RUD ACP M8-M30 ACP Turnado Lifting Points User Guide

: June 13, 2024
: RUD

Table of Contents

RUD ACP M8-M30 ACP Turnado Lifting Points
Product Information
Safety instructions
Intended use
Instructions for assembly and use
Tables/Overview
References
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RUD ACP M8-M30 ACP Turnado Lifting Points

Product Information

The Automatic Center Point (ACP) is a product manufactured by RUD Ketten Rieger & Dietz GmbH u. Co. KG. It is designed for bolting and is available in various sizes:

ACP M8-M30 / ACP 1/2-1 1/4
ACP M36-M48 / ACP 1 1/2- 2
ACP M52-M100 / ACP 2 1/2 -4

The product conforms to the safety and health requirements of the EC-Machinery Directive 2006/42/EC and complies with the following harmonized norms:

DIN EN 1677-1:2009-03
DIN EN ISO 12100:2011-03
ASME B30.26:2015
DGUV-R 109-017:2020-12

Carefully read the instructions prior to using Automatic Center Point boltable lifting points (hereinafter referred to as ACP). Make sure you have understood everything.
Failure to observe the instructions can result in physical injury or material damage and means that the warranty no longer applies.

Safety instructions

WARNING: Wrong assembled or damaged ACP as well as improper use can lead to injuries of persons and damage of objects when load drops. Please inspect all ACP before each use.

Keep all body parts like fingers, hands, arms, etc. out of the hazardous area during the lifting operation.
Attention: When suspension ring pivots there is a risk of pinching.
All ACP lifting points must only be used by au-thorized and trained persons in adherence with DGUV Regulations 109-017 and according to the country-specific provisions and regulations outside Germany.
The stated WLL at the ACP must not be exceeded.
The ACP must be able to rotate by 360° once it is tightened.
The ACP is not permissible to be rotated perma-nently under load.
Any technical modifications at the ACP are prohibited.
Keep persons out of the hazardous area.
Detention under a floating load is forbidden.
Jerkily lifts with shock loads must be avoided.
When the lift starts, pay attention to a stable posi-tion of the load. Avoid swinging of the load.
The bolt must always be inserted into the bushing from the tapered side, resp. from the side where the spring and labelling for ACP M8-M30 or 1/2”-1 1/4” is marked.
Damaged or worn ACPs must no longer be used.

Intended use

ACP must only be used for the assembly at loads or in combination with lifting means.
They are intended to hinge lifting means.
ACPs may also be used as lashing points to hinge lashing means.
ACPs may only be used for the purposes described here.

Instructions for assembly and use

General information

Suitability for use at certain temperatures: Reduce the bolts’ load-bearing capacities as follows according to the bolts’ class of strength in conjunction with ACPs as a result of the applied bolts:
- 40°C to 100°C → no reduction
  100°C to 200°C minus 15 % (212 to 392°F) 200°C to 250°C minus 20 % (392 to 482°F) 250°C to 350°C minus 25 % (482 to 662°F) Temperatures over 350°C (662°F) are not permitted!

Note the maximum application temperature of the enclosed nuts (optional).

Clamping nuts as per DIN EN ISO 7042 (DIN 980) can be used up to at max. 150°C.
Collar nuts as per DIN 6331 can be used up to at max. +300°C. Note additional reduction factors.
ACPs must not be brought into contact with ag-gressive chemicals, acids or their vapours.
Mark the attachment positions of the ACPs with a contrasting colour for easy identification.
RUD supplies ACPs including a crack-tested hex bolt (length up to Lmax, see Table 2 / Table 3). M8-M24 or 1/2“-1“: ICE-BOLT
M30-M48 or 1 1/4“-2“: 10.9 bolt

ATTENTION
Use the corresponding size for the listed class of strength only! Exclusively use genuine RUD-ICE-BOLTs for M8-M24 or 1/2“-1“ sizes.

For sizes M52-M100 or 2 1/2“-4“ the bolt cannot be exchanged.
Genuine bolts (ICE-BOLT and 10.9 bolts) are available from RUD as spare parts.
If 10.9 bolts from the aftermarket are used instead of an original RUD bolt, especially at the dimension M30-M48 or 1 1/4“-2“, make sure that they have been 100 % crack detected. A written confirmation from the supplier must be added to the ACP documents. The average notch bar impact test at the lowest permitted usage temperature must be at a minimum 36 J. This specification is required as per the test criteria for lifting points GS OA 15-04.

NOTE: Disassembly/assembly to check or replace the bolt must only be carried out by an authorized person (see section 3.4 Disassembly/assembly of the RUD bolt).

Variants

Metric Vario lengths are supplied by RUD with a washer and a crack-tested nut as per DIN EN ISO 7042 or with a crack-tested collar nut as per DIN 6331.
If the ACP is exclusively used for lashing, the load-bearing capacity value can be doubled:
LC = Permitted lashing force = 2 x load-bearing capacity (WLL)

NOTE: If the ACP is/was used as a lashing point, with a force higher than the WLL, it must not be used as a lifting point afterward. If the ACP is/was used as a lashing point, up to the WLL only, it can still be used afterward as a lifting point.

