Cranes - Loader cranes

This document specifies minimum requirements for design, calculation, examinations and tests of hydraulic powered loader cranes and their mountings on vehicles or static foundations.
This document applies to loader cranes designed to be installed on:
-   road vehicles, including trailers, with load carrying capability;
-   tractors (road or agricultural), where only a towed trailer has capability to carry goods;
-   demountable bodies to be carried by any of the above;
-   other types of carriers (e.g. separate loaders, crawlers, rail vehicles, non-seagoing vessels);
-   static foundations.
This document also applies to loader cranes equipped with special tools or interchangeable equipment (e.g. grapple, clamshell bucket, pallet clamp, etc.), as specified in the operator’s manual.
This document does not apply to loader cranes used on board sea going vessels or to articulated boom system cranes which are designed as total integral parts of special equipment such as forwarders.
The hazards covered by this document are identified in Clause 4.
This document does not cover hazards related to the lifting of persons.
NOTE   The use of cranes for lifting of persons can be subject to specific national regulations.
This document is not applicable to loader cranes manufactured before the publication of this document. For loader cranes designed before the publication of this document, the provisions concerning stress calculations in the version of EN 12999 that was valid at the time of their design, are still applicable.

Krane - Ladekrane

Dieses Dokument legt Mindestanforderungen an Gestaltung, Berechnung, Untersuchungen und Prüfungen von hydraulisch angetriebenen Ladekranen und deren Montage auf Fahrzeuge oder ortsfeste Unter¬konstruktionen fest.
Dieses Dokument gilt für Ladekrane, die dafür vorgesehen sind, wie folgt montiert zu werden:
- auf Straßenfahrzeuge, einschließlich Anhängern, mit einer verbleibenden Nutzlast;
- auf Traktoren (Straße oder Landwirtschaft), bei denen nur der Anhänger über die Möglichkeit verfügt, Güter zu befördern;
- als demontierbare Einrichtungen, die von einer der oben genannten Maschinen mitgeführt werden;
- auf sonstigen Trägerarten (z. B. Separat-Lader, Raupenfahrzeuge, Schienenfahrzeuge, nicht hochseetüchtige Schiffe);
- auf ortsfeste Unterkonstruktionen.
Dieses Dokument gilt außerdem für Ladekrane, die mit Spezialwerkzeugen oder austauschbaren Ausrüstungsteilen (z. B. Greifer/Zange, Zweischalengreifer, Palettengabel usw.), wie in der Betriebsanleitung festgelegt, ausgestattet sind.
Dieses Dokument gilt nicht für Ladekrane auf Seeschiffen sowie Krane mit Knickauslegersystem, die vollständig als integraler Bestandteil einer speziellen Ausrüstung, wie z. B. Rückefahrzeug (Forwarder), ausgelegt sind.
Die Gefährdungen, die in diesem Dokument behandelt werden, sind in Abschnitt 4 aufgeführt.
Dieses Dokument behandelt nicht die Gefährdungen, die beim Heben von Personen auftreten.
ANMERKUNG Die Verwendung von Kranen für das Heben von Personen kann besonderen nationalen Vorschriften unterliegen.
Dieses Dokument gilt nicht für Ladekrane, die vor dem Datum der Veröffentlichung dieses Dokuments hergestellt wurden. Für Ladekrane, die vor Veröffentlichung dieses Dokuments konstruiert wurden, gelten nach wie vor die Festlegungen hinsichtlich der Spannungsberechnungen entsprechend der Ausgabe von EN 12999, die zum Zeitpunkt ihrer Konstruktion gültig war.

