Thiele TWN 0827/1 Mounting Instructions

Mounting Instructions
for
Shortening Elements
Grades 80 and 100
Shortening Shortening
Hooks Hooks
TWN 0827/1 TWN 1827/1
TWN 0827 TWN 1827
The following Mounting Instructions must always
be followed to avoid the risk of personal injury or
property damage.
Do not use a shortening element before reading
these Mounting Instructions.
1. About this Instruction
These Mounting Instructions describe in particular how
shortening elements according to TWN 0827, TWN
0827/1, TWN 0851, TWN 0896 (grade 80), TWN 1827,
TWN 1827/1, TWN 1851 and TWN 1896 (grade 100)
(TWN = THIELE Shop Standard) are to be safely used for
hoisting purposes.
The instructions apply analogously to components of
identical design.
Compliance with these instructions is essential to help
avoid hazards and increases the reliability and service life
of the shortening elements.
DANGER! Indicates a hazardous
situation, which, if not avoided, will
result in death or serious injury.
WARNING! Indicates a hazardous
situation, which, if not avoided, could
result in death or serious injury.
CAUTION! Indicates a hazardous
situation, which, if not avoided, could
result in minor or moderate injury.
NOTICE!
practices not related to physical
injury.
Safety Instructions signs indicate
specific safety-related instructions or
procedures.
B11095-A
Shortening Shortening
Claws Devices
TWN 0851 TWN 0896
TWN 1851 TWN 1896
(Examples)
Is used to address
Definitions
Clevis
A U-shaped fitting with pin.
Working Load Limit (WLL)
The maximum load which a shortening element is
designed to support.
Read ASME B30.10 „Hooks".
Read ASME B30.26 "Rigging Hardware".
Chapters 26-0, 26-1, 26-4.
2. Basic Safety Requirements
To prevent the risk of injury
never walk or stay under lifted loads!
The Working Load Limit must not be exceeded!
Shortening elements as well as lifting and
attachment means to be used must be free from
Working under the influence of drugs, medications
impairing the sense and/or alcohol is strictly
 Operators, fitters and maintenance personnel must in
particular observe the
Instructions as well as standards ASTM A 906/A 906
M (Standard Specification for Grade 80 and Grade 100 Alloy Steel
Chain Slings for Overhead Lifting), ASTM A 952/A 952 M
(Standard Specification for Forged Grade 80 and Grade 100 Steel
Lifting Components and Welded Attachment Links), ISO 3056
(Non-calibrated round steel link lifting chain and chain slings; Use
and maintenance), ISO 7593 (Chain slings assembled by
methods other than welding; Grade T(8)) and ISO 4778 (Round
steel short link chains for lifting purposes – Chains slings of welded
construction – Grade 8).
1 / 6
defects!
forbidden!
Mounting and
US-010619
Operating