The marking of the technical details are shown as follows:
M8-M30 or 1/2“-1 1/4“: The markings are shown on top of the bushing and on the head of the bolt (see Pic. 1).
M36-M100 or 1 1/2“-4“: The markings are shown on the deflector disc and the head of the bolt (see Pic. 2, Pic. 3 and Pic. 4).

RUD-ACP-M8-M30-ACP-Turnado-Lifting-Points-fig-2

HINT: Angle marking helps to estimate 45°- or 60°-position of the suspension ring.

Hints for mounting
The following applies in general:

The installation area must be selected carefully to ensure that the transferred forces can be absorbed by the base material without any deformation. The professional organisation recommends the following minimum thread engagement length: 1 x M in steel (minimum quality S235JR [1.0037]) 1.25 x M in cast part (e.g. GG 25)
2 x M in aluminium alloys
2.5 x M in light alloys with low strength
(M = thread size, e.g. M 20)
In the case of light metals, non-ferrous metals and grey cast iron, the allocation of the threads must be selected such that the load-bearing capacity of the thread corresponds to the requirements of the base material in question.
Define the installation location of the ACP in such a way that inadmissible stresses caused by twisting or flipping of the load will be avoided:
- Single strand lifting:
  Position the suspension ring vertically above the load’s center of gravity
- Double strand lifting:
  Position lifting means on each side and above the load’s center of gravity
- Three and four-strand lifting:
  Position lifting means evenly in one level around the load’s center of gravity.

Symmetry of the load:
Determine the required load-bearing capacity of the individual lifting point for both symmetrical and asymmetrical loading according to the physical relationship described by the following formula:

WLL = Required load-bearing capacity of the lifting point/single strand (kg)
G = Load weight (kg)
n = Number of load-bearing strands
ß = Angle of inclination of the individual strand

The number of load-bearing strands is:

NOTE At unsymmetrical loads, the WLL of a single lifting point must at least correlate with the load weight.

A plane bolt-on surface (ØE, Table 2 / Table 3) with rectangular machined thread holes must be assured. The execution of the threaded hole must be machined acc. to DIN 76 (counterbore diameter at the max. 1.05 x d). The tapped holes must be at least deep enough that the bearing surface of the lifting point sits properly at the surface of the load. Through holes must be machined acc. to DIN EN 20273-middle\
The ACP must be able to rotate by 360° when installed and tightened. Observe the following hints:
For a single lift it is sufficient to manually tighten the bolts until they are in contact with the ACP contact surface on the bolt surface using a spanner.
Attention: Do not exceed the specified tightening torque
If the lifting point will be permanently installed, the stated torque (± 10 %) must be applied with the values acc. to Table 2 / Table 3.
When turning loads using the ACP (see section 3.3.3 Permitted lifting and turning actions) it is necessary to tighten the bolt with a torque (± 10 %) according to Table 2 / Table 3.
When shocks or vibrating loads occur, especially at through-hole bolt constructions in combination with a nut, unintentional opening of the bolt connection may occur.
Securing options: Observing the required torque.
Use of a liquid bolt securing glue, f.e. Loctite (Adapted to the usage, observe user instruction of manufacturer).
Finally, check the correct installation (see section 4 Inspection / Repair / Disposal).

Hints for the usage

General information regarding use

The whole lifting point must be inspected regularly by a competent person in regard of the correct mounting direction of the bolt, proper installation, tightening of the bolt, strong corrosion, cracks at load-bearing parts, and deformations (e.g. by the person responsible for attachment). See section 4 Inspection / Repair / Disposal

WARNING
Wrong assembled or damaged ACPs as well as inappropriate usage may lead to injury of persons and property damage when load drops.
Please inspect all ACPs before each use.

RUD components have been designed as per DIN EN 818 and DIN EN 1677 for a dynamic load of 20,000 load cycles.
Observe and be aware that multiple load cycles can occur during a lifting operation.
Observe the risk of product damage caused by high dynamic influences at high load cycle numbers.
BG/DGUV Germany’s employer insurance association recommends: At high dynamical loading with a high number of load cycles (permanent use), the stress at WLL acc. to FEM class 1Bm (M3 acc. to DIN EN 818-7) must be reduced. Use a lifting point with a higher WLL.
During attaching and unhinging of lifting means (chain sling) no crushing, tripping or shearing actions may occur.
Eliminate damaging of lifting means caused by sharp edges
Prior to loading adjust the ACP lifting point towards the direction of the load force.
A: In the pivoting direction, the load is permissible up to the contact of the lift bail with the load.
B: Not permissible lateral load range in the plane of the lift bail (automatically prevented by the spring).
Pic. 5 shows the design of the ACP M8-M30 resp. 1/2“- 1 1/4“ . The load areas also apply for the ACP M36-M100 and 1 1/2“-4“ respectively