Appareils de levage à charge suspendue - Grues de chargement

Le présent document spécifie les prescriptions minimales relatives à la conception, au calcul, aux examens et aux essais des grues de chargement hydrauliques et à leur montage sur des véhicules ou massifs pour montage à poste fixe.
Le présent document s'applique aux grues de chargement conçues pour être installées sur :
-   des véhicules routiers, y compris les remorques, ayant une capacité de charge ;
-   des tracteurs (routiers ou agricoles), lorsque seule la remorque tractée est capable de transporter des marchandises ;
-   des caisses amovibles qui doivent être transportées par l'un des véhicules susmentionnés ;
-   d'autres types de transporteurs (par exemple : chargeurs séparés, transporteurs sur chenilles, transporteurs sur rail, navires d’eau douce) ;
-   des bases statiques.
Le présent document s'applique également aux grues de chargement équipées d'outils spéciaux ou d'équipements interchangeables (par exemple, grappin, benne preneuse, pince à palette, etc.), comme indiqué dans le manuel de l'opérateur.
Le présent document ne s'applique pas aux grues de chargement utilisées à bord des navires de haute mer et aux appareils de levage à charge suspendue à flèche articulée qui sont conçus comme faisant partie intégrante d’un équipement spécial tel que des débardeuses.
Les phénomènes dangereux couverts par le présent document sont identifiés à l’Article 4.
Le présent document ne couvre pas les phénomènes dangereux relatifs au levage de personnes.
NOTE   L’utilisation d’appareils de levage pour le levage de personnes peut être soumise à des réglementations nationales spécifiques.
Le présent document ne s'applique pas aux grues de chargement construites avant sa publication. Pour les grues de chargement conçues avant la publication du présent document, les dispositions concernant les calculs de contraintes dans la version de l’EN 12999 qui était valable au moment de leur conception, ne sont pas encore applicables.

Žerjavi - Nakladalni žerjavi

General Information

Status
Published
Publication Date
13-Oct-2020
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
14-Oct-2020
Completion Date
14-Oct-2020

RELATIONS

Effective Date
23-Aug-2017
Effective Date
21-Oct-2020

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SLOVENSKI STANDARD
SIST EN 12999:2020
01-december-2020
Nadomešča:
SIST EN 12999:2011+A2:2018
Žerjavi - Nakladalni žerjavi
Cranes - Loader cranes
Krane - Ladekrane
Appareils de levage à charge suspendue - Grues de chargement
Ta slovenski standard je istoveten z: EN 12999:2020
ICS:
53.020.20 Dvigala Cranes
SIST EN 12999:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 12999:2020
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SIST EN 12999:2020
EN 12999
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2020
EUROPÄISCHE NORM
ICS 53.020.20 Supersedes EN 12999:2011+A2:2018
English Version
Cranes - Loader cranes
Appareils de levage à charge suspendue - Grues de Krane - Ladekrane
chargement
This European Standard was approved by CEN on 10 August 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12999:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 12999:2020
EN 12999:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms, definitions, illustration of parts and abbreviated terms ................................................... 8

3.1 Terms and definitions ................................................................................................................................... 8

3.2 Illustration of parts ..................................................................................................................................... 13

3.3 Abbreviated terms ....................................................................................................................................... 15

4 List of significant hazards ......................................................................................................................... 15

5 Safety requirements and/or protective/risk reduction measures ............................................ 18

5.1 General ............................................................................................................................................................. 18

5.2 Structural calculation ................................................................................................................................. 18

5.3 Stress analysis ............................................................................................................................................... 24

5.4 Mechanical arrangements......................................................................................................................... 25

5.5 Hydraulic system .......................................................................................................................................... 27

5.6 Limiting and indicating devices .............................................................................................................. 29

5.7 Controls ............................................................................................................................................................ 34

5.8 Control stations ............................................................................................................................................. 35

5.9 Electrical systems ......................................................................................................................................... 38

5.10 Installation ..................................................................................................................................................... 38

6 Verification of the safety requirements and/or protective/risk reduction measures ....... 40

6.1 General ............................................................................................................................................................. 40

6.2 Testing and test procedures ..................................................................................................................... 44

6.3 Noise emission measurement .................................................................................................................. 50

7 Information for use ..................................................................................................................................... 50

7.1 General ............................................................................................................................................................. 50

7.2 Instructions .................................................................................................................................................... 50

7.3 Marking ............................................................................................................................................................ 53

Annex A (informative) Examples of configurations and mountings ....................................................... 62

Annex B (informative) Stress history parameter s and stress history classes S ................................ 69

Annex C (informative) Explanatory notes ........................................................................................................ 73

Annex D (informative) Examples of dangerous movements ..................................................................... 75

Annex E (normative) Symbols for working and setting-up functions .................................................... 77

Annex F (informative) Control system – Preferred vertical layout for controls operated

from the ground ............................................................................................................................................ 79

Annex G (informative) Control system – Horizontal layout order .......................................................... 81

Annex H (informative) Control levers for high seats and remote controls .......................................... 84

