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User Instructions
1. Application only by designated and trained people,
by observing the BGR 500/DGUV 100-500 requirements
and outside of Germany according to the country specific
statutory regulations.
2. Please inspect regularly and before each usage the lift-
ing points in regard of tightening, strong corrosion, wear,
deformation etc.
3. Determine the location for the lifting point in regard of design
with adequate base material strength so that introduced forces
will be absorbed without causing deformations. The engagement
depth for steel with a tensile strength of Rm > 340 N/mm², f.e.
S235JR (1.0037) or cast iron GG25 (0.6025-without blowholes):
1.5 x M (=L)
For material with lower tensile strength please use lifting points
with longer thread engagement.
The German BG (Employer`s insurance association), recom-
mends the following minimum thread engagements:
2
x
M in aluminium alloys
2,5 x
M in light alloys with low strength
(M = thread Ø, e.g. M 20)
When lifting light metals, nonferrous metals and gray cast iron
or other materials the thread assignment has to be chosen in
such a way that the WLL of the thread, corresponds to the re-
quirements of the base material.
4. The lifting points must be positioned at the load in such a
way that prohibited assignments like turning or flipping of the
load are avoided.
a.) Position the lifting point for a single leg lift vertically above
the centre of gravity of the load.
b.) For two leg lifts, the lifting points must be equidistant to/
or above the centre of gravity of the load.
c.) For three and four leg lifts, the lifting points should be arranged
symmetrical around the centre of gravity, coplanar, if possible.
5. Symmetry of loading
Determine the required WLL of the individual RUD lifting point
for symmetrical resp. unsymmetrical loading according to the
following physical formula context:
W
= working load limit
LL
G
G
= load weight (kg)
W
=
n
= number of load bearing legs
n x cos ß
LL
ß
= angle of inclination of the chain to the vertical
The calculation of load bearing legs is as follows:
symmetrical
two leg
2
three/four leg
3
(see table 6)
6. A plane bolt-on surface (ØE) with a perpendicular thread
hole must be guaranteed.
The thread must be carried out acc. to DIN 76 (countersink max.
1.05xd). Tapped holes must be machined deep enough so that
the bearing surface of the lifting point will be supported. Machine
through holes up to DIN EN 20273-middle.
7. For mounting without a tool, especially for a one-time lift , the
STARPOINT can be supplied resp. retrofitted with a key (type:
VRS-F) see also chart 2. Simply engage into the hexagon socket
bolt the star profile key - use your fingers to respectively tighten
or untighten the arrangement. Disengage key before you attach
the lifting mean - STARPOINT must be rotatable! Do not use an
extension for the tightening in combination with the profile key.
Hint: For the usage of a torque wrench a joggled hexagon tool
is available on request (see table 5).
For a permanent installation, please tighten the VRS (depen-
ding on the model) with a torque moment (+/- 10 %) according
to chart 1/2/3/4.
8. Shock loading or vibrations can cause unintentional dismant-
ling. Securing options: Torque moment + liquid thread locker
such as Loctite or WEICONLOCK (depending on the applica-
tion, please pay attention to the manufacturer's instruction).
Attention: Ring must be free rotatable.
asymmetrical
1
1
In general secure all lifting points which are perma-
nently installed, f.e. by using glue.
9. The STARPOINT must be adjustable by 360°
when fitted and with disengaged key. Adjust to
direction of pull before lifting mean is attached.
Attention: STARPOINTS are not suited to be
turned under load!
10. The lifting mean must be free moveable in the STARPOINT
and must not bear the load edge.
The WLL mentioned in the user instruction are relating to the
cross and axial loading. In addition to that, the loading of
the lifting point with nominal load can also be done in the
direction of the tapped hole of the work piece (pic. 1 and 2).
Pic. 1: Allowed
loading area
11. When connecting and disconnecting lifting means (sling
chains, wire rope slings and webbings) no pinches, shearings
and impacts must occure.
Damage of the lifting means caused by sharp edges must be
avoided.
12. Temperature usage capability
Due to installed DIN/EN bolts in the STARPOINTS, the working
load limit must be reduced accordingly to the strength class of
the bolts as follows:
-40° to 100°C
no reduction
100° to 200°C
minus 15 %
200° to 250°C
minus 20 %
250° to 350°C
minus 25 %
Temperatures above 350°C (662°F) are not permitted.
13. RUD lifting points must not be used under chemical influ-
ences such as acids, alkaline solutions and vapours e.g. in
pickling baths or hot dip galvanising plants. If this cannot avoided,
please contact the manufacturer indicating the concentration,
period of penetration and temperature of use.
14. The position where the lifting points will be installed should
be clearly marked with a contrast colour.
15. If lifting points are used solely for lashing, the value of
the working load limit can be doubled:
Lashing capacity LC = 2 x WLL.
16. After installation, an annual inspection or if necessary even
sooner must be carried out by a competent person to guarantee
the lingering ability. This is becomes also effective after a da-
mage or a special occurrence.
Inspection criteria concerning paragraphs 2 and 16:
•
Observe correct torque moment.
•
The lifting point must be complete.
•
The working load limit and manufacturer´s stamp should
be clearly visible.
•
Deformation of the component parts such as body and
bolt.
•
Mechanical damage, such as notches, cracks
particularly in high stress areas.
•
Wear should be no more than 10 % of cross sectional
diameter.
•
Strong of corrosion.
•
Damage at the bolt and/or thread.
•
Easy and jerk free turning of the ring must be gua-
ranteed.
A non-adherence to this advice may result
damage of persons and materials!
Pic. 2: Forbidden bea-
ring- or support point at
edges
-40°F to 212°F
212°F to 392°F
392°F to 482°F
482°F to 662°F
7
VRS
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