Observe that the lifting mean is freely movable within the suspension ring of the ACP. Pic. 6: Only use suitable lifting means for the hinging at the ACP.
Any bending force at the suspension ring is prohibited. Pic. 7: The suspension ring must be freely movable and not touch the edge of the load.
Make sure that the lifting point is fully engaged into the tapped hole
General information regarding the spring
The spring keeps the suspension ring away from the shaded area shown in Pic.
As a matter of fact this avoids prohibited side loading of the ring in the 90 ° direction (see section 3.3.1, Pic. 5). Under load the force of the spring will be over beared and the ACP can be loaded in the vertical direction. The pivoting of the suspension ring is possible with an increased hand force.
Permitted lifting and turning actions

The following turning actions are permitted:
Turning of load while suspension ring is pivoted in the direction of the load force

WARNING: The suspension ring must not get in touch with the edge of the load or other attachments

WARNING Prior to each lifting or turning action check torque of the bolt.

After a max. turn of 180°, the torque of the bolt must be checked.
Turning around the bolt axle under load, with the exception of section 3.3.4, is permissible.

Prohibited lifting and turning actions

Do not rotate the ACP under load in the direction of the bolt axle (± 15°).
Not suitable for permanent turning actions under load.

Disassembly/assembly of the RUD bolt
The following figures show the design of the ACP M8- M30 or 1/2“-1 1/4“. The disassembly/assembly of the RUD bolt works in the same way for the ACP M36-M48 or 1 1/2“-2“. |

WARNING

Always pay attention to the correct mounting direction of the bolt:
The bolt must always be inserted into the bushing from the tapered side, resp. form the side where the spring and labelling for
ACP M8-M30 or 1/2“-1 1/4“ is marked

NOTE
Disassembly/assembly to either replace or check the bolt must be carried out by a competent person!

NOTE
The ACP M52-M100 or 2 1/2“-4“ bolt cannot be replaced

Disassembly of the bolt

Position the ACP upside down to the left and right of the bolt head at the bush on a support (e.g. vice).
Attention: Do not clamp head of bolt!
Slightly hammer on the end of the bolt to punch the bolt out from the bushing (Pic. 12).
Attention: In doing so, the thread must not be damaged!

Assembly of the bolts M8-M10

HINT
Only the appropriate strength class of bolt for each specific size must be used! M8-M10: ICE-Bolt only

Insert the bolt into the drill hole in the socket until the retaining ring is positioned on the socket
Squeeze the retaining ring together with flat pliers so that it sits deeply in the groove of the nut.
Now insert the bolt with light hits with a hammer fully into the socket.
Finally, control the tightness of the bolt. The bolt must be easily rotatable by 360

Assembly of the bolts M12-M48 resp. 1/2“-2“

NOTE

Only the correct bolt type (strength class) acc. to the corresponding size must be used!
M12-M24 or 1/2“-1“: ICE-BOLT only
M30-M48 or 1 1/4“-2“: 10.9 bolt

Insert the bolt into the bushing from the tapered side (see Pic. 13).
Insert the bolt into the bush so that the snap ring has been fully positioned in a recess of the bush (see Pic. 14).
HINT: Finally, turn the bolt until the snap ring sits properly in the groove
Apply light beats on the bolt head to insert the bolt and to make sure that the bearing surface of the bolt sits on top of the bushing.
Subsequently, check if the bolt is captive and can be turned easily. The bolt must rotate easily by 360°.

Inspection / Repair / Disposal

Hints for the regular inspection

The operator has to determine and dictate the necessary inspection periods and the deadlines by a risk assessment (see sections 4.2 and 4.3).
The persisting appropriateness of the lifting point must be checked by a competent person (auditor) at least once per year.
Depending on the conditions of use e.g. frequent use, increased wear or corrosion, it may be necessary to carry out inspections at shorter intervals than once per year. Verification is also required following damage and after special events.
The operator must specify the test cycles

Inspection criteria for them regularly
examination carried out by the operator:

Correct bolt and nut size, bolt quality grade, and thread engagement length
the correct mounting direction of the bolt: the bolt must always be inserted into the bushing from the tapered side, resp. from the side where the spring and labelling for ACP M8-M30 or 1/2“- 1 1/4“ is marked.
Observe proper tightening of the bolt.
Check torque value.
Completeness of the lifting point.
Check the readability of the WLL statement and manufacturer sign
Deformations at load-bearing areas like the body, suspension ring, and bolt.
Mechanical damage like notches especially in areas with tensile stress.
Easy turning of the ACP around the bolt axle must be guaranteed.
The function of the spring (suspension ring must be kept away from vertical position, see section 3.3.2, Pic. 10).

Additional inspection criteria for the competent person resp. auditor

Reduction of cross-section caused by wear of more than 10 %
Strong corrosion
Function and damage at bolts, nuts, and at the tapped hole (3.4 Disassembly/assembly of the RUD bolt).
Additional inspections may be necessary depending on the result of the risk assessment (e.g. incipient cracks at load-bearing parts).

Disposal
Dispose of worn-out components/attachments or packaging according to the local waste removal requirements.