Thiele XKE-POINTS TWN 1884 Operating Instructions page 3

OPERATING INSTRUCTIONS
LIFTING POINTS „XKE-POINTS"
TWN 1884
5 ASSEMBLY AND REMOVAL
Preparations
The mounting location for each lifting point must ensure that
• the load can take the forces safely to be applied without suffering deformation,
• the lifting point can be assembled flush,
• no areas of danger are created (crushing point, shearing point),
• transportation is not restrained by overhang,
• deflections of sling components are avoided,
• incorrect use is avoided,
• the sling cannot be damaged, for example by sharp edges,
• the lifting point can be used easily.
Assembly
The useful depth of the thread must enable the lifting points to be safely screwed in.
Use only the delivered screws!
The threaded hole must be perpendicular to the screw-on surface in the load. The
depth of the thread "L" of the component must be at least as follows:
L = 1,0 x dg for steel (yield stress R ≥ 235 N/mm²)
e
L = 1,25 x dg for castings
L = 2,0 x dg for aluminium
L = 2,5 x dg in aluminium-magnesium-alloys
(L = depth of thread; dg = thread diameter)
• Make sure the threads of the lifting point and in the component are clean and dry.
• If lifting points should remain on the component a thread locker has to be used.
• For through-boltings, the nut must be secured against loosening.
• Single lifting operation WITHOUT turning or rotating:
Hand-tighten the screws with a suitable spanner for screws with hexagon socket
according to DIN.
It must be ensured that the screws of the lifting points cannot loosen by themselves.
• Lifting WITH turning or rotating as well as multiple lifting operations:
Tighten the screws to the tightening torques specified in the technical data.
However, repeated lowering of the load to the ground requires a new check!
• Lifting points that remain on the loads should be tightened to the tightening torques
specified in the technical data.
• Chamfers on the threaded holes are not required.
6 USE IF DIFFERENT SCREWS
If local circumstances dictate that different screws must be used from those supplied
with the installation or listed in chapter 9, the operator must ensure that
• these fasteners conform to the specified diameter and strength class,
• they can achieve the minimum required screw-in depth,
• they are 100 % crack tested,
• each bolt has a proven notched impact energy of min. 36 J as a mean value of three
samples tested at -20 °C or at the lowest fitting temperature, if this is below -20 °C,
and that none of the samples fall below 25 J,
• written confirmation of the crack test and impact energy results is enclosed with the
technical documentation.
THIELE GmbH & Co. KG
www.thiele.de | info@thiele.de
© All rights reserved
7 CONDITIONS OF USE
Normal use
The force must be applied in the longitudinal direction of the attached component (e.g.
hook).
The attached component (e.g. hook) must always be able to move freely. Supporting
the component at the lifting point is not permissible.
Using 4-leg chain slings may cause higher risk because only 2 opposite legs carrying the
load. Check the working load limit of lifting points and chain sling carefully and chose if
necessary bigger sizes.
The following illustrations show typical applications and foreseeable misuse:
Use in through holes
If lifting points are fastened by means of nuts in holes (e.g. of metal sheets), the
following conditions must be observed:
• Turning or rotating the load is not permitted.
• The strength class of the nuts must be 10 or higher (thread size M12: class 12).
• The chamfer at the end of the screw thread must protrude from the nut.
• It must be ensured that the component to be lifted is suitable to withstand the force
to be applied safely and without deformation, including the corresponding safety
factors.
• Suitable action must be taken to ensure that the nut cannot loosen unintentionally,
e.g. suitable torque or threadlocker.
Influence of temperature
The permissible working load limit of the lifting points reduces at elevated
temperatures. The reduced working load limit figures shown in the following table shall
only apply for short-term use at the temperatures indicated.
Temperature range
-20 °C ≤ t ≤ 100 °C
100 °C < t ≤ 200 °C
200 °C < t ≤ 250 °C
250 °C < t ≤ 300 °C
If a lifting point has been exposed to temperatures exceeding the maximum values
specified, it must no longer be used.
Use below -40 °C is generally not permitted.
Take care for a loss of lubricant depending on several fitting positions and higher
temperatures. A higher wear may occur. Shorten the inspection interval for that case.
B12239-A
EN 03.2023
Remaining working load limit (WLL)
100 %
85 %
80 %
75 %
# Change indicator
replaces -
3 | 4