SIST EN 16952:2018+A1:2021
(Main)Agricultural machinery - Rough-terrain Work Platforms for Orchard’s operations (WPO) - Safety
Agricultural machinery - Rough-terrain Work Platforms for Orchard’s operations (WPO) - Safety
1.1 This European Standard, when used together with EN ISO 4254 1 and EN 15811, specifies safety requirements and measures for self-propelled rough-terrain work platforms for orchard’s operations (WPO) operating at a maximum of 3 m high as defined in 3.1, where the vertical projection of the centre of the area of the platform in all platform configurations at the maximum chassis inclination specified by the manufacturer is always inside the tipping lines, used in agriculture, designed to work on unimproved natural terrain and/or disturbed terrain and intended to move at least two persons to working positions in an orchard where they are carrying out fruit picking, thinning out, pruning, or other operations related to orchard from the work platform.
NOTE For examples of rough-terrain work platforms for orchard’s operations (WPO), see Figures E. 1 to E.3.
This European Standard describes methods for the elimination or reduction of hazards arising from the intended use of these machines in the course of normal operation and service, except hazards related to conveyor belts and elevators for the bin. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.
When requirements of this document are different from those which are stated in EN ISO 4254 1, the requirements of this document take precedence over the requirements of EN ISO 4254 1 for machines that have been designed and built according to the provisions of this document.
This European Standard, taken together with EN ISO 4254 1 and EN 15811, deals with all the significant hazards, hazardous situations and events (as listed in Table 1) relevant to WPOs, when they are used as intended and under the conditions of misuse foreseeable by the manufacturer.
It does not cover the hazards arising from:
a) use in potentially explosive atmospheres;
b) getting on and off the work platform at changing levels;
c) environmental aspects;
d) road safety.
1.2 This European Standard does not apply to:
a) Mobile Elevating Work Platforms (MEWPs) (see EN 280);
NOTE 1 Figure E.4 gives an example of this type of machine.
b) boom-type MEWPs (see EN 280);
NOTE 2 Figure E.5 and E.6 give examples of this type of machine.
c) tail lifts (see EN 1756-1 and EN 1756-2);
d) mast climbing work platforms (see EN 1495);
e) lifting tables (see EN 1570-1);
f) aircraft ground support equipment (see e.g. EN 1915-1 and EN 1915-2);
g) elevating operator positions on industrial trucks (see EN 1726-2);
h) unguided work cages suspended from lifting appliances (see e.g. EN 1808);
i) machines having centre of the area of the platform outside the tipping lines.
NOTE 3 Figure E.7 gives an example of this type of machine.
Landmaschinen - Geländearbeitsbühnen für Obstplantagearbeiten (WPO) - Sicherheit
1.1 Diese Europäische Norm legt, wenn sie zusammen mit EN ISO 4254-1 und EN 15811 verwendet wird, Sicherheitsanforderungen und Sicherheitsmaßnahmen für alle Arten und Größen von selbstfahrenden Geländearbeitsbühnen für Obstplantagearbeiten (WPO), wie in 3.1 definiert, fest, die in der Landwirtschaft verwendet werden, die für die Arbeit auf naturbelassenem gewachsenem und/oder aufgewühltem Gelände konstruiert sind und die dafür vorgesehen sind, mindestens zwei Personen zu Arbeitspositionen in einer Obstplantage zu bewegen, in denen sie Fruchtpflücke-, Plenter-, Beschneide-Arbeiten oder andere Arbeiten der Obstplantagenpflege von der Arbeitsbühne aus ausführen, bei denen vorgesehen ist, dass Personen die Arbeitsbühne nur in Grundstellungen auf Bodenebene oder auf dem Fahrgestell betreten und verlassen.
Sie beschreibt Verfahren zur Beseitigung oder Reduzierung von Gefährdungen, die durch die vorgesehene Verwendung dieser Maschinen durch mindestens zwei Personen (Bediener) im Verlauf von normalem Betrieb und Wartung entstehen, ausgenommen Gefährdungen in Bezug auf Förderbänder und Gabelzinken. Außerdem legt sie die Art der Informationen über sicheres Arbeiten fest (einschließlich Restrisiken), die vom Hersteller zur Verfügung zu stellen sind.