Annex I (normative) Cabins fitted on vehicle mounted loader cranes up to a net lifting

moment of 250 kNm .................................................................................................................................... 87

Annex J (informative) Examples of raised control stations ....................................................................... 90

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SIST EN 12999:2020
EN 12999:2020 (E)
Annex K (normative) Raised control stations – Measures regarding handrails and

handholds, ladders and steps ................................................................................................................... 93

Annex L (informative) Installation of a loader crane on a vehicle ........................................................... 96

Annex M (informative) Selection of a suitable set of crane standards for a given application .. 102

Annex ZA (informative) Relationship between this European Standard and the essential

requirements of EU Directive 2006/42/EC aimed to be covered ............................................ 104

Bibliography .............................................................................................................................................................. 107

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SIST EN 12999:2020
EN 12999:2020 (E)
European foreword

This document (EN 12999:2020) has been prepared by Technical Committee CEN/TC 147 “Cranes -

Safety”, the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by April 2021, and conflicting national standards shall be

withdrawn at the latest by April 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 12999:2011+A2:2018.
The two major changes are the following:

— replacing the reference to EN 954-1:1996 with a reference to EN ISO 13849-1:2015;

— improving the subclause on stability test.

This document has been prepared under a standardization request given to CEN by the European

Commission and the European Free Trade Association, and supports essential requirements of

EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this

document.

The new requirements concerning limiting and indicating devices that are introduced in 5.6.1 of this

revision of the document are not mandatory to cranes manufactured the first 12 months after the Date of

Availability of the revised document. Annex M provides a list of standards that are relevant to other types

of cranes.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,

Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,

Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North

Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United

Kingdom.
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SIST EN 12999:2020
EN 12999:2020 (E)
Introduction

This document is a harmonized standard to provide one means for loader cranes to conform to the

essential health and safety requirements of the Machinery Directive 2006/42/EC.
This document is a type-C standard as stated in EN ISO 12100:2010.

This document is of relevance, in particular, for the following stakeholder groups representing the market

players with regard to machinery safety:
— machine manufacturers (small, medium and large enterprises);

— health and safety bodies (regulators, accident prevention organizations, market surveillance, etc.).

Others can be affected by the level of machinery safety achieved with the means of the document by the

above-mentioned stakeholder groups:
— machine users/employers (small, medium and large enterprises);

— machine users/employees (e.g. trade unions, organizations for people with special needs);

— service providers, e.g. for maintenance (small, medium and large enterprises);
— consumers (in case of machinery intended for use by consumers).

The above-mentioned stakeholder groups have been given the possibility to participate at the drafting

process of this document.

The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are

covered are indicated in the Scope of this document.

When requirements of this type-C standard are different from those which are stated in type-A or type-B

standards, the requirements of this type-C standard take precedence over the requirements of the other

standards for machines that have been designed and built according to the requirements of this type-C

standard.

The machinery concerned and the extent to which hazards are covered are indicated in the scope of this

document.
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SIST EN 12999:2020
EN 12999:2020 (E)
1 Scope

This document specifies minimum requirements for design, calculation, examinations and tests of

hydraulic powered loader cranes and their mountings on vehicles or static foundations.

This document applies to loader cranes designed to be installed on:
— road vehicles, including trailers, with load carrying capability;

— tractors (road or agricultural), where only a towed trailer has capability to carry goods;

— demountable bodies to be carried by any of the above;

— other types of carriers (e.g. separate loaders, crawlers, rail vehicles, non-seagoing vessels);

— static foundations.

This document also applies to loader cranes equipped with special tools or interchangeable equipment

(e.g. grapple, clamshell bucket, pallet clamp, etc.), as specified in the operator’s manual.

This document does not apply to loader cranes used on board sea going vessels or to articulated boom

system cranes which are designed as total integral parts of special equipment such as forwarders.

The hazards covered by this document are identified in Clause 4.
This document does not cover hazards related to the lifting of persons.

NOTE The use of cranes for lifting of persons can be subject to specific national regulations.

This document is not applicable to loader cranes manufactured before the publication of this document.

For loader cranes designed before the publication of this document, the provisions concerning stress

calculations in the version of EN 12999 that was valid at the time of their design, are still applicable.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

NOTE In the event of conflicting statements between referenced documents and this document, the statements

in this document apply.

