SIST EN 1853:2018+AC:2019
(Main)Agricultural machinery - Trailers - Safety
Agricultural machinery - Trailers - Safety
This European Standard specifies safety requirements and their verification for the design and construction of trailers with a tipping body, balanced or semi-mounted, used in agriculture, as defined in 3.1. It includes also hook-lift trailers and trailers with conveyor device as defined in 3.9.
This European Standard does not deal with trailers equipped with pick-up devices and/or rear spreading devices.
Trailers with a load push/push-off device, slats or alternating moving floor may be removed from this standard, provided a new work item on loader wagons and forage transport wagons (prEN ISO 4254-17) is accepted.
This European Standard does not give Required Performance Levels for the identified safety functions.
This European Standard, taken together with EN ISO 4254-1, deals with the significant hazards, hazardous situations and events relevant to agricultural trailers, when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Table A.1), excepting the hazards arising from:
- hazards related to conveying devices other than those defined in 3.9.1 and 3.9.2, for example load push/push-off device;
- hazards related to the environment and road safety;
- hazards related to braking.
In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
This document is not applicable to trailers which are manufactured before the date of its publication as EN.
Landmaschinen - Anhänger - Sicherheit
Diese Europäische Norm legt sicherheitstechnische Anforderungen und deren Überprüfung für die Gestaltung und Konstruktion von Gelenkdeichsel- und Starrdeichsel-Anhängern mit einem Kippaufbau fest, wie in 3.1 definiert, die in der Landwirtschaft verwendet werden. Sie enthält auch Hakenlift-Anhänger und Anhänger mit Fördereinrichtung, wie in 3.9 definiert.
Diese Europäische Norm behandelt keine Anhänger, die mit Pick-up-Einrichtungen und/oder am Heck angebrachten Verteileinrichtungen ausgerüstet sind.
Anhänger mit Abschiebeeinrichtung, Leisten oder Schubboden dürfen, vorausgesetzt, dass ein neues Arbeitsthema für Ladewagen und Häckseltransportwagen (prEN ISO 4254-17) angenommen ist, aus dieser Norm ausgenommen werden.
Diese Europäische Norm enthält keine geforderten Performance Level für die ermittelten Sicherheitsfunktionen.
Diese Europäische Norm, gemeinsam mit EN ISO 4254-1 angewendet, behandelt signifikante Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse, die für landwirtschaftliche Anhänger relevant sind, wenn sie wie beabsichtigt und unter den Bedingungen der vom Hersteller vernünftigerweise vorhersehbaren Fehlanwendung verwendet werden (siehe Tabelle A.1), mit Ausnahme der Gefährdungen in Bezug auf:
- andere als in 3.9.1 und 3.9.2 definierte Fördereinrichtungen, zum Beispiel Abschiebeeinrichtung;
- die Umwelt und Straßensicherheit;
- das Bremsen.
Außerdem legt sie die Art der Informationen über sicheres Arbeiten fest, die vom Hersteller zur Verfügung zu stellen sind.
Dieses Dokument gilt nicht für Anhänger, die vor dessen Veröffentlichungsdatum als Europäische Norm hergestellt worden sind.
Matériel agricole - Remorques - Sécurité
La présente Norme européenne spécifie les prescriptions de sécurité et les moyens de vérification associés pour la conception et la construction des remorques à benne basculante, traînées et semi-portées, utilisées en agriculture, telles que définies au paragraphe 3.1. Elle inclut également les remorques multi-caissons, ainsi que les remorques à dispositif de fond mouvant tel que définies au paragraphe 3.9.
La présente Norme européenne ne traite pas des remorques équipées de dispositifs de ramassage et/ou de dispositifs d’épandage arrière.
Les remorques équipées d'un fond poussant, d'un plancher à lattes ou d'un plancher mobile alternatif peuvent être retirées de la présente norme, sous réserve que le nouveau sujet de travail consacré aux remorques auto-chargeuses et aux remorques de transport de fourrage (prEN ISO 4254-17) soit adopté.
La présente Norme européenne ne donne pas de niveaux de performance requis pour les fonctions de sécurité identifiées.