Unterscheiden sich Anforderungen aus diesem Dokument von denen, die in EN ISO 4254-1 angegeben sind, haben die Anforderungen dieses Dokumentes, für Maschinen, die nach den Festlegungen aus diesem Dokument ausgelegt und gebaut worden sind, Vorrang vor den Anforderungen von EN ISO 4254-1.
Diese Europäische Norm behandelt, zusammen mit EN 4254-1 und EN 15811, alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse (wie in Tabelle 1 aufgelistet) zu WPOs, wenn diese wie vorgesehen verwendet werden und unter Bedingungen von Fehlanwendung, die vom Hersteller vorhersehbar sind.
Sie deckt nicht die Gefährdungen ab, die entstehen durch:
a) die Verwendung in potentiell explosiven Atmosphären;
b) Aufsteigen auf und Absteigen von der Arbeitsbühne bei sich ändernden Höhen.
1.2 Diese Europäische Norm gilt nicht für:
a) fahrbare Hubarbeitsbühnen (MEWPs) (siehe EN 280);
ANMERKUNG 1 Bild D.4 zeigt ein Beispiel für diesen Maschinentyp.
b) Ausleger-MEWPs (siehe EN 280);
ANMERKUNG 2 Bilder D.5 und D.6 zeigt Beispiele für diesen Maschinentyp.
c) Hubladebühnen (siehe EN 1756-1 und EN 1756-2);
d) mastgeführte Kletterbühnen (siehe EN 1495);
e) Hubtische (siehe EN 1570);
f) Luftfahrt-Bodengeräte (siehe z. B. EN 1915-1 und EN 1915-2);
g) hebbare Fahrerplätze auf Flurförderzeugen (siehe EN 1726-2);
h) ungeführter Arbeitskorb, aufgehängt an Hebezeug (siehe z. B. EN 1808).
Matériel agricole - Plateformes élévatrices tout terrain pour arboriculture (PEMPA) - Sécurité
1.1 La présente Norme européenne, utilisée conjointement avec l'EN ISO 4254 1 et l'EN 15811, spécifie des prescriptions et mesures techniques de sécurité pour plates-formes élévatrices tout terrain automotrices pour arboriculture (PEMPA) opérant à une hauteur maximale de 3 m telles que définies en 3.1, dont la projection verticale du centre de la surface de la plate-forme se trouve toujours à l'intérieur des lignes de renversement, dans toutes les configurations de la plate-forme et à l'inclinaison maximale du châssis spécifiée par le fabricant, utilisées en agriculture, conçues pour le travail sur un terrain naturel non aménagé et/ou terrain non nivelé, et destinées à déplacer au minimum deux personnes dans un verger vers des positions de travail où les travaux de récolte, d'éclaircissage, d'élagage ou d'autres opérations en rapport avec l'entretien du verger depuis la plate-forme élévatrice sont réalisés.
NOTE Pour des exemples de plates-formes élévatrices tout terrain pour arboriculture (PEMPA), voir les Figures E.1 à E.3.
La présente Norme européenne décrit les méthodes permettant de réduire ou d’éliminer les phénomènes dangereux liés à l'utilisation prévue de ces machines dans des conditions normales de fonctionnement et de service, à l'exception des phénomènes dangereux liés aux bandes transporteuses et aux appareils de levage pour le palox. En outre, elle spécifie le type d'informations que le fabricant doit donner sur les pratiques d'utilisation sûre (y compris les risques résiduels).
Lorsque des exigences du présent document diffèrent de celles indiquées dans l'EN ISO 4254 1, les exigences du présent document prévalent sur celles de l'EN ISO 4254 1, et ce pour les machines conçues et fabriquées conformément aux exigences du présent document.
La présente Norme européenne, utilisée conjointement avec l'EN ISO 4254 1 et l'EN 15811, traite de tous les phénomènes dangereux, situations et événements dangereux significatifs (tels qu'énumérés au Tableau 1), relatifs aux plates-formes élévatrices tout terrain pour arboriculture (PEMPA) lorsqu'elles sont utilisées normalement et dans les conditions de mauvais usage prévisible par le fabricant.