EN 1677-2:2000+A1:2008, Components for slings - Safety - Part 2: Forged steel lifting hooks with latch,

Grade 8

EN 12077-2:1998+A1:2008, Cranes safety - Requirements for health and safety - Part 2: Limiting and

indicating devices

EN 14492-2:2019, Cranes - Power driven winches and hoists - Part 2: Power driven hoists

EN 12644-1:2001+A1:2008, Cranes - Information for use and testing - Part 1: Instructions

EN 12644-2:2000+A1:2008, Cranes - Information for use and testing - Part 2: Marking

EN 13001-1:2015, Cranes - General design - Part 1: General principles and requirements

EN 13001-2:2014, Crane safety - General design - Part 2: Load actions
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SIST EN 12999:2020
EN 12999:2020 (E)

EN 13001-3-1:2012+A2:2018, Cranes - General Design - Part 3-1: Limit States and proof competence of

steel structure

EN 13001-3-2:2014, Cranes - General design - Part 3-2: Limit states and proof of competence of wire ropes

in reeving systems

EN 13001-3-5:2016, Cranes - General design - Part 3-5: Limit states and proof of competence of forged

hooks

EN 13001-3-6:2018, Cranes - General design - Part 3-6: Limit states and proof of competence of machinery

- Hydraulic cylinders
EN 13135:2013+A1:2018, Cranes - Safety - Design - Requirements for equipment
EN 13557:2003+A2:2008, Cranes - Controls and control stations
EN 13586:2004+A1:2008, Cranes - Access

EN 14033-2:2017, Railway applications - Track - Railbound construction and maintenance machines - Part

2: Technical requirements for travelling and working

EN IEC 61000-6-2:2019, Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity

standard for industrial environments (IEC 61000-6-2:2016)

EN IEC 61000-6-4:2019, Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission

standard for industrial environments (IEC 61000-6-4:2018)

EN 60204-32:2008, Safety of machinery - Electrical equipment of machines - Part 32: Requirements for

hoisting machines (IEC 60204-32:2008)

EN 62745:2017, Safety of machinery - Requirements for cableless control systems of machinery

EN ISO 898-1:2013, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts,

screws and studs with specified property classes - Coarse thread and fine pitch thread (ISO 898-1:2013)

EN ISO 3744:2010, Acoustics - Determination of sound power levels and sound energy levels of noise sources

using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO

3744:2010)

EN ISO 4413:2010, Hydraulic fluid power - General rules and safety requirements for systems and their

components (ISO 4413:2010)

EN ISO 4871:2009, Acoustics - Declaration and verification of noise emission values of machinery and

equipment (ISO 4871:1996)

EN ISO 5353:1998, Earth-moving machinery, and tractors and machinery for agriculture and forestry - Seat

index point (ISO 5353:1995)

EN ISO 6892-1:2019, Metallic materials - Tensile testing - Part 1: Method of test at room temperature

(ISO 6892-1:2019)

EN ISO 11201:2010, Acoustics - Noise emitted by machinery and equipment - Determination of emission

sound pressure levels at a work station and at other specified positions in an essentially free field over a

reflecting plane with negligible environmental corrections (ISO 11201:2010)
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SIST EN 12999:2020
EN 12999:2020 (E)

EN ISO 11688-1:2009, Acoustics - Recommended practice for the design of low-noise machinery and

equipment - Part 1: Planning (ISO/TR 11688-1:1995)

EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction

(ISO 12100:2010)

EN ISO 13849-1:2015, Safety of machinery - Safety-related parts of control systems - Part 1: General

principles for design (ISO 13849-1:2015)

EN ISO 13849-2:2012, Safety of machinery - Safety-related parts of control systems - Part 2: Validation (ISO

13849-2:2012)

EN ISO 13854:2019, Safety of machinery - Minimum gaps to avoid crushing of parts of the human body (ISO

13854:2017)

EN ISO 13857:2019, Safety of machinery - Safety distances to prevent hazard zones being reached by upper

and lower limbs (ISO 13857:2019)
3 Terms, definitions, illustration of parts and abbreviated terms
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1 Loader crane
3.1.1.1
loader crane

power driven crane comprising a column, which slews about a base, and a boom system which is attached

on to the top of the column and being designed for loading and unloading vehicles

Note 1 to entry: Annex A gives examples of configuration and mountings.
3.1.1.2
self -powered loader crane

loader crane that has power source and hydraulic pump as integral parts of the machine

