Thiele TWN 1450 Mounting Instructions

MOUNTING INSTRUCTIONS
CHAIN TENSIONERS
GRADES 8 AND 10
Original in compliance with machinery directive 2006/42/EC
1 DESCRIPTION AND INDENTED USE
THIELE-chain tensioners are exclusively intended for the use in chain slings according
to EN 818-4 for lifting loads or in lashing chains according to EN 12195-3.
These mounting instructions describe the safe use of chain tensioners according to
TWN 1450, TWN 1451 and TWN 1452 for grade 8 and TWN 1454 and TWN 1455 for
grade 10. (TWN = THIELE factory standard)
THIELE chain tensioners are used to adjust the length of individual chain legs, e.g. as
height adjustment for even loading of multi-leg chain slings or for length adjustment
or applying of pre-tensioning forces in lashing chains.
The chain tensioners are marked with the nominal chain size, grade, manufacturer's
mark and traceability code.
Parts of the chain leg to be adjusted are fastened by a clevis system on both sides .
The length is adjusted by turning the central sleeve by means of a lever or ratchet in
relation to the clevis systems at both ends.
The internal trapezoidal threads, which are protected by tube sections, are equipped
with anti-unscrewing devices. The chain tensioners are galvanised to protect them
against corrosion. They are manufactured in the following types:
• with lever,
• with ratchet system.
THIELE chain tensioners comply with the EC Machinery Directive 2006/42/EC and have
a safety factor of min. 4 related to the working load limit (WLL).
The chain tensioners are designed to withstand 20 000 dynamic load changes under
maximum load conditions. In the event of higher loads (e.g. multi-shift/automati c
operation) the working load limit must be reduced.
They are certified by the German Social Accident Insurance (DGUV) for use in chain
slings and are marked with the H4 stamp.
The chain tensioners must exclusively be used
• within the limits of their permissible working load limits or lashing capacities,
• within the permissible slinging or lashing methods,
• within the temperature limits prescribed,
• with suitable sling or lashing chains,
• by trained and authorised persons.
An alternating use for lifting and lashing is not allowed!
Chain tensioners are not intended for the transport of persons!
2 SAFETY NOTES
Risk of injury!
Never walk or stay under lifted loads!
Make sure to use hoisting/lashing means
free from defects.
• Operators, fitters and maintenance personnel must in particular observe the
operating instructions of the chain slings in which the chain tensioners are installed,
the documentation of the employers' liability insurance association DGUV V 1,
DGUV R 109-017, DGUV I 209-013 and DGUV I 209-021 as well as the standards
DIN 685-5 and EN 818 6 or EN 12195-3.
• In the Federal Republic of Germany, the Operational Safety Ordinance (BetrSichV)
has to be implemented and the Technical Rule for Industrial Safety TRBS 1201, in
particular annex 1, chapter 2 "Special regulations for the use of working equipment
for lifting loads" must be observed.
• Outside the Federal Republic of Germany the specific provisions issu ed locally in the
country where the items are used must also be observed.
THIELE GmbH & Co. KG
www.thiele.de | info@thiele.de
© All rights reserved
• The directions given in these operating instructions and specified documentations
relating to safety, assembly, operation, inspection, and maintenance must be made
available to the respective persons.
• Make sure these operating instructions are available in a place near the product
during the time the equipment is used. Please contact the manufacturer if
replacements are needed. See also chapter 9.
• When performing work make sure to wear your personal protective equipment!
• Improper assembly and use may cause personal injury and/or damage to property .
• Assembly and removal as well as inspection and maintenance must exclusively be
carried out by skilled and authorized persons .
• 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 chain tensioners.
• Never expose chain tensioners to loads higher than the specified working load limit .
• Only chain legs and chain tensioners of the same nominal size and grade may be
connected.
• Safety elements must not be excessively stressed or strained operationally.
• Do not twist or knot the chains together.
• In case of multi-leg chain slings never allow for inclination angles of less than 15 °
and in excess of 60 °.
• Avoid bending loads to act on chain tensioners.
• During lifting/hoisting make sure your hands or other body parts do not come into
contact with hoisting means.
• Avoid impacts, e.g. due to abruptly lifting loads with chain in slack condition .
• Operation without properly functioning safety devices (cotter pins, wedges, pins) is
not permitted.
• In the event of doubts about the use, inspection, maintenance or similar things
contact your safety officer or the manufacturer!
THIELE will not be responsible for damage caused through non-observance of the
instructions, rules, standards and notes indicated!
As regards grade 10 THIELE does not give its general approval to the assembly of
components stemming from different manufacturers !
Working under the influence of drugs, medications impairing the sense and/or
alcohol is strictly forbidden!
3 COMMISSIONING
Prior to using the lifting points for the first time make sure that
• the lifting points comply with the order and have not been damaged,
• test certificate, statement of compliance, and operating instructions are at hand,
• markings correspond with what is specified in the documentation,
• inspection deadlines and the qualified persons for examinations are determined,
• visibility and functional testing are carried out and documented,
• documentations are safely kept in an orderly manner.
Dispose of the packing in an environmentally compatible way according to local rules.
B09099-B
EN 01.2023
# change indicator
replaces B09099-A
1 | 3