Elle ne couvre pas les phénomènes dangereux résultant :
a) de l'utilisation dans des atmosphères explosibles ;
b) de niveaux différents d'accès et de sortie de la plate-forme ;
c) d'aspects liés à l'environnement ;
d) de la sécurité routière.
1.2 La présente Norme européenne ne s'applique pas :
a) aux plates-formes élévatrices mobiles de personnel (PEMP) (voir l'EN 280) ;
NOTE 1 La Figure E.4 présente un exemple de ce type de machine.
b) aux PEMP de type à rampes (voir l'EN 280) ;
NOTE 2 Les Figure E.5 et E.6 présentent un exemple de ce type de machine.
c) aux hayons élévateurs (voir l'EN 1756-1 et l'EN 1756-2) ;
d) aux plates-formes de travail se déplaçant le long de mâts (voir l'EN 1495) ;
e) aux tables élévatrices (voir l'EN 1570-1) ;
f) au matériel au sol pour aéronefs (voir par exemple l'EN 1915-1 et l'EN 1915-2) ;
g) aux postes de conduite élevables des chariots de manutention (voir l'EN ISO 3691-3) ;
h) aux nacelles non guidées, suspendues à des appareils de levage (voir par exemple l'EN 1808) ;
i) aux machines dont le centre de la surface de la plate-forme se trouve hors des lignes de renversement.
NOTE 3 La Figure E.7 présente un exemple de ce type de machine.
Kmetijski stroji - Grobe terenske delovne platforme za dejavnosti v sadovnjakih (WPO) - Varnost
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 16952:2018+A1:2021
01-december-2021
Kmetijski stroji - Grobe terenske delovne platforme za dejavnosti v sadovnjakih
(WPO) - Varnost
Agricultural machinery - Rough-terrain Work Platforms for Orchard’s operations (WPO) -
Safety
Landmaschinen - Geländearbeitsbühnen für Obstplantagearbeiten (WPO) - Sicherheit
Matériel agricole - Plateformes élévatrices tout terrain pour arboriculture (PEMPA) -
Sécurité
Ta slovenski standard je istoveten z: EN 16952:2018+A1:2021
ICS:
53.020.99 Druga dvigalna oprema Other lifting equipment
65.060.99 Drugi kmetijski stroji in Other agricultural machines
oprema and equipment
SIST EN 16952:2018+A1:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 16952:2018+A1:2021
EN 16952:2018+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 53.020.99; 65.060.99 Supersedes EN 16952:2018
English Version
Agricultural machinery - Rough-terrain Work Platforms
for Orchard's operations (WPO) - Safety
Matériel agricole - Plateformes élévatrices tout terrain Landmaschinen - Geländearbeitsbühnen für
pour arboriculture (PEMPA) - Sécurité Obstplantagearbeiten (WPO) - Sicherheit
This European Standard was approved by CEN on 18 September 2017 and includes Amendment 1 approved by CEN on 14 June
2021.
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16952:2018+A1:2021 E
worldwide for CEN national Members.