3.1.1.3
timber handling crane

loader crane specifically designed, manufactured and equipped with a grapple for loading/unloading of

unprepared timber (e.g. tree trunks, branches)
3.1.1.4
separate loader

vehicle, with no load carrying capacity, equipped with a loader crane and designed to load or unload other

vehicles and trailers
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SIST EN 12999:2020
EN 12999:2020 (E)
3.1.1.5
demountable body
detachable frame designed to be carried by a vehicle or trailer
3.1.2 Components
3.1.2.1
base
housing incorporating anchoring points and bearings for the slewing column
3.1.2.2
boom
structural member in the boom system of the loader crane
3.1.2.3
boom extension, hydraulic

part of the boom system which is capable of hydraulic telescopic movement to vary its length

3.1.2.4
boom extension, manual

part of the boom system which can be manually attached or manually extended to increase the outreach

of the boom system
3.1.2.5
boom system
complete system, consisting of booms, boom extensions and cylinders
3.1.2.6
column
structural member which supports the boom system
3.1.2.7
control system

interface between the operating levers and the actuating components which provide movements of the

loader crane
3.1.2.8
control station
position from which the loader crane may be operated
3.1.2.9
fixed load lifting attachment

lifting attachment which is fitted directly to the boom of a crane but does not increase the outreach of the

boom system
EXAMPLE Grapple, pallet clamp, clamshell bucket.
3.1.2.10
high seat
control station connected to the column, consequently rotating with the crane
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SIST EN 12999:2020
EN 12999:2020 (E)
3.1.2.11
hoist

machines for lifting and lowering suspended loads over predetermined distances, using ropes, chains or

belts
3.1.2.12
non-fixed load lifting attachment

lifting attachment which can be fitted directly or indirectly to the hook or any other coupling device of a

crane by the user without affecting its integrity and does not increase the outreach of the boom system

3.1.2.13
raised control station

control station at a height above the ground level, i.e. a high seat attached to the column of the loader

crane or a platform positioned above the base of the loader crane
Note 1 to entry: See Annex J.
3.1.2.14
stabilizer

aid to the supporting structure connected to the base of the crane or to the vehicle to provide stability,

without lifting the vehicle from the ground
3.1.2.15
stabilizer extension

part of the stabilizer capable of extending the stabilizer leg laterally from the transport position to the

operating position
3.1.2.16
stabilizer leg

part of a stabilizer capable of contacting the ground to provide the required stability

3.1.2.17
static foundation
fixed support incorporating mounting points for a crane
3.1.3 Hydraulics
3.1.3.1
current working pressure

working pressure acting on the piston area, giving the same resultant force as the actual pressures acting

on both sides of the piston, and that corresponds to the rated capacity at any time

3.1.3.2
dynamic pressure

pressure in a hydraulic system component or part of hydraulic system caused by dynamic forces on

actuators when handling the load
3.1.3.3
hydraulic line rupture
failure of a hydraulic line which results in a loss of pressure in the line
3.1.3.4
maximum working pressure
maximum pressure in pump circuit or individual working function
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SIST EN 12999:2020
EN 12999:2020 (E)
3.1.3.5
sink rate

distance in a given time at which the load lowers due to internal leakage of hydraulic components

3.1.3.6
stability test pressure

equivalent pressure acting on the piston area of the 1 boom cylinder, used for stability testing and giving

the same resultant force as the actual pressures acting on both sides of the piston

3.1.4 Kinematics
3.1.4.1
articulated movement
movement of boom members pivoting about a pin joint
3.1.4.2
crane inclination

angle between the slewing axis and a vertical line, due to working on slanted or uneven ground

3.1.4.3
lifting movement

raising or lowering of the boom system and/or the load which causes a change in its vertical position

3.1.4.4
maximum outreach
largest outreach shown on the load chart
3.1.4.5
outreach

horizontal distance between the axis of rotation of the column and point of load attachment

3.1.4.6
outreach, hydraulic

outreach which can be obtained with hydraulically actuated parts of the boom system

3.1.4.7
slewing
rotational movement of the column and boom system about the axis of the column
3.1.5 Loads
3.1.5.1
dead load

force due to masses of fixed and movable crane parts which act permanently on the structure while the

crane is being used
3.1.5.2
gross load

sum of payload, lifting attachments and if applicable a portion of the hoist rope

