.
Please
replacements are needed. Also see chapter 11.
When performing work wear your personal protective
equipment!
Improper assembly and use may cause personal
injury and/or damage to property.
Assembly and removal as well as inspections and
maintenance must exclusively be carried out by skilled,
qualified, trained and authorized persons only.
Structural changes are impermissible (e.g. welding,
bending).
Operators must carry out a visual inspection and,
if necessary, a functional test of the safety
equipment before each use.
Never use worn-out, bent or damaged shortening
elements.
Only lift loads that do not exceed the Working Load
Limit of the sling chain assembly.
Never expose shortening elements to loads exceeding
the specified Working Load Limit
When using shortening elements without additional
safety elements (e.g. TWN 0827, TWN 1827, TWN
0851 or TWN 1851), special care must be taken and
the correct position of the chain in the shortening
element is to be verified for each individual hoisting
operation.
Shortening hooks must not be attached directly to
loads, e.g. metal sheets.
Only chain legs and shortening elements of the same
nominal size and grade may be connected.
Safety elements must not be excessively stressed or
strained operationally.
Do not use force when mounting/positioning the
shortening elements.
Do not twist or knot the chains together.
In case of multi-leg sling chain assemblies never allow
for inclination angles of less than 30 ° and in excess of
75 °.
Avoid bending loads to act on chain links and
shortening elements.
Make sure to use shortening/grab hooks or claws for
chain shortening purposes.
In case of shortening claws only put loads on the chain
exiting the claw pocket bottom.
B11095-A
contact
the
manufacturer
During lifting/hoisting make sure your hands or other
body parts do not come into contact with hoisting
means. Only remove hoisting means manually (use
your hands).
Avoid impacts, e.g. due to abruptly lifting loads with
chain in slack condition.
Usage without working safety elements (cotter pins,
dowel pins) is not permissible.
Shortening elements must be allowed to move freely in
all tensile directions.
In the event of doubts or concerns about the proper
and safe use, inspection, maintenance or similar things
if
contact your safety officer or the manufacturer.
THIELE will not be responsible for damage caused by
non-observance of the instructions, rules, standards
and notes indicated!
With regard to grade 100, THIELE does not give its
approval to the assembly of components sourced
from different manufacturers!
As a rule, shortening elements are not permitted for
the transportation of persons.
3. Description and intended Use
THIELE
Shortening
Shortening claws, Shortening devices) are exclusively
intented to shorten individual chain legs within several
sling chain assemblies according to ASTM A 906/A 906M.
Shortening elements must only be used within a single
loaded chain leg.
Shortening elements must only be used
within the limits of their permissible Working Load
Limit,
for permissible attachment methods and inclination
angles,
within the temperature limits prescribed,
by trained and authorized persons.
Shortening hooks with safety device can also be used
within lashing chain assemblies.
Any alternating use for lifting and lashing purposes is
impermissible!
Shortening elements are as a rule not permitted for the
transportation of persons.
THIELE Shortening elements meet EG
Directive 2006/42/EG requirements and feature a safety
factor of at least 4 based on Working Load Limit (WLL).
The shortening elements are designed to withstand 20
000 dynamic load changes under maximum load
conditions. In the event of higher loads (e.g. multi-
shift/automatic operation) the Working Load Limit (WLL)
must be reduced before the parts are put to use.
Shortening elements are marked with nominal chain size
and quality grade, manufacturer's symbol and traceability
code.
2 / 6
elements
(Shortening
Machinery
US-010619
hooks,
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