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BS EN 703:2021

BS EN 703:2021

$198.66

Agricultural machinery. Safety. Silage loading, mixing and/or chopping and distributing machines

Published By Publication Date Number of Pages
BSI 2021 62
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This document, used together with EN ISO 4254?1:2015 , specifies the safety requirements and their verification for the design and construction of mounted, semi-mounted, trailed or self-propelled machines that have a combination of two or more of the following functions: loading, mixing, chopping and distributing silage and/or other feedstuffs or materials used for animal bedding such as straw, to be used by one operator only. It includes those fitted with a built-in loading crane. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.

This document applies only to machines that have the following functional combinations:

  1. mixing and distributing functions;

  2. mixing, chopping and distributing functions;

  3. loading, mixing and distributing functions;

  4. loading, mixing, chopping and distributing functions;

  5. chopping and distributing functions; or

  6. loading, chopping and distributing functions.

Silage block cutters, even if they carry out a single function, are covered by this document.

This document does not apply to:

  1. machines which pick up green fodder directly from the field;

  2. loading cranes;

  3. silage buckets;

  4. round or rectangular unbalers.

NOTE 1

Loading cranes are dealt with in EN 12999:2020 .

NOTE 2

Autonomous silage loading, mixing and/or chopping and distributing machines (robotic feed systems) will be dealt with in a separate standard ( EN ISO 3991 , under preparation).

This document deals with the significant hazards, hazardous situations and events relevant to machines for loading, mixing and/or chopping and distributing silage and/or other feedstuffs, when they are used as intended and under the conditions foreseen by the manufacturer as listed in Clause 4, except for the hazards arising from:

  1. failure of the control circuit;

  2. inadequate seating;

  3. inadequate lighting;

  4. travelling of machinery;

  5. break-up of parts rotating at high speed;

  6. cutting hazard during service on sharp parts (e.g. blades of the mixing and/or chopping device).

It is not applicable to environmental hazards (except noise).

It does not deal with stability when travelling.

This document is not applicable to machines for loading, mixing and/or chopping and distributing silage and/or other feedstuffs which are manufactured before the date of publication of this document by CEN.

PDF Catalog

PDF Pages PDF Title
2 undefined
10 1 Scope
11 2 Normative references
12 3 Terms and definitions
13 4 Safety requirements and/or protective/risk reduction measures
4.1.1 Principles
4.1.2 Principles of safety integration
14 4.1.3 Control systems
4.1.4 Guards and protective devices
4.1.4.1 General
4.1.4.2 Moving transmission parts
4.1.4.3 Transmission of power between self-propelled machinery (or tractor) and recipient machinery
4.1.4.4 Starting and stopping the engine
4.1.5 Electricity supply, batteries
4.1.6 Extreme temperatures
4.1.7 Fire and explosion
4.1.8 Vibrations
4.1.9 Maintenance
4.1.10 Work positions and operator’s station
15 4.1.11 Uncontrolled movements
4.1.12 Roll-over and tip-over
4.1.13 Means of access
4.1.14 Falling or ejected objects or fluids
4.2.1 General
4.2.2 Requirements for hold-to-run controls
16 4.2.3 Additional requirements for manual controls
4.3.1 For work area of the cutting, loading tools and loading door located at front of the machine
17 4.3.2 For work area of the cutting, loading tools and loading door located at rear of the machine
20 4.4.1 Stopping time of powered cutting and loading tools
4.4.2 Loading door
4.5.1 General
21 4.5.2 Maintenance of cutting tools
4.5.3 Blockages
22 4.5.4 Protection against inadvertent re-engagement in case of mechanical elements stopped by blockage
4.6.1 Protection against contact with moving parts
4.6.1.1 General
4.6.1.2 Machine with cutting and loading tools or with loading door
23 4.6.2 Checking of the mixing
4.6.3 Top edges of the chamber of the machine
24 4.6.4 Manual addition of feedstuffs
4.6.5 Maintenance of mixing and/or chopping tools
4.7.1 General
25 4.7.2 Case where a conveyor is used
30 4.7.3 Case where an auger is used
31 4.7.4 Case where a distributor cylinder is used
4.7.4.1 General
33 4.7.5 Case of free discharge
4.7.6 Case of turbines
37 4.9.1 Noise reduction as a safety requirement
4.9.1.1 Reduction at source by design and by protective measures
4.9.1.2 Reduction by information
38 4.9.2 Verification of requirements on noise
4.12.1 Stability and immobilisation of the detached machine
4.12.1.1 Stability
4.12.1.2 Ground pressure
4.12.1.3 Immobilisation
39 4.12.2 Minimum load on the drawbar hitch
5 Verification of the safety requirements and/or protective/risk reduction measures
40 6 Information for use
44 Annex A (informative)Examples of machines and components
53 Annex B (informative)List of significant hazards
57 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered

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BS EN 703:2021
$198.66