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EN 16952:2018+A1:2021 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 8
4 List of significant hazards . 11
5 Safety requirements and/or measures . 20
5.1 General . 20
5.2 Structural and stability calculations . 20
5.3 Chassis . 20
5.4 Extending structure . 23
5.4.1 Methods to avoid overturning and exceeding permissible stresses . 23
5.4.2 Extending structure extension and retraction . 24
5.4.3 Protection against hazards related to the movements of the extending structure . 24
5.4.4 Position retention of the work platform . 25
5.4.5 Speed for raising and lowering of the work platform . 25
5.5 Extending structure drive systems . 25
5.6 Work platform . 26
5.7 Controls . 28
5.8 Electrical equipment . 30
5.9 Hydraulic systems . 31
5.10 Hydraulic cylinders . 32
5.10.1 Structural design . 32
5.10.2 Safety device for load holding cylinders . 37
5.11 Safety devices . 38
6 Verification of the safety requirements and/or measures . 38
6.1 Examinations and tests . 38
6.1.1 General . 38
6.1.2 Design check . 39
6.1.3 Manufacturing check . 39
6.1.4 Tests . 40
6.2 Type tests of WPOs . 46
6.2.1 General . 46
6.2.2 Tests before placing on the market . 46
6.3 Validation of safety functions and performance levels . 47
7 Information for use . 47
7.1 Instruction handbook . 47
7.1.1 General . 47
7.2 Marking . 50
Annex A (normative) Calculations . 53
A.1 General . 53
A.2 Loads and forces . 53
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A.3 Determination of loads and forces . 53
A.4 Stability calculations . 57
A.5 Structural calculations . 58
Annex B (normative) Requirements for protective curtains . 65
B.1 General . 65
B.2 Tensile resistance test . 65
B.3 Perforation resistance test . 65
B.4 Wear resistance test . 65
Annex C (normative) Additional requirements for wireless controls and control systems . 66
C.1 General . 66
C.2 Unauthorized use . 66
C.3 Control limitation . 66
C.4 Stop . 66
C.5 Serial data communication . 67
C.6 Use of more than one operator control station . 67
C.7 Battery-powered operator control stations . 67
C.8 Receiver . 67
C.9 Warnings . 67
C.10 Information for use . 67
Annex D (informative) Calculation examples - factor "z", kerb test . 68
Annex E (informative) Examples of Machines . 72
E.1 Examples of Machines covered by the standard. 72
E.2 Examples of Machines excluded from the scope of the standard . 74
Annex ZA (informative) !Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC aimed to be covered" . 78
Bibliography . 82
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EN 16952:2018+A1:2021 (E)
European foreword
This document (EN 16952:2018+A1:2021) has been prepared by Technical Committee CEN/TC 144
“Tractors and machinery for agriculture and forestry”, the secretariat of which is held by AFNOR.
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 2022 and conflicting national standards shall be
withdrawn at the latest by April 2022.
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 includes Amendment 1 approved by CEN on 14 June 2021.
This document supersedes !EN 16952:2018".
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
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) / Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZA, which is an integral part
of this document.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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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EN 16952:2018+A1:2021 (E)
Introduction
This document is a type-C standard as specified in EN ISO 12100.
The machinery concerned and the extent to which hazards, hazardous situations and hazardous events
are covered are indicated in the scope of this document.
Significant hazards that are common to all the agricultural machines (self-propelled, mounted, semi-
mounted and trailed) are dealt with in EN ISO 4254-1.
When provisions of this type C standard are different from those which are stated in type A or B
standards, the provisions of this type C standard take precedence over the provisions of the other
standards, for machines that have been designed and built according to the provisions of this type C
standard.
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.
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1 Scope
1.1 This European Standard, when used together with EN ISO 4254-1 and EN 15811, specifies safety
requirements and measures for self-propelled rough-terrain work platforms for orchard’s operations
(WPO) operating at a maximum of 3 m high as defined in 3.1, where the vertical projection of the centre
of the area of the platform in all platform configurations at the maximum chassis inclination specified by
the manufacturer is always inside the tipping lines, used in agriculture, designed to work on unimproved
natural terrain and/or disturbed terrain and intended to move at least two persons to working positions
in an orchard where they are carrying out fruit picking, thinning out, pruning, or other operations related
to orchard from the work platform.
NOTE For examples of rough-terrain work platforms for orchard’s operations (WPO), see Figures E.1 to E.3.
This European Standard describes methods for the elimination or reduction of hazards arising from the
intended use of these machines in the course of normal operation and service, except hazards related to
conveyor belts and elevators for the bin. In addition, it specifies the type of information on safe working
practices (including residual risks) to be provided by the manufacturer.
When requirements of this document are different from those which are stated in EN ISO 4254-1, the
requirements of this document take precedence over the requirements of EN ISO 4254-1 for machines
that have been designed and built according to the provisions of this document.
This European Standard, taken together with EN ISO 4254-1 and EN 15811, deals with all the significant
hazards, hazardous situations and events (as listed in Table 1) relevant to WPOs, when they are used as
intended and under the conditions of misuse foreseeable by the manufacturer.
It does not cover the hazards arising from:
a) use in potentially explosive atmospheres;
b) getting on and off the work platform at changing levels;
c) environmental aspects;
d) road safety.