3.1.5.3
maximum working load
maximum load that may be lifted shown on the load plate
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SIST EN 12999:2020
EN 12999:2020 (E)
3.1.5.4
payload

load which is lifted by the crane and suspended from the non-fixed load-lifting attachment(s) or, if such

an attachment is not used, directly from the fixed load lifting attachment(s)
3.1.5.5
rated capacity

load that the crane is designed to lift for a given operating condition (e.g. configuration, position of the

load)
3.1.5.6
rated capacity indicator

device which gives, within tolerance limits specified in 5.6.2.1, at least a continuous indication that the

rated capacity is exceeded, and another continuous indication (on certain crane types) of the approach

to the rated capacity
3.1.5.7
rated capacity limiter

system that automatically prevents the crane from handling loads in excess of its rated capacity (see also

C.1)
3.1.6 Moments
3.1.6.1
net lifting moment
rated capacity multiplied by outreach
3.1.6.2
total lifting moment
sum of net lifting moment and the moment produced by dead loads
3.1.7 Valves
3.1.7.1
flow sensitive check valve
valve which stops the flow when a pre-set pressure drop level is exceeded
3.1.7.2
load holding valve

valve which is normally closed and is opened by an external force to enable flow of fluid out of a hydraulic

actuator
3.1.7.3
main relief valve
valve which limits the pressure supplied to the hydraulic system of the crane
3.1.7.4
port relief valve
valve which limits the pressure supplied to a hydraulic actuator
3.1.7.5
pressure relief valve

valve which automatically relieves the hydraulic oil to the tank when the pressure exceeds a specified

value
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SIST EN 12999:2020
EN 12999:2020 (E)
3.1.8 Miscellaneous
3.1.8.1
danger zone

any space within and/or around machinery in which a person can be exposed to a hazard

[SOURCE: EN ISO 12100:2010, 3.11]
3.1.8.2
setting-up function
crane function used to prepare the crane for lifting
3.1.8.3
vessel
floating installation that the crane is mounted on
3.2 Illustration of parts

The terms which are used in this document for the main parts of a loader crane are indicated in Figure 1

a) and b).
Boom system consists of items 6 to 12 plus items 16 to 22, if applicable.
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SIST EN 12999:2020
EN 12999:2020 (E)
Key
nd rd
1 base 9 2 boom cylinder 17 3 boom
2 stabilizer extension 10 boom extension, hydraulic 18 3 boom cylinder
3 stabilizer leg 11 extension cylinders 19 boom extension, hydraulic

4 slewing mechanism, e.g. rack and 12 boom extension, manual 20 extension cylinders

pinion, slewing ring
5 Column 13 hook 21 hook
6 1 boom 14 controls 22 boom extension, manual
7 1 boom cylinder 15 stabilizer foot
nd rd
8 2 boom 16 3 boom adapter
Figure 1 — Main parts of a loader crane
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SIST EN 12999:2020
EN 12999:2020 (E)
3.3 Abbreviated terms
Table 1 — Abbreviated terms
Abbreviation Meaning
SRP/CS Safety Related Parts of Control System
PL Performance Level
PFH Average probability of dangerous failure per hour
PLr Performance Level Required
MTTF expectation of the mean time to dangerous failure
4 List of significant hazards

Table 2 shows a list of significant hazardous situations and hazardous events that could result in risks to

persons during intended use and foreseeable misuse. It also contains corresponding cross-references to

the relevant clauses in this document that are necessary to reduce or eliminate the risks associated with

those hazards. Before using this document, it is important to carry out a risk assessment of the crane. As

a minimum, the hazards covered by Table 2 should be included in the risk assessment.

Table 2 — List of significant hazards and associated requirements
No. Hazards Relevant clause(s) in
this document
1 Mechanical hazards due to:
1.1 - Inadequacy of mechanical strength of the crane 5.1, 5.2, 5.3, 5.4, 5.5.8,
and its parts 5.8.2.1, 5.8.2.2
1.2 Crushing hazard 5.8.1, 5.8.2.3, 5.10.2.3
1.3 Shearing hazard 5.8.1, 5.8.2.3, 5.10.2.3
1.4 Entanglement hazard 5.8.1, 5.8.2.2, 5.8.2.3,
5.10.2.3
1.5 Drawing-in or trapping hazard 5.8.1, 5.8.2.2, 5.8.2.3,
...

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