Thiele TWN 0798 Mounting Instructions

MOUNTING INSTRUCTIONS
SELF-LOCKING HOOKS
GRADES 8 AND 10
Original in compliance with machinery directive 2006/42/EC
TWN 0798 TWN 0799 TWN 1836
Eye Type Clevis Type
1 DESCRIPTION AND INTENDED USE
Self-locking hooks are intended for use in chain slings for attaching and lifting loads,
in accordance with EN 818-4, and in lashing chains, in accordance with EN 12195.
Self-locking hooks of type TWN 0799 and TWN 1837 are fitted directly to the chain.
Self-locking hooks of type TWN 0798, TWN 1836 and TWN 1838 are usually attached
to the chain by connectors or are connected to other lifting gear with the help of
shackles. Self-locking hooks of type TWN 1838 can be aligned by the swivel when
unloaded. #
Self-locking hooks must only be used:
• within their permissible working load limit
• within their permissible temperature limits
• in compliance with the permitted slinging configuration and angle
• by trained and authorised persons
• with original connecting bolts and pins of the specified size.
Self-locking hooks are marked with the nominal chain size and grade, the
manufacturer's symbol and the traceability code. Self-locking hooks meet the
requirements of Machinery Directive 2006/42/EC and have a design factor of 4 in
relation to their working load limit (WLL).
THIELE self-locking hooks are designed to withstand 20 000 dynamic load cycles at
maximum working load limit. For higher workloads (e.g. multi-shift and automated
operations) the working load limit is to be reduced accordingly.
When used as a lashing system the maximum lashing capacity is obtained by
doubling the working load limit.
Alternating use for lifting and lashing is only permitted up to the load
corresponding to the load capacity specification (WLL), i.e. LC = WLL! Even a single
lashing load above the load capacity specification (LC > WLL) makes further use as
lifting gear prohibited. #
Self-locking hooks are not generally approved for carrying persons.
2 SAFETY NOTES
Risk of Injury!
Never walk or stay under lifted loads!
Make sure to use hoisting/attachment
means free from defects.
• Operators, fitters, and maintenance personnel must in particular observe the
operating instructions of the used chain sling, documentations DGUV V 1,
DGUV R 109-017 and DGUV I 209-013 issued by the German Employers' Liability
Insurance Association, as well as the standard specifications DIN 685-5 and
EN 818-6.
• 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 issued locally in
the country where the items are used must also 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 the respective persons.
THIELE GmbH & Co. KG
www.thiele.de | info@thiele.de
© All rights reserved
TWN 1837 TWN 1838
Eye Type Clevis Type Swivel Type
• Make sure these mounting 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 11.
• 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 (e.g. welding, bending, detachment of parts, drilling) are not
permitted. Never attempt to reduce the size of the opening on self-locking hooks
by bending or welding in a spacer piece.
• Operators must carry out a visual inspection and, if necessary, a functional test
of the safety equipment before each use.
• Never put to use worn-out, bent or damaged self-locking hooks.
• Do not overload self-locking hooks.
• Make sure that the load can absorb the occurring forces without deformation.
• Do not use force when mounting/positioning the self-locking hooks.
• Only lift loads that can move freely and are not anchored or fastened.
• Self-locking hooks must only be loaded at their base, never at their tips. Clamping
of the load at the tip of the hook between the upper and lower part is not
permitted.
• The self-locking hooks must be lined up in the direction of tension, not sideways
to it, in order to avoid bending stress.
• The lifting process may only be initiated when you are sure that the load is
correctly attached. #
• Make sure that you and other persons are not within the movement range of the
load (danger zone). #
• During lifting/hoisting make sure your hands or other body parts do not come into
contact with hoisting means.
• Never leave lifted loads unattended.
• Avoid impacts, e.g. due to abruptly lifting loads with chain in slack condition.
• Never lift a load over people.
• Do not cause a suspended load to sway.
• Only place the load on level and suitable surfaces.
• Do not operate the system without fully functioning safety devices (cotters, dowel
pins, lever).
• Loads must only be lifted when the hooks are in a locked position.
• 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!
THIELE does not give general approval for components supplied by other
manufacturers to be fitted to and used on equipment of grade 10!
Working under the influence of drugs, medications impairing the sense and/or
alcohol (including residual alcohol) is strictly forbidden!
B09721-D
EN 12.2024
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replaces B09721-C
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