1.2 This European Standard does not apply to:
a) Mobile Elevating Work Platforms (MEWPs) (see EN 280);
NOTE 1 Figure E.4 gives an example of this type of machine.
b) boom-type MEWPs (see EN 280);
NOTE 2 Figure E.5 and E.6 give examples of this type of machine.
c) tail lifts (see EN 1756-1 and EN 1756-2);
d) mast climbing work platforms (see EN 1495);
e) lifting tables (see EN 1570-1);
f) aircraft ground support equipment (see e.g. EN 1915-1 and EN 1915-2);
g) elevating operator positions on industrial trucks (see EN ISO 3691-3);
h) unguided work cages suspended from lifting appliances (see e.g. EN 1808);
i) machines having centre of the area of the platform outside the tipping lines.
NOTE 3 Figure E.7 gives an example of this type of machine.
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2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 349:1993+A1:2008, Safety of machinery - Minimum gaps to avoid crushing of parts of the human body
EN 15811:2014, Agricultural machinery - Fixed guards and interlocked guards with or without guard
locking for moving transmission parts (ISO/TS 28923:2012, modified)
EN 60204-1:2006, Safety of machinery - Electrical equipment of machines - Part 1: General requirements
(IEC 60204-1:2016)
EN 60204-32:2008, Safety of machinery - Electrical equipment of machines - Part 32: Requirements for
hoisting machines (IEC 60204-32:2008)
EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN ISO 4254-1:2015, Agricultural machinery - Safety - Part 1: General requirements (ISO 4254-1:2013)
EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction
(ISO 12100:2010)
EN ISO 14982:2009, Agricultural and forestry machinery - Electromagnetic compatibility - Test methods
and acceptance criteria (ISO 14982:1998)
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 13850:2015, Safety of machinery - Emergency stop function - Principles for design (ISO 13850:2015)
EN ISO 13857:2008, Safety of machinery - Safety distances to prevent hazard zones being reached by upper
and lower limbs (ISO 13857:2008)
ISO 525:2013, Bonded abrasive products - General requirements
ISO 845:2006, Cellular plastics and rubbers - Determination of apparent density
ISO 3864-1:2011, Graphical symbols - Safety colours and safety signs - Part 1: Design principles for safety
signs and safety markings
ISO 4302:2016, Cranes - Wind load assessment
ISO 4305:2014, Mobile cranes - Determination of stability
ISO 16001:2017, Earth-moving machinery - Object detection systems and visibility aids - Performance
requirements and tests
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3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010,
EN ISO 4254-1:2015 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 http://www.iso.org/obp
3.1
rough-terrain work platforms for orchard’s operations (WPO)
self-propelled machine used in agriculture, designed to work on unimproved natural terrain and/or
disturbed terrain, which consists as a minimum of a work platform with controls, an extending structure
and a chassis, where the vertical projection of the center of the area of the platform in all platform
configurations at the maximum chassis inclination specified by the manufacturer is always inside the
tipping lines, for which travelling is allowed with lowered and with raised work platform and it is
controlled from a point of control at the chassis or at the work platform, which is intended to move at
least two persons to working positions in an orchard where they are carrying out fruit picking, thinning
out, pruning, or other operations related to the orchard from the work platform
Note 1 to entry: See Figure 1.
3.2
work platform
fenced platform or a cage which can be moved under load to the required working position and from
which carrying out fruit picking, thinning out, pruning, or other operations related to orchard’s upkeep
can be carried out
Note 1 to entry: See Figure 1.
3.3
platform extension
extension
part of the work platform which can shift laterally in respect of the direction of motion of the WPO, and
which extends the work platform in order to facilitate the approach to the orchard to perform the
necessary operations
3.4
extending structure
structure which is connected to the chassis and supports the work platform. It allows vertical movement
of the work platform to its required position
Note 1 to entry: Example of extending structure: scissors mechanism.
Note 2 to entry: See Figure 1.
3.5
chassis
base of the WPO
Note 1 to entry: See Figure 1.