La présente Norme européenne, appliquée conjointement avec l'EN ISO 4254-1, traite des phénomènes, situations et événements dangereux significatifs associés aux remorques agricoles, dans le cadre d'une utilisation normale ou d'un mauvais usage raisonnablement prévisible par le fabricant (voir Tableau A.1), à l'exclusion des phénomènes dangereux engendrés par :
- des dispositifs de convoyage autres que ceux définis aux paragraphes 3.9.1 et 3.9.2, par exemple, les fonds poussants ;
- l'environnement et la sécurité routière ;
- le freinage.
En outre, elle spécifie le type d'informations que le fabricant doit donner sur les pratiques d'utilisation sûre.
Le présent document ne s'applique pas aux remorques fabriquées avant sa date de publication au titre de Norme européenne.
Kmetijski stroji - Prikolice - Varnost (vključno s popravkom AC)
Ta evropski standard določa varnostne zahteve in njihovo preverjanje za načrtovanje in konstrukcijo prikolic s prekucnim kesonom (uravnoteženih in polpriklopnih), ki se uporabljajo v kmetijstvu, kot je opredeljeno v točki 3.1. Vključuje tudi prikolice s kljuko za dvigovanje in prikolice s transportno napravo, kot je opredeljeno v točki 3.9.
Ta evropski standard ne obravnava prikolic, opremljenih z napravami za pobiranje in/ali sledilnimi trosilnimi napravami.
Prikolice z napravo za potiskanje/odrivanje bremen, stebri ali izmeničnim premikajočim se dnom bodo mogoče umaknjene iz tega standarda, če se sprejme nova delovna postavka o nakladalnih vagonih in vagonih za transport krme (prEN ISO 4254-17).
Ta evropski standard ne podaja zahtevanih ravni zmogljivosti za identificirane varnostne funkcije.
Ta evropski standard skupaj s standardom EN ISO 4254-1 obravnava večje nevarnosti, nevarne razmere in primere, ki se navezujejo na kmetijske prikolice, kadar se uporabljajo v skladu z namembnostjo in pod pogoji pričakovane nepravilne uporabe, kot jih je predvidel proizvajalec (glej preglednico A.1), razen nevarnosti, ki jih povzročajo:
– nevarnosti, povezane z napravami za prenos, ki niso zajete v točkah 3.9.1 in 3.9.2, na primer naprava za potiskanje/odrivanje bremen;
– nevarnosti, povezane z varnostjo okolja in varnostjo v cestnem prometu;
– nevarnosti, povezane z zaviranjem.
Poleg tega določa vrsto podatkov glede varnih delovnih postopkov, ki jih mora zagotoviti proizvajalec.
Ta dokument se ne uporablja za prikolice, ki so bile izdelane, preden je bil dokument objavljen kot standard EN.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 1853:2018+AC:2019
01-september-2019
Kmetijski stroji - Prikolice - Varnost (vključno s popravkom AC)
Agricultural machinery - Trailers - Safety
Landmaschinen - Anhänger - Sicherheit
Matériel agricole - Remorques - Sécurité
Ta slovenski standard je istoveten z: EN 1853:2017+AC:2019
ICS:
65.060.10 Kmetijski traktorji in prikolice Agricultural tractors and
trailed vehicles
SIST EN 1853:2018+AC:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 1853:2018+AC:2019
---------------------- Page: 2 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 65.060.10 Supersedes EN 1853:2017
English Version
Agricultural machinery - Trailers - Safety
Matériel agricole - Remorques - Sécurité Landmaschinen - Anhänger - Sicherheit
This European Standard was approved by CEN on 12 June 2017 and includes Corrigendum 1 approved by CEN on 12 June 2017.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1853:2017+AC:2019 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Safety requirements and/or protective/risk reduction measures . 11
4.1 General . 11
4.2 Stability . 11
4.2.1 Stability and immobilisation of the detached trailer . 11
4.2.2 Stability in the raised position when tipping . 12
4.2.3 Minimum load on the drawbar hitch . 12
4.2.4 Blocking device for axle suspension and bogie axle . 13
4.2.5 Stability during travelling . 13
4.3 Boarding means . 13
4.4 Tipping . 14
4.5 Hydraulic, pneumatic and electrical interconnections . 15
4.6 Safety of the control system . 15
4.6.1 General . 15
4.6.2 Performance levels . 15
4.7 Other requirements . 15
4.8 Load securing . 16
4.9 Jacking points . 16
4.10 Visibility. 16
4.11 Opening and closing of the rear discharge gate . 16
4.11.1 General . 16
4.11.2 Opening . 17
4.11.3 Closing . 17
4.12 Conveyor devices . 18
4.13 Additional requirements for high-tip trailers . 19
4.14 Additional requirements for hook-lift trailers . 19
4.14.1 Stability in the raised position when tipping . 19
4.14.2 Load on the drawbar hitch . 19
4.14.3 Locking device . 20
4.14.4 Markings . 20
4.14.5 Overload . 20
4.14.6 Safety of the control system . 20
5 Verification of the safety requirements and/or protective/risk reduction measures . 21
6 Information for use . 23
6.1 Instruction handbook . 23
6.1.1 General . 23
6.1.2 Additional information specific to hook-lift trailers . 26
6.2 Marking . 26
6.3 Warning signs . 27
Annex A (normative) List of hazards . 29
2
---------------------- Page: 4 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
Annex B (normative) Stability tests (rear tipping trailers) . 34
B.1 Scope . 34
B.2 Test equipment . 34
B.3 Test procedure . 34
B.4 Test acceptance . 35
Annex C (normative) Verification of stability by calculation . 36
C.1 Scope . 36
C.2 Calculation method . 36
C.3 Basic assumptions for the calculation . 36
C.4 Input data . 36
C.5 Coordinate systems . 38
C.6 Stability criterion . 39
C.7 Calculation procedure . 39
C.8 Stability check . 40
Annex D (normative) Calculation method of vertical force in the tractor coupling device
during exchange . 43
Annex E (normative) Scraper floor. 44
E.1 Guarding . 44
E.1.1 General . 44
E.1.2 Moving path of scraper floor . 44
E.1.3 Front turning points . 47
E.1.4 Rear turning points . 49
E.2 Adjustment of scraper floor . 50
Annex F (normative) Visibility . 51
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of Directive 2006/42/EC aimed to be covered . 52
Bibliography . 53
3
---------------------- Page: 5 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
European foreword
This document (EN 1853:2017+AC:2019) 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 December 2019, and conflicting national standards
shall be withdrawn at the latest by December 2019.
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 Corrigendum 1 issued by CEN on 12 June 2019.
This document supersedes ˜EN 1853:2017™.
This document has been prepared under a mandate 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.
This document includes the corrigendum 1 which corrects clause 5, table 1, and table C.1 and figure C.1
editorially.
The start and finish of text introduced or altered by corrigendum is indicated in the text by tags ˜™.
Significant technical changes between this document and the previous edition
(EN 1853:1999+A1:2009) are:
— addition of hook-lift trailers to the scope;
— addition of requirements for hook-lift trailers;
— addition of requirements for rear doors;
— addition of requirements for high-tip trailers;
— addition of requirements for conveyors;
— addition of an Annex regarding “Verification of stability by calculation”;
— update of Normative references.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
4
---------------------- Page: 6 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
Introduction
This document is a type-C standard as stated in EN ISO 12100.
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.
5
---------------------- Page: 7 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
1 Scope
This European Standard specifies safety requirements and their verification for the design and
construction of trailers with a tipping body, balanced or semi-mounted, used in agriculture, as defined
in 3.1. It includes also hook-lift trailers and trailers with conveyor device as defined in 3.9.
This European Standard does not deal with trailers equipped with pick-up devices and/or rear
spreading devices.
Trailers with a load push/push-off device, slats or alternating moving floor may be removed from this
standard, provided a new work item on loader wagons and forage transport wagons
(prEN ISO 4254-17) is accepted.
This European Standard does not give Required Performance Levels for the identified safety functions.
This European Standard, taken together with EN ISO 4254-1, deals with the significant hazards,
hazardous situations and events relevant to agricultural trailers, when they are used as intended and
under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Table A.1),
excepting the hazards arising from:
— hazards related to conveying devices other than those defined in 3.9.1 and 3.9.2, for example load
push/push-off device;
— hazards related to the environment and road safety;
— hazards related to braking.
In addition, it specifies the type of information on safe working practices to be provided by the
manufacturer.
This document is not applicable to trailers which are manufactured before the date of its publication as
EN.