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3.6
access position
position(s) to provide access to and from the work platform
3.7
transport position
position of the elements of the WPO prescribed by the manufacturer in which the WPO is intended to
travel without working on the trees and the extensions are retracted
3.8
lowering
all operations to move the work platform to a lower level
3.9
raising
all operations to move the work platform to a higher level
3.10
self-levelling rough-terrain work platforms for orchard’s operations (self-levelling WPO)
WPO which can compensate variation of terrain slope with variation of work platform’s inclination in
respect of a longitudinal or transversal axis, or both
3.11
rated load
load for which the WPO has been designed for normal operation and which is composed of persons, tools
and products acting vertically on the work platform
Note 1 to entry: A WPO usually has more than one rated load (e.g. for work platform and platform extensions if
any, or for transport and working position).
3.12
load cycle
cycle starting from the access position, carrying out work and returning to the access position
3.13
type test
test on the representative model of a new design or one incorporating significant changes to an existing
design, carried out by or on behalf of the manufacturer or his authorized representative
3.14
load sensing system
system of monitoring the vertical load and vertical forces on the work platform
Note 1 to entry: The system includes the measuring device(s), the way the measuring devices are incorporated
in the machinery and the signal processing system.
3.15
wireless control
means by which the WPO operator’s commands are transmitted without any physical connection for at
least part of the distance between the control console and the rest of the control system
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3.16
working space
area in which the work platform is designed to work within the specified loads and forces under normal
operating conditions
Note 1 to entry: WPO usually have more than one working space.
3.17
elevator for the bin
front or rear mounted lifting equipment provided to move the bin from ground to the platform and vice-
versa
Note 1 to entry: Fork lift is a possible elevator for the bin.
Key
1 work platform (see 3.2)
2 extending structure (see 3.4)
3 chassis (see 3.5)
Figure 1 — Illustration of some definitions
3.18
side limit slope
maximum slope in degrees perpendicular to the longitudinal axis of the WPO that can be achieved without
tipping of the WPO
3.19
longitudinal limit slope
maximum slope in degrees with the longitudinal axis of the WPO parallel to the slope that can be achieved
without tipping of the WPO
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EN 16952:2018+A1:2021 (E)
3.20
maximum lateral operating slope
slope 50 (%) of the side limit slope
3.21
maximum longitudinal operating slope
slope 50 (%) of the longitudinal limit slope
3.22
maximum operating slope
minimum value of the maximum lateral operating slope and the maximum longitudinal operating slope
3.23
automatic mode
form of control of the machine which allows travelling in forward direction without continuous action of
the operator on a dedicated control
4 List of significant hazards
Hazards have been identified by the risk assessment procedure and the corresponding requirements
formulated (see Table 1).
A hazard which is not considered significant and for which, therefore, no requirements are formulated, is
shown in the Corresponding Requirements column as NS (not significant).
Table 1 — List of significant hazards
Hazardous situation Clause/subclause of Clause/subclause of
a
Hazard
No.
and event EN ISO 4254-1:2015 this Standard
A.1 Mechanical hazard
A.1.1 Crushing hazard — Controls 4.5.3; 5.1.3.2; 5.1.8; 6.1 5.3.12; 5.4.3.2; 5.6.10;
5.7
— Boarding means 4.7.1.1.2; 4.7.1.2.5; 4.7.2; No requirements in
4.8 addition to those in
EN ISO 4254-1:2015
— Platforms 4.7.2 5.4, 5.5, 5.6
— Power transmission 6.4 5.4
— Working tools 4.10 NS
—Service/maintenance 4.11; 4.17.1; 4.17.3; 5.4.4
4.9.2; 4.9.3
—Roll-over 5.1.2.3; 5.7 5.2; 5.3; 5.4.1; 5.4.2
—Shearing/pinching 5.1.4 5.4.3
points
— Moving the machine 5.2 5.3;
— Stability 6.2 5.2; 5.3; 5.4.1, 5.4.2
— Mounting of machines 6.2.2; 6.2.3; 6.3 5.6.11
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SIST EN 16952:2018+A1:2021
EN 16952:2018+A1:2021 (E)
Hazardous situation Clause/subclause of Clause/subclause of
a
Hazard
No.
and event EN ISO 4254-1:2015 this Standard
A.1.2 Shearing hazard — Controls 4.5.3; 5.1.3.2; 5.1.8; 6.
...
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