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 ISO 4254-1:2015, Agricultural machinery - Safety - Part 1: General requirements (ISO 4254-1:2013)
EN ISO 5353:1995, Earth-moving machinery, and tractors and machinery for agriculture and forestry -
Seat index point (ISO 5353:1995)
EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk
reduction (ISO 12100:2010)
EN ISO 13857:2008, Safety of machinery - Safety distances to prevent hazard zones being reached by
upper and lower limbs (ISO 13857:2008)
ISO 5676:1983, Tractors and machinery for agriculture and forestry — Hydraulic coupling — Braking
circuit
ISO 15817:2012, Earth-moving machinery — Safety requirements for remote operator control systems
6
---------------------- Page: 8 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
ISO 16028:1999, Hydraulic fluid power — Flush-face type, quick-action couplings for use at pressures of
20 MPa (200 bar) to 31,5 MPa (315 bar) — Specifications
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the
following apply.
3.1
trailer
trailed agricultural vehicle fitted with wheels or endless tracks, intended mainly to carry loads and
designed to be towed by an agricultural tractor or a self-propelled machine
[SOURCE: ISO 12934:2013, 3.6 modified]
3.1.1
balanced load carrying trailer
(drawbar) trailer with at least two axles, at least one of which is steerable and a drawbar towing device
that allows vertical movement so that vertical forces cannot be transferred to the towing vehicle
Note 1 to entry: See Figure 1.
[Source: ISO 12934:2013, 3.6.1 modified]
Figure 1 — Examples of balanced trailer
3.1.2
semi-mounted trailer
trailer from which part of vertical load is transferred to the towing vehicle
Note 1 to entry: See Figure 2.
Figure 2 — Examples of semi-mounted trailer
7
---------------------- Page: 9 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
3.1.3
high-tip trailer
trailer equipped with a system to raise the tipping axis
Note 1 to entry: See Figure 3.
Key
1 tipping axis
Figure 3 — Examples of high-tip trailer
3.1.4
hook-lift trailer
trailer including a hook-lift system for picking up, transporting, tipping and exchanging of roll off
loading platforms, e.g. containers, dump bodies, frames
Note 1 to entry: See Figure 4.
8
---------------------- Page: 10 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
a) Transporting mode
b) Tipping mode
c) Exchange mode
Figure 4 — Example of hook-lift trailer
3.4
height in the highest tipping position
vertical distance between ground plane and the highest part of the raised load body when in maximum
tipping position
Note 1 to entry: See Figure 5.
9
---------------------- Page: 11 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
a) Semi-mounted trailer b) High-tip trailer
Key
H height in the highest tipping position
Figure 5 — Height in the highest tipping position
3.5
sideboard
fixed or movable wall that constitutes a load retaining side of the body and which may be hinged on the
platform of the trailer
3.6
load body
volume consisting of a platform with a front wall, two sideboards and a rear wall or discharge gate to
contain the load for its transport and discharging
[SOURCE: EN 690:2013, 3.2 modified]
3.7
tipping
action that allows the load carried in the trailer to be discharged by tilting the body
Note 1 to entry: The tipping can be lateral or to the rear.
3.9
conveyor device
device able to convey/move/carry the material in the load body, that are of different types such as
scraper floor, conveyor belt, load push/push-off device or alternating moving floor
Note 1 to entry: A combination of these devices is possible.
[SOURCE: EN 690:2013, 3.3 modified]
3.9.1
scraper floor
conveyor device made by two or more dragging chains and by a number of slats
[SOURCE: EN 690:2013, 3.3.1]
10
---------------------- Page: 12 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
3.9.2
conveyor belt
conveyor device made by belt
[SOURCE: EN 690:2013, 3.3.2]
3.9.3
load push/push-off device
conveyor device formed by a moveable wall for pushing the material in the load body towards the
discharge opening
[SOURCE: EN 690:2013, 3.3.3 modified]
3.9.4
alternating moving floor
conveyor device made by alternating moving slats
3.10
blocking device for axle suspension and bogie axle
system for eliminating free movement of axle suspension or bogie articulation
4 Safety requirements and/or protective/risk reduction measures
4.1 General
Trailers shall comply with the safety requirements and/or protective measures of this clause.
In addition, the machine shall be designed according to the principles of EN ISO 12100 for relevant but
not significant hazards which are not dealt with by this document.
Unless otherwise specified in this standard, the trailer shall comply with the requirements of
EN ISO 4254-1:2015 and with EN ISO 13857:2008, Table 1, Table 3 and Table 4 as appropriate, unless a
specific reference is made, for access to trapping and shearing points.
4.2 Stability
4.2.1 Stability and immobilisation of the detached trailer
4.2.1.1 Stability
Trailers when detached shall comply with the stability requirements given in EN ISO 4254-1:2015,
6.2.1.1.
Verification: this requirement shall be checked by calculation or by the following test:
The trailer shall stand, loaded with its maximum permissible load, and with any steerable axles in the
most unfavourable angle on a firm surface with a slope of 8,5°. The trailer shall be positioned on the
slope in the most unfavourable orientation. The parking brake or chocks shall be engaged.
During the test, all supports (i.e. wheels, supporting devices) shall remain on the test surface.
4.2.1.2 Ground pressure
When the trailer is parked on a horizontal surface, containing a uniform load equal to the maximum
permissible load declared by the manufacturer, any supporting devices other than wheels shall comply
with EN ISO 4254-1:2015, 6.2.1.2.
Verification: by calculation or measurement.
11
---------------------- Page: 13 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
4.2.1.3 Immobilisation
4.2.1.3.1 General
The design shall ensure that the detached trailer does not move (e.g. by the provision of chocks or with
the parking brake applied).
Trailers with the sum of the technically permissible masses per axle of at least 750 kg shall be provided
with a parking brake.
The parking brake system with which the trailer is equipped shall be capable of holding the laden
detached trailer stationary on a 18 % up and down gradient.
Verification: this requirement shall be checked by standing the trailer, loaded with its maximum
permissible load, and with any steerable axles in the most unfavourable angle on a firm surface with a
slope of 18 %. This test shall be carried out with the trailer positioned on the slope in the up and down
gradient.
During the test, the trailer shall not move.
4.2.1.3.2 Chocks
If chocks are required to prevent any movement of the detached trailer, a device shall be provided on
the trailer for their storage when not in use.
This device shall be designed to secure the chocks so they cannot detach from the trailer
unintentionally or move freely when the trailer is in motion.
The wheel chocks need to be safe to operate and be easily accessible from outside the contour of the
machine. Hooks or chains shall not be used as a device for storage/fixation. The device should
preferably be at the front or in close proximity to the wheels.
Verification: by design check and visual inspection.
4.2.2 Stability in the raised position when tipping
Trailers shall be so designed that they remain stable when loaded and raised to the highest position
achievable for tipping.
Verification: by tests described in Annex B or by calculation described in Annex C for rear tipping
trailers.
The lateral tipping angle shall be limited by design to ensure the stability of lateral tipping trailers on
firm ground with a slope of 5°.
Verification: by functional test or design check.
4.2.3 Minimum load on the drawbar hitch
The vertical downward load on the drawbar of semi-mounted trailers, measured at the hitch point shall
be positive and at least 3 % of the weight of the empty trailer with the trailer in lowered position and it
shall be at least 500 N in all tipping positions, with:
— the trailer on a horizontal firm surface;
— the trailer body empty;
— the trailer equipped with its relevant load compensation devices, as specified by the manufacturer.
12
---------------------- Page: 14 ----------------------
SIST EN 1853:2018+AC:2019
EN 1853:2017+AC:2019 (E)
This vertical downward load can be achieved, for example, by using counterweights, outriggers
positioned to compensate the load, by positioning of the axle or bogie or by a blocking device for axle
suspension and bogie axle (see 4.2.4) in case of suspended bogies.
Verification: by measurement.
4.2.4 Blocking device for axle suspension and bogie axle
If fitted on a trailer, the blocking device for axle suspension and bogie axle (see 3.10) shall act
automatically.
4.2.5 Stability during travelling
During travelling, the trailer shall remain stable.
Verification: by calculation or test with the trailer fully laden and a minimum static tipping angle
of 23°.
NOTE Verification method by calculation is still under investigation for consideration at the next revision or
amendment of this standard.
4.3 Boarding means
4.3.1 Exterior boarding means in conformity with EN ISO 4254-1:2015, 4.8.3 shall be provided on a
trailer with sideboards.
When dismountable sideboards are not in place and the platform is higher than 1 m from the ground,
similar boarding mean
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.